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					co m f o r t        c e i l i n g d i ff u s e r s - v i s i b l e




Ceiling diffusers - visible

                                                                                              	 About	Lindab                                     1

                                                                                              	 Comfort	and	Design                               2

                                                                                              	 Product	overview	/	symbols                       3

                                                                                              	 Theory                                           4

                                                                                              	 Ceiling	diffusers                                5

                                                                                              	 Ceiling	diffusers		-	visible                     6

                                                                                              	 Plenum	boxes                                     7

                                                                                              	 Wall	diffusers                                   8

                                                                                              	 Nozzles                                          9

                                                                                              	 Ventiduct	                                      10

                                                                                              	 Grilles                                         11

                                                                                              	 Displacement	diffusers                          12

                                                                                              	 VAV	                                            13

                                                                                              			Air	flow	regulators                            14

                                                                                              	 Control	valves                                  15

                                                                                              			Fresh	air	valves/overflow	units                16

                                                                                              	 Cleanroom	diffusers                             17

                                                                                              	 Contents                                        18

© 02.2010 Lindab Ventilation A/S. All forms of copying without written permition are forbidden.         is Lindab AB’s registered trademark.   307
Lindab’s products, systems and product group and product designations are protected by intellectual property rights (IPR).
       co m f o r t   c e i l i n g d i ff u s e r s - v i s i b l e




       Ceiling diffusers - visible
       Ceiling diffusers for visible mounting
1
                            Product           Functions                Page

2         Combination overview                                         310


                            DCS                                        311
3

4                           LCS                                        314



5
                            PCS                                        318


6
       Industrial diffusers
7
                            Product           Functions                Page

8
          Introduction                                                 323


9                           RCW                                        325


10
                            RCWB                                       331

11
                            HLD                                        337

12
                            FKD                                        343
13

14

15

16

17

18

 308                                                              Right	to	alterations	reserved
co m f o r t     c e i l i n g d i ff u s e r s - v i s i b l e




Ceiling diffusers - visible

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                                                                                   PCS, Dahlerup’s Packhus, converted warehouse, Copenhagen

Usage                                                                          Function
                                                                                                                                                   12
Visible	 diffusers	 are	 normally	 used,	 where	 a	 suspended	                 The	 diffusers	 PCS,	 LCS	 and	 DCS	 are	 designed	 for	 vis-
ceiling	 is	 not	 in	 place	 to	 hide	 the	 airduct	 systems	 and	             ible	mounting	and	fulfill	most	requirements	of	design	and	
plenum	boxes.	                                                                 function.	The	diffusers	have	integrated	plenum	boxes	with	          13
                                                                               built-in	 dampers	 and	 measuring	 devices.	 As	 standard	
The	 diffusers	 normally	 function	 by	 the	 mixed	 ventilation	               products	the	diffusers	are	available	in	circular	design	with	
principle,	 and	 are	 used	 typically	 in	 office	 environments,	              a	sideconnection	painted	in	RAL	9010	gloss	30.                      14
canteens,	 schools	 or	 similar	 rooms,	 for	 comfort	 ventila-
tion.	In	rooms	with	different	and	variable	loads,	the	PCS	
and	LCS	can	be	motorized	in	order	to	achieve	the	possi-                                                                                            15
bilty	of	VAV-function,	and	consequently	the	abillity	to	vary	
the	air	flow	/	volume	and	achieve	an	individual	regulation	
of	the	ventilation	in	the	room.	                                                                                                                   16

                                                                                                                                                   17

                                                                                                               PCS, perforated ceiling diffuser
                                                                                                                                                   18

                                                             Right	to	alterations	reserved                                                        309
       co m f o r t       c e i l i n g d i ff u s e r s - v i s i b l e




       Ceiling diffusers - visible
                      Design	                                                  Motor	                                        Accessories	 Box	
1                     See	Comfort	and	Design                                                                                 See	Product	pages




                                                         Supp./exhau.
                                              Function
2


                                                                        Size
       Product
                        Nozzle diffuser                                 mm     Manual    Electric	motor   Thermal	actuator    Mounting	bracket   Moduleplate   MBB
3        DCS                                                            100
                                                                        125
                                                                        160
                                                                        200

4                                                                       250
                                                                        315


                        Plain diffuser                                  mm     Manual   Electric	motor    Thermal	actuator    Mounting	bracket   Moduleplate   MBB

5        LCS                                                            125
                                                                        160
                                                                        200
                                                                        250

6                                                                       315


                        Perforated diffuser                             mm     Manual   Electric	motor    Thermal	actuator   Mounting	bracket    Moduleplate   MBB


7        PCS                                                            125
                                                                        160
                                                                        200
                                                                        250
                                                                        315

8                       Swirl diffuser                                  mm     Manual   Electric	motor    Thermal	actuator   Mounting	bracket    Moduleplate   MBB

        RCW                                                             250

9                                                                       315
                                                                        400
                                                                        500
                                                                        630


10                      Swirl diffuser                                  mm     Manual   Electric	motor    Thermal	actuator   Mounting	bracket    Moduleplate   MBB

       RCWB                                                             250
                                                                        315

11                                                                      400
                                                                        500
                                                                        630



12                      Perforated diffuser                             mm     Manual   Electric	motor    Thermal	actuator   Mounting	bracket    Moduleplate   MBB

         HLD                                                            250
                                                                        315
                                                                        400
13                                                                      500
                                                                        630


                        Multicone diffuser                              mm     Manual   Electric	motor    Thermal	actuator    Mounting	bracket   Moduleplate   MBB
14       FKD
                                                                        160
                                                                        200
                                                                        250
                                                                        315

15                                                                      355
                                                                        400
                                                                        450
                                                                        500
                                                                        630
16
                                                                                                           1.	Product	and	tech.	data	depicted	in	catalogue.
                                                                                                           2.	Combination	possible.	Tech.	data	depicted	in	catalogue.
17                                                                                                         3.	Combination	possible.	Tech.	data	not	in	catalogue.	
                                                                                                           4.	If	space	is	empty,	combination	is	not	possible.	


18

 310                                                                            Right	to	alterations	reserved
co mfo rt | cei ling di ffusers - vi sible




Nozzle diffuser                                                                                                              DCS
                                                                          Dimensions
                                                                                                                                                 1

                                                                                                                                                 2

                                                                                                                                                 3

                                                                                                                                                 4
                                                                                                             L
                                                                                                                                                 5

                                                                                                                                                 6
Description
                                                                                      Ø d1
                                                                            H


DCS is a circular diffuser with integrated box for visible
installation. The diffuser is equipped with individually adjust-
able nozzles. The diffuser has an built-in damper and a
                                                                                                                                                 7
measuring device for individual adjustment. DCS is
equipped with a threaded rod at the top for attaching the                                                              ØA
diffuser. The diffuser is suitable for the horizontal supply of                                                                                  8
cooled air, where great flexibility in the dispersal pattern is
required.
                                                                                Ød1          ØA       Ød1         L      H        Weight
                                                                                Size         mm       mm         mm     mm         kg            9
   • Individually adjustable nozzles
                                                                                100          300       100       365        200    3,1
   • Supplied with threaded rod for suspension
                                                                                125          360       125       395        215    4,0
   • Detachable damper for cleaning of duct
                                                                                160          460       160       470        260    5,2      10
                                                                                200          540       200       545        300    7,7
Maintenance                                                                     250          680       250       645        350    10,5
The face plate can be detached and the damper removed to                        315          680       315       685        420    10,8
enable cleaning of the internal parts or the duct. The visible                                                                              11
parts of the diffuser can be wiped with a damp cloth.

                                                                                                                                            12

                                                                                                                                            13

                                                                                                                                            14

                                                                                                                                            15


                                                                          Materials and finish                                              16
                                                                          Material:             Galvanised steel
Ordering example                                                          Nozzles               ABS Plastic, white
Product                           DCS      bbb      A                     Standard finish:      Powder-coated                               17
                                                                          Standard colour:      White, RAL 9010, gloss 30
Type
Size                                                                      The diffuser is available in other colours. Please contact        18
Version                                                                   Lindab’s sales department for further information.


                                          We reserve the right to make changes without prior notice                                        311
       co mfo rt | cei ling di ffusers - vi sible




       Nozzle diffuser                                                                                                                                         DCS
       Technical data
 1
       Capacity                                                                   Throw l0.2
       Volume flow q [l/s] and [m3/h], total pressure pt [Pa], throw              The throw is specified at a speed of 0.2 m/s.
       l0.2 [m] and sound level LWA [dB(A)] can be seen in the dia-
 2     grams.
                                                                                   l0.2 [m]   DCS                                                                        100
                                                                                   10
                                                                                                                                                                            125
       Frequency-related sound effect level                                                                                                                                 160
 3     The sound effect level in the frequency band is defined as
                                                                                    8
                                                                                    7
                                                                                                                                                                            200
                                                                                                                                                                            250
                                                                                    6                                                                                       315
       LWA +Kok                                                                     5

                                                                                    4
 4     Kok values are specified in charts beneath the diagrams on
                                                                                    3
       the following pages
                                                                                    2

 5
       Quick selection
                                                                                                                                                                l0.2 [m]
       Supply air                                                                   1
                                                                                                                                                                            qV [l/s]
 6                                                                                      30      40    50     60   70 80      100             150    200        300        400
                                                                                                                                                                            qV [m3/h]
                       Minimum         pt=50 Pa            pt=50 Pa                             150        200         300        400   500        700    1000

                        Pi=5 Pa      LWA=30dB(A)         LWA=35dB(A)
 7         Size       l/s    m3/h     l/s    m3/h         l/s     m3/h
           100         9      33      15      52          34        123           Sound attenuation
           125        15      53      29      105         42        150           Sound attenuation of the diffusers ΔL from duct to room,
           160        25      91      44      157         65        233           including end reflection, see table below
 8         200        40      145     63      225         95        340
           250        67      241      -       -          115       416                                                      Centre frequency Hz
           315        112     402      -       -          166       596                  Size          63         125        250        500        1K     2K         4K        8K
 9                                                                                        100          14          9          6         17         14     11         9         16
                                                                                          125          16         11          5         14         12     9          10        16
                                                                                          160          14         10          5         16         10     9          9         14
10                                                                                        200          11          7          7         13         8      7          9         14
                                                                                          250          11          7          9          9         7      7          10        14
                                                                                          315          9           6         11          9         6      8          10        14

11                                                                                Balancing
                                                                                  Balancing data is contained in a separate brochure.

12

13

14

15

16

17

18

 312                                              We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Nozzle diffuser                                                                                                                                                                                                                            DCS
Technical data
                                                                                                                                                                                                                                                                               1
  pt [Pa] DCS-100a                                                                                                                 pt [Pa] DCS-200a
250                                                                                                                              250
200
                                                                                                    50
                                                                                                                                 200                                                                                                                                           2
150                                                                                                                              150

                                                                                           45                                                                                                                                                   50
                                                                                                                                 100
100

 70
                                                                                    40                                            70
                                                                                                                                                                                                                                         45
                                                                                                                                                                                                                                                                               3
                                                                                                                                                                                                                                   40
                                                                                                                                  50
                                                                          35
 50                                                                                                                                                                                                                         35
                                                                                                                                  30

 30
                                                                   30                                                                                                                                                  30
                                                                                                                                                                                                                                                                               4
                                                                                                                                  20                                                                         25
                                                              25
                                                                                                                                  15
 20                                                                                                                                                                                                    20
                                                    20                                              LWA dB(A)                                                                                                                             LWA dB(A)
 15
      5                       10          15        20             30          40        50    60 70 80
                                                                                                                   qV [l/s]
                                                                                                                 100
                                                                                                                                  10
                                                                                                                                       20                  30          40         50    60 70 80             100             150         200     250 300
                                                                                                                                                                                                                                                        qV [l/s]               5
                                                                                                                          3                                                                                                                                    3
                                                                                                                   qV [m /h]                                                                                                                            qV [m /h]
           20           30         40    50    60 70 80        100              150        200             300                              80        100               150        200                 300        400       500          700       1000


                                                                                                                                                                                                                                                                               6
           Hz           63         125        250    500           1K              2K           4K         8K                               Hz              63          125            250        500             1K        2K           4K          8K
            Kok         7           4          5         -5          -7            -10         -14         -18                              Kok             11              8           1          -4             -6        -10         -15          -16

                                                                                                                                                                                                                                                                               7
  pt [Pa] DCS-125a                                                                                                                 pt [Pa] DCS-250a
250                                                                                                                              250
200
150
                                                                                                                                 200
                                                                                                                                 150
                                                                                                                                                                                                                                                                               8
                                                                                               50
100                                                                                                                              100                                                                                                                 50
                                                                                    45
 70
                                                                              40
                                                                                                                                  70
                                                                                                                                                                                                                                           45                                  9
 50                                                                                                                               50
                                                                                                                                                                                                                                    40
                                                                   35
 30                                                                                                                               30                                                                                         35
                                                              30

 20                                                 25                                                                            20
                                                                                                                                                                                                                       30                                                 10
 15                                                                                                                               15                                                                         25
                                               20
                                                                                                    LWA dB(A)                                                                                                                             LWA dB(A)
                                                                                                                                                                                                       20
 10                                                                                                                               10
      10               15      20              30        40        50     60 70 80              100
                                                                                                                 qV [l/s]
                                                                                                               150
                                                                                                                        3
                                                                                                                 qV [m /h]
                                                                                                                                       30             40         50     60      70 80         100                 150        200               300
                                                                                                                                                                                                                                                             qV [l/s]
                                                                                                                                                                                                                                                           400
                                                                                                                                                                                                                                                                    3
                                                                                                                                                                                                                                                             qV [m /h]
                                                                                                                                                                                                                                                                          11
           40      50       60 70 80      100             150           200              300         400     500                                      150             200              300         400       500            700          1000




           Hz           63         125        250    500           1K              2K           4K         8K                               Hz              63          125            250        500             1K        2K           4K          8K                   12
            Kok         7           4          4         -4          -7            -9          -14         -20                              Kok             11              8           1          -5             -6        -10         -14          -16


                                                                                                                                                                                                                                                                          13
  pt [Pa] DCS-160a                                                                                                                 pt [Pa] DCS-315a
250                                                                                                                              200
200                                                                                                                              150
150
                                                                                                                                 100
                                                                                                                                                                                                                                                                          14
                                                                                                      50
100
                                                                                                                                  70
                                                                                               45                                                                                                                                          50
 70                                                                                                                               50
 50
                                                                                    40
                                                                                                                                                                                                                            40
                                                                                                                                                                                                                                   45
                                                                                                                                                                                                                                                                          15
                                                                              35                                                  30
                                                                                                                                                                                                                   35
 30                                                                30                                                             20
                                                                                                                                                                                                            30
 20                                                        25                                                                     15
                                                                                                                                                                                                  25                                                                      16
 15                                                                                                                               10
                                                    20                                                                                                                                  20
                                                                                                    LWA dB(A)                                                                                                                             LWA dB(A)
 10                                                                                                                                7
                                                                                                                     qV [l/s]                                                                                                                                qV [l/s]
      15

           60
                  20

                  70 80       100
                                   30         40

                                              150
                                                    50

                                                         200
                                                              60   70 80

                                                                          300
                                                                                   100

                                                                                         400
                                                                                                     150

                                                                                                    500
                                                                                                                  200

                                                                                                                 700
                                                                                                                            3
                                                                                                                     qV [m /h]
                                                                                                                                       60        70    80

                                                                                                                                                           300
                                                                                                                                                                      100

                                                                                                                                                                            400        500
                                                                                                                                                                                            150

                                                                                                                                                                                                         700
                                                                                                                                                                                                            200

                                                                                                                                                                                                                            1000
                                                                                                                                                                                                                                 300           400

                                                                                                                                                                                                                                                1500
                                                                                                                                                                                                                                                           500
                                                                                                                                                                                                                                                                    3
                                                                                                                                                                                                                                                             qV [m /h]    17

           Hz           63         125        250    500           1K              2K           4K         8K                               Hz              63          125            250        500             1K        2K           4K          8K                   18
            Kok         11          8          3         -5          -6            -10         -17         -19                              Kok             9               6           1          -2             -6        -13         -16          -16



                                                                                      We reserve the right to make changes without prior notice                                                                                                                          313
       co mfo rt | cei ling di ffusers - vi sible




       Plain diffuser                                                                                                               LCS
                                                                                Dimensions
 1

 2

 3

 4                                                                                                                L



 5



                                                                                            Ø d1
 6                                                                                 H
       Description
       LCS is a circular diffuser with integrated box for visible
       installation. The diffuser has an unperforated face plate and
 7     can be used for both supply and exhaust air. The diffuser
                                                                                            30


       has a built-in damper and a measuring device for individual
       adjustment. LCS is equipped with a threaded rod at the top                                                           ØA
 8     for suspending the diffuser. The diffuser is suitable for the
       horizontal supply of cooled air, where high impulse is
       required.
                                                                                     Ød1           ØA       Ød1        L      H         m
 9                                                                                   Size          mm       mm        mm     mm         kg
          • Can be used for both supply and exhaust air.
          • Can be connected regardless of straight ducting                           125          240      125       340     215       3,4

            before the diffuser                                                       160          300      160       372     260       4,6
10        • Supplied with integrated threaded rod for suspension                      200          360      200       415     300      6.90

          • Detachable damper for cleaning of duct                                    250          460      250       445     350       9,6

          • High impulse                                                              315          540      315       445     420      11,4

11
       Maintenance
       The face plate can be detached and the damper removed to
12     enable cleaning of the internal parts or the duct. The visible
       parts of the diffuser can be wiped with a damp cloth.


13

14

15

16
                                                                                Materials and finish
       Ordering example                                                         Material:        Galvanised steel
17                                                                              Standard finish: Powder-coated
       Product                          LCS     bbb       A
                                                                                Standard colour: White, RAL 9010, gloss 30
       Type
18     Size                                                                     The diffuser is available in other colours. Please contact
       Version                                                                  Lindab’s sales department for further information.


 314                                            We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Plain diffuser                                                                                                                                               LCS
Technical data
                                                                                                                                                                                         1
Capacity                                                                   Throw l0.2
Volume flow q [l/s] and [m3/h], total pressure pt [Pa], throw              The throw is specified at a terminal velocity of 0.2 m/s.
l0.2 [m] and sound level LWA [dB(A)] can be seen in the dia-
grams.
                                                                                                                                                                                         2
                                                                            l0.2 [m]    LCS-2                                                125 160   200     250
                                                                              6                                                                                          315
Frequency-related sound effect level
The sound effect level in the frequency band is defined as
                                                                             5
                                                                                                                                                                                         3
                                                                             4
LWA + Kok Kok values are given in charts beneath the dia-
grams on the following pages.                                                3
                                                                                                                                                                                         4
                                                                             2
Quick selection
Supply air                                                                                                                                                                               5
                                                                                                                                                              l0.2 [m]
                                                                             1
                                                                                                                                                                       qV [l/s]
                Minimum         pt=50 Pa            pt=50 Pa                     20           30    40        50    60 70 80      100           150     200         300
                                                                                                                                                                       qV [m3/h]
                                                                                                                                                                                         6
                 Pi=5 Pa      LWA=30dB(A)         LWA=35dB(A)                          80   100         150     200         300        400    500      700        1000

    Size       l/s    m3/h     l/s    m3/h         l/s     m3/h
    125        18      65      33      119         42        151                                                                                                                         7
    160        30      108     53      191         63        227           Sound attenuation
    200        44      158     68      245         84        302
                                                                           Sound attenuation of the diffusers ΔL from duct to room,
    250        69      248     105     378         132       475
                                                                           including end reflection, see table below                                                                     8
    315        88      317      -       -          181       652

                                                                                                                       Centre frequency Hz
                                                                                  Size             63         125     250         500         1K       2K        4K        8K
                                                                                   125             19         14       7          19          12       15        14        20
                                                                                                                                                                                         9
Exhaust
                                                                                   160             14         10       6          15          14       14        14        17
                                                                                   200             14         10       11         10          17       12        15        18
                Minimum         Pt=50 Pa            Pt=50 Pa
                                                                                   250             20         16       15         20          15       12        16        19       10
                 Pi=5Pa       LWA= 30 dB(A)      LWA= 35 dB(A)                     315             17         14       14         17          13       12        15        18
    Size       l/s    m3/h     l/s    m3/h         l/s     m3/h
    125        18      66      33      117         43        156
    160        30      107     43      156         65        235
                                                                           Balancing                                                                                                11
    200        44      157     67      242         101       362
                                                                           Balancing data is contained in a separate brochure.
    250        69      248     125     448         147       530
    315        88      316     151     543         186       668                                                                                                                    12

                                                                                                                                                                                    13

                                                                                                                                                                                    14

                                                                                                                                                                                    15

                                                                                                                                                                                    16

                                                                                                                                                                                    17

                                                                                                                                                                                    18

                                           We reserve the right to make changes without prior notice                                                                               315
       co mfo rt | cei ling di ffusers - vi sible




       Plain diffuser                                                                                                                                                                                                                              LCS
       Technical data
 1
         pt [Pa] LCS-2-125a                                                                                                             pt [Pa] LCS-2-125a
       250                                                                                                                            250
 2     200                                                                                                                            200
       150                                                                                                                            150
                                                                                                                                                                                                                                        50
                                                                                                     50
       100                                                                                                                            100
                                                                                                                                                                                                                                 45
 3      70
                                                                                 40
                                                                                           45
                                                                                                                                       70
                                                                                                                                                                                                                       40
        50                                                                                                                             50
                                                                       35                                                                                                                                    35

        30                                                      30                                                                     30                                                          30
 4                                                    25
                                                                                                                                                                                          25
        20                                                                                                                             20
                                           20
        15                                                                                                                             15                                       20
                                                                                                          LWA dB(A)                                                                                                                           LWA dB(A)
 5      10

             15         20                       30              40             50         60        70    80
                                                                                                                         qV [l/s]
                                                                                                                       100
                                                                                                                                       10
                                                                                                                                            10           15       20                30             40        50        60 70 80              100
                                                                                                                                                                                                                                                              qV [l/s]
                                                                                                                                                                                                                                                            150
                                                                                                                                3                                                                                                                                    3
                                                                                                                         qV [m /h]                                                                                                                            qV [m /h]
                  60    70       80        100                       150             200                       300                               40    50     60 70 80         100                  150           200                  300         400    500


 6
                  Hz     63           125        250            500        1K             2K          4K         8K                              Hz         63    125           250            500             1K                2K          4K          8K
                  Kok        7         4          1             -3          -4         -12           -17         -17                             Kok         7        4             3              -4             -6         -11             -14         -16

 7
         pt [Pa] LCS-2-160a                                                                                                             pt [Pa] LCS-2-160a
       250                                                                                                                            250

 8     200
       150
                                                                                                                                      200
                                                                                                                                      150
                                                                                                                                                                                                                                                    50
       100                                                                                                50                          100
                                                                                                                                                                                                                                             45
                                                                                                45
 9      70
                                                                                     40
                                                                                                                                       70
                                                                                                                                                                                                                                      40
        50                                                                                                                             50
                                                                                                                                                                                                                            35
                                                                           35
        30                                                                                                                             30                                                                         30
                                                                 30
10      20                                             25                                                                              20
                                                                                                                                                                                                        25

                                                                                                                                                                                              20
        15                                                                                                                             15
                                            20
                                                                                                          LWA dB(A)                                                                                                                           LWA dB(A)
        10                                                                                                                             10
11           20                  30         40             50         60    70       80          100
                                                                                                                         qV [l/s]
                                                                                                                       150      3
                                                                                                                         qV [m /h]
                                                                                                                                            15         20              30                40         50        60        70 80               100
                                                                                                                                                                                                                                                              qV [l/s]
                                                                                                                                                                                                                                                            150
                                                                                                                                                                                                                                                                     3
                                                                                                                                                                                                                                                              qV [m /h]
                  80     100                 150                200                   300              400           500                         60    70 80      100                    150             200                      300             400     500



12                Hz     63           125        250            500        1K             2K          4K         8K                              Hz         63    125           250            500             1K                2K          4K          8K
                  Kok        9         6          0             -2          -5         -12           -16         -16                             Kok        10        7             2              -5             -6         -11             -14         -15


13
         pt [Pa] LCS-2-200a                                                                                                             pt [Pa] LCS-2-200a
       250                                                                                                                            250
       200                                                                                                                            200
14     150                                                                                                                            150                                                                                                    50
       100                                                                                                50
                                                                                                                                      100                                                                                             45
        70                                                                                      45
15      50                                                                           40
                                                                                                                                       70                                                                               40

                                                                                                                                       50                                                                     35
                                                                           35
        30
                                                                                                                                                                                                   30
                                                                 30
                                                                                                                                       30
16      20
                                                      25                                                                                                                                 25
        15
                                                                                                                                       20
                                            20                                                            LWA dB(A)                                                            20                                                             LWA dB(A)
        10                                                                                                                             15
                                                                                                                          qV [l/s]                                                                                                                               qV [l/s]

17           30         40

                         150
                                      50

                                           200
                                                 60        70    80

                                                                     300
                                                                            100

                                                                                     400         500
                                                                                                       150             200

                                                                                                                      700
                                                                                                                                 3
                                                                                                                          qV [m /h]
                                                                                                                                            30          40

                                                                                                                                                        150
                                                                                                                                                                 50

                                                                                                                                                                      200
                                                                                                                                                                          60        70        80

                                                                                                                                                                                              300
                                                                                                                                                                                                         100

                                                                                                                                                                                                               400           500
                                                                                                                                                                                                                                      150          200

                                                                                                                                                                                                                                                  700
                                                                                                                                                                                                                                                               250
                                                                                                                                                                                                                                                                        3
                                                                                                                                                                                                                                                                 qV [m /h]




18                Hz     63           125        250            500        1K             2K          4K         8K                              Hz         63    125           250            500             1K                2K          4K          8K
                  Kok        6         3          -2            -2          -4         -11           -19         -20                             Kok         7        3             -2             -3             -5             -9          -15         -20



 316                                                                                        We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Plain diffuser                                                                                                                                                                                                               LCS
Technical data
                                                                                                                                                                                                                                                       1
  pt [Pa] LCS-2-250a                                                                                                         pt [Pa] LCS-2-250a
250                                                                                                                        250
200                                                                                                                        200
150                                                                                                                        150                                                                                                                         2
100                                                                                                                                                                                                                     50
                                                                                                  50                       100
                                                                                                                                                                                                                 45
 70

 50
                                                                            40
                                                                                      45                                    70                                                                         40                                              3
                                                                                                                            50                                                              35
 30                                                              35
                                                                                                                                                                                 30
                                                                                                                            30
 20
                                           25
                                                       30                                                                                                                  25
                                                                                                                                                                                                                                                       4
 15                                                                                                                                                               20
                                                                                                                            20
                                                                                              LWA dB(A)                                                                                                                 LWA dB(A)
 10                              20                                                                                         15
                                                                                                            qV [l/s]                                                                                                               qV [l/s]
      50

           200
                 60     70      80

                                 300
                                           100

                                                     400         500
                                                                      150

                                                                                   700
                                                                                      200                 300

                                                                                                       1000
                                                                                                                   3
                                                                                                            qV [m /h]
                                                                                                                                 60         70         80

                                                                                                                                                        300
                                                                                                                                                                  100

                                                                                                                                                                        400          500
                                                                                                                                                                                           150               200

                                                                                                                                                                                                            700              1000
                                                                                                                                                                                                                                 300      3
                                                                                                                                                                                                                                   qV [m /h]           5

           Hz         63        125        250             500        1K         2K          4K        8K                             Hz           63         125       250      500            1K          2K        4K     8K                        6
           Kok        5              2         -3          -2          -4        -11        -18        -19                            Kok          7          4           -1     -3              -5         -10       -15    -17



                                                                                                                                                                                                                                                       7
  pt [Pa] LCS-2-315a                                                                                                         pt [Pa] LCS-2-315a
250                                                                                                                        200
200
                                                                                                                           150
150

                                                                                                                           100
                                                                                                                                                                                                                       50
                                                                                                                                                                                                                                                       8
100                                                                                               50
                                                                                                                                                                                                             45
 70                                                                                    45                                   70
                                                                                                                                                                                                      40
 50                                                                         40                                              50
                                                                                                                                                                                           35
                                                                                                                                                                                                                                                       9
                                                                 35
 30
                                                                                                                                                                                30
                                                      30                                                                    30
 20                                                                                                                                                                       25
 15
                                          25
                                                                                                                            20
                                                                                                                                                                                                                                                  10
                                20                                                            LWA dB(A)                                                        20                                                       LWA dB(A)
 10                                                                                                                         15
                                                                                                               qV [l/s]                                                                                                              qV [l/s]
      80          100                          150               200                        300              400      3
                                                                                                                                 80              100                      150              200                        300          400      3

       300                400            500                    700                1000
                                                                                                               qV [m /h]
                                                                                                                                  300                   400         500               700                     1000
                                                                                                                                                                                                                                     qV [m /h]
                                                                                                                                                                                                                                                  11

           Hz         63        125        250             500        1K         2K          4K        8K                             Hz           63         125       250      500            1K          2K        4K     8K
           Kok        4              1         -3          -2          -3        -11        -19        -22                            Kok          6          3           -1     -2              -4         -12       -19    -18
                                                                                                                                                                                                                                                  12

                                                                                                                                                                                                                                                  13

                                                                                                                                                                                                                                                  14

                                                                                                                                                                                                                                                  15

                                                                                                                                                                                                                                                  16

                                                                                                                                                                                                                                                  17

                                                                                                                                                                                                                                                  18

                                                                                  We reserve the right to make changes without prior notice                                                                                                      317
       co mfo rt | cei ling di ffusers - vi sible




       Perforated diffuser                                                                                                       PCS
                                                                                Dimensions
 1

 2

 3
                                                                                                                  L

 4

 5



                                                                                            Ø d1
                                                                                     H
 6
       Description

       PCS is a circular diffuser with integrated box for visible                           30                              ØD
 7     installation. The diffuser has a perforated face plate and can
       be used for both supply and exhaust air. The diffuser has a
       built-in damper and a measuring device for adjustment.
 8     PCS is equipped with a threaded rod at the top for suspend-                                 ØD       Ød1        L      H       Weight
       ing the diffuser. The diffuser is suitable for the horizontal                 Size          mm       mm        mm     mm        kg
       supply of cooled air.                                                          125          240      125       340     215       3,4
                                                                                      160          300      160       372     260       4,6
 9                                                                                    200          360      200       415     300       6,9
          • Can be used for both supply and exhaust air.
          • Can be connected regardless of straight ducting                           250          460      250       445     350       9,6

            before the diffuser                                                       315          540      315       445     420      11,4
10        • Supplied with integrated threaded rod for suspension
          • Detachable damper for cleaning of duct

11     Maintenance
       The face plate can be detached and the damper removed to
       enable cleaning of the internal parts or the duct. The visible
12     parts of the diffuser can be wiped with a damp cloth.



13

14

15

16
                                                                                Materials and finish
       Ordering example                                                         Material:        Galvanised steel
17     Product                         PCS 2    bbb       A                     Standard finish: Powder-coated
                                                                                Standard colour: White, RAL 9010, gloss 30
       Type
18     Size                                                                     The diffuser is available in other colours. Please contact
       Version                                                                  Lindab’s sales department for further information.


 318                                            We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Perforated diffuser                                                                                                                                    PCS
Technical data
                                                                                                                                                                                  1
Capacity                                                                   Throw l0.2
Volume flow q [l/s] and [m3/h], total pressure pt [Pa], throw              The throw is specified at a terminal velocity of 0.2 m/s.
l0.2 [m] and sound level LWA [dB(A)] can be seen in the dia-
grams.
                                                                                                                                                                                  2
                                                                            l0.2 [m]   PCS-2                                                            125 160
                                                                              6                                                                                   200
Frequency-related sound effect level                                                                                                                              250

The sound effect level in the frequency band is defined as
                                                                             5
                                                                                                                                                                  315             3
                                                                             4
LWA+Kok. Kok values are specified in charts beneath the dia-
grams on the following pages.                                                3
                                                                                                                                                                                  4
                                                                             2
Quick selection
Supply air                                                                                                                                                                        5
                                                                                                                                                       l0.2 [m]
                Minimum         pt=50 Pa            pt=50 Pa                 1
                                                                                                                                                                qV [l/s]
                 Pi=5 Pa      LWA=30dB(A)         LWA=35dB(A)
                                                                                 30       40    50     60       70 80        100           150   200          300
                                                                                                                                                                qV [m3/h]
                                                                                                                                                                                  6
    Size       l/s    m3/h     l/s    m3/h         l/s     m3/h                           150        200           300         400       500     700       1000

    125        20      73      30      106         36        131
    160        34      122     48      173         59        212                                                                                                                  7
    200        53      190     65      235         81        292
    250        79      286     109     393         135       484
                                                                           Sound attenuation
    315        121     437      -       -          188       675
                                                                           Sound attenuation of the diffusers ΔL from duct to room,
                                                                           including end reflection, see table below.                                                             8
Exhaust                                                                                                                 Centre frequency Hz
                                                                                  Size          63         125      250            500     1K     2K      4K        8K            9
                Minimum         Pt=50 Pa            Pt=50 Pa                       125          21          16          6          19      14     12      11        17
                 Pi=5Pa       LWA= 30 dB(A)      LWA= 35 dB(A)                     160          15          11          9          21      15     12      13        16
    Size       l/s    m3/h     l/s    m3/h         l/s     m3/h                    200          12          8           6          15      15      9      11        14
    125        20      73      29      104         43        156                   250          19          15          12         17      12      9      11        14
                                                                                                                                                                             10
    160        34      122     32      117         62        222                   315          16          13          11         14      12      9      12        13
    200        53      190     63      225         104       376
    250        79      286     109     391         146       525           Balancing                                                                                         11
    315        121     437      -       -          191       687           Balancing data is contained in a separate brochure.

                                                                                                                                                                             12

                                                                                                                                                                             13

                                                                                                                                                                             14

                                                                                                                                                                             15

                                                                                                                                                                             16

                                                                                                                                                                             17

                                                                                                                                                                             18

                                           We reserve the right to make changes without prior notice                                                                        319
       co mfo rt | cei ling di ffusers - vi sible




       Perforated diffuser                                                                                                                                                                                                                          PCS
       Technical data
 1
         pt [Pa] PCS-2-125a                                                                                                                   pt [Pa] PCS-2-125a
       250                                                                                                                                  250
 2     200                                                                                                                                  200
       150                                                                                                                                  150
                                                                                                                                                                                                                                         50
       100                                                                                              50                                  100

 3      70                                                                                45                                                 70
                                                                                                                                                                                                                          40
                                                                                                                                                                                                                                45


        50                                                                      40                                                           50
                                                                                                                                                                                                                35
                                                                     35
        30                                                                                                                                   30                                                           30
 4                                                         30
                                                                                                                                                                                                 25
        20                                                                                                                                   20
                                             25
        15                                                                                                                                   15                                        20
                                      20                                                                      LWA dB(A)                                                                                                                         LWA dB(A)
 5      10

             15         20                       30               40                50         60        70        80
                                                                                                                                qV [l/s]
                                                                                                                              100
                                                                                                                                             10
                                                                                                                                                  10           15       20             30             40        50        60 70 80             100
                                                                                                                                                                                                                                                                  qV [l/s]
                                                                                                                                                                                                                                                                150
                                                                                                                                       3                                                                                                                                 3
                                                                                                                                qV [m /h]                                                                                                                         qV [m /h]
                  60    70       80        100                       150                 200                        300                                40    50     60 70 80         100              150            200              300           400       500


 6
                  Hz     63           125         250            500           1K             2K             4K         8K                             Hz         63    125          250         500             1K             2K            4K             8K
                  Kok        6         3              1          -4            -5             -10         -15           -17                            Kok         6        3         2              -3          -6             -10           -13            -16

 7
         pt [Pa] PCS-2-160a                                                                                                                   pt [Pa] PCS-2-160a
       250                                                                                                                                  250

 8     200
       150
                                                                                                                                            200
                                                                                                                                            150
                                                                                                                                                                                                                                                        50
       100                                                                                                                                  100
                                                                                                        50                                                                                                                                    45
 9      70
                                                                                              45
                                                                                                                                             70
                                                                                                                                                                                                                                    40
        50                                                                                                                                   50
                                                                                    40                                                                                                                                     35
        30                                                                35                                                                 30                                                                 30
10      20
                                                                30
                                                                                                                                             20                                                       25
        15                                            25                                                                                     15
                                                                                                                                                                                            20
                                            20                                                                LWA dB(A)                                                                                                                         LWA dB(A)
        10                                                                                                                                   10
11           20                  30          40             50        60        70       80             100
                                                                                                                              qV [l/s]
                                                                                                                            150      3
                                                                                                                              qV [m /h]
                                                                                                                                                  15         20              30            40         50        60        70 80               100
                                                                                                                                                                                                                                                                  qV [l/s]
                                                                                                                                                                                                                                                                150
                                                                                                                                                                                                                                                                         3
                                                                                                                                                                                                                                                                  qV [m /h]
                  80     100                 150                 200                      300                 400         500                          60    70 80      100                150             200                   300               400        500



12                Hz     63           125         250            500           1K             2K             4K         8K                             Hz         63    125          250         500             1K             2K            4K             8K
                  Kok        6         3          -1             -4            -5             -9          -16           -17                            Kok         5        2         0              -6          -5             -8            -13            -18


13
         pt [Pa] PCS-2-200a                                                                                                                   pt [Pa] PCS-2-200a
       250                                                                                                                                  250
       200                                                                                                                                  200
14     150                                                                                                                                  150
                                                                                                                                                                                                                                                   50
       100                                                                                                                                  100
                                                                                                                                                                                                                                         45
        70                                                                                                    50                             70
15      50                                                                                         45                                        50
                                                                                                                                                                                                                               40

                                                                                                                                                                                                                     35
                                                                                         40
        30                                                                                                                                   30                                                            30
                                                                               35
                                                                                                                                                                                                25
16      20
                                                           25
                                                                     30                                                                      20
                                                                                                                                                                                      20
        15                                                                                                                                   15
                                                 20                                                           LWA dB(A)                                                                                                                         LWA dB(A)
        10                                                                                                                                   10
                                                                                                                               qV [l/s]                                                                                                                              qV [l/s]

17           30         40

                         150
                                      50

                                           200
                                                 60        70     80

                                                                     300
                                                                                100

                                                                                         400            500
                                                                                                              150           200

                                                                                                                           700
                                                                                                                                      3
                                                                                                                               qV [m /h]
                                                                                                                                                  30          40

                                                                                                                                                              150
                                                                                                                                                                       50

                                                                                                                                                                            200
                                                                                                                                                                                60    70        80

                                                                                                                                                                                                300
                                                                                                                                                                                                           100

                                                                                                                                                                                                                 400            500
                                                                                                                                                                                                                                    150             200

                                                                                                                                                                                                                                                    700
                                                                                                                                                                                                                                                                   250
                                                                                                                                                                                                                                                                            3
                                                                                                                                                                                                                                                                     qV [m /h]




18                Hz     63           125         250            500           1K             2K             4K         8K                             Hz         63    125          250         500             1K             2K            4K             8K
                  Kok        3         0          -2             -3            -4             -9          -17           -19                            Kok         7        4         -1             -3          -4             -9            -15            -19



 320                                                                                            We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Perforated diffuser                                                                                                                                                                                                       PCS
Technical data
                                                                                                                                                                                                                                                          1
  pt [Pa] PCS-2-250a                                                                                                       pt [Pa] PCS-2-250a
250                                                                                                                      250
200                                                                                                                      200
150                                                                                                                      150                                                                                                                              2
                                                                                                                                                                                                                            50
100                                                                                                                      100
                                                                                                                                                                                                                     45
 70                                                                                         50                            70

 50                                                                                 45                                    50
                                                                                                                                                                                                   35
                                                                                                                                                                                                             40
                                                                                                                                                                                                                                                          3
                                                                          40
 30                                                                                                                       30                                                            30
                                                                    35
                                                                                                                                                                              25
 20                                                       30                                                              20
                                                                                                                                                                      20
                                                                                                                                                                                                                                                          4
 15                                               25                                                                      15
                                                                                            LWA dB(A)                                                                                                                   LWA dB(A)
                                       20
 10                                                                                                                       10
                                                                                                          qV [l/s]                                                                                                                   qV [l/s]
      50

           200
                 60     70      80

                                 300
                                            100

                                                   400         500
                                                                    150

                                                                                700
                                                                                    200                 300

                                                                                                     1000
                                                                                                                 3
                                                                                                          qV [m /h]
                                                                                                                               50

                                                                                                                                    200
                                                                                                                                          60     70      80

                                                                                                                                                          300
                                                                                                                                                                  100

                                                                                                                                                                            400         500
                                                                                                                                                                                             150              200

                                                                                                                                                                                                             700
                                                                                                                                                                                                                                   300

                                                                                                                                                                                                                                1000
                                                                                                                                                                                                                                            3
                                                                                                                                                                                                                                     qV [m /h]            5

           Hz         63        125         250          500        1K         2K          4K        8K                             Hz         63        125      250             500        1K          2K          4K         8K                        6
           Kok        4          1           -3          -3          -4        -9         -17        -18                            Kok        8          5           -2          -3          -5         -9          -14        -16



                                                                                                                                                                                                                                                          7
  pt [Pa] PCS-2-315a                                                                                                       pt [Pa] PCS-2-315a
250                                                                                                                      200
200
                                                                                                                         150
150
                                                                                                                         100                                                                                               50                             8
100
                                                                                                                          70                                                                                       45
 70
                                                                                                50                                                                                                      40
                                                                                                                          50
 50                                                                                  45
                                                                                                                                                                                             35
                                                                                                                                                                                                                                                          9
                                                                          40
                                                                                                                          30
 30                                                                                                                                                                               30
                                                                     35

 20                                                       30                                                              20                                          25
 15                                                25                                                                     15
                                                                                                                                                          20
                                                                                                                                                                                                                                                     10
                                        20                                                  LWA dB(A)                                                                                                                   LWA dB(A)
 10                                                                                                                       10
                                                                                                             qV [l/s]                                                                                                                   qV [l/s]
      80          100                        150               200                        300              400      3
                                                                                                                               80          100                        150               200                         300               400      3

       300                400          500                    700               1000
                                                                                                             qV [m /h]
                                                                                                                                300                400          500                    700                    1000
                                                                                                                                                                                                                                        qV [m /h]
                                                                                                                                                                                                                                                     11

           Hz         63        125         250          500        1K         2K          4K        8K                             Hz         63        125      250             500        1K          2K          4K         8K
           Kok        5          2           -2          -1          -5    -11            -17        -16                            Kok        6          3           -4          -3          -4         -8          -16        -22
                                                                                                                                                                                                                                                     12

                                                                                                                                                                                                                                                     13

                                                                                                                                                                                                                                                     14

                                                                                                                                                                                                                                                     15

                                                                                                                                                                                                                                                     16

                                                                                                                                                                                                                                                     17

                                                                                                                                                                                                                                                     18

                                                                                We reserve the right to make changes without prior notice                                                                                                           321
co m f o r t    c e i l i n g d i ff u s e r s - v i s i b l e




Ceiling diffusers - visible

                                                                                                                                                         1

                                                                                                                                                         2

                                                                                                                                                         3

                                                                                                                                                         4

                                                                                                                                                         5

                                                                                                                                                         6

                                                                                                                                                         7

                                                                                                                                                         8

                                                                                                                                                         9

                                                                                                                                                        10

                                                                                                                                                        11
                                                                                                                               HLD, DSB, Aarhus.

Usage                                                                         Function
                                                                                                                                                        12
For	ventilation	of	larger	rooms	in	industry,	shopping	malls,	                 The	diffusers	have	an	adjustable	jet	pattern,	which	makes	
hangars,	 arenas	 and	 similar	 buildings,	 there	 will	 typi-                the	diffusers	suitable	for	both	heating	and	cooling.	The	jet	
cally	be	a	need	for	both	heating	and	cooling.	This	makes	                     pattern	can	be	adjusted	manually	or	with	several	types	of	                13
demands	on	being	able	to	vary	the	jet	pattern	from	hori-                      electric	motors.	
zontal	(cooling	needs)	to	vertical	(heating	needs).	This	is	in	               RCW/RCWB	 is	 available	 with	 a	 thermal	 actuator,	 where	
order	to	avoid	too	great	a	velocity	in	the	occupied	zone	in	                  the	 jet	 pattern	 is	 adjustable	 in	 relation	 to	 the	 supply	 air	    14
the	cooling	situation,	and	that	the	air	penetrates	the	occu-                  temperature.	This	way	costly	electrical	work	for	the	indi-
pied	zone	in	the	heating	situation,	so	the	greatest	amount	                   vidual	diffusers	is	 saved.	
of	efficiency	is	obtained.	                                                                                                                             15

                                                                                                                                                        16

                                                                                                                                                        17

                                                                                                                            RCW, rotation diffuser
                                                                                                                                                        18

                                                            Right	to	alterations	reserved                                                              323
       co m f o r t   c e i l i n g d i ff u s e r s - v i s i b l e




       Ceiling diffusers - visible
       Industrial diffusers
1
                            Product           Functions                Page

2         Introduction                                                 323


3                           RCW                                        325



4                           RCWB                                       331


5
                            HLD                                        337

6
                            FKD                                        343
7

8

9

10

11

12

13

14

15

16

17

18

 324                                                              Right	to	alterations	reserved
co mfo rt | cei ling di ffusers - vi sible




Swirl diffuser                                                                                                             RCW
                                                                         Dimensions
                                                                                                              Ø
                                                                                                                 d                            1




                                                                                       60
                                                                                                                                              2




                                                                                      H
                                                                                          L
                                                                                                             Ø
                                                                                                                 U
                                                                                                                                              3
                                                                                                             Ø
                                                                                                              D




                                                                                          9
                                                                                                                                              4

                                                                                                                                              5


Description                                                                                                                                   6

RCW is a rotating diffuser particularly suitable for premises
with a high ceiling. The diffuser is equipped with adjustable                                                                                 7
blades, so the supply air pattern can be changed from verti-
cal to horizontal. The blade settings can be adjusted manu-
ally, or the function can be automated using various types of                                                                                 8
motor. RCW with manual blade adjustment is supplied as
standard with a blade setting of 30°. The motorized models
are supplied as standard with a blade setting from 30° to
75°. In the motorized versions, RCW can be supplied with
                                                                               Ød             ØD       H              L    ØU    m*           9
                                                                               Size           mm      mm             mm    mm    kg
an electric on/off motor, a modulating motor or a thermal
actuator, where the supply air pattern is changed in step                       250           360     240            143   285   2.40
                                                                                315           460     267            168   365   3.10
with the supply air temperature                                                                                                          10
                                                                                400           560     292            178   450   4.40

   •   Suitable for both cooling and heating                                    500           670     341            226   570   6.80

   •   Horizontal and vertical dispersal pattern                                630           870     391            273   740   9.90

   •   High induction
                                                                                                                                         11
                                                                         * Motorized models weigh approx. 1 kg more than the
   •   Can be supplied with an electric motor
                                                                         weight stated in the table above.
   •   Can be supplied with a thermal actuator
                                                                                                                                         12
Maintenance                                                              Motor type
The visible parts of the diffuser can be wiped with a damp                        RCW-1 Ød                       Motor
cloth. For other maintenance, see installation instructions.
                                                                                      315-400               NM24A-MF-F
                                                                                                                                         13
                                                                                      500-630               LH24A-MF60

                                                                                                                                         14
                                                                                  RCW-2 Ød                       Motor
                                                                                      250-400                NM24A-F
                                                                                      500-630                LH24A60                     15
Ordering example
Product                           RCW      a       bbb      A
Type
                                                                          Materials and finish
                                                                                                                                         16
                                                                          Material:        Aluminium & steel
Manual                        0
                                                                          Standard finish: Powder-coated
Motorized - modulating        1
                                                                          Standard colour: RAL 9010 Gloss 30                             17
Motorized- on/off             2
Thermal actuator              3                                           Available in other colours. Please contact Lindab's sales
Size                                                                      department for further information.                            18
Version                                                                   Other blade settings can be supplied on request.


                                          We reserve the right to make changes without prior notice                                     325
         co mfo rt | cei ling di ffusers - vi sible




         Swirl diffuser                                                                                                                                    RCW
         Technical data
 1
         RCW with electric modulating motor                                                        Capacity
                                                                                                   Volume flow q [l/s] and [m3/h], total pressure drop pt [Pa],
                                                                                                   throw l0.2 [m] and sound level LWA [dB(A)] can be seen in the
 2                        α°                                                                       diagrams.
                     75
                     70                                                                            Throw l0.2 / turning point l0.0
 3                   65                                                                            Throw l0.2[m] can be seen in the diagrams for isothermal air
                     60                                                                            at a speed of 0.2 m/s. Turning point l0.0 [m] can be seen in
       Blade angle




                     55                                                                            the diagrams for heated air, +5 K, +10 K and +15 K respec-
 4                                                                                                 tively.
                     50
                     45
                                                                                                   Frequency-related sound effect level
 5                   40
                                                                                                   The sound effect level in the frequency band is defined as
                     35                                                                            LWA+Kok. Kok values are specified in charts beneath the dia-
                     30                                                                            grams on the following pages.
 6                        2         4               6              8             10
                                             Control voltage (V)

                                                                                                   Quick selection
 7       RCW with thermal actuator
                                                                                                                                                              l0.2    l0.0
                                                                                                                                qv       qv        Pt      isoterm   +10K
                                                                                                                               [l/s]   [m³/h]     [Pa]
 8                        α°                                                                                                                                 [m]      [m]
                     75                                                                                Size      Angle                          LWA = 40
                     70                                                                                250         30°         138      498        63        10
                                                                                                       250         75°         138      498        22                  5
 9                   65
                                                                                                       315         30°         237      854        65         6
                     60                                                                                315         75°         237      854        24                  6
       Blade angle




                     55                                                                                400         30°         361      1299       60         5
10                   50
                                                                                                       400         75°         361      1299       22                  6
                                                                                                       500         30°         453      1630       52         5
                     45
                                                                                                       500         75°         453      1630       13                  5
                     40                                                                                630         30°         818      2943       57         6
11                   35                                                                                630         75°         818      2943       17                  7

                     30                                                                                                                         LWA = 50
                                                                                                       250         30°         192      692       121        13
                          16   18       20        22        24         26        28
12                                           Temperature (C°)                                          250         75°         192      692        42                  7
                                                                                                       315         30°         329      1183      124         8
                                                                                                       315         75°         329      1183       46                  8

13                                                                                                     400         30°         513      1846      122         7
                                                                                                       400         75°         513      1846       44                  8
                                                                                                       500         30°         636      2290      103         6
                                                                                                       500         75°         636      2290       25                  6
14                                                                                                     630         30°         1136     4088      110         8
                                                                                                       630         75°         1136     4088       32                  9
                                                                                                                                                LWA = 60
15                                                                                                     250         30°         267      962       234        18
                                                                                                       250         75°         267      962        81                 10
                                                                                                       315         30°         455      1638      238        10
                                                                                                       315         75°         455      1638       88                 11
16                                                                                                     400         30°         729      2623      247        11
                                                                                                       400         75°         729      2623       89                 12
                                                                                                       500         30°         893      3216      203         8
17                                                                                                     500         75°         893      3216       49                  9
                                                                                                       630         30°         1577     5679      213        11
                                                                                                       630         75°         1577     5679       62                 12

18

 326                                                               We reserve the right to make changes without prior notice
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Swirl diffuser                                                                                                                                                                                                                      RCW
Technical data
                                                                                                                                                                                                                                                                           1
                                                                                                              60°
  pt [Pa] RCW-250a                                                                   30°                   45° 75°                         pt [Pa] RCW-500a                                                         30°                   45°       60°
150                                                                                                                                      150                                                                                                              75°
                                                                                                                    50
100
                                                                                                          45
                                                                                                                                         100
                                                                                                                                                                                                                                              50
                                                                                                                                                                                                                                                                           2
 70                                                                                                                                       70
                                                                                                40                                                                                                                                 45
 50                                                                                                                                       50
                                                                                      35                                                                                                                                    40
                                                                                                                                                                                                                                                                           3
                                                                           30                                                                                                                                       35
 30                                                                                                                                       30
                                                                 25                                                                                                                                          30
 20                                                                                                                                       20

 15
                                                       20
                                                                                                                                          15
                                                                                                                                                                                                   25                                                                      4
                                                                                                                                                                                            20
                                                                                                          LWA dB(A)                                                                                                                     LWA dB(A)
 10                                                                                                                                       10
                                                                                                                             qV [l/s]                                                                                                                   qV [l/s]
      50      60     70       80 90 100                      150                200                       300             400
                                                                                                                             qV [m3/h]
                                                                                                                                               200               300            400         500         600 700                  1000                1500
                                                                                                                                                                                                                                                        qV [m3/h]          5
            200                300              400     500                 700                  1000                                                       1000                 1500            2000        2500 3000              4000           5000



            Hz       63            125          250     500                1K          2K             4K             8K                              Hz         63        125        250         500          1K           2K       4K             8K                      6
            Kok          7           1           -2         -2             -4          -9            -18            -21                              Kok        12        1            -2          -1          -4         -12      -20             -22


  pt [Pa] RCW-315a
150
                                                                                30°              45°
                                                                                                          60°
                                                                                                                75°                        pt [Pa] RCW-630a
                                                                                                                                         150
                                                                                                                                                                                                                           30°                      45°                    7
                                                                                                               50                                                                                                                                         60°
                                                                                                                                         100                                                                                                              75°
100
                                                                                                     45
                                                                                                                                          70
 70                                                                                        40
                                                                                                                                          50
                                                                                                                                                                                                                                         50                                8
                                                                                                                                                                                                                            45
 50                                                                             35
                                                                                                                                          30                                                                        40
                                                                      30
 30
                                                        25
                                                                                                                                          20                                                            35
                                                                                                                                                                                                                                                                           9
                                                                                                                                          15                                                30
 20                                               20
                                                                                                                                          10                                    25
 15
                                                                                                                                                                     20
                                                                                                          LWA dB(A)
                                                                                                                                           7
                                                                                                                                                                                                                                        LWA dB(A)                     10
 10                                                                                                                                        5
                                                                                                                  qV [l/s]                                                                                                                               qV [l/s]
      100                    150           200                    300                 400            500   600 700                             400         500         600      700                     1000                      1500               2000
                                                                                                                  qV [m3/h]                                                                                                                              qV [m3/h]
            400      500                  700               1000                       1500             2000   2500                             1500             2000           2500        3000               4000         5000                    7000
                                                                                                                                                                                                                                                                      11
            Hz       63            125          250     500                1K          2K             4K             8K                              Hz         63        125        250         500          1K           2K       4K             8K
            Kok      10              2           -1         -3             -4          -10           -17            -21                              Kok        15        5            0           -2          -5         -12      -18             -22
                                                                                                                                                                                                                                                                      12
  pt [Pa] RCW-400a                                                                   30°                  45° 60°75°
                                                                                                                                         Throw l0.2 horizontal
150
                                                                                                                                         Horizontal throw l0.2 is specified for free suspension. If the                                                               13
                                                                                                                                         diffuser is installed < 300 mm from the ceiling, the value
                                                                                                                50
100

 70
                                                                                                     45                                  must be multiplied by 1.4.
                                                                                           40
 50
                                                                                                                                                     RCW 30° isoterm
                                                                                                                                                                                                                                                                      14
                                                                                35                                                        l0.2 [m]                                                                   250                      315
                                                                                                                                          20                                                                                                              400
 30                                                                30
                                                                                                                                          15
                                                                                                                                                                                                                                                          500
 20
                                                        25
                                                                                                                                          10
                                                                                                                                                                                                                                                          630         15
 15                                              20
                                                                                                                                           7
                                                                                                          LWA dB(A)                        6
 10                                                                                                                                        5

      150          200                      300             400            500         600       700
                                                                                                                            qV [l/s]
                                                                                                                         1000
                                                                                                                                           4                                                                                                                          16
                                                                                                                            qV [m3/h]      3
                   700                   1000                1500                2000           2500           3000
                                                                                                                                           2

                                                                                                                                                                                                                                                                      17
            Hz       63            125          250     500                1K          2K             4K             8K                                                                                                                       l0.2 [m]
                                                                                                                                           1
            Kok      12              1           -2         -2             -3          -13           -20            -23                                                                                                            qV [l/s]
                                                                                                                                               10      15 20         30 40 50         70     100    150 200        500 700 1000 1500
                                                                                                                                                                                                                     300

                                                                                                                                                 40 50     70    100      150           300        500 700 1000 1500     3000 5000
                                                                                                                                                                                                                                   qV [m3/h]
                                                                                                                                                                                                                                                                      18

                                                                                            We reserve the right to make changes without prior notice                                                                                                                327
       co mfo rt | cei ling di ffusers - vi sible




       Swirl diffuser                                                                                                                                        RCW

 1

 2

 3

 4

 5
       l0.0 [m]   RCW-250 +5K                                                                  l0.0 [m]   RCW-315 T=+5K                                                   75°
       20                                                                                      20
                                                                                  75°                                                                                           60°
                                                                                  60°
 6     15                                                                                      15

       10                                                                         45°          10                                                                               45°

        7                                                                                       7
        6                                                                                       6
 7      5                                                                                       5
        4                                                                                       4

        3                                                                                       3


 8      2                                                                                       2


                                                                       l0.0 [m]                                                                                     l0.0 [m]
        1                                                                                       1
                                                                                  qV [l/s]                                                                                    qV [l/s]
 9          30      40    50   60 70 80    100    150   200      300           500
                                                                                  qV [m3/h]
                                                                                                    30     40    50   60 70 80    100    150   200     300          500     700
                                                                                                                                                                              qV [m3/h]
                    150    200       300         500    700    1000     1500                               150    200       300         500    700   1000    1500    2000



                  RCW-250 +10K
10     l0.0 [m]
       20
                                                                                  75°
                                                                                               l0.0 [m]
                                                                                               20
                                                                                                          RCW-315 T=+10K

                                                                                                                                                                                75°
       15                                                                         60°          15
                                                                                                                                                                                60°
       10                                                                                      10
11      7
                                                                                  45°
                                                                                                7
                                                                                                                                                                                45°
        6                                                                                       6
        5                                                                                       5
        4                                                                                       4

12      3                                                                                       3

        2                                                                                       2



13      1
                                                                       l0.0 [m]
                                                                                                1
                                                                                                                                                                    l0.0 [m]
                                                                                  qV [l/s]                                                                                    qV [l/s]
            30      40    50   60 70 80    100    150   200      300           500                  30     40    50   60 70 80    100    150   200     300          500     700
                                                                                  qV [m3/h]                                                                                   qV [m3/h]
                    150    200       300         500    700    1000     1500                               150    200       300         500    700   1000    1500    2000
14
       l0.0 [m]   RCW-250 +15K                                                                 l0.0 [m]   RCW-315 T=+15K
       20                                                                                      20

       15                                                                                      15
15                                                                                75°
                                                                                                                                                                                75°

       10                                                                                      10                                                                               60°
                                                                                  60°
        7                                                                         45°           7
        6                                                                                       6                                                                               45°
16      5                                                                                       5
        4                                                                                       4

        3                                                                                       3


17      2                                                                                       2


                                                                       l0.0 [m]                                                                                     l0.0 [m]
        1                                                                                       1
                                                                                  qV [l/s]                                                                                    qV [l/s]
18          30      40    50   60 70 80    100    150   200      300           500
                                                                                  qV [m3/h]
                                                                                                    30     40    50   60 70 80    100    150   200     300          500     700
                                                                                                                                                                              qV [m3/h]
                    150    200       300         500    700    1000     1500                               150    200       300         500    700   1000    1500    2000




 328                                                          We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Swirl diffuser                                                                                                                                     RCW

                                                                                                                                                                                     1

                                                                                                                                                                                     2

                                                                                                                                                                                     3

                                                                                                                                                                                     4

                                                                                                                                                                                     5
l0.0 [m]   RCW-400 T=+5K                                               75°        l0.0 [m]   RCW-500 T=+5K                                                     75°
20                                                                                20
                                                                                                                                                                     60°
                                                                         60°
15                                                                                15
                                                                                                                                                                     45°
                                                                                                                                                                                     6
10                                                                       45°      10

 7                                                                                 7
 6                                                                                 6
 5                                                                                 5                                                                                                 7
 4                                                                                 4

 3                                                                                 3

 2                                                                                 2
                                                                                                                                                                                     8
                                                            l0.0 [m]                                                                                      l0.0 [m]
 1                                                                                 1
                                                                      qV [l/s]                                                                                     qV [l/s]
     100        150   200     300          500        700          1000
                                                                      qV [m3/h]
                                                                                       100      150    200      300          500      700          1000         1500
                                                                                                                                                                   qV [m3/h]
                                                                                                                                                                                     9
              500     700   1000    1500     2000    2500 3000                                 500     700    1000    1500     2000         3000              5000



l0.0 [m]
20
           RCW-400 T=+10K                                                         l0.0 [m]
                                                                                  20
                                                                                             RCW-500 T=+10K
                                                                                                                                                                                10
15                                                                       75°      15
                                                                                                                                                                     75°
                                                                         60°
                                                                                                                                                                     60°
10                                                                                10

 7                                                                       45°       7                                                                                 45°        11
 6                                                                                 6
 5                                                                                 5
 4                                                                                 4

 3                                                                                 3                                                                                            12
 2                                                                                 2



 1
                                                            l0.0 [m]
                                                                                   1
                                                                                                                                                          l0.0 [m]              13
                                                                      qV [l/s]                                                                                     qV [l/s]
     100        150   200     300          500        700          1000                100      150    200      300          500      700          1000         1500
                                                                      qV [m3/h]                                                                                    qV [m3/h]
              500     700   1000    1500     2000    2500 3000                                 500     700    1000    1500     2000         3000              5000
                                                                                                                                                                                14
l0.0 [m]   RCW-400 T=+15K                                                         l0.0 [m]   RCW-500 T=+15K
20                                                                                20

15                                                                                15
                                                                        75°
                                                                                                                                                                     75°
                                                                                                                                                                                15
10                                                                      60°       10
                                                                                                                                                                     60°
 7                                                                                 7
 6                                                                      45°        6                                                                                 45°
 5
 4
                                                                                   5                                                                                            16
                                                                                   4

 3                                                                                 3

 2                                                                                 2
                                                                                                                                                                                17
                                                            l0.0 [m]                                                                                      l0.0 [m]
 1                                                                                 1
                                                                      qV [l/s]                                                                                     qV [l/s]
     100        150   200     300          500        700          1000
                                                                      qV [m3/h]
                                                                                       100       150   200      300          500      700          1000         1500
                                                                                                                                                                   qV [m3/h]
                                                                                                                                                                                18
              500     700   1000    1500     2000           3000                               500     700    1000    1500     2000         3000              5000




                                                 We reserve the right to make changes without prior notice                                                                     329
       co mfo rt | cei ling di ffusers - vi sible




       Swirl diffuser                                                                                                        RCW

 1

 2

 3

 4

 5
       l0.0 [m]    RCW-630 T=+5K                                    75°          60°
       20


 6     15
                                                                                       45°
       10

         7
         6
 7       5
         4

         3


 8       2


                                                                           l0.0 [m]
         1
                                                                                   qV [l/s]
 9           200       300          500      700          1000     1500    2000 2500
                                                                                   qV [m3/h]
                     1000    1500     2000         3000          5000     7000




10     l0.0 [m]
       20
                   RCW-630 T=+10K
                                                                                       75°
       15
                                                                                       60°
       10
11       7
                                                                                       45°
         6
         5
         4

12       3

         2



13       1
                                                                           l0.0 [m]
                                                                                   qV [l/s]
             200       300          500      700          1000     1500    2000 2500
                                                                                   qV [m3/h]
                     1000    1500     2000         3000          5000     7000
14
        l0.0 [m]   RCW-630 T=+15K
        20

        15
15                                                                                     75°

        10                                                                             60°

         7
         6                                                                             45°
16       5
         4

         3


17       2


                                                                           l0.0 [m]
         1
                                                                                   qV [l/s]
18           200       300          500      700          1000     1500    2000 2500
                                                                                   qV [m3/h]
                     1000    1500     2000         3000          5000     7000




 330                                                             We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Swirl diffuser                                                                                                           RCWB
                                                                         Dimensions
                                                                                                                 B                               1

                                                                                                                                                 2




                                                                                                                                     H/2
                                                                                                                                                 3




                                                                                                                                Ød
                                                                             H
                                                                                                                                                 4

                                                                                                                                                 5
                                                                                                      ØA


Description                                                                                                                                      6

RCWB is a rotating diffuser (RCW) with integral box, particu-                  Ød               ØA          H             B    Weight *
larly suitable for premises with a high ceiling. The diffuser is               Size             mm         mm            mm      kg              7
equipped with adjustable blades, so the supply air pattern                      250             360        415           250     5.70
can be changed from vertical to horizontal. The blade set-                      315             460        480           300     8.20
tings can be adjusted manually, or the function can be auto-                    400             560        570           350     11.8            8
mated using various types of motor. RCWB with manual                            500             670        670           412     17.2
blade adjustment is supplied as standard with a blade set-                      630             870        800           500     25.7
ting of 30°. The motorized models are supplied as standard
with a blade setting from 30° to 75°. In the motorized ver-              * Motorized models weigh approx. 1 kg more than the
                                                                                                                                                 9
sions, RCWB can be supplied with an electric on/off motor,               weight stated in the table above.
a modulating motor or a thermal actuator, where the supply
air pattern is changed in step with the supply air tempera-              Motor type                                                         10
ture.

   •   Suitable for both cooling and heating                                     RCWB-1 Ød                       Motor
   •   Horizontal and vertical dispersal patterns
                                                                                                                                            11
                                                                                      315-400              NM24A-MF-F
   •   High induction
   •   Can be supplied with an electric motor                                         500-630              LH24A-MF60
   •   Can be supplied with a thermal actuator                                                                                              12
                                                                                 RCWB-2 Ød                       Motor
Maintenance                                                                           250-400                NM24A-F
The visible parts of the diffuser can be wiped with a damp                            500-630                LH24A60
                                                                                                                                            13
cloth. For other maintenance, see installation instructions.

                                                                                                                                            14
Ordering example
Product                        RCWB      a    bbb      c      A
Type                                                                                                                                        15
Manual                        0
Motorized - modulating        1
                                                                          Materials and finish
                                                                                                                                            16
Motorized- on/off             2
                                                                          Material:             Aluminium & steel
Thermal actuator              3
                                                                          Standard finish:      Powder-coated
                                                                          Standard colour:      RAL 9010 Gloss 30                           17
Galvanised box                0                                           Box:                  Hot-galvanised steel
Box RAL 9010                  1
Size                                                                      Available in other colours. Please contact Lindab's sales         18
Version                                                                   department for further information.


                                          We reserve the right to make changes without prior notice                                        331
         co mfo rt | cei ling di ffusers - vi sible




         Swirl diffuser                                                                                                                             RCWB
         Technical data
 1
         RCWB with electric modulating motor                                                       Capacity
                                                                                                   Volume flow q [l/s] and [m3/h], total pressure drop pt [Pa],
                                                                                                   throw l0.2 [m] and sound level LWA [dB(A)] can be seen in the
 2                        α°                                                                       diagrams.
                     75
                     70                                                                            Throw l0.2 / turning point l0.0
 3                   65                                                                            Throw l0.2[m] can be seen in the diagrams for isothermal air
                     60                                                                            at a speed of 0.2 m/s. Turning point l0.0 [m] can be seen in
       Blade angle




                     55                                                                            the diagrams for heated air, +5 K, +10 K and +15 K respec-
 4                                                                                                 tively.
                     50
                     45
                                                                                                   Frequency-related sound effect level
 5                   40
                                                                                                   The sound effect level in the frequency band is defined as
                     35                                                                            LWA+Kok. Kok values are specified in charts beneath the dia-
                     30                                                                            grams on the following pages.
 6                        2         4               6              8             10
                                             Control voltage (V)

                                                                                                   Quick selection
 7       RCWB with thermal actuator
                                                                                                                                                              l0.2    l0.0
                                                                                                                                qv       qv        Pt      isoterm   +10k
                                                                                                                               [l/s]   [m³/h]     [Pa]
 8                        α°                                                                                                                                 [m]      [m]
                     75                                                                                Size      Angle                          LWA = 40
                     70                                                                                250         30°         115      415        57         8
                                                                                                       250         75°         115      415        28                 5
 9                   65
                                                                                                       315         30°         187      672        53         5
                     60                                                                                315         75°         187      672        29                 5
       Blade angle




                     55                                                                                400         30°         290      1043       49         4
10                   50
                                                                                                       400         75°         290      1043       27                 5
                                                                                                       500         30°         403      1451       47         4
                     45
                                                                                                       500         75°         403      1451       22                 4
                     40                                                                                630         30°         605      2178       39         5
11                   35                                                                                630         75°         605      2178       19                 5

                     30                                                                                                                         LWA = 50
                                                                                                       250         30°         160      575       108        11
                          16   18       20        22        24         26        28
12                                           Temperature (C°)                                          250         75°         160      575        54                 6
                                                                                                       315         30°         257      924       101         6
                                                                                                       315         75°         257      924        54                 7

13                                                                                                     400         30°         397      1428       91         6
                                                                                                       400         75°         397      1428       50                 7
                                                                                                       500         30°         565      2034       91         6
                                                                                                       500         75°         565      2034       43                 6
14                                                                                                     630         30°         861      3098       80         7
                                                                                                       630         75°         861      3098       39                 7
                                                                                                                                                LWA = 60
15                                                                                                     250         30°         221      796       208        15
                                                                                                       250         75°         221      796       103                 8
                                                                                                       315         30°         353      1271      190         8
                                                                                                       315         75°         353      1271      103                 9
16                                                                                                     400         30°         543      1954      170         8
                                                                                                       400         75°         543      1954       93                 9
                                                                                                       500         30°         792      2851      180         8
17                                                                                                     500         75°         792      2851       85                 8
                                                                                                       630         30°         1224     4407      161         9
                                                                                                       630         75°         1224     4407       78                 10

18

 332                                                               We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Swirl diffuser                                                                                                                                                                                                       RCWB
Technical data
                                                                                                                                                                                                                                                                   1
  pt [Pa] RCWB-250a                                                                         30°               45°                 pt [Pa] RCWB-500a                                                                       30°                45°
150                                                                                                                             150
                                                                                                                    60° 75°                                                                                                                        60° 75°
100

 70
                                                                                                        50                      100

                                                                                                                                 70
                                                                                                                                                                                                                                                                   2
                                                                                            45                                                                                                                             50
 50                                                                             40                                               50                                                                             45

                                                                   35                                                                                                                               40
 30
                                                            30
                                                                                                                                 30
                                                                                                                                                                                           35
                                                                                                                                                                                                                                                                   3
 20                                                                                                                              20
                                                25                                                                                                                            30
 15                                                                                                                              15
                                    20                                                                                                                              25
 10                                                                                                                              10
                                                                                                                                                        20                                                                                                         4
  7                                                                                                                               7
                                                                                                 LWA dB(A)                                                                                                                       LWA dB(A)
  5                                                                                                                               5
                                                                                                                    qV [l/s]                                                                                                                    qV [l/s]
      50          60         70      80        90 100                         150                200
                                                                                                                    qV [m3/h]
                                                                                                                                      200                      300                 400           500          600        700                 1000
                                                                                                                                                                                                                                                qV [m3/h]          5
            200                          300               400          500                     700                                                      1000                       1500                2000         2500         3000



            Hz         63          125         250         500      1K              2K          4K          8K                              Hz          63      125           250        500           1K           2K          4K       8K                        6
            Kok          5           0          -5          -4      -3              -9       -17            -26                             Kok         8           2         -3           -2           -4      -11            -21       -30


  pt [Pa] RCWB-315a
150
                                                                                                 30°          45°                 pt [Pa] RCWB-630a
                                                                                                                                150
                                                                                                                                                                                                                                 30°         45°                   7
                                                                                                                    60° 75°
                                                                                                                                                                                                                                                   60° 75°
100                                                                                                                             100
                                                                                                       50
 70                                                                                                                              70

 50
                                                                                           45
                                                                                                                                 50                                                                                        50                                      8
                                                                               40
                                                                                                                                                                                                                45
 30                                                               35                                                             30
                                                                                                                                                                                                        40
 20                                                        30                                                                    20                                                         35                                                                     9
 15                                             25                                                                               15                                                 30

 10                                 20                                                                                           10                                      25

  7
                                                                                                 LWA dB(A)
                                                                                                                                  7                            20
                                                                                                                                                                                                                                 LWA dB(A)                    10
  5                                                                                                                               5
                                                                                                                    qV [l/s]                                                                                                                   qV [l/s]
      70     80     90 100                           150          200                        300                 400                           300              400           500        600      700                1000                   1500
                                                                                                                    qV [m3/h]                                                                                                                  qV [m3/h]
              300                  400          500               700                     1000                                              1000                1500                2000         2500        3000              4000      5000
                                                                                                                                                                                                                                                              11
            Hz         63          125         250         500      1K              2K          4K          8K                              Hz          63      125           250        500           1K           2K          4K       8K
            Kok          7          -1          -4          -3      -3          -10          -19            -27                             Kok         7           -1        -3           -1           -4      -13            -24       -33
                                                                                                                                                                                                                                                              12
  pt [Pa] RCWB-400a                                                                                30°
                                                                                                                                Throw l0.2 horizontal
150
                                                                                                                    45°
                                                                                                                    60° 75°     Horizontal throw l0.2 is specified for free suspension. If the                                                                13
                                                                                                                                diffuser is installed < 300 mm from the ceiling, the value
100

                                                                                                                                must be multiplied by 1.4.
 70                                                                                               50

 50                                                                                  45

                                                                    40
                                                                                                                                             RCWB 30° isoterm
                                                                                                                                                                                                                                                              14
 30                                                                                                                              l0.2 [m]                                                                     250                      315
                                                            35                                                                   20                                                                                                                400
 20                                            30                                                                                15
 15                                                                                                                                                                                                                                                500


 10
                                   25
                                                                                                                                 10
                                                                                                                                                                                                                                                   630        15
                    20
                                                                                                                                  7
  7
                                                                                                 LWA dB(A)                        6
  5                                                                                                                               5

      150                    200                            300                400                500            600
                                                                                                                    qV [l/s]
                                                                                                                                  4                                                                                                                           16
                                                                                                                    qV [m3/h]     3
                         700                         1000                       1500                     2000
                                                                                                                                  2

                                                                                                                                                                                                                                                              17
            Hz         63          125         250         500      1K              2K          4K          8K                                                                                                                        l0.2 [m]
                                                                                                                                  1
            Kok          8           0          -5          -2      -3          -11          -20            -28                                                                                                             qV [l/s]
                                                                                                                                      10      15 20          30 40 50         70     100        150 200     500 700 1000 1500
                                                                                                                                                                                                             300

                                                                                                                                        40 50      70    100     150            300         500 700 1000 1500     3000 5000
                                                                                                                                                                                                                            qV [m3/h]
                                                                                                                                                                                                                                                              18

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       Swirl diffuser                                                                                                                                    RCWB

 1     l0.2 [m]
       20
                  RCWB-250 - isoterm                                   75° 60°                  l0.2 [m]
                                                                                                20
                                                                                                           RCWB-315 - isoterm                                  75°   60°

                                                                                   45°                                                                                              45°
       15                                                                                       15

       10                                                                                       10
 2      7                                                                                        7
        6                                                                                        6
        5                                                                                        5
        4                                                                                        4

 3      3                                                                                        3

        2                                                                                        2



 4      1
                                                                        l0.2 [m]
                                                                                                 1
                                                                                                                                                                        l0.2 [m]
                                                                                    qV [l/s]                                                                                      qV [l/s]
            30      40    50   60 70 80    100    150   200      300             500                 30     40     50   60 70 80    100    150   200     300            500     700
                                                                                    qV [m3/h]                                                                                     qV [m3/h]
                    150    200       300         500    700    1000       1500                               150    200       300         500    700   1000      1500    2000
 5
       l0.0 [m]   RCWB-250 +5K                                                                  l0.0 [m]   RCWB-315 T=+5K                                                     75°
       20                                                                                       20
                                                                                   75°                                                                                              60°
                                                                                   60°
 6     15                                                                                       15

       10                                                                          45°          10                                                                                  45°

        7                                                                                        7
        6                                                                                        6
 7      5                                                                                        5
        4                                                                                        4

        3                                                                                        3


 8      2                                                                                        2


                                                                        l0.0 [m]                                                                                        l0.0 [m]
        1                                                                                        1
                                                                                    qV [l/s]                                                                                      qV [l/s]
 9          30      40    50   60 70 80    100    150   200      300             500
                                                                                    qV [m3/h]
                                                                                                     30     40     50   60 70 80    100    150   200     300            500     700
                                                                                                                                                                                  qV [m3/h]
                    150    200       300         500    700    1000       1500                               150    200       300         500    700   1000      1500    2000



                  RCWB-250 +10K
10     l0.0 [m]
       20
                                                                                   75°
                                                                                                l0.0 [m]
                                                                                                20
                                                                                                           RCWB-315 T=+10K

                                                                                                                                                                                    75°
       15                                                                          60°          15
                                                                                                                                                                                    60°
       10                                                                                       10
11      7
                                                                                   45°
                                                                                                 7
                                                                                                                                                                                    45°
        6                                                                                        6
        5                                                                                        5
        4                                                                                        4

12      3                                                                                        3

        2                                                                                        2



13      1
                                                                        l0.0 [m]
                                                                                                 1
                                                                                                                                                                        l0.0 [m]
                                                                                    qV [l/s]                                                                                      qV [l/s]
            30      40    50   60 70 80    100    150   200      300             500                 30     40     50   60 70 80    100    150   200     300            500     700
                                                                                    qV [m3/h]                                                                                     qV [m3/h]
                    150    200       300         500    700    1000       1500                               150    200       300         500    700   1000      1500    2000
14
       l0.0 [m]   RCWB-250 +15K                                                                 l0.0 [m]   RCWB-315 T=+15K
       20                                                                                       20

       15                                                                                       15
15                                                                                 75°
                                                                                                                                                                                    75°

       10                                                                                       10                                                                                  60°
                                                                                   60°
        7                                                                          45°           7
        6                                                                                        6                                                                                  45°
16      5                                                                                        5
        4                                                                                        4

        3                                                                                        3


17      2                                                                                        2


                                                                        l0.0 [m]                                                                                        l0.0 [m]
        1                                                                                        1
                                                                                    qV [l/s]                                                                                      qV [l/s]
18          30      40    50   60 70 80    100    150   200      300             500
                                                                                    qV [m3/h]
                                                                                                     30     40     50   60 70 80    100    150   200     300            500     700
                                                                                                                                                                                  qV [m3/h]
                    150    200       300         500    700    1000       1500                               150    200       300         500    700   1000      1500    2000




 334                                                          We reserve the right to make changes without prior notice
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Swirl diffuser                                                                                                                                 RCWB

l0.2 [m]
20
           RCWB-400 - isoterm                             75°        60°              l0.2 [m]
                                                                                      20
                                                                                                 RCWB-500 - isoterm                                    75°        60°
                                                                                                                                                                                                1
15                                                                                    15                                                                                       45°
                                                                             45°
10                                                                                    10

 7                                                                                     7
                                                                                                                                                                                                2
 6                                                                                     6
 5                                                                                     5
 4                                                                                     4

 3                                                                                     3                                                                                                        3
 2                                                                                     2



 1
                                                                l0.2 [m]
                                                                                       1
                                                                                                                                                                  0.2   [m]                     4
                                                                          qV [l/s]                                                                                           qV [l/s]
     100         150    200       300          500        700          1000                100       150    200         300          500      700          1000           1500
                                                                          qV [m3/h]                                                                                          qV [m3/h]
               500      700     1000    1500     2000           3000                                500     700       1000    1500     2000         3000                5000
                                                                                                                                                                                                5
l0.0 [m]   RCWB-400 T=+5K                                                  75°        l0.0 [m]   RCWB-500 T=+5K                                                          75°
20                                                                                    20
                                                                                                                                                                               60°
                                                                             60°
15                                                                                    15
                                                                                                                                                                               45°
                                                                                                                                                                                                6
10                                                                           45°      10

 7                                                                                     7
 6                                                                                     6
 5                                                                                     5                                                                                                        7
 4                                                                                     4

 3                                                                                     3

 2                                                                                     2
                                                                                                                                                                                                8
                                                                l0.0 [m]                                                                                          l0.0 [m]
 1                                                                                     1
                                                                          qV [l/s]                                                                                           qV [l/s]
     100         150    200       300          500        700          1000
                                                                          qV [m3/h]
                                                                                           100       150    200         300          500      700          1000           1500
                                                                                                                                                                             qV [m3/h]
                                                                                                                                                                                                9
               500      700     1000    1500     2000    2500 3000                                  500     700       1000    1500     2000         3000                5000



l0.0 [m]
20
           RCWB-400 T=+10K                                                            l0.0 [m]
                                                                                      20
                                                                                                 RCWB-500 T=+10K
                                                                                                                                                                                           10
15                                                                           75°      15
                                                                                                                                                                               75°
                                                                             60°
                                                                                                                                                                               60°
10                                                                                    10

 7                                                                           45°       7                                                                                       45°         11
 6                                                                                     6
 5                                                                                     5
 4                                                                                     4

 3                                                                                     3                                                                                                   12
 2                                                                                     2



 1
                                                                l0.0 [m]
                                                                                       1
                                                                                                                                                                  l0.0 [m]                 13
                                                                          qV [l/s]                                                                                           qV [l/s]
     100         150    200       300          500        700          1000                100       150    200         300          500      700          1000           1500
                                                                          qV [m3/h]                                                                                          qV [m3/h]
               500      700     1000    1500     2000    2500 3000                                  500     700       1000    1500     2000         3000                5000
                                                                                                                                                                                           14
l0.0 [m]   RCWB-400 T=+15K                                                            l0.0 [m]   RCWB-500 T=+15K
20                                                                                    20

15                                                                                    15
                                                                            75°
                                                                                                                                                                               75°
                                                                                                                                                                                           15
10                                                                          60°       10
                                                                                                                                                                               60°
 7                                                                                     7
 6                                                                          45°        6                                                                                       45°
 5
 4
                                                                                       5                                                                                                   16
                                                                                       4

 3                                                                                     3

 2                                                                                     2
                                                                                                                                                                                           17
                                                                l0.0 [m]                                                                                          l0.0 [m]
 1                                                                                     1
                                                                          qV [l/s]                                                                                            qV [l/s]
     100         150    200       300          500        700          1000
                                                                          qV [m3/h]
                                                                                           100        150   200         300          500      700          1000            1500
                                                                                                                                                                              qV [m3/h]
                                                                                                                                                                                           18
               500      700     1000    1500     2000           3000                                500     700       1000    1500     2000         3000                 5000




                                                     We reserve the right to make changes without prior notice                                                                            335
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       Swirl diffuser                                                                                                           RCWB

 1     l0.2 [m]
       20
                   RCWB-630 - isoterm                   75°         60°                 45°

       15

       10
 2       7
         6
         5
         4

 3       3

         2



 4       1
                                                                                 l0.2 [m]
                                                                                         qV [l/s]
             200        300            500      700          1000     1500       2000 2500
                                                                                         qV [m3/h]
                      1000     1500      2000         3000          5000        7000
 5
       l0.0 [m]    RCWB-630 T=+5K                                         75°          60°
       20


 6     15
                                                                                             45°
       10

         7
         6
 7       5
         4

         3


 8       2


                                                                                 l0.0 [m]
         1
                                                                                         qV [l/s]
 9           200        300            500      700          1000     1500       2000 2500
                                                                                         qV [m3/h]
                      1000     1500      2000         3000          5000        7000




10     l0.0 [m]
       20
                   RCWB-630 T=+10K
                                                                                             75°
       15
                                                                                             60°
       10
11       7
                                                                                             45°
         6
         5
         4

12       3

         2



13       1
                                                                                 l0.0 [m]
                                                                                         qV [l/s]
             200        300            500      700          1000     1500       2000 2500
                                                                                         qV [m3/h]
                      1000     1500      2000         3000          5000        7000
14
        l0.0 [m]   RCWB-630 T=+15K
        20

        15
15                                                                                            75°

        10                                                                                    60°

         7
         6                                                                                    45°
16       5
         4

         3


17       2


                                                                                 l0.0 [m]
         1
                                                                                         qV [l/s]
18           200        300            500      700          1000     1500       2000 2500
                                                                                         qV [m3/h]
                      1000      1500     2000         3000          5000        7000




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Perforated diffuser                                                                                                                 HLD
                                                                          Dimensions
                                                                                                                        Ød                        1

                                                                                                                                                  2


                                                                                     82
                                                                                                                                                  3

                                                                                                                                                  4




                                                                                                                                     1000
                                                                                            650
                                                                                                                                                  5


Description                                                                                                                                       6
HLD is a circular displacement diffuser adapted for indus-
trial requirements. HLD is equipped with a damper function,

                                                                                            10
                                                                                                                                                  7

                                                                                                  173
which makes it possible to vary the supply air pattern
between horizontal or vertical, depending on whether heat-
ing or cooling is required. The switch can be made manu-
ally, or it can be automated using several types of motor.                                                                                        8
                                                                                                         1 7 .5
The external dimensions of the diffuser are adapted to the
connection, making it easy to integrate into an ordinary duct
system. HLD can be suspended from or installed on a wall
or column using the installation bracket, which ensures                                                                                           9
great flexibility no matter how premises are used.
                                                                                                                   A
   •   Suitable for both cooling and heating                                                                                                 10
   •   Horizontal and vertical dispersal patterns
   •   High capacity                                                                              Ød               A     Weight *
   •   Flexible positioning                                                                       Size            mm       kg
   •   Can be supplied with an electric motor                                                     250             192        11.5            11
   •   Can be supplied with a thermal actuator                                                    315             225        13.7
                                                                                                  400             270        17,0

Maintenance                                                                                       500             322        21,0            12
                                                                                                  630             390        27,0
The visible parts of the diffuser can be wiped with a damp
cloth. For other maintenance, see installation instructions.              *Motorized models weigh approx. 1 kg more than the weight
                                                                          stated in the table above.                                         13

                                                                          Motor type
Ordering example                                                                                                                             14
Product                                  HLD        a      bbb
Type                                                                                         Type                         Motor
                                                                                           HLD - 1                      NM24A-MF-F           15
Manual                               0                                                     HLD - 2                       NM24A-F
Motorized - modulating               1
Motorized- on/off                    2                                                                                                       16
Automatic thermal actuator           3
Size
                                                                          Materials and finish
                                                                          Material:        Galvanised steel
                                                                          Standard finish: Galvanised                                        17
Accessories
Product                                  HLZ        a                     Can be supplied in both standard finish and industrial finish.
Installation brackets (1set)                                              HLD is also available in stainless steel. Please contact           18
Size                                                                      Lindab’s sales department for further information.


                                          We reserve the right to make changes without prior notice                                         337
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       Perforated diffuser                                                                                                         HLD
       Technical data
 1
       Capacity                                                                    Supply air
       Volume flow q [l/s] and [m3/h], total pressure drop pt [Pa],                With its special design, HLD is suitable for the supply of
       throw l0.2 [m] and sound level LWA [dB(A)] can be seen in the               large volumes of air with short throws in a limited area. This
 2     diagrams.                                                                   concentrates the supplied air in a small area within a larger
                                                                                   space, after which the air distributes itself around the
       Throw l0.2 / turning point l0.0                                             premises. Normally, a horizontal dispersal pattern is recom-
 3                                                                                 mended in cooling situations and a vertical dispersal pattern
       Throw l0.2[m] can be seen in the diagrams for isothermal air                in heating situations.
       at a speed of 0.2 m/s. Turning point l0.0 [m] can be seen in
       the diagrams for heated air, +5 K +10 K respectively.
 4                                                                                 Planning
                                                                                   HLD with cooled air works in much the same way as dis-
       Frequency-related sound effect level                                        placement ventilation. Displacement ventilation has a higher
       The sound effect level in the frequency band is defined as                  temperature efficiency than mixing ventilation, and thus
 5     LWA+Kok. Kok values are specified in charts beneath the                     more power is discharged with the same volume of air and
       diagrams on the following pages.                                            the same cooling temperature. For the calculation of dis-
                                                                                   charged power in a cooling situation, use the calculation
 6                                                                                 method for displacement ventilation. For HLD with heated
       Quick selection                                                             air, power is calculated as for mixing ventilation.
                                                            l0.2     l0.0          Horizontal supply air - cooling
 7                              qv       qv       Pt       isoterm   +5K
                               [l/s]   [m³/h]    [Pa]        [m]     [m]
         Size                                   LWA = 50
         250      Horizontal   259      934       44         2
 8       250       Vertical    259      934       44                  3
         315      Horizontal   394      1420      37         2
         315       Vertical    394     1420       37                  3
 9       400      Horizontal   586      2111      32         2
         400       Vertical    586     2111       32                  2
         500      Horizontal   938      3377      32         3
10       500       Vertical    938     3377       32                  2
         630      Horizontal   1500     5401      32         4
         630       Vertical    1500    5401       32                  2
                                                LWA = 55
11       250      Horizontal   305      1099      62         2
         250       Vertical    305     1099       62                  3
         315      Horizontal   457      1647      50         2                     Vertical supply air - heating
12       315       Vertical    457     1647       50                  3
         400      Horizontal   680      2447      44         3
         400       Vertical    680     2447       44                  3
         500      Horizontal   1087     3915      42         3
13       500       Vertical    1087    3915       42                  3
         630      Horizontal   1739     6262      42         4
         630       Vertical    1739    6262       42                  2
14                                              LWA = 60
         250      Horizontal   359      1294      85         2
         250       Vertical    359     1294       85                  4
15       315      Horizontal   531      1910      68         3
         315       Vertical    531     1910       68                  3
         400      Horizontal   788      2838      58         3
         400       Vertical    788     2838       58                  3
16       500      Horizontal   1261     4539      57         4
         500       Vertical    1261    4539       57                  3
         630      Horizontal   2017     7260      57         5
17       630       Vertical    2017    7260       57                  3




18

 338                                               We reserve the right to make changes without prior notice
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Perforated diffuser                                                                                                                                                                                 HLD
Technical data
                                                                                                                                                                                                                               1
Sound power level
The diagram for sound effect level and pressure applies to
both horizontal and vertical dispersal.
                                                                                                                                                                                                                               2
  pt [Pa] HLD                              250           315             400            500            630
200
150                                                                                                                                                                                                                            3
100                                                                                               70
                                                                                             65
 70

 50
                                                                                   55
                                                                                        60
                                                                                                                                                                                                                               4
 30                                                                           50
                                                                         45
 20
 15
                                                                    40                                                                                                                                                         5
                                                               35
 10                                                      30
                                                                                        LWA dB(A)
  7
      100    150   200     300       400 500      700     1000           1500 2000            3000
                                                                                                             qV [l/s]
                                                                                                                                                                                                                               6
                                                                                                             qV [m3/h]
        400 500    700    1000        1500 2000     3000            5000       7000 10000


                                                                                                                                                                                                                               7
 Size       Hz       63      125          250           500          1K             2K             4K            8K
 250        Kok      4           -3        -3           1            -6             -16            -29          -37
 315        Kok      12          1          0           1            -7             -16            -27          -36
                                                                                                                                                                                                                               8
 400        Kok      5           -3         2           1            -8             -17            -29          -41
 500        Kok      5           -3         2           1            -8             -17            -29          -41
 630        Kok      5           -3         2           1            -8             -17            -29          -41
                                                                                                                                                                                                                               9

Throw l0.2 / Turning point l0.0                                                                                          l0.0 [m]
                                                                                                                         10
                                                                                                                                    HLD +5K                                  250          315      400      500           10
These diagrams apply for installation heights > 1 m                                                                       8
                                                                                                                          7
                                                                                                                          6                                                                                     630

                                                                                                                          5                                                                                               11
                                                                                                                          4

                                                                                                                          3
                                                                                                                                                                                                                          12
                                                                                                                          2




                                                                                                                                                                                                     l0.0 [m]             13
                                                                                                                          1
                                                                                                                                                                                                    qV [l/s]
                                                                                                                              100     150 200      300          500 700 1000 1500 2000 3000      5000
                                                                                                                                                                                                    qV [m3/h]
                                                                                                                                     500    700   1000           2000 3000   5000 7000 10000 15000
                                                                                                                                                                                                                          14
                                                                                                                         l0.0 [m]   HLD +10K                                   250         315      400
                                                                                                                         10
                                                                                                                                                                                                                500
                                                                                                                          8
                                                                                                                          7                                                                                               15
                                                                                                                          6
                                                                                                                                                                                                                630
                                                                                                                          5

                                                                                                                          4

                                                                                                                          3
                                                                                                                                                                                                                          16
                                                                                                                          2

                                                                                                                                                                                                                          17
                                                                                                                                                                                                     l0.0 [m]
                                                                                                                          1
                                                                                                                                                                                                             qV [l/s]
                                                                                                                              150 200       300      500        700   1000    1500 2000     3000     5000 7000
                                                                                                                                                                                                             qV [m3/h]
                                                                                                                                                                                                                          18
                                                                                                                                    700    1000          2000     3000       5000 7000 10000          20000




                                                                           We reserve the right to make changes without prior notice                                                                                     339
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       Perforated diffuser                                                                                                                                                                       HLD
       Technical data                                                                                     Nearzone, Horizontal
 1     All diagrams apply for suspended installation.
                                                                                                          a0.2 [m]   HLD-315
                                                                                                           8
       Near zones                                                                                                                                                                                              -9K (0.1m)
                                                                                                           7                                                                                                   -6K (0.1m)
 2     For cooling and horizontal supply air, HLD will function as a
       displacement diffuser positioned high up.                                                           6
                                                                                                                                                                                                              -3K (0.1m)
       The near zone is shown for two different heights, one “inner”                                       5

       near zone a0.2 (1.8 m) defined as the distance from the dif-                                                                                                                                            -3K (1.8m)
 3     fuser where the speed at a height of 1.8 m is 0.2 m/s, and an
                                                                                                           4
                                                                                                                                                                                                               -6K (1.8m)

       “outer” near zone a0.2 (0.1 m), which is the distance from the                                      3                                                                                                   -9K (1.8m)

       diffuser where the speed at a height of 0.1 m is 0.2 m/s.                                           2

 4                                                                                                         1
                                                                                                                                                                                                   a0.2 [m]
                                                                                                           0
                                                                                                                                                                                                               qV [l/s]
                                                                                                               300              400                  500             600                 700                800
 5                                                                                                                                  1500                     2000                       2500
                                                                                                                                                                                                               qV [m3/h]



                                                                                                          a0.2 [m]   HLD-400
                                                                                                          10
 6                             3m
                                                                                                           9
                                                                                                                                                                                                               -9K (0.1m)
                                                                                                           8                                                                                                   -6K (0.1m)
                                          1,8 m
                                                                                                           7
                                                                                                                                                                                                               -3K (0.1m)
 7                                                                                                         6

                                                                            0,1 m                          5
                                          a0,2(1,8 m)                                                      4
                                                                                                                                                                                                               -3K (1.8m)
                                                                                                                                                                                                               -6K (1.8m)
 8                                                          a0,2(0,1 m)
                                                                                                           3
                                                                                                                                                                                                               -9K (1.8m)
                                                                                                           2

                                                                                                           1
       For wall installation the following corrections apply:                                                                                                                                      a0.2 [m]

 9     a0.2 at right angles to wall = diagram value.
                                                                                                           0
                                                                                                               400            500             600            700           800             900
                                                                                                                                                                                                            qV [l/s]
                                                                                                                                                                                                         1000
       a0.2 along wall = diagram value × 3.                                                                                                                                                                 qV [m3/h]
                                                                                                                1500                  2000                 2500                  3000                 3500


10                                                                                                        a0.2 [m]
                                                                                                          10
                                                                                                                     HLD-500
                                                          3 x a0,2




                                                                                                           9                                                                                                   -9K (0.1m)
                                                                                                                                                                                                               -6K (0.1m)
                                                                                                           8
11                                                                                                         7                                                                                                   -3K (0.1m)

                                                                                                           6

                                                                                                           5

12                                                                                                         4                                                                                                   -3K (1.8m)

                                                                                                           3                                                                                                   -6K (1.8m)
                                                                                                                                                                                                               -9K (1.8m)
                                                   a0,2                                                    2

13                                                                                                         1
                                                                                                                                                                                                   a0.2 [m]
                                                                                                           0
                                                                                                                                                                                                               qV [l/s]
                                                                                                               500            600             700            800           900            1000              1100
        a0.2 [m]     HLD-250                                                                                                                                                                                   qV [m3/h]
14       8                                                                                   -9K (0.1m)
                                                                                             -6K (0.1m)
                                                                                                                       2000                  2500                 3000                  3500

         7
                                                                                                          a0.2 [m]   HLD-630                                                                   -9K (0.1m)
                                                                                             -3K (0.1m)   10
         6                                                                                                                                                                                                     -6K (0.1m)
                                                                                             -3K (1.8m)
15       5                                                                                   -6K (1.8m)
                                                                                                           9

                                                                                                           8                                                                                                   -3K (0.1m)

         4                                                                                   -9K (1.8m)    7

         3                                                                                                 6
16                                                                                                         5
         2
                                                                                                           4                                                                                                   -3K (1.8m)
         1                                                                                                                                                                                                     -6K (1.8m)
                                                                                                           3
                                                                                  a0.2 [m]                                                                                                                     -9K (1.8m)
17       0
                                                                                           qV [l/s]
                                                                                                           2
                   150   200        300     400             500             600         700                1
                                                                                           qV [m3/h]                                                                                               a0.2 [m]
              500        700    1000         1500                    2000              2500                0
                                                                                                                                                                                                             qV [l/s]
18                                                                                                             700        800           900           1000         1100      1200              1300      1400
                                                                                                                                                                                                             qV [m3/h]
                                                                                                                               3000                 3500            4000                4500            5000




 340                                                                  We reserve the right to make changes without prior notice
co mfo rt | cei ling di ffusers - vi sible




Perforated diffuser                                                                                                                                                          HLD
Technical data                                                                        Spread, Vertical
                                                                                                                                                                                                           1
Spread                                                                                b0.0 [m]
                                                                                       8
                                                                                                 HLD-315

For vertical supply air with warm air, the air from the diffuser
will turn at a vertical distance of l0.0 from the diffuser. The                        7

width of the air jet, b0.0, which can also be designated hori-                         6                                                                                                 +3K
                                                                                                                                                                                                           2
zontal spread, can be seen in the diagrams for spread.                                 5

                                                                                       4                                                                                                 +6K
                                                                                                                                                                                         +9K
                                                                                                                                                                                                           3
                                                                                       3

                                                                                       2

                                                                                       1                                                                                                                   4
                                                                                                                                                                              b0.0 [m]
                                                                                       0
                                                                                                                                                                                         qV [l/s]
                                                                                           300              400                  500             600                 700              800

                                                                                                                1500                     2000                       2500
                                                                                                                                                                                         qV [m3/h]
                                                                                                                                                                                                           5
                                                                                      b0.0 [m]   HLD-400
                                                                                       5
                                                                                                                                                                                                           6
                                                                                                                                                                                         +3K
                                                                                       4
                                                               l0,0




                                                                                       3
                                                                                                                                                                                         +6K
                                                                                                                                                                                                           7
                                                                                                                                                                                         +9K
                                                                                       2

                                                                                                                                                                                                           8
                                                                                       1
                                     b0,0
                                                                                                                                                                              b0.0 [m]

l0.0 values in 2 diagrams bottom right hand corner page 313.
                                                                                       0
                                                                                           400            500             600            700           800             900
                                                                                                                                                                                        qV [l/s]
                                                                                                                                                                                     1000
                                                                                                                                                                                                           9
                                                                                                                                                                                        qV [m3/h]
                                                                                            1500                  2000                 2500                  3000                 3500
For wall installation the following correction applies:
b0.0 wall = diagram value × 1.4.
                                                                                      b0.0 [m]
                                                                                       5
                                                                                                 HLD-500                                                                                              10

                                                                                       4
                                                                                                                                                                                                      11
                                                                                                                                                                                         +3K
                                                                                       3



                                                                                       2
                                                                                                                                                                                         +6K
                                                                                                                                                                                         +9K
                                                                                                                                                                                                      12
                                                                                       1

                                   1,4 x b0,0                                                                                                                                 b0.0 [m]                13
                                                                                       0
                                                                                                                                                                                        qV [l/s]
                                                                                           500            600             700            800           900            1000           1100
                                                                                                                                                                                        qV [m3/h]
                                                                                                   2000                  2500                 3000                  3500
                                                                                                                                                                                                      14
 b0.0 [m] HLD-250                                                                     b0.0 [m]   HLD-630
  8                                                                                    5
                                                                          +3K
  7

                                                                                       4
                                                                                                                                                                                                      15
  6

  5                                                                                                                                                                                      +3K
                                                                          +6K          3
  4                                                                       +9K                                                                                                                         16
                                                                                                                                                                                         +6K
  3                                                                                    2
                                                                                                                                                                                         +9K
  2

  1
                                                                                       1                                                                                                              17
                                                               b0.0 [m]                                                                                                       b0.0 [m]
  0                                                                                    0
                                                                          qV [l/s]                                                                                                       qV [l/s]
       150   200       300   400            500          600           700
                                                                          qV [m3/h]
                                                                                           700        800           900           1000         1100      1200              1300      1400
                                                                                                                                                                                         qV [m3/h]
                                                                                                                                                                                                      18
      500    700    1000      1500                2000                2500                                 3000                 3500            4000                4500            5000




                                                   We reserve the right to make changes without prior notice                                                                                         341
co mfo rt | Ceiling diffusers - v isible




Multi-cone diffuser                                                                                                                FKD
                                                                          Dimensions
                                                                                                                                                        1
                                                                          Vertical
                                                                                                           ØN
                                                                                                                                                        2




                                                                                  G




                                                                                                                                           F
                                                                                                                                                        3




                                                                                                                                       D
                                                                                                           ØA
                                                                                                                                                        4




                                                                                                                                       C
                                                                                                           ØB


                                                                                                                                                        5
                                                                          Horizontal


                                                                                                                                                        6
Description
                                                                                                                                                        7




                                                                                                                                           E
FKD is an adjustable circular multi-cone diffuser, which is
typically used for supply air. The diffuser can be switched
between horizontal and vertical supply air and is therefore
ideal for the supply of both heated and cooled air. Installing             FKD     ØA      ØB         C     D     E     F     G    ØN Weight            8
an FKD diffuser up to size 400 in a plenum box type MBB                    Size    mm     mm      mm       mm    mm    mm    mm    mm      kg
can help to achieve a stable airflow to the diffuser as well as             160    279     323        12    35   22    85    46    160     1.75
realise the potential for individual adjustment.                            200    375     428        10    51   26    101   55    200     2.70         9
                                                                            250    467     538        14    67   33    117   68    250     4.70
   • Suitable for both supply and exhaust air                               315    557     635        10    85   42    135   80    315     6.20
   • Vertical or horizontal supply air pattern                              355    648     743        18    96   46    146   86    355     8,00
                                                                            400    740     856        14   116   49    166   92    400     11.8
                                                                                                                                                   10
                                                                            450    832     970        14   135   66    185   110   450     14,0
Maintenance                                                                 500    924    1081        17   149   66    199   116   500     18,0
The multi-cone insert can be removed to enable cleaning of                  630    1103   1286        18   182   66    232   116   630     21,0    11
internal parts or to gain access to the duct or box. The visi-
ble parts of the diffuser can be wiped with a damp cloth.                 Number of cones:                 size 160–400: 2
                                                                                                           size 450-630: 3
                                                                                                           Ø A: ceiling grid opening               12

                                                                                                                                                   13

                                                                                                                                                   14

                                                                                                                                                   15

                                                                                                                                                   16
Order code
Product                           FKD - aaa
                                                                          Materials and finish
                                                                          Material:        Steel
Type
FKD                                                                       Standard finish: Powder-coated
                                                                                                                                                   17
Dimension                                                                 Standard colour: RAL 9010 white
Ø160-630
                                                                          The diffuser is available in other colours. Please contact               18
Example: FKD-200                                                          Lindab’s sales department for further information.


                                          We reserve the right to make changes without prior notice                                               343
       co mfo rt | Ceiling diffusers - v isible




       Multi-cone diffuser                                                                                                                  FKD
                                                                              Dimensions
 1
       Dispersal patterns
       FKD is supplied for vertical supply air as standard.
       The dispersal pattern can be altered to horizontal supply air
 2     by setting the inner part of the diffuser to its lowest position.


 3

 4                                                                            MBB
                                                                 E


 5                                                                                             10                       LxB


                                                                                                          10
 6
                                                                                        Ød1




                                                                                                                                          C

                                                                                                                                               H
                                                                                                                               Ød2


 7
                                                                                          F                        E

 8                                                                            FKD + MBB

                                                                                    FKD + MBB
 9                                                                                Duct          FKD            B       C      E      F       H*           L
                                                                                Ød1 mm Ød2 mm mm                       mm     mm     mm     mm        mm
                                                                                  100               160        260     160    205    50   195 - 235   300
                                                                                  125               160        310     185    246    50   220 - 260   366
10
                                                                                  125               200        310     185    246    50   236 - 276   366
                                                                                  160               160        380     219    322    50   255 - 295   459
                                                                                  160               200        380     219    322    50   270 - 310   459
11                                                                                160               250        380     219    322    50   286 - 326   459
                                                                                  200               200        460     260    394    50   361 - 401   565
                                                                                  200               250        460     260    394    50   327 - 367   565
12                                                                                200               315        460     260    394    50   345 - 385   565
                                                                                  250               250        560     310    485    70   377 - 417   698
                                                                                  250               315        560     310    485    70   395 - 435   698
                                                                                  250               400        560     310    485    70   426 - 466   698
13                                                                                315               315        560     375    645    70   460 - 500   858
                                                                                  315               400        560     375    645    70   491 - 531   858


14

15
                                                                              Product                                        MBB     - aaa - bbb      -       c
                                                                              Type
                                                                              MBB
16                                                                            Duct dimension
                                                                              Ø125-315
                                                                              Diffuser Dimension
17                                                                            Ø160-400
                                                                              Functional use
                                                                              S = Supply air
                                                                              E = Exhaust
18
                                                                              Example: FKD 200+MBB-160-200-S


 344                                           We reserve the right to make changes without prior notice
co mfo rt | Ceiling diffusers - v isible




Multi-cone diffuser                                                                                                                                                  FKD
Technical data                                                             Horizontal
                                                                                                                                                                                                       1
Capacity                                                                    l0.2 [m]    FKD                                                    160 200
                                                                                                                                                                 355 450
                                                                                                                                                           250 315 400 500
Air flow qv [l/s] and [m3/h], total pressure Δpt [Pa], throw l0.2           20

[m] and sound power level LWA [dB(A)] can be seen in the
                                                                                                                                                                                     630

diagrams.
                                                                            15
                                                                                                                                                                                                       2
                                                                            10

Throw l0.2                                                                   8
                                                                             7
                                                                                                                                                                                                       3
Throw l0.2 [m] can be seen in the diagram for isothermal air                 6
                                                                             5
at a speed of 0.2 m/s.
                                                                             4


Frequency-related sound effect level                                         3                                                                                                                         4
The sound effect level in the frequency band is defined as                   2
                                                                                                                                                                     l0.2 [m]

Lwok = LWA + Kok. Kok values are specified in charts beneath                                                                                                                         qV [l/s]

the diagrams on the following pages. Kok values for FKD
                                                                                  40     50 60 70 80    100         150    200          300    400 500          700           1000
                                                                                                                                                                                     qV [m3/h]         5
                                                                                  150     200     300           500        700    900          1500 2000             3000
without a box can be found in a separate supplement.


                                                                             pt [Pa] FKD                      160         200           250        315 355 400 450 500
                                                                                                                                                                                                       6
                                                                           100

                                                                            70
                                                                                                                                                                                     630
                                                                            50                                                                                                     50                  7
                                                                                                                                                                              45
                                                                            30
                                                                                                                                                                         40
                                                                            20
                                                                                                                                                                    35                                 8
                                                                            15
                                                                                                                                                               30
                                                                            10
                                                                                                                                                          25

                                                                             7                                                                       20
                                                                                                                                                                LWA dB(A)
                                                                                                                                                                                                       9
                                                                             5
                                                                                                                                                                                  qV [l/s]
                                                                                  50 60 70      100     150 200           300 400 500         700    1000       1500           2500
                                                                                                                                                                                  qV [m3/h]
                                                                                   200       300 400 500      700     1000       1500 2000        3000         5000 7000                          10

                                                                           Sound attenuation                                                                                                      11
                                                                           Sound attenuation of the diffuser ΔL from duct to room,
                                                                           including end reflection, see table below.
                                                                                                                                                                                                  12
                                                                                  FKD + MBB
                                                                                 Duct           FKD                              Centre frequency Hz
                                                                             Size Ø             Size Ø         63         125 250 500                    1K         2K         4K          8K     13
                                                                                 100             160           20         16        5         15         17         17         16          19
                                                                                 125             160           13         13        8         19         13         16         16          19
                                                                                 125             200           15         11        6         15         12         14         16          17
                                                                                 160             160           16         17       10         18         17         18         20          21
                                                                                                                                                                                                  14
                                                                                 160             200           15         14        7         19         15         16         18          19
                                                                                 160             250           17         16        4         16         15         16         16          18
                                                                                 200             200           13         10        6         15         18         15         19          17     15
                                                                                 200             250           13          9        4         12         17         13         17          16
                                                                                 200             315           13          8        3         8          16         14         16          15
                                                                                 250             250           14          8        8         15         17         17         17          18
                                                                                 250             315           13          6        5         13         15         15         16          17
                                                                                                                                                                                                  16
                                                                                 250             400           12          4        3         12         13         14         14          15
                                                                                 315             315            7          9        8         12         17         16         17          21
                                                                                 315             400            7          8        7         11         16         14         16          19     17
                                                                           Balancing
                                                                           Balancing data is contained in a separate brochure.                                                                    18

                                           We reserve the right to make changes without prior notice                                                                                             345
       co mfo rt | Ceiling diffusers - v isible




       Multi-cone diffuser                                                                                                                                                                                 FKD
       Technical data
 1
       Throw l0.2 / turning point l0.0                                                                                       Vertical supply air correction
       Throws l0.2[m] can be seen in the diagrams for isothermal air                                                         sound power level (LWA) and pressure loss
 2     at a speed of 0.2 m/s. Turning point l0.0 [m] can be seen in                                                          (Δpt)
       the diagrams for heated air, +5 K, +10 K respectively.                                                                On the following pages you can find diagrams for all sizes
                                                                                                                             FKD+MBB horizontal supply air. When Vertical supply air
 3                                                                                                                           values are wanted, use the correction factors in the table
                                                                                                                             below.

                                                                                                                                   FKD + MBB                                       Vertical Supply air
 4     Vertical                                                                                                                    Duct          FKD                               Correction factor
                                                                                                                               Size Ø           Size Ø                   LWA                                Δpt
         pt [Pa] FKD                             160    200          250     315        355 400 450 500                            100            160                         3                            x 1,2
       150
 5                                                                                                                                 125            160                         1                            x 1,2
       100
                                                                                                                       630         125            200                         1                            x 1,1
        70
                                                                                                                                   160            160                         5                            x 1,5
        50                                                                                                       50
                                                                                                                                   160            200                         3                            x 1,3
 6                                                                                                          45
        30
                                                                                                                                   160            250                         0                            x 1,1
                                                                                                       40
                                                                                                                                   200            200                         1                            x 1,3
        20                                                                                        35
                                                                                                                                   200            250                         5                            x 1,2
 7      15                                                                                   30
                                                                                                                                   200            315                         0                            x 1,1
        10                                                                              25
                                                                                                                                   250            250                         1                            x 1,3
                                                                                   20
         7
                                                                                                  LWA dB(A)                        250            315                         2                            x 1,3
 8       5
                                                                                                               qV [l/s]            250            400                         1                            x 1,1
             30    40 50     70      100     150 200           300          500     700      1000           2000                   315            315                         4                            x 1,4
                                                                                                               qV [m3/h]
                   150 200        300       500        700    1000           2000       3000           5000 7000                   315            400                         3                            x 1,2

 9

10

11

12

13

14
        l0.0 [m]   FKD +5K                                                 160 200      250 315                  355          l0.0 [m]   FKD +10K                                                160 200 250      315
        20                                                                                                                    20
                                                                                                                       400                                                                                              355
        15                                                                                                             450    15                                                                                        400
15                                                                                                                     500                                                                                              450
        10                                                                                                                    10                                                                                        500
                                                                                                                       630
                                                                                                                                                                                                                        630
         7                                                                                                                     7
         6                                                                                                                     6
16       5
         4
                                                                                                                               5
                                                                                                                               4

         3                                                                                                                     3


17       2                                                                                                                     2


                                                                                                       l0.0 [m]                                                                                            l0.0 [m]
         1                                                                                                                     1
                                                                                                      qV [l/s]                                                                                                     qV [l/s]

18           30     40    50 60 70         100         150     200         300         500   700   1000
                                                                                                      qV [m3/h]
                                                                                                                                    30    40    50 60 70         100    150       200    300      500      700  1000
                                                                                                                                                                                                                   qV [m3/h]
                    150    200       300           500        700     1000         1500 2000    3000                                      150    200       300         500    700       1000   1500 2000     3000




 346                                                                         We reserve the right to make changes without prior notice
co mfo rt | Ceiling diffusers - v isible




Multi-cone diffuser                                                                                                                                                                                                                         FKD
Technical data
FKD 160 + MBB Horizontal                                                                                                          FKD 200 + MBB Horizontal                                                                                                                 1
  pt [Pa] FKD-160+MBB-160-160-S                                                                                                     pt [Pa] FKD-200+MBB-200-200-S
250                                                                                                                               250
200                                                                                                                               200                                                                                                                                      2
150                                                                                                                               150

100                                                                                                                               100
                                                                                          50                                                                                                                                      50
 70
                                                                               45
                                                                                                                                   70
                                                                                                                                                                                                                     45
                                                                                                                                                                                                                                                                           3
 50                                                                40                                                              50
                                                                                                                                                                                                         40
                                                         35                                                                                                                               35
 30                                                                                                                                30
                                              30
                                                                                                                                                                              30
                                                                                                                                                                                                                                                                           4
 20                                                                                                                                20
                                    25
 15                                                                                                                                15                              25
                            20
                                                                                                       LWA dB(A)                                    20                                                                                 LWA dB(A)
 10
                                                                                                                       qV [l/s]
                                                                                                                                   10
                                                                                                                                                                                                                                                         qV [l/s]          5
      30              40           50          60        70        80              100             120    140       160                 50         60         70        80              100         120         140       160     180 200             240
                                                                                                                      qV [m3/h]                                                                                                                         qV [m3/h]
                       150               200                        300                   400             500                                200                            300               400              500                     700


                                                                                                                                                                                                                                                                           6
           Hz         63          125        250         500            1K          2K             4K          8K                            Hz         63          125           250         500         1K          2K              4K         8K
           Kok        11           7          0          -6             -4          -9             -22         -31                           Kok        13              5          -2          -5         -3          -12             -22        -28

                                                                                                                                                                                                                                                                           7
  pt [Pa] FKD-160+MBB-125-160-S                                                                                                     pt [Pa] FKD-200+MBB-160-200-S
250                                                                                                                               250
200                                                                                                                               200
150
                                                                                                         50
                                                                                                                                  150                                                                                                                                      8
100                                                                                                                               100                                                                                                            50
                                                                                              45
                                                                                                                                                                                                                                       45
 70                                                                                                                                70
                                                                                   40
 50
                                                                        35
                                                                                                                                   50
                                                                                                                                                                                                                           40
                                                                                                                                                                                                                                                                           9
                                                                                                                                                                                                               35
                                                             30
 30                                                                                                                                30                                                               30
                                                   25
 20
 15
                                        20
                                                                                                                                   20
                                                                                                                                   15
                                                                                                                                                                                        25
                                                                                                                                                                                                                                                                      10
                                                                                                                                                                             20
                                                                                                       LWA dB(A)                                                                                                                       LWA dB(A)
 10                                                                                                                                10
                                                                                                                     qV [l/s]                                                                                                                            qV [l/s]
      20         25          30               40             50         60         70     80             100      120                   30               40             50          60         70        80           100         120        140      160
                                                                                                                    qV [m3/h]                                                                                                                           qV [m3/h]     11
           80          100                     150                200                         300              400                                        150                 200                         300                   400          500



           Hz         63          125        250         500            1K          2K             4K          8K                            Hz         63          125           250         500         1K          2K              4K         8K                   12
           Kok        10           5          2          -5             -5          -9             -18         -25                           Kok        11              5          1           -5         -4          -11             -20        -25


  pt [Pa] FKD-160+MBB-100-160-S
250
                                                                                                                                    pt [Pa] FKD-200+MBB-125-200-S
                                                                                                                                  250
                                                                                                                                                                                                                                                                      13
200                                                                                                                               200
                                                                                                         50
150                                                                                                                               150
                                                                                                                                                                                                                                            50
                                                                                                  45
100                                                                                     40                                        100                                                                                            45                                   14
 70                                                                                                                                70                                                                                 40
                                                                              35
 50                                                                                                                                50                                                                         35
                                                                   30

 30                                                          25                                                                    30
                                                                                                                                                                                                30                                                                    15
                                                                                                                                                                                        25
                                                   20
 20                                                                                                                                20
                                                                                                                                                                              20
 15                                                                                                                                15

 10
                                                                                                       LWA dB(A)
                                                                                                                                   10
                                                                                                                                                                                                                                       LWA dB(A)                      16
                                                                                                                       qV [l/s]                                                                                                                          qV [l/s]
      10               15          20         25        30          40             50        60     70    80        100                 20         25         30              40          50         60        70     80          100        120      140
                                                                                                                      qV [m3/h]                                                                                                                          qV [m3/h]
           40     50        60     70    80        100                  150             200               300                                80         100                       150          200                        300           400           500
                                                                                                                                                                                                                                                                      17
           Hz         63          125        250         500            1K          2K             4K          8K                            Hz         63          125           250         500         1K          2K              4K         8K
           Kok         9          4           2          -3             -5          -9             -16         -22                           Kok        11              4          1           -4         -4          -10             -16        -23
                                                                                                                                                                                                                                                                      18

                                                                                        We reserve the right to make changes without prior notice                                                                                                                    347
       co mfo rt | Ceiling diffusers - v isible




       Multi-cone diffuser                                                                                                                                                                                                                     FKD
       Technical data
 1     FKD 250 + MBB Horizontal                                                                                                             FKD 315 + MBB Horizontal

         pt [Pa] FKD-250+MBB-250-250-S                                                                                                        pt [Pa] FKD-315+MBB-315-315-S
       250                                                                                                                                  250
 2     200                                                                                                                                  200
       150                                                                                                                                  150

       100                                                                                                                                  100

 3      70
                                                                                                                   50
                                                                                                                                             70
                                                                                                                                                                                                                                                        50
                                                                                                         45                                                                                                                                     45
        50                                                                                                                                   50
                                                                                              40                                                                                                                                          40
                                                                                                                                                                                                                                    35
        30                                                                         35                                                        30
 4                                                                      30
                                                                                                                                                                                                                          30
        20                                                                                                                                   20                                                                 25
        15                                                    25                                                                             15                                                           20
                                                  20                                                           LWA dB(A)                                                                                                                  LWA dB(A)
 5      10
                                                                                                                                qV [l/s]
                                                                                                                                             10
                                                                                                                                                                                                                                                            qV [l/s]
             50         60     70       80          100            120       140     160 180 200                240      280                      50     60       70    80 90 100                   150             200         250       300        350 400
                                                                                                                                qV [m3/h]                                                                                                                  qV [m3/h]
                  200                   300                   400            500                    700                  1000                          200              300            400        500           700                                 1250


 6
                  Hz          63        125         250             500            1K           2K            4K         8K                            Hz         63      125          250         500     1K             2K             4K           8K
                  Kok         12         5              -2          -4             -3           -13           -20        -26                           Kok        14          3         0          -2          -4         -14            -20         -26

 7
         pt [Pa] FKD-250+MBB-200-250-S                                                                                                        pt [Pa] FKD-315+MBB-250-315-S
       250                                                                                                                                  250
       200                                                                                                                                  200

 8     150                                                                                                                                  150

       100                                                                                                                                  100                                                                                                 50
                                                                                                                    50
        70                                                                                                45                                 70                                                                                          45

 9      50                                                                                      40                                           50                                                                                40
                                                                                     35
                                                                                                                                                                                                                    35
        30                                                               30                                                                  30
                                                                                                                                                                                                          30
                                                               25
10      20
        15
                                                    20
                                                                                                                                             20
                                                                                                                                             15
                                                                                                                                                                                                   25

                                                                                                               LWA dB(A)                                                                 20                                               LWA dB(A)
        10                                                                                                                                   10
                                                                                                                                 qV [l/s]                                                                                                                   qV [l/s]
             50          60        70        80               100         120           140        160    180 200             240                 50     60       70    80 90 100                   150             200         250       300        350 400
11                                                                                                                              qV [m3/h]                                                                                                                  qV [m3/h]
                  200                         300                   400              500                       700                                     200              300            400        500           700                                 1250




12                Hz          63        125         250             500            1K           2K            4K         8K                            Hz         63      125          250         500     1K             2K             4K           8K
                  Kok         11         5              -2          -3             -3           -12           -19        -24                           Kok        12          5         -1         -2          -4         -12            -19         -21



13       pt [Pa] FKD-250+MBB-160-250-S
       250
                                                                                                                                              pt [Pa] FKD-315+MBB-200-315-S
                                                                                                                                            250
       200                                                                                                                                  200
       150                                                                                                                                  150
                                                                                                                           50
                                                                                                                                                                                                                                                50
14     100
                                                                                                                    45
                                                                                                                                            100
                                                                                                                                                                                                                                     45
        70                                                                                               40                                  70
                                                                                                                                                                                                                          40
        50                                                                                                                                   50
                                                                                              35
                                                                                                                                                                                                               35
15      30
                                                                                30
                                                                                                                                             30                                                     30
                                                                    25
        20                                                                                                                                   20                                              25

        15                                               20                                                                                  15                                   20
16      10
                                                                                                               LWA dB(A)
                                                                                                                                             10
                                                                                                                                                                                                                                          LWA dB(A)
                                                                                                                          qV [l/s]                                                                                                                           qV [l/s]
             30               40         50             60         70    80               100        120       140 160 180                        50         60    70     80           100        120    140    160 180 200                   240     280
                                                                                                                         qV [m3/h]                                                                                                                           qV [m3/h]
                              150                 200                        300                400            500                                     200                 300               400         500                   700                   1000
17
                  Hz          63        125         250             500            1K           2K            4K         8K                            Hz         63      125          250         500     1K             2K             4K           8K
                  Kok         12         4               0          -3             -4           -12           -18        -24                           Kok        9           5         -1         -2          -5         -11            -18         -24
18

 348                                                                                       We reserve the right to make changes without prior notice
co mfo rt | Ceiling diffusers - v isible




Multi-cone diffuser                                                                                                                        FKD
Technical data
FKD 400 + MBB Horizontal                                                                                                                               1
  pt [Pa] FKD-400+MBB-315-400-S
250
200                                                                                                                                                    2
150

100
                                                                                              50
 70
                                                                                     45
                                                                                                                                                       3
 50                                                                           40

                                                                       35
 30
                                                                30                                                                                     4
 20
                                                      25
 15
                                                20
                                                                                          LWA dB(A)
 10
                                                                                                            qV [l/s]                                   5
      70    80 90                     150            200        250        300 350 400          500
                                                                                                            qV [m3/h]
            300          400        500          700                          1250 1500              2000


                                                                                                                                                       6
           Hz       63         125        250        500         1K           2K         4K          8K
           Kok      11          4           1         -1         -6          -12         -17        -24

                                                                                                                                                       7
  pt [Pa] FKD-400-MBB-250-400-S
250
200
150                                                                                                                                                    8
                                                                                                       50
100
                                                                                               45
 70

 50                                                                                  40                                                                9
                                                                              35
 30
                                                                      30
 20
 15
                                                           25                                                                                     10
                                                 20                                       LWA dB(A)
 10
                                                                                                           qV [l/s]
      50     60     70    80 90 100                    150             200         250    300       350 400
                                                                                                          qV [m3/h]                               11
           200            300             400        500              700                          1250



           Hz       63         125        250        500         1K           2K         4K          8K                                           12
           Kok      9           4           1         -1         -6          -12         -17        -25



                                                                                                                                                  13

                                                                                                                                                  14

                                                                                                                                                  15

                                                                                                                                                  16

                                                                                                                                                  17

                                                                                                                                                  18

                                                                               We reserve the right to make changes without prior notice         349

				
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