Curved walls with less than 10 vertical supports or butt glazed systems shall not be

							                                     UniTurn (formerly known as RDB)
                                     2-Wing Automatic Revolving Door
                                        12’, 14’, 16’, 18’ Diameters


Division 8 - Doors and Windows                                                    Section 08740 - Automatic Revolving Doors


PART 1 GENERAL

1.01    SECTION INCLUDES
 A.     Provide complete revolving door assemblies which have been fabricated, assembled and tested for proper
        operation at the factory. Include circular enclosure walls, ceiling, access hatch, ceiling lights, door wings,
        locks, glass, operator and drive assembly, emergency collapsing mechanism, all as required for installation
        shown and specified.

1.02    RELATED SECTIONS
 A.     Shop Drawings, Product, and Samples
 B.     Division 1600 - Electrical Supply (By Others)
 C.     Preparation of Opening (By Others)
 D.     Section 07920 - Sealants and Caulking
 E.     Final Cleaning

1.03    SUBMITTAL
 A.     Submit shop drawings and product data in accordance with Section [  ].
 B.     Indicate pertinent dimensioning, general construction, component connections and locations, anchorage
        methods and locations, hardware, and installation details.

1.04    SAMPLES
 A.     Submit samples in accordance with Section [       ].

1.05    DELIVERY, STORAGE AND HANDLING
 A.     Deliver materials to job site in manufacturer's packaging undamaged, complete with installation instructions.
 B.     Store off ground, under cover, protected from weather and construction activities.


PART 2 PRODUCTS

2.01    MANUFACTURED UNITS
 A.     Besam Automated Entrance System’s series UniTurn-2-12, UniTurn-2-14, UniTurn-2-16 or UniTurn-2-18,
        as manufactured by Besam Automated Entrance Systems, Inc. (92 North Main St., Windsor, NJ 08561),
        telephone (866-237-2687).
 B.     Factory assembled and tested 2-wing automatic revolving door. Must have (10) or more 2-wing automatic
        perimeter drive revolving door systems in successful operation for a minimum of 5 years. Curved wall
        enclosure must have (10) vertical supports for proper displacement of loading requirements. Curved walls
        with less than (10) vertical supports or butt-glazed systems shall not be acceptable.

2.02    MATERIALS
 A.     Circular Enclosure Walls and Canopy shall have a nominal diameter of 12'0" for UniTurn-12, 14’0” for
        UniTurn-14, 16’ for UniTurn-16, or 18’ for UniTurn-18, manufactured from slim-line straight and bent
        aluminum extrusion and with minimum thickness of .125 (metal-wrapped wood substrate or other metal-
        wrapped material substrates shall not be allowed). All internal structural support shall be I-beam
        construction. Segmented walls and canopy shall not be allowed.

 B.     Rotating Wings shall be slim-line aluminum extrusion, 2-wing configuration, finish as directed by architect.

 C.     Ceiling shall be white-coated laminate; center panels must be removable and serve as access hatches.

 D.     Ceiling Lights - provide ten (10) for UniTurn-12, twelve (12) for UniTurn-14, twelve for UniTurn-16 12volt,
        Quartz Halogen flush mounted ceiling light fixtures with activation control via the program selection switch
        or optional remote location. (120volt, AC light fixtures shall not be acceptable.)

 E.     Glass - shall be 1/4" clear tempered in rotating section and double acting swing doors, 7/16" clear bent
        laminated in curved walls and curved rotating doors to assure proper weather seal throughout enclosure.
        Flat glass and flat segmented glass shall not be accepted in the enclosure walls. Butt Glazing shall not be
       acceptable. (Lexan, Marguard, Plexiglass or any other types of plastic glazing material shall not be
       acceptable.)

2.03   OPERATION
 A.    Controls - must be microprocessor based "plug-in type" electronics ("hard wired" systems are not
       acceptable) with self-diagnostics and digital display status indicator. Digital display status indicator must be
       located on the interior left of the curved outside wall system. System must be capable of providing
       information indicating "go or no go” status, source or probable cause plus remedy.

 B.    Drive Assembly - must be perimeter-drive assembly with two 1/4 HP DC motors firmly attached to the
       internal rotating structural framing system. Motor drive wheels shall rotate on a fixed ring, and move ceiling
       and rotating wing assembly uniformly. Positive braking and stopping shall be performed by magnetic disc
       brake and wheel assemblies. (Doors with center shaft or centrally AC motor driven gear/chain/belt
       mechanisms will not be allowed).

 C.    Doors - rotating section shall include (1) pair of double acting swing doors across the center of the opening
       and when collapsed must provide a minimum clear exit width of 5'10" for UniTurn-12, 6'10" for UniTurn-14,
       7'10" for UniTurn-16, or 8’10-1/4” for UniTurn-18. Door wings shall be electro-mechanically locked in
       position and released upon fire alarm input or loss of power (see Safety). Auxiliary locking devices shall not
       be required for proper operation of door.

 D.    Power Requirements - to each unit shall require (1) 220 vac, 60HZ lines. (Doors requiring 208-230 volts 3
       phase shall not be considered equal.)

2.04   SAFETY
 A.    Provide a minimum of five (5) primary and/or secondary safety devices located vertically on the outer edge
       of the rotating wing, horizontally on the wing panels, vertically at the entrances. Devices shall include
       touchless, single and double field, Capacitance Field Detection (CFD), zone supervised Photocell Direct
       Reflection (PDR) and compressible safety switches. All devices shall be incorporated as follows:

       1. Vertical Safety Sensors

            - Two (2) no-touch PDR sensors covering the area immediately adjacent to the enclosure wall leading
           edges and must include zone-supervision. Activation of the PDR within the programmed safety zone
           shall cause the door to stop.

            - Two (2) no-touch CFD sensors placed on the leading edges of the rotating wings. Activation shall
           cause the door to stop.

            - Two (2) compressible safety switches on the leading edges of the rotating wings. Activation shall
           cause the door to stop.

       2. Horizontal Safety Sensors

            - Two (2) no-touch CFD sensors placed on the wing panels mid-rail and must include dual-field
           detection. "Field 1" shall cause the door to slow when an object is detected at approximately 10" in
           front of the wing panel and will cause the door to resume normal speed when the object moves out of
           the sensor range. "Field 2" shall cause the door to stop rotation when an object is detected within 3 - 4
           inches in front of the wing panel. Door will resume normal speed when the object is removed.

            - Four (4) compressible safety switches shall be placed on the bottom edge of the wing panels.
           Activation shall cause the door to stop. Supervision of all systems must be performed by the Micro-
           processor Control Unit (MCU) by conducting "self-monitoring" every 3 minutes. Malfunction of any
           device shall cause the door to stop and the error code shall be indicated on the diagnostic display of
           the MCU. (Doors without the "self monitoring function" will be considered unsafe and will not be
           considered.)

 B.    Emergency Escape Doors

       The center double swing door panels shall be fitted with friction bar stabilizer system and power cut-off
       safety switches. Door panels shall be held in place by electro-mechanical locking device and released
       upon fire alarm input or loss of power. The door can then be manually broken out to provide a clear and
       unimpeded evacuation path. Loss of power and/or fire alarm input shall be monitored by the MCU and its
       emergency battery unit. Activation of the emergency battery unit shall cause the door to rotate to the
       emergency position. (Doors that do not rotate to the emergency position during a power failure will not be
       considered.)
 C.    Emergency Stop

       The door shall include an emergency stop push button on each side of the curved enclosure and close to
       the door opening. When the button is pressed, the rotation shall stop.

2.05   HARDWARE
 A.    Locking System
       The door will automatically cycle and rest in the full closed and lock position when the selector switch is
       placed in position #1. This locking system utilizes the magnetic brakes and motor drive units and is
       controlled by the (MCU) master control unit.

       An optional electro mechanical lock is available. Device shall set a hardened 1/2 diameter dead bolt
       between the fixed wall structure and the rotating door sections of the revolving door. This optional lock
       must be completely automatic and must be controlled by the MCU through the selector switch.

 B.    Activation Units
       Door shall be activated by manufacturer's standard flush-mounted concealed motion sensors. Activation
       units shall be solid state technology and work on the Doppler principle. Frequency change shall activate
       the revolving door. Activation units shall be concealed in the fixed ceiling area directly above throat
       opening. Two activation units per throat opening. (Surface mounted motion detectors are unacceptable.)

 C.    Program Control Device (PCD)
       Provide one (1) program control device on the interior left vertical jamb of the curved wall. PCD shall
       provide eight (8) function capability including locked in closed position, entry/exit with start from closed
       position, entry/exit with start from open position, continuous rotation, exit only with start from open position,
       exit only with start from closed position, manual operation/forward, manual operation/reverse and summer
       position.
       The PCD utilizes entry code access and does not require key operation during normal use of the door
       system.
       The PCD incorporates a circular buffer memory that records the last 600 operational events of the door
       system and uses visual displays to notify the user when planned maintenance should be performed, if the
       real time clock and climate control systems are activated and if manual key lockout is in effect.
       The real time clock is programmable for 3 different day schedules, 10 different operation modes per day
       schedule, weekly schedules and up to 16 exceptions for holidays.
       The PCD can also accommodate remote diagnostics via an optional modem and client supplied
       telephone/data line.

2.06   FINISH
 A.    Curved Enclosure - curved walls and canopy shall be Clear Anodized Aluminum Finish (Custom colors or
       finishes available).

 B.    Rotating Section - rotating wings and double swing doors shall be Clear Anodized Aluminum Finish
       (Custom colors or finishes available).

 C.    Ceiling - shall be white-coated laminate material.

PART 3 EXECUTION

3.01   INSTALLATION
 A.    Inspection
       Installer must examine the location and advise the Contractor of any conditions not suitable for proper
       installation and timely completion. Installation shall not proceed until conditions have been corrected.

 B.    Erection
       Install revolving doors in accordance with manufacturer's printed instructions and recommendations. Set
       units level, plumb, and true to line, with uniform hairline joints. Securely anchor in place by bolting to the
       fixing rings and silicone to adjacent materials. Use only factory trained and authorized erectors.

 C.    Adjustment
       Installer shall adjust door and hardware for smooth operation, proper engagement of weather-stripping, and
       test all functions of the door system for specified performance.

 D.    Instruction
       Training, of Owner's Maintenance personnel, shall be scheduled for routine service requirements, cleaning,
       lubrication, adjustments and inspection of major components.

 E.    Cleaning
        Clean metal surfaces promptly after installation, exercising care to avoid damage to finishes. Clean glass
        surfaces after installation and remove excess glazing and/or sealant compounds, dirt, labels, etc.


PART 4 GUARANTEE

4.01     LIMITED WARRANTY
Besam's automatic door components are warranted to be free of defects in materials or workmanship under normal
use for a period of one year from the date of shipment from Besam's factory when the components have been
installed by an authorized Besam distributor. Abuse, misuse, modification or improper repair or service by
unauthorized technicians negates this warranty. During the period of this warranty Besam, at its sole option, will
repair or replace any Besam automatic door component or parts thereof found to be defective in material or
workmanship if any necessary return charges are prepaid. Components repaired or replaced under this warranty are
warranted only for the remainder of the period covered by this warranty. For expanded warranty terms see Besam’s
warranty certificate.

Besam reserves the right to make product improvements and change specifications without notice.


                                               END OF SECTION
                                                                                                       June 2005