Refrigeration Load Estimate Form (for rooms above 32ºF) Bulletin by onetwothree4

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									Refrigeration Load Estimate Form (for rooms above 32ºF) Bulletin Above32-05
Estimate for: Estimate by: Date:

Basis for Estimate Room Dimensions: Width ft. x Length ft. x Height Volume: (L) x (W) x (H) = Ambient Temp ºF. (Corrected for sun load) — Room Temp

ft. cu. ft. ºF. =

Note: Tables can be found Note: Tables can be found in Engineering Manual, H-ENG-2 in Engineering Manual.
ºF. T.D.

Insulation Inches Ceiling Walls Floor Type

Product Load (a) temp. of (b) temp. of

lbs./day of ºF. to lbs./day of ºF. to

to be reduced from entering ºF. Temp. Drop ºF. to be reduced from entering ºF. Temp. Drop ºF.

Miscellaneous Motors (including all blower motors) Lights (assume 1 watt/sq.ft.) No. of people 1. Transmission Loads Ceiling: (L) North Wall: (L) South Wall: (L) East Wall: (W) (L) West Wall: (W) (L) Floor: (L) 2. Air Change Load Volume: 3. Additional Loads Electrical Motors: Electrical Lights: People Load: Glass Door Load:

HP Watts

Ground Temp.

(Table 21)

x (W) (H) x (W) (H) x (W) x (W) (H) (H) x (W) x (W)

x Heat Load x Heat Load x Heat Load x Heat Load x Heat Load x Heat Load

(Table 1) (Table 1) (Table 1) (Table 1) (Table 1) (Table 1)

= = = = = =

cu. ft. x

Factor (Table 4) x

Factor (Table 6)

=

HP x 75000 BTU/HP/24 hr. Watts x 82 People x BTU/24 hrs. (Table 12) Doors x 19200 BTU/Door/24 hr.

= = = =

4. Product Load: Sensible (Product Load Figured @ 24 hr. Pulldown*) (a) lbs./day x Spec. Heat (Table 7) x ºF. Temp Drop (b) lbs./day x Spec. Heat (Table 7) x ºF. Temp Drop *For product pulldown time other than 24 hrs. figure 24 hr. load x (24/Pulldown Time) 5. Product Load: Respiration* (a) lbs. stored x BTU/lbs./24 hrs. (Table 8) (b) lbs. stored x BTU/lbs./24 hrs. (Table 8) *For consideration of previously loaded product, a multiplier of (5) is normally applied to the daily product load (Line #4) Total Refrigeration Load (1+2+3+4+5) BTU/24 hrs. Add 10% Safety Factor Total with Safety/Factor BTU/24 hrs. Divide by No. of Operating Hrs. (16) to obtain BTUH Cooling Requirement Condensing Unit Qty. Model No. Equipment Selection Unit Cooler Qty. Model No. System Capacity BTU/hr.

= =

= =

2175 West Park Place Blvd. • Stone Mountain, GA 30087 • 770.465.5600 • Fax: 770.465.5990 • www.heatcraftrpd.com

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Floor Sq. Ft. 36 48 60 64 80 96 112 128 144 160 176 192 208 224 240 256 100 120 140 160 180 200 240 280 144 168 192 216 240 264 196 224 280 336 256 320 374 324 360 432 400 480 560 640 720 800 960 1120 1280 1440 1600 + Room Usage Avg. Heavy 4750 5417 6055 6188 6954 7669 8366 9051 9748 10419 11540 12224 12874 13519 14187 14824 7789 8626 9439 10250 11049 11838 13391 14891 10038 10956 11886 12775 13681 14549 11993 13013 15011 16969 14148 16349 18506 16476 18128 20484 19470 21988 24963 27480 29946 32420 38694 43183 48550 54344 58738 6389 7274 8100 8291 9269 10174 11045 11888 12732 13548 14807 15622 16398 17163 17947 18694 10339 11385 12384 13379 14349 15299 17180 18922 13021 14155 15284 16359 17440 18474 15423 16656 19042 21347 18019 20631 23157 20782 22644 25389 24145 27132 30480 33340 36127 38904 45735 50733 56318 62804 67611 BTUH Load +0 Room Usage Avg. Heavy 4488 5119 5722 5848 6572 7247 7905 8553 9212 9846 10905 11522 12166 12775 13407 14009 7361 8152 8920 9686 10441 11187 12654 14072 9486 10353 11232 12072 12928 13749 11333 12297 14185 16036 13370 15450 17488 15570 17131 19357 18340 20779 23590 25969 28299 30637 36565 40808 45880 51355 55507 6037 6974 7655 7835 8759 9614 10437 11234 12032 12803 13992 14763 15496 16219 16960 17666 9770 10759 11703 12643 13560 14458 16207 17881 12305 13376 14443 15459 16481 17458 14575 15740 17795 21073 17028 19496 21883 19639 21398 23993 22817 25640 28804 31506 34140 36764 46878 48970 55056 61626 66608 0 Room Usage Avg. Heavy 4583 5225 5806 5934 6631 7273 7922 8528 9169 9755 10817 11386 11976 12530 13108 13653 7386 8138 8887 9577 10279 10942 12751 14043 8991 10235 11029 11807 12573 13299 11126 11995 13687 15330 12939 14777 16563 14864 16305 18260 17386 19453 21963 23954 25919 27888 34681 38123 42894 46254 49583 6505 7407 8213 8410 9363 10234 11092 11890 12732 13490 14715 15439 16176 16873 17587 18264 10401 11405 12405 13311 14216 15070 17231 18844 12553 14052 15082 16080 17052 17974 15216 16338 18487 20539 17550 19873 22093 19989 21678 24090 23019 25566 28514 30909 33251 35575 43023 47062 51900 56259 60073 -10 room Usage Avg. Heavy 4929 5630 6265 6405 7165 7867 8575 9237 9936 10576 11692 12314 12955 13562 14191 14786 7990 8809 9626 10379 11144 11868 13796 15205 9739 11055 11919 12767 13599 14392 12024 12971 14811 16598 13998 15996 17938 16090 17617 19739 18790 21036 23721 25884 28017 30153 37368 41095 46146 49872 53385 7041 8028 8911 9127 10169 11123 12059 12933 13852 14682 15977 16769 17573 18336 19115 19855 11304 12401 13493 14484 15472 16405 18721 20482 13655 15251 16375 17464 18524 19541 16521 17745 20088 22324 19067 21598 24017 21724 23523 26149 24982 27755 30922 33529 36077 38603 46538 50921 56580 60781 64916 -0 Room Usage Avg. Heavy 5274 6034 6725 6876 7699 8461 9227 9946 10702 11397 12567 13242 13935 14594 15274 15920 8594 9481 10365 11182 12009 12794 14842 16367 10486 11875 12810 13726 14626 15485 12923 13946 15935 17866 15056 17215 19313 17317 18930 21219 20194 22619 25479 27813 30115 32518 39939 43950 49282 53194 57070 7577 8648 9609 9844 10974 12011 13026 13976 14972 15874 17239 18099 18970 19799 20642 21446 12208 13397 14581 15658 16728 17741 20211 22120 14756 16450 17667 18847 19995 21088 17826 19152 21688 24110 20583 23323 25941 23460 25369 28208 16945 29945 33330 36149 38903 41631 49937 54664 60656 65186 69642

Dimension 6x6x8 6x8x8 6x10x8 8x8x8 8x10x8 8x12x8 8x14x8 8x16x8 8x18x8 8x20x8 8x22x8 8x24x8 8x26x8 8x28x8 8x30x8 8x32x8 10x10x8 10x12x8 10x14x8 10x16x8 10x18x8 10x20x8 10x24x8 10x28x8 12x12x8 12x14x8 12x16x8 12x18x8 12x20x8 12x22x8 14x14x8 14x16x8 14x20x8 14x24x8 16x16x8 16x20x8 16x24x8 18x18x8 18x20x8 18x24x8 20x20x8 20x24x8 20x28x8 20x32x8 20x36x8 20x40x8 24x40x8 28x40x8 32x40x8 36x40x8 40x40x8

*Heavy usage is defined as two times the average air change. Average air changes determined by ASHRAE based on box size for 24 hour period.

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