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Quick Selection Guide
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Walk-In Cooler Box Load Parameters
- 95°F ambient air temperature surrounding box
- 4" styrene (R=16.7, K=.24) walls/ceiling, 6" concrete slab floor
- Average product load with 5°F pulldown in 24 hours
- BTUH load based on 16-18 hour compressor run time for 35°F box (timer recommended)
- See Table C for adjustment to box load for glass doors
- For 80°F ambient temp. surrounding box deduct 12%
- For 4" Urethane walls + ceiling, 6" concrete slab floor deduct 12%
- For 10' ceiling height add 10%
- For additional BTUH load for product cooling see Table A
Walk-In Freezer Box Load Parameters
- 95°F ambient air temperature surrounding box
- 4" urethane (R=25, K=.16) walls, ceiling + floor
- Average product load with 10°F pulldown in 24 hours
- BTUH load based on 18 hour compressor run time
- See Table C for adjustment to box load for glass doors
- For 80°F ambient temp. surrounding box deduct 12%
- For 20 hour compressor run time (light frost load) in lieu of 18 hou run time, deduct 11%
- For 10' ceiling height add 10%
- For additional BTUH load for product cooling see Table D
Table A - Product Cooling Loads for Walk-In Coolers
Product | Specific Heat Above Freezing |
10 Degree Pulldown BTUH Load for Indicated lbs of Product per 24 hours | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
500 | 1000 | 2000 | 2000 | 3000 | 5000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Beef | 0.72 | 240 | 480 | 720 | 960 | 1440 | 2400 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pork | 0.53 | 177 | 353 | 530 | 706 | 1060 | 1767 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Veal & Lamb | 0.76 | 253 | 506 | 760 | 1012 | 1520 | 2533 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Poultry | 0.79 | 263 | 526 | 790 | 1053 | 1580 | 2633 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Seafood | 0.80 | 267 | 533 | 800 | 1066 | 1600 | 2667 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vegetables | 0.92 | 307 | 613 | 920 | 1226 | 1840 | 3067 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bakery Food | 0.74 | 247 | 494 | 740 | 988 | 1480 | 2467 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Beer | 1.00 | 333 | 666 | 1000 | 1333 | 2000 | 3333 |
Table B - Meat Cutting/Prep Room Load
(BTUH/hr/sq.ft. of floor area)
Floor Sq. Ft. | Approx. 65% R.H. Room Temp. | ||||||||||||||||||||||||||||||||||
55°F | 50°F | ||||||||||||||||||||||||||||||||||
100 | 93 | 105 | |||||||||||||||||||||||||||||||||
200 | 88 | 99 | |||||||||||||||||||||||||||||||||
300 | 85 | 95 | |||||||||||||||||||||||||||||||||
400 | 81 | 90 | |||||||||||||||||||||||||||||||||
500 | 78 | 87 | |||||||||||||||||||||||||||||||||
600 | 75 | 85 | |||||||||||||||||||||||||||||||||
700 | 72 | 81 | |||||||||||||||||||||||||||||||||
800 | 69 | 78 | |||||||||||||||||||||||||||||||||
900 | 67 | 75 | |||||||||||||||||||||||||||||||||
1000 | 65 | 73 | |||||||||||||||||||||||||||||||||
1200 | 62 | 69 |
Room loads based on a continuous operation that includes an allowance for the average number of personnel, processing equipment, etc., with a glass panel in one wall and walls and ceilings insulated with 3" of styrene with box located in an air-conditioned area. The evaporator should be low outlet velocity type to avoid drafts and should be selected for continuous operation and not less than 30°F evaporator temperature.
Table C - Glass Door Loads
Box Temperature | BTU per Door |
|||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
+35 | 1060 | |||||||||||||||||||||||||
+30 | 960 | |||||||||||||||||||||||||
0 | 1730 | |||||||||||||||||||||||||
-10 | 1730 | |||||||||||||||||||||||||
-20 | 1730 |
Adjusted for run time load. Multiply number of doors times door load above and add to box load.
Table D - Product Freezing Loads for Walk-In Freezers
Click for Printable Version
Product
Specific Heat BTU/lb/°F
Latent Heat BTU/lb
Freezer Temp (F)
32 -
32 +
100
300
750
1000
1500
3000
Beef
0.72
0.40
95
29
790
2370
5925
7900
11850
23700
Pork
0.53
0.32
60
28
523
1571
3926
5235
7853
15710
Veal & Lamb
0.76
0.45
100
28
841
2524
6311
8414
12621
25240
Poultry
0.79
0.42
106
27
878
2636
6590
8787
13181
26360
Seafood
0.80
0.43
110
28
906
2719
6797
9063
13595
27190
Vegetables
0.92
0.47
130
30
1053
3159
7898
10530
15795
31590
Bakery Food
0.74
0.34
53
20
520
1560
3900
5200
7800
15600
24 and dividing by the specified pulldown time in hours. To adjust for 0°F freezer temperature, multiply the above loads by 0.97, and for -20°F freezer, multiply by 1.04
Dimensions
Floor Sq. Ft.
Avg.
Hvy.
Avg.
Hvy.
Avg.
Hvy.
Avg.
Hvy.
Avg.
Hvy.
6 x 6 x 8
36
4750
6389
4488
6037
4583
6505
4929
7041
5274
7577
6 x 8 x 8
48
5417
7274
5119
6974
5225
7407
5630
8028
6034
8648
6 x 10 x 8
60
6055
8100
5722
7655
5806
8213
6265
8911
6725
9609
8 x 8 x 8
64
6188
8291
5848
7835
5934
8410
6405
9127
6876
9844
8 x 10 x 8
80
6954
9269
6572
8759
6631
9363
7165
10169
7699
10974
8 x 12 x 8
96
7669
10174
7247
9614
7273
10234
7867
11123
8461
12011
8 x 14 x 8
112
8366
11045
7905
10437
7922
11092
8575
12059
9227
13026
8 x 16 x 8
128
9051
11888
8553
11234
8528
11890
9237
12933
9946
13976
8 x 18 x 8
144
9748
12732
9212
12032
9169
12732
9936
13852
10702
14972
8 x 20 x 8
160
10419
13548
9846
12803
9755
13490
10576
14682
11397
15874
8 x 22 x 8
176
11540
14807
10905
13992
10817
14715
11692
15977
12567
17239
8 x 24 x 8
192
12224
15622
11552
14763
11386
15439
12314
16769
13242
18099
8 x 26 x 8
208
12874
16398
12166
15496
11976
16176
12955
17573
13935
18970
8 x 28 x 8
224
13519
17163
12775
16219
12530
16873
13562
18336
14594
19799
8 x 30 x 8
240
14187
17947
13407
16960
13108
17587
14191
19115
15274
20642
8 x 32 x 8
256
14824
18694
14009
17666
13653
18264
14786
19855
15920
21446
10 x 10 x 8
100
7789
10339
7361
9770
7386
10401
7990
11304
8594
12208
10 x 12 x 8
120
8626
11385
8152
10759
8138
11405
8809
12401
9481
13397
10 x 14 x 8
140
9439
12384
8920
11703
8887
12405
9626
13493
10365
14581
10 x 16 x 8
160
10250
13379
9686
12643
9577
13311
10379
14484
11182
15658
10 x 18 x 8
180
11049
14349
10441
13560
10279
14216
11144
15472
12009
16728
10 x 20 x 8
200
11838
15299
11187
14458
10942
15070
11868
16405
12794
17741
10 x 24 x 8
240
13391
17180
12654
16207
12751
17231
13796
18721
14842
20211
10 x 28 x 8
280
14891
18922
14072
17881
14043
18844
15205
20482
16367
22120
12 x 12 x 8
144
10038
13021
9486
12305
8991
12553
9739
13655
10486
14756
12 x 14 x 8
168
10956
14155
10353
13376
10235
14052
11055
15251
11875
16450
12 x 16 x 8
192
11886
15284
11232
14443
11029
15082
11919
16375
12810
17667
12 x 18 x 8
216
12775
16359
12072
15459
11807
16080
12767
17464
13726
18847
12 x 20 x 8
240
13681
17440
12928
16481
12573
17052
13599
18524
14626
19995
12 x 22 x 8
264
14549
18474
13749
17458
13299
17974
14392
19541
15485
21088
14 x 14 x 8
196
11993
15423
11333
14575
11126
15216
12024
16521
12923
17826
14 x 16 x 8
224
13013
16656
12297
15740
11995
16338
12971
17745
13946
19152
14 x 20 x 8
280
15011
19042
14185
17795
13687
18487
14811
20088
15935
21688
14 x 24 x 8
336
16969
21347
16036
21073
15330
20539
16598
22324
17866
24110
16 x 16 x 8
256
14148
18019
13370
17028
12939
17550
13998
19067
15056
20583
16 x 20 x 8
320
16349
20631
15450
19496
14777
19873
15996
21598
17215
23323
16 x 24 x 8
374
18506
23157
17488
21883
16563
22093
17938
24017
19313
25941
18 x 18 x 8
324
16476
20782
15570
19639
14864
19989
16090
21724
17317
23460
18 x 20 x 8
360
18128
22644
17131
21398
16305
21678
17617
23523
18930
25369
18 x 24 x 8
432
20484
25389
19357
23993
18260
24090
19739
26149
21219
28208
20 x 20 x 8
400
19470
24145
18340
22817
17386
23019
18790
24982
20194
26945
20 x 24 x 8
480
21988
27132
20779
25640
19453
25566
21036
27755
22619
29945
20 x 28 x 8
560
24963
30480
23590
28804
21963
28514
23721
30922
25479
33330
20 x 32 x 8
640
27480
33340
25969
31506
23954
30909
25884
33529
27813
36149
20 x 36 x 8
720
29946
36127
28299
34140
25919
33251
28017
36077
30115
38903
20 x 40 x 8
800
32420
38904
30637
36764
27888
35575
30153
38603
32518
41631
24 x 40 x 8
960
38694
45735
36565
43878
34681
43023
37368
46538
39939
49937
28 x 40 x 8
1120
43183
50733
40808
48970
38123
47062
41095
50921
43950
54664
32 x 40 x 8
1280
48550
56318
45880
55056
42894
51900
46146
56580
49282
60656
36 x 40 x 8
1440
54344
62804
51355
61626
46254
56259
49872
60781
53194
65186
40 x 40 x 8
1600
58738
67611
55507
66608
49583
60073
53385
64916
57070
69642
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