©Johnstone Supply eCatalog 216

REFRIGERATION EQUIPMENT Quick Select Chart

Table A: Product Cooling Loads for Walk-In Coolers • (24 hour pulldown/18 hour compressor operation) 24% safety factor added to loads to allow for service

Specific Heat

10°F Pulldown BtuH Load/24 Hours

Specific Heat

10°F Pulldown BtuH Load/24 Hours

Product

Above Freezing 500# 1000# 1500# 2000# 3000# 5000#

Product

Above Freezing 500# 1000# 1500# 2000# 3000# 5000#

Beef Pork

0.72 0.53

240 480 720 960 1,440 2,400 177 353 530 706 1,060 1,767 253 506 760 1,012 1,520 2,533 263 526 790 1,053 1,580 2,633 Table D: Product Freezing Loads for Walk-In Freezers

Seafood

0.80

267 533 800 1,066 1,600 2,667 307 613 920 1,226 1,840 3,067 247 494 740 988 1,480 2,467 333 666 999 1,333 2,000 3,333

Vegetables 0.92 Bakery Food 0.74

Veal & Lamb 0.76

Poultry

0.79

Beer

1.00

Table C: Glass Door Loads

Box Temperature

BTU/ Door

Specific Heat Btu/Lb/°F Latent Heat Freeze

At -10°F Freezer Temperature BtuH for Indicated Lbs. Prod/Day

Product

Thawed

Frozen

Btu/Lb.

Temp. (F)

100 790 523 841 878 906

300

750

1000

1500

3000

35 30

1,060

Beef Pork

0.72 0.53

0.40 0.32 0.45 0.42 0.43 0.47 0.34

95 60

29 28 28 27 28 30 20

2,370 1,571 2,524 2,636 2,719 3,159 1,560

5,925 3,926 6,311 6,590 6,797 7,898 3,900

7,900 5,235 8,414 8,787 9,063

11,850

23,700 15,710 25,240 26,360 27,190 31,590 15,600

960

7,853

0

1,730 1,730 1,730

Veal & Lamb 0.76

100 106 110 130

12,621 13,181 13,595 15,795

-10 -20

Poultry Seafood

0.79 0.80

Vegetables 0.92 Bakery Food 0.74

1,053

10,530

53

520

5,200

7,800

Walk In With A Box Need, Walk Out With A Quote! Turn to Johnstone for your box sizing needs

We are here to help you select the equipment you need fromwithin our portfolio of trusted refrigeration brands, then to finish the project with components and accessories. OR ask us to confirm an existing load calculation at time of failure to avoid a call-back.

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