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Application T.D. Coil Notes
Convenience Store 10 - 15ºF. Low Silhouette Multiple units for adequate air coverage
Up to 18’ long = 1 coil
Up to 30’ long = 2 coils
Up to 40’ long = 3 coils
Estimating guide: Cooler 100 SF/ton*
Freezer 75 SF/ton*
Holding Warehouse 10 - 15ºF. Medium or Forklift Operation
Heavy Duty Average air changes
Product load 10 - 15% of total load
Estimating guide: 200 - 300 SF/ton
Produce Warehouse 7 -10ºF. Low Velocity High seasonal loads
Medium Heavy product respiration
or Heavy Duty Additional humidity may be required
Estimating guide: 150 - 200 SF/ton
Blast Cooler or Freezer 7 - 10ºF. Heavy Duty High air velocity, heavy inltration
Fast defrost (4-6 FPI coils)
Product spaced to allow air circulation
Equipment sized to extract all interior heat
Box temp below desired product temperature
Multiple units to provide capacity control
1.5 safety factor sometimes applied to handle
initial high rate of product heat evolution
Ice Cream Hardening 10ºF. Heavy Duty 10 hour pull down with product 30% frozen and a
certain percentage over run
(thickness of ice cream)
Controlled Temperature 15 - 20ºF. Heavy Duty Floating box temperature (40-72ºF.) contingent on
Beer Warehouse average monthly dew point
Auxiliary air circulation may be required due to
high T.D.
Heavy loading - high inltration
20 - 30ºF. pull down on beer
Candy Warehouse 20 - 25ºF. Heavy Duty Low relative humidity
Auxiliary air circulation and reheat may be required
Vapor barrier essential
Prep Room 20ºF. Low Velocity Heavy motor and personnel load
Estimating guide: 150 SF/ton
Floral Box 8ºF. Low Velocity Light loading conditions
Glass Walls
Estimating guide 100 SF/ton*
General Guidelines
SF = Floor Square Foot ton = 12,000 BTUH
Note: Estimating guide ball park gures only. All attempts should
be made to obtain accurate job survey and subsequent refrigeration
calculations.
* Glass doors assumed on one long wall only