23
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 infiltration
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 infiltration
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 figures only. All attempts should
be made to obtain accurate job survey and subsequent refrigeration
calculations.
* Glass doors assumed on one long wall only
