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1/22 Rev. F 171375
7
After meeting the set-up and installation requirements the unit is ready to start-up. Once the power cord is
connected to a live outlet and the power switch is in the “on” position the unit will start running. Allow the unit to
run for two (2) hours and verify the walk-in is down to temperature prior to loading with product.
These units come equipped with an electronic controller system. The Temperature Control display and operator
interface is located on the front of the unit and comes pre-set to give walk-in air temperatures of approximately
+37ºF for coolers or -10°F for freezers. Refer to the accompanying electronic controller manual for detailed
instructions on adjusting the controller settings.
The electronic controller system is a highly efficient electronic controller that regulates an electronic expansion
valve in response to evaporator superheat and return air temperature, featuring demand defrost fan control
technology. This system will operate differently from previous system you may have worked with in the past. Refer
to the controller instructions supplied with the unit for additional information.
Important: It is the installing contractor’s responsibility to check the operation upon start-up and make necessary
temperature adjustments as required for proper operation.
Note: Capsule Pak Refrigeration Systems that are designed for outdoor installation will be fitted with electric
crankcase heaters and automatic head pressure control valves.
Refrigeration Controller
Capsule Pak refrigeration systems are equipped with an electronic controller system. See separate instructions on
the operation of this electronic temperature control.
Defrost Cycle (Cooler System)
The electronic controller uses an automatic on-demand defrost algorithm that eliminates unnecessary defrosts
typically associated with time-based alternatives which reduces energy consumption.
The low temperature, automatic electric defrost Capsule Pak refrigeration system utilizes the electronic controller
with a programmable set point and a preset algorithm to cycle the fans and compressor in order to maintain a
tighter room temperature.
Important: It is the installing contractor’s responsibility to check the operation upon start-up and make necessary
temperature control adjustments as required for proper operation.
Note: Capsule Pak Refrigeration Systems that are designed for outdoor installation will be fitted with electric
crankcase heaters, electrically heated condensate drain tubes, automatic head pressure control valve, and the
"pump-down cycle".
Defrost Cycle
The electronic controller uses an automatic or demand defrost algorithm that eliminates unnecessary defrosts
typically associated with time based alternatives which reduces energy consumption. For additional information
see the controller instructions supplied with the refrigeration system.
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