Service Manual

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2. Prep Table and Freezer
Temperature/Time-Initiated Defrost Cycle: Defrost cycle occurs once every 6hrs. for prep
tables or 8 hrs. for freezers when defrost initiation temperature achieved (50
°F (10°C) for
Prep Tables or 41
°F (5°C) for the Freezers). Defrost cycle initiation and termination are
controlled by the control module and defrost thermistor.
Prep Table Refrigerators: The defrost heater energizes, the evaporator fan motor
remains energized, and all other components de-energize during the defrost cycle.
There is an in-line defrost safety thermostat.
Freezers: The defrost heater energizes and all other components de-energize during the
defrost cycle. There is an in-line defrost safety thermostat.
Minimum Defrost Time is 5 min.
Maximum Defrost Time is 45 min. for Prep Tables and 1 hr. for Freezers.
To initiate a manual defrost cycle follow the steps below.
1) Rotate TD all the way to the right. Wait 1 to 5sec. then rotate back to original setting.
Defrost initiated. See Fig. 2.
2) Repeat step 1 to terminate defrost.
Fig. 2