Use and Care
22
D. Defrost
1. Undercounter and Worktop Refrigerators
Off-Cycle Defrost: Undercounter and worktop refrigerators defrost naturally between run
cycles.
2. Prep Table Refrigerators and Undercounter and Worktop Freezers
Prep tables and freezers use a heated, time-initiated, temperature-terminated defrost.
• Prep tables and freezers have a defrost interval of 6 hours. The defrost timer starts
when power is supplied to the appliance.
The minimum defrost time is 5 min.
The maximum defrost time is 25 min. for prep tables and 1 hour for freezers.
• When the defrost thermistor warms to 44°F (6.7°C) on prep tables and 45°F (7.2°C)
on freezers, defrost terminates.
• On prep tables, the compressor energizes 1-min. after defrost heater de-energizes
(drip time) and the evaporator fan motor(s) energize 30-sec. after the compressor
energizes. Note that the 30-sec. evaporator fan motor delay time is a maximum;
ifthe defrost thermistor cools to 40°F (4.4°C) before the 30-sec. evaporator fan
motor delay timer terminates, the evaporator fan motor(s) will energize.
• On freezers, the compressor energizes 3-min. after defrost heater de-energizes
(drip time) and the evaporator fan motor(s) energize 5-min. after the compressor
energizes. Note that the 5-min. evaporator fan motor delay time is a maximum; ifthe
defrost thermistor cools to 25°F (-3.8°C) before the 5-min. evaporator fan motor
delay timer terminates, the evaporator fan motor(s) will energize.
To manually initiate or terminate a defrost cycle: Turn the cabinet temperature control
dial to 7, pause for 3 to 10 sec., then return the cabinet temperature control dial to any
position below 7. Defrost initiates or terminates within 5 sec.
Note: When defrost is manually initiated it continues through the normal defrost cycle
unless manually terminated.
Rear Panel
Control
Module
Fig. 20