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Compact Refrigerators and Freezers Service and Installation Manual
For customer service, call (800) 733-8829, (800) 773-8821, Fax (989) 773-3210, www.delfield.com
8
After the unit is connected to power it will automatically begin
operating. With the doors closed, the temperature of the
cabinet should reach 36°F to 40°F (2°C to 4°C) on refrigerators
in about one hour.
A thermostat located in the evaporator housing on interior rear
of the unit, controls the temperature in the box. The factory
setting for the control is “4” and maintains about 38°F (3°C)
in the box. Set toward “1” for higher temperatures and toward
“7” for lower temperatures.
Continuous opening and closing of the doors will hamper the
unit’s ability to maintain optimum refrigeration temperature.
Refrigerators defrost automatically with every cycle of the
compressor. The water generated is routed to a pan on the
rear of the unit and is evaporated by the heat given off by the
compressor.
Turn the defrost timer screw ONLY in a clockwise
direction, turning the screw counter-clockwise
will break the cam motor.
Service Alert
During normal operation the evaporator fan may cycle
and/or pulse independently of the compressor. Consult
the service manual or contact Technical Support at
1-800-733-8829 if you are unsure of the proper function.
Refrigerator Temperature Control Operation
Freezer Model 4148 Temperature Control Operation
After the unit is connected to power it will automatically begin
operating. With the doors closed, the temperature of the
cabinet should reach 0°F (-18°C) on freezers in about one
hour.
A thermostat located in the evaporator housing on interior rear
of the unit, controls the temperature in the box. The factory
setting for the control is “4” and maintains about -3°F (-18°C)
in the box. Set toward “1” for higher temperatures and toward
“7” for lower temperatures.
Continuous opening and closing of the doors will hamper the
unit’s ability to maintain optimum refrigeration temperature.
When the mechanical timer initiates a defrost cycle, power to
the condensing unit and evaporator fans is interrupted and
the defrost heater is energized. The defrost heater warms the
evaporator coil thereby melting all frost accumulated during
the previous refrigeration cycle. Once all frost is eliminated,
the temperature of the coil continues to rise until it reaches 27
minutes. The defrost control switches to refrigeration mode.
Defrost will initiate every six hours.
Turn the defrost timer screw ONLY in a clockwise
direction, turning the screw counter-clockwise
will break the cam motor.
Service Alert
During normal operation the evaporator fan may cycle
and/or pulse independently of the compressor. Consult
the service manual or contact Technical Support at
1-800-733-8829 if you are unsure of the proper function.