Part Number: 9294045 07/17
11
Section 3
Operation
Controls/Programming/Settings
R404A REFRIGERATORS
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.
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.
During normal operation the evaporator fan may cycle
and/or pulse independently of the compressor. Consult
the service manual or contact Technical Support at
1-844-724-CARE if you are unsure of the proper
function.
R290 REFRIGERATORS
At initial start-up or anytime power is disconnected, then
reconnected to the unit, the control will delay all operations
for a short time (up to 30 minutes.) While in this delay
period the control will initialize.
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. The electronic temperature control
constantly monitors box temperature and evaporator coil
temperature to maintain consistent product temperatures.
Refrigerators periodically go into defrost to allow
the accumulated frost on the evaporator to clear, the
compressor and condenser fan motor will turn off when
the temperature control detects a certain evaporator
temperature. After the defrost cycle is complete, the
temperature control will return to a normal cooling cycle.
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.
During normal operation the evaporator fan may cycle
and/or pulse independently of the compressor. Consult
the service manual or contact Technical Support at
1-844-724-CARE if you are unsure of the proper
function.
Electronic Temperature Control Location & Adjustment
Rear View Of R290 Refrigerator
The control is located in the control box at the rear of
the unit. Never turn the knob more than one dial
number and always allow eight hours for temperature
stabilization before making any additional adjustments.
To adjust for colder temperatures, turn the knob clockwise.
For warmer temperatures, turn the knob counter-
clockwise. Turn the knob fully counter-clockwise to turn the
refrigeration system off.
