Page 14 | 1-855-235-5271
CX
040418
SYSTEM OPERATION
Initial Start-Up
When power is applied to the unit, the control will briefly
display all symbols, and the snowflake symbol will be displayed
(if unit is calling for cooling). There may be a brief delay (up to
60 seconds) prior to the evaporator fan turning on. When the
evaporator fan is activated, the fan symbol will display.
APST (Advance Product Safety Technology) is a temperature
control feature for the evaporator fan that comes standard with
all CellarCool units. APST ensures that in the possible event of
a cooling deficiency, the heat from the indoor fan will not raise
the temperature of the wine cellar, which could otherwise have
an adverse effect on the wine-aging process.
Setpoint
The setpoint is preset at the factory (CellarCool) to 55F°. It can
be adjusted by the customer between 50°F and 70°F (in 1°F
increments).
Cooling Operation
Cooling is activated once the air sensing probe senses a
temperature that is 4°F greater than the setpoint. The controller
then energizes the compressor relay which activates the
compressor. The evaporator and condenser fans operate with
the compressor. The unit provides cooling until the air-sensing
probe senses the setpoint has been reached. At this point the
compressor relay is de-energized, which stops the compressor.
Anti-Short Cycle
The Anti-Short Cycle ensures that the compressor will remain
off for a period of three minutes after the unit has reached
the setpoint to allow the pressure in the refrigeration unit to
equalize prior to starting the compressor.
Anti-Frost Cycle (defrost)
After two hours of compressor operation, the controller will
activate the Anti-Frost cycle. The compressor relay will de-
energize, stopping the compressor, evaporator fans, and
condenser fans. The compressor relay will remain de-energized
for five minutes, and then the unit will return to normal
operation. The setpoint and the dripping snowflake symbol will
be displayed during the Anti-Frost cycle.
Air-Sensing Probe Failure Protection
In the event that an air-sensing probe should fail, the APST
(Advance Product Safety Technology) will automatically
transition the compressor to a timed cycle based on detailed
laboratory testing, which will ensure that the product is kept
within a safe temperature range.
Display
The setpoint is displayed by default. “Def” is displayed during
Anti-Frost. The air sensing probe and evaporator probe
temperatures can be accessed by pushing the SET button and
scrolling through “PB1” (air sensing probe).
Safety Features
Once the compressor relay is de-energized the controller must
wait five minutes before reenergizing the relay. This prevents
the compressor from repeatedly turning off and on. If the unit
is calling for cooling during this time, the compressor symbol
will blink, indicating that cooling is needed but the control is
waiting for the Anti-Short cycle delay.
In the event of a faulty air-sensing probe, the compressor will
cycle off for 10 minutes and on for 40 minutes. “E1” will be
displayed on the screen.
Alarms
See “Alarm Codes” in Controller Function chart.
