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2500CU_ 1_1_11
SYSTEM OPERATION WHISPERKOOL 2500
Initial start-up
When the unit is rst turned on, the control will briey display all symbols, and the green snowake sym-
bol will show up if the unit is calling for cooling. There may be a brief delay prior to the evaporator fan
turning on, as it will not start until the probe temperature drops to below 70°F. When the fan is activated,
the fan symbol will be displayed. The Advance Product Safety Technology (APST), which ensures that in
the possible event of a cooling deciency, the heat from the in-cabinet fan will not raise the tempera-
ture of the wine cellar, which could otherwise have an adverse eect on the wine aging process.
Normal system cycle
After the bottle probe has reached the set point (all units are shipped with the set point of 55°F and a
dierential of 1 degree), the compressor and the condenser fan will turn o, but the in-cabinet evapora-
tor fan will continue to run for about 1 minute.
Anti-Frost Cycle
The Anti-Frost Cycle is a precautionary measure, as icing or frosting of the coil does not occur during
normal operation. The system will go through a defrost cycle every 4 hours. During the defrost cycle, the
in-cabinet fan will provide airow across the coil, which will evaporate any frost accumulation.
Bottle probe failure protection
Should a bottle probe fail, the Advance Product Safety Technology (APST) will automatically transition the
refrigeration compressor cycles to a pre-determined time series (based on laboratory testing), which will
ensure that the temperature is kept within the safe range.
Control panel
The control panel is designed to give the user the ability to monitor and change cellar conditions when
the evaporating unit is placed in a remote location.
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