Troubleshooting guide

Page 23
Initial Start-Up
When power is applied to the unit, the control will
brie y display all symbols, and the Compressor
symbol will be displayed (if unit is calling for cool-
ing). There may be a brief delay prior to the evapora-
tor and condenser fans turning on, as the fans will
not turn on until the sensors reach their perspective
start temperatures (below 70°F for the evaporator
and above 80°F for the condenser). When the con-
denser fan is activated the “AUX” symbol will turn o ,
and when the evaporator fan is activated the “FAN”
symbol will turn on. The temperature control feature
for the evaporator fan is a feature applicable to Whis-
perkool Advance Product Safety Technology (APST),
which ensures that in the possible event of a cooling
de ciency, the heat from the indoor fan will not raise
the heat of the wine cellar, which could otherwise
have an adverse e ect on the wine aging process.
After the indoor coil reaches a temperature below
70°F, the indoor fan symbol will be displayed and the
fan will turn on.
Note: For remote system condenser fan cycles with
the compressor, the “Aux” symbol does not apply.
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 dif-
ferential of 1°F), the compressor and the condenser
fan will turn o , but the indoor fan will continue to
run for about 5 minutes, which is a feature of the
WhisperKOOL Humidity Management (WHM) sys-
tem. The WHM is an adjustable feature which allows
the customer the convenience of managing the hu-
midity enhancement of their wine cellar. The WHM
is one of the many Customer Preference Selection
features which allow the customer the ability to  ne
tune the controls.
Anti Short Cycle
The Anti Short Cycle ensures that the unit will re-
main o for a period of 5 minutes after the unit has
reached the set point to allow the pressure in the
refrigeration system to equalize prior to starting the
compressor.
Defrost Cycle
The Defrost 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 indoor fan will provide air  ow across the indoor
coil, which will evaporate any frost accumulation.
Low Ambient Conditions
If the unit is installed in a Through-The-Wall applica-
tion (which will allow the condenser to be exposed
to low ambient temperatures), the condenser fan
may cycle on and o . The purpose of the fan cycling
is to maintain the system high side pressure, which
will ensure an adequate refrigeration process. The
fan cycling process is accomplished by way of a tem-
perature probe attached to the condenser coil.
Note: Remote control systems do not use condenser
fan cycling.
Bottle Probe Failure Protection
In the event that a bottle probe should fail, the APST
(Advance Product Safety Technology) will automati-
cally transition the Refrigeration Compressor cycles
to a pre-determined time series (based on detailed
laboratory testing), which will ensure that the prod-
uct is kept within the safe range.
Remote Control Panel (optional)
The control panel can be installed or mounted sepa-
rately from the cooling unit itself (remotely), using
the supplied cable. This option provides unique
 exibility for installing the Extreme Platinum Series
cooling unit in your wine cellar. The remote option
must be speci ed when the unit is ordered.
Note: Remote Control is generally standard with a
“Ducted Unit”
Ducting and Ventilation Options
The ventilation system is ideal for ducting. The op-
tional collars  t standard ventilation ducting allow-
ing the installer to vent air to and from the unit for
optimum performance (please see speci cations for
details).
SYSTEM OPERATION: STANDARD & REMOTE