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Page 26 PT-EXPL 072010
Initial Start-Up
When power is applied to the unit, the control will
briey display all symbols, and the Compressor sym-
bol will be displayed (if unit is calling for cooling).
There may be a brief delay prior to the evaporator and
condenser fans turning on, as the fans will not turn on
until the sensors reach their perspective start tem-
peratures (below 70°F for the evaporator and above
80°F for the condenser). When the condenser 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 evapora-
tor fan is a feature applicable to Whisperkool Advance
Product Safety Technology (APST), which ensures
that in the possible event of a cooling deciency, the
heat from the indoor fan will not raise the heat of the
wine cellar, which could otherwise have an adverse
eect 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) system.
The WHM is an adjustable feature which allows the
customer the convenience of managing the humid-
ity 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 remain
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 cy-
cling process is accomplished by way of a temperature
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 product
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 Series cooling unit in your
wine cellar. The remote option must be specied 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 option-
al collars t standard ventilation ducting allowing the
installer to vent air to and from the unit for optimum
performance (please see specications for details).
SYSTEM OPERATION: STANDARD & REMOTE