Quick Start Guide - WhisperKool PLATINUM SPLIT 4000 Condenser Technician Manual

QUICK START GUIDE

Pump Down Cycle
WhisperKOOL's split systems operate on a pump down cycle different from traditional air conditioners. As such, there is no wiring
between the Condensing Unit and Evaporator Unit. (However, if the system is equipped with a Cold Weather Start Kit, it will
require two 24-volt wires running from the Evaporator Unit to the Condensing Unit.)
WhisperKOOL units utilize a solenoid valve on the liquid line and a low-pressure switch on the suction line. When the thermostat
calls for cooling, the solenoid valve opens, permitting the flow of refrigerant. The low-pressure switch then signals the compressor
to cycle on.
When the cellar reaches the desired temperature and the thermostat is satisfied, the solenoid will close, stopping the liquid
refrigerant flow to the TXV valve. The Compressor will continue to operate until most of the refrigerant on the low side boils off
and is pumped through the compressor into the condenser coil and receiver. As the suction pressure falls below the pressure
control setting, the low-pressure switch will signal the compressor to cycle off. Most of the refrigerant is now stored between the
condensing unit and receiver.
Cold Weather Start Kit
If you are installing a unit equipped with the optional cold weather start kit, run two low-voltage wires from the Evaporator Unit to
the Condensing Unit.
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Ground Fault Interrupter
WARNING: Do not utilize a ground fault interrupter, as it will prevent the unit from drawing
the necessary amperage to start the unit.
TXV Adjustments
A. A TXV adjustment may be necessary based on ambient temperatures in the cellar and at the condensing unit.
B. Adjust the TXV until the superheat is between 8-12°F degrees.
C. Under normal operation, with the wine cellar at 55°F and the ambient temperature at 85°F, the low side pressure should be
between 28-32 PSI and the high side should be between 170-180 PSI.
8° -­‐ 1 2°, t he T XV w ill n eed t o b e a djusted.
To i ncrease S uperheat–Turn A djustment P in
To d ecrease S uperheat–Turn A djustment
TXV
The T XV c omes p re-­‐ a djusted f rom t he
factory. I f t he S uperheat i s n ot w ithin
Adjusting t he T XV
Clockwise.
Pin C ounter C lockwise.
Platinum Split
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The T
facto
8° -­‐ 1 2°
To i ncrea
To d ecr