•
Ensure the voltage supplied matches the rating speci
fi
ed on the unit spec label.
•
Provide a non-GFI dedicated circuit and an appropriate outlet for the
condensing
unit.
•
Provide a dedicated circuit and circuit breaker for the condensing unit.
•
Provide a weatherproof disconnect for the condensing unit if it is located outside.
Power surges and spikes can damage sensitive electrical equipment. WhisperKOOL recommends plugging the unit into a
surge protector or power conditioner in order to protect your system. As outlined in our terms and conditions, power surges
and spikes are not covered under warranty.
WE RECOMMEND THA T YOU DO NOT USE A GROUND FAULT INTERRUPTER (GFI) WITH THIS PRODUCT.
In case the system should lose power, check the home/main circuit breaker. If the system does not respond properly, refer to
the Troubleshooting Guide.
Communication Cable Operation
WhisperKOOL’s split systems operate like traditional air conditioners where there is wiring between the condensing unit and the
evaporator unit.
WhisperKOOL Cassette Condensing Unit systems do not utilize a solenoid valve or low-pressure switch, which allows the system
to run like a residential HVAC system. A 24V communication cable must be ran between the condensing unit and the evaporator
unit. When the thermostat calls for cooling, a 24V signal is sent from the evaporator air handler unit to the contactor located on
the outdoor cassette condensing unit via the 24V communication cable. Once the contactor is energized, power is then delivered
to the compressor and the system beings to operate.
When the cellar reaches the desired temperature and the thermostat is satisfied, the contactor is de-energized, and the
compressor shuts off.
PREPARING
THE CONDENSING UNIT
Electrical Needs
The unit requires a dedicated 220V, 15-amp circuit.
The unit draws a large inrush current for about 1 second the instant the compressor starts. With a dedicated circuit and circuit
breaker, the condensing unit will have sufficient power for effective operation. The compressor is controlled by a contactor
relay mounted to the condensing unit. 18-5 thermostat (communication line) wire must be ran from the evaporator unit to
the condensing unit which energizes the contactor and allows the condensing unit to operate.
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