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Pow er supply
POWER SUPPLY
The switching unit must be connected in accordance with the following description:
Clamper name
Function
L
Supply phase of the equipment and the
connected devices.
N
Working zero
FAN
Fan connection.
COMP
Connection of compressor´s contactor.
HEAT
Connection of electro valve for heating
control.
FROST
NTC sensor of ice coating.
OVHEAT
NTC sensor of compressor´s overheating.
COM
Common wire (conductor) of both NTC
sensors.
The switching unit is delivered with an installed resistor 1K between FROST and COM
clampers. This way it is prepared for operation without NTC heat sensors. In case of
sensors´ connection, it is necessary to disconnect the resistor.
Never disconnect the antenna from the receiver if the equipment is under pressure.
Important warning:
This may damage the receiver. Make sure that you always disconnect the energy supply first
when intending to disconnect the antenna.
