Function; Room Temperature Control - Technibel CAV182R5TA Series Technical Data & Service Manual

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4. FUNCTION

4-1. Room Temperature Control

I Cooling
G Room temperature control is obtained by cycling the compressor ON and OFF under control of the room
temperature sensor in the remote control unit.
G The room temperature (and other informations) is transmitted every 5 minutes by the remote control unit to the
controller in the indoor unit.
5 minutes
T+1 ° C
T ° C
set temp.
More than
5 minutes
Compressor
Outdoor fan
Indoor fan
G The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least
3 minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant
pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.
G As a protective measure, the control circuit switches the compressor OFF not before than 5 minutes of
compressor operation.
G Thermo. ON : When the room temperature is above T + 1°C (T°C is set temperature).
Compressor © ON
G Thermo. OFF : When the room temperature is equal to or below set temperature T°C.
Compressor © OFF
Signal from remote control unit
5 minutes
5 minutes
Thermo.
Thermo.
OFF
ON
5 minutes
ON
OFF
ON
OFF
5 minutes
5 minutes
Thermo.
Thermo.
OFF
ON
3 minutes
ON
OFF
ON
OFF
Set speed
9
5 minutes
5 minutes
Thermo.
Thermo.
Thermo.
ON
ON
OFF
Room temp.
ON
OFF
ON
OFF

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