Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 150
Air source heat pump, monoblock version for heating and cooling operation, with 1 integrated heating/cooling circuit
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Also See for VITOCAL 151-A:
- Operating instructions for the system user (60 pages) ,
- Manual (24 pages)
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Outdoor unit maintenance
Checking the temperature sensors
Temperature sensors are connected to the
VCMU refrigerant circuit controller in the outdoor unit.
Temperature sensor NTC 10 k
Air intake temperature sensor
■
Interior temperature sensor
■
Compressor suction gas temperature sensor
■
Suction gas temperature sensor, evaporator
■
Secondary circuit flow temperature sensor
■
Condenser liquid gas temperature sensor
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Hot gas temperature sensor
■
Compressor suction gas temperature sensor
■
Liquid gas temperature sensor, heating
■
Liquid gas temperature sensor, cooling
■
150
Ω
Connection
Position of the temperature sensor: See chapter "Out-
door unit maintenance: Overview of internal compo-
nents"
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