Viessmann Vitocal 252-A Series - Checking the Temperature Sensors

182
Removing the ball valve with filter
1.3.
4.
!
G 1¼
1.
3.
2.
50 ± 2 Nm
Fig. 122
Checking the temperature sensors
Temperature sensors are connected to the
VCMU refrigerant circuit controller in the outdoor unit.
Temperature sensor NTC 10 kΩ Connection
■
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
■
Hot gas temperature sensor
■
Compressor suction gas temperature sensor
■
Liquid gas temperature sensor, heating
■
Liquid gas temperature sensor, cooling
Position of the temperature sensor: See chapter "Out-
door unit maintenance: Overview of internal compo-
nents"
Outdoor unit maintenance
Removing the hydraulic components (cont.)
6222080
Maintenance