Sensors - Viessmann VITOTRONIC300 Installation And Service Instructions Manual

Components

Sensors

124
Temperature
Vitotronic 300, GW2B Installation and Service
Boiler water, DHW tank, supply (Therm-Control sensor),
return and room temperature sensors
Note:
H The supply temperature sensor can be used as a
contact or immersion temperature sensor.
Note: The supply temperature sensor in the mixing
valve extension kit is a contact temperature
sensor.
H The room temperature sensor is connected at terminals
3 and 4 in the Vitotrol 300A.
Installation and service instructions,
Vitotronic 300A
Viessmann NTC 10 kΩ (blue marking)
1. Pull corresponding plug.
2. Check the sensor resistance and compare it with the
curve.
3. In the case of severe deviation, check the installation
and replace the sensor if required.