Sensors - Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual

Vitoligno 300-C Installation/Service

Sensors

Flue gas temperature sensor (Pt1000)
Temperature
Legend
A Data point shown: Resistance of 1.1 kΩ at
a temperature of 25°C
Further sensors (Pt1000)
Temperature
Sensor type Pt1000:
Supply temperature sensor

Buffer tank temperature sensor

Return temperature sensor

Flue gas temperature sensor

Outdoor temperature sensor

Curve of the sensor from the extension kit for heating
circuit with mixing valve:
Refer to the extension kit installation instructions
Connection
See chapter "Connection and wiring diagram" from
page 142.
Checking the sensors
1. Pull out corresponding plug.
2. Check the sensor resistance at the plug.
3. Compare the test result with the actual temperature.
Checking test results, see chapter "Diagnosis".
In the case of severe deviation, check sensor
installation and replace the sensor if required.
Service
103