Boiler Temperature Sensor - Viessmann Vitotronic 300 KW3 Installation Instructions Manual

Electrical connections
Sensors
(continued)

Boiler temperature sensor

Tank temperature sensor
14
The boiler temperature sensor is installed at the same time as the boiler insulation.
Insert connector in socket "3" (see
Vitotronic connections) and insert the
molded strain relief clamp.
Heating systems without domestic hot
water heating
Do not connect the DHW tank
temperature sensor to the control unit.
Heating systems with domestic hot water
heating
1.Install the DHW tank temperature
sensor.
Installation Instructions for
domestic hot water tank.
IMPORTANT
When installing the DHW tank
temperature sensor in tanks from other
manufacturers, ensure that sensor firmly
contacts the sensor well wall.
IMPORTANT
Ensure that the maximum permissible
domestic hot water temperature is not
exceeded. If necessary, an extra safety
high limit can be installed or an approved
type of tempering valve must be
installed.
2. Insert connector in socket "5".
Insert molded strain relief clamp.