Connection Of The Boiler Temperature Sensor - Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions Manual

Installation

Connection of the boiler temperature sensor

3
760
740
720
700
680
660
640
620
600
580
560
540 400
0 20 40
32 68 104
Boiler temperature in
26
60 80 100 120
141 176 212 248
°C / °F
The sensor measures the boiler
water temperature.
The boiler temperature sensor is
installed at the same time as the
boiler insulation.
Check the sensor
1. Disconnect plug § in the
terminal compartment of the
boiler control.
2. Measure resistance of sensor
at terminals "1" and "2" of the
plug.
Boiler water
temperature
in °C / °F
40 / 104
50 / 122
60 / 140
3. Compare the value measured
with the current temperature.
If the value differs significantly,
check installation and, if
necessary, replace sensor.
Technical data
Degree of protection: IP 32
Ambient temperature
During operation:
0 to + 130°C
32 to + 266°F
During storage and transport:
-20 to + 70°C
-4 to + 158°F
Electrical connection
The sensors are ready to plug in.
Insert the boiler temperature
sensor in socket "3" of the boiler
control.
140
284
Resistance
in 
578
597
616