Connection Of The Dhw Tank Temperature Sensor - Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual

Connection of the DHW Tank Temperature Sensor

The sensor measures the domestic hot
water tank temperature.
5
760
740
720
700
680
660
640
620
600
580
560
540 400
0 20 40
32 68 104
DHW temperature in
Heating systems with domestic hot
water heating (single-boiler systems
only)
1. Install the DHW tank temperature
sensor.
See installation instructions
for domestic hot water tank
Please note:
When installing the sensor in DHW
tanks of other makes, make sure
that the sensor is pressed against
the sensor well of the DHW tank by
means of a suitable device.
2. Ensure that the maximum
permissible domestic hot water
temperature is not exceeded. If
necessary, install a suitable safety
device for this purpose.
Heating systems without domestic hot
water heating
Do not connect the DHW tank
temperature sensor.
60 80 100 120
141 176 212 248
°C / °F
Electrical connection
See page 42.
The sensor measures the boiler
water temperature of the boiler.
The boiler temperature sensor is
installed at the same time as the
boiler insulation.
Check the sensor
1. Disconnect plug % in the
terminal compartment.
2. Measure resistance of sensor at
terminals "1" and "2" of the plug
or "2" and "3" (if a second DHW
tank temperature sensor is
connected).
DHW tank
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 + 170°C
- 4 to + 158°F
Electrical connection
The sensors are ready to plug in.
Insert the DHW temperature sensor
in socket "5" of the boiler control.
140
284
Installation
Resistance
in Ω Ω Ω Ω
578
597
616
51