Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 63

Sensor connection
(continued)
Strap-on temperature sensor and immersion temperature sensor
740
720
700
680
660
640
620
600
580
560
540
20 30 40
68 86 104
Supply temperature/return temperature in °C / °F
17A or 17B
17A or 17B
50 60 70 80 90
122 140 158 176 194 212
For measuring the return temperature.
Electrical connection
Connect in accordance with the
overview on page 58 and 59 and
the control panel wiring diagram.
Remove the plug from the sensor
cable.
Check the sensor
1. Disconnect the sensor from
2. Measure resistance of sensor at
3. Compare the value measured with
Technical data
Degree of protection: IP 32
Ambient temperature
100
Installation – Vitotronic 300-K, MW1S
terminals.
terminals "1" and "2" of the plug.
Flow/return Resistance
temperature in Ω Ω Ω Ω
in °C / °F
30 / 86 569
40 / 104 592
60 / 140 643
the current temperature. If the
value differs significantly, check
installation and, if necessary,
replace sensor.
during operation:
0 to + 100 °C
32 to + 212 °F
during storage and transport:
–20 to + 170 °C
- 4 to + 158 °F
63