Viessmann Vitotronic 200 KW2 Installation And Service Instructions Manual page 74

Components
Room temperature sensor,
600
590
580
570
560
550
540
530
520
510
500
0 5 10 15 20 25 30 35 40
Room temperature in ºC
74
part no. 7408 012 (cont.)
Checking room temperature sensor
1. Disconnect the wires from the
sensor.
2. Check the sensor resistance at
terminals 9 and 13b.
3. Compare the measurement with
the actual temperature (for
scanning, see page 31).
Check the installation and replace
sensor, if necessary, in case of
severe deviation.
Specification
Protection:
Permiss. ambient
temperature
H in operation:
H during storage
and transport:
IP 30
0 to + 40 ºC
20 to + 65 ºC