Technical data

79
Installation – Vitocontrol-S, VD2/CT3/CM2
Sensor connection (continued)
Strap-on temperature sensor and immersion temperature sensor
For measuring the supply temperature.
Electrical connection
The sensor is inserted in socket ? on
the control unit.
Check the sensor
1. Disconnect plug ? in the terminal
compartment.
2. Measure resistance of sensor at
terminal ”2” of the plug.
Flow/return
temperature
in °C / °F
Resistance
in Ω
ΩΩ
Ω
30 / 86
40 / 104
60 / 140
569
592
643
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 + 100°C
32 to + 212°F
During storage and transport:
–20 to + 170°C
- 4 to + 158°F
5351 340 v1.4
2
30 40 50 60 70 80 90
540
560
580
600
620
640
660
680
700
720
740
20 100
Resistance in
Ω
Ω Ω
Ω
Supply temperature/return temperature in °C / °F
68 86 104 122 140 158 176 194 212