Technical data

141
Components – Vitocontrol-S, VD2/CT3/CM2
Components from the parts list (continued)
LON communication module
The communication interruption will be displayed.
A Control unit or Vitocom 300
B Interconnecting cable for data
exchange between the control
units, Part No. 7143 495
C Terminators (standard delivery –
Vitocontrol-S, VD2/CT3/CM2)
D Slots for B and C
DHW tank temperature sensor
Connection
See page 77.
Check sensor
1. Remove plug %.
2. Check the sensor resistance of the
plug at terminals 1 and 2 or 2 and 3
(if a second DHW tank temperature
sensor has been connected).
DHW tank
temperature
in ˚C / ˚F
Resistance in Ω
ΩΩ
Ω
40 / 104
50 / 122
60 / 140
578
597
616
3. Compare measurement with the
actual temperature displayed (for
scanning, see page 109).
Check the installation and replace
sensor, if necessary, in case of
severe deviation.
Specification
Protection: IP 32
Permiss. ambient
temperature:
During operation:
0 to +90˚C
32 to 194˚F
During storage and transport:
–20 to +70˚C
–4 to 158˚F
5351 340 v1.4
D
B
B
C C
A AA
LON LON LON LON LON LON
Resistance in
0 20 40 60 80 100
540
560
580
600
620
640
660
680
700
720
DHW tank temperature in °C / °F
32 68 104 140 176 212