80
Changing the rotational direction of the mixer motor (if required)
Fig. 42
1. Remove the upper casing cover of the extension
kit.
Danger
An electric shock can be life-threatening.
Before opening the boiler, disconnect it from
the mains voltage, e.g. at the fuse or mains
isolator.
2.
At plug
gS
, swap the cores at terminals "|" and
"
~
".
3. Refit the casing cover.
Check flow temperature sensor
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance in kΩ
Fig. 43 Sensor type: NTC 10 kΩ
1.
Disconnect plug
?
(flow temperature sensor).
2. Check the sensor resistance and compare it to the
curve.
In the event of severe deviation replace the sensor.
Checking the Vitotronic 200-H (accessories)
The Vitotronic 200-H is connected to the control unit
via the LON cable. To test the connection, carry out a
subscriber check at the boiler control unit (see from
page 33).
Maintenance
Mixer extension kit (cont.)
5839829
Maintenance
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