80
Changing the rotational direction of the mixer motor (if required)
gS
BU
|
~
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 k
Ω
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
