Operating instructions

125
Checking the rotational direction of
the mixer motor
After being switched ON, the boiler
implements a self-test. During this, the
mixer is opened and closed again.
Note the rotational direction of the mixer
motor during its self-test.
Then set the mixer manually to "Open"
again.
Note
The flow temperature sensor must now
capture a higher temperature. If the tem-
perature drops, either the motor is turn-
ing in the wrong direction or the mixer set
is incorrectly fitted.
Mixer installation instructions
Changing the rotational direction of the mixer motor (if required)
gS
BU
|
~
1. Remove the upper casing cover of
the extension kit.
Danger
An electric shock can be life-
threatening.
Before opening the boiler, dis-
connect from the mains volt-
age, for example at the fuse or
the main isolator.
2.
At plug gS, swap the cores at termi-
nals "
|
" and "
~
".
3. Refit the casing cover.
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 page 57).
Troubleshooting
Repairs
(cont.)
5457 552 GB
Service