Viessmann VITODENS 242-F Installation And Service Instructions Manual page 149

Repair
(cont.)
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
insert 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, e.g. at the fuse or the
mains isolator.
2. At plug gS, swap the cores at termi-
nals "|" and "~".
3. Refit the casing cover.
Troubleshooting
149