115
Extension kit for heating circuit with mixer
Checking the setting of rotary selec-
tor S1
The rotary selector on the PCB of the
extension kit defines the assignment to
the relevant heating circuit.
Heating circuit
Rotary
selector S1
setting
Heating circuit with
mixer M2 (heating cir-
cuit 2)
2
2 3 4
5
6
10
9 8 7
Heating circuit with
mixer M3 (heating cir-
cuit 3)
4
4
2 3
5
6
10
9 8 7
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 "
~
".
Troubleshooting
Repairs
(cont.)
5692 843 GB
Summary of Contents for Vitodens 200 WB2C 45
Page 147: ...147 5692 843 GB...
