Rotational Direction Of The Mixer Motor - Viessmann EM-M1 Installation And Service Instructions Manual

Commissioning
(cont.)

Rotational direction of the mixer motor

Checking the rotational direction of the mixer motor
After being switched on, the appliance implements a
self-test. During this, the mixer is opened and closed
again.
Changing the rotational direction of the mixer motor (if required)
gS
|
BU
~
Fig. 19
Observe the rotational direction of the mixer motor dur-
ing its self-test.
Then manually set the mixer to "OPEN".
Note
The flow temperature must now rise. If the temperature
drops, either the motor is turning in the wrong direction
or the mixer insert is incorrectly fitted.
Mixer installation instructions
1. Remove the top casing cover of the mixer exten-
sion kit.
Danger
An electric shock can be life threatening.
Switch OFF the power supply before open-
ing the appliance. For example, remove the
fuse or switch off a mains isolator.
2. At plug , swap the cores at terminals " " and " ".
gS
3. Refit the casing cover.
Installation sequence
17