Extension kit for heating circuit with mixer
Checking the rotational direction of the mixer motor
A
Rotational direction switch
B
ON/OFF switch "
8
"
1.
Switch the ON/OFF switch at the
motor first OFF and then ON again.
The device will carry out the follow-
ing self-test:
&
Mixer close (150 s)
&
Pump ON (10 s)
&
Mixer open (10 s)
&
Mixer close (10 s)
Then standard control mode
resumes.
2.
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 sense a higher temperature. If
the temperature falls, either the
motor is turning in the wrong direc-
tion or the mixer set is incorrectly
fitted.
Mixer installation instruc-
tions
3.
Adjust the rotational direction of the
mixer motor (if required).
&
Switch position I for central heat-
ing return from the left (delivered
condition).
&
Switch position II for central heat-
ing return from the right.
Repairs
(cont.)
90
Troubleshooting
5692
569
GB
Summary of Contents for Vitodens 300
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