Viessmann VITOLADENS 300-C Service Instructions Manual page 77

Hide thumbs Also See for VITOLADENS 300-C:

Table of Contents

Repairs

(cont.)

Extension kit for heating circuit with mixer

Checking the rotational direction of the mixer motor

1. Switch ON/OFF switch A at the

extension kit first OFF and then ON

again. The device will carry out the

following self-test:

Mixer "Close" (150 s)

Pump "ON" (10 s)

Mixer "Open" (10 s)

Mixer "Close" (10 s)

Then standard control mode

resumes.

Changing the rotational direction of the mixer motor (if required)

Danger

An electric shock can be life-threatening.

Before opening the equipment, switch OFF the ON/OFF switch and

mains voltage, for example at the fuse or the main isolator.

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 capture a higher temperature.

If the temperature drops, either the

motor is turning in the wrong direc-

tion or the mixer set is incorrectly

fitted.

Mixer installation instruc-

tions

Troubleshooting

Table of Contents

Chapters

Table of Contents

Vc3