Replacing The Control Unit - Viessmann Vitodens 100-W Installation Instructions Manual

Replacing the control unit

!
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charge.
4.
3.
1. Push in the side locking tabs.
2. Pivot control unit forward.
3. Remove the cover.
4. Pull all plugs from the control unit.
2
5.
2.
4x
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
7.
6.
5. Push in the side locking tabs and
remove the pressure gauge from the
control unit casing.
6. Undo both screws on the hinges and
remove the control unit.
1.
2x