Opening The Control Unit - Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual

Vitotronic 100, GC1B Installation and Service

Opening the Control Unit

1. Remove the junction box cover screws and
remove the cover.
2. Remove the front housing screws.
3. Swing up the front part of the control housing.
4. Position the stay bar so that it supports the front
housing.
Control Unit Installation
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