Viessmann VITOTRONIC 100 GC1B Service Manual Page 38

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Installation
38
Opening the Control Unit (VD2/VD2A/CT3 only)
1. Remove the cover of the
connection enclosure.
2. Unscrew the screws from the
front housing.
3. Swing up the front part of the
control housing.
4. Position the stay bar so that it
supports the front housing.
5351 338 v1.6
4.
3.
1.
2.
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