Technical data

69
Installation – Vitotronic 100, GC1
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 340 v1.4
2.
1.
3.
4.