Viessmann Vitodens 100 WB1A Installation And Service Instructions Manual page 67

Routine Servicing Instructions
Checking function of all safety valves
Checking tightness of electrical connections
Checking static and supply pressure
See page 51.
Front panel installation
1. Hang the front panel to the wall
mounting frame by the appropriate
hook.
Service Instructions
(cont.)
2. Press down the front panel at the
bottom.
67