Viessmann VITOROND 100 Installation And Service Instructions Manual page 24

Connections
Safety Connections (Aquastat Control)
Fig. 19
24
(continued)
P
1. To avoid problems with removing the
top panel, we recommend moving the
top panel screw approximately 3" to
the left or right. To do so, pre-drill
1
the panel with an / " drill bit.
8
To reinstall the top panel, drill a new
1
/ " pilot hole through the top back
8
panel and into the back panel.
Reinstall the screw P into this new
mounting hole.