Viessmann VR1 22 Installation And Service Instructions Manual page 32

Burner Set-up
Electrical Connections (with Vitotronic control)
32
Vitorond 100, VR1 22 to 33, 91 to 140 Installation and Service
(continued)
Removing and installing top panel
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 the panel with an 1/8" drill bit.
To reinstall the top panel, drill a new 1/8" pilot hole
through the top back panel and into the back panel.
Reinstall the screw P into this new mounting hole.
Coding card
IMPORTANT
Only the boiler coding card supplied with the standard
equipment of the boiler may be used. The coding card
is enclosed in the accessory pack of the boiler.
1. Push boiler coding card through recess in the cover
and insert it into plug-in location "X7".
IMPORTANT
If the boiler coding card is not installed the following fault
code will be displayed on the boiler control: "
Applies to Vitotronic 200 KW2.
".
b7