Viessmann B0KA Installation And Service Instructions Manual page 16

Installation sequence
Mounting the boiler and making connections
Fig. 6
Note
The diagram shows installation on a pre-plumbing jig
for a gas condensing combi boiler.
The boiler can be installed on the following accesso-
ries:
■ Pre-plumbing jig
■ Mounting frame
■ Plumbing wall mounting frame
16
3 7
2.
3.
1. Replace gaskets.
2. Suspend the Vitodens from the wall mounting
(cont.)
3 7
1.
Internal gasket diameter:
Gas connection Ø 18.5 mm
■
Heating water side connections Ø 17.0 mm
■
Note
Gasket for gas connection is attached to the gas
shut-off valve.
bracket.
Note
After mounting, ensure correct seating.
4x
4.
5.
4x