Gas Connection - Viessmann Vitodens 050-W Installation And Service Instructions Manual

Mounting the boiler and making the connections

Gas connection

1. Fit the the gas shut-off valve with
bend to connection A.
2. Connect the gas supply to connection
A.
A
¨
3. Carry out a tightness test.
Note
Only use suitable and approved leak
detection agents (EN 14291) and
devices for the tightness test. Leak
detection agents with unsuitable con-
stituents (e.g. nitrides, sulphides) can
cause material damage.
Remove leak detection agent resi-
dues after testing.
Installation sequence
(cont.)
15