Converting To Operation With Lpg - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Further details regarding the individual steps
Gas condensing boiler
A
D C

Converting to operation with LPG

In the delivered condition, the boiler is
set up for operation with natural gas. For
operation with LPG, change the gas noz-
zle and switch to the correct gas type in
the control unit.
Commissioning, inspection, maintenance
1. Connect the drain hose on shut-off
2. Close shut-off valve B.
3. Open valves A, C and D and
4. First close valve A and then valves
5. Adjust the operating pressure
6. Open shut-off valve B.
7. Disconnect drain hose and keep
B
Conversion from LPG to natural gas, see
page 76.
(cont.)
valve A to a drain.
flush at mains pressure, until no
sound of escaping air can be heard.
C and D.
≥ 0.8 bar (80 kPa) with valves C and
D.
safe.
Separate installation instruc-
tions.
33