Installation Instructions

27
Gas condensing boiler
A
B
D
C
1. Connect the drain hose on shut-off
valve
A
to a drain.
2.
Close shut-off valve B.
3.
Open valves A, C and D and
flush at mains pressure, until no
sound of escaping air can be heard.
4.
First close valve A and then valves
C
and
D
.
5.
Adjust operating pressure ≥ 0.8 bar
with valves
C
and
D
.
6.
Open shut-off valve B.
7. Disconnect drain hose and put to one
side.
Changing 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 convert the gas type in the con-
trol unit.
Separate installation instruc-
tions.
Changing from LPG to natural gas - see
page 59.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service