9
10.
Remove the pressure gauge and
seal test nipple
A
with screw.
11.
Open the gas shut-off valve and
check test nipple
A
for gas tight-
ness.
Danger
Gas escaping from the test
nipple leads to a risk of
explosion.
Check the test nipple for gas
tightness.
Supply pressure (flow pressure):
Action
Natural gas
LPG
Below 8 mbar
Below 27.7 mbar
■ Do not commission the boiler
■ Notify your gas supply utility or your
LPG supplier
8 to 25 mbar
27.7 to 57.5 mbar
Commission the boiler
Above 25 mbar
Above 57.5 mbar
■ Install a separate gas pressure gover-
nor upstream of the system
■ Setting the pre-charge pressure:
20 mbar for natural gas
30 mbar for LPG
■ Notify your gas supply utility or your
LPG supplier
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 699 GB
