9. Open the gas shut-off valve and
start up the boiler.
Danger
Gas escaping from the test
port leads to a risk of explo-
sion.
Check the test connector for
soundness.
Supply (flow)
pressure for nat-
ural gas
Supply (flow)
pressure for
LPG
Measures
below 17.4 mbar below 42.5 mbar Do not start the boiler. Notify your
mains gas or LPG supplier.
17.4 to 25 mbar 42.5 to 57.5 mbar Start the boiler.
above 25 mbar above 57.5 mbar Install a separate gas pressure gover-
nor upstream of the system and regu-
late the inlet pressure to 20 mbar for
natural gas or 50 mbar for LPG. Notify
your mains gas or LPG supplier.
Further details regarding the individual steps (cont.)
26
Commissioning, inspection, maintenance
5862 831 GB
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