7.
Take the action shown in the fol-
lowing table.
Supply (flow)
pressure for nat-
ural gas
Supply (flow)
pressure for
LPG (at 50 mbar
flow pressure)
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.
in excess of
25 mbar
in excess of
57.5 mbar
Install a separate gas governor down-
stream of the system and regulate the
pressure to 20 mbar for natural gas or
50 mbar for LPG.
Notify your mains gas or LPG supplier.
8.
Switch OFF the control unit ON/
OFF switch (the boiler shuts
down).
9.
Close the gas shut
‐
off valve.
10.
Remove the pressure gauge and
seal the test connector with the
screw previously removed.
11.
Open the gas shut
‐
off valve and
check the test connector for
soundness.
Danger
Gas escaping from the test
connector leads to a risk of
explosion.
Check the test connector
for soundness.
Further details regarding the individual steps
(cont.)
9
Initial start-up, inspection, maintenance
5692
647
GB
Summary of Contents for GS1B
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