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Commissioning, inspection, maintenance
Further details regarding the individual steps
Yes
Ionisation cur-
rent builds
(higher than
2 µA)
Symbol A
Yes
Burner in opera-
No
tion
For further details regarding faults, see page 71.
Checking the static and supply pressure
Danger
CO build-up as a result of an incorrect burner setup can have serious
health implications.
Carry out a CO test prior to and after work on gas equipment.
Operation with LPG
Flush the LPG tank twice during commissioning/replacement. Thoroughly vent
the tank and gas supply lines after flushing.
14
Fault F4
No
Stops below the
set boiler water
temperature and
restarts immedi-
ately
(cont.)
Check the ionisa-
tion current,
check the elec-
trode adjustment
and the gas pipe
for airlocks.
Check the flue
gas system for
soundness (flue
gas recirculation),
check the gas
flow pressure
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