Checking The Static And Supply Pressure - Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual

Further details regarding the individual steps
For further details regarding faults,
see page 92.

Checking the static and supply pressure

Danger
Higher CO emissions can lead to poisoning.
Check the CO emissions before and after any work on gas appliances, to
prevent any health hazards and to ensure the perfect operational condi-
tion of the system.
Operation with LPG
Flush the LPG tank twice during commissioning/replacement. Thoroughly vent
the tank and gas supply lines after flushing.
Commissioning, inspection, maintenance
(cont.)
1. Close the gas shut-off valve.
2. Undo the screw inside test connec-
tor "PE"A at the gas train but do
not remove it, and connect the
pressure gauge.
3. Open the gas shut-off valve.
4. Check the static pressure; it should
be a max. of 57.5 mbar. Record the
actual value in the service report.
5. Start the compact boiler.
Note
During commissioning, the boiler
can enter a fault state because of
airlocks in the gas pipe. After
approx. 5 s, press "E RESET" to
reset the burner.
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