Viessmann VITODENS 100-W Manual page 45

Commissioning and testing
(Fortsetzung)
2. Pivot down control unit A.
3. Remove 2 screws and remove
cover panel B.
4. Release the screw inside test nip-
ple IN C on the gas combination
valve , but do not remove, and
connect the pressure gauge.
5. Open the gas shut-off valve.
6. Check the static pressure; it
should be 20 mbar +/- 1 mbar.
7. Switch on mains voltage and start
up the boiler.
Hinweis
During commissioning, the boiler
can enter a fault state because of
airlocks in the gas pipe.
To reset press U key. The ignition
procedure will then be repeated.
Montageablauf
45