Checking The Gas Supply Pressure - Wolf FGB-K Series Installation And Maintenance Instructions For Contractors

Checking the gas supply pressure

For permissible values, see table "Gas
categories and supply pressures".
Work on gas components must only be
performed by a licensed gas fitter. Work
that is carried out incorrectly may lead
to gas escaping, resulting in a risk of
explosion, suffocation or poisoning.
1. The gas boiler must be switched OFF. Close the
gas ball valve.
2. Loosen screw C on the gas test connector of the
gas combination valve with a screwdriver. Do not
remove the screw.
3. Connect the pressure gauge.
4. Open the gas ball valve.
5. Switch the gas condensing boiler ON by pressing
button 5.
If the appliance is connected to a BM-2, the
operating mode key is disabled. The BM-2
takes over this function.
6. After the boiler has started, read the supply
pressure on the pressure gauge and enter it in the
commissioning report.
7. Turn OFF the boiler, close the gas ball valve,
remove the pressure gauge and tighten the screw
in the gas test connector.
8. Open the gas ball valve.
9. Check the gas test connector on the gas
combination valve for tightness.
10. Complete the enclosed notice and affix it to the
inside of the casing.
11. Close the boiler.
If any screws are not fully tightened,
there is a danger of gas escaping, leading
to a risk of explosion, suffocation or
poisoning.
3064458_201811
22. Checking the gas supply pressure
Fig: Changing the gas supply pressure
Fig: Control unit buttons
C
Gas test connector
5
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