Checking The Gas Supply Pressure - Wolf CGB-2 Series Installation Instructions For Contractors

Checking the gas supply pressure
For permissible values, see table "Gas catego-
ries and supply pressures".
Work on gas components must only be per-
formed by a licensed gas fitter. Work that is
carried out incorrectly may lead to gas escap-
ing, 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 B 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.
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 pressure test
nipple.
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, gas may
escape, leading to a risk of explosion, suffoca-
tion or poisoning.
60
29. Checking the gas supply pressure
Fig: Changing the gas type
Seite 19
B
Gas test connector
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