Checking The Gas Supply Pressure - Wolf CGB-11 Installation Instructions Manual

Checking the gas supply pressure

Work on gas components MUST ONLY be pre-
formed by a registered gas fitter. Work which is
carried out incorrectly may lead to gas escaping,
resulting in a risk of explosion, asphyxiation or
poisoning.
• Switch OFF the gas fired boiler. Open the gas shut-off val-
ve.
• Pivot the control unit lid down.
Unlock the casing lid with the l.h. and r.h. rotating locks.
Release the lower part of the casing lid and unhook at the
top.
• To pivot the control unit, push in the tab on the r.h. side of
the thermomanometer using a screwdriver.
• Pivot the control unit out.
• Release the plug at test nipple
pipe.
• Connect the differential pressure meter to „+" at test port
Connect „-" against atmosphere
• Switch ON the ON/OFF switch.
• After starting the boiler, check the supply pressure at the
differential pressure gauge.
Natural gas:
NB
If the supply pressure lies outside the 18 to 25
mbar range, adjustments must not be carried
out and the boiler must not be taken into use.
LPG:
NB
If the supply pressure lies outside the 25 to 45
mbar range, adjustments must not be carried
out and the boiler must not be taken into use.
26
Checking the gas supply pressure

and vent the gas supply

.
Fig.: Open the rotating locks
Fig.: Push in the tab

Fig.: Check the gas supply pressure
rotating lock
Tab
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