46
GB
PRESSURE SETTING ADJUSTMENT
The fireplace should be pressure adjusted according
to the data sheets on page 55. “Inlet pressure” (supply
pressure to the GV60 Combination Valve) and “Burner
pressure” (nozzle pressure) must ALWAYS be measured
and, if necessary, corrected by an authorised installer.
1. Loosen the screw to the “Outlet pressure tap” on
the gas valve and connect a gas manometer.
2. Turn on the fireplace at maximum load – and let it
burn for 45 minutes before measuring.
3. Check that the measured pressure agrees with the
pressure stated on the information label.
4. The main burner pressure can be adjusted by
removing the plug for the “pressure regulator”.
5. Turn off the fireplace to minimum load.
6. The minimum burner pressure can be adjusted by
the screw “minimum rate orifice”.
7. After the pressure test is completed, retighten the
“pressure tap” screws. Check the system for gas
leaks.
The measured values must be within ± 10% of the
stated pressure. If this is not the case, contact the
supplier.
WARNING!
The pressure test and adjustment may only be performed by an authorised installer.
After the pressure test is completed and the gas manometer has been removed, re-tighten the “pressure tap” screws.
Check the system for gas leaks.
Manual knob
Pilot gas adjustment screw
Pressure regulator
(remove plug first)
Main valve knob
Minimum rate orifice
Magnet unit
INSTALLATION
BURNER PRESSURE
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INSTALLATION
