Vulcan GHCB40C Manuel D'installation Et D'utilisation page 16

LIGHTING INSTRUCTIONS - MODELS HCB2
1. Remove burner box front cover and turn gas supply ON.
2. Place the ceramics, with the projections down, to the rear of broiler burners. The lugs on the
burners will properly position themselves. The ceramics are sized at the factory.
3. Turn the gas valve ON and allow air in the line to purge. When gas begins to flow, turn gas valve
OFF and wait 5 minutes before lighting the pilots. The pilot flame should be about
burner with a taper. The burner flame should be high enough to touch the ceramic bricks. The
length of the burner flame is determined by the adjustment of the burner nozzle. When the
burner flame is cold, the flame should appear as a sharp blue cone. As the flame gets hot, it
will soften in color and begin to curl around the ceramics. The sharpness of the flame is
controlled by the setting of the burner air shutter (Fig. 17).
Pilot Burner Adjustment
Turn the pilot burner valve (located in the lower compartment) ON. Each burner is provided with a
standing pilot burner. Adjust the pilot flame to approximately
valve is installed in the inlet of the pilot burner manifold, located behind the removable front panel above
the grid area.
Carbonization of Ceramics
If the ceramics take on a black sooty accumulation, the burners are receiving an insufficient amount
of air. Open the air shutters further to provide more air. If carbonization occurs during initial adjustment,
it will burn off as soon as proper adjustment is achieved.
Burner Performance
If, after a period of satisfactory operation, the burner flame characteristics should change or the length
of burner flame should be reduced, either the air mixer opening or the gas valve orifice has become
restricted. The burners should be cleaned every 60 days, or more often as required, by an authorized
servicer. This is not a warranty call.
Fig. 17
/ " (19 mm) flame height. The adjusting
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4
– 16 –
PL-41730
/ " high and
3
4