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©2017 Hestan Commercial Corporation
17
EN
U-BURNER
LOCK SCREWAIR SHUTTER
AIR SHUTTER ADJUSTMENT
Remove the control panel to gain access to the orifice
area and air shutters on the burners. A metal cap at
the inlet of the burner called the “AIR SHUTTER”
regulates the amount of air that enters into the
burner for combustion (see Fig. 4). The air shutter
has a lock screw which must be loosened prior to
adjustment. Remove the burner carefully from the
grill. With a marker pen, mark the current location
of the shutter opening, then loosen the screw of the
air shutter. Reinstall the burner. Make certain that
the burners are sitting properly on the orifices taking
care not to move or damage the igniter electrodes.
Reinstall the radiant trays.
BURNER REMOVAL BEFORE AIR
SHUTTER ADJUSTMENT
Open your grill and remove the grates, radiant
trays, and burners from the firebox area.
U-burners are removed by lifting up the rear of
the burner, and carefully twisting to clear the
igniter shroud. Sear burners have a small metal
cover over the igniter which must be removed
first. There is also a screw at the rear firebox wall
which must be removed. The sear burner can
then be carefully removed using the same twisting
action to avoid breaking the ceramic igniter.
GAS CONNECTIONS
(continued)
SEAR BURNER
METAL COVER
IGNITER SHROUD
Light the burner and adjust as follows:
• Turn the valve on “HIGH”, light the burner and allow it to warm up for 10 minutes. Be careful because
the burner will be hot from this point forward.
• If the flame is yellow, indicating insufficient air, turn the air shutter counter-clockwise to allow more air
to the burner.
• If the flame is noisy and tends to lift away from the burner ports, indicating too much air, turn the air
shutter clockwise to reduce the amount of air to the burner.
• Once you have established a good flame, make a new mark with the marker pen.
• Remove the burner again and retighten the lock screw of the air shutter taking note of your newly
marked position.
• Repeat this process for each burner.
• Perform one last check that all burners are properly seated on their orifices and rear hanger bracket.
• Reinstall all radiant trays and cooking grates.
• Reinstall the control panel and control knobs.
VALVE ADJUSTMENTS
The valves on your Aspire grill are preset at the factory for optimum performance. However, the low
setting on these valves are adjustable if altitude, low-heat performance, converting from one gas to another,
or other factors indicate an adjustment is needed. It is not recommended to adjust the Rotisserie or Sear
Burner valves.
Figure 4
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