
TC36.NGST03C 031111-20
17
Burner Flame Adjustment
The air shutter on the burner tube controls the primary
combustion air. It is set to the closed position at the
factory for natural gas fuel. Some adjustment may be
necessary to obtain desired fl ame and to eliminate
carbon deposits. Evaluate fl ame appearance after the
fi replace has reached operating temperature. See Fig.
#31 for proper fl ame pattern.
Open primary air if the window glass and fi rebox have
carbon accumulation and/or the fl ames are long, dark
and stringy. The shutter may also be opened to lessen
the fl ame height.
CAUTION:
Burner area may be hot!
Turn off the fi replace and allow the unit to cool
before proceeding.
To adjust:
(See Fig. #32)
Push the shutter control rod to increase the amount of
primary air to create a more blue fl ame.
Pull the shutter to decrease the amount of primary air to
create a more yellow fl ame.
NOTE:
Proper air shutter setting is required.
The fl ame should be just orange and “lazy”. It should
NEVER be set to create sooting on internal parts and
window glass.
Fig #31
Fig #32
Содержание TC36.NGST03C
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