6 TC42.NG01
110505-8
Fig. # 13
Fig. # 12
PRIMARY AIR SHUTTER
BURNER FLAME ADJUSTMENT
The air shutter on the burner tube controls the primary combus-
tion air to the gas burner and is pre-set closed 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. #13 for proper fl ame pattern.
Open primary air shutter if the logs, glass, and fi rebox have
carbon accumulation and/or the fl ames are long, dark and
stringy. The shutter may also be opened to enhance the Ember
Material glow and lessen the fl ame height.
Caution: Burner area may be hot!
Turn off the fi replace and allow the unit to cool before pro-
ceeding.
To Adjust:
(See Fig. # 12)
1) Open and remove window frame and set aside. See
"Window Frame Removal" section found in the Installation
and Operating Instructions manual.
2) Remove the log set and set aside.
3) Loosen the screw in the Primary Air Shutter.
4) Rotate the shutter to increase or decrease the amount of
primary air.
The fl ame should be just orange and “lazy”. It should NEVER
be set to create sooting on internal parts and glass.
HERRINGBONE PANEL SET WITH OPTIONAL ANDIRONS SHOWN
