040705-8
TC36.NG03 5
Fig. # 15
Fig. # 16
PRIMARY AIR SHUTTER
(shown in open position for propane)
BURNER FLAME ADJUSTMENT
The air shutter at the end of the burner inlet tube controls
the primary combustion air to the gas burner and is preset
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. #15 for proper
fl ame pattern.
Open primary air shutter 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 pro-
ceeding.
To Adjust:
(See Fig. # 16)
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 lower rear panel and set aside.
3) Loosen the screw securing the primary air shutter.
4) Rotate the shutter to increase or decrease the amount of
primary air.
5) Re-tighten the primary air shutter.
The fl ame should be just orange and “lazy”. It should NEVER
be set to create sooting on internal parts and window glass.
Summary of Contents for TC36.NG03
Page 7: ...040705 8 TC36 NG03 7 NOTES...
