Quadra-Fire • QFI30FB-IFT, QFI35FB-IFT Installation Manual • 2555-980 Rev. C • 9/18
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E. Air Shutter Setting
Air shutter settings should be adjusted by a qualified ser
-
vice technician at the time of installation.
The air shutter is
set at the factory for minimum vertical vent run. Adjust air
shutter for longer vertical runs. See Figure 9.1.
NOTICE:
If sooting occurs, provide more air by opening
the air shutter.
Figure 9.1 Air Shutter
Air Shutter Settings
NG
Propane
QFI30FB-IFT
1/4 in.
Full Open
QFI35FB-IFT
1/4 in.
Full Open
AIR SHUTTER