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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.
• Loosen the wing nut.
• Move the air handle to the left to open the air shutter.
• Move the air handle to the right to close the air shutter.
• Tighten the wing nut.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
Figure 9.1 Air Shutter
Air Shutter Settings
6000
8000
52
AIR SHUTTER
WING NUT
NG
Propane
1/4 in.
Fully Open
5/16 in.
Fully Open
Heat & Glo • 6000CL-IFT, 8000CL-IFT Installation Manual • 2504-980 Rev. Q • 11/21
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