Heat & Glo • 6X-AU Installation Manual • 2508-980 Rev. C
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Figure 9.1 Air Shutter
Air Shutter Settings
NG
LP
ULPG
6X-AU
5/8 in. (16 mm)
Fully Open
Fully Open
AIR SHUTTER
WING NUT
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.