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Majestic • MERC32IN, MERC32IL, MERC32VN, MERC32VL Installation Manual • 2401-980 Rev. C • 11/16
E. Air Shutter Setting
Air shutter settings should be adjusted by a quali
fi
ed in-
staller at the time of installation. The air shutter is set at
the factory for minimum vertical vent run. Adjust air shut-
ter for longer vertical runs.
NOTICE:
If sooting occurs, provide more air by opening
the air shutter.
Air Shutter Settings
Model
Gas Type
Setting
MERC32IN
NG
3/16 in.
MERC32IL
Propane
1/2 in.
MERC32VN
NG
3/16 in.
MERD32VL
Propane
1/2 in.