Air Shutter Setting - Majestic DBDV36IN Installation Manual

E. Air Shutter Setting
Air shutter settings should be adjusted by a qualifi ed 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 wing nut to the right to open the air shutter.
• Move the wing nut to the left to close the air shutter.
• Tighten the wing nut.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
Note: Adjust air shutter after fl ame has reached full
maturity (approximately 20-40 minutes).
AIR SHUTTER
WING NUT
Figure 9.1 Air Shutter
Air Shutter Settings (Factory Set to Minimum Vent Run
MODEL GAS TYPE
DBDV36IN NG
DBDV36IL PROPANE
DBDV42IN NG
DBDV42IL PROPANE
Minimum and maximum shutter settings are set up to appear like Figure 4.18.
• Minimum vent run consists of enough horizontal vent pipe to exit 2 X 6 wall construction (approximately 8 inches).
• Maximum vent run consists of "H Maximum" on Figure 4.18.
Note: All vent runs may need to be evaluated for ideal shutter settings. Shutter distances may vary due to vent run, fuel
quality, and elevation.
Majestic • DBDV36IN, DBDV36IL, DBDV42IN, DBDV42IL Installation Manual • 2397-980 Rev. B • 5/16
48
MIN. VENT RUN MAX. VENT RUN
1/8 in. Full Open
3/8 in. Full Open
5/16 in. Full Open
3/8 in. Full Open