Air Shutter Setting - Heatilator CRAVE4836-B Installation And Appliance Setup

F. Air Shutter Setting
Air shutter settings may be adjusted by a qualified install-
er 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 9.6.
• Refer to Gas Service Access instructions in Section 9.C
to access the air shutter.
• Loosen the 1/4 in. screw.
DETAIL
Figure 9.6 Air Shutter Location
Heatilator • CRAVE4836/ST-B, CRAVE6048/ST-B, CRAVE7260/ST-B, CRAVE8472/ST-B Installation Manual • 2301-973 Rev. H • 5/17
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• Twist shutter to adjust.
• Shutter may be open for longer horizontal vent runs.
• Do not close the air shutter more than 1/16 in. for NG or
1/4 in. for propane.
• Tighten the screw.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
Air Shutter Settings
CRAVE4836-B
CRAVE4836ST-B
CRAVE6048-B
CRAVE6048ST-B
Appliance-Standard
With Glass Refractory
Installed
With Log Kit Installed
CRAVE7260-B
CRAVE7260ST-B
Appliance-Standard
With Glass Refractory
Installed
With Log Kit Installed
CRAVE8472-B
CRAVE8472ST-B
Appliance-Standard
With Glass Refractory
Installed
With Log Kit Installed
NG Propane
3/16 in. Full Open
3/16 in. Full Open
1/4 in. Full Open
NG Propane
Full Open
3/8 in.
3/8 in. Full Open
3/8 in. Full Open
NG Propane
1/2 in. Full Open
1/2 in. Full Open
1/2 in. Full Open