Heatilator • Novus NDV Series • 4055-187 Rev J • 08/09
39
C. Secure and Level the Appliance
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Prevent contact with:
• Sagging or loose insulation
• Insulation backing or plastic
• Framing and other combustible materials
Block openings into the chase to prevent entry of blown-
in insulation. Make sure insulation and other materials
are secured.
'2 127
notch the framing around the appliance
standoffs.
Failure to maintain air space clearance may cause
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Figure 9.12 Proper Positioning, Leveling And Securing of an Ap-
pliance
Nailing Flanges
(both sides)