Heatilator • Caliber CD Series • 4040-263 Rev N • 11/08 41
Nailing Flanges
(both sides)
B. Secure and Level the Appliance
WARNING! Risk of Fire! 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.
DO NOT notch the framing around the appliance
standoffs.
Failure to maintain air space clearance may cause
overheating and fi re.
The diagram shows how to properly position, level, and se-
cure the appliance (see Figure 9.20). Nailing tabs are pro-
vided to secure the appliance to the framing members.
• Bend out nailing tabs on each side.
• Place the appliance into position.
• Keep nailing tabs fl ush with the framing.
• Level the appliance from side to side and front to
back.
• Shim the appliance as necessary. It is acceptable to
use wood shims underneath the appliance.
• Secure the appliance to the framing by using nails or
screws through the nailing tabs.
• Secure the appliance to the fl oor by inserting two screws
through the pilot holes at the bottom of the appliance.
Figure 9.20 Proper Positioning, Leveling And Securing Of An
Appliance