Heatilator • Novus NDV Series • 4055-187 Rev J • 08/09
35
C. Install the Ceiling Firestop
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pack insu-
lation around the vent. Insulation must be kept
back from the pipe to prevent overheating.
Figure 8.3 Installing Ceiling Firestop
Figure 8.4 Installing the Attic Shield
3 FASTENERS
PER SIDE
INSTALL ATTIC INSULATION SHIELDS
BEFORE OR AFTER INSTALLATION OF VENT SYSTEM
CEILING FIRESTOP
INSTALLED BELOW CEILING
CEILING FIRESTOP
INSTALLED ABOVE CEILING
ATTIC ABOVE
A
PIPE
DVP
SLP
A
10 in. (254 mm)
9 in. (229 mm)
A