Napoleon BGD42N, Installation And Operating Instructions Manual

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17
W415-0777 / 03.02.09
3.0 INSTALLATION
!
WARNING
Do not fill the space between the vent pipe and enclosure with any type of material. Do not pack insulation or
combustibles between ceiling firestops. Always maintain specified clearances around venting and firestop
systems. Install wall shields and firestops as specified. Failure to keep insulation or other materials away from
vent pipe may cause fire.
3.1 WALL AND CEILING PROTECTION
3.1.1 HORIZONTAL INSTALLATION
This application occurs when venting through an exterior wall. Having
determined the correct height for the air terminal location, cut and frame
a hole in the exterior wall as illustrated to accommodate the
fi restop
assembly.
The length of the vent shield may be cut shorter for
combustible walls that are less than 8 1/2” thick but
the vent shield must extend the full depth of the
combustible wall.
A. Apply a bead of caulking (not supplied) all around and
place the fi restop top, so that the vent shield covers the
top of the vent within the opening.
B. Place the fi restop bottom against the fi restop top and secure the
two together. Adjust the assembly to ensure it is tight to the vent.
Secure
fi restop to wall. This restricts cold air from being drawn
into the room or around the appliance. Ensure that both spacer
and shield maintain the required clearance to combustibles.
Once the vent pipe is installed in its
fi nal position,
apply sealant W573-0002 (not supplied) between
the vent pipe and the
fi restop spacer as illustrated.
DETERMINE
THE
CORRECT
HEIGHT
FIRESTOP
SPACER
FINISHING
MATERIAL
CAULKING
CAULKING
20.3
VENT
SHIELD
FIRESTOP
BOTTOM
FIRESTOP
TOP
16 1/4"
14 7/16"
!
WARNING
The firestop assembly must be installed with the vent shield to the top.
Do not fill the cavity between the pipe and the framing with any type of material.
Terminals must not be recessed into a wall or siding more than the depth of the return flange of the
mounting plate.
FIGURE 3.1.1a
FIGURE 3.1.1b
FIGURE 3.1.1b
For clearance to combustible materials from the vent pipe, see “FRAMING” section.