Horizontal Air Terminal Installation; Vertical Installation - Napoleon WHD31P Manuel D'installation Et D'opération

3.2.2 horizontal air terminal installation

A.
Stretch the inner fl ex pipe to the required length taking into
account the additional length needed for the fi nished wall
surface. Slip the vent pipe a minimum of 2" (50.8mm)
over the inner sleeve of the air terminal and secure
with a minimum of 3 #8 screws. Apply a heavy bead
of Mill Pac sealant (W573-0007) (not supplied).
B.
Using the outer fl ex pipe, slide over the outer
combustion air sleeve of the air terminal and secure with
a minimum of 3 #8 screws. Seal using red RTV silicone
(W573-0002) (not supplied).
C.
Holding the air terminal (lettering in an upright, readable
position), secure to the exterior wall and make weather
tight by sealing with caulking (not supplied).
D.
If more vent pipe needs to be used to reach the fi replace,
couple them together as illustrated. The vent system must
be supported approximately every 3 feet (0.9m) for both
vertical and horizontal runs. Use noncombustible strapping
to maintain the minimum clearance to combustibles.
The air terminal mounting plate may be recessed into the
exterior wall or siding no greater than the depth of its return fl ange.

3.2.3 vertical installation

This application occurs when venting through a roof. Installation kits for
various roof pitches are available from your authorized dealer / distributor.
See the "accessories" section to order specifi c kits required.
A. Determine the air terminal location, cut and frame a square opening,
as illustrated, in the ceiling and the roof to provide the minimum 1"
(25mm) clearance between the vent pipe and any combustible material.
Try to center the vent pipe location midway between two joists to
prevent having to cut them. Use a plumb bob to line up the center of
the openings. A vent pipe shield will prevent any materials such as
insulation, from fi lling up the 1" (25mm) air space around the pipe. Nail
headers between the joist for extra support.
B. Apply a bead of caulking (not supplied) to the framework or to the
Wolf Steel vent pipe shield plate or equivalent (in the case of a fi nished
ceiling), and secure over the opening in the ceiling. A fi restop must be
placed on the bottom of each framed opening in a roof or ceiling that
the venting system passes through. Apply a bead of caulking all around
and place a fi restop spacer over the vent shield to restrict cold air from
being drawn into the room or around the fi replace. Ensure that both
spacer and shield maintain the required clearance to combustibles.
Once the vent pipe is installed in its fi nal position, apply red RTV
silicone (W573-0002) (not supplied) between the pipe and the fi restop
assembly.
C. In the attic, slide the vent pipe collar down to cover up the open end
of the shield and tighten. This will prevent any materials, such as
insulation, from fi lling up the 1" (25mm) air space around the pipe.
venting installation
CAULKING
2" (50.8mm) OVERLAP
HIGH TEMPERATURE
SCREWS
(SUPPLIED)
Screws
Hi-Temp Sealant
Outer Flex
Inner Flex
Pipe
Pipe
23.9B
Vent Pipe
Shield
Shield
16.5A
EN
OUTER FLEX PIPE
SEALANT
HI-TEMP
Inner Coupler
Outer Coupler SEALAN
Outer Flex
Pipe
8" (203mm)
8"
Firestop
(203mm)
underside
of joist
Caulking
Vent
Pipe
Collar
Vent
Pipe
21
W415-1337 / B / 09.25.18