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4.2.1 HORIZONTAL AIR TERMINAL INSTALLATION
Stretch the inner fl ex pipe to the required
A.
length needed for the fi nished wall surface.
Apply a heavy bead of high temperature
sealant W573-0007 Mill Pac (not supplied)
to the inner sleeve of the air terminal. Slip
the vent pipe a minimum of 2" over the inner
sleeve of the air terminal and secure with 3
#8 screws.
Using the outer fl ex pipe, slide over the outer
B.
combustion air sleeve of the air terminal
and secure with 3 #8 screws. Seal using
high temperature sealant W573-0002 (not
supplied).
Insert the vent pipes through the fi restop
C.
maintaining the required clearance to
combustibles. 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).
If more vent pipe needs to be used to reach
D.
f i r e - p a r t s . c o m
the fi replace, couple them together as
illustrated. The vent system must be supported
approximately every 3 feet for both vertical and
horizontal runs. Use noncombustible strapping
to maintain the minimum 1" 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.
All manuals and user guides at all-guides.com
#10x2"
SCREWS
CAULKING
2" OVERLAP
#8 X 1/2" SELF DRILLING
HI-TEMP
SCREWS & WASHERS
SEALANT
OUTER
FLEX PIPE
21
OUTER FLEX
PIPE
INNER FLEX
PIPE
HI-TEMP
SEALANT
INNER COUPLER
OUTER COUPLER
OUTER
FLEX PIPE
INNER
FLEX PIPE
23.3A
W415-1028 / A / 08.13.12
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