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TWIN PIPE VENTING GUIDE
Figure 19: Wall Termination
IPEX Concentric Vent Kit Assembly (System 636):
1) Once the proper location has been determined, cut a hole in the
roof or wall large enough to accommodate the outer pipe. The
size of the hole can vary greatly depending on the roof pitch.
2) As per the procedures outlined, solvent cement the inner pipe
to the concentric Wye fitting.
3) Solvent cement the outer pipe to the concentric Wye fitting.
4" (61 cm) min entre deux (2)
4) Slide the assembly through the roof or wall penetration. (Install
ousses d'évent concentrique
flashing as required)
5) To permanently affix the rain cap, it should be solvent cement-
ed to the inner pipe. For installations where removal of the cap-
may be required for service or for cleaning purposes, it can be
r la section «Exigences liées aux
gagements généraux» pour les
fastened mechanically (see instructions). For either installation
nts importants liés à l'emplacement
method, the outer pipe is only a friction fit with the cap.
ne terminaison d'évent sous un
fite (ventilé ou non), débord de toit
patio/balcon.
Figure 20: Roof Termination
concentrique
deux (2)
entrique
us
évu
MECHANICALLY FASTENED RAIN CAP:
The Rain Cap must be installed with the supplied Stainless Steel
screw and lock nut, and in accordance with the instructions and
diagram below.
1) Locate the drill location dimple on the outside of the rain cap.
2) At this location, drill through the cap and the inner pipe wall.
Ensure that the path of the hole is perpendicular to the inner
pipe NOT the outside of the cap. For the three (3) inch (7.6 cm)
kit, drill a 3/16'' (4.8 mm) hole, for the four (4) inch (10.2 cm)
kit, drill a 1/4'' (6.4 mm) hole. Clean any resulting debris.
3) Insert the screw and tighten. DO NOT OVER TIGHTEN.
Acceptable Venting Clearances For IPEX Concentric Vent
Kit (CVK) Termination:
Figure 21a: Two Or More Vent Terminals On Same Level
24'' (61 cm) MIN
Figure 21b: Vertical between Terminals
So t
Ceiling
CVK
60'' (1.5 m) MIN
to next CVK
12'' (30.5 cm) Above anticipated
snow level or grade
NOTE: Vent spacing depicted above are specific to IPEX PVC/
CPVC-FGV Concentric Vent Kit ONLY; for required spacing for all
other termination types, refer to Figures 24 thru 29.
22
to next CVK
Reference "General Clearance
Requirements" section for
important considerations for
locating vent termination under a
soffit (ventilated or unventilated),
eave, or deck/porch.
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