Instructions / Assembly

®
System1738 Installation Methods 27
Air Intake
Distance above avg. snow fall or grade
Ref: local code requirements. Maintain
12" clearance above highest
anticipated snow level or grade
whichever is greater.
Exterior wall
System1738
Round Face Plate
1" Min, 2" Max
(From wall
or Face Plate)
Clamp or Strap
(Field Supplied)
Exhaust
Air Intake
Exhaust
12" Min
Clearance to Soffit
Figure 19: Typical Concentric Vent Side Wall Termination
Concentric Vent Kit Assembly
1. Once the installer has determined the termination
location, cut a hole in the roof or wall 1/2" larger
than the “C” dimension referenced in Table 5 for
the part being installed. The size of the hole can
vary greatly depending on the roof pitch.
2. As per the procedures outlined in this guide, solvent
weld the inner pipe to the concentric wye fitting.
3. Solvent weld the outer pipe to the concentric wye
fitting.
4. Slide the assembly through the roof or wall
penetration. (Install flashing if needed).
5. The outer pipe shall be only a friction fit with the
cap. To permanently affix the rain cap, apply
solvent cement to the inner pipe as per the
procedures outlined in this guide. For installations
where removal of the cap may be required for
service of the termination or cleaning the cap, it can
be fastened mechanically (drill location reference 5
in Figure 18).
6. Once the rain cap is installed, and the kit secured as
outlined below in Figure 18, the kit can be connected
to the venting system.