Instructions / Assembly

System 636 Installation Methods
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Concentric Vent Kit Assembly
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 in the System 636 Installation 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. To permanently affix the rain cap, it should be solvent welded to the inner pipe. For installations where removal of the cap may be
required for service or cleaning the cap, it can be fastened mechanically (drill location reference 5 in Figure 9). For either installation
method, the outer pipe is only a friction fit with the cap.
6. Once the rain cap is installed, and the kit secured as outlined below, the kit can be connected to the venting system.