Instructions / Assembly
®
System1738 Installation Methods 25
Universal Concentric Vent Kit (UCVK
TM
) Assembly
1.  Ensure that the Universal Concentric Vent Kit is 
configured to fit your venting system by following 
the instructions outlined with the Configuration 
guide.
2.  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 6 for the 
part being installed.
3.  As per the procedures outlined in the System 1738 
Installation Guide, solvent weld the inner pipe to the 
internal 3" reducer elbow.
4.  Solvent weld the outer pipe to the pipe socket.
5.  Slide the pipe assembly through the roof or wall 
penetration. (Install flashing if needed).
6.  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 vent, it 
can be fastened mechanically.
7.  Once the rain cap is installed, and the kit secured 
as outlined, the kit can be solvent welded to the 
appliance.
8.  Vertical pipe lengths to accommodate the 
termination height of the Universal Concentric 
Vent Kit Unit are field supplied. Additional venting 
accessories such as vent screens are sold 
separately.










