Rinnai ru80i Installation And Operation Manual page 33

Cer fied PVC/CPVC Vent Termina on Op ons (con nued)
To prevent possibility of condensate freeze-up, do not
install vent kits one above the other. Once the vent
terminal loca on has been determined, make holes
through the exterior wall to accommodate the vent pipes.
Vent pipes must exit exterior wall horizontally only.
Pitched Roof Termina on Clearances:
Exhaust Vent
Combus on Air
12" above
roof or
an cipated
Ver cal Termina on of U-Vent and Combus on Air
Pipe on a Pitched Roof
DO NOT use lubricant between two PVC/CPVC components.
Refer to cement manufacturer instruc on for specific
instruc ons and handling.
Basic Instruc ons for Cemen ng Joints:
1. Cut pipe end square; smooth out jagged edges and
burrs. Chamfer end of pipe; then clean fi ng socket
and pipe joint area of all dirt, grease, or moisture.
2. A er checking pipe and socket for proper fit, wipe
socket and pipe with cleaner-primer. Apply a
liberal coat of primer to inside surface of socket and
outside of pipe.
NOTE
12" min
12" min
NOTE
3. Apply a thin coat of cement evenly in the socket.
Quickly apply a heavy coat of cement to the pipe and
insert pipe into fi ng with a slight twis ng mo on
un l it bo oms out.
4. Hold the pipe fi ng for 30 seconds to prevent the
tapered socket from pushing the pipe out of the fi ng.
5. Wipe all excess cement from the joint with a rag. Allow
15 minutes before handling. Cure me will vary
according to fit, temperature, and Humidity
KB Series Manual 33