Install Instructions

20
3 General venting
Installation & Operation Manual
5. Dry  t vent or air piping to ensure proper  t up
before assembling any joint.  e pipe should go
a third to two-thirds into the  tting to ensure
proper sealing a er cement is applied.
6. Priming and Cementing:
a. Handle  ttings and pipes carefully to prevent
contamination of surfaces.
b. Apply a liberal even coat of primer to the  tting
socket and to the pipe end to approximately 1/2"
beyond the socket depth.
c. Apply a second primer coat to the  tting
socket.
d. While primer is still wet, apply an even coat of
approved cement to the pipe equal to the depth of
the  tting socket along with an even coat of
approved cement to the  tting socket.
e. Apply a second coat of cement to the pipe.
f. While the cement is still wet, insert the pipe into
the  tting, if possible twist the pipe a 1/4 turn as
you insert it. NOTE: If voids are present,
su cient cement was not applied and joint could
be defective.
g. Wipe excess cement from the joint removing
ring or beads as it will needlessly so en the
pipe.
Table 3H PVC/CPVC Vent Pipe and Fittings
Approved PVC/CPVC Vent Pipe and Fittings
Item Material Standard
Vent pipe
PVC Schedule 40, 80 ANSI/ASTM D1785
PVC - DWV ANSI/ASTM D2665
CPVC Schedule 40, 80 ANSI/ASTM F441
Vent fi ttings
PVC Schedule 40 ANSI/ASTM D2466
PVC Schedule 80 ANSI/ASTM D2467
CPVC Schedule 80 ANSI/ASTM F439
PVC - DWV ANSI/ASTM D2665
Pipe Cement /
Primer
PVC ANSI/ASTM D2564
CPVC ANSI/ASTM F493
NOTICE: DO NOT USE CELLULAR (FOAM) CORE PIPE
NOTE: In Canada, CPVC and PVC vent pipe,  ttings and cement/
primer must be ULC-S636 certi ed.
1. Work from the boiler to vent or air termination. Do not
exceed the lengths given in this manual for the air or vent
piping.
2. Cut pipe to the required lengths and deburr the inside
and outside of the pipe ends.
3. Chamfer outside of each pipe end to ensure even
cement distribution when joining.
4. Clean all pipe ends and  ttings using a clean dry rag.
(Moisture will retard curing and dirt or grease will prevent
adhesion.)
DIR #2000585151 00
*CPVC STREET ELBOW
MAY BE SUBSTITUTED
NOTE: WHEN USING A PVC/CPVC VENT SYSTEM,
THE FIRST CONNECTION TO THE APPLIANCE MUST
BE MADE WITH CPVC.
VENT
Figure 3-2 Near Boiler PVC/CPVC Venting - Models 400 - 1000