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Diameter
PVC Sch 40
1 1/2--- in.
38--- mm
2--- in.
51--- mm
2 1/2--- in.
64--- mm
3--- in.
76--- mm
4--- in.
NOTICE
The following instructions are for PVC/ABS DWV vent
piping only. DO NOT USE THESE TECHNIQUES FOR
POLYPROPYLENE VENT PIPING SYSTEMS.
polypropylene vent system manufacturer's instructions for
installing polypropylene venting systems.
Install the remaining vent and combustion air pipes as shown
below. It is recommended that all pipes be cut, prepared, and
pre- -assembled before permanently cementing any joint.
1. Working from furnace to outside, cut pipe to required
length(s).
2. De- -burr inside and outside of pipe.
3. Chamfer outside edge of pipe for better distribution of
primer and cement.
4. Complete the vent and combustion air pipe installation by
connecting the concentric vent or by installing the required
termination elbows as shown in Figs. 53, 54 and 55.
For Ventilated Combustion Air Termination, See Fig. 56.
5. Clean and dry all surfaces to be joined.
6. Check dry fit of pipe and mark insertion depth on pipe.
46
TABS ON THE INDUCER OUTLET RESTRICTOR SNAP
INTO THE SLOTS AT THE OUTLET OF THE INDUCER
SEE MAXIMUM EQUIVALENT VENT LENGTH TABLE
Fig. 43 - - Inducer Vent Elbow
Table 13 – Hanger Spacing
SDR 21 & 26
3--- ft.
2 1/2--- ft.
914--- mm
762--- mm
3--- ft.
3--- ft.
914--- mm
914--- mm
3 1/2--- ft.
3--- ft.
1067--- mm
914--- mm
3 1/2--- ft.
3--- ft.
1067--- mm
914--- mm
4--- ft.
3 1/2--- ft.
See the
Specifications subject to change without notice.
FOR USAGE:
(10FT. (3.1 M) OF VENT OR LESS ONLY)
Material
ABS
3--- ft.
914--- mm
3--- ft.
914--- mm
3 1/2--- ft.
1067--- mm
3 1/2--- ft.
1067--- mm
4--- ft.
7. Insert the vent pipe into the vent elbow.
8. Torque clamp on vent elbow 15 lb- -in.
9. Torque clamp on vent coupling 15 lb- -in.
10. Insert the combustion air pipe into the adapter.
11. Pilot drill a screw hole through the adapter into the combus-
tion air pipe and secure the pipe to the adapter with sheet
metal screws. DO NOT DRILL INTO POLYPROPYL-
ENE VENT PIPES. Use an optional accessory vent coup-
ling, if needed.
12. Seal around the combustion air pipe with silicone or foil
tape. SILICONE SEALERS MAY NOT BE APPRO-
PRIATE FOR POLYPROPYLENE VENT SYSTEMS.
SEE POLYPROPYLENE VENT SYSTEM MANU-
FACTURER'S INSTRUCTIONS.
13. After pipes have been cut and pre- -assembled, apply gener-
ous layer of cement primer to pipe fitting socket and end of
pipe to insertion mark. Quickly apply approved cement to
end of pipe and fitting socket (over primer). Apply cement
in a light, uniform coat on inside of socket to prevent
buildup of excess cement. Apply second coat. DO NOT
CEMENT POLYPROPYLENE FITTINGS.
14. While cement is still wet, twist pipe into socket with 1/4- -in.
turn. Be sure pipe is fully inserted into fitting socket.
CPVC
Polypropylene
3--- ft.
3.25--- ft.
914--- mm
1000 mm
3--- ft.
3.25--- ft.
914--- mm
1000 mm
3 1/2--- ft.
3.25--- ft.
1067--- mm
1000 mm
3 1/2--- ft.
3.25--- ft.
1067--- mm
1000 mm
4--- ft.
3.25--- ft.
440 01 6101 00
A170006
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