S9V2-SVX001-1B-EN
43
4. Hold the pipe in the fitting for 30 seconds to prevent
tapered socket from pushing the pipe out of the
fitting.
5. Wipe all excess cement from the joint with a rag.
Allow 15 minutes before handling. Cure time varies
according to fit, temperature and humidity.
Connection of the pipe and collar of the combustion air
inlet should just be a friction fit. It is recommended that
the inlet air joint be sealed with RTV type sealant to
allow the joint to be separated for possible future
service. The inlet and vent pipes must be properly
supported throughout the entire length.
NNoottee:: Follow venting instructions carefully when using
PVC cement.
IImmppoorrttaanntt:: All joints must be water tight. Flue
condensate is somewhat acidic, and leaks
can cause equipment damage.
Seal INLET AIR PIPE
with RTV sealant
Approved Vent Pipe Materials
PVC Vent Fitting Material
These fittings are available from your Gas Furnace Distributors.
ANSI/UL 1738 APPROVED VENT PIPE MATERIAL
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE °F MARKING
N/A N/A
158 UL 1738
PVC
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE °F MARKING
F891
CELLULAR CORE
(a)
158 ASTM F891
D2665 DWV PIPE 158 ASTM D2665
D1785
SCH 40, 80, 120
158 ASTM 1785
D2241 SDR SERIES 158 ASTM D2241
CPVC
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE °F MARKING
D2846 CPVC 41 212 ASTM D2846
F441
SCH 40, 80
212 ASTM F441
F442 SDR SERIES 212 ASTM F442
ABS
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE °F MARKING
D2661 SCH 40 DWV 180 ASTM D2661
F628
SCH 40 DWV CELLULAR CORE
(a)
180 ASTM F628
PolyPro® by DuraVent , Z-Dens by Novaflex Group, Innoflue® by Centrotherm, System 1738 by IPEX, ECCO™ polypropylene venting system,
and PolyFlue™ polypropylene venting systems.
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE °F MARKING
N/A N/A
230 ULC-S636
(a)
Beginning March 1, 2024, PVC Cellular Core and ABS Cellular Core vent materials are not approved.
FFuurrnnaaccee GGeenneerraall IInnssttaallllaattiioonn
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