18 18-CD30D1-12
Installer’s Guide
TABLE 9
PLASTIC PIPE DESIGNATIONS
PVC
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE MARKING
F891 CELLULAR CORE *158 ASTM F891
D2665 DWV PIPE **158 ASTM D2665
D1785 SCH 40, 80, 120 **158 ASTM D1785
D2241 SDR SERIES **158 ASTM D2241
CPVC
ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE 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 MARKING
D2661 SCH 40 DWV ***180 ASTM D2661
F628 SCH 40 DWV CELLULAR CORE ***180 ASTM F628
* - Allowable temperatures based on classifications covered in ASTM D4396 [Deflection Temps Under Load (264 PSI)]
** - Allowable temperatures based on classifications covered in ASTM D1784 [Deflection Temps Under Load (264 PSI)]
*** - Allowable temperatures based on classifications covered in ASTM D3965 [Deflection Temps Under Load (264 PSI)]
PVC VENT FITTING MATERIAL These fittings are available from your Gas Furnace Distributors for U.S. appli-
cations only.
Seal VENT PIPE
with RTV sealant
Seal INLET AIR PIPE
with RTV sealant
Front of Furnace
VENT AND INLET AIR CONNECTIONS
g
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.
NOTE:
Follow venting instructions carefully when using PVC
cement.
IMPORTANT:
All joints must be water tight. Flue condensate is somewhat
acidic, and leaks can cause equipment damage.
IMPORTANT:
Products installed in Canada must use vent systems that
are certified to the Standard for Type BH Gas Venting
Systems (ULC S636) for Class II-A venting systems (up
to 65 degrees C). Components of the vent system must
not be interchanged with other vent systems or unlisted
pipe or fittings. Plastic components, specified primers, and
glues must be from a single system manufacturer and not
intermixed with other system manufacturer’s vent system
parts.
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.
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