18-CD19D8-18
15
Installer’s Guide
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.
PVC VENT FITTING MATERIAL
These fittings are available from your Gas Furnace Distributors.
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)]
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.
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.
Connection of the vent pipe to the vent collar should also be
accomplished using RTV type sealant. This type sealant
provides a connection which remains flexible and can be
separated in the future if service needs require the removal of
the vent pipe for service or clearance.
NOTE:
Vent termination kit BAYAIR30AVENTA or BAYVENT200B
may be used in addition to the horizontal and vertical
termination options shown in the following figures.
Seal
VENT PIPE
with RTV sealant
Seal
INLET AIR PIPE
with RTV sealant
Front of Furnace
VENT AND INLET AIR CONNECTIONS
g
