3
CHAPTER 1
CHAPTER 1 - PRE-INSTALLATION REQUIREMENTS
1.3.1 PVC and CPVC Vent and Combustion Air
Piping and Fittings
• PVC Schedule 40 - ANSI/ASTM D1785
• PVC-DWV - ANSI/ASTM D2665
• CPVC Schedule 40 - ANSI/ASTM F441
1.3.2 PVC and CPVC Pipe Cement and Primer
• PVC - ANSI/ASTM D2564
• CPVC - ANSI/ASTM F493
• For installations in Canada, all piping, fit-
tings and cement/primer material must be
certified and listed to ULC-S636. Ipex Inc. is
an approved manufacturer of ULC S636 vent
components.
• Use of cellular core PVC (ASTM F891) cel-
lular core CPVC, or Radel® (polyphenol-
sulfone) in venting systems is prohibited.
Cellular core pipe may be used for combus-
tion air piping.
DO NOT mix a PVC/CPVC vent system & com-
ponents with other vent system materials &
components. Seal all PVC and CPVC pipe and
fittings with the appropriate primer and ce-
ment. Failure to comply with this requirement
can cause the venting system to fail resulting
in substantial property damage, serious injury,
or death.
NOTICE
WARNING
1.3.3 AL29-4C® Stainless Steel Vent Piping and
Fittings
Approved AL29-4C® Stainless Steel vent manufacturers
and vent systems:
• SelKirk/Heatfab
• DuraVent
• Z-FLEX U.S. Inc.
Only use approved stainless steel vent adapters and
terminations listed in Table 1 on page 3.
Contact approved AL29-4C® stainless steel
vent manufacturer for a copy of their instal-
lation instructions. Read, understand and fol-
low all of the vent manufacturer’s instructions
before beginning the installation. Contact
vent manufacturer if you require any tech-
nical support. Failure to properly install and
support vent system can cause the venting
system to fail, resulting in substantial proper-
ty damage, serious injury, or death.
When using stainless steel for the vent system,
PVC or CPVC pipe meeting the listed require-
ments in this manual may be utilized for the
combustion air piping.
WARNING
NOTICE
Table 1 - Approved Stainless Steel Vent Adapters and Terminations
Description
SelKirk / Heatfab
Saf-T Vent EZ Seal or
Saf-T Vent SC
DuraVent
FasNSeal or CVS
Z-Flex U.S. Inc.
Z-Vent
3” Vent Adapter Not required Not required Not required
3” Roof & Side Wall Straight Termination 9392 300186 2SVSTPF03
3” Side Wall & 45° Elbow Termination 9311TERM 300130 & 300186 2SVSTEX0345
3” Side Wall Tee Termination 9390TEE 300311 2SVSTTF03
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