Intertek FT Series - Venting (Exhaust)

Page 16
Table 3. Required Exhaust Vent Material.
VENTING INSTALLATION STANDARDS
MATERIAL UNITED STATES CANADA
Stainless Steel UL 1738 Venting must be ULC-S636 certied for use as
PVC, sch 40 ANSI/ASTM D1785 venting material. The venting material must be chosen
CPVC, sch 40 ANSI/ASTM F441 based upon the intended application of the boiler.
Polypropylene (PP), PP Flex UL1738 or ULC-S636
The ue temperature of the FT changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess
the application of the boiler to determine the
required certied vent class. If the FT is installed
in an application where the ambient temperature
is elevated, and/or installed in a closet/alcove,
CPVC, polypropylene, or stainless steel material is
required. If the system temperatures are unknown
at the time of installation, stainless, polypropylene
or CPVC material is recommended.
The FT is a Category IV appliance and may be
installed with PVC, CPVC or polypropylene (PP) and
PP Flex that complies with ULC-S636, ANSI/ASTM
D1785 F441 (see Table 3) or a stainless steel venting
system that complies with UL 1738 Standard and ULC
S636.
WARNING
Failure to use the appropriate vent material,
installation techniques, glues/sealants could lead to
vent failure causing property damage, personal injury
or death.
WARNING
All venting must be installed according to this manual
and any other applicable local codes, including but
not limited to, ANSI Z224.1/NFPA 54, CAN/CSA
B149.1 and ULC-S636. Failure to follow this manual
and applicable codes may lead to property damage,
severe injury, or death.
NOTICE
DO NOT COMMON VENT FT UNITS. FT
units are never permitted to share a vent with
Category I appliances.
AVIS
NE PAS ÉVENT COMMUNE FT UNITÉS. FT
unités ne sont jamais autorisés à partager un
évent Catégorie I avec les appareils.
4.4 Venting (Exhaust)
INSTALLATIONS IN CANADA require the use
of venting material certied to ULCS636. All Gas
vents connected to the FT, plastic, stainless
steel or otherwise must be certied to this ULC
standard. Appropriate selection of vent material is
very important for proper performance and safe
operation of the FT.
The ue temperature of the FT changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess
the application of the boiler to determine the
required certied vent class. If the FT is installed in
an application where the outlet water temperature
exceeds 145°F, and/or installed in a closet, class
IIB or higher vent material is required. If the
system temperatures are unknown at the time of
installation, class IIB or higher venting material is
recommended.
IN CANADA all venting used must meet the
following requirements:
1. ULC-S636 certied and marked
2. The rst 3 feet of venting must be accessible
for visual inspection.
3. All components used in the vent system must
be from a certied manufacturer.
WARNING
Use of cellular core PVC (ASTM F891), cellular
core CPVC, or Radel® (polyphenolsulfone) used
in non-metallic venting systems is prohibited.
Non-metallic vent pipe (PVC, CPVC, (PP), PP
Flex or other) shall NOT be insulated or covered.
Insulating or covering non-metallic venting may
cause overheating which diminishes the integrity
of the pipe.