Approved Materials For Exhaust Vent And Intake Pipe; Requirements For Installation In Canada - Westinghouse WGR050NG076 Installation Instructions Manual

B. APPROVED MATERIALS FOR EXHAUST VENT AND INTAKE PIPE
Item
Exhaust vent or Intake
pipe and fittings
Pipe cement/primer
Table 4

The exhaust and intake components installed with this heater must be used for near heater piping BEFORE transitioning to the
approved materials listed above. DO NOT REMOVE these installed components. Doing so WILL VOID heater warranty.

PVC/CPVC pipe and fittings of the same diameter are considered interchangeable.

DO NOT use Foam Core Pipe in any portion of the exhaust piping from this water heater.

DO NOT connect PVC/CPVC to PP without an approved vent connector.

When installing AL29-4C vent piping, install a PVC-to-stainless adapter at the heater vent connection, and at the termination
when using a PVC termination kit. DO NOT mix AL-29-4C piping from different manufacturers unless using adapters
specifically designed for the purpose by the manufacturer.

A double wall vent may be used when using stainless steel vent material in a freezing climate.

*PVC-DWV for air intake applications ONLY.

Contact the venting material manufacturer if there is any question about the applicability of the proposed venting material.
Failure to follow these directions will result in substantial property damage, severe personal injury, or death.
DO NOT mix components from different venting systems. The vent system could fail, causing leakage of flue products into the living
space. Use only the approved pipe and fitting materials, and primer and cement specifically designed for the material used, as listed in
Table 4. Failure to do so could result in property damage, severe personal injury, or death.
Exhaust vent adaptors are not designed as load-bearing devices, and must not be used to support exhaust vent piping. All vent pipes
must be properly connected, supported, and the exhaust vent must be pitched a minimum of ¼" per foot back to the heater to allow
drainage of condensate. Failure to properly support vent piping and follow the information in this statement could result in product
damage, severe personal injury, or death.
NOTE: The use of double-wall vent or insulated material for the combustion air inlet pipe is recommended in cold climates to prevent
the condensation of airborne moisture in the incoming combustion air.
High heat sources (sources generating heat 100
components of the water heater as well as plastic vent pipe materials. Such damages ARE NOT covered by warranty. It is
recommended to keep a minimum clearance of 8" from high heat sources. Observe heat source manufacturer instructions, as well as
local, state, provincial, and national codes, laws, regulations and ordinances when installing this water heater and related components
near high heat sources.
C. REQUIREMENTS FOR INSTALLATION IN CANADA
1. Installations must be made with a vent pipe system certified to ULC-S636. IPEX is an approved vent manufacturer in Canada
supplying vent material listed to ULC-S636. Additionally you may use AL29-4C stainless steel venting to comply with Canadian
requirements.
2. The first three (3) feet of vent pipe from the water heater flue outlet must be readily accessible for visual inspection.
3. The components of the certified vent system must not be interchanged with other vent systems or unlisted pipe / fittings.
Cellular foam core piping may be used on air inlet piping only.
APPROVED EXHAUST VENT AND INTAKE PIPE MATERIAL
Material
PVC schedule 40/80
PVC-DWV*
CPVC schedule 40/80
Polypropylene
Stainless Steel AL29-4C
PVC
CPVC
o o
F / 37
Standards for Installation in:
United States
ANSI/ASTM D1785
ANSI/ASTM D2665
ANSI/ASTM F441
ULCS636
Certified for Category IV and
direct vent appliance venting
ANSI/ASTM D2564
ANSI/ASTM F493
C or greater, such as stove pipes, space heaters, etc.) may damage plastic
Canada
PP, CPVC, and PVC venting must be
ULC-S636 Certified. IPEX is an approved
manufacturer in Canada, supplying vent
material listed to ULC-S636.
Certified for Category IV and direct vent
appliance venting
IPEX System 636 Cements & Primers
WHL-001 REV. 9.3.14
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