Approved Materials For Exhaust Vent And Intake Pipe; Additional Requirements For Installation In Canada - Westinghouse WGR-076 Series Installation, Start-Up, Maintenance, Parts, Warranty

B. Approved Materials for Exhaust Vent and Intake Pipe
Item
Exhaust Vent or Intake
Pipe and Fittings
Pipe Cement / Primer
• 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 AL29-4C 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 may be used 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.
Table 5 - Approved Materials for Exhaust Vent and Intake Pipe
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 the above table. Failure to do
so could result in property damage, serious injury, or death.
High heat sources (generating heat 100
such as boiler flue pipes, space heaters, etc.) may damage
plastic 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.
NOTE: The use of double-wall vent or insulated material for
the combustion air intake pipe is recommended in cold cli-
mates to prevent the condensation of airborne moisture in
the incoming combustion air.
Material
PVC Schedule 40/80
PVC-DWV*
CPVC Schedule 40/80
Polypropylene
Stainless Steel AL29-4C
PVC
CPVC
o F / 37 o C or greater,
Standards for Installation In:
United States
ANSI / ASTM D1785
ANSI / ASTM D2665
ANSI / ASTM F441
UL-1738
Certified for Category IV and Direct Vent Appliance Venting
ANSI / ASTM D2564
ANSI / ASTM F493
You must not use "B" vent in an exhaust application. "B" vent
is for intake applications ONLY. Using "B" vent in an exhaust
application will result in serious injury or death.
C. Additional 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.
Canada
PVC, CPVC, and PP Venting Must
be ULC-S636 Certified. IPEX is
an approved manufacturer in
Canada.
IPEX System 636 Cements and
Primers
WHL-001 Rev. 3.16.15
17