Approved Materials For Exhaust Vent And Intake Pipe - Westinghouse Premium WGRT 199 Series Installation, Start-Up, Maintenance, Parts, Warranty

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1. Installation should be made in accordance with the regulations of
the Authority Having Jurisdiction, local code authorities, and utility
companies which pertain to this type of water heating equipment.
2. Install the venting system in accordance with these instructions
and with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, CAN/
CGA B149, and / or applicable provisions of local building codes.
3. This water heater must be vented with materials, components,
and systems listed and approved for Category IV appliances.
NOTE: To avoid contamination often contained in indoor air, it is
best to pipe all intake combustion air directly to the outdoors.
NOTE: Care must be taken to prevent condensate freezing in the
exhaust vent pipe system. See local, state, provincial, and national
codes for best practices to prevent condensate freezing in the
exhaust vent pipe system.
B. Approved Materials for Exhaust Vent and Intake Pipe
Item
Pipe and Fittings Approved
for Intake ONLY
Pipe Approved for
Intake OR Exhaust Vent
Pipe Fittings
Pipe Cement
Pipe Primer
• The exhaust and intake components installed with this boiler must be used for near boiler piping BEFORE transitioning to the
approved materials listed above. DO NOT REMOVE these installed components. Doing so WILL VOID boiler 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 boiler.
• DO NOT connect PVC/CPVC to Polypropylene without an approved vent connector.
• Any transition to Polypropylene MUST be done in the vertical within five (5) feet of the appliance.
• When installing AL29-4C vent piping, install a PVC-to-stainless adapter at the boiler 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.
• *ABS may be used for air intake applications ONLY. ABS is NOT PERMITTED for use in Canada.
• 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 14 - Approved Materials for Exhaust Vent and Intake Pipe
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 1/4" 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.
whl-004 Rev. 000 Rel. 013 Date 5.1.18
Material
ABS*
PVC Schedule 40/80
PVC-DWV Schedule 40/80
CPVC Schedule 40/80
Polypropylene
Stainless Steel AL29-4C
PVC Schedule 40
PVC Schedule 80
CPVC Schedule 40
CPVC Schedule 80
ABS*
PVC
CPVC
PVC / CPVC
Due to the extreme flammability of most glues, cements, solvents,
and primers used to join plastic exhaust vent and intake pipes,
explosive solvent vapors must be cleared from all vent piping before
start-up. Avoid using excess cement or primer, as this may pool in the
vent pipes. Vent assemblies should be allowed to cure for a period of
at least 8 hours before powering a connected appliance. Failure to
follow these instructions will result in substantial property damage,
severe personal injury, or death. It is the installers' responsibility to
understand the hazards associated with explosive solvents and take
the necessary precautions to avoid these risks.
Standards for Installation In:
United States
ANSI/ASTM D2661
ANSI/ASTM D1785
ANSI/ASTM D2665
ANSI/ASTM F441
UL-1738 or ULC-S636
Certified for Category IV and Direct Vent Appliance Venting
ANSI/ASTM D2466 or D2665
ANSI/ASTM D2467 or D2665
ANSI/ASTM F438
ANSI/ASTM F439
ANSI/ASTM D2235
ANSI/ASTM D2564
ANSI/ASTM F493
ASTM F656
Improper seating of vent pipe gaskets can cause eventual gasket
failure and exhaust gas leakage. Ensure the exhaust vent pipe
is properly beveled and seated before insertion into the flue
adapter. Failure to do so could result in property damage, severe
personal injury, or death.
Canada
NOT PERMITTED
PVC, CPVC, and PP Venting Must
be ULC-S636 Certified. IPEX is an
approved manufacturer in Canada.
PVC, CPVC, and PP Venting Must
be ULC-S636 Certified. IPEX is an
approved manufacturer in Canada.
NOT PERMITTED
IPEX System 636 Cements and
Primers