whl-648 Rev. 001 Rel. 003 Date 10.8.19
30
B. Approved Materials for Exhaust Vent and Intake Pipe
Table 13 - 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
o
F / 37
o
C or greater, such
as appliance flue pipes, space heaters, etc.) may damage plastic
components of the boiler 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 boiler and related components near high heat sources.
CAUTION
WARNING
!
NOTE:
The use of double-wall vent or insulated material for the
combustion air intake pipe is recommended in cold climates to
prevent the condensation of airborne moisture in the incoming
combustion air.
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 boiler 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.
DANGER
!
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.
DANGER
!
•
The exhaust and intake components installed with this appliance must be used for near appliance piping BEFORE transitioning to
the approved materials listed above. DO NOT REMOVE these installed components. Doing so WILL VOID appliance warranty.
•
PVC / CPVC pipe and fittings of the same diameter are considered interchangeable.
•
The use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel
®
(polyphenolsulfone) in non-metallic venting systems is
prohibited.
•
Covering non-metallic vent pipe and fittings with thermal insulation is prohibited.
•
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 appliance 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 or insulated material 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.
Item
Material
Standards for Installation In:
United States
Canada
Pipe and Fittings Approved for Intake ONLY
ABS*
ANSI/ASTM D2661
NOT PERMITTED
Pipe Approved for
Intake OR Exhaust Vent
PVC Schedule 40/80
ANSI/ASTM D1785
PVC, CPVC, and PP Venting
Must be ULC-S636 Certified.
IPEX is an approved
manufacturer in Canada.
PVC-DWV Schedule 40/80
ANSI/ASTM D2665
CPVC Schedule 40/80
ANSI/ASTM F441
Polypropylene
UL-1738 or ULC-S636
Stainless Steel AL29-4C
Certified for Category IV and Direct Vent Appliance Venting
Pipe Fittings
PVC Schedule 40
ANSI/ASTM D2466 or D2665
PVC, CPVC, and PP Venting
Must be ULC-S636 Certified.
IPEX is an approved
manufacturer in Canada.
PVC Schedule 80
ANSI/ASTM D2467 or D2665
CPVC Schedule 40
ANSI/ASTM F438
CPVC Schedule 80
ANSI/ASTM F439
Pipe Cement
ABS*
ANSI/ASTM D2235
NOT PERMITTED
PVC
ANSI/ASTM D2564
IPEX System 636 Cements
and Primers
CPVC
ANSI/ASTM F493
Pipe Primer
PVC / CPVC
ASTM F656
Summary of Contents for WBRC 140 Series
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Page 41: ...whl 648 Rev 001 Rel 003 Date 10 8 19 41 Figure 34 Ladder Diagram ...
Page 81: ...whl 648 Rev 001 Rel 003 Date 10 8 19 81 Notes ...
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