15
VENT KIT
A Vent Kit included with this water heater may be used for standard
sidewall or roof termination. It consists of:
1. One 45° ULC PVC elbow for installation on exhaust venting,
2. One 45° ULC PVC elbow for installation on air intake venting,
3. Wire mesh screens for installation on the intake and outlet
terminations to prevent objects from blocking the venting
system. See
Vent Screens
(page 17)
.
4. 2” Dia x 3.00”L PVC Pipe for connection to blower intake in PV
(Power Vent) installations.
5. 2” rubber coupling for connections to condensate/exhaust elbow.
Debris screens are to be installed at the termination to keep foreign
materials out of the venting.
Additional vent termination options (not included) are available.
Instruction for installing these other termination methods are
described later in this section.
Important: After completing the venting installation, ensure the
vent pipe is not blocked or restricted in any way.
VENT PIPE MATERIAL
This heater is certied to be installed using Schedule 40 vent
material. All jurisdictions in Canada require that the material used to
exhaust combustion products is approved to
ULC S636
. Check local
codes to determine which materials are allowed in your area and
only use approved material. All venting material and components
must be joined with the approved primer/cleaner and solvent cement.
Do not cement the venting system to the heater. For polypropylene
vent systems follow manufacturer’s instructions.
Note: Polypropylene vent systems require separate adaptor,
termination, and elbows (eld supplied).
Table 4. Vent Pipe Materials
Material
Pipe and Fitting
Nomenclature Applicable Standard
PVC DWV ASTM D2665 or CSA B181.2
PVC Sch 40, 80, 120 ASTM D1785 or CSA B137.3
PVC SDR series ASTM D2241 or CSA B137.3
PVC BH ULC S636‡
UL 1738§
CPVC CPVC 41 ASTM D2846 or CSA B137.6
CPVC Sch 40, 80 ASTM F441 or CSA B137.6
CPVC SDR series ASTM-F442
CPVC BH ULC S636‡
UL 1738§
ABS Sch 40 DWV ASTM D2661§, CSA B181.1§
or ULC S636‡
Polypropylene n/a ULC S636‡
UL 1738§
‡ Applicable to Canada only.
§ Applicable to the United States only.
Note: Use of cellular core PVC (ASTM F891), cellular core CPVC,
or Radel®(polyphenysulfone) in non-metallic venting
systems is prohibited.
Table 5. Vent Pipe Materials for Canadian Installations
Pipe Mate-
rials
ULC
S636
PVC
ULC
S636
CPVC
ULC S636
Poly-
propylene
PVC CPVC ABS
Exhaust Yes Yes Yes No No No
Air Intake Yes Yes Yes Yes Yes Yes
Note: PVC and CPVC vent pipe material must be schedule 40.
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