Use & Care Manual

12
Installing the Water Heater
The vent and combustion air-inlet systems of this
water heater may be installed horizontally through
a wall or vertically through the roof.
Maximum unsupported length is recommended to
be no more than 4 ft. (1.22 m).
NOTICE: It is imperative that the first hanger
be located on the horizontal length immediately
adjacent to the first 90-degree elbow from the
vertical rise of vent pipe connected to the water
heater.
The support method used should isolate the vent
and combustion air-inlet pipes from floor joists or
other structural members to help prevent the trans-
mission of noise and vibration.
Do not support, pin or otherwise secure the vent
and combustion air-inlet systems in a way that
restricts the normal thermal expansion and con-
traction of the chosen venting material.
If the water heater is being installed as a replace-
ment for an existing power direct vent water heat-
er, a thorough inspection of the existing vent and
combustion air-inlet systems must be performed
prior to any installation work. The existing vent
must be code compliant.
Verify that the correct materials as specified
in this manual have been used, and that the
minimum or maximum vent and combustion
air-inlet lengths and terminal locations as
detailed in this manual have been met.
Carefully inspect the entire vent and combus-
tion air-inlet systems for any signs of cracks
or fractures, particularly at the joints between
elbows or other fittings and the straight
length of vent pipe.
Check the vent and combustion air-inlet for
signs of sagging or other stresses in the joints
as a result of misalignment of any compo-
nents in the systems.
If any of the conditions above are found, they
must be corrected in accordance with the
instructions in this manual before completing
the installation and putting the water heater
into service.
NOTICE: This unit
is equipped with a
Flammable Vapour
Sensor. Do not supply
electrical power to
the water heater
until enough time
has passed to allow
the vapours from the
primer and cement to
dissipate.
Vent and Combustion Air-Inlet continued -
Ambient Installation Temperatures and Vent System Material Specications
Up to 100°F (38°C) 100°F (38°C) to 125°F (52°C)
Models
0 to 10 ft.
(0 to 3 m)
Equivalent Vent|
System Length
10 ft. to Max.
(0 m to Max.)
Equivalent Vent
System Length
0 to 10 ft.
(0 to 3 m)
Equivalent Vent
System Length
10 ft. to Max.
(0 m to Max.)
Equivalent Vent
System Length
40 Gallon, 40,000 &
38,000 Btu/hr. Models,
PVC, or CPVC
CPVC PVC, or CPVC
50 Gallon, 40,000 Btu/
hr. Models,
65 Gallon, 65,000 &
56,000 Btu/hr. Models
50 Gallon, 65,000 &
47,000 Btu/hr. Models,
CPVC PVC, or CPVC
75 Gallon, 75,100 &
70,000 Btu/hr. Models
NOTE: This water heater may be installed in attics provided ambient temperatures do
not exceed 125°F (52°C) and CPVC pipe and ttings that are certied to ULC-S636 are
used for the entire vent system.