Instructions / Assembly
12
Installing the water heater
The water heater must be installed with the factory supplied blower assembly in place.
Venting
The water heater must be vented to the
outdoors as described in these instructions.
DO NOT connect this water heater to an
existing vent or chimney - it must be vented
separately from all other appliances.
NOTICE: This unit can be vented using
only the following recommended pipe
material. Use only 2- or 3-inch diameter
pipe.
This water heater is a Category III appliance.
For proper instal¬lation of the vent system,
follow the instructions as detailed in this
manual. DO NOT connect this water heater
to an existing vent or chimney. Common
venting is NOT permitted. It must be vented
separately from all other appli¬ances.
Multi-story venting is permitted in
accordance with the National Fuel Gas
Code, ANSI Z223.1/NFPA 54.
NOTICE: This water heater is approved
to use the following materials for pipe of
the vent system
PVC (Schedule 40, ASTM D1785)
CPVC (Schedule 40, ASTM F441)
ABS (Schedule 40, ASTM D2661)
ABS (Schedule 40 DWV, Cellular Core,
ASTM F628)
The fittings, other than the TERMINATION,
should be equivalent to the following:
PVC (Schedule 40 DWV, ASTM D2665)
CPVC (Schedule 40, ASTM F438)
ABS (Schedule 40 DWV, ASTM D2661)
The unit may be vented horizontally through
a wall or vertically through the roof.
Vent pipe runs must be adequately supported
along both vertical and horizontal lengths.
Maximum unsupported length is
recommended to be no more than 6 feet.
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 pipe from floor joists or other structural
members to help prevent the transmission of
noise and vibration.
DO NOT support, pin or otherwise secure
the venting system in a way that restricts the
normal thermal expansion and contraction of
the chosen venting material.
If the water heater is being installed as a
replacement for an existing power vented
water heater, a thorough inspection of the
existing venting system must be performed
prior to any installation work.
Verify that the correct materials as
detailed above have been used, and that
the minimum or maximum vent length
and terminal locations as detailed in this
manual have been met.
Carefully inspect the entire venting
system 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 system for signs of sagging
or other stresses in the joints as a result
of misalignment of any components in
the system.
If any of these conditions are found,
they must be corrected in accordance
with the venting instructions in this
manual before completing the
installation and putting the water heater
into service.
DANGER: Failure to
install the blower assembly
and properly vent the water
heater to the outdoors as
outlined in the Venting
section of this manual will
result in unsafe operation of
the water heater causing
bodily injury, explosion, fire
or death.
To avoid the risk of fire,
explosion, or asphyxiation
from carbon monoxide,
NEVER operate the water
heater unless it is properly
vented and has adequate air
supply for proper operation
as outlined in the Venting
section of this manual.
The vent pipe must overlap
a minimum of ½” on each
connection. It is important
that the vent pipe engages
fully into any pipe fitting
and be kept in that position
until the adhesive has fully
cured. DO NOT drill or
punch holes in the plastic
pipe or fittings.
NOTICE: This unit is
equipped with a Flammable
Vapor Sensor. DO NOT
apply power until enough
time has passed to allow the
vapors from the primer and
cement to dissipate.
Blower Assembly Installation
(if not factory installed)
Connect blower assembly with the electrical connector. Attach
Blower Assembly to top pan using the six (6) screws provided
(See diagram to the left). Install rubber coupling (supplied in
the box with water heater) on blower housing and secure it.
NOTICE: The Blower Assembly is model specific and only
the blower assembly supplied should be used on this water
heater.
Additional installation infor-
mation for The Commonwealth
of Massachusetts is located on
the back page of this manual.
Blower
Assembly
Rubber
Coupling
Flue Bafe