Installation Sheet
7 Page
INSTALLATION
GENERAL
1. Follow all local codes, or in the absence of local codes, follow the current edition of the
National Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas and
Propane Installation Code in Canada.
2. All gas water heaters require careful and correct installation to ensure safe and efficient
operation. This manual must be followed exactly. Read the “Safety Guidelines” section.
3. The manifold gas pressure is preset at the factory. It is computer controlled and should not
need adjustment.
4. Maintain proper space for servicing. Install the unit so that it can be connected or removed
easily. Refer to the "Clearances" section on p. 9 for proper clearances.
5. The water heater must be installed in a location where the proper amount of combustible
air will be available to it at all times without obstructions.
6. Electrical service to the water heater requires a means of disconnection. This will allow
power to the water heater to be shut off for servicing and safety purposes.
7. Do not install the unit where the exhaust vent is pointing into any opening in a building
or where the noise may disturb your neighbors. Ensure that the vent termination meets
the minimum distance requirements, including minimum clearances from doorways or
openings. (Refer to pp. 18 to 20.) Check local code requirements prior to installation.
8. Carefully plan the installation location of the heater and vent terminations. Contaminants
such as aerosols, lint, and fine powders (including flour) can clog the air intake and reduce
the operation of the fan. This, in turn, can cause improper combustion and reduce the
life of the water heater. Regularly ensure that the area around the water heater, vent
termination, and air intake is free of dust, debris, and other contaminants. In environments
with a high level of contaminants (laundry facilities, hair salons, pet salons, chemical plants,
commercial kitchens, etc.), direct venting is required. Refer to "Direct Vent Intake" section
on pp. 14.
9. If the water heater is used as a direct-vent appliance, the unit requires a 5 in. (127 mm)
combustible air supply pipe. The intake pipe must be sealed airtight. Refer to "Venting
instructions" on pp.15 to 20 for more detail.
10. Terminating the venting through a sidewall is recommended for the direct-vent system.
11. Running the exhaust vent and the intake pipe parallel is recommended.
12. Terminating the exhaust and intake on the same wall/surface is recommended. Terminating
in the same pressure zone allows for pressure balancing, which prevents nuisance
shutdowns.
13. Only install the water heater in a heated area where below freezing temperatures cannot
occur. The warranty does not cover damage caused by freezing.
14. The water heater must be securely mounted to a wall or other suitable structure.
Installaon
Installaon Manual