Use and Care Guide

17
Water Heater Location
Water heater location is important and can affect system
performance. Please check the following:
□ Installation area free of corrosive elements and
flammable materials.
□ Centrally located with the water piping system.
Located as close to the gas piping and vent pipe
system as possible.
□ Located indoors and in a vertical position. Protected
from freezing temperatures.
□ Proper clearances from combustible surfaces
maintained and not installed directly on a carpeted
floor.
□ Provisions made to protect the area from water
damage. Metal drain pan installed and piped to an
adequate drain.
□ Sufficient room to service the water heater. See
“Clearances and Accessibility” section of this
manual.
□ Water heater not located near an air moving device.
Combustion Air Supply and Ventilation
□ Fresh air supply free of corrosive elements and
flammable vapors.
Vent Pipe System
Check for proper drafting at the water heater draft hood.
Refer to the “Checking the Draft” section of this manual for
the test procedure. If the procedure shows insufficient draft
is present, please check the following.
□ Proper location on an outside wall selected for
Through the Wall Venting.
□ “A” Dimensions determined per water heater to
determine whether a Vertical Extension kit is
needed.
□ Optional Vertical Extension Kit Installed (if
necessary).
□ Heater centered directly under the roof opening
for Through the Roof Venting.
□ Through the roof venting has a 15 foot maximum
height for the 50 Gallon direct vent water heater
and a maximum of 14’ 3-1/4” for the 40 Gallon
direct vent water heater.
□ Vent pipe system installed according to all local
and state codes or, in the absence of local and
state codes, the “National Fuel Gas Code”, ANSI
Z223.1(NFPA 54)-current edition.
Water System Piping
□ Temperature and pressure relief valve properly
installed with a discharge line run to an open drain
and protected from freezing.
□ All piping properly installed and free of leaks.
□ Heater completely filled with water.
□ Closed system pressure build-up devices installed.
□ Mixing valve (when applicable) installed per
manufacturer’s instructions (see “Water Temperature
Regulation” section).
Gas Supply and Piping
□ Gas type is the same as that listed on the water
heater data plate.
□ Gas line equipped with shut-off valve, union, and
sediment trap.
□ Adequate pipe size and approved pipe material.
□ An approved noncorrosive leak detection solution
used to check all connections and fittings for possible
gas leaks. Correct any leak found.
TEFLON
®
is a registered trademark of E.I. Du Pont De Nemours and Company.
Important Information About This Water Heater
This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a flammable vapor
ignition incident. The new technology used in meeting these standards makes this product more sensitive to installation
errors. Please review the following checklist and make any required installation upgrades or changes.
Installation Checklist