Installation Guide

21
GAS CONVERSION
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 (For new
installations). 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 or external
to the building.
□ Sufficient room to service the water heater. See the “Facts to
Consider About the Location” section of this manual.
□ Water heater not located near an air moving device.
□ Water heater securely anchored.
GAS SUPPLY AND PIPING
□ Gas supply is the same type as listed on the water heater rating
plate.
□ Gas line equipped with shut-off valve, union, and sediment trap.
□ Approved pipe joint compound used.
□ Adequate pipe size and of approved material.
□ Chloride-free soap and water solution or other approved
means used to check all connections and fittings for possible
gas leaks.
COMBUSTION AIR SUPPLY / VENT PIPE SYSTEM
□ Sufficient fresh air supply provided from outdoors as described
in this manual, free of corrosive elements and flammable
vapors.
□ All venting installed according to applicable codes and
manufacturers’ instructions.
□ Vent pipe and fittings of approved material; approved roof jack.
□ 12” (30.48 cm) Min. above grade/snow level.
WATER SYSTEM PIPING
□ Temperature and pressure relief valve properly installed with
a discharge line. (Discharge line must be run to an adequate
drain or external to the building and protected from freezing.)
□ All piping properly installed and free of leaks.
□ Heater completely filled with water.
□ Closed system pressure build-up precautions installed (i.e.,
thermal expansion tank).
□ Mixing valve installed per manufacturer’s instructions.
INSTALLATION CHECKLIST
This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a fl ammable 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.
Questions? Contact Residential Technical Assistance.
This water heater is originally shipped for use with Natural
Gas but can be converted to LP (Propane) Gas by following
the instructions outlined below. To convert this water heater,
you must change both the conversion fitting in the gas control
valve/thermostat AND manifold/burner assembly (supplied).
Both the gas valve and the manifold burner assembly must
be correct for the type of gas used. If you are unsure about
converting this water heater to use a different type of gas,
contact a qualified person such as a plumber or your gas
supplier.
1. Contact your gas company to determine the type of gas
supplied to your home.
2. Check the setting of the conversion fitting in the gas
control valve.
3. Check the label on the manifold burner assembly door.
4. Make sure both the conversion fitting and the manifold
burner assembly (see door label) are for the type of gas
supplied to your home.
5. If you are converting this water heater from Natural to LP
or from LP to Natural, follow these steps and instructions:
• Remove manifold/burner assembly (instructions below).
• Convert the gas control valve/thermostat to same type of
gas (instructions on page 22).
• Install the replacement manifold/burner assembly (for
conversion; instructions on page 22).
• Place sticker next to data plate showing the type of gas
this water heater has been converted to use.
WARNING
Explosion Hazard
 Tighten both manifold door screws securely.
 Remove any fiberglass between gasket and combustion
chamber.
 Replace viewport if glass is missing or damaged.
 Replace manifold component block if missing or removed.
 Replace door gasket if damaged.
 'RQRWFRQQHFWDQ/3JDVZDWHUKHDWHUWRDQDWXUDOJDV
supply.
 'RQRWFRQQHFWDQDWXUDOJDVZDWHUKHDWHUWRDQ/3JDV
supply.
 Failure to follow these instructions can result in death,
explosion, or fire.