AP15756 (05/10)
FOR YOUR SAFETY!
— Do not store or use gasoline or other
flammable vapors or liquids or other
combustible materials in the vicinity of this or
any other appliance. To do so may result in an
explosion or fire.
— WHAT TO DO IF YOU SMELL GAS
● Do not try to light any appliance.
● Do not touch any electrical switch; do not
use any phone in your building.
● Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
● If you cannot reach your gas supplier, call
the fire department.
● Do not return to your home until authorized
by the gas supplier or fire department.
— Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, personal injury, or death. Refer to
this manual. Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.
WARNING: If the information in these instructions is not followed exactly,
a fire or explosion may result causing property damage, personal injury or death.
The purpose of this manual is twofold: one, to provide the installer with the basic directions and
recommendations for the proper installation and adjustment of the water heater; and two, for the owner–
operator, to explain the features, operation, safety precautions, maintenance and troubleshooting of the
water heater. This manual also includes a parts list.
It is imperative that all persons who are expected to install, operate or adjust this water heater read the
instructions carefully so they may understand how to perform these operations. If you do not understand
these instructions or any terms within it, seek professional advice.
Any questions regarding the operation, maintenance, service or warranty of this water heater should
be directed to the seller from whom it was purchased. If additional information is required, refer to the
section on “If you need service.”
Do not destroy this manual. Please read carefully and keep in a safe place for future reference.
Recognize this symbol as an indication of Important Safety Information!
California Proposition 65 Warning: This product contains chemicals known to the State of
California to cause cancer, birth defects or other reproductive harm.
Residential 38, 40, and 50 Gallon
Use & Care Manual
With Installation Instructions for the Installer
Printed in USA
Water Heaters
Residential Gas - FVIR Certified
D
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Warning: This water heater is not suitable
for use in manufactured (mobile) homes!
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El manual en Español está disponible en www.rheem.com.
W I T H D A M P E R & E L E C T R O N I C C O N T R O L
Energy Star II
Care and Cleaning
Draining . . . . . . . . . . . . . . . . 20
Maintenance . . . . . . . . . . . . . 20
Burner Inspection . . . . . . . . 21
Extended Shut-Down . . . . . .21
Safety Information
Safety Precautions . . . . . . . 3–6
LP Gas Models . . . . . . . . . . . 5
Installation Instructions
Location . . . . . . . . . . . . . . . . . 7
Water Supply Connections . . 9
Flue Damper . . . . . . . . . . . . .10
Gas Supply . . . . . . . . . . . . . . 11
Pipe Insulation . . . . . . . . . . . .14
Heat Traps . . . . . . . . . . . . . . .14
Installation Checklist . . . . . . .15
Potable/Space Heating . . . . 16
Operating Instructions
Lighting Instructions . . . . . . 17
Water Temperature . . . . 18, 19
Troubleshooting Tips
Before You Call
For Service . . . . . . . . . . . 22, 23
LED Codes . . . . . . . . . . . 24, 25
Customer Service
Parts List . . . . . . . . . . . . . . . . 26
If You Need Service . . . . . . .28
FOR YOUR RECORDS
Write the model and serial numbers here:
#
#
You can find them on a label on the appliance.
Staple sales slip or cancelled check here.
Proof of the original purchase date is needed to obtain service under
the warranty.
2
Inside you will find many helpful hints on how to use and
maintain your water heater properly. A little preventive care
on your part can save you time and money over the life of your
water heater.
You’ll find many answers to common problems in
the Troubleshooting Guide. If you review the chart of
Troubleshooting Tips first, you may not need to call for service.
READ THIS MANUAL
READ THE SAFETY INFORMATION
!
Your safety and the safety of others are very important. There
are many important safety messages in this manual and on your
appliance. Always read and obey all safety messages.
This is the safety alert symbol. Recognize this symbol as an
indication of Important Safety Information!
This symbol alerts you to potential hazards that can kill or hurt
you and others.
All safety messages will follow the safety alert symbol and
either the word “DANGER”, “WARNING”, “CAUTION” or
“NOTICE”.
These words mean:
DANGER
An imminently hazardous situation
that will result in death or serious
injury.
WARNING
A potentially hazardous situation that
could result in death or serious injury
and/or damage to property.
CAUTION
A potentially hazardous situation that
may result in minor or moderate
injury.
Notice:
Attention is called to observe a
specified procedure or maintain
a specific condition.
!
!
!
Be sure to read and understand the entire Use and Care Manual before attempting to install or operate
this water heater. It may save you time and money. Pay particular attention to the Safety Instructions.
Failure to follow these warnings could result in serious bodily injury or death. Should you have
problems understanding the instructions in this manual, or have any questions, STOP, and get help
from a qualified service technician, or the local gas utility.
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
3
Failure to install the draft hood and properly vent the water heater to the outdoors as
outlined in the Venting Section of the Installation Instructions in this manual can result in
unsafe operation of the water heater. To avoid the risk of fire, explosion, or asphyxiation
from carbon monoxide, never operate this water heater unless it is properly vented and
has an adequate air supply for proper operation. Be sure to inspect the vent system
for proper installation at initial start-up; and at least annually thereafter. Refer to the
Care and Cleaning section of this manual for more information regarding vent system
inspection.
!
DANGER!
INSTALL THE DRAFT HOOD AND PROPERLY VENT THE
WATER HEATER…
Gasoline, as well as other flammable materials and liquids (adhesives, solvents, paint
thinners etc.), and the vapors they produce are extremely dangerous. DO NOT handle,
use or store gasoline or other flammable or combustible materials anywhere near or in the
vicinity of a water heater or any other appliance. Be sure to read and follow warning label
pictured below and other labels on the water heater, as well as the warnings printed in
this manual. Failure to do so can result in property damage, bodily injury or death.
!
WARNING!
!
!
FLAMMABLES
Flammable Vapors
FIRE AND EXPLOSION HAZARD
Can result in serious injury or death.
Do not store or use gasoline or other flammable vapors and liquids
in the vicinity of this or any other appliance. Storage of or use of gasoline
or other flammable vapors or liquids in the vicinity of this or any other
appliance can result in serious injury or death.
W A R N I N G
The chart shown above may be used as a guide
in determining the proper water temperature for your
home.
DANGER: Households with small children,
disabled, or elderly persons may require a 120°F
or lower gas control (thermostat) setting to
prevent contact with “HOT” water.
Maximum water temperatures occur just after the
burner has shut off. To find water temperature being
delivered, turn on a hot water faucet and place
a thermometer in the water stream and read the
thermometer.(See page 18 and 19 for more details.)
The temperature of the water in the heater can be
regulated by setting the temperature dial on the front
of the gas control (thermostat). To comply with
safety regulations the gas control (thermostat) was
set at its lowest setting before the water heater was
shipped from the factory.
The illustration below details the approximate water
temperature for each mark on the Gas Control
(Thermostat) Temperature Dial.
Water Temperature Time To Produce a Serious Burn
120°F More than 5 minutes
125°F 1
1
/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1
1
/2 seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute
Time/Temperature Relationship in Scalds
D A N G E R
!
HOT
Water temperature over 125°
can
cause severe burns
instantly or
death from scalds.
Children, disabled and elderly are
at highest risk of being scalded.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
BURN
F (52°C)
!
DANGER!
WATER TEMPERATURE SETTING
Safety and energy conservation are factors to be considered when selecting the water
temperature setting of a water heater’s gas control. Water temperatures above 125°F
can cause severe burns or death from scalding. Be sure to read and follow the warnings
outlined on the label pictured below. This label is also located on the water heater.
Notice: Mixing valves are available for reducing
point of use water temperature by mixing hot and
cold water in branch water lines. Contact a licensed
plumber or the local plumbing authority for
further information.
4
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
!
!
DANGER: Hotter water increases the potential for
Hot Water SCALDS.
Valve Set
Point
Estimated
Temperature Burns on Adult Skin
LOW
90°F ------------------------
●
98°F ------------------------
●
105°F ------------------------
●
113°F ------------------------
HOT
120°F More than 5 minutes
A
130°F About 30 seconds
B
140°F Less than 5 seconds
C
150° About 1-1/2 seconds
VERY HOT
160°F About 1/2 second
5
LP and Natural gas have an odorant added to aid in detecting a gas leak. Some people
may not physically be able to smell or recognize this odorant. If you are unsure or
unfamiliar with the smell of LP or natural gas, ask the gas supplier. Other conditions,
such as “odorant fade”, which causes the odorant to diminish in intensity, can also hide or
camouflage a gas leak.
!
DANGER!
LIQUEFIED PETROLEUM (LP - PROPANE OR BUTANE)
AND NATURAL GAS MODELS
● Water heaters utilizing LP gas are
different from natural gas models. A
natural gas water heater will not function
safely on LP gas and vice versa.
● No attempt should ever be made to
convert the water heater from natural
gas to LP gas. To avoid possible
equipment damage, personal injury or
fire, do not connect the water heater to a
fuel type not in accordance with the unit
data plate. LP for LP units. Natural gas
for natural gas units. These units are not
certified for any other fuel type.
● LP appliances should not be installed
below grade (for example, in a basement)
if such installation is prohibited by
federal, state and/or local laws, rules,
regulations or customs.
● LP gas must be used with great caution.
It is heavier than air and will collect first
in lower areas making it hard to detect at
nose level.
● Before attempting to light the water
heater, make sure to look and smell for
gas leaks. Use a soapy solution to check
all gas fittings and connections. Bubbling
at a connection indicates a leak that must
be corrected. When smelling to detect a
gas leak, be sure to sniff near the floor
also.
● Gas detectors are recommended in LP
& natural gas applications and their
installation should be in accordance
with the detector manufacturer’s
recommendations and/or local laws,
rules, regulations or customs.
● It is recommended that more than one
method, such as soapy solution, gas
detectors, etc., be used to detect leaks in
gas applications.
!
DANGER: If a gas leak is present or
suspected:
● Donotattempt to find the cause yourself.
● Donot try to light any appliance.
● Donot touch any electrical switch.
● Donot use any phone in your building.
● Leave the house immediately and make
sure your family and pets leave also.
● Leave the doors open for ventilation
and contact the gas supplier, a qualified
service agency or the fire department.
● Stay away from the house (or building)
until the service call has been made, the
leak is corrected and a qualified agency
has determined the area to be safe.
6
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
WARNING!
For your safety, the information in this manual must be followed to minimize the risk of
fire or explosion, electric shock, or to prevent property damage, personal injury, or loss of
life.
FOR INSTALLATIONS IN THE STATE OF CALIFORNIA
California Law requires that residential water heaters must be braced, anchored or
strapped to resist falling or horizontal displacement due to earthquake motions. For
residential water heaters up to 52-gallon capacity, a brochure with generic earthquake
bracing instructions can be obtained from: Office of the State Architect, 1102 Q Street,
Suite 5100, Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater
dealer.
However, applicable local codes shall govern installation. For residential water heaters
of a capacity greater than 52 gallons, consult the local building jurisdiction for acceptable
bracing procedures.
Have the installer show you the location of the gas shut-off valve and how to shut it off
if necessary. Turn off the manual shut-off valve if the water heater has been subjected to
overheating, fire, flood, physical damage or if the gas supply fails to shut off.
● Read this manual entirely before installing
or operating the water heater.
● Use this appliance only for its intended
purpose as described in this Use and Care
Manual.
● Be sure your appliance is properly installed
in accordance with local codes and the
provided installation instructions.
● Do not attempt to repair or replace any part
of your water heater unless it is specifically
recommended in this manual. All other
servicing should be referred to a qualified
technician.
SAFETY PRECAUTIONS
READ AND FOLLOW THIS SAFETY INFORMATION
CAREFULLY.
SAVE THESE INSTRUCTIONS
!
Combustion Air Inlet
Openings
Installing the water heater.
This water heater must be installed in accordance with these instructions, local codes, utility company
requirements, and/or in the absence of local codes, use the latest edition of the American National
Standard/National Fuel Gas Code. A copy can be purchased from either the American Gas Association,
400 N. Capitol Street NW, Washington, DC 20001 as ANSI standard Z223.1 or National Fire Protection
Association, 1 Batterymarch Park, Quincy, MA 02269 as booklet NFPA 54.
Location
The water heater should not be located
in an area where leakage from the tank
or connections will result in damage
to the area adjacent to the heater or to
lower floors of the structure.
When such areas cannot be avoided it is
recommended that a suitable catch pan,
adequately drained, must be installed
under the water heater.
The pan must not restrict air flow to the
combustion air inlet openings (perforation
openings) located around the lower
perimeter of the water heater.
Catch pan kits are available from the store
where the water heater was purchased, or
any water heater distributor.
Make certain the floor underneath the water
heater is strong enough to sufficiently
support the weight of the water heater once
it is filled with water.
A gas-fired water heater or any other
appliance should not be installed
in a space where liquids which give off
flammable vapors are to be used or stored.
Such liquids include gasoline, LP gas
(butane or propane), paint or adhesives and
their thinners, solvents or removers.
When installed in a closet, DO NOT
block or obstruct any of the combustion
air inlet openings located around the
perimeter of the water heater. A
minimum of 1” is required between these
combustion air inlet openings and any
obstruction.
DO NOT obstruct or block the
Flammable Vapor Sensor.
Because of natural air movement in a room
or other enclosed space, flammable vapors
can be carried some distance from where
liquids which give off flammable vapors
are to be used or stored. The open flame of
the water heater’s pilot or main burner can
ignite these vapors and create a shut down
condition of the water heater which
will not allow the water heater to ignite
until examined by a Qualified Service
Technician.
FVIR certified gas water heaters can be
installed on a residential garage floor
without the use of an 18-inch stand in
accordance with the National Fuel Gas
Code, NFPA 54, ANSI Z223.1 2006, unless
otherwise directed by State and Local
code requirements. The water heater must
be located so it is not subject to physical
damage, for example, by moving vehicles,
area flooding, etc
● The water heater should be installed
as close as practical to the gas vent or
chimney.
● Hot water lines should be insulated to
conserve water and energy.
● The water heater and water lines should
be protected from exposure to freezing
temperatures.
● Do not install this water heater in
bathrooms, bedrooms, any occupied
rooms normally kept closed, or in
unprotected outdoor areas.
● Minimum clearance from combustible
construction:
● If the clearances stated on the
Instruction/Warning Label, located on
the front of the heater differ, install the
water heater according to the clearances
stated on the label.
● If the water heater is to be installed
directly on carpeting , the water heater
shall be installed on a metal or wood
panel extending beyond the full width
and depth of the water heater by at least
3 in. (7.6 cm) in all directions or, if
the water heater is to be installed in an
alcove or closet, the entire floor must be
covered by a wood or metal panel.
The auxiliary catch pan
installation MUST conform
to local codes.
Diameter of
water heater
plus 2” min.
Max.
2”
WARNING: Combustible
construction refers to
adjacent walls and ceilings
and should not be confused
with combustible or
flammable products and
materials. Combustible and/
or flammable products and
materials should never be
stored in the vicinity of this
or any gas appliance.
Location Front Sides Rear Top
Alcove
3”
(7.62 cm)
0”
(0 cm)
0”
(0 cm)
12”
(30.5 cm)
Closet
3”
(7.62 cm)
1”
(2.5 cm)
0”
(0 cm)
12”
(30.5 cm)
Rear
Sides
Front Open
Sides
Front Enclosed
Top View Closet
Top View Alcove
Rear
7
!
Flammable
Vapor
Sensor
Notice: DO NOT allow the
flammable vapor sensor to
become submerged in water.
Make sure the catch pan is
properly drained.
8
Installing the water heater.
Combustion and Ventilation Air
Proper operation of the water heater
requires air for combustion and
ventilation. Provisions for combustion
and ventilation air must comply with
referenced codes and standards.
When installed in a closet, DO NOT block
or obstruct any of the combustion air inlet
openings located around the perimeter
of the water heater. A minimum of 1” is
required between these combustion air inlet
openings and any obstruction.
NOTICE: If the water heater is installed
in an unconfined space within a building
of conventional frame, masonry or metal
construction, infiltration air is normally
adequate for proper combustion and
ventilation. If the water heater is installed in
a confined space, provisions for combustion
and ventilation air must be made.
A confined space is one having a volume
of less than 50 cubic feet per 1000 Btuh
of the aggregate input of all appliances
within that space.
The air must be supplied through two
permanent openings of equal area. One
is to be located within 12” above the floor
and the other is to be located within 12”
from the ceiling.
The minimum net free area of each opening
must not be less than one square inch
per 1,000 Btuh of the total input rating
of all the appliances in the enclosure
(but not less than 100 square inches), if
each opening communicates with other
unconfined areas inside the building.
Buildings of unusually tight construction
shall have the combustion and ventilation
air supplied from outdoors, or a freely
ventilated attic or crawl space.
If air is supplied from outdoors, directly or
through vertical ducts, there must be two
openings located as specified above and
each must have a minimum net free area
of not less than one square inch per 4000
Btuh of the total input rating of all the
appliances in the enclosure.
If horizontal ducts are used to
communicate with the outdoors, each
opening must have a minimum net free
area of not less than one square inch per
2000 Btuh of the total input rating of all
the appliances in the enclosure. If ducts
are used, the minimum dimensions of
rectangular air ducts shall not be less than
3”.
NOTICE: If the duct openings which supply
combustion and ventilation air are to be
covered with a protective screen or grill,
the net free area (openings in the material)
of the covering material must be used
in determining the size of the openings.
Protective screening for the openings MUST
NOT be smaller than 1/4”mesh to prevent
clogging by lint or other debris.
Corrosive Atmospheres
The air in beauty shops, dry cleaning
establishments, photo processing
labs, and storage areas for liquid and
powdered bleaches or swimming pool
chemicals often contain such halogenated
hydrocarbons.
An air supply containing halogenated
hydrocarbons may be safe to breathe,
but when it passes through a gas flame
corrosive elements are released that
will shorten the life of any gas burning
appliance.
Propellants from common spray cans
or gas leaks from A/C and refrigeration
equipment are highly corrosive after
passing through a flame.
The water heater warranty is voided when
failure of the heater is due to operation in
a corrosive atmosphere.
NOTICE: The water heater
should not be installed near
an air supply containing
halogenated hydrocarbons.
Carefully inspect the water heater for damage before proceeding with the
installation. Of specific interest should be any dents or damage to the draft hood
and/or flue damper assembly. If you find damage, DO NOT install or attempt
any repair to the water heater. Contact the manufacturer as detailed under the "IF
YOU NEED SERVICE" section of this manual.
Inspect Shipment
Thermal Expansion
Determine if a check valve exists in the inlet
water line. Check with your local water
utility company. It may have been installed
in the cold water line as a separate back flow
preventer, or it may be part of a pressure
reducing valve, water meter or water softener.
A check valve located in the cold water inlet
line can cause what is referred to as a “closed
water system”. A cold water inlet line with no
check valve or back flow prevention device is
referred to as an “open” water system.
As water is heated, it expands in volume and
creates an increase in the pressure within the
water system. This action is referred to as
“thermal expansion”. In an “open” water
system, expanding water which exceeds the
capacity of the water heater flows back into
the city main where the pressure is easily
dissipated.
A “closed water system”, however, prevents
the expanding water from flowing back into the
main supply line, and the result of “thermal
expansion” can create a rapid and dangerous
pressure increase in the water heater and
system piping. This rapid pressure increase can
quickly reach the safety setting of the relief
valve, causing it to operate during each heating
cycle. Thermal expansion, and the resulting
rapid, and repeated expansion and contraction
of components in the water heater and piping
system can cause premature failure of the relief
valve, and possibly the heater itself. Replacing
the relief valve will not correct the problem!
The suggested method of controlling thermal
expansion is to install an expansion tank in
the cold water line between the water heater
and the check valve (see illustration below).
The expansion tank is designed with an air
cushion built in that compresses as the system
pressure increases, thereby relieving the over
pressure condition and eliminating the repeated
operation of the relief valve. Other methods
of controlling thermal expansion are also
available. Contact your installing contractor,
water supplier or plumbing inspector for
additional information regarding this subject.
Typical Installation
Refer to the illustration below for suggested
typical installation. The installation of unions
or flexible copper connectors is recommended
on the hot and cold water connections so that
the water heater may be easily disconnected
for servicing if necessary. The HOT and COLD
water connections are clearly marked and are
3/4” NPT on all models. Install a shut-off valve
in the cold water line near the water heater.
Water Supply Connections
IMPORTANT: Do not
apply heat to the HOT or
COLD water connections. If
sweat connections are used,
sweat tubing to adapter
before fitting adapter to the
cold water connections on
heater. Any heat applied
to the cold water supply
fittings will permanently
damage the dip tube.
NOTICE: The National
Fuel Gas Code (NFGC)
mandates a manual
gas shut-off valve: See
(NFGC) for complete
instructions. Local codes
or plumbing authority
requirements may vary
from the instructions or
diagrams provided and
take precedent over these
instructions.
9
Heat trap
6” minimum
Heat trap
6” minimum
Union
To gas supply
Sediment trap
Cap
Ground joint union
Drain Pan Pipe
to suitable drain.
Drain
valve
Relief valve discharge
line to suitable open
drain.
To cold water
supply
6” Air gap
Draft hood
Pitch up 1/4”
per foot
Auxiliary catch pan
Union
Anode
Manual gas shut-off
Thermostatic gas valve
Jacket door
Temperature and
pressure relief valve
Shut-off valve
Shut-off
valve
Thermal expansion
tank (if required)
Combustion Air
Inlet Openings
Hot water outlet to
fixtures
Water Heater Jacket
Vent connector to
chimney
Flammable Vapor Sensor
Vacuum Relief Valve
(Not Supplied)
If required, install per local codes
and valve manufacturer’s
instructions.
10
Installing the water heater.
A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves
and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22/CSA 4.6, is supplied
and must remain in the opening provided and marked for the purpose on the water heater. No valve
of any type should be installed between the relief valve and the tank. Local codes shall govern the
installation of relief valves.
Relief Valve
The pressure rating of the relief valve
must not exceed 150 psi (1,034 kPa), the
maximum working pressure of the water
heater as marked on the rating plate.
The Btuh rating of the relief valve must
equal or exceed the Btuh input of the
water heater as marked on its rating plate.
Position the outlet of the relief valve
above a suitable open drain to eliminate
potential water damage. Piping used
should be of a type approved for hot water
distribution.
The discharge line must be no smaller
than the outlet of the valve and must
pitch downward from the valve to allow
complete drainage (by gravity) of the
relief valve and discharge line.
The end of the discharge line should not
be threaded or concealed and should be
protected from freezing. No valve of
any type, restriction, or reducer coupling
should be installed in the discharge line.
To Fill the Water Heater
WARNING: The tank
must be full of water before
the water heater is turned
on. The water heater
warranty does not cover
damage or failure resulting
from operation with an
empty or partially empty
tank.
Condensation
Condensation can form on the tank
when it is first filled with water.
Condensation might also occur with a
heavy water draw and very cold inlet
water temperatures.
Drops of water falling on the burner can
produce a sizzling or pinging sound.
This condition is not unusual, and will
disappear after the water becomes heated.
If, however, the condensation continues,
examine the piping and fittings for
possible leaks.
Additional information on this subject
may be found at www.rheem.com, under
“Library”, scroll down to the Technical
Service Bulletins 1400 Series Section and
choose Bulletin #1402.
This water heater has a factory installed
flue damper device for increased energy
efficiency. Removal of the flue damper
connections will render the heater
inoperable. Do not operate the water
heater without the damper housing in
place on the damper assembly. A draft
hood is shipped with this water heater.
The draft hood must be installed on the
damper housing using the holes provided
for alignment and fastening. The damper
must be in open position as shown in the
figure when water heater main burner
is operating. See trouble shooting
instructions if a condition other than this
occurs.
Flue Damper
Follow these instructions for proper installation and operation
Make certain that the drain valve is
closed, then open the shut-off valve in the
cold water supply line.
Open each hot water faucet slowly to
allow the air to vent from the water
heater and piping.
A steady flow of water from all hot water
faucet(s) indicates a full water heater.
Do not allow the flammable vapor sensor
to become submerged in water.
11
WARNING: Do not
attempt to convert this
water heater for use with a
different type of gas other
than the type shown on the
rating plate. Such
conversion could result in
hazardous operating
conditions.
High Altitude
This water heater is suitable and certified
for use at high altitude. Refer to the
altitude information on the water heater
rating label for maximum allowable
installation altitude.
!
WARNING: Installations above the
rated altitude as specified on the altitude
label are not authorized and may result in
improper and inefficient operation of the
appliance, producing carbon monoxide gas
in excess of acceptable limits, which could
result in serious injury or death.
Pressure Testing the Gas Supply System
The water heater and its shut off valve
must be disconnected from the gas supply
piping system during any pressure testing
of that system at test pressures in excess
of 1/2 psi (3.5 kPa).
The water heater must be isolated from
the gas supply piping system by closing
it's individual manual shut off valve
during any pressure testing of the gas
supply piping system at test pressures
equal to or less than 1/2 psi (3.5 kPa)
Gas Supply
Leak Testing
The water heater and its gas connections
must be leak tested at normal operating
pressures before it is placed in operation.
Turn on the manual gas shut-off
valve near the water heater.
Use a soapy water solution to test for
leaks at all connections and fittings.
Bubbles indicate a gas leak that must
be corrected.
The factory connections to the gas control
should also be leak tested after the water
heater is placed in operation.
WARNING: Never use
an open flame to test for
gas leaks, as property
damage, personal injury, or
death could result.
The branch gas supply line to the water
heater should be clean, properly sized
steel pipe or other approved gas piping
material.
A union or ANSI design certified semi-
rigid or flexible gas appliance connector
should be installed in the gas line close to
the water heater. The National Fuel Gas
Code (NFGC) mandates a manual gas
shut-off valve: See (NFGC) for complete
instructions.
If flexible connectors are used, the
maximum length shall not exceed
36" (91.4 cm) and must meet the
requirements in ANSI Z21.24/CSA 6.10-
Connectors for Gas Appliances.
Compound used on the threaded joints of
the gas piping must be of the type resistant
to the action of LP gas. Use compound
sparingly on male threads only.
Where a sediment trap is not incorporated
as part of the appliance, a sediment trap
shall be installed downstream of the
equipment shutoff valve as close to the
inlet of the appliance as practical at the
time of the appliance installation.
Do not use excessive force over [31.5
ft. lbs. (42.7 Nm)] in tightening the pipe
joint at the gas control inlet, particularly if
teflon pipe compound is used, as the valve
body may be damaged.
The inlet gas pressure to the water
heater must not exceed 14.0 in. w.c. (3.5
kPa) w.c. for natural gas, and LP gas.
For purposes of input adjustment, the
minimum inlet gas pressure (with main
burner on) is shown on the water heater
rating plate. If high or low gas pressures
are present, contact your gas supplier for
correction.
Installing the water heater.
Wiring Diagram
CAUTION! Label all wires prior to disconnection when servicing controls. Wiring errors can cause
improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING!
R
L
C
N
DAMPER
END SWITCHES
END SWITCHES
TRANSFORMER
3 x 2 CONNECTOR VALVE
P1
P3
P2
E1
GND
P4
24 VAC
120 VAC
TSTAT
PILOT
ELECTRODE
ASSY
TS1
TS2
FV
M
1
2
3
4
5
1
2
3
1
2
3
1
1
2
SCHEMATIC
CONNECTION DIAGRAM
WV 4460E CONTROL
24 VAC
N
L
G
AX5044
TS2
BK
BK
TS1
1
2
3
BL
R
Y
W
BK
G
5
4
3
2
1
120
LCD DISPLAY OPTIONAL
TSTAT
DISPLAY
M
1
SPARK
<
>
BK = BLACK
BL = BLUE
G = GREEN
R = RED
W = WHITE
Y = YELLOW
1
2
W
W
FV
1
2
3
NUETRALNUETRAL
120 VAC
GROUNDGROUND
24 VAC
12
This water heater is factory installed with a 3-pin 24VAC wall transformer. A sufficiently long length of wire is provided
for easy access to an outlet. It is recommended that you do not use an extension cord for powering this water heater.
13
The water heater must be installed with the factory supplied draft hood in place.
Insulation Blankets
Venting
Vent connectors must be attached to the
draft hood outlet to connect the water
heater to the gas vent or chimney. The
vent connectors must be the same size
(diameter) as the draft hood or larger,
never smaller.
For proper venting in certain installations
a larger vent connector size may be
needed. Consult the Vent Tables in
Appendix G of the latest version of the
National Fuel Gas Code (ANSI Z223.1/
NFPA 54.)
Horizontal vent connectors must be
pitched upward to the chimney at least
1/4" per linear ft. Single wall vent
connectors must be at least 6” from
adjacent unprotected combustible surface.
Vent joints must be securely fastened
by sheet metal screws or other approved
method.
Test for spillage at the draft hood relief
opening after 5 minutes of main burner
operation. Use a flame of a match or
candle or smoke. The flame or smoke
should be pulled into the draft hood’s
relief opening(s). If the flame or smoke
is not pulled into the draft hood's relief
opening, shut off the water heater and
make proper adjustments/repairs to the
venting system.
Insulation blankets, available to the
general public, for external use on gas
water heaters are not necessary. The
purpose of an insulation blanket is to
reduce the standby heat loss encountered
with storage tank heaters. This water
heater meets or exceeds the National
Appliance Energy Conservation Act
standards with respect to insulation and
standby loss requirements making an
insulation blanket unnecessary.
The manufacturer’s warranty does not
cover any damage or defect caused by
installation, attachment or use of
any type of energy saving or other
unapproved devices (other than those
authorized by the manufacturer) into, onto
or in conjunction with the water heater.
The use of unauthorized energy saving
devices may shorten the life of the water
heater and may endanger life and property.
The manufacturer disclaims any
responsibility for such loss or injury
resulting from the use of such
unauthorized devices.
CAUTION: If local codes require the
application of an external insulation
blanket to this water heater, pay careful
attention to the following so as not to
restrict the proper function and
operation of the water heater:
● Do not cover the operating or warning
labels attached to the water heater or
attempt to relocate them on the exterior
of insulation blanket.
Do not apply insulation to the top of the
water heater. This will interfere with the
safe operation of the draft hood.
Do not cover the burner access door,
jacket door, gas control (thermost at)/gas
valve or pressure and temperature relief
valve.
Do not apply insulation to the bottom
of the water heater or the area where
the combustion air inlet openings are
located. This area must be unobstructed
so as not to restrict combustion air flow
to the burner.
Inspect the insulation blanket frequently
making certain it has not sagged and is
restricting the air flow to the combustion
air inlet openings (perforation holes)
located around the lower perimeter of
the water heater jacket. This could result
in an unsafe operating condition.
DANGER: Failure to
install the draft hood 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.
WARNING: If local codes
require external application
of insulation blanket kits
the manufacturer’s
instructions included with
the kit must be carefully
followed.
14
For increased energy efficiency, some
water heaters have been supplied with
two 24” sections of pipe insulation.
Please install the insulation, according
to the illustrations above, that best meets
your requirements.
DO
❑ DO check inlet gas pressure to ensure
that it is within the range specified on the
rating plate.
❑ DO provide adequate air for combustion
and ventilation as discussed in the Use and
Care Manual and the National Fuel Gas
Code.
❑ DO maintain proper clearances to
combustibles as specified on the rating plate.
❑ DO ensure that the venting system
complies with the guidelines found in the
Use and Care Manual and National Fuel Gas
Code.
❑ DO contact a qualified service technician
if the pilot or main burner will not stay
lit. The burner chamber is designed to be
sealed utilizing a gasket and tamper resistant
screws.
❑ DO ensure that the flue damper is not
obstructed and is free of debris.
DON’T
❑ DON’T block or restrict Combustion
Air Inlet Openings located around the lower
portion of the water heater jacket.
❑ DON’T remove the Burner Access
Door unless absolutely necessary. This
should only be done by a qualified service
technician. A new burner access door gasket
must be installed on any burner access door
that has been removed.
❑ DON’T install this water heater where
standing water may occur. The base of the
water heater is meant to be mounted on a dry
surface.
❑ DON’T operate the water heater if the
sight glass or burner access door grommet is
damaged or broken.
❑ DON'T manually open or close the
damper.
Typical vertical piping arrangement
Typical horizontal piping arrangement
During Installation of this water heater...........
Heat Trap
Hot and Cold Pipe Insulation Installation
For increased energy efficiency, some
water heaters have been supplied with
factory installed 3/4” NPT heat traps in
the hot outlet line and cold water inlet line.
These heat traps may require a minimum
of one (1) 90°, 3/4” NPT elbow and may
require an additional 90°, 3/4” NPT elbow
or a 3/4” coupling depending on your
installation needs. See Illustration of
nipples and heat traps in the "Replacement
Parts" section of this manual.
Burner Access
Door Grommet
Sight Glass
Installing the water heater.
Flammable
Vapor Sensor
Installation Checklist
A. Water Heater Location
B. Water Supply
C. Gas Supply
D. Relief Valve
E. Venting
❑ Close to area of vent.
❑ Indoors and protected from freezing
temperatures.
❑ Proper clearance from combustible surfaces
observed and water heater not installed on
carpeted floor.
❑ Sufficient fresh air supply for proper
operation of water heater.
❑ Air supply free of corrosive elements and
flammable vapors.
❑ Provisions made to protect area from water
damage.
❑ Sufficient room to service heater.
❑ Combustible materials, such as clothing,
cleaning materials, rags, etc. clear of the
base of the heater.
❑ Clearances from combustion air-inlet
openings observed (see page 7).
❑ Flammable vapor sensor is not blocked.
❑ Water heater completely filled with water.
❑ Air purged from water heater and piping.
❑ Water connections tight and free of leaks.
❑ Gas line equipped with shut off valve,
union and sediment trap.
❑ Approved pipe joint compound used.
❑ Soap and water solution used to check all
connections and fittings for possible gas leak.
❑ Gas Company inspected installation (if
required).
❑ Temperature and Pressure Relief Valve
properly installed and discharge line run to
open drain.
❑ Discharge line protected from freezing.
❑ Flue baffle properly hung in water heater’s
flue tube.
❑ Draft hood properly installed on damper
housing.
❑ Vent connector(s) pitched upward to chimney
or vent (¼" per linear foot minimum) .
❑ Vent connector(s) securely fastened together
with screws.
❑ Single wall vent connector(s) at least 6"
from combustible material.
❑ Flue damper properly installed and operating
normally.
F. Wiring
❑ Correct power supply (24 VAC) transformer.
❑ Electrical connection tight.
❑ Heater properly grounded and proper polarity
observed.
15
Tee fitting for vertical hot
water supply lines.
Hot water
supply to
house
From HOT
outlet on
water heater
Hot water
supply to
heating
unit
Supplemental instructions for gas water heaters installed in
potable/space heating applications.
Local codes or plumbing authority requirements may vary from the instructions or diagrams provided in this
manual and take precedent over these instructions.
Tee fitting for horizontal hot
water supply lines.
From HOT
outlet on
water heater
Hot water
supply to
house
Hot water supply
to heating unit
Combination Potable and Space Heating Application
Tee fitting must be installed as shown. This
ensures that any air in the water lines will be
purged through the domestic water faucets and
showers.
DANGER: When this system requires
water for space heating at elevated
temperatures (above 125°F [52°C.]), a mixing
or tempering valve must be installed in the
hot water supply line to the house in order to
reduce the scald hazard potential.
DANGER: Any piping or components used
in the installation of this water heater in a
combination potable and space heating
application must be suitable for use with
drinking water.
DANGER: If this water heater is installed
in an application intended to supply domestic
hot water needs and hot water for space
heating purposes, do not connect the heater
to an existing heating unit or components of
a heating system that have previously been
used with a non drinking water system. Toxic
chemicals such as those used for boiler
treatment may be present and will
contaminate the drinking water supply
causing possible health risks. Never
introduce toxic chemicals, such as those used
for boiler treatment, into this system.
Notice: 50' - 0" maximum distance
from water heater to fan coil
(developed length) is required for
Massachusetts State.
Typical Piping Diagram for Combination Potable/Space Heating Installation
Spring loaded check valve in heating unit
hot water supply line and cold water return
line (not supplied with water heater)
NOTE: This check valve is incorporated
in some heating units. Refer to the
installation instructions supplied with
specific heating unit to determine if it is
required.
Isolation valve in
cold water return line
from heating unit (not
supplied with water
heater)
Nominal 3/4" size mixing or tempering valve
(refer to warning above). Follow mixing or
tempering valve manufacturer’s instructions for
installation of the valve.
Temperature and pressure relief
valve discharge line
Air Handler
Drain valve
(not supplied with
water heater)
Hot water
to space heater
Temperature and Pressure Relief
Valve, tie to location approved by
local code
See diagrams above for proper
pipe application for vertical
or horizontal supply lines.
Isolation valve in hot water supply line
to heating unit (not supplied with water
heater)
3/4" cold water supply
3/4" Tempered
domestic hot water
supply to house.
Gas line to water heater
6” Air Gap
Combustion Air Inlet
Openings
2 Gallon Thermal
Expansion Tank (if
required-not supplied
with water heater)
Air vent
Heat Trap
6” Min.
3/4" Shut-Off Valve (Typ.)
3/4" Check Valve with 1/8" Hole
Pressure Gauge
3/4" Shut-Off Valve (Typ.)
3/4" Shut-
Off Valve
(Typ.)
Hot water coil
All bronze pump.
Check valve
internal in pump.
Air bleed valve.
Water Sample Tap.
T
FAN
ON
OFF
HEAT
COOL
To HVAC Unit.
Electronically controlled pump timer.
Activates every 6 hours for 60 seconds.
Wire to bronze pump.
3/4" HWS & HWR
to Heating Coil.
Minimum of 2'-0" developed
length of 3/4" pipe.
Water Heater drain pan installed in
accordance with the Local and State
Code
Water Heater to be in accordance with
the Local and State Energy Code
Gas Fired
Water Heater
Gas Direct Vent discharge
must comply with Local
and State Code
120°
t
o
130
°
1
4
0
°
16
Vacuum Relief Valve
(Not Supplied)
If required, install per local codes
and valve manufacturer’s
instructions.
All water heater piping shall be
insulated in accordance with Local
and State Energy Code.
17
Lighting the water heater.
Before operating this water heater, be sure to read and follow the instructions on the label pictured
below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to
do so can result in unsafe operation of the water heater resulting in property damage, personal injury,
or death . Should you have any problems reading or following the instructions in this manual, STOP,
and get help from a qualified person.
18
Safety Precautions
Do turn off manual gas shut off valve if water heater
has been subjected to over heating, fire, flood,
physical damage or if the gas supply fails
to shut off.
Do Not turn on water heater unless it is completely
filled with water.
Do Not turn on water heater if cold water supply shut
off valve is closed.
Do Not allow combustible materials such as
newspaper, rags or mops to accumulate near
water heater.
Do Not store or use gasoline or other flammable
vapors and liquids, such as adhesives or paint thinner,
in vicinity of this or any other appliance.
If such flammables must be used, open doors
and windows for ventilation, and all gas burning
appliances in the vicinity should be shut off including
their pilot burners, to avoid vapors lighting.
NOTICE: Flammable vapors can be drawn by air
currents from surrounding areas to the water heater.
If there is any difficulty in understanding or following
the Operating Instructions or the Care and Cleaning
section, it is recommended that a qualified person or
serviceman perform the work.
Operating the water heater.
CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a
long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE!! To dissipate such
gas and to reduce risk of injury, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink
before using any electrical appliance connected to the hot water system. If hydrogen is present, there will be an unusual sound
such as air escaping through the pipe as the water begins to flow. Do not smoke or use an open flame near the faucet at the
time it is open.
!
DANGER: Hotter water
increases the Potential
for Hot Water SCALDS.
Households with small
children, disabled, or elderly
persons may require a
120°F or lower gas control
(thermostat) setting to
prevent contact with HOT
water.
Water Temperature Setting
The temperature of the water in the water
heater can be regulated by setting the
temperature dial on the front of the gas
control (thermostat).
Safety and energy conservation are factors
to be considered when selecting the water
temperature setting of the water heater’s
gas control (thermostat). The lower the
temperature setting, the greater the savings
in energy and operating costs.
To comply with safety regulations, the gas
control (thermostat) was set at its lowest
setting before the water heater was shipped
from the factory. The recommended
starting point temperature is 120°F.
Water temperatures above 125°F
can cause severe burns or death from
scalding. Be sure to read and follow the
warnings outlined in this manual and on
the label located on the water heater near
the gas control thermostat.
Mixing valves are available for reducing
point of use water temperature by mixing
hot and cold water in branch water
lines. Contact a licensed plumber or
the local plumbing authority for further
information.
The chart on the next page may be used
as a guide in determining the proper water
temperature for your home.
This water heater is equipped with an
ignition device which automatically
lights the pilot. Do not try to light the
pilot by hand. On initial start-up, it is
recommended that the outer door be
removed (leave inner door in place for
safety) to determine if the pilot and main
burner are operating properly.
Once filled with water, plug in the
electrical supply cord and slide the “ON/
OFF” switch located on the front of the
combination gas control to the “ON”
position. Set the thermostat dial to the
desired setting.
After the pilot and main burner ignite,
replace the outer door. If no pilot and
main burner flames are established, the
combination gas control will go through
three trials for ignition before going into
a “lock-out” mode. A warning light will
alert the user of this “lock-out” mode
condition. If this happens, refer to the
“Gas valve LED codes.”
Operating Procedure
!
19
Maximum water temperatures occur just after the burner
has shut off. To determine the water temperature, turn on
a hot water faucet and place a thermometer in the water
stream.
A condition known as “stacking” or “layering” can occur
when a series of short and frequent hot water draws are
taken.
The hottest temperature water will be at the top of the tank,
closest to the outlet pipe delivering hot water to the home.
Stacking can cause this top layer of water to be hotter than
the water toward the bottom of the tank near the gas control
(thermostat). Therefore, always remember to test the water
temperature with your hand before use and remember that
hotter water increases the risk of scald injury.
Also, always supervise young children or others who are
incapacitated.
The gas control (thermostat) is constructed with a built in
safety shutoff device designed to shut off the gas supply to
the burner if the main burner is extinguished for any reason.
The gas control (thermostat) is also equipped with a gas
shutoff device that will shut off the gas supply to the burner
if the water heater exceeds normal operating temperatures.
Refer to the “Before You Call For Service” section of this
manual, or contact your dealer.
!
WARNING: Should overheating occur or the gas
supply fail to shut off, turn off the manual gas control
valve to the appliance
NOTICE: Replace any part of the gas control system
which has been under water.
If the water heater has been subjected to re, ood or physi-
cal damage, turn off the manual gas control (shutoff) valve
and do not operate the water heater again until it has been
checked by a qualied service technician.
Time/Temperature Relationship in Scalds
Water Temperature Time To Produce a Serious Burn
120°F More than 5 minutes
125°F 1
1
/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1
1
/2 seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute
Water Temperature Setting…
90° F
113°F
98°F
105°F
120°F
130°F
140°F
150°F
160°F
Temperatures are approximate
20
Care and cleaning of the water heater.
Draining the Water Heater
CAUTION: Shut off gas to the water
heater at the manual gas shutoff valve
before draining water.
DANGER: Before manually operating
the temperature and pressure relief valve,
make certain no one will be exposed to the
hot water released by the valve. The water
drained from the tank may be hot enough
to present a scald hazard and should be
directed to a suitable drain to prevent injury
or damage.
Before turning off the cold water supply to
the water heater, open a hot water faucet
allowing sufficient cold water into the
tank to prevent the risk of a scald injury
while draining the water heater. Once the
water in the tank is no longer hot, turn off
the cold water supply to the water heater.
Open a hot water faucet or lift the handle
on the relief valve to admit air to the tank.
Attach a garden hose to the drain
valve on the water heater and direct
the stream of water to a drain. Open
the valve.
Housekeeping
Make sure the flammable vapor sensor is
not blocked or obstructed.
To ensure sufficient ventilation and
combustion air supply, proper clearances
must be maintained.
When installed in a closet, DO NOT
block or obstruct any of the combustion air
inlet openings located around the perimeter
of the water heater. A minimum of 1” is
required between these combustion air inlet
openings and any obstruction.
Routine Preventative Maintenance
Properly maintained, your water heater
will provide years of dependable trouble-
free service.
It is recommended that a periodic
inspection of the gas control (thermostat),
burner, relief valve, internal flue-way and
venting system should be made by service
personnel qualified in gas appliance repair.
It is suggested that a routine preventative
maintenance program be established and
followed by the user.
Periodically, lift and release the lever
handle on the temperature pressure relief
valve, located near the top of the water
heater, to make certain the valve operates
freely. Allow several gallons to flush
through the discharge line to an open drain.
NOTICE: If the temperature and
pressure relief valve on the hot water
heater discharges periodically, this
may be due to thermal expansion in a
closed water system. Contact the water
supplier or your plumbing contractor on
how to correct this. DO NOT plug the
relief valve outlet.
A water heater’s tank can act as a settling
basin for solids suspended in the water.
It is therefore not uncommon for hard
water deposits to accumulate in the bottom
of the tank. If allowed to accumulate,
these solids can cover the gas control
(thermostat) sensors, causing the sensors to
operate erratically. Because accumulated
solids can prevent the gas control
(thermostat) sensors from accurately
reading the water temperature, the water
at the fixture can be hotter than the gas
control (thermostat) dial setting. It is
suggested that a few quarts of water be
drained from the water heater’s tank every
month to clean the tank of these deposits.
Rapid closing of faucets or solenoid valves
in automatic water using appliances can
cause a banging noise heard in a water
pipe. Strategically located risers in the
water pipe system or water hammer
arresting devices can be used to minimize
the problem.
The anode rod should be removed from the
water heater’s tank annually for inspection
and replaced when more than 6” of core
wire is exposed at either end of the rod.
Make sure the cold water supply is turned
off before removing anode rod.
This water heater incorporates a
combustion shut off device that shuts
the operation of the water heater down if
undesirable combustion conditions occur,
such as the presence of flammable vapors
or blockage of the combustion air inlet
openings. Please contact a Qualified
Service Technician if this occurs.
DANGER: Before
manually operating the
relief valve, make certain
no one will be exposed to
the danger of the hot water
released by the valve. The
water may be hot enough to
create a scald hazard. The
water should be released
into a suitable drain to
prevent injury or property
damage.
!
DANGER: Combustible
materials, such as clothing,
cleaning materials, or
flammable liquids, etc., must
not be placed against or next
to the water heater.
!
DANGER: Failure to
perform the recommended
Routine Preventative
Maintenance can harm the
proper operation of this
water heater, which can cause
carbon monoxide dangers,
excessive
hot water temperatures and
other potentially hazardous
conditions.
DANGER: Hotter water
increases the potential for
Hot Water Scalds.
!
!
!
!
21
Venting System Inspection
The water heater’s internal flue must be
inspected periodically to be certain it is
clean by removing the flue damper, draft
hood, and flue baffle.
When reinstalling the flue baffle make
certain it is hung securely by its collar at
the top of the flue way.
Reinstall the flue damper and the draft
hood.
Inspect the gas venting system and/or the
chimney.
Make certain the vent connector from
the draft hood to the vent system and/or
the chimney is properly positioned and
securely attached.
If after inspection of the vent system
you found soot or deterioration;
call the local gas utility to correct the
problem and clean the flue, or replace
the flue baffle, and venting system before
resuming operation of the water heater.
Test for spillage at the draft hood relief
opening after 5 minutes of burner
operation. Use a flame of a match or
candle or smoke. The flame or smoke
should be pulled into the draft hood’s
relief opening(s). If the flame or smoke
is not pulled into the draft hood's relief
openings, shut off the water heater and
make proper adjustments/repairs to the
venting system.
Burner Inspection
Visually inspect the pilot burner and main
burners periodically.
Through the sight glass, inspect the pilot
burner flame with the main burner off and
inspect the main burner while firing.
If any unusual burner operation is noted,
the water heater should be shut off
until qualified service assistance can be
obtained.
CAUTION: For your safety, cleaning
of the burner must be performed only by
qualified service personnel. The burner
chamber is a sealed area. If the burner
access door is removed, the burner access
door gasket must be replaced.
For cleaning, remove the burner from the
water heater. A vacuum cleaner can be
used on the burner and floor shield inside
the water heater. The burner can also be
cleaned by scrubbing with mild detergent.
Proper burner and pilot burner
pattern.
Vacation and Extended Shut-Down
If the water heater is to remain idle for an
extended period of time, the power and
water to the appliance should be turned off
to conserve energy and prevent a build-up
of dangerous hydrogen gas.
The water heater and piping should be
drained if they might be subjected to
freezing temperatures.
After a long shut-down period, the
water heater’s operation and controls
should be checked by qualified service
personnel. Make certain the water heater
is completely filled again before placing it
in operation.
NOTICE: Refer to the
Hydrogen Gas Caution in the
Operating Instructions.
Anode Rod
This water heater is equipped with an
anode rod designed to prolong the life
of the glass lined tank. The anode rod is
slowly consumed, thereby eliminating or
minimizing corrosion of the glass lined
tank.
Water sometimes contains a high sulfate
and/or mineral content and together with
cathodic protection process can produce
a hydrogen sulfide, or rotten egg odor in
the heated water. Chlorination of the water
supply should minimize the problem.
NOTICE: Do not remove
the anode rod from the water
heater’s tank, except for
inspection and/or replacement,
as operation with the anode
rod removed will greatly
shorten the life of the glass
lined tank and will exclude
warranty coverage.
!
Care and cleaning of the water heater.
22
Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the charts on the following pages first and you may not need to call for service.
This water heater incorporates a combustion shut off device that shuts the operation of the water heater
down if undesirable combustion conditions occur, such as the presence of flammable vapors or blockage of
the combustion air inlet openings. Please contact a Qualified Service Technician if this occurs.
CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors,
dampers, or other safety devices. Refer repairs to qualified service personnel.
Problem Possible Causes What To Do
Condensation
This usually happens when a
new heater is lled for the rst
time
• This is normal. After the water in the tank warms
up, the condensation will disappear. If, however, the
condition persists, examine the piping and ttings for
possible leaks. Refer to the "Condensation" informa-
tion in the "Installing the Water Heater" section of this
manual.
Moisture from the products of
combustion condensing on the
tank surface.
• This is normal and will disappear in time. Excessive
condensation can cause main burner outage. Refer to
the "Condensation" information in the "Installing the
Water Heater" section of this manual.
An undersized water heater will
cause condenstion.
• Use a water heater size that meets the requirements of
your needs.
Yellow flame
or soot
Scale on top of the burner. • Contact a qualied service technician to purge air from
the gas line.
Flue or combustion air inlet
openings are restricted.
• Remove obstruction or debris from ue or combustion
air inlet openings on water heater jacket.
Not enough combustion or ven-
tilation air supplied to the water
heater location.
• Proper operation of the water heater requires air for
combustion and ventilation. See the "Combustion and
Ventilation Air" information in the "Installing the Water
Heater" section of this manual.
Unable to light
main burner
Air in gas line. • Contact a qualied service technician to purge air from
the gas line.
Pilot burner orice clogged. • Pilot should be cleaned or replaced by a qualied ser-
vice technician.
Pilot burner tube pinched or
clogged.
• The pilot burner should be cleaned, repaired, or re-
placed by a qualied service technician.
Damper unable to open. • Contact a qualied service technician to evaluate
damper.
• Refer to "Gas Valve Error Codes" in the "Gas Valve
LED Codes" section of this manual.
Wire connection(s) not fully
secured.
• Contact a qualied service technician to conrm wire
connection(s).
Combustion shut-off device
tripped.
• Combustion shut-off device should be inspected by a
qualied service technician.
Gas control (thermostat) prob-
lem.
• Contact a qualied service technician.
• Refer to "Gas Valve Error Codes" in the "Gas Valve
LED Codes" section of this manual.
Main burner does not
stay lit
Combustion shut-off device
tripped.
• Combustion shut-off device should be inspected by a
qualied technician.
Gas control (thermostat) shut-
off device tripped.
• Contact a qualied service technician.
23
Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the charts on the following pages first and you may not need to call for service.
This water heater incorporates a combustion shut off device that shuts the operation of the water heater down
if undesirable combustion conditions occur, such as the presence of flammable vapors or blockage of the
combustion air inlet openings. Please contact a Qualified Service Technician if this occurs.
CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors,
dampers, or other safety devices. Refer repairs to qualified service personnel.
Problem Possible Causes What To Do
Rumbling noise
Scale and sediment • Drain the water heater to remove scale and sediment
from the tank. Refer to the "Drain the Water Heater"
information in the "Care and Cleaning of the Water
Heater" section of this manual.
Relief valve
producing popping
noise or draining
Pressure build up caused
by thermal expansion to a
closed system.
• This is an unacceptable condition and must be cor-
rected. Contact the water heater supplier or plumb-
ing contractor on how to correct this. Do not plug
the relief valve outlet.
Not enough or no hot
water
Water usage may have
exceeded the capacity of
the water heater.
• Wait for the water heater to recover after an abnor-
mal demand.
Low gas pressure • Check gas supply pressure and manifold pressure.
The gas control (thermo-
stat) may be set too low.
• Refer to the "Water Temperature Setting" informa-
tion in the "Installing the Water Heater" section of
this manual.
Leaking or open hot wa-
ter faucets.
• Make sure all faucets are closed.
Check valve error codes. • Refer to the "Gas Valve Error Codes" information in
the "Gas Valve LED Codes" section of this manual.
"ON/OFF" switch turned
off.
• Turn "ON".
Gas control (thermo-
stat) shut-off device has
tripped.
• Contact a qualied service technician.
Combustion shut-off
system tripped.
• Contact a qualied service technician.
Water is too hot
Gas control (thermostat)
is set too high.
• See the "Water Temperature Setting" in the "Install-
ing the Water Heater" section of this manual.
Gas control (thermostat)
is defective.
• Contact a qualied service technician to replace the
gas control (thermostat).
24
Gas Valve LED Codes
CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING.
CAUTION: For your safety DO NOT attempt repair of gas piping, remote control, burners, vent connectors or other
safety devices. Refer repairs to qualified service personnel.
GAS VALVE LED STATUS/PROBLEM PROBABLE CAUSE SOLUTION
Short ash once ev-
ery four seconds
Normal Operating
Condition/ No Fault
Condition
Water Temperature setpoint has been
achieved
None required
“Heartbeat”, alter-
nates bright/dim
Calling For Heat/No
Fault Conditions
Water temperature is below setpoint
and burner is on
None required
One Flash, three
second pause
Control still operating/
Low ame signal
• Pilot tube restricted or damaged
• Carbon build-up on pilot's electrode
• Pilot igniter wire damaged
• Gas supply problems
• Replace Pilot assembly
• Correct gas supply
Two Flashes, three
second pause.
Sytem in Lockout/Flue
Damper Switch closed
• Flue Damper improperly sealed
• Flue Damper switch stuck closed
• Faulty Flue Damper motor
• Obstruction or debris in damper
opening
• Inspect Flue Damper wiring and
connections
• Replace Flue Damper Assembly
• Contact a qualied service techni-
cian. See "IF YOU NEED SER-
VICE" on page 28
Three Flashes, three
second pause
System in Lockout/Flue
Damper Switch open
• Flue Damper improperly installed
• Flue Damper switch stuck open
• Faulty Flue Damper switch
• Incorrect wiring and/or connections
• Faulty Flue Damper motor
• Obstruction or debris in damper
opening
• Inspect wiring and connections
• Replace Flue Damper Assembly
• Contact a qualied service techni-
cian. See "IF YOU NEED SER-
VICE" on page 28
Four Flashes, three
second pause
System in Lockout/
Thermal Cutoff Device
tripped
• Thermal well fault in Gas Control
(Thermostat)
• Gas Control (Thermostat) faulty
• Tank not lled with water
• Reset Gas Control (Thermostat) and
check for proper cycling of control.
• Replace Gas Control (Thermostat)
• Ensure tank is completely lled
with water
Five Flashes, three
second pause
System in Lockout/No
Flame Sense
Pilot and/or Main Burner valve has
failed to open
Replace the Gas Control (Thermostat)
Six-One Flashes,
three second pause
System in Lockout/
Unit failed to light
• Pilot ame unstable
• Pilot tube restricted or damaged
• Carbon build-up on pilot's electrode
• Pilot igniter wire damged
• Gas supply problem(s)
• Replace Pilot assembly
• Correct gas supply
Six-Two Flashes,
three second pause
System in Lockout/
Flue Damper Switch
opened
• Improper Flue Damper installation
• Faulty Flue Damper switch
• Incorrect wiring and/or connections
• Inspect Flue Damper wiring and
connections
• Replace Flue Damper Assembly
• Contact a qualied service techni-
cian. See "IF YOU NEED SER-
VICE" on page 28
Six-Three Flashes,
three second pause
System in Lockout/
Flame Lost
• Combusstion air supply restricted
or blocked
• Pilot tube restricted or damaged
• Carbon build-up on pilot's electrode
• Pilot igniter wire damaged
• Gas supply problem(s)
• Ensure combustion air supply is not
blocked or restricted
• Replace Pilot assembly
• Correct gas supply
GAS VALVE LED STATUS/PROBLEM PROBABLE CAUSE SOLUTION
Six-Four Flashes,
three second pause
System in Lockout/
Flame sense out of
sequence
Gas Control (Thermostat's) valve
stuck open
Replace Gas Control (Thermostat)
Seven Flashes, three
second pause
System in Lockout/
Presence of Flamma-
ble Vapors detected
• Gasoline or other ammable
vapor(s) were detected
• Faulty Flammable Vapor Sensor
• Faulty Gas Control (Thermo-
stat)
• Ensure that no ammable vapor(s)
are present
• Reset the Gas Control (Thermostat)
using "ON/OFF" switch located on
the front of the control
• Replace Flammable Vapor Sensor
• Replace Gas Control (Thermostat)
Eight-One Flash,
three second pause
System in Lockout/
Flammable Vapor
Sensor fault detected
• Flammable vapor sensor values
out of range
• Improper Flammable Va-
por Sensor wiring and/or
connection(s)
• Faulty Flammable Vapor Sensor
• Inspect the Flammable Vapor Sen-
sor wiring and connection(s)
• Replace Flammable Vapor Sensor
• Replace Gas Control (Thermostat)
Eight-Two Flashes,
three second pause
System in Lockout/
Energy cutoff device
fault detected
• Thermal well fault in Gas Con-
trol (Thermostat)
• Inspect the wiring connection(s) to
the thermal well
• Replace the thermal well
Eight-Three Flashes,
three second pause
System in Lockout/
Fault in the electronics
circuit detected
• Thermal well fault in Gas Con-
trol (Thermostat)
• Faulty Gas Control (Thermo-
stat)
• Replace thermal well
• Replace Gas Control (Thermostat)
Eight-Four Flashes,
three second pause
System in Lockout/
Fault with the Gas
Control (Thermostat)
• Gas Control (Thermostat) needs
to be reset
• Gas Control (Thermostat) has
been damaged
• Cycle the power to the Gas Control
(Thermostat)
• Replace the Gas Control (Thermo-
stat)
Gas Valve LED Codes cont.....
25
CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING.
CAUTION: For your safety DO NOT attempt repair of gas piping, remote control, burners, vent connectors or other
safety devices. Refer repairs to qualified service personnel.
Draft Hood
Flue Baffle and Hanger
Anode Rod
*Heat Trap
*Heat Trap
*Nipple
*Nipple
Dip Tube
Dip Tube Gasket
Drain Valve
Temperature and Pressure
Relief Valve
Gas Control (Thermostat)
Burner Supply Tube
Burner
Jacket Door
Burner Access Door Grommet
Sight Glass
Burner Access Door
Burner Access Door Gasket
Pilot Supply Tube
Burner Orifice
Ignitor
Burner Assembly Kit
The kit provides extra speed clips
and tamper resistant screws.
*Not supplied with all models.
26
Replacement Parts.
For 38, 40, and, 50 gallon models using natural or LP gas.
Instructions For Placing a Parts Order
All parts orders should include:
The model and serial number of the
water heater from the rating plate.
Specify type of gas (Natural or LP)
as marked on the rating plate.
Part description (as noted below) and
number of parts desired.
CAUTION: For your safety, DO
NOT attempt repair of gas piping,
Gas Control (Thermostat), burners,
vent connectors or other safety devices.
Refer repairs to qualified service
personnel.
Flue DamperHousing
Gas Control (Thermostat's)
Thermal Well
Transformer
Flue Damper
Use only original equipment
replacement parts.
27
Notes:
IF YOU NEED SERVICE
1. Should you have any questions about your new water heater, or if it requires adjustment, repair,
or routine maintenance, it is suggested that you first contact your installer, plumbing contractor or
previously agreed upon service agency. In the event the firm has moved, or is unavailable, refer to the
telephone directory, commercial listings or local utility for qualified service assistance.
2. Should your problem not be solved to your complete satisfaction, you should then contact the
Manufacturer’s National Service Department at the following address:
1241 Carwood Court
Montgomery, Alabama 36117
Phone: 1-800-432-8373.
When contacting the manufacturer, the following information will be requested:
a. Model and serial number of the water heater as shown on the rating plate attached to the jacket of the
heater.
b. Address where the water heater is located and physical location.
c. Name and address of installer and any service agency who performed service on the water heater.
d. Date of original installation and dates any service work was performed.
e. Details of the problems as you can best describe them.
f. List of people, with dates, who have been contacted regarding your problem.
28
The Commonwealth of Massachusetts requires compliance with regula-
tion 5.08: Modications to NFPA-54, Chapter 10 : 248 CMR 4.00
and 5.00 for installation of through – the – wall vented gas appliances as
follows:
(1) Revise NFPA-54 section 10.5.4.2 by adding a second exception as fol-
lows:
Existing chimneys shall be permitted to have their use continued when a gas
conversion burner is installed, and shall be equipped with a manually reset
device that will automatically shut off the gas to the burner in the event of a
sustained back-draft.
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment installed in
every dwelling, building or structure used in whole or in part for residential
purposes, including those owned or operated by the Commonwealth and
where the side wall exhaust vent termination is less than seven (7) feet above
nished grade in the area of the venting, including but not limited to decks
and porches, the following requirements shall be satised:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time
of installation of the side wall horizontal vented gas fueled equipment, the
installing plumber or gastter shall observe that a hard wired carbon monox-
ide detector with an alarm and battery back-up is installed on the oor level
where the gas equipment is to be installed. In addition, the installing plumber
or gastter shall observe that a battery operated or hard wired carbon mon-
oxide detector with an alarm is installed on each additional level of the dwell-
ing, building or structure served by the side wall horizontal vented gas fueled
equipment. It shall be the responsibility of the property owner to secure the
services of qualied licensed professionals for the installation of hard wired
carbon monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equipment is
installed in a crawl space or an attic, the hard wired carbon monoxide detec-
tor with alarm and battery back-up may be installed on the next adjacent oor
level.
b. In the event that the requirements of this subdivision can not be met at the
time of completion of installation, the owner shall have a period of thirty (30)
days to comply with the above requirements; provided, however, that during
said thirty (30) day period, a battery operated carbon monoxide detector with
an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon
monoxide detector as required in accordance with the above provisions shall
comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certied.
3. SIGNAGE. A metal or plastic identication plate shall be permanently
mounted to the exterior of the building at a minimum height of eight (8) feet
above grade directly in line with the exhaust vent terminal for the horizon-
tally vented gas fueled heating appliance or equipment. The sign shall read,
in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION. The state or local gas inspector of the side wall horizon-
tally vented gas fueled equipment shall not approve the installation unless,
upon inspection, the inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1
through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR
5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To
Be Vented" in the most current edition of NFPA 54 as adopted by the Board;
and
2. Product Approved side wall horizontally vented gas fueled equipment in-
stalled in a room or structure separate from the dwelling, building or structure
used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING
SYSTEM PROVIDED. When the manufacturer of Product Approved side
wall horizontally vented gas equipment provides a venting system design or
venting system components with the equipment, the instructions provided
by the manufacturer for installation of the equipment and the venting system
shall include:
1. Detailed instructions for the installation of the venting system design or
the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING
SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved
side wall horizontally vented gas fueled equipment does not provide the parts
for venting the ue gases, but identies "special venting systems", the fol-
lowing requirements shall be satised by the manufacturer:
1. The referenced "special venting system" instructions shall be included with
the appliance or equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board,
and the instructions for that system shall include a parts list and detailed
installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall
horizontally vented gas fueled equipment, all venting instructions, all parts
lists for venting instructions, and/or all venting design instructions shall
remain with the appliance or equipment at the completion of the installation.
Important Instructions for the Commonwealth of Massachusetts
