!

Warning: This water heater is not suitable

for use in manufactured (mobile) homes!
Use.&.Care.Manual
With.Installation.Instructions.for.the.Installer

Residential.Gas.-.FVIR Certified

Water.Heaters
WITH.DAMPER.&.ELECTRONIC.CONTROL
Residential.38,.40,.and.50.Gallon
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 .

. ARNING: If the information in these instructions is not followed exactly,

W
! a fire or explosion may result causing property damage, personal injury or death.

! .. FOR
YOUR SAFETY!
—. Do not store or use gasoline or other ● I. f you cannot reach your gas supplier, call
flammable vapors or liquids or other the fire department.
combustible materials in the vicinity of this or ●D
. o not return to your home until authorized
any other appliance. To do so may result in an by the gas supplier or fire department.
explosion or fire.
—..Improper installation, adjustment, alteration,
—. WHAT TO DO IF YOU SMELL GAS service or maintenance can cause property
● Do not try to light any appliance. damage, personal injury, or death. Refer to
this manual. Installation and service must be
● .Do not touch any electrical switch; do not
performed by a qualified installer, service
use any phone in your building.
agency or the gas supplier.
● .Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.

DESIGN El.manual.en.Español.está.disponible.en.www .rheem .com .

CER
TIFIED ® AP15756.(05/10)
Printed in USA
Safety Information
Safety Precautions. . . . . . . 3–6
FOR YOUR RECORDS
LP Gas Models . . . . . . . . . . . . 5
Write the model and serial numbers here:
#

Installation Instructions
#
You can find them on a label on the appliance.
Location. . . . . . . . . . . . . . . . . . 7
Water Supply Connections. . . 9
Staple sales slip or cancelled check here.
Proof of the original purchase date is needed to obtain service under
Flue Damper . . . . . . . . . . . . . 10
the warranty.
Gas Supply. . . . . . . . . . . . . . . 11
Pipe Insulation. . . . . . . . . . . . 14
Heat Traps . . . . . . . . . . . . . . . 14
Installation Checklist. . . . . . . 15 READ THIS MANUAL
Potable/Space Heating . . . . 16 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.
Operating Instructions You’ll find many answers to common problems in
Lighting Instructions. . . . . . 17 the Troubleshooting Guide. If you review the chart of
Troubleshooting Tips first, you may not need to call for service.
Water Temperature . . . . . 18, 19

READ THE SAFETY INFORMATION

Care and Cleaning Your safety and the safety of others are very important. There
Draining. . . . . . . . . . . . . . . . 20 are many important safety messages in this manual and on your
appliance. Always read and obey all safety messages.
Maintenance. . . . . . . . . . . . . 20
Burner Inspection . . . . . . . . 21 This is the safety alert symbol. Recognize this symbol as an
Extended Shut-Down. . . . . . 21
!
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
Troubleshooting Tips either the word “DANGER”, “WARNING”, “CAUTION” or
“NOTICE”.
Before You Call. These words mean:
For Service. . . . . . . . . . . 22, 23
LED Codes. . . . . . . . . . . . 24, 25
! 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
Customer Service and/or damage to property.
Parts List. . . . . . . . . . . . . . . . 26 ! CAUTION A potentially hazardous situation that
may result in minor or moderate
If You Need Service . . . . . . . 28 injury.

Notice: Attention is called to observe a

specified procedure or maintain
a specific condition.
2
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
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.

! DANGER!
Install the draft hood and properly vent the
water heater…
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.

! WARNING!
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.

3
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
! 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.
Time/Temperature Relationship in Scalds
Water Temperature Time To Produce a Serious Burn
! DANGER 120°F
125°F
More than 5 minutes
11/2 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 11/2 seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute

The chart shown above may be used as a guide .

HOT 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.
BURN 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
Water temperature over 125° F (52°C) thermometer.(See page 18 and 19 for more details.)
can cause severe burns The temperature of the water in the heater can be
instantly or death from scalds. regulated by setting the temperature dial on the front
of the gas control (thermostat). To comply with
Children, disabled and elderly are safety regulations the gas control (thermostat) was
at highest risk of being scalded. set at its lowest setting before the water heater was
See instruction manual before shipped from the factory.
setting temperature at water  he illustration below details the approximate water
T
heater. temperature for each mark on the Gas Control
(Thermostat) Temperature Dial.
Feel water before bathing or
showering.
 ! DANGER: Hotter water increases the potential for
Temperature limiting valves are Hot Water SCALDS.
available, see manual.
Valve Set Estimated
Point Temperature Burns on Adult Skin
LOW 90°F ------------------------
Notice: Mixing valves are available for reducing ● 98°F ------------------------
point of use water temperature by mixing hot and ● 105°F ------------------------
cold water in branch water lines. Contact a licensed ● 113°F ------------------------
HOT 120°F More than 5 minutes
plumber or the local plumbing authority for A 130°F About 30 seconds
further information. B 140°F Less than 5 seconds
C 150° About 1-1/2 seconds
VERY HOT 160°F About 1/2 second
4
 ! DANGER!
liquefied petroleum (LP - Propane or butane)
and Natural gas models
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.
● Water heaters utilizing LP gas are ! DANGER: If a gas leak is present or
different from natural gas models. A suspected:
natural gas water heater will not function
safely on LP gas and vice versa. ● Do not attempt to find the cause yourself.

● No attempt should ever be made to ● Do not try to light any appliance.
convert the water heater from natural ● Do not touch any electrical switch.
gas to LP gas. To avoid possible
equipment damage, personal injury or ● Do not use any phone in your building.
fire, do not connect the water heater to a ● Leave the house immediately and make
fuel type not in accordance with the unit sure your family and pets leave also.
data plate. LP for LP units. Natural gas
● Leave the doors open for ventilation
for natural gas units. These units are not
and contact the gas supplier, a qualified
certified for any other fuel type.
service agency or the fire department.
● LP appliances should not be installed
● Stay away from the house (or building)
below grade (for example, in a basement)
until the service call has been made, the
if such installation is prohibited by
leak is corrected and a qualified agency
federal, state and/or local laws, rules,
has determined the area to be safe.
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. 5
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.

SAFETY PRECAUTIONS
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 ● Do not attempt to repair or replace any part
or operating the water heater. of your water heater unless it is specifically
recommended in this manual. All other
● Use this appliance only for its intended
servicing should be referred to a qualified
purpose as described in this Use and Care
technician.
Manual.
● Be sure your appliance is properly installed
in accordance with local codes and the
provided installation instructions.

Read and follow this Safety Information

carefully.
SAVE THESE INSTRUCTIONS

6
 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.
Combustion Air Inlet Location
Openings The water heater should not be located FVIR certified gas water heaters can be
in an area where leakage from the tank installed on a residential garage floor
Max.
2”
or connections will result in damage without the use of an 18-inch stand in
to the area adjacent to the heater or to accordance with the National Fuel Gas
lower floors of the structure. Code, NFPA 54, ANSI Z223.1 2006, unless
otherwise directed by State and Local
When such areas cannot be avoided it is
code requirements. The water heater must
recommended that a suitable catch pan,
be located so it is not subject to physical
adequately drained, must be installed
Flammable damage, for example, by moving vehicles,
Diameter of under the water heater.
Vapor water heater area flooding, etc
Sensor plus 2” min.The pan must not restrict air flow to the
● The water heater should be installed
combustion air inlet openings (perforation
The auxiliary catch pan as close as practical to the gas vent or
openings) located around the lower
installation MUST conform perimeter of the water heater. chimney.
to local codes. ● Hot water lines should be insulated to
Catch pan kits are available from the store
conserve water and energy.
Top View Alcove where the water heater was purchased, or
Rear any water heater distributor. ● The water heater and water lines should
be protected from exposure to freezing
Make certain the floor underneath the water
temperatures.
heater is strong enough to sufficiently
support the weight of the water heater once ● Do not install this water heater in
it is filled with water. bathrooms, bedrooms, any occupied
rooms normally kept closed, or in
A gas-fired water heater or any other
unprotected outdoor areas.
appliance should not be installed .
in a space where liquids which give off ● Minimum clearance from combustible
Sides flammable vapors are to be used or stored. construction:
Front Open Such liquids include gasoline, LP gas
(butane or propane), paint or adhesives and Location Front Sides Rear Top
Top View Closet their thinners, solvents or removers. Alcove 3”. 0”. 0”. 12”.
Rear (7.62 cm) (0 cm) (0 cm) (30.5 cm)
When installed in a closet, DO NOT
block or obstruct any of the combustion 3”. 1”. 0”. 12”.
Closet
air inlet openings located around the (7.62 cm) (2.5 cm) (0 cm) (30.5 cm)
perimeter of the water heater. A
minimum of 1” is required between these ● If the clearances stated on the
combustion air inlet openings and any Instruction/Warning Label, located on
obstruction. the front of the heater differ, install the
water heater according to the clearances
DO NOT obstruct or block the
Sides stated on the label.
Front Enclosed Flammable Vapor Sensor.
! WARNING: Combustible
● If the water heater is to be installed
Because of natural air movement in a room
construction refers to directly on carpeting , the water heater
or other enclosed space, flammable vapors
adjacent walls and ceilings shall be installed on a metal or wood
can be carried some distance from where
and should not be confused panel extending beyond the full width
liquids which give off flammable vapors
with combustible or and depth of the water heater by at least
flammable products and are to be used or stored. The open flame of
3 in. (7.6 cm) in all directions or, if
materials. Combustible and/ the water heater’s pilot or main burner can
the water heater is to be installed in an
or flammable products and ignite these vapors and create a shut down
alcove or closet, the entire floor must be
materials should never be condition of the water heater which
covered by a wood or metal panel.
stored in the vicinity of this will not allow the water heater to ignite
or any gas appliance. until examined by a Qualified Service
Notice: DO NOT allow the Technician.
flammable vapor sensor to
become submerged in water.
Make sure the catch pan is
properly drained.
7
Installing the water heater.
Inspect Shipment
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.

Combustion and Ventilation Air

Proper operation of the water heater (but not less than 100 square inches), if
requires air for combustion and each opening communicates with other
ventilation. Provisions for combustion unconfined areas inside the building.
and ventilation air must comply with Buildings of unusually tight construction
referenced codes and standards. shall have the combustion and ventilation
When installed in a closet, DO NOT block air supplied from outdoors, or a freely
or obstruct any of the combustion air inlet ventilated attic or crawl space.
openings located around the perimeter If air is supplied from outdoors, directly or
of the water heater. A minimum of 1” is through vertical ducts, there must be two
required between these combustion air inlet openings located as specified above and
openings and any obstruction. each must have a minimum net free area
NOTICE: If the water heater is installed of not less than one square inch per 4000
in an unconfined space within a building Btuh of the total input rating of all the
of conventional frame, masonry or metal appliances in the enclosure.
construction, infiltration air is normally
If horizontal ducts are used to
adequate for proper combustion and
ventilation. If the water heater is installed in communicate with the outdoors, each
a confined space, provisions for combustion opening must have a minimum net free
and ventilation air must be made. area of not less than one square inch per
2000 Btuh of the total input rating of all
A confined space is one having a volume the appliances in the enclosure. If ducts
of less than 50 cubic feet per 1000 Btuh are used, the minimum dimensions of
of the aggregate input of all appliances rectangular air ducts shall not be less than
within that space. 3”.
The air must be supplied through two NOTICE: If the duct openings which supply
permanent openings of equal area. One . combustion and ventilation air are to be
is to be located within 12” above the floor covered with a protective screen or grill,
and the other is to be located within 12” the net free area (openings in the material)
from the ceiling. of the covering material must be used
in determining the size of the openings.
The minimum net free area of each opening Protective screening for the openings MUST
must not be less than one square inch NOT be smaller than 1/4”mesh to prevent
per 1,000 Btuh of the total input rating clogging by lint or other debris.
of all the appliances in the enclosure

NOTICE: The water heater Corrosive Atmospheres

should not be installed near The air in beauty shops, dry cleaning will shorten the life of any gas burning
an air supply containing
halogenated hydrocarbons. establishments, photo processing appliance.
labs, and storage areas for liquid and
Propellants from common spray cans
powdered bleaches or swimming pool
or gas leaks from A/C and refrigeration
chemicals often contain such halogenated
equipment are highly corrosive after
hydrocarbons.
passing through a flame.
An air supply containing halogenated
The water heater warranty is voided when
hydrocarbons may be safe to breathe, .
failure of the heater is due to operation in
but when it passes through a gas flame
a corrosive atmosphere.
corrosive elements are released that .
8
 Thermal Expansion
Determine if a check valve exists in the inlet pressure increase in the water heater and
water line. Check with your local water system piping. This rapid pressure increase can
utility company. It may have been installed quickly reach the safety setting of the relief
in the cold water line as a separate back flow valve, causing it to operate during each heating
preventer, or it may be part of a pressure cycle. Thermal expansion, and the resulting
reducing valve, water meter or water softener. rapid, and repeated expansion and contraction
A check valve located in the cold water inlet of components in the water heater and piping
line can cause what is referred to as a “closed system can cause premature failure of the relief
water system”. A cold water inlet line with no valve, and possibly the heater itself. Replacing
check valve or back flow prevention device is the relief valve will not correct the problem!
referred to as an “open” water system. The suggested method of controlling thermal
As water is heated, it expands in volume and expansion is to install an expansion tank in
creates an increase in the pressure within the the cold water line between the water heater
water system. This action is referred to as and the check valve (see illustration below).
“thermal expansion”. In an “open” water The expansion tank is designed with an air
system, expanding water which exceeds the cushion built in that compresses as the system
capacity of the water heater flows back into pressure increases, thereby relieving the over
the city main where the pressure is easily pressure condition and eliminating the repeated
dissipated. operation of the relief valve. Other methods
A “closed water system”, however, prevents of controlling thermal expansion are also
the expanding water from flowing back into the available. Contact your installing contractor,
main supply line, and the result of “thermal water supplier or plumbing inspector for
expansion” can create a rapid and dangerous additional information regarding this subject.

IMPORTANT: Do not Water Supply Connections

apply heat to the HOT or Refer to the illustration below for suggested for servicing if necessary. The HOT and COLD
COLD water connections. If typical installation. The installation of unions water connections are clearly marked and are
sweat connections are used, or flexible copper connectors is recommended 3/4” NPT on all models. Install a shut-off valve
sweat tubing to adapter on the hot and cold water connections so that in the cold water line near the water heater.
before fitting adapter to the the water heater may be easily disconnected
cold water connections on
heater. Any heat applied
to the cold water supply Typical Installation
fittings will permanently Vent connector to Pitch up 1/4”
chimney Union
damage the dip tube. per foot
Heat trap.
6” minimum Draft hood

Hot water outlet to Anode

Vacuum Relief Valve
(Not Supplied) fixtures Union
Water Heater Jacket
Temperature and
If required, install per local codes
and valve manufacturer’s
pressure relief valve
instructions.
Heat trap .
Manual gas shut-off
6” minimum
To gas supply Shut-off
valve To cold water
NOTICE: The National
supply
Fuel Gas Code (NFGC)
Ground joint union
mandates a manual Shut-off valve
Sediment trap Thermal expansion
gas shut-off valve: See tank (if required)
(NFGC) for complete Cap Relief valve discharge
instructions. Local codes line to suitable open
Drain
or plumbing authority valve
drain.
requirements may vary Thermostatic gas valve
Combustion Air
from the instructions or Inlet Openings
Jacket door
diagrams provided and
take precedent over these Auxiliary catch pan 6” Air gap
instructions.
Flammable Vapor Sensor Drain Pan Pipe
to suitable drain. 9
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 The discharge line must be no smaller
must not exceed 150 psi (1,034 kPa), the than the outlet of the valve and must
maximum working pressure of the water pitch downward from the valve to allow
heater as marked on the rating plate. complete drainage (by gravity) of the
relief valve and discharge line.
The Btuh rating of the relief valve must
equal or exceed the Btuh input of the The end of the discharge line should not
water heater as marked on its rating plate. be threaded or concealed and should be
protected from freezing. No valve of
Position the outlet of the relief valve
any type, restriction, or reducer coupling
above a suitable open drain to eliminate
should be installed in the discharge line.
potential water damage. Piping used
should be of a type approved for hot water
distribution.

WARNING: The tank To Fill the Water Heater

must be full of water before Make certain that the drain valve is A steady flow of water from all hot water
the water heater is turned closed, then open the shut-off valve in the faucet(s) indicates a full water heater.
on. The water heater cold water supply line.
warranty does not cover Do not allow the flammable vapor sensor
damage or failure resulting Open each hot water faucet slowly to to become submerged in water.
from operation with an allow the air to vent from the water .
empty or partially empty heater and piping.
tank.

Condensation
Condensation can form on the tank If, however, the condensation continues,
when it is first filled with water. examine the piping and fittings for
Condensation might also occur with a possible leaks.
heavy water draw and very cold inlet
Additional information on this subject
water temperatures.
may be found at www.rheem.com, under
Drops of water falling on the burner can “Library”, scroll down to the Technical
produce a sizzling or pinging sound. Service Bulletins 1400 Series Section and
choose Bulletin #1402.
This condition is not unusual, and will
disappear after the water becomes heated.

Flue Damper
Follow these instructions for proper installation and operation
This water heater has a factory installed The draft hood must be installed on the
flue damper device for increased energy damper housing using the holes provided
efficiency. Removal of the flue damper for alignment and fastening. The damper
connections will render the heater must be in open position as shown in the
inoperable. Do not operate the water figure when water heater main burner
heater without the damper housing in is operating. See trouble shooting
place on the damper assembly. A draft instructions if a condition other than this
hood is shipped with this water heater. occurs.

10
 Gas Supply
WARNING: Do not The branch gas supply line to the water Where a sediment trap is not incorporated
attempt to convert this heater should be clean, properly sized as part of the appliance, a sediment trap
water heater for use with a steel pipe or other approved gas piping shall be installed downstream of the
different type of gas other material. equipment shutoff valve as close to the
than the type shown on the inlet of the appliance as practical at the
rating plate. Such A union or ANSI design certified semi- time of the appliance installation.
conversion could result in rigid or flexible gas appliance connector
hazardous operating should be installed in the gas line close to Do not use excessive force over [31.5
conditions. the water heater. The National Fuel Gas ft. lbs. (42.7 Nm)] in tightening the pipe
Code (NFGC) mandates a manual gas joint at the gas control inlet, particularly if
shut-off valve: See (NFGC) for complete teflon pipe compound is used, as the valve
instructions. body may be damaged.
If flexible connectors are used, the The inlet gas pressure to the water
maximum length shall not exceed . heater must not exceed 14.0 in. w.c. (3.5
36" (91.4 cm) and must meet the kPa) w.c. for natural gas, and LP gas.
requirements in ANSI Z21.24/CSA 6.10- For purposes of input adjustment, the
Connectors for Gas Appliances. minimum inlet gas pressure (with main
burner on) is shown on the water heater
Compound used on the threaded joints of
rating plate. If high or low gas pressures
the gas piping must be of the type resistant
to the action of LP gas. Use compound are present, contact your gas supplier for
sparingly on male threads only. correction.

Leak Testing
WARNING: Never use The water heater and its gas connections leaks at all connections and fittings.
an open flame to test for must be leak tested at normal operating Bubbles indicate a gas leak that must
gas leaks, as property pressures before it is placed in operation. be corrected.
damage, personal injury, or
death could result.  urn on the manual gas shut-off
T The factory connections to the gas control
valve near the water heater. should also be leak tested after the water
heater is placed in operation.
Use a soapy water solution to test for

Pressure Testing the Gas Supply System

The water heater and its shut off valve the gas supply piping system by closing
must be disconnected from the gas supply it's individual manual shut off valve
piping system during any pressure testing during any pressure testing of the gas
of that system at test pressures in excess supply piping system at test pressures
of 1/2 psi (3.5 kPa). equal to or less than 1/2 psi (3.5 kPa)
The water heater must be isolated from

High Altitude
This water heater is suitable and certified ! WARNING: Installations above the
for use at high altitude. Refer to the rated altitude as specified on the altitude
altitude information on the water heater label are not authorized and may result in
rating label for maximum allowable improper and inefficient operation of the
installation altitude. appliance, producing carbon monoxide gas
in excess of acceptable limits, which could
result in serious injury or death.

11
 Installing the water heater.

Wiring Diagram

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.

CONNECTION DIAGRAM SCHEMATIC

R C
< 24 VAC >
DAMPER 3 x 2 CONNECTOR VALVE

BL
5
END SWITCHES R
4
Y
M 3
W P1
2
BK
1 1
M
G 2
TS1 3
BK
1 4
2 5
END SWITCHES
NUETRAL
GROUND

3
24 VAC

BK
TS2
P3 TS1
W
1 1
FV 2 2
W 3 TS2

WV 4460E CONTROL
1
TRANSFORMER
SPARK FV
P2
1
120
2

1 E1
TSTAT
NUETRAL
GROUND

2
120 VAC

DISPLAY 1
3
PILOT
ELECTRODE
LCD DISPLAY OPTIONAL GND ASSY

P4
BK = BLACK 1
BL = BLUE
G = GREEN 2 TSTAT
R = RED 3
G W = WHITE
N L Y = YELLOW
24 VAC

120 VAC

L N
AX5044

CAUTION! Label all wires prior to disconnection when servicing controls. Wiring errors can cause
improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING!

12
The water heater must be installed with the factory supplied draft hood in place.

DANGER: Failure to Venting

install the draft hood and Vent connectors must be attached to the connectors must be at least 6” from
properly vent the water
heater to the outdoors as draft hood outlet to connect the water adjacent unprotected combustible surface.
outlined in the Venting heater to the gas vent or chimney. The Vent joints must be securely fastened
section of this manual will vent connectors must be the same size by sheet metal screws or other approved
result in unsafe operation of (diameter) as the draft hood or larger, method.
the water heater causing never smaller.
Test for spillage at the draft hood relief
bodily injury, explosion,
fire or death. To avoid the For proper venting in certain installations opening after 5 minutes of main burner
risk of fire, explosion, or a larger vent connector size may be operation. Use a flame of a match or
asphyxiation from carbon needed. Consult the Vent Tables in candle or smoke. The flame or smoke
monoxide, NEVER operate Appendix G of the latest version of the should be pulled into the draft hood’s
the water heater unless it is National Fuel Gas Code (ANSI Z223.1/ relief opening(s). If the flame or smoke
properly vented and has NFPA 54.) is not pulled into the draft hood's relief
adequate air supply for opening, shut off the water heater and
proper operation as Horizontal vent connectors must be
make proper adjustments/repairs to the
outlined in the Venting pitched upward to the chimney at least
venting system.
section of this manual. 1/4" per linear ft. Single wall vent

Insulation Blankets
Insulation blankets, available to the CAUTION: If local codes require the
WARNING: If local codes
general public, for external use on gas application of an external insulation
require external application
of insulation blanket kits water heaters are not necessary. The blanket to this water heater, pay careful
the manufacturer’s purpose of an insulation blanket is to attention to the following so as not to
instructions included with reduce the standby heat loss encountered restrict the proper function and
the kit must be carefully with storage tank heaters. This water operation of the water heater:
followed. heater meets or exceeds the National ● Do not cover the operating or warning
Appliance Energy Conservation Act labels attached to the water heater or
standards with respect to insulation and attempt to relocate them on the exterior
standby loss requirements making an of insulation blanket.
insulation blanket unnecessary.
Do not apply insulation to the top of the
The manufacturer’s warranty does not water heater. This will interfere with the
cover any damage or defect caused by safe operation of the draft hood.
installation, attachment or use of .
any type of energy saving or other  Do not cover the burner access door,
unapproved devices (other than those jacket door, gas control (thermost at)/gas
authorized by the manufacturer) into, onto valve or pressure and temperature relief
or in conjunction with the water heater. valve.
The use of unauthorized energy saving
 Do not apply insulation to the bottom
devices may shorten the life of the water
of the water heater or the area where
heater and may endanger life and property.
the combustion air inlet openings are
The manufacturer disclaims any located. This area must be unobstructed
responsibility for such loss or injury so as not to restrict combustion air flow
resulting from the use of such to the burner.
unauthorized devices.
 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.

13
Installing the water heater.
Hot and Cold Pipe Insulation Installation

Typical vertical piping arrangement Typical horizontal piping arrangement

For increased energy efficiency, some to the illustrations above, that best meets
water heaters have been supplied with. your requirements.
two 24” sections of pipe insulation..
Please install the insulation, according

Heat Trap
For increased energy efficiency, some These heat traps may require a minimum
water heaters have been supplied with of one (1) 90°, 3/4” NPT elbow and may
factory installed 3/4” NPT heat traps in require an additional 90°, 3/4” NPT elbow
the hot outlet line and cold water inlet line. 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.

During Installation of this water heater...........

DO DON’T
❑ DO check inlet gas pressure to ensure ❑ DON’T block or restrict Combustion
that it is within the range specified on the Air Inlet Openings located around the lower
rating plate. portion of the water heater jacket.
❑ DO provide adequate air for combustion ❑ DON’T remove the Burner Access
and ventilation as discussed in the Use and Door unless absolutely necessary. This
Care Manual and the National Fuel Gas should only be done by a qualified service
Code. technician. A new burner access door gasket
❑ DO maintain proper clearances to must be installed on any burner access door
combustibles as specified on the rating plate. that has been removed.
❑ DO ensure that the venting system ❑ DON’T install this water heater where
complies with the guidelines found in the standing water may occur. The base of the
Use and Care Manual and National Fuel Gas water heater is meant to be mounted on a dry
Code. surface.
❑ DO contact a qualified service technician
if the pilot or main burner will not stay ❑ DON’T operate the water heater if the
lit. The burner chamber is designed to be sight glass or burner access door grommet is
sealed utilizing a gasket and tamper resistant damaged or broken.
screws.
❑ DON'T manually open or close the
❑ DO ensure that the flue damper is not damper.
obstructed and is free of debris. Burner Access Sight Glass
Door Grommet

14
Flammable
Vapor Sensor
Installation Checklist
A. Water Heater Location
❑ Close to area of vent. ❑ Provisions made to protect area from water
damage.
❑ Indoors and protected from freezing
temperatures. ❑ Sufficient room to service heater.
❑ Proper clearance from combustible surfaces ❑ Combustible materials, such as clothing,
observed and water heater not installed on cleaning materials, rags, etc. clear of the
carpeted floor. base of the heater.
❑ Sufficient fresh air supply for proper
operation of water heater. ❑ C
 learances from combustion air-inlet
openings observed (see page 7).
❑ Air supply free of corrosive elements and
flammable vapors. ❑ Flammable vapor sensor is not blocked.
B. Water Supply
❑ Water heater completely filled with water.
❑ Air purged from water heater and piping.

❑ Water connections tight and free of leaks.

C. Gas Supply
❑ Gas line equipped with shut off valve, ❑ Soap and water solution used to check all
union and sediment trap. connections and fittings for possible gas leak.

❑ Approved pipe joint compound used. ❑ Gas Company inspected installation (if
required).

D. Relief Valve
❑ Temperature and Pressure Relief Valve
properly installed and discharge line run to
open drain.
❑ Discharge line protected from freezing.
E. Venting
❑ Flue baffle properly hung in water heater’s ❑ Vent connector(s) securely fastened together
flue tube. with screws.

❑ Draft hood properly installed on damper ❑ Single wall vent connector(s) at least 6"
housing. from combustible material.

❑ Vent connector(s) pitched upward to chimney ❑ Flue damper properly installed and operating
or vent (¼" per linear foot minimum) . normally.

F. Wiring
❑ Correct power supply (24 VAC) transformer.
❑ Electrical connection tight.
❑ Heater properly grounded and proper polarity
observed. 15
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.
Hot water Combination Potable and Space Heating Application
supply to
house Tee fitting must be installed as shown. This DANGER: If this water heater is installed
ensures that any air in the water lines will be in an application intended to supply domestic
purged through the domestic water faucets and hot water needs and hot water for space
Hot water showers. heating purposes, do not connect the heater
supply to to an existing heating unit or components of
From HOT DANGER: When this system requires
heating outlet on a heating system that have previously been
unit water for space heating at elevated
water heater used with a non drinking water system. Toxic
temperatures (above 125°F [52°C.]), a mixing
chemicals such as those used for boiler
Tee fitting for vertical hot or tempering valve must be installed in the
water supply lines. treatment may be present and will
hot water supply line to the house in order to
contaminate the drinking water supply
Hot water From HOT reduce the scald hazard potential.
outlet on causing possible health risks. Never
supply to DANGER: Any piping or components used introduce toxic chemicals, such as those used
house water heater
in the installation of this water heater in a for boiler treatment, into this system.
combination potable and space heating
application must be suitable for use with Notice: 50' - 0" maximum distance
drinking water. from water heater to fan coil
(developed length) is required for
Hot water supply Massachusetts State.
to heating unit
Tee fitting for horizontal hot
water supply lines.

Typical Piping Diagram for Combination Potable/Space Heating Installation

Pressure Gauge
Nominal 3/4" size mixing or tempering valve Minimum of 2'-0" developed 3/4" Check Valve with 1/8" Hole
(refer to warning above). Follow mixing or length of 3/4" pipe. 3/4" Tempered 3/4" Shut-Off Valve (Typ.)
tempering valve manufacturer’s instructions for domestic hot water 3/4" cold water supply
installation of the valve. Air vent supply to house.
Spring loaded check valve in heating unit
hot water supply line and cold water return
line (not supplied with water heater)
3/4" Shut-Off Valve (Typ.)
NOTE: This check valve is incorporated
in some heating units. Refer to the
installation instructions supplied with Heat Trap
6” Min.
specific heating unit to determine if it is
required. 2 Gallon Thermal
3/4" Shut- Expansion Tank (if
Off Valve required-not supplied
Isolation valve in hot water supply line (Typ.) with water heater) Hot water .
to heating unit (not supplied with water to space heater
heater)
Hot water coil
See diagrams above for proper.
40°
All bronze pump.
pipe application for vertical.
1
or horizontal supply lines. Check valve
internal in pump.
Temperature and Pressure Relief °
130 Air bleed valve.
Valve, tie to location approved by
° to
local code 120 Water Sample Tap.

Gas line to water heater

3/4" HWS & HWR
to Heating Coil.
Drain valve To HVAC Unit.
Temperature and pressure relief
valve discharge line (not supplied with T FAN
ON
water heater) OFF
HEAT
Gas Fired Isolation valve in COOL
Water Heater cold water return line
from heating unit (not
supplied with water
heater) Air Handler
Gas Direct Vent discharge
Water Heater drain pan installed in must comply with Local
accordance with the Local and State and State Code
Code

Water Heater to be in accordance with Combustion Air Inlet Vacuum Relief Valve Electronically controlled pump timer.
the Local and State Energy Code Openings (Not Supplied) Activates every 6 hours for 60 seconds.
Wire to bronze pump.

All water heater piping shall be

insulated in accordance with Local
and State Energy Code. If required, install per local codes
and valve manufacturer’s
6” Air Gap
16
instructions.
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.

17
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.

Safety Precautions
Do turn off manual gas shut off valve if water heater  o Not store or use gasoline or other flammable
D
has been subjected to over heating, fire, flood, vapors and liquids, such as adhesives or paint thinner,
physical damage or if the gas supply fails . in vicinity of this or any other appliance. .
to shut off. If such flammables must be used, open doors .
and windows for ventilation, and all gas burning
 o Not turn on water heater unless it is completely
D
appliances in the vicinity should be shut off including
filled with water.
their pilot burners, to avoid vapors lighting.
 o Not turn on water heater if cold water supply shut
D NOTICE: Flammable vapors can be drawn by air
off valve is closed. currents from surrounding areas to the water heater.
 o Not allow combustible materials such as
D If there is any difficulty in understanding or following
newspaper, rags or mops to accumulate near . the Operating Instructions or the Care and Cleaning
water heater. section, it is recommended that a qualified person or
serviceman perform the work.

Operating Procedure
This water heater is equipped with an position. Set the thermostat dial to the
ignition device which automatically desired setting.
lights the pilot. Do not try to light the
After the pilot and main burner ignite,
pilot by hand. On initial start-up, it is
replace the outer door. If no pilot and
recommended that the outer door be
main burner flames are established, the
removed (leave inner door in place for
combination gas control will go through
safety) to determine if the pilot and main
three trials for ignition before going into
burner are operating properly.
a “lock-out” mode. A warning light will
Once filled with water, plug in the alert the user of this “lock-out” mode
electrical supply cord and slide the “ON/ condition. If this happens, refer to the
OFF” switch located on the front of the “Gas valve LED codes.”
combination gas control to the “ON”

Water Temperature Setting

!! DANGER: Hotter water The temperature of the water in the water Water temperatures above 125°F .
increases the Potential heater can be regulated by setting the can cause severe burns or death from
for Hot Water SCALDS. temperature dial on the front of the gas scalding. Be sure to read and follow the
Households with small control (thermostat). warnings outlined in this manual and on
children, disabled, or elderly the label located on the water heater near
persons may require a Safety and energy conservation are factors
the gas control thermostat.
120°F or lower gas control to be considered when selecting the water
(thermostat) setting to temperature setting of the water heater’s Mixing valves are available for reducing
prevent contact with HOT gas control (thermostat). The lower the point of use water temperature by mixing
water. temperature setting, the greater the savings hot and cold water in branch water
in energy and operating costs. lines. Contact a licensed plumber or
the local plumbing authority for further
To comply with safety regulations, the gas information.
control (thermostat) was set at its lowest
setting before the water heater was shipped The chart on the next page may be used
from the factory. The recommended as a guide in determining the proper water
temperature for your home.
18 starting point temperature is 120°F.
Water Temperature Setting…
Maximum water temperatures occur just after the burner The gas control (thermostat) is constructed with a built in
has shut off. To determine the water temperature, turn on safety shutoff device designed to shut off the gas supply to
a hot water faucet and place a thermometer in the water the burner if the main burner is extinguished for any reason.
stream.
The gas control (thermostat) is also equipped with a gas
A condition known as “stacking” or “layering” can occur shutoff device that will shut off the gas supply to the burner
when a series of short and frequent hot water draws are if the water heater exceeds normal operating temperatures.
taken. Refer to the “Before You Call For Service” section of this
manual, or contact your dealer.
The hottest temperature water will be at the top of the tank,
closest to the outlet pipe delivering hot water to the home. ! WARNING: Should overheating occur or the gas
supply fail to shut off, turn off the manual gas control
Stacking can cause this top layer of water to be hotter than valve to the appliance
the water toward the bottom of the tank near the gas control
(thermostat). Therefore, always remember to test the water NOTICE: Replace any part of the gas control system
temperature with your hand before use and remember that which has been under water.
hotter water increases the risk of scald injury.
Also, always supervise young children or others who are If the water heater has been subjected to fire, flood or physi-
incapacitated. 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 qualified service technician.

Time/Temperature Relationship in Scalds

Water Temperature Time To Produce a Serious Burn
120°F More than 5 minutes
125°F 11/2 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 160°F 150°F About 11/2 seconds
140°F 155°F About 1 second
Table courtesy of Shriners Burn Institute
130°F

120°F

113°F

105°F

98°F 90° F

Temperatures are approximate

19
 Care and cleaning of the water heater.
Draining the Water Heater
! CAUTION: Shut off gas to the water Before turning off the cold water supply to
heater at the manual gas shutoff valve the water heater, open a hot water faucet
before draining water. allowing sufficient cold water into the
! DANGER: Before manually operating tank to prevent the risk of a scald injury
the temperature and pressure relief valve, while draining the water heater. Once the
make certain no one will be exposed to the water in the tank is no longer hot, turn off
hot water released by the valve. The water the cold water supply to the water heater.
drained from the tank may be hot enough Open a hot water faucet or lift the handle
to present a scald hazard and should be on the relief valve to admit air to the tank.
directed to a suitable drain to prevent injury
or damage. Attach a garden hose to the drain .
valve on the water heater and direct .
the stream of water to a drain. Open .
the valve.
! DANGER: Before Routine Preventative Maintenance
manually operating the
relief valve, make certain Properly maintained, your water heater operate erratically. Because accumulated
no one will be exposed to will provide years of dependable trouble- solids can prevent the gas control
the danger of the hot water free service. (thermostat) sensors from accurately
released by the valve. The reading the water temperature, the water
water may be hot enough to It is recommended that a periodic
at the fixture can be hotter than the gas
create a scald hazard. The inspection of the gas control (thermostat),
burner, relief valve, internal flue-way and control (thermostat) dial setting. It is
water should be released suggested that a few quarts of water be
into a suitable drain to venting system should be made by service
prevent injury or property personnel qualified in gas appliance repair. drained from the water heater’s tank every
damage. month to clean the tank of these deposits.
It is suggested that a routine preventative
maintenance program be established and Rapid closing of faucets or solenoid valves
followed by the user. in automatic water using appliances can
cause a banging noise heard in a water
Periodically, lift and release the lever pipe. Strategically located risers in the
DANGER: Hotter water
! handle on the temperature pressure relief water pipe system or water hammer
increases the potential for valve, located near the top of the water arresting devices can be used to minimize
Hot Water Scalds. heater, to make certain the valve operates the problem.
freely. Allow several gallons to flush
through the discharge line to an open drain. The anode rod should be removed from the
water heater’s tank annually for inspection
NOTICE: If the temperature and and replaced when more than 6” of core
pressure relief valve on the hot water wire is exposed at either end of the rod.
heater discharges periodically, this
DANGER: Failure to
!
may be due to thermal expansion in a Make sure the cold water supply is turned
perform the recommended off before removing anode rod.
closed water system. Contact the water
Routine Preventative
supplier or your plumbing contractor on
Maintenance can harm the This water heater incorporates a
how to correct this. DO NOT plug the
proper operation of this combustion shut off device that shuts
relief valve outlet.
water heater, which can cause the operation of the water heater down if
carbon monoxide dangers, A water heater’s tank can act as a settling undesirable combustion conditions occur,
excessive hot water basin for solids suspended in the water. such as the presence of flammable vapors
temperatures and other It is therefore not uncommon for hard or blockage of the combustion air inlet
potentially hazardous water deposits to accumulate in the bottom openings. Please contact a Qualified
conditions. of the tank. If allowed to accumulate, Service Technician if this occurs.
these solids can cover the gas control
(thermostat) sensors, causing the sensors to
! DANGER: Combustible Housekeeping
materials, such as clothing, Make sure the flammable vapor sensor is When installed in a closet, DO NOT
cleaning materials, or not blocked or obstructed. block or obstruct any of the combustion air
flammable liquids, etc., must inlet openings located around the perimeter
To ensure sufficient ventilation and
not be placed against or next of the water heater. A minimum of 1” is
combustion air supply, proper clearances
to the water heater. must be maintained. required between these combustion air inlet
20 openings and any obstruction.
Care and cleaning of the water heater.
Venting System Inspection
The water heater’s internal flue must be If after inspection of the vent system .
inspected periodically to be certain it is you found soot or deterioration; .
clean by removing the flue damper, draft call the local gas utility to correct the
hood, and flue baffle. problem and clean the flue, or replace
the flue baffle, and venting system before
When reinstalling the flue baffle make
resuming operation of the water heater.
certain it is hung securely by its collar at
the top of the flue way. Test for spillage at the draft hood relief
opening after 5 minutes of burner
Reinstall the flue damper and the draft
operation. Use a flame of a match or
hood.
candle or smoke. The flame or smoke
Inspect the gas venting system and/or the should be pulled into the draft hood’s
chimney. relief opening(s). If the flame or smoke
is not pulled into the draft hood's relief
Make certain the vent connector from openings, shut off the water heater and
the draft hood to the vent system and/or make proper adjustments/repairs to the
the chimney is properly positioned and venting system.
securely attached.

Burner Inspection
Visually inspect the pilot burner and main ! CAUTION: For your safety, cleaning
burners periodically. of the burner must be performed only by
qualified service personnel. The burner
Through the sight glass, inspect the pilot chamber is a sealed area. If the burner
burner flame with the main burner off and access door is removed, the burner access
inspect the main burner while firing.. door gasket must be replaced.
Proper burner and pilot burner For cleaning, remove the burner from the
pattern. water heater. A vacuum cleaner can be
If any unusual burner operation is noted,
the water heater should be shut off used on the burner and floor shield inside
until qualified service assistance can be the water heater. The burner can also be
cleaned by scrubbing with mild detergent.
obtained.

Vacation and Extended Shut-Down

NOTICE: Refer to the If the water heater is to remain idle for an After a long shut-down period, the
Hydrogen Gas Caution in the extended period of time, the power and water heater’s operation and controls
Operating Instructions. water to the appliance should be turned off should be checked by qualified service
to conserve energy and prevent a build-up personnel. Make certain the water heater
of dangerous hydrogen gas. is completely filled again before placing it .
in operation.
The water heater and piping should be
drained if they might be subjected to
freezing temperatures.

Anode Rod
NOTICE: Do not remove This water heater is equipped with an Water sometimes contains a high sulfate
the anode rod from the water anode rod designed to prolong the life and/or mineral content and together with
heater’s tank, except for of the glass lined tank. The anode rod is cathodic protection process can produce
inspection and/or replacement, slowly consumed, thereby eliminating or a hydrogen sulfide, or rotten egg odor in
as operation with the anode
minimizing corrosion of the glass lined the heated water. Chlorination of the water
rod removed will greatly
shorten the life of the glass
tank. supply should minimize the problem.
lined tank and will exclude
warranty coverage.

21
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.

Problem Possible Causes What To Do

Condensation This usually happens when a • This is normal. After the water in the tank warms
new heater is filled for the first up, the condensation will disappear. If, however, the
time condition persists, examine the piping and fittings for
possible leaks. Refer to the "Condensation" informa-
tion in the "Installing the Water Heater" section of this
manual.
Moisture from the products of • This is normal and will disappear in time. Excessive
combustion condensing on the condensation can cause main burner outage. Refer to
tank surface. the "Condensation" information in the "Installing the
Water Heater" section of this manual.
An undersized water heater will • Use a water heater size that meets the requirements of
cause condenstion. your needs.
Yellow flame Scale on top of the burner. • Contact a qualified service technician to purge air from
or soot the gas line.
Flue or combustion air inlet • Remove obstruction or debris from flue or combustion
openings are restricted. air inlet openings on water heater jacket.
Not enough combustion or ven- • Proper operation of the water heater requires air for
tilation air supplied to the water combustion and ventilation. See the "Combustion and
heater location. Ventilation Air" information in the "Installing the Water
Heater" section of this manual.
Unable to light Air in gas line. • Contact a qualified service technician to purge air from
main burner the gas line.
Pilot burner orifice clogged. • Pilot should be cleaned or replaced by a qualified ser-
vice technician.
Pilot burner tube pinched or • The pilot burner should be cleaned, repaired, or re-
clogged. placed by a qualified service technician.
Damper unable to open. • Contact a qualified 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 • Contact a qualified service technician to confirm wire
secured. connection(s).
Combustion shut-off device • Combustion shut-off device should be inspected by a
tripped. qualified service technician.
Gas control (thermostat) prob- • Contact a qualified service technician.
lem. • Refer to "Gas Valve Error Codes" in the "Gas Valve
LED Codes" section of this manual.
Main burner does not Combustion shut-off device • Combustion shut-off device should be inspected by a
stay lit tripped. qualified technician.
Gas control (thermostat) shut- • Contact a qualified service technician.
off device tripped.
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.
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.
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 Pressure build up caused • This is an unacceptable condition and must be cor-
producing popping by thermal expansion to a rected. Contact the water heater supplier or plumb-
noise or draining closed system. ing contractor on how to correct this. Do not plug
the relief valve outlet.
Not enough or no hot Water usage may have • Wait for the water heater to recover after an abnor-
water exceeded the capacity of mal demand.
the water heater.
Low gas pressure • Check gas supply pressure and manifold pressure.
The gas control (thermo- • Refer to the "Water Temperature Setting" informa-
stat) may be set too low. tion in the "Installing the Water Heater" section of
this manual.
Leaking or open hot wa- • Make sure all faucets are closed.
ter faucets.
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 • Turn "ON".
off.
Gas control (thermo- • Contact a qualified service technician.
stat) shut-off device has
tripped.
Combustion shut-off • Contact a qualified service technician.
system tripped.
Water is too hot Gas control (thermostat) • See the "Water Temperature Setting" in the "Install-
is set too high. ing the Water Heater" section of this manual.
Gas control (thermostat) • Contact a qualified service technician to replace the
is defective. gas control (thermostat).
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.

23
Gas Valve LED Codes
GAS VALVE LED STATUS/PROBLEM PROBABLE CAUSE SOLUTION

Normal Operating
Short flash once ev- Water Temperature setpoint has been
Condition/ No Fault None required
ery four seconds achieved
Condition
“Heartbeat”, alter- Calling For Heat/No Water temperature is below setpoint
None required
nates bright/dim Fault Conditions and burner is on
• Pilot tube restricted or damaged
One Flash, three Control still operating/ • Carbon build-up on pilot's electrode • Replace Pilot assembly
second pause Low flame signal • Pilot igniter wire damaged • Correct gas supply
• Gas supply problems
• Inspect Flue Damper wiring and
• Flue Damper improperly sealed
connections
• Flue Damper switch stuck closed
Two Flashes, three Sytem in Lockout/Flue • Replace Flue Damper Assembly
• Faulty Flue Damper motor
second pause. Damper Switch closed • Contact a qualified service techni-
• Obstruction or debris in damper
cian. See "IF YOU NEED SER-
opening
VICE" on page 28
• Flue Damper improperly installed
• Flue Damper switch stuck open • Inspect wiring and connections
• Faulty Flue Damper switch • Replace Flue Damper Assembly
Three Flashes, three System in Lockout/Flue
• Incorrect wiring and/or connections • Contact a qualified service techni-
second pause Damper Switch open
• Faulty Flue Damper motor cian. See "IF YOU NEED SER-
• Obstruction or debris in damper VICE" on page 28
opening
• Reset Gas Control (Thermostat) and
• Thermal well fault in Gas Control
System in Lockout/ check for proper cycling of control.
Four Flashes, three (Thermostat)
Thermal Cutoff Device • Replace Gas Control (Thermostat)
second pause • Gas Control (Thermostat) faulty
tripped • Ensure tank is completely filled
• Tank not filled with water
with water
Five Flashes, three System in Lockout/No Pilot and/or Main Burner valve has
Replace the Gas Control (Thermostat)
second pause Flame Sense failed to open
• Pilot flame unstable
• Pilot tube restricted or damaged
Six-One Flashes, System in Lockout/ • Replace Pilot assembly
• Carbon build-up on pilot's electrode
three second pause Unit failed to light • Correct gas supply
• Pilot igniter wire damged
• Gas supply problem(s)
• Inspect Flue Damper wiring and
connections
System in Lockout/ • Improper Flue Damper installation
Six-Two Flashes, • Replace Flue Damper Assembly
Flue Damper Switch • Faulty Flue Damper switch
three second pause • Contact a qualified service techni-
opened • Incorrect wiring and/or connections
cian. See "IF YOU NEED SER-
VICE" on page 28
• Combusstion air supply restricted
or blocked • Ensure combustion air supply is not
Six-Three Flashes, System in Lockout/ • Pilot tube restricted or damaged blocked or restricted
three second pause Flame Lost • Carbon build-up on pilot's electrode • Replace Pilot assembly
• Pilot igniter wire damaged • Correct gas supply
• Gas supply problem(s)

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.

24
Gas Valve LED Codes cont.....
GAS VALVE LED STATUS/PROBLEM PROBABLE CAUSE SOLUTION

System in Lockout/
Six-Four Flashes, Gas Control (Thermostat's) valve
Flame sense out of Replace Gas Control (Thermostat)
three second pause stuck open
sequence
• Ensure that no flammable vapor(s)
• Gasoline or other flammable are present
System in Lockout/ vapor(s) were detected • Reset the Gas Control (Thermostat)
Seven Flashes, three
Presence of Flamma- • Faulty Flammable Vapor Sensor using "ON/OFF" switch located on
second pause
ble Vapors detected • Faulty Gas Control (Thermo- the front of the control
stat) • Replace Flammable Vapor Sensor
• Replace Gas Control (Thermostat)
• Flammable vapor sensor values
out of range • Inspect the Flammable Vapor Sen-
System in Lockout/
Eight-One Flash, • Improper Flammable Va- sor wiring and connection(s)
Flammable Vapor
three second pause por Sensor wiring and/or • Replace Flammable Vapor Sensor
Sensor fault detected
connection(s) • Replace Gas Control (Thermostat)
• Faulty Flammable Vapor Sensor
System in Lockout/ • Inspect the wiring connection(s) to
Eight-Two Flashes, • Thermal well fault in Gas Con-
Energy cutoff device the thermal well
three second pause trol (Thermostat)
fault detected • Replace the thermal well
• Thermal well fault in Gas Con-
System in Lockout/
Eight-Three Flashes, trol (Thermostat) • Replace thermal well
Fault in the electronics
three second pause • Faulty Gas Control (Thermo- • Replace Gas Control (Thermostat)
circuit detected
stat)
• Gas Control (Thermostat) needs • Cycle the power to the Gas Control
System in Lockout/
Eight-Four Flashes, to be reset (Thermostat)
Fault with the Gas
three second pause • Gas Control (Thermostat) has • Replace the Gas Control (Thermo-
Control (Thermostat)
been damaged stat)

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.

25
 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:
Part description (as noted below) and
The model and serial number of the number of parts desired.
water heater from the rating plate.
CAUTION: For your safety, DO
Specify type of gas (Natural or LP) NOT attempt repair of gas piping,
as marked on the rating plate. Gas Control (Thermostat), burners,
vent connectors or other safety devices.
Refer repairs to qualified service
personnel.
Draft Hood
Use only original equipment
Flue DamperHousing
*Heat Trap replacement parts.
Flue Damper *Nipple Burner Assembly Kit
*Heat Trap
Flue Baffle and Hanger
*Nipple
Dip Tube
Anode Rod
Dip Tube Gasket
Transformer
Temperature and Pressure
Relief Valve

The kit provides extra speed clips

and tamper resistant screws.

*Not supplied with all models.

Drain Valve

Gas Control (Thermostat's)

Gas Control (Thermostat)
Thermal Well

Burner
Burner Supply Tube

Pilot Supply Tube

Sight Glass

Burner Access Door Gasket

Jacket Door

Burner Orifice

Ignitor
Burner Access Door Grommet
Burner Access Door
26
Notes:

27
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.
Important Instructions for the Commonwealth of Massachusetts
The Commonwealth of Massachusetts requires compliance with regula- mounted to the exterior of the building at a minimum height of eight (8) feet
tion 5.08: Modifications to NFPA-54, Chapter 10 : 248 CMR 4.00 above grade directly in line with the exhaust vent terminal for the horizon-
and 5.00 for installation of through – the – wall vented gas appliances as tally vented gas fueled heating appliance or equipment. The sign shall read,
follows: in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
(1) Revise NFPA-54 section 10.5.4.2 by adding a second exception as fol- 4. INSPECTION. The state or local gas inspector of the side wall horizon-
lows: tally vented gas fueled equipment shall not approve the installation unless,
Existing chimneys shall be permitted to have their use continued when a gas upon inspection, the inspector observes carbon monoxide detectors and
conversion burner is installed, and shall be equipped with a manually reset signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1
device that will automatically shut off the gas to the burner in the event of a through 4.
sustained back-draft. (b) EXEMPTIONS: The following equipment is exempt from 248 CMR
(2) Revise 10.8.3 by adding the following additional requirements: 5.08(2)(a)1 through 4:
(a) For all side wall horizontally vented gas fueled equipment installed in 1. The equipment listed in Chapter 10 entitled "Equipment Not Required To
every dwelling, building or structure used in whole or in part for residential Be Vented" in the most current edition of NFPA 54 as adopted by the Board;
purposes, including those owned or operated by the Commonwealth and and
where the side wall exhaust vent termination is less than seven (7) feet above 2. Product Approved side wall horizontally vented gas fueled equipment in-
finished grade in the area of the venting, including but not limited to decks stalled in a room or structure separate from the dwelling, building or structure
and porches, the following requirements shall be satisfied: used in whole or in part for residential purposes.
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time (c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING
of installation of the side wall horizontal vented gas fueled equipment, the SYSTEM PROVIDED. When the manufacturer of Product Approved side
installing plumber or gasfitter shall observe that a hard wired carbon monox- wall horizontally vented gas equipment provides a venting system design or
ide detector with an alarm and battery back-up is installed on the floor level venting system components with the equipment, the instructions provided
where the gas equipment is to be installed. In addition, the installing plumber by the manufacturer for installation of the equipment and the venting system
or gasfitter shall observe that a battery operated or hard wired carbon mon- shall include:
oxide detector with an alarm is installed on each additional level of the dwell- 1. Detailed instructions for the installation of the venting system design or
ing, building or structure served by the side wall horizontal vented gas fueled the venting system components; and
equipment. It shall be the responsibility of the property owner to secure the 2. A complete parts list for the venting system design or venting system.
services of qualified licensed professionals for the installation of hard wired (d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING
carbon monoxide detectors SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved
a. In the event that the side wall horizontally vented gas fueled equipment is side wall horizontally vented gas fueled equipment does not provide the parts
installed in a crawl space or an attic, the hard wired carbon monoxide detec- for venting the flue gases, but identifies "special venting systems", the fol-
tor with alarm and battery back-up may be installed on the next adjacent floor lowing requirements shall be satisfied by the manufacturer:
level. 1. The referenced "special venting system" instructions shall be included with
b. In the event that the requirements of this subdivision can not be met at the the appliance or equipment installation instructions; and
time of completion of installation, the owner shall have a period of thirty (30) 2. The "special venting systems" shall be Product Approved by the Board,
days to comply with the above requirements; provided, however, that during and the instructions for that system shall include a parts list and detailed
said thirty (30) day period, a battery operated carbon monoxide detector with installation instructions.
an alarm shall be installed. (e) A copy of all installation instructions for all Product Approved side wall
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon horizontally vented gas fueled equipment, all venting instructions, all parts
monoxide detector as required in accordance with the above provisions shall lists for venting instructions, and/or all venting design instructions shall
comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified. remain with the appliance or equipment at the completion of the installation.
3. SIGNAGE. A metal or plastic identification plate shall be permanently
28