!
WARNING: This water heater is not
suitable for use in manufactured (mobile) homes!
®
Gas Residential - FVIR Certified
Water Heaters
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 very important 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 assistance.
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.”
Use & Care Manual
With Installation Instructions for the Installer
Residential 40 and 50 Gallon
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.
WARNING: If the information in these instructions is not followed exactly,
!
a fire or explosion may result causing property damage, personal injury or death.
!
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.
I
S
G
E
N
El manual en Español está
D
disponible en www.rheem.com.
● 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.
Manufactured under trademark license by:
Rheem Manufacturing Company
2600 Gunter Park Drive East, Montgomery, AL 36109
Printed in USA
C
E
D
R
E
I
T
F
I
®
AP15765 (05/10)
!
Safety Information
Safety Precautions. . . . . . . 3–6
LP Gas Models . . . . . . . . . . . . 5
IMPORTANT!
Fill out and return the Consumer Product Registration Card that is
in the back of this manual.
Installation Instructions
Location . . . . . . . . . . . . . . . . . . . 7
Water Supply Connections . . 9
Gas Supply . . . . . . . . . . . . . . . . 11
Venting . . . . . . . . . . . . . . . . . .12-15
Wiring Diagram . . . . . . . . . . . . . .17
Pipe Insulation . . . . . . . . . . . . . 18
Heat Traps . . . . . . . . . . . . . . . . 19
Installation Checklist . . . . . . .20
Potable/Space Heating . . . . . 21
Operating Instructions
Lighting Instructions . . . . . . 22
Water Temperature . . . . . 23, 24
Care and Cleaning
Draining . . . . . . . . . . . . . . . . . . 26
Maintenance . . . . . . . . . . . . . 26
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.
READ THIS MANUAL
Inside you will find many helpful hints on how to use and maintain
your water heater properly. Just 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 Before You Call
For Service section. If you review our chart of Troubleshooting Tips
first, you may not need to call for service at all.
IF YOU NEED SERVICE
If you do need service, you can relax knowing help is only a phone call
away. For service call 800-431-1549.
Vent System Inspection . . . 27
Burner Inspection . . . . . . . . . 27
Extended Shut-Down . . . . . . .28
Troubleshooting Tips
Before You Call
For Service . . . . . . . . . . . . 29-31
Customer Service
Parts List . . . . . . . . . . . . . . . . 32
If You Need Service . . . . . . . . .34
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
2
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.
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 BLOWER ASSEMBLY AND PROPERLY VENT
THE WATER HEATER…
Failure to install the blower assembly 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.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
WARNING!
Gasoline, as well as other flammable materials and liquids (which include but are not limited
to 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 the 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.
W A R N I N G
!
FLAMMABLE S
!
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.
Flammable Vapors
FIRE AND EXPLOSION HAZARD
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 thermostat. 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
!
D A N G E R
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 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 in
HOT
BURN
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
Water temperature over 125°
can
cause severe burns
instantly or
death from scalds.
F (52°C)
Children, disabled and elderly are
at highest risk of being scalded.
thermometer. (See page 24 and 25 for more details.)
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.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
DANGER: Hotter
water increases the
potential for Hot
Water SCALDS.
available, see manual.
Valve Set
Point
LOW
●
●
●
HOT
A
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
4
B
C
VERY HOT
Estimated
Temperature
90°F -----------------------98°F -----------------------105°F -----------------------113°F -----------------------120°F More than 5 minutes
130°F About 30 seconds
140°F Less than 5 seconds
150° About 1-1/2 seconds
160°F About 1/2 second
Burns on Adult Skin
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.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
● 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.
DANGER: If a gas leak is present or
suspected:
● Do not attempt to find the cause yourself.
● Do not try to light any appliance.
● Do not touch any electrical switch.
● Do not 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.
● 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
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.
READ AND FOLLOW THIS SAFETY INFORMATION
CAREFULLY.
SAVE THESE INSTRUCTIONS
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety 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
Openings
Max.
2.75”
Flammable
Vapor
Sensor
The auxiliary catch pan
installation MUST conform
to local codes.
Diameter of
water heater
plus 2” min.
Notice: DO NOT allow
the catch pan to obstuct
the flammable vapor
sensor.
Notice: DO NOT allow
the flammable vapor
sensor to become
submerged in water.
Make sure the catch pan
is properly drained.
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
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 water heater must be centered in
the catch pan.
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.
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.
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, 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.
● Long 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 the water heater in
●
bathrooms, bedrooms, any occupied
rooms normally kept closed, or in
unprotected outdoor areas.
● Minimum clearance from combustible
construction:
Front Sides Rear Top
3”
(7.6 cm)
1”
(2.5 cm)
0”
(0 cm)
(30.5 cm)
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 installed in an
alcove or closet, the entire floor must
be covered by a wood or metal panel.
A minimum of 24” clearance from the
front and top should be available for
adequate inspection and servicing.
● The water heater may be installed on
combustible floors, but not directly on
carpeting. If the water heater must be
installed on carpeting, place a metal or
wood panel beneath the water heater,
extending beyond its full width and
depth at least 3” in all directions.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
12”
7
Installing the water heater.
Inspect Shipment
Inspect the water heater for possible damage. Check the markings on the rating plate
of the water heater to be certain the type of gas supplied corresponds to the water
heater requirements.
Combustion and Ventilation Air
Ventilation (ambient) air temperature
must be 100°F or less. 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.
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.
DO NOT obstruct or block the
Flammable Vapor Sensor.
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
1000 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.
NOTICE: The water
heater should not be
installed near an air
supply containing
halogenated
hydrocarbons.
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
8
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.
Thermal Expansion
If required, install per local codes
Determine if a check valve exists in the
inlet water line. Check with your local
water utility. 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
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
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.
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.
Vacuum Relief Valve
(Not Supplied)
and valve manufacturer’s
instructions.
Water Supply Connections
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
Vent connector
Union
Heat trap
6” minimum
Hot water outlet to
fixtures
Water Heater Jacket
Temperature and pressure
relief valve
Manual gas shut-off
To gas supply
Ground joint union
Sediment trap
Cap
Thermostatic gas valve
Jacket door
Flammable Vapor Sensor
Auxiliary catch pan
Drain Pan Pipe to
suitable drain.
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.
1/4” per foot maximum slope up or
down for horizontal venting.
Anode
Blower assembly
Union
Shut-off
valve
Thermal expansion
tank (if required)
Drain
valve
6” Air gap
Heat trap
6” minimum
To cold water
supply
Shut-off valve
Relief valve discharge line
to suitable open drain.
Combustion Air
Inlet Openings
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, 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, 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.
WARNING: The tank
must be full of water
before heater is turned
on. The water heater
warranty does not cover
damage or failure
resulting from operation
with an empty or partially
empty tank.
To Fill the Water Heater
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 the hot water
faucet(s) indicates a full water heater.
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.
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
10
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.
Gas Supply
The branch gas supply line to the water
heater should be clean 1/2” black steel pipe
or other approved gas piping material.
A ground joint 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”.
If lever type gas shut-offs are used,
they shall be T-Handle type.
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 the appliance installation. The
sediment trap shall be either a tee fitting
with a capped nipple in the bottom outlet
or other device recognized as an effective
sediment trap.
Do not use excessive force (over 31.5 ft
lbs.) in tightening the pipe joint at the gas
control (thermostat) 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 10.5” w.c. for natural
gas, or 14” w.c. for 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.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
WARNING: Never use
an open flame to test for
gas leaks, as property
damage, personal injury,
or death could result.
WARNING: Failure to
install a water heater
suitable for the altitude at
the location it is intended
to serve, can result in
improper operation of the
appliance resulting in
property damage and/or,
producing carbon
monoxide gas, which
could result in personal
injury, or death.
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 (thermostat) should also be leak
tested after the water heater is placed in
operation.
Pressure Testing the Gas Supply System
The water heater and its manual gas
shut-off valve must be disconnected from
the gas supply piping system during any
pressure testing of that system at
pressures in excess of 3/8 psi
(10.5” w.c.) for natural gas, or 1/2 psi (14”
w.c.) for LP gas.
The water heater must be isolated from
the gas piping system by closing the
manual gas shut-off valve during any
pressure testing of the gas supply piping
at pressures equal to or less than
3/8 psi (10.5” w.c.) for natural gas, or
1/2 psi (14” w.c.) for LP gas.
High Altitude
Input rating of this water heater is
based on sea level operation. At higher
elevations the actual input rate may be
lower than the value listed on the rating
label. This water heater can be installed
at elevation up to 7,700 feet without any
change or modification.
For installation between 2,000 feet
(609 m) and 7,700 feet (2347 m), refer
to the Venting Information tables on page
13 and 14 for maximum vent length.
Contact the local gas supplier for more
information.
11
Installing the water heater.
Flue
Baffle
Rubber
Coupling
Blower
Assembly
The water heater must be installed with the factory supplied blower assembly in place.
DANGER: Failure to
install the blower
assembly 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.
The vent pipe must
overlap a minimum of ½”
on each connection. It
is important that the vent
pipe engages fully into
any pipe fitting and be
kept in that position until
the adhesive has fully
cured. DO NOT drill
or punch holes in the
plastic pipe or fittings.
NOTICE: This unit is
equipped with a Flammable
Vapor Sensor. Do not apply
power until enough time
has passed to allow the
vapors from the primer and
cement to dissipate.
Venting
The water heater must be vented to
the outdoors as described in these
instructions. DO NOT connect this water
heater to an existing vent or chimney - it
must be vented separately from all other
appliances.
NOTICE: This unit can be vented using only
the following recommended pipe material.
Use only 2- or 3-inch diameter pipe.
PVC (Schedule 40, ASTM D1785)
CPVC (Schedule 40, ASTM F441)
ABS (Schedule 40, ASTM D2661)
ABS (Schedule 40 DWV, Cellular Core,
ASTM F891)
The fittings, other than the TERMINATION,
should be equivalent to the following:
PVC (Schedule 40 DWV, ASTM D2665)
CPVC (Schedule 40 DWV, ASTM F438)
ABS (Schedule 40 DWV, ASTM D2661)
The unit may be vented horizontally
through a wall or vertically through the
roof.
Pipe runs must be adequately supported
along both vertical and horizontal runs.
Maximum unsupported span is
recommended to be no more than 6 feet.
It is imperative that the first hanger be
located on the horizontal run immediately
adjacent to the first 90-degree elbow
from the vertical rise.
Support method used should isolate
the vent pipe from floor joists or other
structural members to help prevent the
transmission of noise and vibration.
Do not support, pin or otherwise secure
the venting system in a way that
restricts the normal thermal expansion
and contraction of the chosen venting
material.
If the water heater is being installed as a
replacement for an existing power vented
water heater, a thorough inspection of
the existing venting system must be
performed prior to any installation work.
Verify that the correct materials as
detailed above have been used, and that
the minimum or maximum vent length
and terminal locations as detailed in this
manual have been met.
Carefully inspect the entire venting
system for any signs of cracks or
fractures, particularly at the joints
between elbows or other fittings and the
straight runs of vent pipe.
Check the system for signs of sagging or
other stresses in the joints as a result
of misalignment of any components in the
system.
If any of these conditions are found, they
must be corrected in accordance with the
venting instructions in this manual before
completing the installation and putting
the water heater into service.
NOTICE: The vent piping must be
connected to the blower assembly
using the rubber coupling and
supplied clamps. The vent pipe
connections at the blower assembly
must be leak tested with soap and
water solution upon initial startup.
Repair any leaks before allowing
the water heater to operate.
Additional installation information for
The Commonwealth of Massachusetts is
located on the back page of this maunal.
Blower Assembly Installation
(If not factory installed)
Connect blower assembly with the electrical connector. Attach
Blower Assembly to top pan using the six (6) screws provided
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
12
(See diagram to the left). Install rubber coupling (supplied in
the box with water heater) on blower housing and secure it.
NOTICE: The Blower Assembly is Btuh input specific and
is not certified for use on any other Btuh input model.
Maximum and Minimum Vent Lengths for Residential
Minimum vent length for 2” vent pipe is one (1) foot of vertical pipe, one (1)
90°elbow, and three (3) feet of horizontal pipe.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Maximum
Models
43VP40SE2,
43VP40SPE2,
43VP50SE2,
43VP50SPE2
43VP40E2,
43VP40PE2,
43VP50E2,
43VP50PE2
NOTICE: The mixing of 2" and 3"
vent pipe is not recommended.
If 3" pipe is used, a 2" to 3" bell
coupling is recommended at the
rubber coupling.
This water heater is supplied with
a two-inch Schedule 40 PVC 45°
vent terminal. If you decide to vent
with 3" pipe, a Schedule 40 PVC
45° vent terminal must be used.
For your convenience screens for
both 2" and 3" vent terminals have
been included.
Altitude for
2” & 3” Vents
5,999’
7,700’
Venting information for 2” Vents*
Number of
90° elbows
with Vent
One (1) None
One (1) One (1)
Two (2) None
Two (2) One (1)
Three (3)
* For the 2” vent, one 90° elbow is approximately equal to 6 feet of pipe. One
45° elbow is approximately equal to 3 feet of pipe.
Minimum vent length for 3” vent pipe is one (1) foot of vertical pipe, one (1)
90°elbow, and four (4) feet of horizontal pipe.
Number
of
45°
Elbows
None
Maximum Vent
Pipe Length in
Feet (ft)
0’ - 2,000’
44’ 24’
41’ 21’
38’ 18’
35’ 15’
32’ 12’
Maximum Vent Pipe
Length in Feet (ft)
2,001’ and above.
See Maximum
Altitude chart on left
Venting information for 3” Vents**
Number of
90° elbows
with Vent
One (1) None 95’ 75’
One (1) One (1) 92.5’ 72.5’
Two (2) None 90’ 70’
Two (2) One (1) 87.5’ 67.5’
Three (3) None 85’ 65’
Three (3) One (1) 82.5’ 62.5’
Four (4) None 80’ 60’
Four (4) One (1) 77.5’ 57.5’
Five (5) None 75’ 55’
** For the 3” vent, one 90° elbow is approximately equal to 5 feet of pipe.
One 45° elbow is approximately equal to 2.5 feet of pipe.
Number of
45° Elbows
0-Maximum Altitude: See chart on upper left.
Maximum Vent Pipe
Length in Feet (ft)
0’ - 2,000’
Maximum Vent Pipe
Length in Feet (ft)
2,001’ and above.
See Maximum
Altitude chart on left
Minimum Vent Restrictor
Vent Restrictor
Vent Terminal
Vent Pipe
Mesh
Install the vent restrictor at the minimum vent lengths
listed above.
DO NOT use the vent restrictor for any other vent
lengths.
13
brick or masonary surface is recomended.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Installing the water heater.
NOTICE: All pipe, fittings, solvent cement, primers and procedures must conform to American
National Standards Institute and American Society for Testing and Materials (ANSI/ASTM) standards.
Horizontal Vent Terminal Location
The location of the vent terminal depends on the following
minimum clearances and considerations (see illustration):
Vent Terminal must be at least twelve (12) inches above
grade level and above normal
snow levels.
Vent Terminal must be at least four (4) feet below, or four
(4) feet horizontally from any door, window, soffit, under
eave vent or gravity air inlet to the building or other
appliances, or from gas or electric meters. Do not locate
vent above walkways, doors, windows, air inlets, gas or
electric meters or other equipment.
Vent Terminal must be at least three (3) feet above any
forced air inlet located within ten (10) feet. Any fresh or
make-up air inlet such as for a dryer or furnace area is
considered to be a forced air inlet.
Vent Terminal must be at least eighteen (18) inches from an
inside corner formed by two exterior walls.
Inside
corner
Electric
meter
18"
window or vent
Soffit vents
4'
18"
4'
4'
4'
4'
3' above
if within 10'
12" (Above grade/snow level)
Fresh
air
intake
Caulk
Rising moisture will
collect under eaves
If soffit vent is too
close, block off and
install new vent at
another location
Inside
corner
Caulk
6'
(1.83 m)
caulk zone
4'
(1.22 m)
(1.83 m)
6'
6' (1.83 m)
caulk
zone or to edge of
window etc., starting
within 6'
2 ft. sq. (60 x 60 m) sheet metal plate on
(1.83 m)
RTV silicone caulk
Caulk
WARNING: Moisture in the flue gas will
condense as it leaves the vent terminal. In cold
weather this condensate can freeze on the exterior
wall, under the eaves and on surrounding objects.
Some discoloration to the exterior of the building is
to be expected. However, improper location or
installation can result in severe damage to the
structure or exterior finish of the building.
Additional Considerations
Do Not install vent terminal under any patio or deck.
To help prevent moisture from freezing on walls and under
eaves, do not locate vent terminal on the side of a build ing
with prevailing winter winds.
Do Not terminate vent pipe directly on brick or masonry
surfaces. Use a rust-resistant sheet metal backing plate
(2 x 2 feet) behind vent. (See illustration.)
Do Not locate vent terminal too close to shrubbery, as flue
gasses may damage them.
Caulk all cracks, seams and joints within six (6) feet of vent
terminal.
All painted surfaces should be primed to lessen the chance
of physical damage. Painted surfaces will require
maintenance.
Insulate vent pipe exposed to cold conditions (attics, crawl
spaces, etc.) with inflammable material to help prevent
moisture from accumulating in vent pipe.
Do Not extend exposed vent pipe outside of building.
14
NOTICE: All pipe, fittings, solvent cement, primers and procedures must conform to American
National Standards Institute and American Society for Testing and Materials (ANSI/ASTM) standards.
From
Water Heater
Min. 12" Above Roof
Min. 12" Above
Anticipated Snow
Level.
Max. 24" Above Roof
(Without Additional
Support)
Vent Pipe
Pipe Coupling
2' x 2' Sheet
Metal Shieldon
Brick or
Masonry Walls
*
Terminal with
1
¼2" Mesh
Protective
Screen Inside
Outside of
Building Wall
Insert 1/2" Mesh Protective
Screen Inside Terminal Elbow
Short Piece of Vent
Pipe
Vent Pipe
Through
Roof
Elbows
Vent
Horizontal Vent Installation
Once the vent terminal location has been determined, make a
hole through the exterior wall to accommodate the vent pipe.
Vent pipe must exit exterior wall horizontally only.
Insert a small length of vent pipe through the wall and connect
the coupling as shown to the left.
Place the 1/2" mesh metal screen inside the terminal fitting
and connect it as shown to the vent pipe on the exterior of the
building.
Complete the rest of the vent pipe installation to the water
heater's vent connector fitting on the blower outlet.
If necessary support horizontal run as previously mentioned.
Vertical Vent Termination Location
The location of the vent terminal depends on the following
minimum clearances and considerations (see illustration):
Minimum twelve (12) inches above roof.
Minimum twelve (12) inches above anticipated snow level.
Maximum twenty-four (24) inches above roof level without
additional support for vent.
Four (4) feet from any gable, dormer or other roof
structure with building interior access (i.e., vent, window,
etc.).
Ten (10) feet from any forced air inlet to the building. Any
fresh or make-up air inlet such as a dryer or furnace area
is considered to be a forced air inlet.
Vertical Vent Installation
Once the vent terminal location has been
determined, make a hole through the roof
and interior ceiling to accommodate the
vent pipe.
Complete the vent pipe installation to the
water heater's vent connector fitting on
the blower outlet.
Support vertical or horizontal runs as
previously mentioned.
Install adequate flashing where the vent
pipe passes through the roof.
Determine the vent terminal height and
cut vent pipe accordingly. Refer to the
above section for proper vent terminal
height.
Connect vent elbow onto vertical pipe
through roof.
Connect short piece of vent pipe
(approximately 3" long) to elbow, then
insert 1/2" mesh metal screen into
terminal elbow and join it to the short
piece of vent pipe.
15
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Installing the water heater.
Draining the Condensate
In certain conditions, installations
in unconditioned space or having
long horizontal or vertical runs may
accumulate condensate.
In order to prevent condensate from
draining back into the water heater
installing a condensate trap and drain is
recommended in a horizontal vent section
as close as practical to the water heater
vent connection.
NOTICE: All pipe, fittings, solvent cement, primers and procedures must conform to American
National Standards Institute and American Society for Testing and Materials (ANSI/ASTM) standards.
Cementing Joints
Condensate is known to be acidic; refer to
local, state (provincial) or federal codes
for proper handling methods.
WARNING: DANGER
OF FIRE OR BODILY
INJURY - Solvent cements
and primers are highly
flammable. Provide
adequate ventilation and
do not assemble near
heat source or open
flame. Do not smoke.
Avoid skin or eye contact.
Observe all cautions and
warnings on material
containers.
CAUTION:
For proper installation:
DO NOT use solvent
cement that has become
curdled, lumpy or
thickened.
DO NOT thin solvent
cement. Observe shelf
precautions printed on
the containers.
For applications below
32°F use only low
temperature type solvent
cement.
Appropriate solvent and
cleaner must be used for
the type of vent pipe used
(PVC, CPVC or ABS).
All joints in the vent piping must be
properly sealed and the following materials
are recommended:
PVC materials should use ASTM D2564
grade cement.
CPVC materials should use ASTM F493
grade cement.
ABS materials should use ASTM D2235
grade cement.
Cleaner-Primer and Medium Body
Solvent Cement:
Cut pipe end square, remove jagged
edges and burrs. Chamfer end of pipe,
then clean fitting socket and pipe joint
area of all dirt, grease or moisture.
After checking pipe and socket for
proper fit, wipe socket and pipe with
cleaner-primer. Apply a liberal coat of
primer to inside surface of socket and
outside of pipe. Do not allow primer to
dry before applying cement.
Apply a thin coat of cement evenly in
the socket. Quickly apply a heavy coat
of cement to the pipe end and insert
pipe into fitting with a slight twisting
motion until it bottoms out.
NOTICE: Cement must be fluid; if not,
recoat.
Hold the pipe fitting for 30 seconds to
prevent the tapered socket from
pushing the pipe out of the fitting.
Wipe all excess cement from the joint
with a rag. Allow 15 minutes before
handling. Cure time will vary according
to fit, temperature and humidity.
NOTICE: Stir the solvent cement
frequently while using. Use a natural
bristle brush or the dauber supplied
with the can. The proper brush size is
one inch.
NOTICE: This unit is equipped with a
Flammable Vapor Sensor. Do not apply
power until enough time has passed to
allow the vapors from the primer and
cement to dissipate.
16
Wiring
If local codes permit, the water heater
may be connected to electric service with
the power cord provided (DO NOT use an
extension cord). A grounding receptacle is
required.
If local codes do not permit the use of
cord connections, a 120 V, 50/60 Hz
power supply, with suitable disconnecting
means, must be connected to the black
and white leads in the heater control
enclosure.
A knock-out hole is provided to permit use
of conduit or metal-clad cable connectors.
The maximum current draw is
approximately 5.0 amps.
The water heater must be electrically
grounded in accordance with local codes,
or, in the absence of local codes, in
accordance with latest edition of the
National Electric Code ANSI/NFPA No. 70.
Refer to pictorial below for water heater
internal wiring.
NOTE: It is not recommended that this
unit be installed on a GFCI circuit.
CONNECTION DIAGRAM
120 VAC
GROUND
120 NEUT
INDUCER
PRESSURE
SWITCH
TEMPERATURE
SWITCH
3 x 2 CONNECTOR
SCHEMATIC
H
P1
P3
P2
E1
GND
120 VAC
1
2
3
4
5
PS
TS1
1
2
3
1
2
1
TS2
FV
PILOT
ELECTRODE
ASSY
TS
BK = BLACK
<
BL = BLUE
G = GREEN
R = RED
W = WHITE
Y = YELLOW
BL
5
R
4
Y
3
W
2
BK
1
G
TS1
BK
BK
1
2
3
TS2
W
1
FV
2
W
WV 4460E CONTROL
N
>
MOT
SPARK
G
H
N
1
H
CAUTION! Label all wires prior to disconnection when servicing controls. Wiring errors can cause
improper and dangerous operation.
VERIFY PROPER OPERATION AFTER SERVICING!
120
N
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
17
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Installing the water heater.
Insulation Blankets
Insulation blankets, available to the
WARNING: If local
codes require external
application of insulation
blanket kits the
manufacturer’s
instructions included
with the kit must be
carefully followed.
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 blower
assembly.
Do not cover the burner access door,
jacket door, gas control (thermostat)/
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 and
Flammable Vapor Sensor are located.
This area must be unobstructed so as
not to restrict combustion air flow to
the burner or operation of the sensor.
NOTICE: If pipe
insulation is used,
ensure that the
thickness does not
exceed ½”. Insulation
thicker than ½” can
interfere with the
Blower Assembly
Dilution Air Holes.
Inspect the insulation blanket frequently
making certain it has not sagged
and it is not restricting the air flow
to the combustion air inlet openings
(perforation holes) or the Flammable
Vapor sensor located around the lower
perimeter of the water heater jacket.
This could result in an unsafe operating
condition.
Hot and Cold Pipe Insulation Installation
Dilution Air
Intake
Typical vertical piping arrangement
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.
18
Heat Traps
Dilution Air Inlet
Tall Models
Blower Assembly Dilution Air Holes
Location of Dilution Air Holes
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 on page 33.
During Installation of this water heater...........
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
allow enough time for joint cement
vapors to dissipate BEFORE applying power
to the water heater.
❑
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.
Sight Glass
DON’T
❑
DON’T
block or restrict Combustion
Air Inlet Openings or the Flammable Vapor
Sensor located around the lower portion of
the water heater jacket.
❑
DON’T
block or restrict the Blower
Assembly Dilution Air holes.
❑
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.
Burner Access
Door Grommet
Flammable
Vapor Sensor
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
19
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Installation Checklist
A. Water Heater Location
❑
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.
B. Water Supply
❑
Water heater completely filled with water.
❑
Air purged from water heater and piping.
❑
Water connections tight and free of leaks.
❑
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 of 1” from combustion air inlet
openings observed
❑ Flammable vapor sensor is not blocked.
C. Gas Supply
❑
Gas line equipped with shut-off valve, union
and sediment trap.
❑
Approved pipe joint compound used.
❑
Soap and water solution used to check all
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 top of heater’s
flue.
❑
Blower assembly properly installed.
❑
Vent connector(s) pitched upward
to chimney
(¼" per foot of length minimum) .
connections and fittings for possible
gas leak.
❑
Gas Company inspected installation (if
required).
❑
Single wall vent connector(s) at least
6” from combustible material.
❑
Vapors from PVC cement and primer have
dissipated prior to applying electrical power.
20
❑
Vent connector(s) securely fastened together
with screws.
Vacuum Relief Valve
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
supply to
house
Hot water
supply to
heating
unit
From HOT
outlet on
water heater
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
Tee fitting for horizontal hot
water supply lines
Typical Piping Diagram for Combination Potable/Space Heating Installation
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.
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
Isolation valve in hot water supply line
to heating unit (not supplied with water
See diagrams above for proper
pipe application for vertical
or horizontal supply lines.
Temperature and Pressure Relief
Valve, tie to location approved by
required.
heater)
local code
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.
Minimum of 2'-0" developed length of
3/4" pipe.
Air vent
3/4"
Shut-Off
Valve
(Typ.)
3/4" Tempered
domestic hot water
supply to house.
Heat Trap
6” Min.
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.
Pressure Gauge
3/4" Check Valve with 1/8" Hole
3/4" Shut-Off Valve (Typ.)
3/4" cold water supply
3/4" Shut-Off Valve (Typ.)
2 Gallon Thermal
Expansion Tank (if
required-not supplied
with water heater)
140°
120° to 130°
Hot water
to space
heater
Hot water coil
All bronze pump.
Check valve
internal in pump.
Air bleed valve.
Water Sample Tap.
Gas line to water heater
Temperature and pressure relief
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
All water piping shall be insulated
in accordance with Local and State
Energy Code.
valve discharge line
Gas Control (Thermostat)
Gas Fired
Water Heater
Isolation valve in cold
water return line from
heating unit (not
supplied with water
Gas Direct Vent discharge
must comply with Local
and State Code
Combustion Air Inlet
Openings
heater)
6” Air Gap
3/4" HWS & HWR
to Heating Coil.
Drain valve
(not supplied with
water heater)
If required, install per local codes
and valve manufacturer’s
(Not Supplied)
instructions.
To HVAC
Unit.
T
FAN
ON
OFF
HEAT
Air Handler
Electronically controlled pump timer.
Activates every 6 hours for 60 seconds.
Wire to bronze pump.
COOL
21
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety 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.
22
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
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.
Operating Procedure
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.
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.
This heater is equipped with an electronically
lit pilot to light the main burner. The pilot
is automatically lit each time there is a
demand for heating the water. 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, it is necessary to plug
the power cord in and make sure the “ON/
OFF” switch located on the blower assembly
is in the “ON” position and the gas control
switch is in the “ON” position. The blower will
Water Temperature Setting
The temperature of the water in the water
heater can be regulated by pressing the
button 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(s)). 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.
start and within seconds the pilot will light
followed by the main burner. After the main
burner ignites, replace the outer door.
If no main burner flame is established, the
gas control will go through three trials
for ignition before going into a lock-out.
A warning light will alert the user of this
lock-out condition. If this happens, refer to
“Troubleshooting Guide.”
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.
(See page 4 for more details.)
The chart below may be used as a guide in
determining the proper water temperature
for your home.
23
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
!
90° F
113°F
98°F
105°F
120°F
130°F
140°F
150°F
160°F
Temperatures are approximate
Operating the water heater cont.
Water Temperature Setting…
The following is additional information
which aid in determining a safe working
temperature to meet each household need.
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. If an adjustment to the
water temperature is preferred, then refer
to the Water Heater User Display – Operation Instructions for instruction on adjusting the local and remote user display
temperature setpoints.
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 hatter 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 shut-off
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 shut off 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
If the water heater has been subjected to
fire, flood or physical damage, turn off the
manual gas control (shut-off) valve and do
not operate the water heater again until
it has been checked by a qualified service
technician.
NOTICE: Replace any part of the gas
control system which has been under
water.
24
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 About 11/2 seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute
Sequence of Operation…
1. During initial start-up or a call
for heat, the control will verify the
vacuum switch is open.
2. Once the control verifies the
blower vacuum switch is open, the
control will energize the blower
motor for the pre-purge sequence
(approximately 5 seconds).
3. The control will verify the blower
vacuum switch has closed, ensuring
that the blower is functioning
properly and that the venting
system is not blocked.
4. The control will then proceed
through a sequence of selfdiagnostics before initiating a trial
for ignition.
5. During the trial for ignition, the
pilot will spark in an attempt to
light the pilot. Once the pilot flame
is established, the main gas valve
will open allowing gas to flow to the
main burner.
6. The main burner and pilot will
remain lit throughout the heat
cycle until the water temperature
setting is reached.
7. Once the water temperature
setting is reached, the control will
close the main gas valve and pilot
valve which will extinguish both the
main burner and pilot burner flames.
8. The blower motor will stay energized
for an additional 30 seconds after
the control verifies that the burner
flame is extinguished in order to
clear combustion gases from the
water heater.
9. After the post-purge sequence, the
control will de-energize the blower
motor and go into a stand-by mode
awaiting the next call for heat.
This water heater is equipped with
a flammable vapor sensor that
is monitored continuously by the
electronic control in all modes of
operation.
In the event that flammable vapors are
detected, the control will automatically
shut down the water heater and
prevent the water heater from being
started again.
The following is a list of materials that
will cause the Flammable Vapor Sensor
to shut down the water heater.
Vapors of Gasoline.
Vapors of certain flammable paints,
stains, and thinners.
Vapors of vent pipe Cement &
Solvents.
Bleach (direct contact with
flammable vapor sensor).
Some other flammable materials and
their vapors.
If the flammable vapor sensor shuts
down the water heater, then the
electronic control will display the
appropriate error code and you should
then promptly contact a qualified
service technician.
Refer to the “WARNING” on page 3 for
additional information.
25
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
Care and cleaning of the water heater.
!
!
Draining the Water Heater
!
CAUTION: Shut off gas to the
water heater at the gas control
(thermostat) gas cock or manual
shut-off 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.
In order to drain the water heater, turn off
the cold water supply. 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.
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: Hotter water
increases the potential for
Hot Water Scalds.
Dilution Air Inlet
Tall Models
Blower Assembly Dilution Air Holes
Location of Dilution Air Holes
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
26
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.
Inspect plastic vent pipe. Make certain
that all joints are secure and that vent
pipe supports are all in place. Check the
outdoor vent terminal to see that it is
free of obstructions, and that there is no
damage nearby caused by condensate.
Inspect dilution air inlet and combustion
air inlet openings. Make certain no
blockage exists. Clean any lint, dirt or oil
accumulation that may exist.
At least once a year, 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 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.
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.
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) 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.
Housekeeping
!
DANGER: Combustible
materials, such as
clothing, cleaning
materials, or flammable
liquids, etc., must not be
placed against or next to
the water heater.
Visually inspect hot surface ignitor.
To ensure sufficient ventilation and
combustion air supply, proper clearances
must be maintained.
Venting System Inspection
The water heater’s internal flue must be
inspected annually to be certain it is clean
by removing the blower assembly and flue
baffle.
When reinstalling the flue baffle make
certain it is hung securely by its hanger
at the top of the flue way.
Reinstall the blower assembly.
Inspect the gas venting system and the
chimney.
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. The sensor
does not require any maintenance or
cleaning. DO NOT expose to cleaning
agents.
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, flue baffle, and venting system before
resuming operation of the water heater.
Test for spillage at the blower assembly
relief opening after 5 minutes of burner
operation. Use a flame of a match or
candle or smoke.
Proper burner flame pattern.
Make certain the vent connector from the
blower assembly to the chimney is properly
positioned and securely attached.
Burner Inspection
Visually inspect the hot surface ignitor
and main burners annually.
Through the sight glass, inspect the hot
surface ignitor 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, as it involves the
disconnection of gas piping and
leak testing.. 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.
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
27
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Care and cleaning of the water heater.
Vacation and Extended Shut-Down
NOTICE: Refer to
the Hydrogen Gas
Caution in the Operating
Instructions.
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.
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 buildup of dangerous hydrogen gas.
The water heater and piping should be
drained if they might be subjected to
freezing temperatures.
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.
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.
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.
28
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 This is normal. After the water in the tank warms
a new water heater is up, the condensation will disappear. If, however, the
filled for the first time. condition persists, examine the piping and fittings
for possible leaks.
Moisture from the products This is normal and will disappear in time. Excessive
of combustion condensing condensation can cause main burner outage.
on the tank surface.
An undersized water Use a water heater size that meets the requirements
heater will cause of your needs.
condensation.
Yellow flame Scale on top of the burner. Contact a qualified service technician to remove scale.
or soot
openings are restricted. combustion air inlet openings on water heater jacket.
Flue or Combustion air inlet Remove obstruction or debris from flue or
Not enough combustion or Proper operation of the water heater requires air for
ventilation air supplied to combustion and ventilation. See the Combustion and
the water 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 the air
the main burner from the gas line.
Blocked Exhaust Contact a qualified service technician to evaluate vent
pipe for blockage.
Pressure Switch Make sure the pressure switch hose is not "kinked".
Wire Connection not fully Contact a qualified service technician to confirm wire
secured. connections.
Combustion Shut-off Device Combustion shut-off device should be inspected by a
tripped, qualified service technician.
Gas Control Problem Contact a qualified service technician.
Main burner does not Combustion Shutoff Device The combustion shutoff device should be inspected
stay lit Tripped. by a qualified service technician.
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.
29
Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
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 Clean tank.
in tank.
Relief valve Pressure build up This is an unacceptable condition and must be
producing popping caused by thermal corrected. Contact the water supplier or plumbing
noise or draining expansion to a contractor on how to correct this. Do not plug the
closed system. relief valve outlet.
Not enough or Water usage may have Wait for the water heater to recover after an
no hot water exceeded the capacity abnormal demand.
of the water heater.
Low gas pressure. Check gas supply pressure and manifold pressure.
The gas control (thermostat) See the “Water Temperature Setting” of The Water
may be set too low. Heater section of this manual.
Leaking or open hot Make sure all faucets are closed.
water faucets.
Check valve error codes. Refer to gas valve error code table on page 31.
“ON/OFF” switch turned off. Turn “ON”.
Blower unplugged. Plug in. Verify power supply (120VAC).
Combustion Shutoff System Contact a qualified service technician.
tripped
Water is too hot The gas control (thermostat) ● See the “Water Temperature Setting” of The Water
is set too high. Heater section of this manual.
Gas Control (Thermostat) ● Contact a qualified service technician to replace the
Defective. gas control (thermostat).
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, gas control (thermostat), burners,
vent connectors or other safety devices. Refer repairs to qualified service personnel.
30
Gas Valve LED Codes
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
LCD CODE
For Optional
Display
None
None
12
44
46
31
14
11
45
13
14
47
49
89
15
93
GAS VALVE LED STATUS/PROBLEM PROBABLE CAUSE SOLUTION
Short flash once
every four seconds
“Heartbeat”, alternates bright/dim
One Flash, three
second pause
Two Flash, three
second pause.
Three Flash, three
second pause
Four Flash, three
second pause
Five Flash, three
second pause
Six-One Flash,
three second
pause
Six-Two Flash,
three second
pause
Six-Three Flash,
three second
pause
Six-Four Flash,
three second
pause
Seven Flash, three
second pause
Eight-One Flash,
three second
pause
Eight-Two Flash,
three second
pause
Eight-Three Flash,
three second
pause
Eight-Four Flash,
three second
pause
IDLE (no call for heat,
no fault conditions)
Call For Heat (no fault
conditions)
Low flame signal (control continues to operate)
Pressure switch failed
closed
Pressure switch failed
open.
TCO limit lockout
Flame out of sequence
Failed trial for ignition
Recycle limit - PS/limit
opened
Recycle limit - flame
lost
Soft Lockout - flame
out of sequence sensed
Flammable vapor sensor lockout
FVS fault detected
Temperature sensor
fault detected
Electronics fault detected
Valve fault detected
Temperature setpoint achieved
and burner is off
Water temperature is below setpoint and burner is on
Pilot tube restriction, carbon
buildup on electrode, pilot wire
damage or gas supply
Pressure switch tube blockage or
faulty pressure switch.
Vent blockage or improper insallation, switch tube blockage, faulty
switch, blower improper operation
or temperature switch open
Thermal well fault, gas control
fault or tank is not filled with
water
Pilot or burner valve has failed
open
Insufficient gas supply, unstable
pilot, carbon buildup on electrode
or wire/pilot tube damage
Vent blockage or improper installation, switch tube blockage, faulty
switch, blower improper operation,
blower temperature switch open or
excessive wind at vent termination
Pilot tube restriction, low gas supply pressure, carbon buildup on
electrode, wire/pilot tube damage
or combustion air port blockage
Valve stuck in open position 1. Replace gas valve control
Gasoline or other flammable gas
was detected near the appliance
or the sensor has failed
Flammable vapor sensor resistance is out of range, wiring to FV
sensor is faulty or control is faulty
Thermal well fault
Thermal well fault or gas control
fault
Gas control valve needs to be reset or has been damaged
No solution required
No solution required
1. Gas supply pressure is low
2. Low voltage supply
3. Pilot replacement
1. Pressure switch wiring incorrect
2. Replace pressure switch
1. Pressure switch wiring incorrect
2. Replace pressure switch
3. Air intake or exhaust obstructed
4. Replace blower temperature switch
5. Replace blower
1. Reset valve and check for proper
valve cycling
2. Make sure tank is full of water
1. Replace gas valve control
1. Check gas supply
2. Replace pilot
1. Pressure switch wiring incorrect
2. Replace pressure switch
3. Air intake or exhaust obstructed
4. Replace blower temperature switch
5. Replace blower
6. Check for vent termination compli-
ance as stated in this manual
1. Gas supply pressure is low
2. Jacket air holes obstructed
3. Pilot replacement
1. Verify no gasoline or flammable vapors are present
2. Reset control using ON/OFF switch
on the gas control valve
3. Replace the flammable vapor sensor
1. Replace FV sensor
2. Replace FV sensor wiring
3. Replace gas control valve
1. Check thermal well wiring connection
2. Replace thermal well
1. Replace gas control valve
2. Replace thermal well
1. Cycle power to gas control valve
2. Replace gas control valve
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.
31
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
Replacement Parts.
For 40 and 50 gallon models using natural or LP gas.
Instructions For Placing a Parts Order
Rubber
Coupling
Blower
Assembly
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.
** Heat Trap Nipple
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.
*Burner Assembly Kit
** Heat
Trap
Nipple
Anode rod
Flue baffle and hanger
Dip tube
Dip tube gasket
Temperature and pressure
relief valve
The kit provides extra speed clips
and tamper resistant screws.
** May differ in actual appearance.
Drain valve
Gas Control (Thermostat)
Gas Control Shank
*Burner
*Burner supply tube
Flammable Vapor Sensor
*Burner Access Door Gasket
32
*Burner orifice
*Igniter
*Burner Access Door
*Sight Glass
Jacket Door
*Burner Access Door Grommet
Notes:
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33
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 regulation
248 CMR 4.00 and 5.00 for installation of through – the – wall vented gas
appliances as follows:
(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 finished grade
in the area of the venting, including but not limited to decks and porches, the
following requirements shall be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of
installation of the side wall horizontal vented gas fueled equipment, the
installing plumber or gasfitter shall observe that a hard wired carbon
monoxide detector with an alarm and battery back-up is installed on the floor
level where the gas equipment is to be installed. In addition, the installing
plumber or gasfitter shall observe that a battery operated or hard wired
carbon monoxide detector with an alarm is installed on each additional level
of the dwelling, 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 qualified 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
detector with alarm and battery back-up may be installed on the next
adjacent floor 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 certified.
3. SIGNAGE. A metal or plastic identification 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 horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in print
size no less than one-half (1/2)“ in size, "GAS VENT DIRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS".
34
4. INSPECTION. The state or local gas inspector of the side wall horizontally
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
installed 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 flue gases, but identifies "special venting systems", the following
requirements shall be satisfied 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.
✁
✁
Cut here
Cut here
Please place in envelope and mail to:
Rheem Manufacturing Company
Warranty Registration Department
P.O. Box 34070
Louisville, KY 40232-4070
35
Consumer Product Ownership Registration
Follow these three steps to protect your
new appliance investment:
Complete and mail
this Consumer
Product Ownership
Registration today.
1 3
Model Number Serial Number
2
If you require service, call 800-431-1549.
After mailing the
registration below,
store this document
in a safe place. It
contains information
you will need should
you require service.
Read your Use
and Care Manual
carefully. It will
help you operate
your new appliance
properly.
Cut here
✁
Consumer Product Ownership Registration
Important
Mail
Today!
First
Name
Last
Name
Street
Address
Water Heater Serial Number
Mr. ■ Ms. ■ Mrs. ■ Miss ■
Model Number
Apt. #
City
State
Date
Placed In
Use
Month
Phone
Number
NOTICE: Failure to complete and return this card does not diminish your limited warranty rights.
36
Zip
Code
Day
_ _
Year
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