Use & Care ManualWith Installation Instructions for the Installer

Marathon Thermal Storage Tanks
50, 85, & 105 Gallon■■■✦■■■The purpose of this manual is twofold:one, to provide the installer with the basic
directions and recommendations for the proper
installation of the storage tank; and two, forthe owner–operator, to explain the features,operation, safety precautions, maintenanceand troubleshooting of the storage tank. Thismanual also includes a parts list.
It is imperative that all persons who are
expected to install, operate or adjust thisstorage tank read the instructions carefully
so they may understand how to performthese operations. If you do not understandthese instructions or any terms within it, seek
professional advice.
Any questions regarding the operation,
maintenance, service or warranty of thisstorage tank should be directed to the seller
from whom it was purchased. If additional
information is required, refer to the section on“If you need service.”
Do not destroy this manual. Please read
carefully and keep in a safe place for futurereference.

!
!


Recognize this symbol as anindication of Important Safety
Information!
 alifornia Proposition 65 Warning:
C
This product contains chemicals known
to the State of California to cause
cancer, birth defects or otherreproductive harm.

®
LISTED44LR

AP17949 (09/15)

Safety Information
Safety Precautions. . . . . . . . 2,3

Installation Instructions
Location. . . . . . . . . . . . . . . . . . 4
Water Supply Connections. . . 6

Operating Instructions
Safety Controls . . . . . . . . . .  10
Water Temperature . . . . . . . . 10

Care and Cleaning

FOR YOUR RECORDS
Write the model, serial numbers, and installation details on theback cover of the manual.
This information is located on the rating plate (silver label) on
the unit.
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 maintainyour storage tank properly. A little preventive care on your part cansave you time and money over the life of your storage tank.
You’ll find many answers to common problems in the
Troubleshooting Guide. If you review the chart of Troubleshooting
Tips first, you may not need to call for service.

Draining. . . . . . . . . . . . . . . . . 11
Maintenance. . . . . . . . . . . . . . 11
Extended Shut-Down. . . . . . 11

READ THE SAFETY INFORMATIONYour safety and the safety of others are very important. There
are many important safety messages in this manual and on yourappliance. Always read and obey all safety messages.

!

Troubleshooting Tips
Before You Call
For Service. . . . . . . . . . . . . .  12

This is the safety alert symbol. Recognize this symbol
as an indication of Important Safety Information!
This symbol alerts you to potential hazards that cankill or hurt you and others.

Customer Service

All safety messages will follow the safety alert symbol andeither the word “DANGER”, “WARNING”, “CAUTION” or“NOTICE”.
These words mean:

Parts List. . . . . . . . . . . . . . . .  14!

Replacement Parts. . . . . . . . . 15
Warranty. . . . . . . . . . . . . . 16-18
How To Register. . . . . . . 18-19
If You Need Service . . . . . . . 20

An imminently hazardous situation
DANGER			
that will result in death or serious
			injury.

! WARNING

			
			

!

CAUTION
A potentially hazardous situation that			
may result in minor or moderate 					injury.

NOTICE:		2

2

A potentially hazardous situation that
could result in death or serious injury
and/or damage to property.

Attention is called to observe a 					
specified procedure or maintain 					a specific condition.

IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.

WARNING!

For your safety, the information in this manual must be followed to minimize the risk offire or explosion, electric shock, or to prevent property damage, personal injury, or loss oflife.
Be sure to read and understand the entire Use and Care Manual before attempting
to install or operate this storage tank. It may save you time and cost. Pay particularattention to the Safety Instructions. Failure to follow these warnings could result inserious bodily injury or death. Should you have problems understanding the instructionsin this manual, or have any questions, STOP, and get help from a qualified service
technician.

FOR INSTALLATIONS IN THE STATE OF CALIFORNIA
California Law requires that residential water heaters and storage tanks must be braced,anchored or strapped to resist falling or horizontal displacement due to earthquake
motions. For residential storage tanks 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 astorage tank dealer.
However, applicable local codes shall govern installation. For residential storage tanks
of a capacity greater than 52 gallons, consult the local building jurisdiction for acceptablebracing procedures.

SAFETY PRECAUTIONS● Read this manual entirely before installing
or operating the storage tank.
● Be sure your appliance is properly installedin accordance with local codes and theprovided installation instructions.

● Do not attempt to repair or replace any partof your storage tank unless it is specifically
recommended in this manual. All otherservicing should be referred to a qualified
technician.

READ AND FOLLOW THIS SAFETY INFORMATION
CAREFULLY.

SAVE THESE INSTRUCTIONS

3

Installing the Storage Tank
Local Installation Regulations
This storage tank must be installed inaccordance with these instructions, local
or federal codes.

In order to meet NSF International
requirements for Standard 5, the baseof the storage tank must be sealed to
the floor to prevent seepage underneath.
Apply a 3/8" bead of RTV Silicone
completely around the floor edge of thebase of the tank.

If the storage tank is to be installed in a
restaurant, or other location where NSF
International listing is required, it must
be weather sealed to the floor, a raised
base, or on a shelf so that seepage cannot
accumulate under it; or elevated to provide
at least (6) inches of clearance from thefloor.

Location
The location chosen for the storage tank must take into consideration thefollowing:
Locate the storage tank in a clean dry area
as near as practical to the area of greatest
heated water demand. Long un-insulated
hot water lines can waste energy andwater.

appliances where high temperatures arepresent, such as wood burning stoves,boilers, or furnaces. High temperatures
can warp or otherwise damage the nonmetallic construction of this storage tank.

The storage tank and water lines should
be protected from freezing temperatures.
Do not install the storage tank in outdoor
unprotected areas or near any otherMake certain the floor underneaththe storage tank is strong enough tosufficiently support the weight of thestorage tank once it is filled with water.

Unit
Capacity(Gallons)

Unit
Capacity(Imperial
Gallons)

Unit
Capacity(Liters)

Height

50
85
105

40
70
84

189
322
397

66 3/470 1/470 3/4

Dimensions (Inches)
1

Diameter

Shipping
Weight(lbs)

Approximate
Full Weight(lbs)

23 1/2
28 1/430 1/4

100
134
152

517
843
1,028

1 Height includes factory installed Temperature and Pressure Relief Valve.

4

Thermal Expansion
Determine if a check valve exists in theinlet 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 watersoftener. 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 backflow 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 isreferred to as “thermal expansion”. In
an “open” water system, expanding water
which exceeds the capacity of the storagetank 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 theresult of “thermal expansion” can createa rapid and dangerous pressure increasein the storage tank and system piping.

This rapid pressure increase can quickly
reach the safety setting of the relief
valve, causing it to operate during eachheating cycle. Thermal expansion, and theresulting rapid and repeated expansion
and contraction of components in thestorage tank and piping system can causepremature failure of the relief valve, andpossibly the heater itself. Replacing therelief 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 thestorage tank and the check valve (referto the illustration on the page 8). The
expansion tank is designed with an air
cushion built in that compresses as thesystem 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 supplieror plumbing inspector for additional
information regarding this subject.

Inspect Storage tankInspect the storage tank for possible damage.

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 suppliedand must be installed in the opening provided and marked for the purpose on the storage tank. No
valve of any type should be installed between the relief valve and the tank. Local codes shall govern the
installation of relief valves.

Temperature and Pressure Relief Valve! WARNING: The

pressure rating of therelief valve must notexceed 150 PSI, themaximum working
pressure of the storagetank as marked on
the rating plate.

Connect the outlet of the relief valve
to a suitable open drain so that thedischarge water cannot contact live
electrical parts or persons and to eliminate
potential water damage.
Piping used should be of a type approvedfor hot water distribution. The dischargeline must be no smaller than the outlet ofthe valve and must pitch downward fromthe valve to allow complete drainage (bygravity) of the relief valve and dischargeline. The end of the discharge line should
not be threaded or concealed and should
be protected from freezing. No valve ofany type, restriction or reducer couplingshould be installed in the discharge line.

5Installing the Storage Tank
Vacuum Relief ValveNOTICE: DO NOT operate
the unit without the vacuum
relief valve for any reason.
Doing so will void the
manufacturer’s warranty.

The vacuum relief valve, which must
be used when installing the storagetank, is factory installed.

to eliminate the negative pressure or
vacuum by admitting air into the tankto equalize the pressure.

The cold water inlet has a vacuum relief valve installed. Certain conditionsin the field may produce a vacuum
or negative pressure condition inside
the storage tank. This negative pressure can cause the tank to fail. The
vacuum relief valve provides a means

It is not recommended to pull avacuum on the unit.
■■■✦■■■

If a vacuum is pulled on the unit, referto the "To Fill the Storage tank" section to ensure the unit is full of water
before operating.

Drain PanNOTICE: Auxiliary
catch pan MUST
conform to local codes.

The storage tank should not belocated in an area where leakage ofthe tank or connections will result indamage to the area adjacent to it or
to lower floors of the structure. It is
recommended that a suitable catch
pan, adequately drained, be installed
under the storage tank.
Catch pan kits are available fromthe store where the storage tank
was purchased, or any water heater
distributor.
Under no circumstance will the
manufacturer be held liable for any
water damage in connection with thisstorage tank.

B = Max 2″

B
A = Diameter ofstorage tankplus 2″ min.
A
This line should be at least 3/4″ ID and pitched forproper drainage to an open drain.

Water Connection Ports – On Sidewall of Unit
Two water connection ports are locatedon the sidewall of the tank. These
ports have 1-1/4” female NPT fittings.
(tapered pipe thread).

Teflon pipe tape or “dope” arerecommended for these twoconnections.

Fittings must be held securely(and not turn) during tightening /installation / removal. Failure to
do so may result in catastrophic
damage to the storage tank.
It is recommended that a threaded
union be installed near the tank.
Maximum flow rate through ports is
20 GPM.

6

Water Supply Connections - Top of Storage Tank
! WARNING: Failure tofollow the instructions
provided in this manual
may permanently damage
the unit and void the
manufacturer’s warranty.

NOTICE: DO NOT
attempt to turn any fitting
connected to the storagetank union hex nuts thatare tightened.
NOTICE: The union hex
nut connections on theunit use rubber seal rings
to provide the water tightseal.
DO NOT use pipe sealanton this joint. DO NOT
torque the union hex
nuts to over 35 ft-lbs
when reinstalling thecomponents.
SOLDER WITH CARE!!!
If sweat connections areused, DO NOT apply heat
directly to any component
directly connected to theunit. Assemblies should bebuilt to a minimum lengthof 12” before attaching
to any connection on theunit to avoid damaging
the unit.

Refer to the illustration on thenext page for suggested typicalinstallation. The installation of unions
or flexible copper connectors is
recommended on the hot and cold
water connections so that the unit may
be easily disconnected for servicing if
necessary. The HOT and COLD water
connections are clearly marked on the
top of the unit. Install a shut-off valve
in the cold water line near the unit.
The hot water connection is provided
with a ¾” or 1” connection dependingon the size of the unit. A metal fitting
should be used for the connection to
the unit at this location. The hot water
connection contains a plastic cap to
contain a rubber seal ring that is used
to form a water tight connection. Takecare when removing the plastic cap so
the rubber seal ring is not lost. Be sure
the rubber seal ring is seated inside theunion hex nut before making the final
connection. DO NOT use pipe sealanton this joint. DO NOT torque theunion hex nuts to over 35 ft-lbs whenreinstalling the components.

The cold water connection and thetemperature and pressure relief
valve are supplied with ¾” NPT
connections. They may be temporarily
disconnected from the unit to easeinstallation by loosening the union
hex nuts connecting the fittings to theunit. The connection of these parts tothe unit use rubber seal rings to forma water tight connection. Re-use therubber seal rings that are provided
with the unit when re-installing thesecomponents. Follow the instructions
listed for the hot water connection toreconnect the union hex nuts.
Minimum Dimension
3/4" Connection: 0.725"
1" Connection: 0.920"
Rubber
Seal
Ring

Hex
Union
Nut

The hot water connection fitting musthave a inside diameter greater than theminimum shown in the picture above.

To Fill the Storage tank
Make certain the drain valve on thestorage tank is completely closed.
Open the shut-off valve in the cold
water supply line.

A steady flow of water from the hotwater faucet(s) indicates a full storage
tank.

Open each hot water faucet slowly toallow the air to vent from the storagetank and piping.

7

Installing the Storage Tank
Typical Installation

Temperature & Pressure
Relief ValvePre-solder 12" minimum
stub pipes before installingto unit.

Cold Inlet Shut Off

Support the relief valve drain pipeusing metal strapping or wire
fastened to the structure overhead

Hot Water Outlet

Heat Trap 6"
Minimum

Seal Ring(Inside nut)
Hex Union Nut(Relief Valve)

Top Water Connection Port

Union
(The addition of a union at
this point will help in thereplacement of the T &P Relief Valve should theneed arise.)

Thermal Expansion
Tank (if required)
See thermal
expansion section
on page 5.

Drain Pipe

Bottom Water Connection PortNo threads permitted
on end of Drain Pipe.

Drain Valve

86” Maximum distance fromdrain pipe to suitable open
drain.

Insulation Blankets! WARNING: If local

codes require external
application of insulation
blanket kits the
manufacturer’s instructions
included with the kit must
be carefully followed.

Insulation blankets, available to thegeneral public, for external use on
storage tanks are not necessary. The
purpose of an insulation blanket
is to reduce the standby heat loss
encountered with storage tank heaters.
The manufacturer’s warranty does notcover any damage or defect caused byinstallation, attachment or use of
any type of energy saving or otherunapproved devices (other than thoseauthorized by the manufacturer) into,
onto or in conjunction with the storagetank. The use of unauthorized energy
saving devices may shorten the life of
the storage tank and may endanger lifeand 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 storagetank, pay careful attention to thefollowing so as not to restrict theproper function and operation of thestorage tank: Do not cover the operating or
warning labels attached to thestorage tank or attempt to relocate
them on the exterior of insulation
blanket.
 Do not cover the vacuum valve,or pressure and temperature relief
valve.
 Inspect the insulation blanket
frequently.

9Installation Checklist
A. Storage Tank Location❑ Close to area of heated water demand.
❑ Indoors and protected from freezing temperatures.
❑ Area free of flammable vapors.
❑ Provisions made to protect area from water damage.
❑ Sufficient room to service unit.

B. Water Supply❑ Storage tank completely filled with water.
❑ Air purged from storage tank and piping.
❑ Water connections tight and free of leaks.

C. Relief Valve❑ Temperature and Pressure Relief Valve properly installed and discharge line
run to open drain.
❑ Discharge line protected from freezing.

Operating the Storage Tank
Safety Precautions
This storage tank will not control the water temperature.

Maximum operating temperature of water in tank = 170° F.
 emperature & Pressure Safety Relief valve opens at: 210° F, and/or 150
T
PSI..

Maximum
flow rate permissable through ports on side wall of tank = 20
GPM.

10

Care and Cleaning of the Storage Tank
Draining the Storage tank
DANGER: Before manuallyoperating the relief valve, makecertain 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 scaldhazard and should be directed to asuitable drain to prevent injury or
damage.
NOTICE: Additional instructions fordraining the unit are located on thestorage tank.

In order to drain the storage tank, turnoff the cold water supply. Open a hotwater faucet first or lift the handle on
the relief valve (and keep open) toadmit air to the tank during draining.
(This will relieve the pressure in theline.)
Attach a garden hose to the drain
valve on the storage tank and direct
the stream of water to a drain. Openthe valve.
Please reference the "To Fill the
Storage tank" section for instructions
on how to refill the unit.

Routine Preventative Maintenance
DANGER: Before
manually operating therelief valve, make certain
no one will be exposed tothe danger of coming incontact with the hot water
released by the valve. The
water may be hot enough tocreate a scald hazard. The
water should be released
into a suitable drain toprevent injury or property
damage.

Properly maintained, your storagetank will provide years of dependable
trouble-free service.
It is suggested that a routine
preventive maintenance program beestablished and followed by the user.
At least once a year, lift and release
the lever handle on the temperaturepressure relief valve, located near
the top of the storage tank, to makecertain the valve operates freely.
Allow several gallons to flush throughthe discharge line to an open drain.
A storage tank’s tank can act as asettling basin for solids suspended
in the water. It is therefore notuncommon for hard water deposits toaccumulate in the bottom of the tank. It
is suggested that a few quarts of water
be drained from the storage tank’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. Strategicallylocated risers in the water pipe systemor water hammer arresting devices canbe used to minimize the problem.
Periodically check for external waterleaks at all connection points.
NOTICE: If the temperature andpressure relief valve on the hot
storage tank 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.
Water conditions can cause mineraldeposits to build up inside pipes.
This build up can reduce theeffectiveness of the vacuum relief
valve. The vacuum relief valve
should be replaced every six years.

Vacation and Extended Shut-Down
If the storage tank is to remain idle foran extended period of time, the water
to the appliance should be turned off
to conserve energy.
If the storage tank is installed in alocation where it could freeze when
not operational, all water must be

drained from the unit and piping If
the tank is full of water and freezes,
the tank will break. See the "Draining
the Storage tank" section for details on
draining the unit. Freeze damage is
not covered under the manufacturer's
warranty.

11

Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the chart on this page first and you may not need tocall for service.

12

ProblemPossible Causes

What to Do

Rumbling noise
upon start-up

Normal settling of internal components.



Relief valve
producing popping
noise or draining

Pressure build up caused by thermal
expansion in a closed system.

 This is an unacceptable condition andN o action required.

must be corrected. Contact the watersupplier or plumbing contractor on how
to correct this. Do not plug the relief
valve outlet.

Notes:13

Replacement Parts
Key No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
▲
▲
▲

14

Description
Dip Tube
Grommet, Large
Grommet, Small
Seal Ring, Large
Seal Ring, Small
Vacuum Valve
Temperature and Pressure Relief Valve
Reducer Bushing, 3/4" NPT x 1" NPT - (105 Gallon Only)
Knock-Out Bracket
Screw, #8 x 3/4"
Junction Box CoverScrew #8-16 x 5/8"
Water Connection Fitting
Screw, SHCS - 5/16-18
Cavity Insulation
Cover Plate
Screw, #10-16 x 5/8"
GasketDrain Valve
Drain PanUse and Care Manual
Not Illustrated

Replacement Parts
50, 85, 105 gallon models.
5
1
4
3
2
7
8
9
10

12 11
13
16

14
15

13

12 11

16
14

3

15

6
17
15

LIMITED WARRANTYMarathon Storage Tanks

EXCLUSIVE WARRANTY – LIMITATION OF LIABILITY

This Limited Warranty is the only Warranty for this unit and its component parts given by Rheem Sales Company, Inc. No one is authorized tomake any other warranties on our behalf. ANY IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, OR FITNESS FOR A PARTICULARPURPOSE, SHALL NOT EXTEND BEYOND THE APPLICABLE WARRANTY PERIODS SPECIFIED IN THIS LIMITED WARRANTY. WATER HEATERINNOVATION’S SOLE LIABILITY WITH RESPECT TO ANY DEFECT SHALL BE AS SET FORTH IN THIS LIMITED WARRANTY, AND ANY CLAIMSFOR INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGE FROM WATER LEAKAGE) ARE EXCLUDED. Some states do not allow
limitations on how long an implied warranty lasts, or for the exclusion of incidental or consequential damages, so the above limitations or exclusions
may not apply to you.
This Limited Warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
It is recommended that you immediately complete the information on the back cover of this manual and retain it in the event warranty service is needed.
Reasonable proof of the date of installation of your storage tank may be required to establish its “in-warranty” status. If you are not able to provide
documentary proof of the date of original installation, the Effective Date of this Limited Warranty will be the date of manufacture of the storage tank plus
90 days.

GENERAL
Rheem Sales Company, Inc. warrants this product and its component parts to be free from factory defects in materials and workmanship, undernormal use and service, for the Applicable Warranty Period set forth below. At its option, Rheem Sales Company, Inc. will repair or replace thedefective storage tank, or defective component part(s), in accordance with the terms of this Limited Warranty, if it fails in normal use and service
during the Applicable Warranty Period. The replacement storage tank must be manufactured by Rheem Sales Company, Inc.. The replacement
component part(s) must be a Rheem Sales Company, Inc. authorized component part(s). The replacement unit will be warranted only for theunexpired portion of the original unit’s Applicable Warranty Period.

WARRANTY EXCLUSIONSThis Limited Warranty will not cover:a) Service trips to your home to teach you how to install, use, or maintain this storage tank or to bring the storage tank installation into
compliance with local building codes and regulations.
b) Conditions including damages, malfunctions or failures resulting from failure to install the storage tank in accordance with applicable building
codes/ordinances or good plumbing and electrical trade practices.
c) Conditions including damages, malfunctions, or failures resulting from improper installation or failure to operate and maintain the storagetank in accordance with the manufacturer’s instructions provided.
d) Performance problems caused by improper sizing of the storage tank or electric service voltage, wiring, or fusing.
e ) Conditions including damages, malfunctions, or failures caused by operating the storage tank with modified, altered, or unapproved parts
installed.
f) Conditions including damages, malfunctions, or failures caused by abuse, misuse, accident, fire, flood, freeze, lightning, acts of God, and thelike.
g) Tank failures (leaks) caused by operating the storage tank in a corrosive or contaminated atmosphere.
h) Conditions including damages, malfunctions, or failures caused by operating the storage tank with an empty, or partially empty, tank (alsoknown as “dry firing”).
i) Conditions including damages, malfunctions, or failures caused by operating the unit at water temperatures exceeding the maximum setting of
the operating, or high limit, control.
j) Tank failures caused by operating the storage tank when it is not supplied with potable water, free to circulate at all times.
k) Conditions including damages, malfunctions or failures caused by subjecting the tank to pressures greater than those shown on the ratinglabel.
l) Conditions including damages, malfunctions or failures resulting from alterations or the use of any attachment, including any energy saving
device, not authorized by Rheem Sales Company, Inc..
m) Units installed outside the fifty states (and the District of Columbia) of the United States of America and the provinces of Canada without priorauthorization from Rheem Sales Company, Inc..
n) Units that have had their rating labels removed. A storage tank should not be operated if the rating label is removed.

LABOR, SHIPPING, AND PROCESSING COSTSThis Limited Warranty does not cover any labor expenses for service, repairs, reinstallation, permits, or removal and disposal of the failed storagetank, or defective component part(s). All such expenses are your responsibility.
Rheem Sales Company, Inc. will pay the transportation costs for an “in-warranty” replacement storage tank, or “in-warranty” replacement
component part(s), to a convenient delivery point (selected by Rheem Sales Company, Inc.) near the place the original storage tank, or originalcomponent part(s), is located. You must pay any local freight charges, including the cost of returning the failed storage tank, or defective
component part(s) to a convenient shipping location (selected by Rheem Sales Company, Inc.).
Rheem Sales Company, Inc. does not authorize, recommend, or receive any benefit from any claims processing or similar fees charged by others toprocess warranty claims for any Rheem Sales Company, Inc. storage tank or component part(s). Rheem Sales Company, Inc. will not reimburse any
party for these, or any other, fees not specifically covered in this Limited Warranty document.

THE EFFECTIVE DATEThe Effective Date of warranty coverage (or the beginning of the Applicable Warranty Periods) is the date of original installation of the storage tank,
if properly documented. If you are not able to provide the documentary proof of the date of original installation, the Effective Date will be the date of
manufacture of the storage tank plus 90 days.

16

APPLICABLE WARRANTY PERIODS

Category

Application• O wned by the original purchaser with proof of purchase• A nd Water heater is registered online within 90 days of
the installation date
• T he original purchaser does not have proof of purchase;orSingle familydwelling

MR & MTS Series

MHD Series

Tank

Parts

Tank

Parts

Extended*
LIFETIME

Extended*
6 years

Extended*
LIFETIME

Extended*
6 years

10 Years

1 year10 years

1 year10 years

1 Year10 years

1 year

5 years

1 year

5 years

1 year• H
 ome is not owned by the original purchaser or• Installed in the Caribbean Islands (except Cuba) In accordance with applicable US law, this product must not besold or re-sold into Cuba or to the Cuban governmentor Cuban nationals. This limited warranty is void withrespect to any products installed in Cuba or otherwise
sold in violation of US law.

• The unit is part of a rental program; or• T he unit is moved from its original installation location• A residential rental property; or• Installed in a commercial building
Commercial• Any agricultural application (ex dairy barn)• A ny application where the water is used as a part of anindustrial or commercial process* Extended warranty is provided to original customer after online product registration under residential installation
HOW TO MAKE A CLAIM
Any claim for warranty assistance must be made promptly. First, determine if your storage tank is “in-warranty” (that is, within the Applicable Warranty
Period). You can determine your unit’s warranty status by obtaining the complete model number, the complete serial number, and the date of original
installation of your storage tank by contacting Rheem Sales Company, Inc. Water Heaters’ Warranty Department (telephone (800) 321-6718) during
normal business hours (Central Time USA) to determine if the Applicable Warranty Period has expired. If your storage tank is “in-warranty”, contact theplumber, or mechanical contractor, that installed it for assistance with the warranty repairs, or replacement, required. You may also select a plumber, or
mechanical contractor, from your local Yellow Pages to assist you. Rheem Sales Company, Inc. Technical Service personnel are available to assist you
by telephone (800) 321-6718 to answer your questions about the operation or repair of your storage tank during normal business hours. Be prepared
to provide the plumber, mechanical contractor, or Rheem Sales Company, Inc. Technical Service person you call with the complete model number,the complete serial number, and the date of original installation of your storage tank in addition to an explanation of your storage tank problem. If an
exact replacement is not available, Rheem Sales Company, Inc. will provide you with the current model of your storage tank, or component part(s), ora replacement unit with comparable operating features. If government regulations or industry certification or similar standards require the replacement
storage tank, or replacement component part(s), to have features not found in the defective storage tank, or the defective component part(s), youwill be charged for the difference in price represented by those required features. If you pay the price difference for those required features and/or
to upgrade the size and/or other features available on a replacement new storage tank, you will also receive a complete new Limited Warranty (withthe full applicable warranty period) for the replacement new storage tank. Rheem Sales Company, Inc. reserves the right to inspect, or require thereturn of, the failed storage tank or the defective component part(s). Each “in-warranty” failure storage tank must be made available to Rheem Sales
Company, Inc. (with the rating label and all the component parts intact) in exchange for the replacement storage tank. Each defective “in-warranty”
component part to be replaced may be required to be returned to Rheem Sales Company, Inc. in exchange for the replacement component part.
Warranty compensation is subject to validation of “in-warranty” coverage by Rheem Sales Company, Inc. Claims Department personnel.
• To obtain warranty compensation for an “in-warranty” storage tank failure, you must provide Rheem Sales Company, Inc. with: (at Rheem
Sales Company, Inc. option) either the failed storage tank (with the rating label and all the component parts intact) or the complete original
rating label (photocopies are not acceptable) removed from the failed storage tank; the complete model number and the complete serial
number of the storage tank that replaced the failed unit; and the date the original storage tank failed. You may also be required to provide
documentary proof of the failed storage tank’s date of original installation to establish its “in-warranty” status.

17• To receive warranty compensation for an “in-warranty” defective component part, you must provide Rheem Sales Company, Inc. with: (atRheem Sales Company, Inc. option) either the defective component part or the part number on the failed component part; the complete
model number and the complete serial number of the storage tank from which the defective component part was removed; and the date thedefective component part failed. You may also be required to provide documentary proof of the date of original installation of the storagetank from which the defective part was removed – or the date of purchase of the part (if it was purchased separately) - to establish the“in-warranty” status of the defective component part.
Warranty claim documentation should be mailed promptly to Rheem Sales Company, Inc.

Rheem Sales Co. Inc.
1241 Carwood Ct
Montgomery, Al. 36117

FOR YOUR RECORDS
Owner Information
Name

Address

Plumber / Mechanical Contractor – Installer Information
Name
Address

Telephone Number

Storage tank Information
Model Number

Serial Number

Date of Installation

How to Register You Product:
Step 1:
1.
2.

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Go to www.rheem.com/warranty
Click Start Registration

Step 2:

1. Click on the Water Heater icon to begin.

How to Register Your Product:
Step 3:

1. Enter the fields on the screen• Warranty Type choices are• Standard• Protection Plus Kit Installed• For Marathon products, always select:• Standard• Install Date is captured but not used to change
the warranty periods. Registration uses manufacturing date. The owner of the water heater
is still required to provide proof of purchase/ownership at the time of claim if the install dateis after the registration date.
• Property type choices are:
• Residential• Business• 2. Click Next

Step 5:

1. Enter contractor information if it is available.
2. Click Next

Step 6:

1. Review confirmation page and make any necessary edits. Once verified click Finish.
Notice the disclaimer at the bottom that explains
the proof of purchase/owner is required at thetime of claim if install date is greater than manufacture date.

Step 4:

1. For Property Type Residential enter the fields
on the screen
2. Click Next

Step 7:

1. You will recieve a confirmation email.
Notice the same disclaimer appears on the confirmation email

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IF YOU NEED SERVICE
1.	Should you have any questions about your new storage tank, or if it requires
repair, or routine maintenance, it is suggested that you first contact yourinstaller, plumbing contractor or previously agreed upon service agency. In theevent 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:					Rheem Sales Co. Inc.
					
1241 Carwood Ct					Montgomery, Al. 36117
When contacting the manufacturer, the following information will be requested:a. Model and serial number of the storage tank as shown on the rating plate attachedto the jacket of the unit.
b. Address where the storage tank is located and physical location in the dwelling.
c. Name and address of installer and any service agency who performed service on
the storage tank.
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.
Additional service information can be found at www.rheem.com.

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