Rheem | 120 Volt | Operating instructions | Rheem 120 Volt Operating instructions

Use & Care Manual
With Installation Instructions for the Installer
Electric Point of Use
Water Heaters
Single Element 120 Volt Operation
Residential 21/2 –20 Gallon
Model: GE Series
The purpose of this manual is twofold: one, to provide the installer
with 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 trouble shooting of the water heater. This manual
includes a parts list.
It is imperative that all persons who are expected to install, operate
or adjust this water heater read the instructions carefully so that they
may understand how to perform these operations.
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.
IMPORTANT SAFETY INSTRUCTIONS
WARNING—When using electrical appliances, basic safety precautions to reduce the risk of fire, electric shock, or injury to
persons should be followed, including:
READ ALL INSTRUCTIONS BEFORE USING THIS
WATER HEATER.
The cord and plug connected water heater covered in
this manual (21/2 gallon models) must be grounded.
Connect only to properly grounded outlet. See “Electrical
Connections” section on page 8.
Install or locate this water heater in accordance with
the provided installation instructions.
Use this water heater only for its intended use as
described in this manual.
As with any appliance, close supervision is necessary
when used by children.
Do Not use an extension cord set with this water heater.
If no receptacle is available adjacent to the water heater,
contact a qualified electrician to have one properly installed.
Do Not operate this water heater if it has a damaged
cord or plug, if it is not working properly, or if it has
been damaged or dropped.
This water heater should be serviced only by qualified
service personnel. Contact nearest authorized service
center for examination, repair or adjustment.
SAVE THESE
INSTRUCTIONS
Manufactured under trademark license by:
®
LISTED
786H
Printed in USA
Rheem Manufacturing Company
2600 Gunter Park Drive East, Montgomery, AL 36124-4020
Part No. AP12169-5 (01/05)
Pub. No. 49-50013-4
11-03 JR
Safety Instructions
Installation Instructions
Operating Instructions
Care and Cleaning
Troubleshooting Tips
Customer Service
Safety Information
IMPORTANT!
Safety Precautions . . . . . . 3, 4
Fill out and return the Consumer Product Registration Card that is
in the back of this manual.
Installation Instructions
FOR YOUR RECORDS
Location . . . . . . . . . . . . . . . . . . 5
Write the model and serial numbers here:
Water Connections . . . . . . . . . 6
#
Electrical Connections . . . . . . 8
#
Pipe Insulation . . . . . . . . . . . . 10
You can find them on a label on the appliance.
Heat Traps. . . . . . . . . . . . . . . . 10
Staple sales slip or cancelled check here.
Installation Checklist . . . . . . . 11
Proof of the original purchase date is needed to obtain service
under the warranty.
Operating Instructions
Safety Controls. . . . . . . . . . . . 12
Water Temperature . . . . . . . . 13
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 a great deal of 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.
Care and Cleaning
IF YOU NEED SERVICE
Draining . . . . . . . . . . . . . . . . . . 14
If you do need service, you can relax knowing help is only a phone
call away. For service call 800-431-1549.
Extended Shut-Down . . . . . . 14
Maintenance. . . . . . . . . . . . . . 14
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.
Troubleshooting Tips
!
Before You Call
For Service. . . . . . . . . . . . . . . . 15
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.
Customer Service
Parts List . . . . . . . . . . . . . . . . 16
Wiring Diagram . . . . . . . . . . . 17
Product Registration . . 19, 20
2
Notice:
Attention is called to observe a specified
procedure or maintain a specific condition.
Safety Instructions
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
DANGER!
WATER TEMPERATURE SETTING
Installation Instructions
Safety and energy conservation are factors to be considered when selecting the water
temperature setting of 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 near the
thermostat access panel.
Time/Temperature Relationship in Scalds
!
DANGER
Water Temperature Time To Produce a Serious Burn
More than 5 minutes
11/2 to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 11/2 seconds
About 1 second
Operating Instructions
120°F
125°F
130°f
135°F
140°F
145°F
150°F
155°F
Table courtesy of Shriners Burn Institute
ESE
Thermostat
dial pointer
150°F
(66°C)
90°F
(32°C)
125°F (52°C)
TURN OFF
POWER
BEFORE
SERVICING
Refer to the Operating
Instructions in this
manual for detailed
instructions in how to
adjust the thermostat(s).
DANGER: Hotter water increases the potential for
Hot Water SCALDS.
3
Customer Service
Thermostat
protective
cover
The illustration at the left
shows the temperature
adjustment dial used
for setting the water
temperature.
Troubleshooting Tips
T
ESE
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.
Reset button
R
Children, disabled and elderly are
at highest risk of being scalded.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
The temperature of the water in the heater is
regulated by the adjustable surface mounted
thermostat(s) located behind the jacket access
panel(s). Dual element heaters have two
thermostats. To comply with safety regulations
the thermostat(s) were set at 120°F before the
water heater was shipped from the factory.
R
Water temperature over 125°F can
cause severe burns instantly or
death from scalds.
NOTICE: Households with small children, disabled,
or elderly persons may require a 120°F or lower
thermostat setting to prevent contact with “HOT”
water.
Care and Cleaning
BURN
The chart shown above may be used as a guide
in determining the proper water temperature for
your home.
T
HOT
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.
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 cost. 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
electric utility.
Operating Instructions
Installation Instructions
Safety Instructions
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
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, 400 P Street,
Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater dealer.
Care and Cleaning
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
Troubleshooting Tips
Have the installer show you the location of the circuit breaker and how to shut it
off if necessary. Turn off the circuit breaker if the water heater has been
subjected to overheating, fire, flood, physical damage or if the ECO 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.
● 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.
Customer Service
● Be sure your appliance is properly
installed in accordance with local codes
and the provided installation
instructions.
READ AND FOLLOW THIS SAFETY INFORMATION
CAREFULLY.
4
SAVE THESE INSTRUCTIONS
The location chosen for the water heater must take into consideration the following:
Local Installation Regulations
Electrical Code. It is available from some
local libraries or can be purchased from
the National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269
as booklet ANSI/NFPA 70.
Location
access panels can be removed to permit
inspection and servicing such as removal
of elements or checking controls.
The water heater and water lines
should be protected from freezing
temperatures. Do not install the water
heater in outdoor, unprotected areas.
Locate the water heater in a clean dry
area as near as practical to hot water
fixtures, or close to the water faucet
most frequently used.
Locate the water heater in a clean dry
area as near as practical to the area of
greatest heated water demand. Long
uninsulated hot water lines can waste
energy and water.
Place the water heater in such a manner
that the thermostat and element
B
To open drain, line
should be at least 3/4″
ID and pitched for
proper drainage.
Troubleshooting Tips
A—Diameter of water
heater plus 2″ min.
B—Maximum 2″
Care and Cleaning
CAUTION: The water heater should
not be located in an area where leakage
of the tank or connections will result in
damage to the area adjacent to it or to
lower floors of the structure. Where
such areas cannot be avoided, it is
recommended that a suitable catch
pan, adequately drained, be installed
under the water heater.
Operating Instructions
This water heater is designed to meet a
wide range of applications. It fulfills a
demand for a small water heater that can
be installed in a limited space such as under
countertops, in cabinets or in a closet.
Installation Instructions
This water heater must be installed in
accordance with these instructions, local
codes, utility codes, utility company
requirements or, in the absence of local
codes, the latest edition of the National
Safety Instructions
Installing the water heater.
A
NOTICE: Auxiliary catch pan MUST conform to local codes.
Catch Pan Kits are available from the store where the water
heater was purchased, or any water heater distributor.
Customer Service
5
Inspect Shipment
Inspect the water heater for possible damage. Check the markings on the rating
plate of the water heater to be certain the power supply corresponds to the water
heater requirements.
Installation Instructions
Safety Instructions
Installing the water heater.
Thermal Expansion
Determine if a check valve exists in the
inlet water line. It may have been installed in
Operating Instructions
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
“c
line with no check valve or back flow prevention
device is referred to as an “open” water
system.
Care and Cleaning
As water is heated, it expands in volume and
creates an increase in pressure within the
water system. This action is referred to as
“tthermal 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 “cclosed water system,” however, prevents
the expanding water from flowing back into
the main supply line, and the result of
“tthermal expansion” can create a rapid and
dangerous pressure increase in the water
heater and the 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. 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.
NOTICE: 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 water
connections on heater. Any
heat applied to the water
supply fittings will permanently
damage the dip tube and/or
heat traps.
Customer Service
Troubleshooting Tips
Water Supply Connections
6
Refer to the illustrations on the following
page for suggested typical installation.
The installation of unions or flexible copper
connectors is recommended on the hot
and cold water connections so that the
water heater may be easily disconnected
for servicing. Connect cold water supply
line to 3/4” pipe connection near bottom
of water heater on the 6 gallon and 20
gallon models. Install a shut-off valve and
a drain valve (not supplied with heater,
except 2 1/2 gal. models) in cold water line
near water heater. Connect hot water line
to 3/4” pipe connection marked HOT on
side near top of water heater. On the
2 1/2 gallon models, the hot and cold
water connections are 1/2” pipe
connections and are located on top of the
heater. Local codes may require an
anti-siphon device on the water inlet of a
side connect water heater.
Safety Instructions
Typical Installation
Union
Hot water outlet
to fixtures
Water
Heater
Jacket
Anode
Temperature &
pressure relief
valve
Jacket
access
panel
To cold water
supply
Drain valve
(not supplied)
Auxiliary catch pan
Auxiliary catch pan
drain line
Cold water supply
(use only copper
conductors)
6″ air gap
Power supply
cord 21/2 gal.
models only
Shut-off valve
Relief
valve
discharge
line
6″
Temperature &
pressure relief
valve
Drain valve*
Water
Heater
Jacket
Auxiliary catch
pan drain line
Suitable open drain
Jacket access
panel
Operating Instructions
Opening
for 1/2″
or 3/4″
electrical
fitting
Shut-off valve
Relief
valve
discharge
line to
suitable
open
drain
Unions
Installation Instructions
Recommended
heat trap
6″ minimum
Auxiliary
catch pan
Hot water
outlet
(to fixtures)
Suitable open drain
*The drain valve is located below and to the right of jacket access panel and is
not visible in this view.
Vacuum Relief Valve
(Not Supplied)
Care and Cleaning
If required, install per local codes
and valve manufacturer’s
instructions.
Relief Valve
The Btuh rating of the relief valve must
not be less than the input rating of the
water heater as indicated on the rating
label located on the front of the heater
(1 watt=3.412 Btuh).
Connect the outlet of the relief valve to a
suitable open drain so that the discharge
water cannot contact live electrical parts
or persons and 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.
7
Customer Service
WARNING: 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.
Troubleshooting Tips
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 installed 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.
Safety Instructions
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. (Refer to the
Certificate of Limited
Warranty for complete terms
and conditions.)
Care and Cleaning
Make certain the drain valve is completely
closed.
A steady flow of water from the hot water
faucet(s) indicates a full water heater.
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.
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 temperature.
Additional information on this subject
may be found at www.rheem.com
under “Library”. Scroll down to the
Technical Service Bulletins 1300 Series
Section and choose Bulletin #1303.
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.
Electrical Connections
CAUTION: The
presence of water in the
piping and water heater
does not provide
sufficient conduction for
a ground. Non-metallic
piping, dielectric unions,
flexible connectors etc.
can cause the water
heater to be electrically
isolated.
Customer Service
Troubleshooting Tips
To Fill the Water Heater
Condensation
Operating Instructions
Installation Instructions
Installing the water heater.
8
All wiring must conform to local codes
or latest edition of National Electrical
Code ANSI/NFPA 70.
The voltage requirements and wattage load
for the water heater are specified on the
rating plate on the front of the water heater.
21/2 gallon models are supplied with a
plug connected power supply cord for
use only in 120 VAC applications. The
cord must be connected to a properly
grounded receptacle on a branch circuit
with copper conductors, an over current
protection device and a suitable
disconnect means. If desired, straight
field wiring connections can be made to
these models by removing the access
cover on front of heater and
disconnecting the cord set from the
thermostat and the grounding plug. Remove
the cord set and strain relief bushing
from the junction bracket. The hole in the
junction bracket will accommodate 1/2″
or 3/4″ electrical fittings. Refer to wiring
diagrams in the back of this manual for
wiring connections.
6 through 20 gallon models are completely
wired to the junction bracket inside jacket
at front of water heater. An opening for
1/2″ or 3/4″ electrical fitting is provided
for field wiring connections. A separate
branch circuit with copper conductors,
overcurrent protective device and suitable
disconnecting means must be provided
by a qualified electrician. Refer to wiring
diagrams in the back of this manual for
wiring connections.
The branch circuit wiring should
include either:
Metallic conduit or metallic sheathed
cable approved for use as a grounding
conductor and installed with
fittings approved for the purpose.
Non-metallic sheathed cable, metallic
conduit or metallic sheathed cable
not approved for use as a ground
conductor shall include a separate
conductor for grounding. It should
be attached to the ground terminals
of the water heater and the
electrical distribution box.
Safety Instructions
NOTICE: This guide recommends minimum branch circuit sizing and wire size based on National Electric Code.
Refer to wiring diagrams in this manual for field wiring connections.
Branch Circuit Sizing and Wire Size Guide
Total Water
Heater Wattage
208V
15
15
15
15
20
25
25
25
30
30
35
40
–
240V
15
15
15
15
20
20
20
25
25
30
30
35
50
120V
12
12
10
10
8
–
–
–
–
–
–
–
–
208V
14
14
14
14
12
10
10
10
10
10
8
8
–
240V
14
14
14
14
12
12
12
10
10
10
10
8
8
Operating Instructions
120V
20
20
25
30
35
–
–
–
–
–
–
–
–
Copper Wire Size AWG Based
on N.E.C. Table 310-16 (75°C)
Installation Instructions
1500*
1700
2000
2500
3000
3500
3800
4000
4500
5000
5500
6000
9000
Recommended Over Current Protection
(fuse or circuit breaker amperage rating)
*Less than 1500 watts may be wired 14 gauge with 15 amp protection. Check Local Electrical Codes, as they will also apply.
Insulation Blankets
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:
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.
● Do not cover the electrical junction
box of the water heater.
● Do not cover the temperature and
pressure relief valve.
Care and Cleaning
Insulation blankets, available to the
general public, for external use on
electric 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.
● Do not cover jacket access panels to
thermostats and heating elements.
Troubleshooting Tips
● Do not cover the operating or warning
labels attached to the water heater or
attempt to relocate them on the
exterior of insulation blanket.
Customer Service
The manufacturer disclaims any
responsibility for such loss or injury
resulting from the use of such
unauthorized devices.
9
Safety Instructions
Installing the water heater.
Hot and Cold Pipe Insulation Installation
I
V
A
L
V
E
E
F
CO
HO
T
LD
R
E
L
I
V
A
L
V
E
E
F
CO
LD
Typical vertical piping
arrangement
Typical horizontal piping
arrangement
For increased energy efficiency, some
water heaters have been supplied with
two 24” sections of pipe insulation.
Typical side piping
arrangement
Please install the insulation, according
to the illustrations above, that best
meets your requirements.
Relief Valve Insulation Installation
CAUTION: Ensure the
T&P Valve opening is not
obstructed by the
insulation.
HO
T
R
E
L
Operating Instructions
T
R
E
L
Installation Instructions
HO
I
V
A
L
V
E
E
F
Care and Cleaning
CO
LD
Typical top connection arrangement
Typical side connection arrangement
For increased energy efficiency, some
water heaters have been supplied with
a 2-3/8” section of pipe insulation.
Slip the insulation cover over the T&P
Valve through the center hole and align
the hole in the side with the opening of
the T&P Valve.
Troubleshooting Tips
Please install the insulation, according
to the illustrations above, that best
meets your requirements.
Heat Traps
Customer Service
For increased energy efficiency, some
water heaters have been supplied with
factory installed heat traps in the hot
outlet line and cold water inlet line.
10
NOTICE: 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 water
connections on heater. Any heat applied
to the water supply fittings will
permanently damage the dip tube and/or
heat traps.
Water Heater Location
■ Close to area of heated water
demand.
■ Provisions made to protect area
from water damage.
■ Indoors and protected from
freezing temperatures.
■ Sufficient room to service heater.
Installation Instructions
■ Area free of flammable vapors.
Safety Instructions
Installation checklist.
■ Sufficient fresh air supply for
proper operation of water heater.
Water Supply
■ Water heater completely filled
with water.
Operating Instructions
■ Air purged from water heater and
piping.
■ Water connections tight and
free of leaks.
Relief Valve
■ Temperature and Pressure Relief
Valve properly installed and
discharge line run to open drain.
Care and Cleaning
■ Discharge line protected from
freezing.
Wiring
■ Power supply voltage agrees with
water heater rating plate.
Troubleshooting Tips
■ Branch circuit wire and fusing or
circuit breaker of proper size.
■ Electrical connections tight and
unit properly grounded.
Customer Service
11
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 power to water heater
if it has been subjected to over
heating, fire, flood, physical
damage.
Do Not turn on water heater
unless it is filled with water.
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.
Do Not turn on water heater if
cold water supply shut-off valve
is closed.
Safety Controls
CAUTION: The cause
of the high temperature
condition must be
investigated by qualified
service technician and
corrective action must
be taken before placing
the water heater in
service again.
The water heater is equipped with a
combination thermostat and temperature
limiting control (ECO) that is located
above the heating element in contact
with the tank surface. If for any reason
the water temperature becomes
excessively high, the temperature
limiting control (ECO) breaks the power
circuit to the heating element. Once the
control opens, it must be reset manually.
To reset the temperature limiting
control:
Turn off the power to the water
heater.
Remove the jacket access panel(s)
and insulation.
The thermostat protective cover
should not be removed.
Press the red RESET button.
Replace the insulation and jacket
access panel(s) before turning on
the power to the water heater.
Troubleshooting Tips
Care and Cleaning
Operating Instructions
Installation Instructions
Safety Instructions
Operating the water heater.
Emergency Instructions
WARNING: If the water heater has
been subjected to flood, fire, or
physical damage, turn off power and
water to the water heater.
Customer Service
Do not operate the water heater again
until it has been thoroughly checked by
qualified service personnel.
12
The temperature of the water in the
water heater can be regulated by setting
the temperature dial of the adjustable
surface mounted thermostat(s) located
behind the jacket access panel(s).
Dual element heaters have two
thermostats.
Safety and energy conservation are
factors to be considered when selecting
the water temperature setting of the
water heater’s thermostat(s). The lower
the temperature setting, the greater the
savings in energy and operating costs.
Mixing valves are available for reducing
point of use water temperature by mixing
hot and cold water in branch water lines
. Contact a licensed plumber or the local
plumbing authority for further
information.
The chart below may be used as a guide
in determining the proper water
temperature for your home.
Time/Temperature Relationship in Scalds
Water Temperature
Time To Produce a Serious Burn
More than 5 minutes
11/2 to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 11/2 seconds
About 1 second
Care and Cleaning
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
Table courtesy of Shriners Burn Institute
T
ESE
ESE
R
R
T
Turn off the power to the water
heater.
Remove the jacket access panel(s)
and insulation exposing the
thermostat(s).
Thermostat
dial pointer
150°F
(66°C)
90°F
(32°C)
125°F (52°C)
TURN OFF
POWER
BEFORE
SERVICING
The thermostat protective cover(s)
should not be removed.
Using a small screwdriver, set the
thermostat(s) dial pointer(s) to
the desired temperature.
Replace the insulation and jacket
access panel(s). Turn on the power
to the water heater.
Customer Service
Thermostat
protective
cover
Troubleshooting Tips
If adjustment is necessary…
Reset button
Operating Instructions
To comply with safety regulations the
thermostat(s) are factory set at 120°F
or less where local codes require. This is
the recommended starting point.
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).
Installation Instructions
! 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.
Safety Instructions
Water Temperature Setting
Type 59T thermostat and
protective cover.
13
Draining the Water Heater
CAUTION: Shut off power to the
water heater before draining water.
DANGER: Before manually operating
the 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.
Customer Service
Troubleshooting Tips
Care and Cleaning
Operating Instructions
Installation Instructions
Safety Instructions
Care and cleaning of the water heater.
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.
Vacation and Extended Shut-Down
NOTICE: Refer to the
Hydrogen Gas Caution in
the Operating Instructions.
If the water heater is to remain idle for an
extended period of time, the power and
water to the appliance should be turned
off to conserve energy and prevent a
build-up of dangerous hydrogen gas.
The water heater and piping should be
drained if they might be subjected to
freezing temperatures.
DANGER: Before
manually operating the
relief valve, make certain
no one will be exposed to
the danger of coming in
contact with 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.
NOTICE: If the temperature
and pressure relief valve
on the hot water heater
discharges periodically,
this may be due to thermal
expansion in a closed
water system. Contact
the water supplier or
your plumbing contractor
on how to correct this.
Do not plug the relief
valve outlet.
14
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.
Routine Preventative Maintenance
Properly maintained, your water heater
will provide years of dependable troublefree service.
It is suggested that a routine preventive
maintenance program be established
and followed by the user.
It is further recommended that a
periodic inspection of the operating
controls, heating element and wiring
should be made by service personnel
qualified in electric appliance repair.
Most electrical appliances, even when
new, make some sound when in
operation. If the hissing or singing
sound level increases excessively, the
electric heating element may require
cleaning. Contact a qualified installer or
plumbing contract to inspect.
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.
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. 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.
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 shorten the life of the
glass lined tank and will exclude
warranty coverage.
Safety Instructions
Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the chart on this
page first and you may not need to call for
service.
Possible Causes
Rumbling noise
Water conditions in your
home caused a build up of
scale or mineral deposits
on the heating elements.
● Remove and clean the heating elements.
Relief valve
producing popping
noise or draining
Pressure build up caused
by thermal expansion
to a closed system.
● This is an unacceptable condition and must be
corrected. Contact the water supplier or plumbing
contractor on how to correct this. Do not plug the
relief valve outlet.
Rattling noise
during periods
of water usage
Internal heat trap
fittings in operation.
● This is normal for heat trap fittings when in operation
and does not indicate a need for service.
Not enough or
no hot water
Water usage may have
exceeded the capacity
of the water heater.
● Wait for the water heater to recover after an abnormal
demand.
A fuse is blown or a circuit
breaker tripped.
● Replace fuse or reset circuit breaker.
Electric supply may be off.
● Make sure electric supply to water heater and
disconnect switch, if used, are in the ON position.
The thermostat may
be set set too low.
● See the Temperature regulation of the water heater
section of this manual.
Leaking or open hot
water faucets.
● Make sure all faucets are closed.
Electric service to your
home may be interrupted.
● Contact the local electric utility.
Improper wiring.
● See the Installing the water heater section of this
manual.
Manual reset limit (ECO)
● See the Temperature regulation of the water heater
section of this manual.
Cold water inlet
temperature may be
colder during the
winter months.
● This is normal. The colder inlet water takes longer
to heat.
The thermostat
is set too high.
● See the Temperature regulation of the water heater
section of this manual.
Operating Instructions
Care and Cleaning
Troubleshooting Tips
Water is too hot
What To Do
Installation Instructions
Problem
15
Customer Service
CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating elements or other
safety devices. Refer repairs to qualified service personnel.
Safety Instructions
Replacement Parts.
For 21/2 gallon models and 6, 10 & 20 gallon models with single elements.
Instructions For Placing a Parts Order
To place orders using a Visa/MasterCard
call 800-431-1549.
Installation Instructions
All parts orders should include:
The model and serial number of the
water heater from the rating plate.
Specify voltage and wattage as
marked on the rating plate.
Part description (as noted below)
and number of parts desired.
CAUTION: For your safety DO NOT
attempt repair of electrical wiring,
thermostat(s), heating elements or
other operating controls. Refer repairs
to qualified service personnel.
21/2 Gallon Models
Operating Instructions
Relief valve
Cavity insulation
Thermostat
protective cover
Thermostat
T
E S
E
E
R
R
S E
T
09
041
001
031
011
Care and Cleaning
CS
ID-
021
O-
MR
EH
T
Electrical cord
set (120 VAC
models only)
FFO
N
RE RUT
W
ER OP
O
GN FEB
ICI
VR
ES
Jacket
access
panel
Heating
element
gasket
Troubleshooting Tips
Thermostat
bracket
Drain valve
shroud
Drain valve
Heating
element
6, 10 and 20 Gallon Models
Anode rod
Shroud
Snap
bushing
Thermostat
Thermostat protective cover
Cavity insulation
S E
T
R
E
R
E
T
S E
Customer Service
Relief
valve
90
140
100
130
110
120
TH
Nipple,
hot outlet
ER
M-
O-D
ISC
OFF
TURN R
POWE E
BEFOR
CING
SERVI
Shroud
16
Nipple,
cold inlet
Thermostat
bracket
Heating element
Heating element gasket
Jacket
access
panel
Safety Instructions
Wiring diagrams.
Wiring Diagrams for Type–59T Therm-o-disc Thermostats
G
BLACK
JUNCTION
BOX
N
TO PROPERLY
GROUNDED
RECEPTACLE ON
BRANCH CIRCUIT
Installation Instructions
H
1
THERMOSTAT
& HIGH TEMP.
1
Operating Instructions
WHITE
2
BLACK
2
HEATING
ELEMENT
120 V Plug Connected cord set ONLY
Care and Cleaning
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
G*
N
BLACK
1
THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
WHITE
2
1
Troubleshooting Tips
JUNCTION
BOX
H
BLACK
2
Customer Service
HEATING
ELEMENT
120 V Field Connected ONLY
17
Customer Service
Troubleshooting Tips
Care and Cleaning
Operating Instructions
Installation Instructions
Safety Instructions
Notes.
18
✁
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
19
Consumer Product Ownership Registration
Follow these three steps to protect your
new appliance investment:
1 2 3
Complete and mail
this Consumer
Product Ownership
Registration today.
After mailing the
registration below,
store this document
in a safe place. It
contains information
you will need should
you require service.
Model Number
Read your Owner's
Manual carefully.
It will help you
operate your new
appliance properly.
Serial Number
If you require service, call 800-431-1549.
✁
Cut here
Consumer Product Ownership Registration
t
an
ort il
p
Im Ma ay!
d
To
First
Name
Mr. ■
Water Heater
Ms. ■
Mrs. ■
Model Number
Serial Number
Miss ■
Last
Name
Street
Address
Apt. #
City
State
Date Placed
In Use
Month
Phone
Number
Zip
Code
Year
Day
_
_
NOTICE: Failure to complete and return this card does not diminish your limited warranty rights.
20
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