GE Water Heater AP12169 5 User Manual

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.  
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.  
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.  
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:  
Rheem Manufacturing Company  
2600 Gunter Park Drive East, Montgomery, AL 36124-4020  
®
LISTED  
786H  
Part No. AP12169-5 (01/05) Pub. No. 49-50013-4 11-03 JR  
Printed in USA  
 
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 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  
Water Temperature Time To Produce a Serious Burn  
!
D A N G E R  
120°F  
More than 5 minutes  
11/2 to 2 minutes  
125°F  
130°f  
135°F  
140°F  
145°F  
150°F  
155°F  
About 30 seconds  
About 10 seconds  
Less than 5 seconds  
Less than 3 seconds  
About 11/2 seconds  
About 1 second  
Table courtesy of Shriners Burn Institute  
The chart shown above may be used as a guide  
in determining the proper water temperature for  
your home.  
HOT  
NOTICE: Households with small children, disabled,  
or elderly persons may require a 120°F or lower  
thermostat setting to prevent contact with “HOT”  
water.  
BURN  
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.  
Water temperature over 125°F can  
cause severe burns instantly or  
death from scalds.  
Children, disabled and elderly are  
at highest risk of being scalded.  
The illustration at the left  
See instruction manual before  
setting temperature at water  
heater.  
shows the temperature  
Reset button  
adjustment dial used  
for setting the water  
Thermostat  
temperature.  
dial pointer  
Feel water before bathing or  
showering.  
Refer to the Operating  
150°F  
(66°C)  
90°F  
(32°C)  
(52°C)  
125°F  
Instructions in this  
Temperature limiting valves are  
available, see manual.  
TURN OFF  
POWER  
manual for detailed  
BEFORE  
SERVICING  
Thermostat  
protective  
cover  
instructions in how to  
adjust the thermostat(s).  
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.  
DANGER: Hotter water increases the potential for  
Hot Water SCALDS.  
3
 
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.  
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.  
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.  
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 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  
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.  
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.  
READ AND FOLLOW THIS SAFETY INFORMATION  
CAREFULLY.  
SAVE THESE INSTRUCTIONS  
4
 
Installing the water heater.  
The location chosen for the water heater must take into consideration the following:  
Local Installation Regulations  
This water heater must be installed in  
Electrical Code. It is available from some  
accordance with these instructions, local local libraries or can be purchased from  
codes, utility codes, utility company  
requirements or, in the absence of local  
the National Fire Protection Association,  
Batterymarch Park, Quincy, MA 02269  
codes, the latest edition of the National as booklet ANSI/NFPA 70.  
Location  
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.  
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.  
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.  
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  
A—Diameter of water  
B
heater plus 2min.  
B—Maximum 2″  
To open drain, line  
should be at least 3/4″  
ID and pitched for  
proper drainage.  
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.  
5
 
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 power supply corresponds to the water  
heater requirements.  
Thermal Expansion  
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.  
Determine if a check valve exists in the  
inlet water line. 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.  
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.  
As water is heated, it expands in volume and  
creates an increase in pressure within the  
water system. This action is referred to as  
“thermal expansion.” In an “open” water  
system, expanding water which exceeds the  
capacity of the water heater flows back into  
the city main where the pressure is easily  
dissipated.  
A “closed water system,” however, prevents  
the expanding water from flowing back into  
the main supply line, and the result of  
“thermal expansion” can create a rapid and  
dangerous pressure increase in the water  
Water Supply Connections  
Refer to the illustrations on the following  
except 2 1/2 gal. models) in cold water line  
near water heater. Connect hot water line  
NOTICE: Do not apply  
page for suggested typical installation.  
heat to the HOT or COLD  
water connections. If sweat  
connections are used, sweat  
tubing to adapter before fitting  
adapter to the water  
The installation of unions or flexible copper to 3/4” pipe connection marked HOT on  
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,  
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.  
connections on heater. Any  
heat applied to the water  
supply fittings will permanently  
damage the dip tube and/or  
heat traps.  
6
 
Typical Installation  
Unions  
Recommended  
heat trap  
Union  
Temperature &  
pressure relief  
valve  
6minimum  
Anode  
Hot water outlet  
to fixtures  
Water  
Heater  
Jacket  
Temperature &  
pressure relief  
valve  
Power supply  
cord 21/2 gal.  
models only  
Jacket  
access  
panel  
Shut-off valve  
To cold water  
supply  
Cold water supply  
Drain valve*  
Relief  
valve  
Shut-off valve  
Opening  
for 1/2″  
or 3/4″  
electrical  
fitting  
discharge  
line  
Relief  
valve  
Jacket access  
panel  
Water  
Heater  
Jacket  
discharge  
line to  
suitable  
open  
Auxiliary  
catch pan  
Drain valve  
(use only copper  
conductors)  
6″  
Auxiliary catch  
pan drain line  
(not supplied)  
Hot water  
outlet  
(to fixtures)  
drain  
6air gap  
Suitable open drain  
Auxiliary catch pan  
Suitable open drain  
Auxiliary catch pan  
drain line  
*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)  
If required, install per local codes  
and valve manufacturer’s  
instructions.  
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.  
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).  
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 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.  
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.  
7
 
Installing the water heater.  
WARNING: The tank  
must be full of water before  
To Fill the Water Heater  
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  
Make certain the drain valve is completely A steady flow of water from the hot water  
closed.  
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.  
Warranty for complete terms  
and conditions.)  
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 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  
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  
6 through 20 gallon models are completely  
wired to the junction bracket inside jacket  
at front of water heater. An opening for  
1/2or 3/4electrical 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.  
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.  
The branch circuit wiring should  
include either:  
disconnect means. If desired, straight  
field wiring connections can be made to  
these models by removing the access  
cover on front of heater and  
Metallic conduit or metallic sheathed  
cable approved for use as a grounding  
conductor and installed with  
fittings approved for the purpose.  
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 3/4electrical fittings. Refer to wiring  
diagrams in the back of this manual for  
wiring connections.  
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.  
8
 
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  
Recommended Over Current Protection  
(fuse or circuit breaker amperage rating)  
Copper Wire Size AWG Based  
on N.E.C. Table 310-16 (75°C)  
120V  
20  
20  
25  
30  
35  
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
240V  
14  
14  
14  
14  
12  
12  
12  
10  
10  
10  
10  
8
1500*  
1700  
2000  
2500  
3000  
3500  
3800  
4000  
4500  
5000  
5500  
6000  
9000  
8
8
*Less than 1500 watts may be wired 14 gauge with 15 amp protection. Check Local Electrical Codes, as they will also apply.  
Insulation Blankets  
Insulation blankets, available to the  
CAUTION: If local codes require  
general public, for external use on  
the application of an external  
electric water heaters are not necessary.  
insulation blanket to this water  
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  
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 temperature and  
pressure relief valve.  
insulation and standby loss  
requirements making an insulation  
blanket unnecessary.  
Do not cover jacket access panels to  
thermostats and heating elements.  
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 operating or warning  
labels attached to the water heater or  
attempt to relocate them on the  
exterior of insulation blanket.  
The manufacturer disclaims any  
responsibility for such loss or injury  
resulting from the use of such  
unauthorized devices.  
9
 
Installing the water heater.  
Hot and Cold Pipe Insulation Installation  
H
O
T
C
O
L
D
H
O
C
O
Typical side piping  
arrangement  
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.  
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.  
H
O
T
C
O
L
D
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.  
Please install the insulation, according  
to the illustrations above, that best  
meets your requirements.  
Heat Traps  
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.  
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.  
10  
 
Installation checklist.  
Water Heater Location  
Close to area of heated water  
Provisions made to protect area  
demand.  
from water damage.  
Indoors and protected from  
Sufficient room to service heater.  
freezing temperatures.  
Area free of flammable vapors.  
Sufficient fresh air supply for  
proper operation of water heater.  
Water Supply  
Water heater completely filled  
with water.  
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.  
Discharge line protected from  
freezing.  
Wiring  
Power supply voltage agrees with  
water heater rating plate.  
Branch circuit wire and fusing or  
circuit breaker of proper size.  
Electrical connections tight and  
unit properly grounded.  
11  
 
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  
If there is any difficulty in  
Do turn off power to water heater  
if it has been subjected to over  
heating, fire, flood, physical  
damage.  
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  
unless it is filled with water.  
Do Not turn on water heater if  
cold water supply shut-off valve  
is closed.  
Safety Controls  
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  
To reset the temperature limiting  
control:  
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  
Turn off the power to the water  
heater.  
Remove the jacket access panel(s)  
and insulation.  
excessively high, the temperature  
limiting control (ECO) breaks the power  
circuit to the heating element. Once the  
control opens, it must be reset manually.  
The thermostat protective cover  
should not be removed.  
service again.  
Press the red RESET button.  
Replace the insulation and jacket  
access panel(s) before turning on  
the power to 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.  
Do not operate the water heater again  
until it has been thoroughly checked by  
qualified service personnel.  
12  
 
Water Temperature Setting  
The temperature of the water in the  
Water temperatures above 125°F  
!
DANGER: Hotter water  
water heater can be regulated by setting can cause severe burns or death from  
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.  
the temperature dial of the adjustable  
scalding. Be sure to read and follow the  
surface mounted thermostat(s) located warnings outlined in this manual and on  
behind the jacket access panel(s).  
the label located on the water heater  
near the gas control (thermostat).  
Dual element heaters have two  
thermostats.  
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  
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.  
information.  
The chart below may be used as a guide  
in determining the proper water  
temperature for your home.  
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.  
Time/Temperature Relationship in Scalds  
Water Temperature  
Time To Produce a Serious Burn  
120°F  
125°F  
More than 5 minutes  
11/2 to 2 minutes  
130°F  
135°F  
140°F  
145°F  
150°F  
About 30 seconds  
About 10 seconds  
Less than 5 seconds  
Less than 3 seconds  
About 11/2 seconds  
About 1 second  
155°F  
Table courtesy of Shriners Burn Institute  
If adjustment is necessary…  
Turn off the power to the water  
heater.  
Using a small screwdriver, set the  
thermostat(s) dial pointer(s) to  
the desired temperature.  
Reset button  
Remove the jacket access panel(s)  
and insulation exposing the  
thermostat(s).  
Thermostat  
dial pointer  
Replace the insulation and jacket  
access panel(s). Turn on the power  
to the water heater.  
150°F  
(66°C)  
90°F  
(32°C)  
(52°C)  
125°F  
The thermostat protective cover(s)  
should not be removed.  
TURN OFF  
POWER  
BEFORE  
SERVICING  
Thermostat  
protective  
cover  
Type 59T thermostat and  
protective cover.  
13  
 
Care and cleaning of the water heater.  
Draining the Water Heater  
In order to drain the water heater, turn  
CAUTION: Shut off power to the  
water heater before draining water.  
off the cold water supply. Open a hot  
water faucet or lift the handle on the  
relief valve to admit air to the tank.  
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.  
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  
If the water heater is to remain idle for an After a long shut-down period, the water  
NOTICE: Refer to the  
Hydrogen Gas Caution in  
the Operating Instructions.  
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.  
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.  
The water heater and piping should be  
drained if they might be subjected to  
freezing temperatures.  
Routine Preventative Maintenance  
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  
Properly maintained, your water heater  
will provide years of dependable trouble-  
free service.  
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.  
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.  
released into a suitable  
drain to prevent injury or  
property damage.  
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.  
!
DANGER: Hotter water  
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.  
increases the potential for  
Hot Water Scalds.  
The anode rod should be removed from the  
water heater’s tank annually for inspection  
and replaced when more than 6of core  
wire is exposed at either end of the rod.  
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.  
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.  
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.  
14  
 
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  
What To Do  
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.  
Contact the local electric utility.  
Electric service to your  
home may be interrupted.  
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.  
Water is too hot  
The thermostat  
is set too high.  
See the Temperature regulation of the water heater  
section of this manual.  
CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating elements or other  
safety devices. Refer repairs to qualified service personnel.  
15  
 
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.  
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.  
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.  
21/2 Gallon Models  
Relief valve  
Cavity insulation  
Thermostat  
protective cover  
Thermostat  
T
E
E
S
E
R
R
S
E
T
0 9  
0 4 1  
0 0 1  
0 1 1  
0 3 1  
0 2 1  
C
S
I
D
-
O
-
M
R
E
H
T
Electrical cord  
set (120 VAC  
models only)  
F F  
O
N R U  
O
P
R
E
T
W
E
G
R
F O E B  
V
I N  
I C  
R
E S  
Jacket  
access  
panel  
Heating  
element  
gasket  
Drain valve  
shroud  
Drain valve  
Thermostat  
bracket  
Heating  
element  
6, 10 and 20 Gallon Models  
Anode rod  
Shroud  
Snap  
bushing  
Thermostat  
Thermostat protective cover  
Cavity insulation  
Relief  
valve  
S
E
T
E
E
R
R
T
E
S
90  
140  
100  
130  
110  
120  
C
M
-
D
I
S
T
H
E
R
-
O
Jacket  
access  
panel  
F
OF  
RN  
TU  
E
R
O
W
E
P
R
FO  
BE IN  
IC  
G
RV  
SE  
Nipple,  
hot outlet  
Shroud  
Thermostat  
bracket  
Heating element  
Nipple,  
cold inlet  
16  
Heating element gasket  
 
Wiring diagrams.  
Wiring Diagrams for Type–59T Therm-o-disc Thermostats  
TO PROPERLY  
GROUNDED  
H
G
N
RECEPTACLE ON  
BRANCH CIRCUIT  
1
2
1
THERMOSTAT  
& HIGH TEMP.  
2
HEATING  
ELEMENT  
120 V Plug Connected cord set ONLY  
BRANCH CIRCUIT  
TO ELECTRICAL  
DISTRIBUTION PANEL  
G*  
H
N
1
2
1
THERMOSTAT  
& HIGH TEMP.  
LIMIT (ECO)  
2
HEATING  
ELEMENT  
120 V Field Connected ONLY  
17  
 
Notes.  
18  
 
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:  
Complete and mail  
this Consumer  
Product Ownership  
Registration today.  
After mailing the  
Read your Owner's  
Manual carefully.  
It will help you  
operate your new  
appliance properly.  
registration below,  
store this document  
in a safe place. It  
contains information  
you will need should  
you require service.  
3
1 2  
Model Number  
Serial Number  
If you require service, call 800-431-1549.  
Cut here  
Consumer Product Ownership Registration  
Water Heater  
Model Number  
Serial Number  
Mr. Ms. Mrs. Miss ●  
First  
Name  
Last  
Name  
Street  
Address  
Apt. #  
City  
Zip  
Code  
State  
Date Placed  
In Use  
Month  
Day  
Year  
Phone  
Number  
_
_
NOTICE: Failure to complete and return this card does not diminish your limited warranty rights.  
20  
 

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