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12

Customer Service

T

roubleshooting Tips

Care and Cleaning

Operating Instructions

Installation Instructions

Safety Instructions

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.

Do Not

turn on water heater if

cold water supply shut-off valve is
closed.

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.

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.

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.

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
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.

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.

Summary of Contents for AP12170-4

Page 1: ...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 indicat...

Page 2: ...ip or cancelled check here Proof of the original purchase date is needed to obtain service under the warranty IMPORTANT Fill out and return the Consumer Product Registration Card that is in the back o...

Page 3: ...e 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 D A N G E R HOT Water temperature o...

Page 4: ...rom Office of the State Architect 400 P Street Sacramento CA 95814 or you may call 916 324 5315 or ask a water heater dealer However applicable local codes shall govern installation For residential wa...

Page 5: ...d 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...

Page 6: ...ld water inlet line can cause what is referred to as a closed water system A cold water inlet line with no check valve or back flow prevention device is referred to as an open water system As water is...

Page 7: ...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 shou...

Page 8: ...jacket at the top front of the water heater An opening for 1 2 or 3 4 electrical fitting is provided for field wiring connections The voltage requirements and wattage load for the water heater are spe...

Page 9: ...ternal insulation blanket to this water heater pay careful attention to the following so as not to restrict the proper function and operation of the water heater Do not cover the temperature and press...

Page 10: ...opening of the T P Valve R E L I E F V A L V E COLD HOT Typical top connection arrangement Typical side connection arrangement Relief Valve Insulation Installation CAUTION Ensure the T P Valve openin...

Page 11: ...Provisions made to protect area from water damage Sufficient room to service heater Water Supply Water heater completely filled with water Air purged from water heater and piping Water connections tig...

Page 12: ...h 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 CAUTION The cause of the high temperature condition must be inve...

Page 13: ...n 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 conse...

Page 14: ...shorten the life of the glass lined tank and will exclude warranty coverage Care and cleaning of the water heater Draining the Water Heater CAUTION Shut off power to the water heater before draining w...

Page 15: ...connect switch if used are in the ON position The thermostat may See the Temperature regulation of the water heater be set set too low section of this manual Leaking or open hot Make sure all faucets...

Page 16: ...T attempt repair of electrical wiring thermostat s heating elements or other operating controls Refer repairs to qualified service personnel Relief valve Junction box cover Anode rod Hot outlet heat t...

Page 17: ...til it breaks away from the remainder of the cavity insert See illustration to the left Discard the crossbar It cannot and need not be replaced Replace the thermostat and or element as necessary Repla...

Page 18: ...X 4 L2 RED 1 3 2 UPPER THERMOSTAT HIGH TEMP LIMIT ECO UPPER HEATING ELEMENT BLUE YELLOW BLACK L1 G BRANCH CIRCUIT TO ELECTRICAL DISTRIBUTION PANEL 240 V JUNCTION BOX 4 L2 RED 1 3 1 2 BLACK RED BLACK L...

Page 19: ...19 Rheem Manufacturing Company Warranty Registration Department P O Box 34070 Louisville KY 40232 4070 Please place in envelope and mail to Cut here Cut here...

Page 20: ...Mr Ms Mrs Miss Street Address City State Date Placed In Use Month Day Year Zip Code Apt Last Name Phone Number _ _ Complete and mail this Consumer Product Ownership Registration today After mailing th...

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