Kenmore 153.337002, 153.337072 Temperature-PressureRelief Valve, Relief Valve Opening, Awarning

Installation Instructions (cont'd)

Temperature-Pressure Relief Valve

AWARNING

At the time of manufacture this water heater was provided

with a combination temperature-pressuresrelief valve certi- fied by a nationally recognized testing laboratory that main. tains periodic inspection of production of listed equipment or materials, as meeting the requirements for Relief Valves and

Automatic Gas Shutoff Devices for Hot Water Supply Systems, and the latest edition of ANSI Z21.22 and the code requirements of ASME. If replaced, the valve must meet the requirements of local codes, but not lessthan a combination temperature and pressure relief valve certified as meeting

the requirements for Relief Valves and Automatic Gas

Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22 by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials.

The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater 050 Ibs./sq. in.) and a discharge capacity not less than the water heater input rate as shown on the model rating plate. (Electric heaters_, watts divided by I000 x 3415

equal BTU/Hr. rate.)

Your local jurisdictional authority, while mandating the use of

a temperature-pressure relief valve complying with ANSI Z21.22 and ASME, may require a valve model different from the one furnished with the water heater.

Compliance with such local requirements must be satisfied by the installer or end user of the water heater with a locally prescribed temperature-pressure relief valve installed in the designated opening in the water heater in place of the facto- ry furnished valve.

For safe operation of the water heater, the relief valve must not be removed from it'sdesignated opening or plugged.

The temperature-pressure relief valve must be installed directly into the fitting of the water heater designated for the relief valve. Position the valve downward and provide tubing

so that any discharge will exit only within 6 inches above, or at any distance below the structural floor. Be certain that no

contact is made with any live electrical part. The discharge opening must not be blocked or reduced in size under any

circumstances. Excessive length, over 15 feet, or use of more than two elbows can cause restriction and reduce the dis-

charge capacity of the valve.

_o valve or other obstruction is to be placed between the relief valve and the tank. Do not connect tubing directly to discharge drain unless a 6" air gap is provided. To prevent bodily injury, hazard to life, or property damage, the relief valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pipe is not connect- ed to a drain or other suitable means, the water flow may cause property damage.

The Discharge Pipe:

Must not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions.

Must not be plugged or blocked.

Must be of material listed for hot water distribution.

Must be installed so as to allow complete drainage of both the temperature-pressure relief valve, and the discharge pipe.

Must terminate at an adequate drain.

Must not have any valve between the relief valve and tank.

AWARNING

The temperature-pressure relief valve must be manually operated at least once a year. Caution should be taken to ensure that (I) no one is in front of or around the outlet of the temperature-pressure relief valve discharge line, and (2) the water manually discharged will not cause any bodily

injury or property damage because the water may be extremely hot.

If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater, follow the draining instructions, and replace the temperature-pressure relief valve with a new one.

AWARNING

If a water heater is installed in conjunction with a sep- arate storage vessel, the storage vessel must also be

equipped with a temperature-pressure relief valve complying with the Standard for Relief Valves and Hot

Water Supply Systems, ANSI Z21.22. The hourly

rated temperature steam BTU discharge capacity of

the temperature-pressure relief valve(s) shall not be

less than the combined BTU input of the water heater(s) supplying water to the storage vessel(s).

HOTCOLD

SHUTOFF

VALVE

PRESSURE

RELIEF VALVE

DISCHARGE PIPE (Do not cap or plug)

RELIEF VALVE OPENING

At the time of manufacture, this water heater was provided with a combinationtem- perature-pressure relief valve listed as complying with the standard for relief valves and automatic gas shut-off devices for hot water supply systems,ANSI Z21,22. For safeoperarJon of the water heater, the relief valvemust not be removed from its des- ignatedpoint of installationor plugged.

Your local jurisdictional authorit7. while mandatingthe use of a temperauJre-pressure relief valve complyingwith ANSI Z21.22 and ASHE, may require a valve model differ- ent from the one furnished with the water heater

Compliance with such local requirements must be satisfiedby the installer or end user of the water heater with a Locagy prescribed temperature-pressure relief valve installedin the designatedopening in the water heater

See manual heading-"Temperature-Pressure Relief Valves"for installationand mainte- nance of relief valve,dischargeline, and other sefeL7 precautions.

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