Sears 153.335551, 153.3356 Temperature-PressureRelief Valve, Discharge capacity of the valve

Temperature-PressureRelief Valve

WARNING

At the time of manufacture this water heater was provided with a combination temperature-pressures relief 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 eoidon of ANSI Z21.22 and the code requtrements 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 laborato_ 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 (150 Ibs./sq. in.) and a discharge cai_city not lessthan the water heater input rate as shown on the model rating plate. (Electric heaters - watts divided by 1000 x 3415 equa BTU/Hr. rate.)

Your local jurisdictional authority, while mandating the use of a temperature-pressure relief valve complyingwith ANSI

Z21.22 and ASME, may require a valve moc'leld_erent 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

€leslgnated 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 fittin_of the water heater designated for the relief valve. Position t_e valve downward and provide tubing sothat 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. Excessivelength, over 15 feet_ or use of more than two elbows can cause restriction and reduce the

discharge capacity of the valve.

No 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 oroperty damage, the relief

valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pnpe is not connected to a drain or other suitable means, t-hewater flow may cause property damage.

The Discharlze Pipe:._

'--Must not Ee smaller in size than the outlet pipe size of the

valve, or have any reducing couplingsor other restriction.

---Must not be plumedor blocked.

_ust be of mate_]'allisted for hot water distribution.

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

". ...

._-_!! tner_nl_;va_eaatyanavd;bqe_edr_e relief valve and tan k.

WARNING

The temperature-pressure relief valve must be manual-

ly operated at least once a year. Caution should be taken to ensure that (1) no one is in front of or around

the outlet of the temperature-pressure relief valve dis- charge 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 com- pletely reset and continues to release water, immedi- ately closethe cold water inlet to the water heater, fol-

low the draining instructions, and replace the tempera- ture-pressure relief valve with a new one.

..,_q
HOT	SHUTOFF COLD
	VALVE

JRE-PRESSURE

RELIEFVALVE

(Do not cap or plug)

[]

6" AIR GAP

FLOOR DRAIN

RELIEF VALVE OPENING

ATTHETIMEOF MANUFACTURE,THISWATERHEATERWASPROVIDED WITHACOMBINATIONTEMPERATURE-PRESSURERELIEFVALVELISTED

ASCOMPLYINGWITHTHESTANDARDFORRELIEFVALVESANDAUTO-

MATICGASSHUTOFFDEVICESFORHOTWATERSUPPLYSYSTEMS, ANSI Z21.22.FOR SAFEOPERATIONOF THE WATERHEATER,THE RELIEFVALVEMUSTNOTBEREMOVEDFROMITSDESIGNATEDPOINT OF INSTALLATIONOR PLUGGED.

YOURLOCALJURISDICTIONALAUTHORITY,WHILEMANDATINGTHEUSE OF A TEMPERATURE-PRESSURERELIEFVALVECOMPLYINGWITHANSI

Z21.22ANDASME,MAYREQUIREA VALVEMODELDIFFERENTFROM THEONEFURNISHEDWITHTHEWATERHEATER.

COMPLIANCEWITHSUCHLOCALREQUIREMENTSMUSTBE SATISFIED

BY THE INSTALLEROR END USEROF THE WATERHEATERWITHA LOCALLYPRESCRIBEDTEMPERATURE-PRESSURERELIEFVALVE INSTALLEDTHEDESIGNATEDOPENINGIN THEWATERHEATER.

SEEMANUALHEADING--"TEMPERATURE-PRESSURERELIEFVALVES"

FORINSTALLATIONANDMAINTENANCEOF RELIEFVALVE,DISCHARGE LINEANDOTHERSAFETYPRECAUTIONS.

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