Maytag HN51240X, HN41240X Temperature-PressureRelief Valve, Instructions for Installation contd

Instructions for Installation (cont'd)

Temperature-Pressure Relief Valve

AWARNING	&WARNING
At the time of manufacture this water heater was provid-	The temperature-pressure relief valve must be manu-
ed with a combination temperature-pressuresrelief valve	ally operated at least once a year. Caution should be

certified by a nationally recognizedtesting laboratory that maintains periodic inspection of production of listed

equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devicesfor 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 less than a combination temperature and pressure

relief valve certified as meeting the requirements for

Relief Valves and Automatic Gas Shutoff Devicesfor Hot Water Supply Systems,ANSI Z21.22 by a nationally recog-

nized testing laboratory that maintains periodicinspection of production of listed equipment or materials.

The valve must be marked with a maximum set pressure not to exceedthe marked hydrostaticworking pressureof the water heater (150 Ibs./sq. in.) and a dischargecapacity

not lessthan the water heater input rate as shown on the

1000 x 3415 equal BTU/Hr.rate.)

Your local jurisdictional authority, while mandating the use of a temperature-pressurerelief valve complyingwith

ANSI Z21.22 and ASME, may require a valve model differ- ent from the one furnished with the water heater. model rating plate. (Electric heaters - watts divided by Compliancewith suchlocal requirementsmust 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 factory 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 designatedfor the relief valve. Positionthe valve downward and provide tubing so that any dischargewill 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 circumstancesExcessivelength,.

over 30 feet, or use of more than four elbows can cause restrictionand reducethe dischargecapacity of the valve.

No valve or other obstruction isto be placed between the relief valve and the tank. Do not connecttubing directly to dischargedrain unlessa 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 circumstancesdemand. If the dischargepipe is not connected to a drain or other suitable means, the water

flow may causeproperty damage,

The DischargePipe:

•Must not he 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-pressurerelief valve, and the dis-

chargepipe.

•Must terminate at an adequate drain.

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

taken to ensure that (1) no one is in front of or around the outlet of the temperature-pressure relief

valve discharge line, and (2) the water manually dis- charged 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-

pletety reset and continues to release water, immedi- ately close the cold water inlet to the water heater,

follow the draining instructions, and replace the

temperature-pressurerelief valve with a new one.

		SHUTOFF
	_	_r_VALVE
,	i<_	=__
HOT			COLD
'_ _			'_
	-'
	_	_	TEMPERATURE-
		\	PRESSURE
			RELIEFVALVE
		=	DISCHARGEPIPE
			(Do not capor plug)

_ __/ __6AIRGAP

_ ''m

-- O FLOORDRAIN

RELIEF VALVE OPENING

Atthetimeof manufacturethiswat, erheatewras provided withacombination

temperature-prersesurliefvealvlistedascomplyiwithhestandardngforrelief valveandas utomatgassic hut-offdevicesfor hotwatesr upplsystemsANS, I

r fromitsde atpeodinoft installationrplugged.

zemoved21.22F. rsafeopesignrat onof thewaterheaterth, ereliefvalvemustnot be

Yourlocalurisdictionauthl ority, while mandating theuseof a temperature- pressurelievaf lvecomplyinwithg ANSIZ21.22andASMEm,ayrequireavalve modedilfferenfrtomtheonefurnishewithhdewaterheater.

Complianwithsceuchlocarequirelmemntustbesatisfiedbytheinstalleror

enduserof thewaterheatewirtha locallpyrescribtedmperature-pressure reliefvalveinstalledthedesignatedopeninginthewaterheater.

Seemanualheading-"Temperature-PressureRelieVfalvesforinstallati"ando

maintenanocefreliefvalvedischa, rlingeeandeth,esrafetyprecautions, i

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