Temperature-Pressure Relief Valve - Kenmore ECONOMIZER 153.332318 Owner's Manual

Installation Instructions (cont'd)
Temperature.Pressure Relief Valve
&WARNING
At the time of manufacture this water heater was provided i
with a combinationtemperature-pressuresrelief valvecertlf_ed
by a nationally recognized testing laboratory that maintains
periodic inspectionof production of listedequipment or mate-
rials, as meeting the requirements for Relief Valves and
Automatic Gas ShutoffDevicesfor Hot Water SupplySystems,
and the latest edition of ANSI Z21.22 and the code require.
ments of ASME, If replaced, the valve must meet the require-
ments of localcodes,but not lessthan a combinationtempera-
ture and pressurerelief valve certified as meeting the require-
ments for ReliefValvesandAutomatic Gas Shutoff Devicesfor
Hot Water Supply Systems, ANSI 7.21.22bya nationally recog-
nized testinglaboratory that maintains periodic inspectionof
productionof listedequipmentor materials.
The valve must be marked with a maximum set pressurenot
to exceed the marked hydrostatic working pressure of the
water heater (150 Ibsdsq. i n.) and a discharge capacity not less
!than the water heeter input rate as shownon the model rating
plate. (Electric heaters - watts divided by 1000 x 3415 equal
BTU/Hr. rate.)
Yourlocaljurisdictional a uthority,while mandatingthe useof a
temperature-pressurerelief valve complyingwith ANSI Z21.22
and ASME, may require a valve model different from the one
furnishedwith the water heater.
Compliancewith suchlocal requirements must be satisfiedby
the installeror enduser of the water heater with a locallypre-
scribedtemperature-pressurerelief valve instaJled in the desig-
nated opening in the water heater in place of the factory fur-
nishedvalve.
For safeoperationof the water heater,the relief valve must not
be removed from it'sdesignatedopeningor plugged.
The temperature-pressure relief valve must be installeddirectly
into the fittingof the water heater designated for the relief valve.
Position the valve downwardand providetubingsothat any dis-
chargewill exit only within 6 inchesabove, or at any distance
belowthe structural floor. Be certain that no contact is made
with any liveelectricalpart. The disthargeopeningmust not be
blockedor reduced in size underany circumstances. E xcessive
length,over 30 fe_, or use of more than four elbewscan cause
restriction and reduce the discharge capacity of the valve. I
No valveor other obstructionisto be placedbetweenthe relief
valveand the tank. Do not connecttubing directlyto discharge
drainunless a 6"air gapisprovided.Topreventbodilyinjury,haz-
ard to life, or property damage,the relief valvemust be allowed
to discharge water in quantitiesshouldcircumstances d emand.If
the discharge pipe is not connectedto a drain or other suitable
means,the water flow maycausepropertydamage.
The DischargePipe:
• Must not be smaller in size than the outlet pipe size of the
valve,or haveanyreducing couplings or other restrictions.
Must not be pluggedor blocked.
Must be of material listedfor hot water distribution.
Must be installedso as to allow complete drainageof both
the temperature-pressure relief valve, and the discharge
pipe.
Must terminate at an adequatedrain.
Mustnot haveany valvebetween the relief vaJve and tank_
• , WARNING
The temperature-pressure relief valve must be manually
operated at least once a year. Caution should be taken to
ensurethat (I) no one is in front of or around the outlet of
the temperature-pressure relief valve dischargeline, and (2)
the water manually discharged will not cause any bodily
injury or property damage because the water may be
extremely hot.
If after manua/Iy operating the valve, it fails to completely
reset and continuesto release water, immediately closethe
cold water inlet to the water heater, follow the draining
instructions, and replace the temperature-pressure relief
valve with a new one.
HOT
VALVE
FLOOR DRAIN
COLD
RELIEF VALVE
(Do not cap or plug)
6" AIR GAP
RELIEFVALVE OPENING
At the time of maflufacture, t hiswater heater was providedwith a combination tem-
perature-pressure _ -.IJe f valvelisted ascomping with tee standard for relid va_es_d
automaticgas shut-offdevicesfor hot water supp_ sys_ms,ANSt Z2t.22. For safe
operadonof the water heater,the relief vaFve must not be removed from its designated
ffoin¢of installation or fflugged.
Yourlocal urisdictionaf authori_ while mandating the use of a temperature-pressure
relief valvecomplying with ANSI 7.21.22andASNF. n_y r_uire a vave mode dfferent
from the onefurnished with the waterheart
Comffliance w_h suchlocal_-_uirernen_ rn_st be satisEedby the installeror enduser
of the water heaterwith a locally prescribed temperature-pressure re{iefv_Ne installed
in the designatedopening in the water heate_
Seemanualheading-_Temperature-Pressure Reli_ Valves"for installation andmainte-
nance of relief valve, d ischari_e line,and other safety precautions.
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