Temperature-Pressure Relief Valve - Kenmore POWER MISER 153.327164 Owner's Manual

Installation Instructions (cont'd)
Temperature-Pressure
Relief Valve
AWARNING
At the time of manufacture this water heater was provided
with a combinationtemperature-pressures relief valve cer-
tified by a nationally recognized testing laboratory that
maintains periodic inspectionof productionof listed equip-
ment or materials, as meeting the requirements for Relief
Valvesand Automatic Gas Shutoff Devicesfor Hot Water
SupplySystems,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 ReliefValvesand
Automatic Gas Shutoff Devices for Hot Water Supply
Systems, ANSI Z21.22 by a nationally recognized testing
laboratory that maintains periodic inspectionof production
of listed equipment or materials.
The valve must be marked with a maximum set pressure
not to exceed the marked hydrostaticworking pressureof
the water heater (150 Ibs./sq.in.) and a dischargecapacity
not lessthan the water heater input rate as shownon the
model rating plate. (Electric heaters - watts divided by
1000x 3415 equal BTU/Hr. rate.)
Your localjurisdictional authority, while mandatingthe use
of a temperature-pressure relief valve complying with
ANSI Z21.22 and ASME, may require a valve model differ-
ent from the one furnishedwith the water heater.
Compliance with such local requirements must be satisfied
_)ythe installer or end user of the water heater with a
locally prescribed temperature-pressure relief valve
installedin the designatedopening in the water heater in
place of the factory furnishedvalve.
For safe operation of the water heater, the relief valve
must not be removed from it's designated 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 distancebelow the structural floor. Be cer-
tein that no contact is made with any llve electrical part.
The dischargeopening must not be blocked or reduced in
size under any circumstances. Excessivelength, over 30
feet, or use of more than four elbowscan causerestriction
and reduce the dischargecapacityof the valve.
No valve or other obstruction is to be placed between the
relief valve and the tank. Do not connect tubing 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
shouldcircumstancesdemand. If the dischargepipe is not
connected to a drain or other suitable means, the water
flow may causeproperty damage.
The DischargePipe:
Must not be smaller in size than the outlet pipe size of
the valve, or have any reducing couplings or other
restriction.
Must not be pluggedor blocked.
Must be of material listedfor hot water distribution.
Must be installed so as to allow complete drainage of
both the temperature-pressure relief valve, and the dis-
charge pipe.
Must terminate at an adequatedrain.
Must not have any valve between the relief valve and
tank.
_,WARNING
The temperature-pressure relief valve must be manually
operated at least once a year. Caution shouldbe 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 dischargedwill not causeany
bodily injury or property damage becausethe 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 drain-
ing instructions, and replace the temperature-pressure
relief valvewith a new one.
HOT
HOT
COLD
F_E-
PRESSURE
RELIEF VALVE
PIPE
(Do not cap or plug)
6" AIR GAP
FLOOR IN
T&P RELIEF
VALVE PROBE
TEMPERATURE-
PRESSURE
RELIEF VALVE
T&P
SHANK
NIPPLE 'LENGTH
• if a shorl shank (less than 2") temperature-pressulete_f valve is to be installed
(as shown), a nippleand couplin 9 must be used¸
• Ffa longshank (2' or longer)is to be installed,do not use1henippleand coupling¸
lnstam Teroperature-Pr_ssure protective _quipmentrequired by local c odes, butnot less Ihan a r_na-
t_onTemperature-Pressure Relief Valve cettitiedas meeting the requirementsforReliefVetves and
AulomaticGas Shutoff D ev_.es forHol-Water S uppry Systems, ANS Z2122 bya natw_nalty r e(_gn_edlesl-
ing labo_alOr/t_l maintainspeded_wv, p ecti_ of prod_ct_nof listedequigrnent or materials. T he val_
mustbe onented, p TOVi_d withlub_ng, oro_hen_me m et a iledsothatdr,ct_r;e canexil orgywtlhin 6 red'as
above,or at anydslanCebelowlhe structural Ik_or, andcan,w_t cOnlacl anylive e_,cl_a! pall"
For_le operatK, n ofIhewaterheater¸theReEf Vave mustnotbe removed orplugged¸ f
S_BrP_nL_I_leading. "Temperat U fe. p[assureRelief Valve"for inst a _al_On and mai_lenaflce of Relie
Va)ve,diSCharge ppe andothersafetyprecautions¸