Kenmore Power Miser 12 153.320493 HT - Manual (Page 9)

installation Instructions (contad)
Temperature-Pressure
Relief Valve
A WARNING
At the time of manufacture this water heater was provided with
a combination temperature-pressures relief valve certified by a
nationally recognized testing laboratory that maintains 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 Z2I.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 Devices for Hot Water Supply Systems,
ANSI Z2I.22 by a nationally recognized testing laboratory that
maintains peric^ic 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 (ISO IbsJsq. 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 1000 x 3415
equal BTU/Hr. rate.)
Your local jurisdictional authority, while mandating the use of a
temperature-pressure relief valve complying with ANSI Z2I.22
and ASME, may require a valve model different from the one fur­
nished 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 pre­
scribed temperature-pressure relief valve installed in the desig­
nated opening in the water heater in place of the factory fur­
nished vialve.
For safe operation of the water heater, the relief valve must not
be removed from itis designated 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 dis­
charge 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 30 feet, or use of more than four 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 property damage, the relief valve must be
allowed to discharge water in quantities should circumstances
demand. If the discharge pipe is not connected 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
i pipe.
' * Must terminate at an adequate drain.
I * Must not have any valve between the relief valve and tank.
A WARNING
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 drain­
ing instructions, and replace the temperature-pressure
relief valve with a new one.
WARNING “RELIEF VALVE OPENING
This water heater is provided with a combination Temperature-Pressure Relief Valve listed as complying with
the standard tor Reliel Valves and Autorrialic Sa$ Shutott Devicestor Hot Water Sup^ Systems. ANS^L^
and the code raqulnaments of ASME-
Yojr localJurisdichonal authority, while mandating the use of a Temperature-Pressure Reief Valve comptying
with ANS ¿21
.22 and ASME, may require a valve rrodel different from the one lumished with the water heater.
Compliance with such locai requirements must he satisfied by the Installer or erxj user ot the water heater with
a locally prescribed Temperature-Pressure Relief Valve installed in the designated opertir^g in the water
heater.
T&P RELIEF
VALVE PROBE
MUST EXTEND
INTO TANK
• If a short shank {less than 2 ‘] lempefalure-pressure
(as shown), a nipple and coupling must be used-
• If a lor^g shank (2' or loriger) is to be installed, do not
TEMPERATURE-
PRESSURE
RELIEF VALVE
reliet valve is to be installed
s the l^ípple and coi^ürig.
Install Temperatue-Pressure protective equipment required by local codes, but not less than a combina­
tion Temperature-Pressure Reiief Valve certified as meeting the requirements lor Relief Valves and
Automatic Gas Shutoff Devices for Hoi-Water Supply Systems, ANS Z21.22 by a naiionaHy recognized test­
ing laboratory that maintains periodic irispection cl production of listed equipment or materials The vahre
must be ofiented, provided Mih tubing, or otherwise installed so that dischai^ can exit only wHhin 6 inches
above, or at any distance below №e structural floor, and canr>ot contact any live electrical pah.
For sale operatioo of the water heater, the Relief Vaive must not be removed or pk)gged.
See rnanuai heading - Temperature-Pressure Relief Valve for installation and maintenance of Reliel
Valve, discftarge pipe arvd other safety precautions.