Sears 153.33651I, T53, 33631I Installation in ructions, Temperature-Pressure Relief Valve

installation in: :ructions

Temperature-Pressure Relief 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 edition of ANSI Z21.22 and the code

requirements 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 laboratory that maintains

_eriodic 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 capacity not lessthan 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 Z21.22 and ASME, may require a valve model different 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 )rescribed temperature-pressure relief valve installed in the

designated 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 fitting of the water heater designated for the relief valve. Position the valve downward and provide tubing

so that 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 30 feet, or use of more than four elbows can cause restriction and reduce the dis-

charge capacity of the valve.

No valve or other obstruction is to be placed between the relief valve and the tank. Do nut 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 connect- ed 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 pipe.

,Must terminate at an adequate drain.

,Must not have any valve between the retlef vane and tank.

(cont'd)

AWARNING

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 draining

instructions, and replace the temperature-pressure relief valve with a new one.

HOT	COLD
	SHUTOFF
	VALVE

HOT COLD

F-- T E _II_s_RUER E-

RELIEF VALVE

_ DISCHARGE PiPE

(Do no_cap or plug)

6" AIR GAP

FLOOR DP,_IN_ f

RELIEFVALVEOPENING

At the time ot manufacture, this water heater was provided with a combination tem- perature-pressure relief vaIvelisted as complyingwitl_ the standard for relief valves and automatic gas shut-off devices for hot water supply syssems, ANSI Z2L22. For safe

operationof thewaterheater,thereliefvalvemustnotberemovedfromitsdesignated

point of installation or plugged.

Yourlocaljurisdictionalauthority,while mandatingthe use ofa temperature-pressure

relief valve complying with ANSI Z2 I_22 and ASME, may require avalve model different from the one furnished with the water heate_

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 insmlle_ in the designated opening in the water heater.

Seemanual heading -"Temperature-Pressure Relief Vafves'_ for installation and mainte- I

nanceof relief valve,discharge line, and other safetyprecautions, I

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