Kenmore 153.586420 Скачать руководство пользователя страница 11

Страница: 11 / 24

Temperature-Pressure Relief Valve

Explosion Hazard

7HPSHUDWXUHSUHVVXUHUHOLHI

YDOYHPXVWFRPSO\ZLWK$16,
=&6$DQG$60(
FRGH

3URSHUO\VL]HGWHPSHUDWXUH

SUHVVXUHUHOLHIYDOYHPXVWEH
LQVWDOOHGLQRSHQLQJSURYLGHG

'RQRWSOXJEORFNRUFDSWKH

GLVFKDUJHOLQH

)DLOXUHWRIROORZWKLVZDUQLQJ

FDQUHVXOWLQH[FHVVLYHWDQN
SUHVVXUHVHULRXVLQMXU\RU
GHDWK

This heater is provided with a properly certified combination
temperature - pressure relief valve by the manufacturer.
The valve is certified by a nationally recognized testing laboratory

that maintains periodic inspection of production of listed

equipment of materials as meeting the requirements for Relief

Valves for Hot Water Supply Systems, ANSI Z21.22 • CSA 4.4,

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 indicated in the above paragraph.
The valve must be marked with a maximum set pressure not to

exceed the marked hydrostatic working pressure of the water

heater (150 psi = 1,035 kPa) and a discharge capacity not less

than the water heater input rate as shown on the model rating

plate. (For electric heaters, watts x 3.412 equals Btu/hr input

rate). For safe operation of the water heater, the relief valve

must not be removed from its designated opening nor plugged.
The temperature-pressure relief valve must be installed directly

into the fitting of the water heater designed for the relief valve.

Position the valve downward and provide tubing so that any

discharge will exit only within 6 inches (153 mm) 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 (9.14 m), 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 inch 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 pipe.

• Must terminate a maximum of six inches above a floor drain

or external to the building. In cold climates, it is recommended

that the discharge pipe be terminated at an adequate drain

inside the building.

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

The temperature-pressure relief valve must be manually operated

at least once a year. Caution should be 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

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