Maytag HR652SJRT Water Heater User Manual


 
COLD
HOT
12
FLOOR DRAIN
TEMPERATURE-
PRESSURE
RELIEF VALVE
6” AIR GAP
DISCHARGE PIPE
(Do not cap or plug)
CONDUIT
HOT
COLD
Temperature-Pressure Relief Valve
Instructions for Installation (cont’d)
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 current
edition of 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 meeting the requirements for Relief Valves
and Automatic Gas Shutoff Devices for Hot Water Supply
Systems, ANSI Z21.22 • CSA 4.4 by a nationally recognized
testing laboratory that maintains periodic 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 lbs./sq. 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 3412 equal BTU/Hr.
rate.)
Your local jurisdictional authority, while mandating the use of a
temperature-pressure relief valve complying with ANSI Z21.22 •
CSA 4.4 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 prescribed
temperature-pressure relief valve installed in the designated
opening in the water heater in place of the factory furnished
valve.
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 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. 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 pipe.
Must terminate at an adequate drain.
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 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
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.