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Page 8
Temperatures and pressure relief valve:
Caution : Install the Temperature/Pressure Relief Valve supplied with the water heater!
Install a discharge pipe from the temperature/pressure relief valve terminating at a sink or drain. Do not
cap or plug the end of the discharge pipe. The discharge pipe must be unobstructed and full sized.
The T/P valve is certied by a nationally recognized test lab that maintains periodic inspections of the listed
equipment and meets the requirements for relief valves and automatic shut off devices for hot water supply
systems ANSI 121.22-1979.
The T/P valve is marked with a maximum pressure, which does not exceed the maximum working
pressure of the water heater (150 PSI).
Install the T/P valve into the threaded opening at the top of the water heater using heavy duty Teon tape.
Do not over tighten! Orient the discharge tubing so that any discharge from the valve will exit within 6
inches above, or at any distance below the structural oor, and cannot contact any live electrical part.
T/P Valve Discharge pipe:
1. Must not be smaller in diameter than the outlet diameter of the valve, or have any reducing
couplings.
2. Must not be plugged or blocked.
3. Must be made of suitable material for hot water.
4. Must not be over 15’ in length.
5. Must not have more than two elbows.
6. Must terminate at an adequate drain.
7. Must not have a shut off valve between relief valve and tank or relief valve and termination of
discharge.
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