whl-035 Rev. 002 Rel. 002 Date 11.1.17
14
T&P Relief Valve Maintenance Instructions:
•
Annually:
Certain naturally occuring mineral deposits may
adhere to the valve, blocking waterways and rendering the
valve inoperative. The T&P Relief Valve lever must be operated
to ensure the waterways are clear. If waterways are clear, hot
water will discharge from the valve. Take precautions to avoid
personal injury and property damage from contact with hot
water. Before operating lever, check to see that a discharge
line is connected to the valve, directing the flow of hot water
from the valve to a proper place of disposal.
•
Replacement of the valve is required if no water flows when
the lever is operated. Turn the water heater off until the valve
is replaced.
•
If water flows from the valve, drain a few gallons from the tank
to ensure the water flows freely.
•
At least once every three years:
To ensure that the T&P
valve has not been affected by corrosive water conditions
and that the valve and discharge line have not been altered
or tampered with illegally, relief valves should be inspected,
and replaced, if necessary, by a licensed plumbing contractor
or qualified service technician.
Failure to comply with these guidelines could result in failure
of relief valve operation, and possibly result in substantial
property damage, severe personal injury, or death.
Figure 9 - Replacement Parts - Non-Simultaneous Operation
