State P6 40 20T4 W - Manual (Page 14)

Periodic Maintenance
Temperature-Pressure Relief
Valve Operation
The temperature-pressure relief valve must be manually
operated at least once a year.
temperature-pressure relief
valve
DISCHARGE
PIPE
Failure to install and maintain a new properly listed tem-
perature-pressure relief valve will release the manufacturer
from any claim which might result from excessive temper-
ature or pressure.
Draining
The water heater should be drained if being shut down
during freezing temperatures. Also periodic draining and
cleaning of sediment from the tank may be necessary.
1. Before beginning turn “OFF” the electric power supply
to the water heater.
2. CLOSE the cold water inlet valve to the water heater.
3. OPEN a nearby hot water faucet and leave open to
allow for draining.
4. Connect a hose to the drain valve and terminate to an
adequate drain or outdoors.
5. OPEN the water heater drain valve to allow for tank
draining.
NOTE: If the water heater is going to be shut down and
drained for an extended period, the drain valve should
be left open with hose connected allowing water to
terminate to an adequate drain.
6. Close the drain valve.
7. Follow “Filling the Water Heater” instructions in the
“Installing the New Water Heater” section.
8. Turn “ON” power to the water heater.
14
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 out-
let of the temperature-pressure relief valve discharge
line, and (2) the water manually discharged will not
cause any property damage or bodily injury. The water
may be extremely hot.
If after manually operating the valve, it fails to com-
pletely reset and continues to release water, immediate-
ly close the cold water inlet to the water heater, follow
the draining instructions, and replace the temperature-
pressure relief valve with a new one.
WARNING
If the temperature-pressure relief valve on the appliance
weeps or discharges periodically, this may be due to
thermal expansion. The water heater may have a check
valve installed in the water line or a water meter with a
check valve. Consult a local plumbing contractor and/or
the local water utility for further information. Do not
plug the temperature-pressure relief valve.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater, make
sure the electrical supply to the water heater is turned
“off”. Failure to do this could result in DEATH, SERIOUS
BODILY INJURY, OR PROPERTY DAMAGE.