State GS6 75 URRBS - Manual (Page 21)

21
TEMPERATURE-PRESSURE
RELIEF VALVE OPERATION
The temperature-pressure relief valve must be manually operated
at least once a year.
When checking the temperature-pressure relief valve operation,
make sure that (1) no one is in front of or around the outlet of the
temperature-pressure relief valve discharge line, and (2) that the
water discharge will not cause any property damage, as the water
may be extremely hot, see Figure 20
FIGURE 20
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.
If the temperature-pressure relief valve on the appliance weeps
or discharges periodically, this may be due to thermal expansion.
You may have a check valve installed in the water line or a water
meter with a check valve. Consult your local water supplier or
service agency for further information. Do not plug the temperature-
pressure relief valve.
DRAINING AND FLUSHING
It is recommended that the tank be drained and fl ushed every 6
months to remove sediment which may build up during operation. The
water heater should be drained if being shut down during freezing
temperatures. To drain the tank, perform the following steps:
1. Turn off the gas to the water heater at the manual gas shut-off
valve.
2. Open a nearby hot water faucet until the water is no longer hot.
3. Close the cold water inlet valve.
4. Connect a hose to the drain valve and terminate it to an adequate
drain or external to the building.
5. Open the water heater drain valve and allow all of the water
to drain from the tank. Flush the tank with water as needed to
remove sediment.
6. Close the drain valve, refi ll the tank, and restart the heater as
directed in this manual.
If the water heater is going to be shut down for an extended period,
the drain valve should be left open.
IMPORTANT: Condensation may occur when refi lling the tank and
should not be confused with a tank leak.
SERVICE
Before calling for repair service, read the “Start Up Conditions” and
“Operational Conditions” found in the “For Your Information” section
of this manual.
If a condition persists or you are uncertain about the operation of the
water heater contact a service agency. If you are not thoroughly familiar
with gas codes, your water heater, and safety practices, contact your
gas supplier or qualifi ed installer to check the water heater.
Use the ”Leakage Checkpoints” guide to check a “Leaking”
water heater. Many suspected “Leakers” are not leaking tanks. Often
the source of the water can be found and corrected.
Read this manual fi rst. Then before checking the water heater make
sure the gas supply has been turned “OFF”, and never turn the gas
“ON” before the tank is completely full of water.
Never use this water heater unless it is completely fi lled with water.
To prevent damage to the tank, the tank must be fi lled with water.
Water must fl ow from the hot water faucet before turning “ON” gas
to the water heater.