Use & Care Manual

39
Draining the Water Heater
!
CAUTION: Shut off gas to the water
heater at the manual gas shut-off valve before
draining water.
!
DANGER: Before manually operating the
temperature and pressure relief valve, make
certain no one will be exposed to the hot
water released by the valve. The water drained
from the tank may be hot enough to present a
scald hazard and should be directed to a
suitable drain to prevent injury or damage.
Before turning off the cold water supply to
the water heater, open a hot water faucet
allowing sufficient cold water into the tank
to prevent the risk of a scald injury while
draining the water heater. Once the water
in the tank is no longer hot, turn off the cold
water supply to the water heater. Open a hot
water faucet or lift the handle on the relief
valve to admit air to the tank.
Attach a garden hose to the drain valve on the
water heater and direct the stream of water to a
drain. Open the valve.
Routine Preventative Maintenance
Properly maintained, your water heater will
provide years of dependable trouble-free service.
It is recommended that a periodic inspection
of the combination gas control (thermostat),
burner, relief valve, internal flue-way, vent and
combustion air-inlet systems be made by service
personnel qualified in gas appliance repair.
It is suggested that a routine preventative
maintenance program be established and
followed by the user.
Inspect the combustion air-inlet and vent
systems. Make certain that all joints are secure
and that combustion air-inlet and vent pipe
supports are all in place. Check the outdoor
combustion air-inlet and vent terminals to see
that they are free of obstructions, and that there is
no damage nearby caused by condensate.
Periodically, lift and release the lever handle on
the temperature pressure relief valve, located
near the top of the water heater, to make certain
the valve operates freely. Allow several gallons to
flush through the discharge line to an open drain.
NOTICE: If the temperature and pressure
relief valve on the water heater discharges
periodically, this may be due to thermal
expansion in a closed water system. Contact
the water supplier or your plumbing
contractor on how to correct this.
DO NOT plug the relief valve outlet.
A water heater’s tank can act as a settling
basin for solids suspended in the water. It is
therefore not uncommon for hard water deposits
to accumulate in the bottom of the tank. If
allowed to accumulate, these solids can cover
the combination gas control (thermostat) sensors,
causing the sensors to operate erratically.
Because accumulated solids can prevent the
combination gas control (thermostat) sensors
from accurately reading the water temperature,
the water at the fixture can be hotter than the
combination gas control (thermostat) setting. It
is suggested that a few quarts of water be drained
from the water heater’s tank every month to
clean the tank of these deposits.
Rapid closing of faucets or solenoid valves in
automatic water using appliances can cause a
banging noise heard in a water pipe. Strategically
located risers in the water pipe system or
water hammer arresting devices can be used to
minimize the problem.
The anode rod should be removed from the water
heater’s tank periodically,for inspection and
replaced when more than 6 in. (15.2 cm) of core
wire is exposed at either end of the rod.
Make sure the cold water supply is turned off
before removing anode rod.
This water heater incorporates a combustion shut
off device that shuts the operation of the water
heater down if undesirable combustion conditions
occur, such as the presence of flammable vapours
or blockage of the combustion air-inlet and/or
vent systems. Please contact a qualified service
technician if this occurs.
DANGER: Before
manually operating the
relief valve, make certain
no one will be exposed to
the danger of the hot
water released by the
valve. The water may be
hot enough to create a
scald hazard. The water
should be released into a
suitable drain to prevent
injury or property damage.
!
DANGER: Hotter
water increases the
potential for Hot Water
Scalds.
DANGER: Failure to
perform the recommended
Routine Preventative
Maintenance can harm the
proper operation of this
water heater, which can
cause carbon monoxide
dangers, excessive hot
water temperatures and
other potentially
hazardous conditions.