Rheem AP15121-1 - Manual (Page 15)

15
Vacation and Extended Shut-Down
If the water heater is to remain idle for
an extended period of time, the power
and water to the appliance should
be turned off to conserve energy
and prevent a build-up of dangerous
hydrogen gas.
The water heater and piping should be
drained if they might be subjected to
freezing temperatures.
After a long shut-down period, the
water heater’s operation and controls
should be checked by qualified service
personnel. Make certain the water
heater is completely filled again before
placing it in operation.
NOTICE: Refer to the
Hydrogen Gas Caution in the
Operating Instructions.
Anode Rod
This water heater is equipped with a
non-removable anode rod designed to
prolong the life of the glass lined tank.
The anode rod is slowly consumed,
thereby eliminating or minimizing
corrosion of the glass lined tank.
Water sometimes contains a high
sulfate and/or mineral content and
together with cathodic protection
process can produce a hydrogen
sulfide, or rotten egg odor in the
heated water. Chlorination of the water
supply should minimize the problem.
NOTICE: Do not remove
the anode rod from the water
heater’s tank. Operation
with the anode rod removed
will greatly shorten the life of
the glass lined tank and will
exclude warranty coverage.