Installation / Operation Instruction Manual

12
MAINTENANCE
The storage unit should be drained completely to prevent freezing whenever
the building is left unoccupied during the cold weather months. In order to
insure efficient operation and long tank life, drain the storage unit at least
once a month through the drain valve until the water runs clear. Failure to do
this may result in noisy operation and lime and sediment buildup in the
bottom of the tank. Check the temperature-pressure relief valve to insure
that the valve has not become encrusted with lime. Lift the lever at the top of
the valve several times until the valve seats properly without leaking and
operates freely.
The following maintenance checks should be performed by a qualified
service technician at the minimum periodic intervals suggested below. In
some installations, the maintenance interval may be more frequent
depending on the amount of use and the operating conditions of the water
heater. Regular inspection and maintenance of the storage unit will help to
insure safe and reliable operation.
1. At least once a year, check the combination temperature and pressure
relief valve to insure that the valve has not become encrusted with lime.
Lift the lever at the top of the temperature-pressure relief valve several
times until the valve seats properly without leaking and operates freely.
2. If the combination temperature and pressure relief valve on the appliance
discharges periodically, this may be due to thermal expansion in a closed
water supply system. Contact the water supplier or local plumbing
inspector on how to correct this situation. Do not plug the combination
temperature and pressure relief valve outlet for any reason.
IMPORTANT
The storage unit should be inspected at a minimum of annually by a
qualified service technician for damaged components. DO NOT operate
this storage unit if any part is found damaged.
WARNING
When lifting lever of temperature-pressure relief valve, hot water will be
released under pressure. Be certain that any released water does not
result in bodily injury or property damage. The magnesium anode rod
should be inspected periodically and replaced when necessary to prolong
tank life.