Hubbell Electric Heater Company 238-44422-00L ユーザーズマニュアル
16
MAINTENANCE
Shut off the electric power whenever the water supply to the water heater is
off. Shut off the electric power and water supply, drain the water heater
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 water heater 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.
off. Shut off the electric power and water supply, drain the water heater
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 water heater 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 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 water heater will help to insure safe and
reliable operation.
1. Annually, check the operation of the thermostat(s).
2. Bi-annually, check the seal around the heating elements for leaks. If there
is any sign of leaking, disconnect the power supply to the water heater
and contact the plumbing professional that installed this water heater or a
qualified service technician.
and contact the plumbing professional that installed this water heater or a
qualified service technician.
IMPORTANT
The water heater should be inspected at a minimum of annually by a
qualified service technician for damaged components. DO NOT operate
this water heater if any part is found damaged.
qualified service technician for damaged components. DO NOT operate
this water heater 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.
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.