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Maintenance Method
Daily Inspection and Maintenance
For the safety use of this unit, please perform the daily inspection and maintenance without fail.
Using the city water to this unit might attach dirt.
Do inspect and maintain this point while
performing daily inspection and maintenance.
WARNING!
Disconnect the power cable from the power source when doing an inspection or maintenance unless
needed.
Perform the daily inspection and maintenance after returning the temperature of this unit to the
normal one.
Do not disassemble this unit.
CAUTION!
Use a well-wrung, damp, soft cloth to wipe dirt off of
this unit. Do not use benzene, thinner or cleanser
for wiping.
Do not scrub this unit.
Deformation,
deterioration or color change may result.
Monthly maintenance
Check the master circuit breaker function.
1. Connect the power cord.
2. Turn the breaker on.
3. Push the red test switch with a ballpoint pen etc.
4. If there is no problem, the master circuit breaker will be turned off.
Check the movement of overheating prevention device.
Perform the operation under the specified value of device with certain preset temperature. Then set
the operation temperature of overheating prevention device to the value approximately 10
℃
lower
than the preset temperature of device.
In normal condition, the overheating prevention device shuts off the heating circuit in a few seconds,
at the same time the alarm lamp lights on and the Er19 is indicated accompanied with a warning
buzzer.
Be sure to check the movement of earth leakage breaker malfunction and overheating prevention device
mentioned above before a long-term continuous operation or unmanned night operation.
For any questions, contact the dealer who you purchased this unit from, or the nearest sales
division in our company.
