Hitachi RAS-18G5 Service Manual page 5

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CAUTION
!
1.
In quiet or stop operation, slight fl owing noise of refrigerant in the refrigerating cycle is heard occasionally,
but this noise is not abnormal for the operation.
2.
When it thunders near by, it is recommended to stop the operation and to disconnect the power cord plug
from the power outlet for safety.
3.
In the event of power failure, the airconditioner will restart automatically in the previously selected mode
once the power is restored. In the event of power failure during TIMER operation, the timer will be reset
and the unit will begin or stop operating under a new timer setting.
4.
If the room air conditioner is stopped by adjusting thermostat, or missoperation, and re-start in a moment,
there is occasion that the cooling operation does not start for 3 minutes, it is not abnormal and this is the
result of the operation of IC delay circuit. This IC delay circuit ensures that there is no danger of blowing
fuse or damaging parts even if operation is restarted accidentally.
5.
This room air conditioner should not be used at the cooling operation when the outside temperature is
below 21°C (70°F).
6.
When the operation button is set to "cool" from other mode, the compressor will stop for about 3 minutes
as IC delay circuit protection.
– 3 –

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