Hitachi RAC-25YH4, Service Manual, Page: 13 / 121

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VARIOUS FUNCTIONS
■
Auto Restart Control
• If there is a power failure, operation will be automatically restarted when the power is resumed with
previous operation mode and airflow direction.
(As the operation is not stopped by remote controller.)
• If you intend not to continue the operation when the power is resumed, switch off the power supply.
When you switch on the circuit breaker, the operation will be automatically restarted with previous
operation mode and airflow direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT or COOL depending on the
initial room temperature. The selected mode of operation will change when the room temperature
varies.
Press the FUNCTION selector so that the display indicates the
(AUTO) mode of operation.
• When AUTO has been selected, the device will automatically
determine the mode of operation, HEAT or COOL depending
on the current room temperature.
• When AUTO is first selected, the device will determine the
current room temperature and select the proper operation
mode accordingly.
• When the air conditioner has adjusted the room's temperature
to the near preset temperature, it will begin to monitor
operation. If the room temperature subsequently changes,
the air conditioner will once again select the appropriate
operation (heating or cooling) to adjust the temperature to
the preset temperature. The monitoring operation range is
+
3°C relative to the preset temperature.
• If the mode automatically selected by the unit is not
satisfactory, manually change the mode setting (heat,
dehumidify, cool or fan).
1
Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.
Press the (FAN SPEED) button, AUTO and LOW is available.
■
As the settings are stored in memory in the remote controller, you
only have to press the (START/STOP) button next time.
You can raise or lower the temperature setting as necessary by
maximum of 3°C.
Press the temperature button and the temperature
setting will change by 1°C each time.
• The preset temperature and the actual room temperature may
vary somewhat depending on conditions.
START
STOP
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