Various Functions; Automatic Operation; Auto Restart Control; Condition Of Automatic Operation - Hitachi RAK-25NH4 Service Manual

VARIOUS FUNCTIONS

I Auto Restart Control
G
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.)
G
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 or OFF by remote control.
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, COOL or DEHUMIDIFY depending on the current room
temperature. The selected mode of operation will change when the room temperature varies. However the mode of operation will
not change when indoor unit connected to multi type outdoor unit.
RESET
START
STOP
I Condition of Automatic Operation
Initial room temperature
(approx.)
Over 27°C
23~27°C
Under 23°C
Press the FUNCTION selector so that the display indicates the
G
When AUTO has been selected, the device will automatically determine the mode of
operation, HEAT, COOL or DEHUMIDIFY depending on the current room temperature.
1
However the mode of operation will not change when indoor unit connected to multi type
outdoor unit.
G
If the mode automatically selected by the unit is not satisfactory, manually change the
mode setting (heat, dehumidify, cool or fan).
Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.
I
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.
°C
G
The preset temperature and the actual room temperature may vary somewhat depending on
conditions.
G
The display does not indicate the preset temperature in the AUTO mode. If you change the
setting, the indoor unit will produce a beep.
Press the (FAN SPEED) button, AUTO and LOW is available.
Function
COOL
DEHUMIDIFY
HEAT
Press the temperature button and the temperature setting will change by
1°C each time.
Temperature setting
27°C
Slightly lower than the
room temperature
23°C
– 11 –
(AUTO) mode of operation.
FAN SPEED
HI at start, MED or LOW after the
preset temperature is reached
LOW
HI at start, MED or LOW after the
preset temperature is reached