Hitachi RAS-S25YHAB Instruction Manual page 18

ECO OPERATION
■ ECO OPERATION with sensor
The sensor detects the presence of people in the room. When nobody is detected, the unit automatically starts
enegy saving operation by shifting the set temperature in two steps.
When the presence of people is not detected for 20 minutes, the set temperature is automtatically shifted for
energy saving. If nobody is in the room for 60 minutes, the set temperature is shifted further.
Cooling operation [diagram representation
for illustrative purpose only]
Setting
temperature
Shift
temperature
20 minutes
The unit returns to normal operation when the sensor detects human movement.
NOTE
By pressing (POWERFUL) button, ECO operation is cancelled.
●
After auto restart, ECO operation is cancelled and previous operation mode shall start.
●
By pressing the
●
1
DEHUMIDIFYING or COOLING operation, the air conditioner
performs the "ECO" operation.
■ To start ECO operation
Press (ECO) button during operation.
●
" " is displayed on the LCD.
A beep sound is emitted from indoor unit.
The sensor starts to detect the presence of people in the room.
■ To cancel ECO operation
Press (START/STOP) button. Or
●
Press (ECO) button again.
●
" " disappears from the LCD.
A beep sound is emitted from indoor unit.
Heating operation [diagram representation
for illustrative purpose only]
Setting
temperature
Shift
temperature
60 minutes
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(ECO) button during AUTO, HEATING,
Shift
temperature
Shift
temperature
20 minutes 60 minutes