-٢٢-OPERATING UNIT THROUGH ELECTRONIC OPERATION PANEL (Cont.)7.7 ECO Function :The Eco function can maintain the most comfortable temperature and save energy.Start:1. Press ON/OFF button to start the air conditioner.2. Press Eco button for 2 Seconds to activate Eco (Sleep) operation.• The led of Eco function will light on• The set temperature will be automatically increased by 1°C after 1 hour after the operation modeis selected.• Then the set temperature will be automatically increased by another 1°C after additional 1 hour.• This new temperature will be maintained and the fan speed will automatically change to low speed.Stop: If you want to stop the air conditioner, Press ON/OFF button again.Notes: When activating ECO function in AUTO mode, the set temperaturewill not change over time. To cancel ECO function, press again on ECO button.7.8 LOCK Function :- Use LOCK button when you want settings from being changed accidentally.- When you press LOCK button the first time, all the current settings are looked in but theremote control operation is available.The LOCK symbol will illuminate on the display of the control panel of indoor unit.Note :If you want to cancel LOCK function, press LOCK button again.112