2.2. Indoor UnitIonizer Operationï Generate and discharge negative ion.Random Auto Restart Controlï Unit will be restarted, when resume frompower failure, at previous setting.Anti-Freezing Controlï To prevent indoor heat exchanger fromfreezing.Indoor Fan Speed Controlï Manual control fan speed(High, Medium and Low).ï Automatic fan speedïïVertical airflow control can be adjustedautomatically or manually by remote control.Horizontal airflow control can be adjustedautomatically or manually by remote control.Airflow Direction ControlAutomatic Operation Buttonï Press for < 5 second to operate Automaticoperation mode.Use when the remotecontrol cannot be used.ï Press for > 5 second to operate Coolingoperation mode and compressor forceto on (ìbeepî sound will be heard). Usedwhen test running or servicing.ï Within 20 second of Cooling operation,press continuously for > 5 second to entervarious setting mode. ìbeep, beepî soundwill be heard. (Used to toggle remotecontrol signal receiving sound or selectremote control transmission code.)AUTOOFF / ONOperation Indication Lamps (LED)ï POWER (Green) ........ Lights up in operation,blinks in AutomaticOperation judging.ï QUIET (Orange) ........ Lights up in QuietOperation.ï TIMER (Orange) ....... Lights up in TimerSetting.ï POWERFUL (Orange) .. Lights up in PowerfulOperation.ï ION (Green) ........... Lights up in IonizerOperation.ï SUPERALLERU-BUSTER (Blue) ... Lights up in operation.Operation Modeï Heating, Cooling, Soft Dry and AutomaticOperation.Powerful Operationï Reaches the desired room temperaturequickly.Timer Operationï Delay OFF/ON Timer control.Time Delay Safety Controlï Restarting is inhibited for approximately3 minutes.Quiet Operationï To provide quiet operation.7 Minutes Time Save Controlï To reduce the built up humidity insidethe room.Anti-Dew Formation Controlï Anti-Dew Formation Control for indoorunit discharge area.Hot-Start Controlï To prevent cold air being discharge duringHeating operation starts.Anti Cold Draft Controlï To prevent the cold draft during Heatingmode operation in thermo off condition.4CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD