2.2. Indoor UnitAutomatic Operation Switch• Press for < 5s to run Automatic Operation.(Used when the remote control cannot be used.)• Press continuously for 5s and < 8s to runForced Cooling Operation.• Press continuously for 8s and < 11s torun Forced Heating Operation.• Press continuously for 11s and < 16s tochange different remote controllingsetting (4 type of transmission code).• Press continuously for 16s or < 21s toswitch OFF / ON Remote ControlReceiving Sound or H14 AbnormalityDetection Mode.Operation Indication Lamps (LED)Quiet ModeFour Operation Modes• Automatic, Heating, Cooling and Soft DryOperation.Delay ON Timer and OFF TimerPowerful Mode• For quick cooling or heating.• POWER (Green) ...... Lights up in operation,blinks in AutomaticOperation Modejudging, deice, OnTimer sampling andHot Start operation.• TIMER (Orange) .... Lights up in TimerSetting.Blinks in SelfDiagnosis Control.• QUIET (Orange) .... Lights up in QuietMode Operation.• POWERFUL (Orange) ... Lights up whenPowerful Mode isselected.• (Green) ............ Lights up in IonizerMode Operation.Blinks in Ionizererror.• SUPER ALLERU-BUSTER .... Lights up in(Blue) operation.Automatic and 5 Manual IndoorFan SpeedsAutomatic and 5 Manual VerticalAirflow DirectionsAutomatic and 5 Manual HorizontalAirflow DirectionsAutomatic Restart Control• Operation is restarted after power failureat previous setting mode.Microcomputer-controlled RoomTemperature Control• To provide quiet operation.Ionizer Control• Ionizer control for generate negative ionin discharge air.4CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE