Indoor UnitWhen the remote control cannot be used orfor repairing and testing ,please use thisbutton.Power Switch ON/OFFSignal Receiving Sound ControlKeep pressing this button for 10seconds to turnon or turn off the signal receiving sound.Operation Indication LampsPower (Green)(Green)Lights up in operation;Blinks within 20 secondsduring Auto OperationMode judging.Lights up in Oxygen modeoperationOperation ModeHeating/Cooling/Soft Dry /Auto OperationTime Delay Safety ControlThe unit will restart operation in 3-4minutes after each pause.7-Minutes Time Save Control7-minutes automatic restarting at CoolingOperation4Auto SwitchButtonAnti-freezing Control for the EvaporatorCooling or Soft Dry OperationHigh, Med, LowAuto Fan SpeedIndoor Fan Speed ControlVertical airflowThe louver automatically swings up and downor can be manual adjusted by remote controlHorizontal airflowThe louver can be manually adjusted by hand.Airflow Direction ControlDelayed On-timer ControlFor cooling or soft dry mode, the unitstarts 15 minutes before the set time withthe remote control.CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD(Orange)O2 AIRTIMERLights up in Timer operationOxygen OperationTo supply oxygen enrich airWarm Booting ControlIndoor fan starts running when temperatureof evaporator reaches 30 or above.When temperature of evaporator is between30 and 34 ,indoor fan will run at Super Lowor Low speed.When temperature of evaporator reaches 34 ,Warm Booting Operation ends.