964 REMOTE CONTROL RECEIVING SOUND OFF/ON MODEThe Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressedcontinuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the RemoteControl Receiving Sound Off/On Mode is in standby condition) and press “AC Reset” button at remotecontrol.Press “Auto OFF/ON button” to toggle remote control receiving sound.o Short “beep”: Turn OFF remote control receiving sound.o Long “beep”: Turn ON remote control receiving sound.After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ONMode is restarted.16.2 Heat Only Operation16.2.1 How to Activate/Deactivate Heat only Operation To enable the “Heat Only” mode, press the AUTO OFF/ON SW for more than 8s and less than 11s, “Beep Beep”sound will be heard, then release the AUTO OFF/ON SW and press remote controller CHECK button. A short“Beep” sound will be heard. “Heat Only” mode is now enable. To disable the “Heat Only” mode, press the AUTO OFF/ON SW for more than 8s and less than 11s, “Beep Beep”sound will be heard, then release the AUTO OFF/ON SW and press remote controller CHECK button. A long“Beep” sound will be heard. “Heat Only” mode is now disable. To pump down the unit during Heat Only Operation press AUTO switch for 5 seconds.AUTO SWis pressedEmergencyOperationForcedCoolingOperationForcedCoolingOperationForcedHeatingOperationRemoteControlNumberSwitchModeRemoteControlReceivingSoundOFF/ON*OperationTime CheckModeNoSettingModeHeat OnlyModeEnable/DisableAC reset code AC reset code AC reset code AC reset codeAC reset code CHECKcodeBeeps63s62s12s61s11s8s5BeepBeep BeepBeepBeep BeepBeepBeepBeep Beep NoThe unit will operate under forced coolingmode continuously if “AC reset” code isnot pressed to activate standby