53 KLN 009/012 - 53 QNL 009/012GB - 7ENGLISHIndoor Unit Display• UNIT ON (Green) : Lights when the operation is going on• TIMER (Yellow) : Lights during reservation mode• CHECK (Red) : Lights when the optional electric aircleaner needs checking• AIR CLEAN (Green) : Lights when the optional electric aircleaner is operatingNOTA:The CHECK and the AIR CLEAN lamp are only installed onunits with opional electric air cleaner.Unit descriptionSwitch Panel• EMERGENCY switch: Can be used when the remote controlleris lost or inoperative.• TEST switch: Is used only by service man to test the unitoperation.• AIR CLEAN RESET button: Press this button when the“CHECK” lamp on the indoor unit display lights on.• For the usage of EMERGENCY, TEST and AIR CLEANswitches, refer to EMERGENCY, EST AND AIR CLEANINGOPERATION, p. 13.Installed on standard units and unitswith optional active carbon filter/electro static filter.Installed on units with optionalelectric air cleaner.REMOTETEST EMER.REMOTETEST EMER.AIRCLEANRESETSwitch PanelIndoor Unit Display