• Auto Fan Speed:-• Quiet operation stops when:-− Quiet/Powerful button is pressed again.− Stopped by OFF/ON operation button.− Timer OFF activates.8.11. Ionizer Operation• The Ionizer operation is to provide fresh air effect to user by producing minus ion in discharge air.8.11.1. Operation Control1. Ionizer individual operationa. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at the remote control is pressed, theIonizer and Fan operations will turn on. Only ION LED will illuminates. Power LED maintain off. (1 → 2)b. Ionizer individual operation can be turned off by pressing the ION button again. (2 → 1)c. Fan speed can be adjusted later by customer during this operation.d. Vertical airflow direction can be adjusted using remote control during Ionizer individual operation.e. During Ionizer individual operation, operated mode (Auto, Cool, Dry) can be activated by turning on the OFF/ON operationbutton. (2 → 4)f. If power failure occur during Ionizer individual operation, after power resume, Ionizer operation will be activated immediately.g. When the Ionizer circuit feedback process error occur for 24 times (about 11hr 30 min.), Ionizer and Fan operations will turnoff with ION LED blinks continuously.(For details, please refer to Ionizer Error detection control)25CS-V18DKE CU-V18DKE / CS-V24DKE CU-V24DKE