9 Operating Instructions 3510 Installation Instructions 4110.1. Safety Precautions 4110.2. Indoor Unit 4410.3. Outdoor Unit 4811 2-way, 3-way Valve 5111.1. Evacuation of the Equipment (For Europe & OceaniaDestination) 5211.2. Air Purging of the Piping and Indoor Unit 5812 Servicing Information 6412.1. Indoor Electronic Controllers Removal Procedures 6412.2. Cross Flow Fan and Indoor Fan Motor RemovalProcedures 6512.3. Remote Control Reset 6612.4. Auto OFF/ON Button 6713 Troubleshooting Guide 6813.1. Refrigeration cycle system 68• High efficiency.• Compact design.• Wider range of horizontal discharge air.• Air Filter with function to reduce dust and smoke.• Automatic air swing and manual adjusted by RemoteControl for horizontal and vertical airflow.• Long installation piping up to 25 meter.• Supersonic Air Purifying System with SUPER alleru-buster.− Inactive various harmful airbone elements includingallergens, viruses and bacteria.− Generated supersonic waves enhance the ability tocollect dust and dirt in the air.• Quality Improvement− Random auto restart after power failure for safety restartoperation.− Gas leakage detection.− Prevent Compressor reverse cycle.− Inner protector to protect Compressor.− Noise prevention during soft dry operation.− Blue coated Condenser for high resistance to corrosion.− Anti-dew formation control (Cooling & Soft Dry).− Overload Protection Control (Heating).− Outdoor Fan Control.− Compressor High Pressure Control.• Operation Improvement− Quiet mode to provide quiet operation.− Powerful mode to reach the desired room temperaturequickly.− Ionizer control for generating negative ion in dischargeair.− 24-hour timer setting.14 Technical Data 7014.1. Thermostat characteristics 7014.2. Operation characteristics 7115 Exploded View (Indoor Unit) 7315.1. CS-A18DKD CS-A24DKD 7316 Replacement Parts List (Indoor Unit) 7416.1. CS-A18DKD CS-A24DKD 7417 Exploded View (Outdoor Unit) 7517.1. CU-A18DKD CU-A24DKD 7518 Replacement Parts List (Outdoor Unit) 7618.1. CU-A18DKD CU-A24DKD 7619 Electronic Circuit Diagram 7719.1. Indoor Unit & Outdoor Unit 7719.2. Remote Control 8319.3. Print Pattern Indoor Unit Printed Circuit Board 8419.4. Print Pattern Indicator & Receiver Printed Circuit Board 8519.5. Print PatternOutdoor Unit Printed Circuit Board 86• Serviceability Improvement− Removable and washable Front Panel.1 Features2CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD