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Safety Precautions ... 3 Dimensions ... 9 Symbols Used in this Manual ... 9 Indoor Unit ... 9 Outdoor Unit ... 10 Product Specifications ... 11 Installation ... 12 Installation Parts ... 12 Installation Tools ... 12 Installtion Map ... 13 Confirm the Refrigerant ... 14 Select the best Locations ... 15 Piping Length and Elevation ... 16 Preparing Work for Installation ... 17 Fixing Indoor Unit ... 18 Flaring work and connection of piping ... 19 Flaring work ... 19 Connection of piping-Indoor ... 20 Connection of the drain hose ... 21 Connection of piping-Outdoor ... 23 Connecting the cable between indoor unit and outdoor unit ... 24 Connect the cable to the Indoor unit ... 24 Connection method of the connecting cable(Example) ... 25 Checking the drainage and forming the pipings ... 26 Checking the drainage ... 27 Forming the piping ... 28 AIR PURGING ... 29 Air purging ... 29 Charging ... 31 Panel front assembly ... 32 Test running ... 33 How to replace picture & photograph ... 35 Operation ... 36 Functions ... 36 The function of main control ... 37 Display Function ... 43 Self-diagnosis Function ... 43 Remote Control Operations ... 44 Disassembly ... 45 Indoor Unit ... 45 Schematic Diagram ... 47 Heat Pump/Cooling Only Series(Indoor Unit) ... 47 Heat Pump Series (Outdoor Unit) ... 48 INDOOR UNIT P.W.B. ASSEMBLY ... 49 OUTDOOR UNIT P.W.B. ASSEMBLY ... 50 DISPLAY P.W.B. ASM ... 51 Wiring Diagram ... 52 Troubleshooting Guide ... 54 Refrigeration Cycle Diagram ... 54 Pipe length and the elevation ... 55 3-way Valve ... 56 Cycle Parts ... 62 Electronic Parts ... 63 Exploded View ... 72 Replacement Parts List ... 74