Contents1 Safety Precautions.....................................................................................................................12 Attention for Installation...........................................................................................................32.1 Precautions for R410A..................................................................................................32.2 Precaution for Installation .............................................................................................32.3 Precaution for Operation Test........................................................................................32.4 Accessories....................................................................................................................33 Product Introduction .................................................................................................................43.1 Names of Main Parts.....................................................................................................43.2 Combinations for Outdoor and Indoor Units ................................................................43.3 Parts and Components of Unit ......................................................................................53.4 Working Temperature Range.........................................................................................54 Selection of Installation Location and Precautions ...................................................................64.1 Selection of Installation Location .................................................................................64.2 Outline Dimension of Outdoor Unit..............................................................................74.3 Installation and Servicing Space ...................................................................................75 Installation Instruction ..............................................................................................................86 Installation of Refrigerant Pipes ...............................................................................................96.1 Allowable Length and Drop Height of Connecting Pipe ..............................................96.2 Dimension of Connecting Pipe ...................................................................................106.3 Connection of Branch Pipe .........................................................................................106.5 Connection of Refrigerant Pipes .................................................................................136.6 Connection of Refrigerant Pipe...................................................................................146.7 Leak Test .....................................................................................................................156.8 Vacuum Operation.......................................................................................................156.9 Refrigerant Charging...................................................................................................167 Electrical Wiring Work ...........................................................................................................197.1 Wiring Connection ......................................................................................................197.2 Requirements of Power Circuit and Cable..................................................................197.3 Ground Requirements .................................................................................................207.4 Precautions on the Electrical Wiring Work .................................................................207.5 Precaution of Laying Wires.........................................................................................217.6 Procedures for Electrical Wiring Work .......................................................................218 Design of Drainage Pipeline ...................................................................................................228.1 Installation of Drain Hose ...........................................................................................228.2 Design of Drainage Pipeline .......................................................................................229 Installation of Protective Layer...............................................................................................2310 Test Operation.........................................................................................................................2410.1 Check after Installation ...............................................................................................2410.2 Test Operation .............................................................................................................2411 Testing Board Introduction .....................................................................................................2511.1 Compose of the Testing Board ....................................................................................2511.2 Instruction of Function and Data Section....................................................................256.4 Oil Trap Design Requirements ...................................................................................11