Contents 
1 Safety Notices (Please be sure to abide them) ....................................................... 1 
2 Product Introduction ................................................................................................. 2 
2.1 Outline of the Unit and Main Parts .................................................................................... 2 
2.2 Rated Operating Condition ............................................................................................... 2 
3 Installation Instruction .............................................................................................. 3 
3.1 Schematic Diagram of Installation Spaces ........................................................................ 3 
3.2 Requirements for Communication Line ............................................................................. 3 
3.3 Electric Installation ............................................................................................................ 4 
4 Installation Instructions ............................................................................................ 5 
4.1 Installation of Indoor Unit .................................................................................................. 5 
4.2 The installation of the Rear Panel ..................................................................................... 6 
4.3 Preparation of the Piping Hole .......................................................................................... 6 
4.4 Installation of the Drainage Pipe ....................................................................................... 6 
4.5 Installation the Connection Pipes ...................................................................................... 7 
5 Wiring Work ................................................................................................................ 7 
5.1 Connect Cables and Terminals of Wiring Board ................................................................ 7 
5.2 Power Cord Connection .................................................................................................... 8 
5.3 Connection of Communication Line of IDU and ODU ........................................................ 8 
5.4 Connection of Communication Line of Wired Controller .................................................... 9 
5.5 Illuminate for Connection of Wired Controller and Indoor Units Network ........................... 9 
5.6 Installation of the Indoor Unit ............................................................................................ 9 
5.7 Connection of External Water Pump ................................................................................10 
6 The Best Usage Method .......................................................................................... 12 
7 Maintenance Method ............................................................................................... 12 
7.1 Cleaning Panel ................................................................................................................12 
7.2 Cleaning the Air Filters .....................................................................................................13
 
7.3 Check before the Usage Season .....................................................................................13 
7.4 Check after the Usage Season ........................................................................................14 
8 Table of Error Codes for Indoor Unit ...................................................................... 14 
9 Malfunction Analyzing ............................................................................................. 14 
9.1 Service Center .................................................................................................................15 
9.2 After-sales Service ...........................................................................................................15 
10 Adjusting Method of the Air Direction .................................................................. 15 
10.1 Adjusting Air Direction Up and Down .............................................................................15 
10.2 Adjusting Air Direction Left and Right .............................................................................15