CONTENTS
1. Overview
1.1 General Information .........................................................................................................4
1.2 Working Principle & System Principle .............................................................................. 4
1.3 Main Features ................................................................................................................ 10
1.4 Nomenclature ................................................................................................................. 12
1.5 Products Series .............................................................................................................. 14
1.6 Performance Parameter ................................................................................................. 15
1.7 Operating Range ............................................................................................................ 19
1.8 Refnet ............................................................................................................................ 19
1.9 Outline of Indoor Units ................................................................................................... 21
1.10 Outline of Outdoor Units .............................................................................................. 25
2. Unit Control
2.1 Introduction of the Controller .......................................................................................... 27
2.2 Main Functions ............................................................................................................... 27
2.3 Operation of the Controller ............................................................................................. 28
2.4 Software Management System ...................................................................................... 32
2.5 Network Central Control ................................................................................................. 34
2.6 Wiring Diagram ..............................................................................................................35
2.7 Electric Connection ........................................................................................................ 49
2.8 Electric Data ................................................................................................................... 51
3. Selection
3.1 Load Calculation ............................................................................................................52
3.2 Selection of Indoor Units ................................................................................................ 54
3.3 Selection of Outdoor Units ............................................................................................. 55
3.4 Design of Air System ....................................................................................................... 58
3.5 Selection of Refnet Joint ................................................................................................ 63
3.6 Selection of E-EXV Box ................................................................................................. 66
4. Installation
4.1 Outdoor Unit Installation ................................................................................................ 67
4.2 Indoor Unit Installation ................................................................................................... 70
4.3 Refrigerant Piping Design and Installation ..................................................................... 78
4.4 Design, Processing and Installation of Condensated Drain Pipe ................................... 93
5. Testing
5.1 Hardware Diagram and Configuration ........................................................................... 97
5.2 Trial Run ...................................................................................................................... 104
6. Servicing and Maintenance
6.1 User Guide ................................................................................................................... 105
6.2 Servicing and Maintenance .......................................................................................... 106
7. Fault Code and Troubleshooting ...........................................................110
Annexes .......................................................................................................112
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