CONTENTS
Foreword
1. Overview
1.1 General Information………………………………………………………………………………4
1.2 Working Principle & System Principle…………………………………………………………4
1.3 Main Features……………………………………………………………………………………11
1.4 Nomenclature……………………………………………………………………………………13
1.5 Products Series…………………………………………………………………………………15
1.6 Performance Parameter…………………………………………………………………………16
1.7 Operating Range…………………………………………………………………………………20
1.8 Refnet………………………………………………………………………………………………20
1.9 Outline of Indoor Units…………………………………………………………………………22
1.10 Outline of Outdoor Units………………………………………………………………………28
2. Unit Control
2.1 Introduction of the Controller……………………………………………………………………34
2.2 Main Functions……………………………………………………………………………………34
2.3 Operation of the Controller………………………………………………………………………35
2.4 Software Management System…………………………………………………………………39
2.5 Network Central Control…………………………………………………………………………41
2.6 Wiring Diagram……………………………………………………………………………………42
2.7 Electric Connection………………………………………………………………………………56
2.8 Electric Data……………………………………………………………………………………58
3. Selection
3.1 Load Calculation…………………………………………………………………………………59
3.2 Selection of Indoor Units………………………………………………………………………61
3.3 Selection of Outdoor Units……………………………………………………………………63
3.4 Design of Air System……………………………………………………………………………66
3.5 Selection of Refnet Joint………………………………………………………………………71
4. Installation
4.1 Installation of Indoor Units………………………………………………………………………75
4.2 Installation of Outdoor Units……………………………………………………………………82
4.3 Refrigerant Pipe & Installation…………………………………………………………………87
4.4 Design, Processing and Installation of Condensate Pipe…………………………………102
5. Testing
5.1Hardware Diagram and Equipment………………………………………………… 106
5.2 Running……………………………………………………………………………………………113
6. Servicing and Maintenance
6.1 Notice to the Customer…………………………………………………………………………114
6.2 Maintenance………………………………………………………………………………………115
7. Troubleshooting…………………………………………………………………………………119
Annexes…………………………………………………………………………………………………121
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