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TABLE OF CONTENTS
Section Contents Page
1 Specifications
1.1 System Specifications 3
1.2 Outline and Dimensions 4
2 General Information
2.1 Before Operating 7
2.2 Operating limits 8
3 Installation
3.1 Indoor Unit 9
3.2 Outdoor Unit 14
3.3 Refrigerant Connection 15
3.4 Brazing of Pipes 17
3.5 Recharging of Refrigerant 19
3.6 Refrigerant Schematics 21
4 Electrical Connections
4.1 Electrical Connections 23
4.2 Control Board Overview 25
4.3 Specification of Electrical Parts 28
5Control
5.1 FCU Control 32
5.2 CDU Control 40
6 Diagnostic
6.1 Diagnostic 43
6.2 Diagnostic – Troubleshooting 46
7 Remote Control Functions 55
8 Replacement of Main Parts
8.1 Indoor Unit(42ADF025, 42ADF035) 67
8.2 Outdoor Unit(38VYX025-R) 71
8.3 Outdoor Unit(38VYX035-R) 76
9 Spare Parts
9.1 Indoor Unit(42ADF025, 42ADF035) 82
9.2 Outdoor Unit 84
10 Performance Curves 87
11 Installation/Servicing Tools 88
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