Table of Contents
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6.3 Circuit Diagram .................................................................................................................................. 38
7 Installation of Communication System ............................................................................... 38
7.1 Communication Cable Terminal Connection ...................................................................................... 38
7.2 Communication Cable Connection .................................................................................................... 39
7.3 Installation and Disassembly of Wired Controller .............................................................................. 39
8 Refrigerants Perfusion ......................................................................................................... 41
8.1 Precautions on Refrigerant Leakage ................................................................................................. 41
8.2 Method for Calculating Incremental Refrigerant for Extended Pipe .................................................. 42
8.3 Refrigerant Replenishing Method ...................................................................................................... 42
9 Check for Acceptance After Installation .............................................................................. 43
COMMISSIONING and TRIAL RUN ................................................................................. 44
1 Commissioning Flowchart ................................................................................................... 44
2 Precautions on Safety .......................................................................................................... 44
3 Preparations .......................................................................................................................... 44
3.1 Tool Preparation for Commissioning .................................................................................................. 44
3.2 Document Preparation for Commissioning ........................................................................................ 45
3.3 Check before Commissioning ............................................................................................................ 46
4 Commissioning and Trial Run ............................................................................................. 47
4.1 Precautions for Commissioning ......................................................................................................... 47
4.2 Brief Introduction to Commissioning .................................................................................................. 47
4.3 Engineering Commissioning .............................................................................................................. 47
4.4 Commissioning Completed ................................................................................................................ 48
4.5 Reference Value for Judging Running Parameters of the Unit (Commissioning Inspection) ............ 48
5 Check Before Acceptance .................................................................................................... 49
6 Unit Function Setting ........................................................................................................... 50
MAINTENANCE ................................................................................................................ 51
1 Error Code ............................................................................................................................. 51
2 Troubleshooting ................................................................................................................... 53
2.1 E1 High Pressure Protection .............................................................................................................. 53
2.2 E3 Refrigerant-lacking Protection ...................................................................................................... 54
2.3 E4 High Discharge Temperature Protection....................................................................................... 55
2.4 E6 Communication Error .................................................................................................................... 55
2.5 F3, F4, F6, Fd, FE, FL Temperature sensor Error ............................................................................. 56
3 Repair of Key Components .................................................................................................. 57
3.1 Introduction to Key Components ........................................................................................................ 57
3.2 Disassembly of Key Components ...................................................................................................... 58
4 Exploded View and Parts List .............................................................................................. 61
4.1 Exploded View and Parts List of the Outdoor Unit ............................................................................. 61
4.2 Exploded View and Parts List of the Water Tank ............................................................................... 62
UNIT MAINTENANCE ....................................................................................................... 64
1 Water Input and Drainage of Water Tank ............................................................................. 64
2 Regular Cleaning for the Water Tank................................................................................... 64
3 Safety Valve Maintenance .................................................................................................... 64
4 Maintenance of the Unit ....................................................................................................... 65
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Table of Contents
