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Engineering manual

ABBREVIATION EXPLANATION.....................................................................................................................................4

PART I PRODUCT OUTLINE.............................................................................................................................................7

1 VRF SYSTEM OUTLINE ..........................................................................................................................................................8

2 PRODUCT MODEL INTRODUCTION ....................................................................................................................................9

3 VRF SYSTEM PROJECT DESIGN .........................................................................................................................................13

PART II VRF SYSTEM WORKING AND CONTROL ELEMENTS INTRODUCTION..................................34

1 REFRIGERATION SYSTEM OUTLINE ...............................................................................................................................35

2 INDOOR UNIT’S FAN CONTROL........................................................................................................................................40

3 OUTDOOR UNIT’S FAN CONTROL.....................................................................................................................................43

4 COMPRESSOR CONTROL.....................................................................................................................................................46

5 EEV(ELECTRONIC EXPANSION VALVE) CONTROL .......................................................................................................52

6 SYSTEM FAULTS AND PROTECTIONS ..............................................................................................................................55

PART III INDOOR UNIT.....................................................................................................................................................63

1 SLIM CASSETTE SERIES (CKV) ..........................................................................................................................................64

2 CASSETTE SERIES(KXV)......................................................................................................................................................89

3 FLOOR AND CEILING SERIES(SXV).................................................................................................................................114

4 SLIM DUCTED SERIES(DLV) .............................................................................................................................................139

5 DUCTED SERIES(DSV)........................................................................................................................................................162

6 WALL MOUNTED SERIES(PNV) ........................................................................................................................................178

PART IV OUTDOOR UNIT ..............................................................................................................................................203

1 OUTDOOR UNIT...................................................................................................................................................................204

2 HMI(HUMAN AND MACHINE INTERFACE) INTRODUCTION.....................................................................................236

PART V CONTROLLER COMPONENTS ...................................................................................................................245

1 VRF CONTROL SYSTEM INTRODUCTION......................................................................................................................246

2 LWC(LOCAL WIRED CONTROLLER) INTRODUCTION ................................................................................................247

3 LWCS(LOCAL WIRED CONTROLLER SIMPLIFIED) ......................................................................................................278

4 IR-RC(INFRA-RED REMOTE CONTROLLER)..................................................................................................................293

PART VI IDU AND ODU TROUBLESHOOTING.....................................................................................................300

1 FAULT AND PROTECTION CODE LIST ............................................................................................................................301

2 INDOOR UNIT TROUBLESHOOTING ...............................................................................................................................303

3 OUTDOOR UNITS TROUBLESHOOTING .........................................................................................................................324

PART VII APPENDIX.........................................................................................................................................................364

Brand	Airwell
Model	VRF Series
Category	Air Conditioner
Language	English

Airwell VRF Series User Manual

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Airwell VRF Series Specifications

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