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Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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TABLE OF CONTENTS
GENERAL INFORMATION...................................................................................................................................................................3
Model Number of Outdoor Unit / Indoor Unit........................................................................................................................................3
Connected Capacity Ratio Restrictions...................................................................................................................................................4
External Appearance...............................................................................................................................................................................5
Piping Design..........................................................................................................................................................................................6
Refrigerant Charge Calculation.............................................................................................................................................................12
REFRIGERANT CIRCUIT....................................................................................................................................................................13
Refrigerant Circuit.................................................................................................................................................................................14
Refrigerant flow for Each Operation Mode...........................................................................................................................................15
FIELD WIRING.......................................................................................................................................................................................18
Typical Power Supply Wiring ............................................................................................................................................................. 19
Typical Control Wiring ........................................................................................................................................................................ 20
FUNCTION AND CONTROL................................................................................................................................................................23
Basic Control........................................................................................................................................................................................ 24
Special Control..................................................................................................................................................................................... 28
Oil Return Operation............................................................................................................................................................................ 29
Defrost Control......................................................................................................................................................................................30
Protection Control................................................................................................................................................................................. 31
TROUBLESHOOTING..........................................................................................................................................................................32
Service Diagnosis................................................................................................................................................................................. 32
Electrical Components and Wiring Diagrams...................................................................................................................................... 33
Troubleshooting from Outdoor Unit..................................................................................................................................................... 36
APPENDIX...............................................................................................................................................................................................59
BILL OF MATERIAL (BOM)................................................................................................................................................................62