78
14.4.15 F91 (Refrigeration Cycle Abnormality)
Malfunction Decision Conditions
During cooling, compressor frequency = Fcmax.
During cooling and heating operation, running current: 0.65A < I < 1.65A.
During cooling, indoor intake - indoor pipe < 4°C.
Malfunction Caused
Refrigerant shortage (refrigerant leakage)
Poor compression performance of compressor.
2/3 way valve closed.
Detection error due to faulty indoor intake air or indoor pipe temperature sensors.
Troubleshooting
Summary of Contents for CS-PS9NKH
Page 13: ...13 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control...
Page 14: ...14 4 Dimensions 4 1 Indoor Unit 4 1 1 CS PS9NKH CS PS12NKH CS PS18NKH...
Page 15: ...15 4 1 2 CS PS24NKH...
Page 16: ...16 4 2 Outdoor Unit 4 2 1 CU PS9NKH CU PS12NKH 4 2 2 CU PS18NKH...
Page 17: ...17 4 2 3 CU PS24NKH...
Page 18: ...18 5 Refrigeration Cycle Diagram 5 1 CS PS9NKH CU PS9NKH CS PS12NKH CU PS12NKH...
Page 19: ...19 5 2 CS PS18NKH CU PS18NKH CS PS24NKH CU PS24NKH...
Page 20: ...20 6 Block Diagram 6 1 CS PS9NKH CU PS9NKH...
Page 21: ...21 6 2 CS PS12NKH CU PS12NKH...
Page 22: ...22 6 3 CS PS18NKH CU PS18NKH...
Page 23: ...23 6 4 CS PS24NKH CU PS24NKH...
Page 24: ...24 7 Wiring Connection Diagram 7 1 Indoor Unit 7 1 1 CS PS9NKH CS PS18NKH CS PS24NKH...
Page 25: ...25 7 1 2 CS PS12NKH...
Page 30: ...30 8 Electronic Circuit Diagram 8 1 Indoor Unit 8 1 1 CS PS9NKH CS PS18NKH CS PS24NKH...
Page 31: ...31 8 1 2 CS PS12NKH...
Page 32: ...32 8 2 Outdoor Unit 8 2 1 CU PS9NKH...
Page 33: ...33 8 2 2 CU PS12NKH...
Page 34: ...34 8 2 3 CU PS18NKH...
Page 35: ...35 8 2 4 CU PS24NKH...
Page 37: ...37 9 1 1 2 CS PS12NKH 9 1 2 Indicator Printed Circuit Board...
Page 38: ...38 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board 9 2 1 1 CU PS9 12NKH...
Page 39: ...39 9 2 1 2 CU PS18NKH...
Page 40: ...40 9 2 1 3 CU PS24NKH...
Page 41: ...41 9 2 2 Noise Filter Printed Circuit Board 9 2 2 1 CU PS9NKH CU PS12NKH...
Page 47: ...47 10 2 5 Wire Stripping And Connecting Requirement...
Page 92: ...92 Figure 19 Figure 20...