72
15.4.19. F91 (Refrigeration Cycle Abnormality)
Malfunction Decision Conditions
• During cooling, compressor frequency = Fcmax.
• During heating, compressor frequency > Fhrated.
• During cooling and heating operation, running current: 0.65A < I < 1.65A.
• During cooling, indoor intake - indoor pipe < 4
°
C
• During heating, indoor pipe - indoor intake < 5
°
C
Multi Models Only
- Gas shortage detection 1: A gas shortage is detected by checking the CT-detected input current value and the compressor
running frequency. During startup and operating of cooling and heating, input current < 8.78/256 (A/Hz) x compressor
running fre 0.25.
- Gas shortage detection 2: A gas shortage is detected by checking the difference between indoor pipe temperature and
indoor intake air temperature during cooling and heating.
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
Содержание CS-NE9LKE
Страница 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control...
Страница 13: ...13 5 Dimensions 5 1 Indoor Unit...
Страница 14: ...14 5 2 Outdoor Unit...
Страница 15: ...15 6 Refrigeration Cycle Diagram...
Страница 16: ...16 7 Block Diagram...
Страница 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit...
Страница 18: ...18 8 2 Outdoor Unit...
Страница 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit...
Страница 20: ...20 9 2 Outdoor Unit...
Страница 21: ...21 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board...
Страница 22: ...22 10 1 2 Power Printed Circuit Board 10 1 3 Indicator Printed Circuit Board...
Страница 23: ...23 10 1 4 Receiver Printed Circuit Board 10 1 5 High Voltage Power Supply Printed Circuit Board...
Страница 24: ...24 10 2 Outdoor Unit...
Страница 80: ...80 16 1 3 To remove discharge grille...
Страница 81: ...81 16 1 4 To remove control board 16 1 5 To remove cross flow fan and indoor fan motor...
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Страница 84: ...84 17 Technical Data 17 1 Operation Characteristics 17 1 1 CU NE9LKE...
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Страница 88: ...88 17 1 2 CU NE12LKE...
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