62
15.4.16 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
Faulty indoor intake air or pipe temperature sensor
2/3 way valve closed
Refrigerant shortage (refrigerant leakage)
Clogged expansion valve or strainer
Faulty outdoor unit
Poor compression of compressor
Troubleshooting
Summary of Contents for CS-CE12NKE
Page 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...
Page 13: ...13 5 Dimensions 5 1 Indoor Unit ...
Page 14: ...14 5 2 Outdoor Unit ...
Page 15: ...15 6 Refrigeration Cycle Diagram ...
Page 16: ...16 7 Block Diagram ...
Page 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Page 18: ...18 8 2 Outdoor Unit ...
Page 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Page 20: ...20 9 2 Outdoor Unit ...
Page 22: ...22 10 2 Outdoor Unit ...
Page 45: ...45 15 3 Error Codes Table ...
Page 46: ...46 ...
Page 74: ...74 17 Technical Data 17 1 Operation Characteristics 17 1 1 CU CE9NKE ...
Page 75: ...75 ...
Page 76: ...76 ...
Page 77: ...77 ...
Page 78: ...78 17 1 2 CU CE12NKE ...
Page 79: ...79 ...
Page 80: ...80 ...
Page 81: ...81 ...