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119
16.4.22 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
Содержание CS-E7NKEW
Страница 21: ...21 Outdoor Unit CU 2E15LBE Outdoor Unit CU 2E18LBE ...
Страница 22: ...22 Outdoor Unit CU 3E18LBE ...
Страница 23: ...23 Outdoor Unit CU 4E23LBE ...
Страница 24: ...24 ...
Страница 25: ...25 Outdoor Unit CU 4E27CBPG ...
Страница 26: ...26 ...
Страница 28: ...28 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...
Страница 29: ...29 5 Dimensions 5 1 Indoor Unit 5 1 1 CS E7NK CS E9NK CS E12NK CS E15NK CS XE7NK CS XE9NK CS XE12NK CS XE15NK ...
Страница 30: ...30 5 1 2 CS E18NK CS E21NK CS XE18NK CS XE21NK ...
Страница 31: ...31 5 2 Outdoor Unit 5 2 1 CU E7NKE CU E9NKE CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 5 2 2 CU E12NKE CU E15NKE ...
Страница 32: ...32 5 2 3 CU E18NKE CU E21NKE ...
Страница 33: ...33 6 Refrigeration Cycle Diagram 6 1 CU E7NKE CU E9NKE CU E12NKE CU E15NKE ...
Страница 34: ...34 6 2 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Страница 35: ...35 6 3 CU E18NKE ...
Страница 36: ...36 6 4 CU E21NKE ...
Страница 37: ...37 7 Block Diagram 7 1 CU E7NKE CU E9NKE ...
Страница 38: ...38 7 2 CU E12NKE ...
Страница 39: ...39 7 3 CU E15NKE ...
Страница 40: ...40 7 4 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Страница 41: ...41 7 5 CU E18NKE CU E21NKE ...
Страница 42: ...42 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Страница 43: ...43 8 2 Outdoor Unit 8 2 1 CU E7NKE CU E9NKE ...
Страница 44: ...44 8 2 2 CU E12NKE ...
Страница 45: ...45 8 2 3 CU E15NKE ...
Страница 46: ...46 8 2 4 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Страница 47: ...47 8 2 5 CU E18NKE CU E21NKE ...
Страница 48: ...48 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Страница 49: ...49 9 2 Outdoor Unit 9 2 1 CU E7NKE CU E9NKE ...
Страница 50: ...50 9 2 2 CU E12NKE ...
Страница 51: ...51 9 2 3 CU E15NKE ...
Страница 52: ...52 9 2 4 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Страница 53: ...53 9 2 5 CU E18NKE CU E21NKE ...
Страница 54: ...54 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Страница 56: ...56 10 1 5 Human Activity Sensor Printed Circuit Board ...
Страница 57: ...57 10 2 Outdoor Unit 10 2 1 CU E7NKE CU E9NKE CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Страница 58: ...58 10 2 2 CU E12NKE CU E15NKE ...
Страница 59: ...59 10 2 3 CU E18NKE CU E21NKE ...
Страница 96: ...96 16 3 Error Codes Table ...
Страница 97: ...97 ...
Страница 127: ...127 17 1 1 3 To remove discharge grille ...
Страница 128: ...128 17 1 1 4 To remove control board 17 1 1 5 To remove cross flow fan and indoor fan motor ...
Страница 129: ...129 ...
Страница 131: ...131 17 2 1 3 To remove power electronic controller ...
Страница 133: ...133 ...