83
15.4.24 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
o
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) × compressor running fre 0.25.
o
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-AE9NKE
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 Resistance of Compressor Windings CONNECTION 5RD132XBE21 U V 1 897Ω U W 1 907Ω V W 1 882Ω ...
Страница 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Страница 20: ...20 9 2 Outdoor Unit ...
Страница 22: ...22 10 1 3 Receiver Printed Circuit Board 10 1 4 High Voltage Power Supply Printed Circuit Board ...
Страница 23: ...23 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
Страница 29: ...29 ...
Страница 91: ...91 Figure 3 Figure 4 16 1 1 3 To remove discharge grille Figure 5 ...
Страница 92: ...92 16 1 1 4 To remove control board Figure 6 16 1 1 5 To remove cross flow fan and indoor fan motor Figure 7 ...
Страница 93: ...93 Figure 8 Figure 9 ...
Страница 94: ...94 Figure 10 ...