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15.4.17 F90 (Power Factor Correction Protection)
Malfunction Decision Conditions
To maintain DC voltage level supply to power transistor.
To detect high DC voltage level after rectification.
Malfunction Caused
During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at
the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
When DC voltage detected is LOW, transistor switching will turn ON by controller to push-up the DC level.
When DC voltage detected is HIGH (391Vdc – 425Vdc), active LOW signal will send by the controller to turn OFF
relay RY-C.
Troubleshooting
Содержание CS-E9PB4EA
Страница 24: ...24 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control...
Страница 25: ...25 5 Dimensions 5 1 Indoor Unit...
Страница 26: ...26 5 2 Outdoor Unit 5 2 1 CU E9PB4EA 5 2 2 CU E12PB4EA...
Страница 27: ...27 6 Refrigeration Cycle Diagram 6 1 CS E9PB4EA CU E9PB4EA...
Страница 28: ...28 6 2 CS E12PB4EA CU E12PB4EA...
Страница 29: ...29 7 Block Diagram 7 1 CS E9PB4EA CU E9PB4EA...
Страница 30: ...30 7 2 CS E12PB4EA CU E12PB4EA...
Страница 31: ...31 8 Wiring Connection Diagram 8 1 Indoor Unit...
Страница 34: ...34 9 Electronic Circuit Diagram 9 1 Indoor Unit...
Страница 35: ...35 9 2 Outdoor Unit 9 2 1 CU E9PB4EA...
Страница 36: ...36 9 2 2 CU E12PB4EA...
Страница 37: ...37 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board...
Страница 38: ...38 10 1 2 Display Printed Circuit Board...
Страница 39: ...39 10 2 Outdoor Unit 10 2 1 CU E9PB4EA...
Страница 40: ...40 10 2 2 CU E12PB4EA...
Страница 65: ...65 14 3 2 CU E12PB4EA...
Страница 97: ...97 8 Remove the Fan Motor by release the Fan Motor lead wire connectors and Fan Motor screws Fig 8 Fig 8...
Страница 106: ...106 18 Exploded View and Replacement Parts List 18 1 Indoor Unit...