Samsung AC024BXUPCH Service Manual page 3

Contents
4-2-23. IPM(IGBT Module) heat sink error - (E474), IPM overheat error - (E500) ................................4-29
4-2-24. Input current sensor error (Short/Open) - (E485) .......................................................................4-29
4-2-25. Error due to high pressure switch open or compressor down by high pressure - (E507) .... 4-30
4-4-26. Gas leakage error - (E554) ................................................................................................................ 4-31
4-2-27. Blockage deteced on high pressure pipe duing heating operation - (E534) ...........................4-33
5. PCB Diagram and Parts List ........................................................................................ 5-1
5-1. Outdoor Unit Main PBA ................................................................................................................................... 5-1
5-2. Outdoor Unit Inverter PBA ............................................................................................................................. 5-3
5-3. Outdoor Unit EMI PBA ..................................................................................................................................... 5-5
5-4. AHU Control Unit PBA ..................................................................................................................................... 5-6
6. Wiring Diagram ........................................................................................................... 6-1
6-1. Outdoor Unit ...................................................................................................................................................... 6-1
6-2. AHU Control Unit ............................................................................................................................................. 6-2
7. Reference Sheet ...........................................................................................................7-1
7-1. Index for Model Name ......................................................................................................................................7-1
7-1-1. Outdoor Unit ..............................................................................................................................................7-1
7-1-2. Outdoor Unit ............................................................................................................................................ 7-2
7-2. Refrigerating Cycle Diagram ......................................................................................................................... 7-3