Contents4-5-12 Communication error .......................................................................................................... 4-304-5-13 Compressor start error ........................................................................................................ 4-314-5-14 Compressor lock error ......................................................................................................... 4-324-5-15 DC Link Over voltage/ Low voltage error ........................................................................ 4-334-6 PCB Inspection Method ................................................................................................................... 4-344-6-1 Pre-inspection Notices ........................................................................................................... 4-344-6-2 Inspection Procedure ............................................................................................................ 4-344-6-3 Indoor Detailed Inspection Procedure ............................................................................... 4-344-6-4 Outdoor Detailed Inspection Procedure ........................................................................... 4-354-7 Main Part Inspection Method ......................................................................................................... 4-3615. Exploded Views and Parts List ............................................................................................. 5-15-1 Indoor Unit ......................................................................................................................................... 5-15-2 Outdoor Unit ..................................................................................................................................... 5-75-3 Ass'y Control Out .............................................................................................................................. 5-1116. PCB Diagram ..................................................................................................................................... 6-16-1 PCB Diagram ...................................................................................................................................... 6-16-1-1 Indoor Unit .............................................................................................................................. 6-16-1-2 Outdoor Unit PCB ................................................................................................................... 6-317. Wiring Diagram .............................................................................................................................. 7-16-1 Indoor Unit ......................................................................................................................................... 7-16-1 Outdoor Unit ..................................................................................................................................... 7-218. Schematic Diagram ...................................................................................................................... 8-18-1 Indoor Unit ......................................................................................................................................... 8-18-1-1 MAIN PCB ................................................................................................................................. 8-18-1-2 Outdoor Unit PCB ................................................................................................................... 8-219. Reference Sheet .............................................................................................................................. 9-19-1 Index for Model Name ...................................................................................................................... 9-19-2 Refrigerating Cycle Diagram............................................................................................................ 9-39-3 Pressure Graph ................................................................................................................................... 9-4NS090SDXEA_E_SM_33623A(1)_1.indd 2 2011-04-08 �� 10:54:25