Operating Instructions and Installation2 Samsung ElectronicsContents9. Circuit Descriptions ...................................................................................................................... 9-19-1 PCB Circuit Descriptions .................................................................................................................. 9-19-2 Refrigerating Cycle Diagram .......................................................................................................... 9-310. PCB Diagram ..................................................................................................................................... 10-110-1 Indoor PCB ....................................................................................................................................... 10-110-2 Outdoor PCB ................................................................................................................................... 10-211. Operating Instructions .............................................................................................................. 11-111-1 Name of Each Part .......................................................................................................................... 11-111-2 Wireless Remote Control-Buttons and Display ........................................................................ 11-311-3 Main Function ................................................................................................................................. 11-412. Troubleshooting ............................................................................................................................ 12-112-1 Items to be checked first ............................................................................................................... 12-112-2 Fault Diagnosis by Symptom ....................................................................................................... 12-212-3 PCB Inspection Method ................................................................................................................ 12-2512-4 Main Part Inspection Method ...................................................................................................... 12-2713. Block Diagram ................................................................................................................................. 13-113-1 Indoor Unit ...................................................................................................................................... 13-113-2 Outdoor Unit ................................................................................................................................... 13-314. Reference Sheet .............................................................................................................................. 14-114-1 Index for Model Name .................................................................................................................. 14-114-2 Low Refrigerant Pressure Distribution ....................................................................................... 14-214-3 Pressure & Capacity mark ............................................................................................................. 14-314-4 Q & A for Non-trouble ................................................................................................................... 14-414-5 Cleaning/Filter Change ................................................................................................................. 14-714-6 Installation ....................................................................................................................................... 14-914-7 Installation Diagram of Indoor Unit and Outdoor Unit .......................................................... 14-1015.WORKING RANGE .........................................................................................................................15-115-1 Power Supply .............................................................................................................................15-115-2 Working Range..........................................................................................................................15-115-2-1 MULTIZONE/MONOZONE/SUMMIT ...........................................................................15-115-2-2 BIGFLOW................................................................................................................................15-2