Section 0
Samsung Electronics 3
Contents
5. PCB Diagram and Parts List ............................................................................... 5-1
5-1 ASS'Y PCB MAIN ...........................................................................................................................................................5-1
5-2 ASS'Y PCB MAIN-HUB ................................................................................................................................................5-3
5-3 ASS’Y PCB INVERTER ..................................................................................................................................................5-7
5-4 ASS’Y PCB FAN ..............................................................................................................................................................5-9
5-5 ASS’Y PCB EMI .......................................................................................................................................................... 5-11
5-6 SUB-COMM ................................................................................................................................................................ 5-12
6. Wiring Diagram ................................................................................................... 6-1
6-1 M072/096/120/144FXVA66 ...................................................................................................................................6-1
7. Cycle Diagram ...................................................................................................................7-1
7-1 AM072FXVAFH/AM072FXVAJH ..............................................................................................................................7-1
7-2 AM096FXVAJH/AM120FXVAJH ..............................................................................................................................7-1
7-3 AM096FXVAFH/AM120FXVAFH/AM144FXVAFH/AM144FXVAJH ............................................................7-2
7-4 AM072FXVAFR/AM072FXVAJR ...............................................................................................................................7-2
7-5 AM096FXVAJR/AM120FXVAJR ...............................................................................................................................7-3
7-6 AM096FXVAFR/AM120FXVAFR/AM144FXVAFR/AM144FXVAJR ..............................................................7-3
7-7 Cooling operation (H/R) ............................................................................................................................................7-4
7-8 Main cooling operation (H/R) .................................................................................................................................7-5
7-9 Heating operation (H/R) ............................................................................................................................................7-6
7-10 Main heating operation (H/R) ..............................................................................................................................7-7
7-11 Cooling operation (H/P) ..........................................................................................................................................7-8
7-12 Heating operation (H/P) .........................................................................................................................................7-9
7-13 Cycle Component Function Explanation .................................................................................................... 7-10
8. Key Options ......................................................................................................... 8-1
8-1 Outdoor unit option switch settings ...................................................................................................................8-1
8-2 How to set the key function of the outdoor unit ...........................................................................................8-2
8-3 How to check the view mode using a tact switch .........................................................................................8-4
9. Test Operation ..................................................................................................... 9-1
9-1 Auto Trial Operation ....................................................................................................................................................9-1
9-1-1 Auto Trial Operation Synopsis ..................................................................................................................9-1
9-1-2 Auto Trial Operation functions .................................................................................................................9-3
9-1-3 How to troubleshoot of the "Undetermined"....................................................................................9-4
9-1-4 Auto Trial Operation Error Code ........................................................................................................... 9-13
9-2 Amount of refrigerant automatically checking ............................................................................................ 9-14
10. Reference Sheet ..............................................................................................10-1
10-1 Nomenclature .......................................................................................................................................................... 10-1
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