Samsung AM072/096/120/144FXVAFH, Service Manual

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Section 0
Samsung Electronics 3
Contents
1. Precautions .......................................................................................................... 1-1
1-1 Precautions for the Service ......................................................................................................................................1-1
1-2 Precautions for the Static Electricity and PL .....................................................................................................1-1
1-3 Precautions for the Safety ........................................................................................................................................1-1
1-4 Precautions for Handling Refrigerant for Air Conditioner ..........................................................................1-2
1-5 Precautions for Welding the Air Conditioner Pipe .........................................................................................1-2
1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant ...............................................1-2
1-7 Other Precautions ........................................................................................................................................................1-2
2. Product Specifications ....................................................................................... 2-1
2-1 The Feature of Product ..............................................................................................................................................2-1
2-1-1 Feature ...............................................................................................................................................................2-1
2-1-2 Changes in comparison to basic mode ................................................................................................2-3
2-1-3 Structure of product .................................................................................................................................. 2-10
2-2 Product Specifications ........................................................................................................................................... 2-15
2-2-1 Outdoor Unit ................................................................................................................................................ 2-15
2-3 Accessory and Option Specifications ............................................................................................................... 2-24
2-3-1 Accessories .................................................................................................................................................... 2-24
3. Disassembly and Reassembly ........................................................................... 3-1
3-1 Necessary Tools .............................................................................................................................................................3-1
3-2 Disassembly and Reassembly .................................................................................................................................3-2
3-2-1 AM072FXVA
66
..............................................................................................................................................3-2
3-2-2 AM096FXVAJ
6
/AM120FXVAJ
6
/AM168HXVA
66
/AM192HXVA
66
/096KXVA
66
...... 3-12
3-2-3 AM096FXVAF
6
/AM120FXVAF
6
/AM144FXVA
66
/072KXVA
66
........................................... 3-22
3-2-4 AM216KXVGJ
✳
............................................................................................................................................ 3-33
3-2-5 AM072/096/120HXWA
66
...................................................................................................................... 3-47
3-2-6 AM192HXWA
66
......................................................................................................................................... 3-55
3-3 Caution at compressor exchange ...................................................................................................................... 3-62
3-4 MCU ................................................................................................................................................................................ 3-69
3-5 EEV KIT ........................................................................................................................................................................... 3-70
4. Troubleshooting .................................................................................................. 4-1
4-1 Check-up Window Description ..............................................................................................................................4-1
4-2 PCB Description ............................................................................................................................................................4-2
4-3 Service Operation ........................................................................................................................................................4-3
4-3-1 Special Operation ..........................................................................................................................................4-2
4-3-2 DVM S Models EEPROM Code Table ................................................................................................... 4-13
4-3-3 Number Display Method ........................................................................................................................ 4-13
4-4 Appropriate Measures for Different Symptom ............................................................................................. 4-18
4-4-1 Outdoor Unit Operation Flow ............................................................................................................... 4-18
4-4-2 Main PCB has no power phenomenon ............................................................................................. 4-23
4-4-3 Communication Error between Indoor and Outdoor Units during Tracking.................... 4-26
4-4-4 Communication Error between Indoor and Outdoor Units after Tracking ........................ 4-30
4-4-5 Communication error between main and sub Unit of outdoor unit or between outdoor units .. 4-32
4-4-6 Internal Communication error of the Outdoor Unit C-Box ....................................................... 4-34
4-4-7 Internal PCB Communication error of the Outdoor Unit C-Box.............................................. 4-36
4-4-8 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts ..... 4-39
4-4-9 MCU branch part setup error-Repeated setup for the same address over 3 times ........ 4-40
4-4-10 MCU branch part setup error-non-installed address setup ................................................... 4-41
4-4-11 Setup Error for MCU Branch part – Setup Error for MCU Quantity Used .......................... 4-42
4-4-12 MCUMCU branch part setup error – Overlapping Indoor unit Address setup .............. 4-43
4-4-13 MCU branch part setup error – Set as being used without connection to an Indoor unit .. 4-44