Download SYSTEM AIR CONDITIONER

Section 0
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.....................................................................................................................................2-6
2-2 Product Specifications ..............................................................................................................................................2-7
2-2-1 Outdoor Unit ...................................................................................................................................................2-7
2-3 Accessory and Option Specifications ............................................................................................................... 2-11
2-3-1 Accessories .................................................................................................................................................... 2-11
3. Disassembly and Reassembly ........................................................................... 3-1
3-1 Necessary Tools .............................................................................................................................................................3-1
3-2 Disassembly and Reassembly .................................................................................................................................3-2
3-2-1 AM072FXVA66 ..............................................................................................................................................3-2
3-2-2 AM096FXVAJ6/AM120FXVAJ6............................................................................................................ 3-12
3-2-3 AM096FXVAF6/AM120FXVAF6/AM144FXVA66 ........................................................................ 3-22
3-3 Caution at compressor exchange ...................................................................................................................... 3-33
3-4 MCU ................................................................................................................................................................................ 3-35
3-5 EEV KIT ........................................................................................................................................................................... 3-36
4. Troubleshooting.................................................................................................. 4-1
4-1 Check-up Window Description ..............................................................................................................................4-1
4-2 Service Operation ........................................................................................................................................................4-2
4-2-1 Special Operation ..........................................................................................................................................4-2
4-2-2 DVM S Models EEPROM Code Table ......................................................................................................4-7
4-2-3 Number Display Method ...........................................................................................................................4-7
4-3 Appropriate Measures for Different Symptom ............................................................................................. 4-12
4-3-1 Outdoor Unit Operation Flow ............................................................................................................... 4-12
4-3-2 Main PCB has no power phenomenon ............................................................................................. 4-15
4-3-3 Communication Error between Indoor and Outdoor Units during Tracking.................... 4-16
4-3-4 Communication Error between Indoor and Outdoor Units after Tracking ........................ 4-18
4-3-5 Communication error between main and sub Unit of outdoor unit or between outdoor units.. 4-19
4-3-6 Internal Communication error of the Outdoor Unit C-Box ....................................................... 4-20
4-3-7 Internal PCB Communication error of the Outdoor Unit C-Box.............................................. 4-21
4-3-8 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts ..... 4-23
4-3-9 MCU branch part setup error-Repeated setup for the same address over 3 times........ 4-24
4-3-10 MCU branch part setup error-non-installed address setup ................................................... 4-25
4-3-11 Setup Error for MCU Branch part – Setup Error for MCU Quantity Used.......................... 4-26
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