Table Of Contents - Samsung AHU Series Service Manual

Contents
1. Precautions ........................................................................................................ 1-1
1-1 Precautions for the Service..............................................................................................................................
1-2 Precautions for the Static Electricity and PL .............................................................................................
1-3 Precautions for the Safety ................................................................................................................................
1-4 Other ........................................................................................................................................................................
2. Product Specifications ...................................................................................... 2-1
2-1 The Feature of Product .....................................................................................................................................
2-2 Product Specifications ......................................................................................................................................
2-3 Specifications of optional items ....................................................................................................................
2-3-1 Accessories .................................................................................................................................................
3. Disassembly and Reassembly .......................................................................... 3-1
3-1 Indoor unit .....................................................................................................................................................
3-2 Outdoor Unit .................................................................................................................................................
4. Troubleshooting ............................................................................................... 4-1
4-1 Indoor Display Error and Check Method ...................................................................................................
4-1-1 Indoor unit LED lamp display at error detecting ........................................................................
4-1-2 Wired Remocon Error Display ............................................................................................................
4-2 Troubleshooting by symptoms .....................................................................................................................
4-2-1 Indoor temperature sensor (open/short) ......................................................................................
4-2-2 Eva in and out sensor (open/short) ..................................................................................................
4-2-3 Fan error ...................................................................................................................................................... 4-13
4-2-4 Terminal Block's Terminal Fuse(Open) ........................................................................................... 4-14
4-2-5 Outdoor's service valve(Clog)
4-2-6 EEPROM error
4-2-7 Option error
4-3 Setting the indoor unit option code ........................................................................................................... 4-12
4-3-1 Setting an indoor unit address and installation option .......................................................... 4-12
4-4 Items to be checked first .................................................................................................................................. 4-23
5. PCB Diagram and Parts List.............................................................................. 5-1
5-1 Indoor Unit .............................................................................................................................................................
5-1-1 MAIN PCB Diagram .................................................................................................................................
5-2 Outdoor Unit .........................................................................................................................................................
5-2-1 MAIN PCB ....................................................................................................................................................
5-2-2 SUB PCB .......................................................................................................................................................
5-2-3 MAIN PCB ....................................................................................................................................................
5-2-4 INVERTER PCB ...........................................................................................................................................
5-2-5 EMI PCB........................................................................................................................................................
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Section 0
1-1
1-1
1-1
1-2
2-1
2-2
2-4
2-4
3-2
3-7
4-1
4-1
4-2
4-4
4-4
4-5
5-1
5-1
5-3
5-3
5-5
5-6
5-7
5-9
1