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. CAC Single ...........................................................................................................................................................2-1
2-2. The Feature of Product .................................................................................................................................... 2-2
2-2-1. Features (Wind-Free 1Way CST) ..................................................................................................... 2-2
2-3. The Feature of Product .................................................................................................................................... 2-3
2-3-1. Features (Wind-Free 4Way CST) .....................................................................................................2-3
2-4. Features & Benefits ......................................................................................................................................... 2-8
2-4-1. 4Way Cassette (600 x 600) .............................................................................................................2-8
2-4-2. 4Way Cassette (600 x 600) - Tasteful design, Compact, Lightweight build .......................... 2-8
2-4-3. 360 Cassette
.................................................................................................................................... 2-10
2-4-4. Duct S ................................................................................................................................................ 2-12
2-4-5. Wall Mount Type ............................................................................................................................. 2-13
2-4-6. Wall Mounted Wind Free - Wind Free, Auto Clean
................................................................... 2-14
2-5. Product Specifications .................................................................................................................................. 2-15
2-6. Specifications of optional items ................................................................................................................. 2-40
2-6-1. Accessories ...................................................................................................................................... 2-40
3. Disassembly and Reassembly.................................................................................... 3-1
3-1. Indoor unit ......................................................................................................................................................... 3-2
3-2. Outdoor unit .................................................................................................................................................... 3-85
4. Troubleshooting ......................................................................................................... 4-1
4-1. Setting an indoor unit address and installation option ............................................................................ 4-1
4-1-1. The procedure of setting option...................................................................................................... 4-1
4-1-2. The procedure of setting option
.....................................................................................................4-2
4-1-3. Order for Setting Options (Wired Remote Controller) .............................................................4-10
4-1-4. Setting the indoor unit addresses ................................................................................................ 4-11
4-1-5. Setting an indoor unit installation option
(Suitable for the condition of each installation location) ....................................................... 4-12
4-1-6. Changing the addresses and options individually ................................................................... 4-32
4-1-7. Emergency Temperature Output (ETO) function ..................................................................... 4-33
4-2. Model-specific option code ..........................................................................................................................4-35
4-3. Diagnostic Checklist ...................................................................................................................................... 4-41
4-3-1. Test operation mode and check mode ........................................................................................4-41
4-3-2. Error code [indoor]
.........................................................................................................................4-47
4-4. Troubleshooting by symptoms ................................................................................................................... 4-56
4-4-1. Indoor temperature sensor error (E121) ..................................................................................... 4-56
4-4-2. Indoor heat exchanger temperature sensor error (E122) ........................................................ 4-57
4-4-3. Indoor unit float sensor error (E153)
.......................................................................................... 4-58
4-4-4. Indoor Fan error (E154) ................................................................................................................. 4-59
4-4-5. EEPROM circuit failure (E162)...................................................................................................... 4-60
4-4-6. Communication error after finishing Tracking (E202)
............................................................. 4-61
4-4-7. The whistling noise from the indoor unit in low wind mode ................................................. 4-62
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