Contents
1. Precautions.................................................................................................................3
1-1 Precautions for the Service ..................................................................................................................................................3
1-2 Precautions related to static electricity and PL ..........................................................................................................3
1-3 Precautions for the Safety ....................................................................................................................................................4
1-4 Precautions for handling a system containing refrigerants .................................................................................5
1-5 Precautions for the brazing .................................................................................................................................................5
1-6 Precautions for charging refrigerants .............................................................................................................................5
2. General Overview ......................................................................................................6
2-1 Features of the System ..........................................................................................................................................................6
2-2 Product Specifications ...........................................................................................................................................................8
2-3 Specifications of optional items.....................................................................................................................................16
3. Disassembly and Reassembly ............................................................................... 18
3-1 Tank Integrated Hydro Unit ..............................................................................................................................................19
3-2 Outdoor Unit...........................................................................................................................................................................24
4. Troubleshooting ..................................................................................................... 74
4-1 Wired remote controller ....................................................................................................................................................74
4-2 Troubleshooting by symptoms ......................................................................................................................................77
4-3 Hydro Unit ...............................................................................................................................................................................78
4-4 Items to check before diagnostics ...............................................................................................................................84
4-5 Troubleshooting by symptoms .....................................................................................................................................85
5. PCB Diagram ......................................................................................................... 100
5-1 Tank Integrated Hydro Unit ...........................................................................................................................................100
5-2 Outdoor Unit........................................................................................................................................................................102