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
2-1-1 Key features of the Monobloc ..........................................................................................................................7
2-2 Product Specifications ...................................................................................................................................................8
2-2-1 MONO Unit ...............................................................................................................................................................8
2-3 Specifications of optional items ................................................................................................................................9
2-3-1 Accessories ................................................................................................................................................................9
3. Disassembly and Reassembly
.........................................................................................................................
11
3-1 EHS Control Kit ...............................................................................................................................................................12
3-2 Outdoor Unit ...................................................................................................................................................................14
4. Troubleshooting
.............................................................................................................................................................
23
4-1 Wired remote controller .............................................................................................................................................23
4-2 Troubleshooting by symptoms ..............................................................................................................................26
4-2-1 Communication error after finishing Tracking ......................................................................................26
4-3 Control Kit ........................................................................................................................................................................27
4-3-1 EEPROM error .....................................................................................................................................................27
4-3-2
: Error due to abnormal data of Wired remote controller thermistor value ............................28
4-3-3
: Error due to abnormal data of Water outlet thermistor value ..............................29
4-3-4
: Error due to abnormal data of DHW tank thermistor value ...................................30
4-3-5 Control Kit temperature sensor(open/short) ........................................................................................31
4-3-6 Communication error after finishing Tracking(Hydro unit) ............................................................32
4-4 Items to check before diagnostics .......................................................................................................................33
4-4-1 Test run mode and view mode ....................................................................................................................33
4-4-2 Troubleshooting for outdoor unit ..............................................................................................................34
4-5 Troubleshooting by symptoms .............................................................................................................................36
4-5-1 Communication error after finishing tracking (E202) ........................................................... 36
4-5-2 Time out (1min.) of communication error between MAIN PBA and INV. PBA (E203) ............ 37
