Daikin Modular L Smart Service Manual page 4

ESIE19-06 |
Part 3. Repair ............................................................................................................................39
3.1. Service tools ........................................................................................................................................... 39
3.2. Unit specific repair procedures ............................................................................................................... 40
3.2.1. HRV unit ....................................................................................................................................................... 40
3.2.1.1. Basic removal - removing switchbox cover ..............................................................................................40
3.2.1.2. Removing main PCB ................................................................................................................................42
3.2.1.3. Removing Smart Gateway ....................................................................................................................... 44
3.2.1.4. Basic removal - removing doors and central panel ..................................................................................45
3.2.1.5. Removing heat exchanger ....................................................................................................................... 48
3.2.1.6. Removing EC fan .....................................................................................................................................49
Part 4. Maintenance ..................................................................................................................51
4.1. HRV unit .................................................................................................................................................. 51
4.1.1. Safety precautions for maintenance ............................................................................................................. 51
4.1.2. Ordinary maintenance .................................................................................................................................. 52
4.1.2.1. General information on cleaning procedures ...........................................................................................52
4.1.3. Extraordinary maintenance .......................................................................................................................... 54
4.1.3.1. Replacement of parts ...............................................................................................................................54
4.1.3.2. Consumable components - spare parts ...................................................................................................54
4.1.4. Diagnostics ................................................................................................................................................... 56
4.1.4.1. General diagnostics .................................................................................................................................56
4.1.4.2. Electrical maintenance .............................................................................................................................56
4.1.5. Troubleshooting table ................................................................................................................................... 57
4.1.6. Environmental conditions ............................................................................................................................. 58
4.1.7. Environmental contamination ....................................................................................................................... 58
4.1.8. Noise ............................................................................................................................................................ 58
4.1.9. Ceiling and air duct specifications ................................................................................................................ 58
Part 5. Appendix .......................................................................................................................61
5.1. Field setting ............................................................................................................................................. 63
5.1.1. HRV unit ....................................................................................................................................................... 63
5.1.1.1. Configuration ............................................................................................................................................ 63
5.1.1.2. Modular L Smart performance curves ......................................................................................................68
5.1.1.3. About the user interface ...........................................................................................................................74
5.2. Wiring diagram ........................................................................................................................................ 80
5.2.1. HRV unit ....................................................................................................................................................... 80
5.2.1.1. Legend .....................................................................................................................................................80
5.2.1.2. Unit layout ................................................................................................................................................80
5.2.1.3. Power supply and fan-S fan-R size 02 to 05 ............................................................................................80
5.2.1.4. Fan-S fan-R size 06 and 07 .....................................................................................................................81
5.2.1.5. Control unit board .....................................................................................................................................81
5.2.1.6. Smart Gateway ........................................................................................................................................82
5.2.1.7. Tag list ......................................................................................................................................................82
5.2.1.8. Terminals .................................................................................................................................................83
5.2.1.9. Electrical panel layout ..............................................................................................................................83
5.3. Component overview of unit ................................................................................................................... 84
5.3.1. HRV unit ....................................................................................................................................................... 84
5.4. Switch box ............................................................................................................................................... 85
5.4.1. HRV unit ....................................................................................................................................................... 85
5.5. Spare parts list ........................................................................................................................................ 87
5.6. Field information report ........................................................................................................................... 88
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Modular L Smart
21/01/20 | Version 1.1