21.7 Air velocity and temperature distribution ........................................................................530
21.8 Sound pressure level .....................................................................................................532
21.9 Installation .....................................................................................................................533
22. HRV .................................................................................................................................. 550
22.1 Product introduction .......................................................................................................550
22.2 Function description .......................................................................................................551
22.3 Operation principle .........................................................................................................552
22.4 Features .........................................................................................................................553
22.5 Specication ...................................................................................................................559
22.6 Dimension ......................................................................................................................561
22.7 Wiring diagram ...............................................................................................................562
22.8 Installation ......................................................................................................................563
23. Dip Switch Setting ............................................................................................................. 577
23.1 0151800113 PCB dip switch setting ..............................................................................577
23.2 0151800161 PCB dip switch setting ..............................................................................583
23.3 0151800161C PCB dip switch setting ............................................................................586
23.4 0151800161B PCB dip switch setting ............................................................................589
23.5 0010451181A PCB dip switch setting ...........................................................................592
23.6 0151800086 PCB dip switch setting .............................................................................598
23.7 0151800086A PCB dip switch setting ...........................................................................600
23.8 0010451751AF and 0151800141A PCB dip switch setting ...........................................602
23.9 0010451751AE and 0151800141 PCB dip switch setting .............................................606
23.10 0151800227 PCB dip switch setting ............................................................................610
23.11 0151800227A PCB dip switch setting ..........................................................................613
23.12 0151800244 PCB dip switch setting ............................................................................616
23.13 0151800244B PCB dip switch setting ..........................................................................619
23.14 0151800244BA PCB dip switch setting ........................................................................622
24. Indoor Unit Control ............................................................................................................ 625
25. Failure Code ..................................................................................................................... 628
26. Troubleshooting ................................................................................................................ 634
27. Controller match table ....................................................................................................... 641
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