Part 4 - Electrical Circuit - Daikin ALTHERMA HT ERSQ 011 AA Service Manual

ESIE09-08A

Part 4 - Electrical Circuit

1. Switch Box Layout - Indoor Unit EKHBRD .................................................... 30
2. PCB Layout for EKHBRD 011/014/016 AA/AB/AC V1/Y1 .......................... 34
Refrigerant Circuit
2.1 Main PCB - A1P.................................................................................................34
2.2 Control - PCB - A3P...........................................................................................36
2.3 Inverter PCB - A4P.............................................................................................38
2.4 Filter PCB - A6P.................................................................................................41
2.5 QA PCB - A5P....................................................................................................43
2.6 Inverter Control PCB - Three Phase - A4P ........................................................44
2.7 Inverter PCB - Three Phase - A5P......................................................................46
2.8 Digital I/O PCB (Option PCB A7P)...................................................................48
2.9 Demand PCB (Option PCB A8P).......................................................................50
29