ESIE09-08ATable of Contents iTable of ContentsTable of Contents ............................................................................ i1. Introduction........................................................................................................vi1.1 Safety Cautions....................................................................................................vi1.2 PREFACE.............................................................................................................xPart 1 - General Information .......................................................... 11. Model Names of Indoor/Outdoor Units & Tanks ............................................... 2Part 2 - Specifications.................................................................... 51. Specifications ...................................................................................................... 61.1 Outdoor Units .......................................................................................................61.2 Indoor Unit............................................................................................................8Part 3 - Refrigerant Circuit & Functional Parts ........................... 111. Refrigerant Circuit ............................................................................................ 121.1 Outdoor Unit.......................................................................................................121.2 Indoor Unit..........................................................................................................142. Functional Parts Layout .................................................................................... 172.1 ERRQ 011/014/016 AAV1, ERSQ 011/014/016 AAV1....................................172.2 ERRQ 011/014/016 AAY1, ERSQ 011/014/016 AAY1....................................192.3 EKHBRD 011/014/016 AA(V1/Y1) ..................................................................212.4 EKHBRD 011/014/016 AB/AC(V1/Y1)............................................................232.5 EKHTS 200/260 A/AB/AC ................................................................................242.6 EKHTSU 200/260 A/AB/AC .............................................................................26Part 4 - Electrical Circuit ............................................................. 291. Switch Box Layout - Indoor Unit EKHBRD .................................................... 302. PCB Layout for EKHBRD 011/014/016 AA/AB/AC V1/Y1 .......................... 342.1 Main PCB - A1P.................................................................................................342.2 Control - PCB - A3P...........................................................................................362.3 Inverter PCB - A4P.............................................................................................382.4 Filter PCB - A6P.................................................................................................412.5 QA PCB - A5P....................................................................................................432.6 Inverter Control PCB - Three Phase - A4P ........................................................442.7 Inverter PCB - Three Phase - A5P......................................................................462.8 Digital I/O PCB (Option PCB A7P)...................................................................482.9 Demand PCB (Option PCB A8P).......................................................................50Part 5 - Function ........................................................................... 531. Operation Mode ................................................................................................ 542. Basic Control..................................................................................................... 55