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ESIE09-08B

Table of Contents i

Table of Contents

Table of Contents ............................................................................ i

1. Introduction ............................................................................................ vi

1.1 Safety Cautions ....................................................................................... vi

1.2 PREFACE ................................................................................................x

Part 1 - General Information .......................................................... 1

1. Model Names of Indoor/Outdoor Units & Tanks .....................................2

Part 2 - Specifications.................................................................... 4

1. Specifications ..........................................................................................5

Part 3 - Refrigerant Circuit & Functional Parts ............................. 7

1. Refrigerant Circuit ...................................................................................8

1.1 Outdoor Unit .............................................................................................8

1.2 Indoor Unit..............................................................................................10

2. Functional Parts Layout ........................................................................14

2.1 ERRQ 011/014/016 AAV1, ERSQ 011/014/016 AAV1 ..........................14

2.2 ERRQ 011/014/016 AAY1, ERSQ 011/014/016 AAY1 ..........................16

2.3 EKHBRD 011/014/016 AA(V1/Y1) .........................................................18

2.4 EKHBRD 011/014/016 AB/AC(V1/Y1) ...................................................20

2.5 EKHBRD 011/014/016 AC/AD(V1/Y1) ...................................................21

2.6 EKHTS 200/260 A/AB/AC ......................................................................22

2.7 EKHTSU 200/260 A/AB/AC....................................................................24

Part 4 - Electrical Circuit ............................................................. 27

1. Switch Box Layout - Indoor Unit EKHBRD............................................28

2. PCB Layout for EKHBRD 011/014/016 AA/AB/AC/AD V1/Y1 ..............32

2.1 Main PCB - A1P .....................................................................................32

2.2 Control - PCB - A3P ...............................................................................34

2.3 Inverter PCB - A4P.................................................................................36

2.4 Filter PCB - A6P .....................................................................................38

2.5 QA PCB - A5P........................................................................................40

2.6 Inverter Control PCB - Three Phase - A4P ............................................41

2.7 Inverter PCB - Three Phase - A5P .........................................................42

2.8 Digital I/O PCB (Option PCB A7P) .........................................................43

2.9 Demand PCB (Option PCB A8P) ...

........................................................44

Type	Air-to-water heat pump
Refrigerant	R-410A
Water Outlet Temperature	Up to 80°C
Operating Temperature Range	-20°C to 35°C
Power Supply	3-phase, 400V
Energy Efficiency Class (Heating)	A++

Daikin Altherma HT Service Manual

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