Daikin RXYSQ5PA7V1B [2/282] List of electrical and functional parts 0

SiBE34-802

Table of Contents i

R-410A

Heat Pump

50Hz

1. Introduction ............................................................................................v

1.1 Safety Cautions ........................................................................................v

1.2 PREFACE ............................................................................................... ix

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

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

2. External Appearance...............................................................................3

2.1 Indoor Units ..............................................................................................3

3. Capacity Range.......................................................................................4

Part 2 Specifications .................................................................... 5

1. Specifications ..........................................................................................6

1.1 Outdoor Units ...........................................................................................6

1.2 Indoor Units ............................................................................................10

Part 3 List of Electrical and Functional Parts............................ 29

1. List of Electrical and Functional Parts ...................................................30

1.1 Outdoor Unit ...........................................................................................30

1.2 Indoor Unit..............................................................................................32

Part 4 Refrigerant Circuit ........................................................... 39

1. Refrigerant Circuit .................................................................................40

1.1 Outdoor Unit...........................................................................................40

2. Functional Parts Layout ........................................................................44

2.1 RXYSQ4 / 5 / 6PA7Y1B .........................................................................44

2.2 RXYSQ4 / 5 / 6PA7V1B .........................................................................45

Part 5 Function............................................................................ 47

1. Operation Mode ....................................................................................48

2. Basic Control.........................................................................................49

2.1 Normal Operation ...................................................................................49

2.2 Compressor PI Control...........................................................................50

2.3 Electronic Expansion Valve PI Control...................................................51

2.4 Cooling Operation Fan Control...............................................................52

3. Special Control......................................................................................53

3.1 Startup Control .......................................................................................53

3.2 Oil Return Operation ..............................................................................54

3.3 Defrosting Operation ..............................................................................56

3.4 Pump-down Residual Operation ............................................................57