Daikin RXYQ14MAY1 [2/352] Part 2 specifications

SiE39-407

Table of Contents i

R410A Heat Pump

50Hz

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

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

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

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

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

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

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

2.2 Outdoor Units ...........................................................................................4

3. Combination of Outdoor Units.................................................................5

4. Model Selection.......................................................................................6

Part 2 Specifications .................................................................... 9

1. Specifications ........................................................................................10

1.1 Outdoor Units .........................................................................................10

1.2 Indoor Units ............................................................................................21

Part 3 Refrigerant Circuit ........................................................... 49

1. Refrigerant Circuit .................................................................................50

1.1 RXYQ5MA .............................................................................................50

1.2 RXYQ8MA, 10MA, 12MA ......................................................................52

1.3 RXYQ14MA, 16MA ...............................................................................54

1.4 Outdoor air processing unit FXMQ125MFV1~250MFV1........................56

2. Functional Parts Layout ........................................................................57

2.1 RXYQ5MA..............................................................................................57

2.2 RXYQ8MA, 10MA, 12MA .......................................................................58

2.3 RXYQ14MA, 16MA ................................................................................59

3. Refrigerant Flow for Each Operation Mode...........................................60

Part 4 Function............................................................................ 73

1. Function general ...................................................................................74

1.1 Symbol ...................................................................................................74

1.2 Operation Mode......................................................................................75

2. Basic Control.........................................................................................76

2.1 Normal Operation ...................................................................................76

2.2 Compressor PI Control...........................................................................77

2.3 Electronic Expansion Valve PI Control...................................................83

2.4 Step Control of Outdoor Unit Fans .........................................................83

2.5 Outdoor Unit Fan Control in Cooling Operation .....................................84

3. Special Control......................................................................................85

3.1 Startup Control .......................................................................................85

3.2 Oil Return Operation ..............................................................................86