Daikin REYQ24PY1 [2/438] Basic control 9

Si37-701

Table of Contents i

R-410A Heat Recovery

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

1.3 BS Units .................................................................................................47

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

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

1.1 REYQ8P, 10P, 12P ................................................................................50

1.2 REYQ14P, 16P ......................................................................................52

1.3 REMQ8PY1 (Multi 8HP).........................................................................54

1.4 REMQ10PY1, 12PY1 (Multi 10, 12HP) ..................................................56

1.5 REMQ14PY1, 16PY1 (Multi 14, 16HP)..................................................58

1.6 BS Unit Functional Parts ........................................................................60

1.7 Indoor Units ............................................................................................61

2. Functional Parts Layout ........................................................................62

2.1 REYQ8P, 10P, 12P ................................................................................62

2.2 REYQ14P, 16P ......................................................................................63

2.3 REMQ8P ................................................................................................64

2.4 REMQ10P, 12P......................................................................................65

2.5 REMQ14P, 16P......................................................................................66

3. Refrigerant Flow for Each Operation Mode...........................................67

Part 4 Function............................................................................ 95

1. Function General...................................................................................96

1.1 Symbol ...................................................................................................96

1.2 Operation Mode......................................................................................98

2. Basic Control.........................................................................................99

2.1 Normal Operation ...................................................................................99

2.2 Compressor PI Control.........................................................................100