Daikin RXYQ14PY1 [2/398] Functional parts layout 9

Si34-601A

Table of Contents i

R-410A 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.......................................................................................7

Part 2 Specifications .................................................................. 11

1. Specifications ........................................................................................12

1.1 Outdoor Units .........................................................................................12

1.2 Indoor Units ............................................................................................33

Part 3 Refrigerant Circuit ........................................................... 59

1. Refrigerant Circuit .................................................................................60

1.1 RXYQ5P.................................................................................................60

1.2 RXYQ8P.................................................................................................62

1.3 RXYQ10P, 12P ......................................................................................64

1.4 RXYQ14P, 16P, 18P ..............................................................................66

1.5 Outdoor air processing unit FXMQ125MFV1~250MFV1........................68

2. Functional Parts Layout ........................................................................69

2.1 RXYQ5P.................................................................................................69

2.2 RXYQ8P.................................................................................................70

2.3 RXYQ10P, 12P (12P: EUROPE) ...........................................................71

2.4 RXYQ12P...............................................................................................72

2.5 RXYQ14P, 16P, 18P ..............................................................................73

3. Refrigerant Flow for Each Operation Mode...........................................74

Part 4 Function............................................................................ 91

1. Function general ...................................................................................92

1.1 Symbol ...................................................................................................92

1.2 Operation Mode......................................................................................93

2. Basic Control.........................................................................................94

2.1 Normal Operation ...................................................................................94

2.2 Compressor PI Control...........................................................................95

2.3 Electronic Expansion Valve PI Control.................................................107

2.4 Step Control of Outdoor Unit Fans .......................................................107

2.5 Outdoor Unit Fan Control in Cooling Operation ...................................108