Table Of Contents - Daikin VRV II RXYQ5MATL Service Manual

Si39-504
1. Introduction ............................................................................................ vi
Part 1 General Information ........................................................... 1
1. Model Names of Indoor/Outdoor Units....................................................2
2. External Appearance...............................................................................3
3. Combination of Outdoor Units.................................................................5
4. Model Selection.......................................................................................6
Part 2 Specifications .................................................................... 9
1.
Part 3 Refrigerant Circuit ........................................................... 43
1.
2.
3.
Part 4 Function............................................................................ 65
1. Function general ...................................................................................66
2.
3.

Table of Contents

R-410A Heat Pump
1.1 Safety Cautions ....................................................................................... vi
1.2 PREFACE ................................................................................................x
2.1 Indoor Units ..............................................................................................3
2.2 Outdoor Units ...........................................................................................4
Specifications ........................................................................................10
1.1 Outdoor Units .........................................................................................10
1.2 Indoor Units ............................................................................................21
Refrigerant Circuit .................................................................................44
1.1 RXYQ5MA .............................................................................................44
1.2 RXYQ8MA, 10MA, 12MA
1.3 RXYQ14MA, 16MA
Functional Parts Layout ........................................................................50
2.1 RXYQ5MA..............................................................................................50
2.2 RXYQ8MA, 10MA, 12MA .......................................................................51
2.3 RXYQ14MA, 16MA ................................................................................52
Refrigerant Flow for Each Operation Mode...........................................53
1.1 Symbol ...................................................................................................66
1.2 Operation Mode......................................................................................67
Basic Control.........................................................................................68
2.1 Normal Operation ...................................................................................68
2.2 Compressor PI Control...........................................................................69
2.3 Electronic Expansion Valve PI Control...................................................75
2.4 Step Control of Outdoor Unit Fans .........................................................75
2.5 Outdoor Unit Fan Control in Cooling Operation .....................................76
Special Control......................................................................................77
3.1 Startup Control .......................................................................................77
3.2 Oil Return Operation ..............................................................................78
3.3 Defrosting Operation ..............................................................................80
......................................................................46
...............................................................................48
60Hz
i