Table Of Contents - Daikin VRV III RXYQ5-54PY1 Service Manual

Si34-601A
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.......................................................................................7
Part 2 Specifications .................................................................. 11
1.
Part 3 Refrigerant Circuit ........................................................... 59
1.
2.
3.
Part 4 Function............................................................................ 91
1. Function general ...................................................................................92
2.

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 ........................................................................................12
1.1 Outdoor Units .........................................................................................12
1.2 Indoor Units ............................................................................................33
Refrigerant Circuit .................................................................................60
1.1 RXYQ5P.................................................................................................60
1.2 RXYQ8P.................................................................................................62
1.3 RXYQ10P, 12P
1.4 RXYQ14P, 16P, 18P
1.5 Outdoor air processing unit
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
Refrigerant Flow for Each Operation Mode...........................................74
1.1 Symbol ...................................................................................................92
1.2 Operation Mode......................................................................................93
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
......................................................................................64
..............................................................................66
FXMQ125MFV1~250MFV1........................68
50Hz
i