Table Of Contents - Daikin RXYQ72 Serivce Manual

SiUS39-601
1. Introduction ................................................................................................ vi
Part 1 General Information .............................................................. 1
1. Model Names of Indoor/Outdoor Units........................................................2
2. External Appearance...................................................................................3
3. Model Selection...........................................................................................4
Part 2 Specifications ....................................................................... 5
1. Specifications ..............................................................................................6
Part 3 Refrigerant Circuit .............................................................. 23
1. Refrigerant Circuit .....................................................................................24
2. Functional Parts Layout ............................................................................26
3. Refrigerant Flow for Each Operation Mode...............................................27
Part 4 Function............................................................................... 31
1. Operation Mode ........................................................................................32
2. Basic Control.............................................................................................33
3. Special Control..........................................................................................40

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 ............................................................................................... 3
1.1 Outdoor Units ............................................................................................... 6
1.2 Indoor Units ................................................................................................ 11
1.1 RXYQ72M, 96M
2.1 RXYQ72M, 96M ......................................................................................... 26
2.1 Normal Operation ....................................................................................... 33
2.2 Compressor PI Control............................................................................... 34
2.3 Electronic Expansion Valve PI Control....................................................... 38
2.4 Cooling Operation Fan Control................................................................... 39
3.1 Startup Control ........................................................................................... 40
3.2 Oil Return Operation .................................................................................. 41
3.3 Defrosting Operation
3.4 Pump-down Residual Operation ................................................................ 44
3.5 Restart Standby.......................................................................................... 45
3.6 Stopping Operation .................................................................................... 46
......................................................................................... 24
.................................................................................. 43
60Hz
i