Daikin VRV RXYQ72-384XAYCA Service Manual page 2

Introduction ....................................................................................... 1
1. Safety Cautions...........................................................................................2
2. Icons Used ..................................................................................................7
3. Revision History .......................................................................................... 8
Part 1 General Information ............................................................... 9
1. Model Names ............................................................................................10
2. External Appearance................................................................................. 13
3. Combination of Outdoor Units...................................................................16
4. Capacity Range......................................................................................... 17
5. Specifications ............................................................................................18
Part 2 Refrigerant Circuit ................................................................ 32
1. Refrigerant Circuit (Piping Diagrams) .......................................................33
2. Functional Parts Layout ............................................................................42
3. Refrigerant Flow for Each Operation Mode...............................................46
Part 3 Remote Controller ................................................................ 50
1. Applicable Models .....................................................................................51
2. Names and Functions ............................................................................... 52
3. Main/Sub Setting....................................................................................... 64
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1.1 Warnings and Cautions Regarding Safety of Workers................................. 2
1.2 Warnings and Cautions Regarding Safety of Users..................................... 4
1.1 Outdoor Unit ............................................................................................... 10
1.2 Indoor Unit.................................................................................................. 11
1.3 Air Treatment Equipment ........................................................................... 12
2.1 Outdoor Unit ............................................................................................... 13
2.2 Indoor Unit.................................................................................................. 14
2.3 Air Treatment Equipment ........................................................................... 15
4.1 Connection Ratio........................................................................................ 17
4.2 Outdoor Unit Combinations ........................................................................ 17
1.1 Outdoor Unit ............................................................................................... 33
1.2 Indoor Unit.................................................................................................. 37
1.3 Indoor Low-Temperature Hydrobox ........................................................... 40
1.4 Outdoor-Air Processing Unit....................................................................... 41
2.1 RXYQ72-120XA, RXYQ72-120XB ............................................................. 42
2.2 RXYQ144/168XA, RXYQ144/168XB ......................................................... 44
3.1 Cooling Operation ...................................................................................... 46
3.2 Heating Operation ...................................................................................... 47
3.3 Cooling Oil Return Operation ..................................................................... 48
3.4 Defrost Heating Oil Return Operation ........................................................ 49
2.1 BRC1E73 ................................................................................................... 52
2.2 BRC1H71W................................................................................................ 55
2.3 Wireless Remote Controller ....................................................................... 63
3.1 BRC1E73 ................................................................................................... 64
SiUS342004EB
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