Daikin RWEYQ28PY1 [2/342] Part 3 refrigerant circuit 5

Si30-813

Table of Contents i

Water Cooled

Heat Pump / Heat Recovery

50/60Hz

1. Introduction ............................................................................................vi

1.1 Safety Cautions ....................................................................................... vi

1.2 PREFACE ................................................................................................x

Part 1 General Information ........................................................... 1

1. Features..................................................................................................2

1.1 Design Flexibility ......................................................................................4

1.2 Easy Installation .......................................................................................6

1.3 Energy Saving ..........................................................................................7

1.4 Enhanced Usability...................................................................................8

2. Model Names of Indoor / Outside Units ................................................10

3. External Appearance.............................................................................11

3.1 Indoor Units ............................................................................................11

3.2 Outside Units..........................................................................................12

4. Combination of Outside Units ...............................................................13

5. Capacity Range.....................................................................................14

Part 2 Specifications .................................................................. 15

1. Specifications ........................................................................................16

1.1 50Hz .......................................................................................................16

1.2 60Hz .......................................................................................................19

1.3 BS Units .................................................................................................20

1.4 Indoor Units ............................................................................................21

Part 3 Refrigerant Circuit ........................................................... 45

1. Refrigerant Circuit .................................................................................46

1.1 RWEYQ8P, 10P .....................................................................................46

1.2 BS Unit Functional Parts ........................................................................48

2. Functional Parts Layout ........................................................................49

2.1 RWEYQ8P, 10P .....................................................................................49

3. Refrigerant Flow for Each Operation Mode...........................................51

3.1 In Case of Heat Pump Connection.........................................................51

3.2 In Case of Heat Recovery Connection

(One Outside Unit Installation) ...............................................................53

3.3 In Case of Heat Recovery Connection

(3 Outside Units Connection) .................................................................57