Daikin BPMKS048A2U

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SiUS181305E

ii Table of Contents

Safety Considerations ..................................................................... vii

Part 1 List of Functions ................................................................... 1

1. Functions.....................................................................................................2

1.1 Outdoor Unit ................................................................................................. 2

1.2 Indoor Unit.................................................................................................... 3

Part 2 Specifications........................................................................ 5

1. Specifications ..............................................................................................6

1.1 Outdoor Unit ................................................................................................. 6

1.2 Branch Provider (BP) Unit ............................................................................ 6

1.3 Indoor Unit.................................................................................................... 7

Part 3 Printed Circuit Board

Connector Wiring Diagram .................................................. 13

1. Outdoor Unit..............................................................................................14

1.1 RMXS48LVJU ............................................................................................ 14

2. Branch Provider (BP) Unit.........................................................................17

2.1 BPMKS048A2U, BPMKS049A3U .............................................................. 17

3. Indoor Unit................................................................................................18

3.1 CTXS07LVJU ............................................................................................. 18

3.2 CTXS07JVJU, CTXS09/12HVJU ............................................................... 20

3.3 FTXS15/18/24LVJU ................................................................................... 22

3.4 FDXS09/12LVJU, CDXS15/18/24LVJU ..................................................... 24

3.5 FFQ09/12/15/18LVJU ................................................................................ 26

4. Wired Remote Controller...........................................................................27

4.1 BRC1E72 ................................................................................................... 27

5. Wireless Remote Controller ......................................................................28

5.1 BRC7E830 ................................................................................................. 28

Part 4 Refrigerant Circuit............................................................... 30

1. Refrigerant Circuit .....................................................................................31

1.1 Outdoor Unit ............................................................................................... 31

1.2 Branch Provider (BP) Unit .......................................................................... 32

2. Functional Parts Layout ............................................................................33

3. Refrigerant Flow for Each Operation Mode...............................................35

3.1 Cooling Operation ...................................................................................... 35

3.2 Heating Operation ...................................................................................... 36

3.3 Cooling Oil Return Operation ..................................................................... 37

3.4 Heating Oil Return Operation & Defrost Operation .................................... 38

Daikin BPMKS048A2U - Page 3