Daikin RXD25A5V1B Handleiding

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Installer reference guide

R32 split series

RXD25A5V1B

RXD35A5V1B

Table of contents

Installer reference guide

RXD25+35A5V1B

R32 split series

4P715853-4B – 2024.05

Table of contents

1 About the documentation 4

1.1 About this document...................................................................................................................................................... 4

2 General safety precautions 5

2.1 About the documentation.............................................................................................................................................. 5

2.1.1 Meaning of warnings and symbols................................................................................................................ 5

2.2 For the installer .............................................................................................................................................................. 6

2.2.1 General........................................................................................................................................................... 6

2.2.2 Installation site............................................................................................................................................... 7

2.2.3 Refrigerant — in case of R410A or R32......................................................................................................... 10

2.2.4 Brine ............................................................................................................................................................... 12

2.2.5 Water ............................................................................................................................................................. 12

2.2.6 Electrical......................................................................................................................................................... 13

2.2.7 Gas.................................................................................................................................................................. 14

2.2.8 Gas exhaust.................................................................................................................................................... 15

2.2.9 Local legislation.............................................................................................................................................. 15

3 Specific installer safety instructions 17

4 About the box 23

4.1 Outdoor unit................................................................................................................................................................... 23

4.1.1 To unpack the outdoor unit........................................................................................................................... 23

4.1.2 To handle the outdoor unit ........................................................................................................................... 24

4.1.3 To remove the accessories from the outdoor unit ....................................................................................... 24

5 About the unit 25

5.1 Overview: About the units and options......................................................................................................................... 25

5.2 Identification .................................................................................................................................................................. 25

5.2.1 Identification label: Outdoor unit.................................................................................................................. 25

6 Unit installation 26

6.1 Preparing the installation site ........................................................................................................................................ 26

6.1.1 Installation site requirements of the outdoor unit ....................................................................................... 27

6.1.2 Additional installation site requirements of the outdoor unit in cold climates ........................................... 29

6.2 Opening and closing the unit ......................................................................................................................................... 30

6.2.1 About opening the units................................................................................................................................ 30

6.2.2 To open the outdoor unit .............................................................................................................................. 30

6.2.3 To close the outdoor unit .............................................................................................................................. 30

6.3 Mounting the outdoor unit............................................................................................................................................ 31

6.3.1 About mounting the outdoor unit................................................................................................................. 31

6.3.2 Precautions when mounting the outdoor unit ............................................................................................. 31

6.3.3 To provide the installation structure............................................................................................................. 31

6.3.4 To install the outdoor unit............................................................................................................................. 32

6.3.5 To provide drainage....................................................................................................................................... 32

6.3.6 To prevent the outdoor unit from falling over.............................................................................................. 33

7 Piping installation 34

7.1 Preparing refrigerant piping........................................................................................................................................... 34

7.1.1 Refrigerant piping requirements................................................................................................................... 34

7.1.2 Refrigerant piping insulation ......................................................................................................................... 35

7.1.3 Refrigerant piping length and height difference........................................................................................... 35

7.2 Connecting the refrigerant piping.................................................................................................................................. 35

7.2.1 About connecting the refrigerant piping ...................................................................................................... 35

7.2.2 Precautions when connecting the refrigerant piping ................................................................................... 36

7.2.3 Guidelines when connecting the refrigerant piping ..................................................................................... 37

7.2.4 Pipe bending guidelines................................................................................................................................. 37

7.2.5 To flare the pipe end ..................................................................................................................................... 38

7.2.6 Using the stop valve and service port ........................................................................................................... 38

7.2.7 To connect the refrigerant piping to the outdoor unit................................................................................. 40

7.3 Checking the refrigerant piping ..................................................................................................................................... 40

7.3.1 About checking the refrigerant piping .......................................................................................................... 40

7.3.2 Precautions when checking the refrigerant piping....................................................................................... 41

7.3.3 To check for leaks .......................................................................................................................................... 41

7.3.4 To perform vacuum drying ............................................................................................................................ 42

8 Charging refrigerant 44

8.1 About charging refrigerant............................................................................................................................................. 44