Daikin ARXF25F5V1B Bedienungsanleitung

Daikin Klimaanlage ARXF25F5V1B

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Installer reference guide

R32 split series

ARXF50F5V1B

Table of contents

Installer reference guide

ARXF50F5V1B

R32 split series

4P769827-14D – 2024.08

Table of contents

1 About the documentation 4

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

1.1.1 Meaning of warnings and symbols................................................................................................................ 5

2 General safety precautions 7

2.1 For the installer .............................................................................................................................................................. 7

2.1.1 General........................................................................................................................................................... 7

2.1.2 Installation site............................................................................................................................................... 8

2.1.3 Refrigerant — in case of R410A or R32......................................................................................................... 11

2.1.4 Brine ............................................................................................................................................................... 12

2.1.5 Water ............................................................................................................................................................. 13

2.1.6 Electrical......................................................................................................................................................... 13

2.1.7 Gas.................................................................................................................................................................. 15

2.1.8 Gas exhaust.................................................................................................................................................... 16

2.1.9 Local legislation.............................................................................................................................................. 16

3 Specific installer safety instructions 18

4 About the box 24

4.1 Outdoor unit................................................................................................................................................................... 24

4.1.1 To unpack the outdoor unit........................................................................................................................... 24

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

4.1.3 To remove the accessories from the outdoor unit ....................................................................................... 25

5 About the unit 26

5.1 Identification .................................................................................................................................................................. 26

5.1.1 Identification label: Outdoor unit.................................................................................................................. 26

6 Unit installation 27

6.1 Preparing the installation site ........................................................................................................................................ 27

6.1.1 Installation site requirements of the outdoor unit ....................................................................................... 28

6.1.2 Additional installation site requirements of the outdoor unit in cold climates ........................................... 30

6.2 Opening the unit ............................................................................................................................................................ 31

6.2.1 About opening the unit.................................................................................................................................. 31

6.2.2 To open the outdoor unit .............................................................................................................................. 31

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 ............................................................................................. 32

6.3.3 To provide the installation structure............................................................................................................. 32

6.3.4 To install the outdoor unit............................................................................................................................. 33

6.3.5 To provide drainage....................................................................................................................................... 33

6.3.6 To prevent the outdoor unit from falling over.............................................................................................. 34

7 Piping installation 36

7.1 Preparing refrigerant piping........................................................................................................................................... 36

7.1.1 Refrigerant piping requirements................................................................................................................... 36

7.1.2 Refrigerant piping insulation ......................................................................................................................... 37

7.1.3 Refrigerant piping length and height difference........................................................................................... 37

7.2 Connecting the refrigerant piping.................................................................................................................................. 37

7.2.1 About connecting the refrigerant piping ...................................................................................................... 38

7.2.2 Precautions when connecting the refrigerant piping ................................................................................... 38

7.2.3 Guidelines when connecting the refrigerant piping ..................................................................................... 39

7.2.4 Pipe bending guidelines................................................................................................................................. 40

7.2.5 To flare the pipe end ..................................................................................................................................... 40

7.2.6 Using the stop valve and service port ........................................................................................................... 41

7.2.7 To connect the refrigerant piping to the outdoor unit................................................................................. 42

7.3 Checking the refrigerant piping ..................................................................................................................................... 43

7.3.1 About checking the refrigerant piping .......................................................................................................... 43

7.3.2 Precautions when checking the refrigerant piping....................................................................................... 43

7.3.3 To check for leaks .......................................................................................................................................... 44

7.3.4 To perform vacuum drying ............................................................................................................................ 44

8 Charging refrigerant 46

8.1 About charging refrigerant............................................................................................................................................. 46

8.2 About the refrigerant ..................................................................................................................................................... 47

8.3 Precautions when charging refrigerant ......................................................................................................................... 48

8.4 To determine the additional refrigerant amount.......................................................................................................... 48