Daikin ARXD25A5V1B Bruksanvisning

Daikin Luftkonditionering ARXD25A5V1B

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Installer reference guide

R32 split series

ARXD25A5V1B

ARXD35A5V1B

Table of contents

Installer reference guide

ARXD25+35A5V1B

R32 split series

4P715853-2 – 2023.01

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 ................................................................................................................................. 38

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