Daikin RXM20N2V1B9 Handleiding

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Installer reference guide

R32 split series

ARXM50N2V1B9

ARXM60N2V1B9

ARXM71N2V1B9

RXM42N2V1B9

RXM50N2V1B9

RXM60N2V1B9

RXM71N2V1B

RXP50M2V1B

RXP60M2V1B

RXP71M2V1B

RXA42B2V1B

RXA50B2V1B

RXF50B2V1B

RXF60B2V1B

RXF71A2V1B

RXJ50N2V1B

ARXF50A2V1B

ARXF60A2V1B

ARXF71A2V1B

Table of contents

Installer reference guide

ARXM50~71+RXM42~71N2V1B(9) + RXP50~71M2V1B +

RXA42+50+RXF50+60B2V1B + RXF71A2V1B + RXJ50N2V1B +

ARXF50~71A2V1B

R32 split series

4P513661-7H – 2019.12

Table of contents

1 General safety precautions 4

1.1 About the documentation .............................................................................................................................................. 4

1.1.1 Meaning of warnings and symbols ................................................................................................................ 4

1.2 For the installer............................................................................................................................................................... 5

1.2.1 General ........................................................................................................................................................... 5

1.2.2 Installation site ............................................................................................................................................... 6

1.2.3 Refrigerant...................................................................................................................................................... 9

1.2.4 Brine................................................................................................................................................................ 11

1.2.5 Water .............................................................................................................................................................. 11

1.2.6 Electrical ......................................................................................................................................................... 11

2 About the documentation 14

2.1 About this document ...................................................................................................................................................... 14

2.2 Installer reference guide at a glance .............................................................................................................................. 14

3 About the box 16

3.1 Overview: About the box ................................................................................................................................................ 16

3.2 Outdoor unit ................................................................................................................................................................... 16

3.2.1 To unpack the outdoor unit ........................................................................................................................... 16

3.2.2 To remove the accessories from the outdoor unit........................................................................................ 17

4 About the unit 19

4.1 Overview: About the unit ............................................................................................................................................... 19

4.2 Identification ................................................................................................................................................................... 19

4.2.1 Identification label: Outdoor unit .................................................................................................................. 19

5 Preparation 20

5.1 Overview: Preparation.................................................................................................................................................... 20

5.2 Preparing the installation site......................................................................................................................................... 20

5.2.1 Installation site requirements of the outdoor unit........................................................................................ 21

5.2.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 23

5.2.3 Refrigerant piping length and height difference ........................................................................................... 23

5.3 Preparing refrigerant piping ........................................................................................................................................... 24

5.3.1 Refrigerant piping requirements.................................................................................................................... 24

5.3.2 Refrigerant piping insulation.......................................................................................................................... 24

5.4 Preparing electrical wiring .............................................................................................................................................. 25

5.4.1 About preparing electrical wiring................................................................................................................... 25

6 Installation 26

6.1 Overview: Installation ..................................................................................................................................................... 26

6.2 Opening the unit ............................................................................................................................................................. 26

6.2.1 About opening the unit .................................................................................................................................. 26

6.2.2 To open the outdoor unit............................................................................................................................... 26

6.3 Mounting the outdoor unit............................................................................................................................................. 27

6.3.1 About mounting the outdoor unit ................................................................................................................. 27

6.3.2 Precautions when mounting the outdoor unit.............................................................................................. 27

6.3.3 To provide the installation structure ............................................................................................................. 27

6.3.4 To install the outdoor unit ............................................................................................................................. 28

6.3.5 To provide drainage........................................................................................................................................ 28

6.3.6 To prevent the outdoor unit from falling over .............................................................................................. 29

6.4 Connecting the refrigerant piping .................................................................................................................................. 30

6.4.1 About connecting the refrigerant piping ....................................................................................................... 30

6.4.2 Precautions when connecting the refrigerant piping.................................................................................... 30

6.4.3 Guidelines when connecting the refrigerant piping...................................................................................... 31

6.4.4 Pipe bending guidelines ................................................................................................................................. 32

6.4.5 To flare the pipe end ...................................................................................................................................... 32

6.4.6 Using the stop valve and service port............................................................................................................ 33

6.4.7 To connect the refrigerant piping to the outdoor unit ................................................................................. 34

6.5 Checking the refrigerant piping...................................................................................................................................... 35

6.5.1 About checking the refrigerant piping........................................................................................................... 35

6.5.2 Precautions when checking the refrigerant piping........................................................................................ 35

6.5.3 To check for leaks ........................................................................................................................................... 36

6.5.4 To perform vacuum drying............................................................................................................................. 36

6.6 Charging refrigerant........................................................................................................................................................ 37

6.6.1 About charging refrigerant............................................................................................................................. 37

6.6.2 About the refrigerant ..................................................................................................................................... 38