Daikin ARXM35A5V1B Bedienungsanleitung

Daikin Klimaanlage ARXM35A5V1B

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Installer reference guide

R32 split series

RXM20A5V1B

RXM25A5V1B

RXM35A5V1B

RXM42A5V1B

ARXM25A5V1B

ARXM35A5V1B

Table of contents

Installer reference guide

RXM-A, ARXM-A

R32 split series

4P718129-3B – 2023.11

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 Electrical ......................................................................................................................................................... 12

3 Specific installer safety instructions 15

4 About the box 21

4.1 Outdoor unit ................................................................................................................................................................... 21

4.1.1 To unpack the outdoor unit ........................................................................................................................... 21

4.1.2 To handle the outdoor unit............................................................................................................................ 21

4.1.3 To remove the accessories from the outdoor unit........................................................................................ 22

5 About the unit 23

5.1 Identification ................................................................................................................................................................... 23

5.1.1 Identification label: Outdoor unit .................................................................................................................. 23

6 Unit installation 24

6.1 Preparing the installation site......................................................................................................................................... 24

6.1.1 Installation site requirements of the outdoor unit........................................................................................ 25

6.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 27

6.2 Opening the unit ............................................................................................................................................................. 28

6.2.1 About opening the unit .................................................................................................................................. 28

6.2.2 To open the outdoor unit............................................................................................................................... 28

6.3 Mounting the outdoor unit............................................................................................................................................. 28

6.3.1 About mounting the outdoor unit ................................................................................................................. 28

6.3.2 Precautions when mounting the outdoor unit.............................................................................................. 29

6.3.3 To provide the installation structure ............................................................................................................. 29

6.3.4 To install the outdoor unit ............................................................................................................................. 30

6.3.5 To provide drainage........................................................................................................................................ 30

6.3.6 To prevent the outdoor unit from falling over .............................................................................................. 31

7 Piping installation 33

7.1 Preparing refrigerant piping ........................................................................................................................................... 33

7.1.1 Refrigerant piping requirements.................................................................................................................... 33

7.1.2 Refrigerant piping insulation.......................................................................................................................... 34

7.1.3 Refrigerant piping length and height difference ........................................................................................... 34

7.2 Connecting the refrigerant piping .................................................................................................................................. 34

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

7.2.2 Precautions when connecting the refrigerant piping.................................................................................... 35

7.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 36

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

7.2.5 To flare the pipe end ...................................................................................................................................... 37

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

7.2.7 To connect the refrigerant piping to the outdoor unit ................................................................................. 39

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........................................................................................ 40

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

7.3.4 To perform vacuum drying............................................................................................................................. 41

8 Charging refrigerant 43

8.1 About charging refrigerant ............................................................................................................................................. 43

8.2 About the refrigerant...................................................................................................................................................... 44

8.3 Precautions when charging refrigerant.......................................................................................................................... 45

8.4 To determine the additional refrigerant amount .......................................................................................................... 45

8.5 To determine the complete recharge amount .............................................................................................................. 45

8.6 To charge additional refrigerant..................................................................................................................................... 45

8.7 To check refrigerant piping joints for leaks after charging refrigerant ......................................................................... 46

8.8 To fix the fluorinated greenhouse gases label ............................................................................................................... 46

Table of contents

Installer reference guide

RXM-A, ARXM-A

R32 split series

4P718129-3B – 2023.11

9 Electrical installation 47

9.1 About connecting the electrical wiring .......................................................................................................................... 47

9.1.1 Precautions when connecting the electrical wiring....................................................................................... 47

9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 48

9.1.3 Specifications of standard wiring components.............................................................................................. 50

9.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 50

10 Finishing the outdoor unit installation 52

10.1 To finish the outdoor unit installation............................................................................................................................ 52

10.2 Closing the unit ............................................................................................................................................................... 52

10.2.1 To close the outdoor unit............................................................................................................................... 52

11 Configuration 53

11.1 Facility setting ................................................................................................................................................................. 53

11.1.1 To set the facility mode .................................................................................................................................. 53

11.2 Standby electricity saving function................................................................................................................................. 53

11.2.1 About the standby electricity saving function ............................................................................................... 53

11.2.2 To turn ON standby electricity saving function ............................................................................................. 54

12 Commissioning 55

12.1 Precautions when commissioning.................................................................................................................................. 55

12.2 Checklist before commissioning..................................................................................................................................... 55

12.3 Checklist during commissioning ..................................................................................................................................... 56

12.4 To perform a test run...................................................................................................................................................... 56

12.5 Starting up the outdoor unit........................................................................................................................................... 57

13 Hand-over to the user 58

14 Maintenance and service 59

14.1 Overview: Maintenance and service .............................................................................................................................. 60

14.2 Maintenance safety precautions.................................................................................................................................... 60

14.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 60

14.4 About the compressor .................................................................................................................................................... 60

15 Troubleshooting 62

15.1 Overview: Troubleshooting ............................................................................................................................................ 62

15.2 Precautions when troubleshooting ................................................................................................................................ 62

15.3 Solving problems based on symptoms........................................................................................................................... 62

15.3.1 Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 62

15.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 63

15.3.3 Symptom: Water leakage............................................................................................................................... 63

15.3.4 Symptom: Electrical leakage .......................................................................................................................... 63

15.3.5 Symptom: Unit does NOT function or burn damage..................................................................................... 63

15.4 Fault diagnosis using LED on outdoor unit PCB.............................................................................................................. 63

16 Disposal 64

16.1 Overview: Disposal.......................................................................................................................................................... 64

16.2 To pump down................................................................................................................................................................ 64

16.3 To start and stop forced cooling..................................................................................................................................... 65

16.3.1 To start and stop forced cooling using the indoor unit ON/OFF switch ....................................................... 65

16.3.2 To start and stop forced cooling using the indoor unit user interface ......................................................... 65

17 Technical data 66

17.1 Wiring diagram................................................................................................................................................................ 66

17.1.1 Unified wiring diagram legend ....................................................................................................................... 66

17.2 Piping diagram ................................................................................................................................................................ 69

17.2.1 Piping diagram: Outdoor unit......................................................................................................................... 69

18 Glossary 71