Daikin RXJ25A5V1B Manual

Daikin Not categorized RXJ25A5V1B

Read below 📖 the manual in Italian for Daikin RXJ25A5V1B (29 pages) in the Not categorized category. This guide has been helpful for 30 people and has been rated 4.5 stars on average by 2 users

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Installer reference guide

R32 split series

RXJ42A2V1B

RXJ50A2V1B

Table of contents

Installer reference guide

RXJ42+50A

R32 split series

4P513661-15N – 2021.12

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 Water .............................................................................................................................................................. 12

2.1.5 Electrical ......................................................................................................................................................... 13

3 Specific installer safety instructions 15

4 About the box 21

4.1 Overview: About the box ................................................................................................................................................ 21

4.2 Outdoor unit ................................................................................................................................................................... 21

4.2.1 To unpack the outdoor unit ........................................................................................................................... 21

4.2.2 To handle the outdoor unit............................................................................................................................ 21

4.2.3 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 and closing the unit.......................................................................................................................................... 28

6.2.1 About opening the units................................................................................................................................. 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 32

7.1 Preparing refrigerant piping ........................................................................................................................................... 32

7.1.1 Refrigerant piping requirements.................................................................................................................... 32

7.1.2 Refrigerant piping insulation.......................................................................................................................... 33

7.1.3 Refrigerant piping length and height difference ........................................................................................... 33

7.2 Connecting the refrigerant piping .................................................................................................................................. 33

7.2.1 About connecting the refrigerant piping ....................................................................................................... 34

7.2.2 Precautions when connecting the refrigerant piping.................................................................................... 34

7.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 35

7.2.4 Pipe bending guidelines ................................................................................................................................. 36

7.2.5 To flare the pipe end ...................................................................................................................................... 36

7.2.6 Using the stop valve and service port............................................................................................................ 37

7.2.7 To connect the refrigerant piping to the outdoor unit ................................................................................. 38

7.3 Checking the refrigerant piping...................................................................................................................................... 39

7.3.1 About checking the refrigerant piping........................................................................................................... 39

7.3.2 Precautions when checking the refrigerant piping........................................................................................ 39

7.3.3 To check for leaks ........................................................................................................................................... 40

7.3.4 To perform vacuum drying............................................................................................................................. 40

8 Charging refrigerant 42

8.1 About charging refrigerant ............................................................................................................................................. 42

8.2 About the refrigerant...................................................................................................................................................... 43

8.3 Precautions when charging refrigerant.......................................................................................................................... 44

8.4 To determine the additional refrigerant amount .......................................................................................................... 44

8.5 To determine the complete recharge amount .............................................................................................................. 44

8.6 To charge additional refrigerant..................................................................................................................................... 44

8.7 To fix the fluorinated greenhouse gases label ............................................................................................................... 45

Table of contents

Installer reference guide

RXJ42+50A

R32 split series

4P513661-15N – 2021.12

9 Electrical installation 46

9.1 About connecting the electrical wiring .......................................................................................................................... 46

9.1.1 Precautions when connecting the electrical wiring....................................................................................... 46

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

9.1.3 Specifications of standard wiring components.............................................................................................. 49

9.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 49

10 Finishing the outdoor unit installation 51

10.1 To finish the outdoor unit installation............................................................................................................................ 51

10.2 To close the outdoor unit ............................................................................................................................................... 51

11 Configuration 52

11.1 Facility setting ................................................................................................................................................................. 52

11.1.1 To set the facility mode.................................................................................................................................. 52

12 Commissioning 53

12.1 Overview: Commissioning .............................................................................................................................................. 53

12.2 Precautions when commissioning.................................................................................................................................. 53

12.3 Checklist before commissioning..................................................................................................................................... 54

12.4 Checklist during commissioning ..................................................................................................................................... 54

12.5 To perform a test run...................................................................................................................................................... 55

12.6 Starting up the outdoor unit........................................................................................................................................... 55

13 Hand-over to the user 56

14 Maintenance and service 57

14.1 Overview: Maintenance and service .............................................................................................................................. 57

14.2 Maintenance safety precautions.................................................................................................................................... 57

14.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 58

14.4 About the compressor .................................................................................................................................................... 58

15 Troubleshooting 59

15.1 Overview: Troubleshooting ............................................................................................................................................ 59

15.2 Precautions when troubleshooting ................................................................................................................................ 59

15.3 Solving problems based on symptoms........................................................................................................................... 59

15.3.1 Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 59

15.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 60

15.3.3 Symptom: Water leakage............................................................................................................................... 60

15.3.4 Symptom: Electrical leakage .......................................................................................................................... 60

15.3.5 Symptom: Unit does NOT function or burn damage..................................................................................... 60

15.4 Fault diagnosis using LED on outdoor unit PCB.............................................................................................................. 60

16 Disposal 61

16.1 Overview: Disposal.......................................................................................................................................................... 61

16.2 To pump down ................................................................................................................................................................ 61

16.3 To start and stop forced cooling..................................................................................................................................... 62

16.3.1 To start and stop forced cooling using the indoor unit ON/OFF switch ....................................................... 62

16.3.2 To start and stop forced cooling using the indoor unit user interface ......................................................... 62

17 Technical data 63

17.1 Wiring diagram................................................................................................................................................................ 63

17.1.1 Unified wiring diagram legend ....................................................................................................................... 63

17.2 Piping diagram ................................................................................................................................................................ 66

17.2.1 Piping diagram: Outdoor unit......................................................................................................................... 66

18 Glossary 67