Daikin 5MXM90N2V1B9 Manual de Usario

Daikin No categorizado 5MXM90N2V1B9

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Installer reference guide

R32 Split series

2MXM68N2V1B

3MXM40N2V1B9

3MXM40N2V1B8

3MXM40N2V1B7

3MXM52N2V1B9

3MXM52N2V1B8

3MXM52N2V1B7

3MXM68N2V1B9

3AMXM52N2V1B9

3AMXF52A2V1B9

3MXF52A2V1B9

3MXF68A2V1B9

4MXM68N2V1B9

4MXM80N2V1B9

5MXM90N2V1B9

Table of contents

Installer reference guide

2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM

R32 Split series

4P600463-1D – 2021.03

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

3 Specific installer safety instructions 15

4 About the box 20

4.1 Overview: About the box................................................................................................................................................ 20

4.2 Outdoor unit ................................................................................................................................................................... 20

4.2.1 To unpack the outdoor unit ........................................................................................................................... 20

4.2.2 To remove the accessories from the outdoor unit........................................................................................ 21

5 About the unit 23

5.1 Overview: About the unit ............................................................................................................................................... 23

5.2 Identification ................................................................................................................................................................... 23

5.2.1 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 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 ........................................................................................... 34

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.................................................................................... 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 Connections between outdoor and indoor unit using reducers................................................................... 38

7.2.7 Using the stop valve and service port............................................................................................................ 40

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

7.3 Checking the refrigerant piping...................................................................................................................................... 42

7.3.1 About checking the refrigerant piping........................................................................................................... 42

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

7.3.3 To check for leaks........................................................................................................................................... 43

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

8.5 To determine the complete recharge amount .............................................................................................................. 48

8.6 To charge additional refrigerant..................................................................................................................................... 49

Table of contents

Installer reference guide

2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM

R32 Split series

4P600463-1D – 2021.03

8.7 To fix the fluorinated greenhouse gases label ............................................................................................................... 49

9 Electrical installation 50

9.1 About connecting the electrical wiring .......................................................................................................................... 50

9.1.1 Precautions when connecting the electrical wiring....................................................................................... 50

9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 52

9.1.3 Specifications of standard wiring components.............................................................................................. 53

9.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 54

10 Finishing the outdoor unit installation 56

10.1 To finish the outdoor unit installation............................................................................................................................ 56

10.2 To close the outdoor unit ............................................................................................................................................... 56

11 Configuration 57

11.1 About standby electricity saving function...................................................................................................................... 57

11.1.1 To turn on standby electricity saving function .............................................................................................. 57

11.2 About priority room function ......................................................................................................................................... 58

11.2.1 To set the priority room function................................................................................................................... 58

11.3 About night quiet mode.................................................................................................................................................. 58

11.3.1 To turn on the night quiet mode.................................................................................................................... 58

11.4 About heat mode lock .................................................................................................................................................... 59

11.4.1 To turn on heat mode lock ............................................................................................................................. 59

11.5 About cool mode lock..................................................................................................................................................... 59

11.5.1 To turn on cool mode lock ............................................................................................................................. 59

12 Commissioning 61

12.1 Overview: Commissioning .............................................................................................................................................. 61

12.2 Precautions when commissioning.................................................................................................................................. 61

12.3 Checklist before commissioning ..................................................................................................................................... 62

12.4 Checklist during commissioning ..................................................................................................................................... 62

12.5 Trial operation and testing ............................................................................................................................................. 62

12.5.1 About wiring error check................................................................................................................................ 63

12.5.2 To perform a test run ..................................................................................................................................... 64

12.6 Starting up the outdoor unit........................................................................................................................................... 64

13 Hand-over to the user 65

14 Maintenance and service 66

14.1 Overview: Maintenance and service .............................................................................................................................. 66

14.2 Maintenance safety precautions.................................................................................................................................... 66

14.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 66

14.4 About the compressor .................................................................................................................................................... 67

15 Troubleshooting 68

15.1 Overview: Troubleshooting ............................................................................................................................................ 68

15.2 Precautions when troubleshooting ................................................................................................................................ 68

15.3 Solving problems based on symptoms ........................................................................................................................... 68

15.3.1 Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 68

15.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 69

15.3.3 Symptom: Water leakage ............................................................................................................................... 69

15.3.4 Symptom: Electrical leakage .......................................................................................................................... 69

15.3.5 Symptom: Priority room setting does NOT function..................................................................................... 69

15.3.6 Symptom: Unit does NOT function or burn damage..................................................................................... 69

15.4 Solving problems based on LED behaviour .................................................................................................................... 70

15.4.1 Fault diagnosis using LED on outdoor unit PCB ............................................................................................. 70

16 Disposal 72

16.1 Overview: Disposal.......................................................................................................................................................... 72

16.2 To pump down ................................................................................................................................................................ 72

16.3 To start and stop forced cooling..................................................................................................................................... 73

17 Technical data 75

17.1 Wiring diagram................................................................................................................................................................ 75

17.1.1 Unified wiring diagram legend ....................................................................................................................... 75

17.2 Piping diagram: Outdoor unit......................................................................................................................................... 77

18 Glossary 82