Daikin 3MXF68A2V1B9 Manual

Daikin Air conditioning 3MXF68A2V1B9

Read below 📖 the manual in Italian for Daikin 3MXF68A2V1B9 (63 pages) in the Air conditioning category. This guide has been helpful for 18 people and has been rated 4.5 stars on average by 2 users

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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