Daikin 2MXF40A2V1B Handleiding

Daikin Airco 2MXF40A2V1B

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Installer reference guide

R32 Split series

2AMXM40M4V1B9

2AMXM50M4V1B9

2AMXF40A2V1B

2AMXF50A2V1B

2MXF40A2V1B

2MXF50A2V1B

2MXM40N2V1B9

2MXM50N2V1B9

Table of contents

Installer reference guide

2(A)MXM40+50 + 2(A)MXF40+50

R32 Split series

4P600463-3D – 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 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 remove the accessories from the outdoor unit........................................................................................ 22

5 About the unit 24

5.1 Overview: About the unit ............................................................................................................................................... 24

5.2 Identification ................................................................................................................................................................... 24

5.2.1 Identification label: Outdoor unit .................................................................................................................. 24

6 Unit installation 25

6.1 Preparing the installation site......................................................................................................................................... 25

6.1.1 Installation site requirements of the outdoor unit........................................................................................ 26

6.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 28

6.2 Opening the unit ............................................................................................................................................................. 29

6.2.1 About opening the unit .................................................................................................................................. 29

6.2.2 To open the outdoor unit............................................................................................................................... 29

6.3 Mounting the outdoor unit............................................................................................................................................. 30

6.3.1 About mounting the outdoor unit ................................................................................................................. 30

6.3.2 Precautions when mounting the outdoor unit.............................................................................................. 30

6.3.3 To provide the installation structure ............................................................................................................. 30

6.3.4 To install the outdoor unit ............................................................................................................................. 31

6.3.5 To provide drainage........................................................................................................................................ 31

6.3.6 To prevent the outdoor unit from falling over .............................................................................................. 32

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 .................................................................................................................................. 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............................................................................................................ 39

7.2.8 To connect the refrigerant piping to the outdoor unit ................................................................................. 41

7.3 Checking the refrigerant piping...................................................................................................................................... 41

7.3.1 About checking the refrigerant piping........................................................................................................... 41

7.3.2 Precautions when checking the refrigerant piping........................................................................................ 42

7.3.3 To check for leaks ........................................................................................................................................... 42

7.3.4 To perform vacuum drying............................................................................................................................. 43

8 Charging refrigerant 45

8.1 About charging refrigerant ............................................................................................................................................. 45

8.2 About the refrigerant...................................................................................................................................................... 46

8.3 Precautions when charging refrigerant.......................................................................................................................... 47

8.4 To determine the additional refrigerant amount .......................................................................................................... 47

8.5 To determine the complete recharge amount .............................................................................................................. 47

8.6 To charge additional refrigerant..................................................................................................................................... 47