Table Of Contents - Daikin 3MXM40N2V1B9 Installer's Reference Manual

Table of contents

Installer reference guide
2
Table of contents
1 About the documentation
1.1 About this document ......................................................................................................................................................
2 General safety precautions
2.1 About the documentation ..............................................................................................................................................
2.1.1 Meaning of warnings and symbols ................................................................................................................
2.2 For the installer ...............................................................................................................................................................
2.2.1 General ...........................................................................................................................................................
2.2.2 Installation site ...............................................................................................................................................
2.2.3 Refrigerant - in case of R410A or R32.......................................................................................................... 10
2.2.4 Electrical ......................................................................................................................................................... 12
3 Specific installer safety instructions
4 About the box
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
5.1 Overview: About the unit ............................................................................................................................................... 23
5.2 Identification ................................................................................................................................................................... 23
5.2.1 Identification label: Outdoor unit .................................................................................................................. 23
6 Unit installation
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
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
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
2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1D - 2021.03
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