Daikin R32 Series - Default Chapter; Table of Contents

Table of contents
Installer reference guide
2
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1B – 2020.05
Table of contents
1 General safety precautions 4
1.1 About the documentation .............................................................................................................................................. 4
1.1.1 Meaning of warnings and symbols ................................................................................................................ 4
1.2 For the installer............................................................................................................................................................... 5
1.2.1 General ........................................................................................................................................................... 5
1.2.2 Installation site ............................................................................................................................................... 6
1.2.3 Refrigerant...................................................................................................................................................... 10
1.2.4 Brine................................................................................................................................................................ 11
1.2.5 Water .............................................................................................................................................................. 12
1.2.6 Electrical ......................................................................................................................................................... 12
2 About the documentation 15
2.1 About this document ...................................................................................................................................................... 15
2.2 Installer reference guide at a glance .............................................................................................................................. 15
3 About the box 17
3.1 Overview: About the box ................................................................................................................................................ 17
3.2 Outdoor unit ................................................................................................................................................................... 17
3.2.1 To unpack the outdoor unit ........................................................................................................................... 17
3.2.2 To remove the accessories from the outdoor unit........................................................................................ 18
4 About the units and options 20
4.1 Overview: About the units and options.......................................................................................................................... 20
4.2 Identification ................................................................................................................................................................... 20
4.2.1 Identification label: Outdoor unit .................................................................................................................. 20
5 Preparation 21
5.1 Overview: Preparation.................................................................................................................................................... 21
5.2 Preparing the installation site......................................................................................................................................... 21
5.2.1 Installation site requirements of the outdoor unit........................................................................................ 22
5.2.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 24
5.2.3 Refrigerant piping length and height difference ........................................................................................... 25
5.3 Preparing refrigerant piping ........................................................................................................................................... 25
5.3.1 Refrigerant piping requirements.................................................................................................................... 25
5.3.2 Refrigerant piping insulation.......................................................................................................................... 26
5.4 Preparing electrical wiring .............................................................................................................................................. 27
5.4.1 About preparing electrical wiring................................................................................................................... 27
6 Installation 28
6.1 Overview: Installation ..................................................................................................................................................... 28
6.2 Opening the unit ............................................................................................................................................................. 28
6.2.1 About opening the unit .................................................................................................................................. 28
6.2.2 To open the outdoor unit............................................................................................................................... 29
6.3 Mounting the outdoor unit............................................................................................................................................. 29
6.3.1 About mounting the outdoor unit ................................................................................................................. 29
6.3.2 Precautions when mounting the outdoor unit.............................................................................................. 29
6.3.3 To provide the installation structure ............................................................................................................. 30
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
6.4 Connecting the refrigerant piping .................................................................................................................................. 32
6.4.1 About connecting the refrigerant piping ....................................................................................................... 32
6.4.2 Precautions when connecting the refrigerant piping.................................................................................... 33
6.4.3 Guidelines when connecting the refrigerant piping...................................................................................... 34
6.4.4 Pipe bending guidelines ................................................................................................................................. 34
6.4.5 To flare the pipe end ...................................................................................................................................... 35
6.4.6 Connections between outdoor and indoor unit using reducers................................................................... 35
6.4.7 Using the stop valve and service port............................................................................................................ 38
6.4.8 To connect the refrigerant piping to the outdoor unit ................................................................................. 39
6.5 Checking the refrigerant piping...................................................................................................................................... 40
6.5.1 About checking the refrigerant piping........................................................................................................... 40
6.5.2 Precautions when checking the refrigerant piping........................................................................................ 40
6.5.3 To check for leaks ........................................................................................................................................... 41
6.5.4 To perform vacuum drying............................................................................................................................. 41
6.6 Charging refrigerant........................................................................................................................................................ 42
6.6.1 About charging refrigerant............................................................................................................................. 42