Daikin FXFQ20BVEB - Default Chapter; Table of Contents

Table of contents
Installer and user reference guide
2
FXFQ20~125BVEB
VRV system air conditioner
4P561452-1B – 2021.07
Table of contents
1 General safety precautions 5
1.1 About the documentation .............................................................................................................................................. 5
1.1.1 Meaning of warnings and symbols ................................................................................................................ 5
1.2 For the user..................................................................................................................................................................... 6
1.3 For the installer............................................................................................................................................................... 7
1.3.1 General ........................................................................................................................................................... 7
1.3.2 Installation site ............................................................................................................................................... 8
1.3.3 Refrigerant — in case of R410A or R32.......................................................................................................... 9
1.3.4 Electrical ......................................................................................................................................................... 11
2 About the documentation 13
2.1 About this document ...................................................................................................................................................... 13
For the installer 14
3 About the box 15
3.1 Overview: About the box ................................................................................................................................................ 15
3.2 Indoor unit ...................................................................................................................................................................... 15
3.2.1 To unpack and handle the unit ...................................................................................................................... 15
3.2.2 To remove the accessories from the indoor unit .......................................................................................... 16
4 About the units and options 17
4.1 Overview: About the units and options.......................................................................................................................... 17
4.2 Identification ................................................................................................................................................................... 17
4.2.1 Identification label: Indoor unit ..................................................................................................................... 17
4.3 System layout.................................................................................................................................................................. 18
4.4 Combining units and options.......................................................................................................................................... 18
4.4.1 Possible options for the indoor unit............................................................................................................... 18
5 Preparation 19
5.1 Overview: Preparation.................................................................................................................................................... 19
5.2 Preparing the installation site......................................................................................................................................... 19
5.2.1 Installation site requirements of the indoor unit .......................................................................................... 19
5.3 Preparing refrigerant piping ........................................................................................................................................... 22
5.3.1 Refrigerant piping requirements.................................................................................................................... 22
5.3.2 Refrigerant piping insulation.......................................................................................................................... 23
5.4 Preparing electrical wiring .............................................................................................................................................. 23
5.4.1 About preparing electrical wiring................................................................................................................... 23
6 Installation 24
6.1 Overview: Installation ..................................................................................................................................................... 24
6.2 Mounting the indoor unit ............................................................................................................................................... 24
6.2.1 Precautions when mounting the indoor unit................................................................................................. 24
6.2.2 Guidelines when installing the indoor unit.................................................................................................... 25
6.2.3 Guidelines when installing the drain piping................................................................................................... 27
6.3 Connecting the refrigerant piping .................................................................................................................................. 30
6.3.1 About connecting the refrigerant piping ....................................................................................................... 30
6.3.2 Precautions when connecting the refrigerant piping.................................................................................... 31
6.3.3 Guidelines when connecting the refrigerant piping...................................................................................... 31
6.3.4 Pipe bending guidelines ................................................................................................................................. 32
6.3.5 To flare the pipe end ...................................................................................................................................... 32
6.3.6 To connect the refrigerant piping to the indoor unit .................................................................................... 33
6.4 Connecting the electrical wiring..................................................................................................................................... 34
6.4.1 About connecting the electrical wiring.......................................................................................................... 34
6.4.2 Precautions when connecting the electrical wiring....................................................................................... 34
6.4.3 Guidelines when connecting the electrical wiring......................................................................................... 34
6.4.4 Specifications of standard wiring components.............................................................................................. 35
6.4.5 To connect the electrical wiring to the indoor unit....................................................................................... 36
7 Configuration 39
7.1 Field setting..................................................................................................................................................................... 39
8 Commissioning 42
8.1 Overview: Commissioning .............................................................................................................................................. 42
8.2 Precautions when commissioning.................................................................................................................................. 42