Table of contents
Installer and user reference guide
2
FCAHG71~140HVEB
Split system air conditioners
4P561449-1B – 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.......................................................................................................... 11
1.3.4 Brine................................................................................................................................................................ 13
1.3.5 Water .............................................................................................................................................................. 13
1.3.6 Electrical ......................................................................................................................................................... 14
2 About the documentation 16
2.1 About this document ...................................................................................................................................................... 16
For the installer 17
3 About the box 18
3.1 Overview: About the box ................................................................................................................................................ 18
3.2 Indoor unit ...................................................................................................................................................................... 18
3.2.1 To unpack and handle the unit ...................................................................................................................... 18
3.2.2 To remove the accessories from the indoor unit .......................................................................................... 19
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: Indoor unit ..................................................................................................................... 20
4.3 About the indoor unit ..................................................................................................................................................... 20
4.4 System layout.................................................................................................................................................................. 21
4.5 Combining units and options.......................................................................................................................................... 22
4.5.1 Possible options for the indoor unit............................................................................................................... 22
5 Preparation 23
5.1 Overview: Preparation.................................................................................................................................................... 23
5.2 Preparing the installation site......................................................................................................................................... 23
5.2.1 Installation site requirements of the indoor unit .......................................................................................... 23
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 .............................................................................................................................................. 26
5.4.1 About preparing electrical wiring................................................................................................................... 26
6 Installation 28
6.1 Overview: Installation ..................................................................................................................................................... 28
6.2 Mounting the indoor unit ............................................................................................................................................... 28
6.2.1 Precautions when mounting the indoor unit................................................................................................. 28
6.2.2 Guidelines when installing the indoor unit.................................................................................................... 29
6.2.3 Guidelines when installing the drain piping................................................................................................... 31
6.3 Connecting the refrigerant piping .................................................................................................................................. 34
6.3.1 About connecting the refrigerant piping ....................................................................................................... 34
6.3.2 Precautions when connecting the refrigerant piping.................................................................................... 35
6.3.3 Guidelines when connecting the refrigerant piping...................................................................................... 36
6.3.4 Pipe bending guidelines ................................................................................................................................. 36
6.3.5 To flare the pipe end ...................................................................................................................................... 36
6.3.6 To connect the refrigerant piping to the indoor unit .................................................................................... 37
6.4 Connecting the electrical wiring..................................................................................................................................... 38
6.4.1 About connecting the electrical wiring.......................................................................................................... 38
6.4.2 Precautions when connecting the electrical wiring....................................................................................... 38
6.4.3 Guidelines when connecting the electrical wiring......................................................................................... 39
6.4.4 Specifications of standard wiring components.............................................................................................. 39
6.4.5 To connect the electrical wiring to the indoor unit....................................................................................... 40
7 Configuration 43
7.1 Field setting..................................................................................................................................................................... 43
