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Table of contents
Installer reference guide
2
Table of contents
1.1
About this document ......................................................................................................................................................
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..........................................................................................................
2.2.4
Brine................................................................................................................................................................ 11
2.2.5
Water .............................................................................................................................................................. 12
2.2.6
Electrical ......................................................................................................................................................... 12
4.1
Overview: About the box ................................................................................................................................................ 19
4.2
Indoor unit ...................................................................................................................................................................... 19
4.2.1
To unpack the indoor unit.............................................................................................................................. 19
4.2.2
To remove the accessories from the indoor unit .......................................................................................... 20
5.1
System layout.................................................................................................................................................................. 21
5.2
Operation range.............................................................................................................................................................. 21
5.3
About the wireless LAN................................................................................................................................................... 22
5.3.1
Precautions when using the wireless LAN ..................................................................................................... 22
5.3.2
Basic parameters ............................................................................................................................................ 22
5.3.3
Setting the wireless LAN................................................................................................................................. 22
6.1
Preparing the installation site......................................................................................................................................... 24
6.1.1
Installation site requirements of the indoor unit .......................................................................................... 24
6.2
Opening the indoor unit ................................................................................................................................................. 26
6.2.1
To remove the front panel ............................................................................................................................. 26
6.2.2
To re-install the front panel ........................................................................................................................... 26
6.2.3
To remove the front grille .............................................................................................................................. 26
6.2.4
To re-install the front grille ............................................................................................................................ 27
6.2.5
To remove the electrical wiring box cover..................................................................................................... 27
6.2.6
To open the service cover .............................................................................................................................. 28
6.3
Installing the indoor unit ................................................................................................................................................ 28
6.3.1
Precautions when installing the indoor unit.................................................................................................. 28
6.3.2
To install the mounting plate ......................................................................................................................... 28
6.3.3
To drill a wall hole........................................................................................................................................... 29
6.3.4
To remove the pipe port cover ...................................................................................................................... 29
6.3.5
To provide drainage........................................................................................................................................ 30
7.1
Preparing refrigerant piping ........................................................................................................................................... 33
7.1.1
Refrigerant piping requirements.................................................................................................................... 33
7.1.2
Refrigerant piping insulation.......................................................................................................................... 34
7.2
Connecting the refrigerant piping .................................................................................................................................. 34
7.2.1
About connecting the refrigerant piping ....................................................................................................... 34
7.2.2
Precautions when connecting the refrigerant piping.................................................................................... 34
7.2.3
Guidelines when connecting the refrigerant piping...................................................................................... 35
7.2.4
Pipe bending guidelines ................................................................................................................................. 36
7.2.5
To flare the pipe end ...................................................................................................................................... 36
7.2.6
To connect the refrigerant piping to the indoor unit .................................................................................... 37
8.1
Preparing electrical wiring .............................................................................................................................................. 38
8.1.1
About preparing electrical wiring................................................................................................................... 38
8.2
Connecting the electrical wiring..................................................................................................................................... 38
8.2.1
About connecting the electrical wiring .......................................................................................................... 38
8.2.2
Precautions when connecting the electrical wiring....................................................................................... 39
8.2.3
Guidelines when connecting the electrical wiring......................................................................................... 39
8.2.4
Specifications of standard wiring components.............................................................................................. 41
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FTXP20~35N5V1B + ATXP20~35N5V1B
Split system air conditioners
4P519439-20U - 2022.09
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