Table of contents
Installer reference guide
2
Table of contents
1.1
About this document ......................................................................................................................................................
2.1
About the documentation ..............................................................................................................................................
2.1.1
2.2
For the installer ...............................................................................................................................................................
2.2.1
General ...........................................................................................................................................................
2.2.2
Installation site ...............................................................................................................................................
2.2.3
2.2.4
Electrical ......................................................................................................................................................... 12
4.1
Indoor unit ...................................................................................................................................................................... 17
4.1.1
To unpack the indoor unit.............................................................................................................................. 17
4.1.2
5.1
System layout.................................................................................................................................................................. 19
5.2
Operation range.............................................................................................................................................................. 19
5.3
About the wireless LAN................................................................................................................................................... 20
5.3.1
5.3.2
Basic parameters ............................................................................................................................................ 20
5.3.3
Setting the wireless LAN................................................................................................................................. 21
6.1
Preparing the installation site......................................................................................................................................... 22
6.1.1
6.2
Opening the indoor unit ................................................................................................................................................. 24
6.2.1
To remove the front panel ............................................................................................................................. 24
6.2.2
To remove the front grille .............................................................................................................................. 24
6.2.3
6.3
Mounting the indoor unit ............................................................................................................................................... 26
6.3.1
To install the indoor unit ................................................................................................................................ 26
6.3.2
To drill a wall hole........................................................................................................................................... 30
6.3.3
To remove the slit portions ............................................................................................................................ 30
6.3.4
To provide drainage........................................................................................................................................ 31
6.4
Mounting the user interface........................................................................................................................................... 33
6.4.1
7.1
Preparing refrigerant piping ........................................................................................................................................... 35
7.1.1
7.1.2
Refrigerant piping insulation.......................................................................................................................... 36
7.2
Connecting the refrigerant piping .................................................................................................................................. 36
7.2.1
7.2.2
7.2.3
7.2.4
Pipe bending guidelines ................................................................................................................................. 38
7.2.5
To flare the pipe end ...................................................................................................................................... 38
7.2.6
8.1
8.1.1
8.1.2
8.1.3
8.2
8.3
9.1
9.2
To close the indoor unit.................................................................................................................................................. 45
9.2.1
9.2.2
To re-install the front grille ............................................................................................................................ 45
4
4
5
5
5
6
6
7
15
17
19
22
35
40
45
CVXM20A + FVXM25~50A
Split system air conditioners
4P625991-1C - 2021.09
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