Table of contents
Installer reference guide
2
Table of contents
1.1
About this document ......................................................................................................................................................
1.1.1
2.1
For the installer ...............................................................................................................................................................
2.1.1
General ...........................................................................................................................................................
2.1.2
Installation site ...............................................................................................................................................
2.1.3
2.1.4
Electrical ......................................................................................................................................................... 12
4.1
Overview: About the box ................................................................................................................................................ 21
4.2
Outdoor unit ................................................................................................................................................................... 21
4.2.1
To unpack the outdoor unit ........................................................................................................................... 21
4.2.2
To handle the outdoor unit ............................................................................................................................ 21
4.2.3
5.1
Identification ................................................................................................................................................................... 23
5.1.1
6.1
Preparing the installation site......................................................................................................................................... 24
6.1.1
6.1.2
6.2
Opening the unit ............................................................................................................................................................. 28
6.2.1
About opening the unit .................................................................................................................................. 28
6.2.2
To open the outdoor unit............................................................................................................................... 28
6.3
Mounting the outdoor unit............................................................................................................................................. 28
6.3.1
6.3.2
6.3.3
6.3.4
To install the outdoor unit ............................................................................................................................. 30
6.3.5
To provide drainage........................................................................................................................................ 30
6.3.6
7.1
Preparing refrigerant piping ........................................................................................................................................... 32
7.1.1
7.1.2
Refrigerant piping insulation.......................................................................................................................... 33
7.1.3
7.2
Connecting the refrigerant piping .................................................................................................................................. 34
7.2.1
7.2.2
7.2.3
7.2.4
Pipe bending guidelines ................................................................................................................................. 36
7.2.5
To flare the pipe end ...................................................................................................................................... 36
7.2.6
7.2.7
7.2.8
7.3
Checking the refrigerant piping...................................................................................................................................... 40
7.3.1
7.3.2
7.3.3
To check for leaks ........................................................................................................................................... 41
7.3.4
To perform vacuum drying............................................................................................................................. 41
8.1
About charging refrigerant ............................................................................................................................................. 43
8.2
About the refrigerant...................................................................................................................................................... 44
8.3
8.4
8.5
8.6
To charge additional refrigerant..................................................................................................................................... 45
8.7
4
4
5
7
7
7
8
15
21
23
24
32
43
2MXM40+50A
R32 Split series
4P600463-4E - 2021.12