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 ................................................................................................................................................................... 22
4.2.1
To unpack the outdoor unit ........................................................................................................................... 22
4.2.2
To handle the outdoor unit ............................................................................................................................ 22
4.2.3
5.1
Identification ................................................................................................................................................................... 24
5.1.1
6.1
Preparing the installation site......................................................................................................................................... 25
6.1.1
6.1.2
6.2
Opening and closing the unit.......................................................................................................................................... 29
6.2.1
About opening the units................................................................................................................................. 29
6.2.2
To open the outdoor unit............................................................................................................................... 29
6.3
Mounting the outdoor unit............................................................................................................................................. 29
6.3.1
6.3.2
6.3.3
6.3.4
To install the outdoor unit ............................................................................................................................. 31
6.3.5
To provide drainage........................................................................................................................................ 31
6.3.6
7.1
Preparing refrigerant piping ........................................................................................................................................... 33
7.1.1
7.1.2
Refrigerant piping insulation.......................................................................................................................... 34
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 ................................................................................................................................. 37
7.2.5
To flare the pipe end ...................................................................................................................................... 37
7.2.6
7.2.7
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
24
25
33
43
RXF50~71D5V1B
R32 split series
4P519439-18T - 2022.06