Table of contents
Installer reference guide
2
RZASG100~140MUV/Y
Sky Air Advance-series
4P743506-1 – 2023.08
Table of contents
1 About this document 4
1.1 Meaning of warnings and symbols................................................................................................................................. 4
1.2 Installer reference guide at a glance .............................................................................................................................. 5
2 General safety precautions 7
2.1 For the installer............................................................................................................................................................... 7
2.1.1 General ........................................................................................................................................................... 7
2.1.2 Installation site ............................................................................................................................................... 8
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 11
2.1.4 Electrical ......................................................................................................................................................... 12
3 Specific installer safety instructions 15
4 About the box 20
4.1 Outdoor unit ................................................................................................................................................................... 20
4.1.1 To unpack the outdoor unit ........................................................................................................................... 20
4.1.2 To handle the outdoor unit............................................................................................................................ 20
4.1.3 To remove the accessories from the outdoor unit........................................................................................ 21
5 About the units and options 22
5.1 Identification ................................................................................................................................................................... 22
5.1.1 Identification label: Outdoor unit .................................................................................................................. 22
5.2 Combining units and options.......................................................................................................................................... 23
5.2.1 Possible options for the outdoor unit............................................................................................................ 23
6 Unit installation 24
6.1 Preparing the installation site......................................................................................................................................... 24
6.1.1 Installation site requirements of the outdoor unit........................................................................................ 24
6.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 27
6.2 Opening and closing the unit.......................................................................................................................................... 27
6.2.1 About opening the units................................................................................................................................. 27
6.2.2 To open the outdoor unit............................................................................................................................... 27
6.2.3 To close the outdoor unit............................................................................................................................... 29
6.3 Mounting the outdoor unit............................................................................................................................................. 30
6.3.1 About mounting the outdoor unit ................................................................................................................. 30
6.3.2 Precautions when mounting the outdoor unit.............................................................................................. 30
6.3.3 To provide the installation structure ............................................................................................................. 30
6.3.4 To install the outdoor unit ............................................................................................................................. 31
6.3.5 To provide drainage........................................................................................................................................ 31
6.3.6 To prevent the outdoor unit from falling over .............................................................................................. 33
7 Piping installation 34
7.1 Preparing refrigerant piping ........................................................................................................................................... 34
7.1.1 Refrigerant piping requirements.................................................................................................................... 34
7.1.2 Definitions: L1~L7, H1, H2.............................................................................................................................. 35
7.1.3 Refrigerant piping material ............................................................................................................................ 35
7.1.4 Refrigerant piping diameter........................................................................................................................... 35
7.1.5 Refrigerant piping length and height difference ........................................................................................... 36
7.1.6 Refrigerant piping insulation.......................................................................................................................... 37
7.2 Connecting the refrigerant piping .................................................................................................................................. 37
7.2.1 About connecting the refrigerant piping ....................................................................................................... 37
7.2.2 Precautions when connecting the refrigerant piping.................................................................................... 38
7.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 39
7.2.4 Pipe bending guidelines ................................................................................................................................. 39
7.2.5 To flare the pipe end ...................................................................................................................................... 39
7.2.6 To braze the pipe end..................................................................................................................................... 40
7.2.7 Using the stop valve and service port............................................................................................................ 41
7.2.8 To connect the refrigerant piping to the outdoor unit ................................................................................. 42
7.3 Checking the refrigerant piping...................................................................................................................................... 46
7.3.1 About checking the refrigerant piping........................................................................................................... 46
7.3.2 Precautions when checking the refrigerant piping........................................................................................ 46
7.3.3 Checking refrigerant piping: Setup ................................................................................................................ 47
7.3.4 To perform a leak test .................................................................................................................................... 47
7.3.5 To perform vacuum drying............................................................................................................................. 48
8 Electrical installation 49
8.1 About connecting the electrical wiring .......................................................................................................................... 49
