Table of contents
Installer reference guide
2
AZAS100~140MUV/Y
Sky Air Active-series
4P743509-1B – 2024.05
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
6 Unit installation 23
6.1 Preparing the installation site ........................................................................................................................................ 23
6.1.1 Installation site requirements of the outdoor unit ....................................................................................... 23
6.1.2 Additional installation site requirements of the outdoor unit in cold climates ........................................... 26
6.2 Opening and closing the unit ......................................................................................................................................... 26
6.2.1 About opening the units................................................................................................................................ 26
6.2.2 To open the outdoor unit .............................................................................................................................. 26
6.2.3 To close the outdoor unit .............................................................................................................................. 28
6.3 Mounting the outdoor unit............................................................................................................................................ 29
6.3.1 About mounting the outdoor unit................................................................................................................. 29
6.3.2 Precautions when mounting the outdoor unit ............................................................................................. 29
6.3.3 To provide the installation structure............................................................................................................. 29
6.3.4 To install the outdoor unit............................................................................................................................. 30
6.3.5 To provide drainage....................................................................................................................................... 30
6.3.6 To prevent the outdoor unit from falling over.............................................................................................. 32
7 Piping installation 33
7.1 Preparing refrigerant piping........................................................................................................................................... 33
7.1.1 Refrigerant piping requirements................................................................................................................... 33
7.1.2 Refrigerant piping material............................................................................................................................ 33
7.1.3 Refrigerant piping diameter .......................................................................................................................... 34
7.1.4 Refrigerant piping length and height difference........................................................................................... 34
7.1.5 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 ................................................................................... 35
7.2.3 Guidelines when connecting the refrigerant piping ..................................................................................... 36
7.2.4 Pipe bending guidelines................................................................................................................................. 36
7.2.5 To flare the pipe end ..................................................................................................................................... 36
7.2.6 To braze the pipe end.................................................................................................................................... 37
7.2.7 Using the stop valve and service port ........................................................................................................... 38
7.2.8 To connect the refrigerant piping to the outdoor unit................................................................................. 39
7.3 Checking the refrigerant piping ..................................................................................................................................... 43
7.3.1 About checking the refrigerant piping .......................................................................................................... 43
7.3.2 Precautions when checking the refrigerant piping....................................................................................... 43
7.3.3 Checking refrigerant piping: Setup................................................................................................................ 44
7.3.4 To perform a leak test ................................................................................................................................... 44
7.3.5 To perform vacuum drying ............................................................................................................................ 44
8 Electrical installation 46
8.1 About connecting the electrical wiring.......................................................................................................................... 46
8.1.1 Precautions when connecting the electrical wiring...................................................................................... 46
8.1.2 Guidelines when connecting the electrical wiring........................................................................................ 47
8.1.3 About electrical compliance .......................................................................................................................... 49
