Table of contents
Installer reference guide
2
RZAG71~140N
Sky Air Alpha-series
4P695307-1A – 2024.02
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......................................................................................................... 10
2.1.4 Brine ............................................................................................................................................................... 12
2.1.5 Water ............................................................................................................................................................. 12
2.1.6 Electrical......................................................................................................................................................... 13
2.1.7 Gas.................................................................................................................................................................. 14
2.1.8 Gas exhaust.................................................................................................................................................... 15
2.1.9 Local legislation.............................................................................................................................................. 15
3 Specific installer safety instructions 17
4 About the box 22
4.1 Outdoor unit................................................................................................................................................................... 22
4.1.1 To unpack the outdoor unit........................................................................................................................... 22
4.1.2 To handle the outdoor unit ........................................................................................................................... 22
4.1.3 To remove the accessories from the outdoor unit ....................................................................................... 23
5 About the units and options 24
5.1 Overview: About the units and options......................................................................................................................... 24
5.2 Identification .................................................................................................................................................................. 24
5.2.1 Identification label: Outdoor unit.................................................................................................................. 24
5.3 Combining units and options ......................................................................................................................................... 24
5.3.1 Possible options for the outdoor unit ........................................................................................................... 25
6 Preparation 26
6.1 Overview: Preparation ................................................................................................................................................... 26
6.2 Preparing the installation site ........................................................................................................................................ 26
6.2.1 Installation site requirements of the outdoor unit ....................................................................................... 26
6.2.2 Additional installation site requirements of the outdoor unit in cold climates ........................................... 29
6.3 Preparing refrigerant piping........................................................................................................................................... 29
6.3.1 Refrigerant piping requirements................................................................................................................... 29
6.3.2 Refrigerant piping insulation ......................................................................................................................... 32
6.4 Preparing electrical wiring ............................................................................................................................................. 33
6.4.1 About preparing electrical wiring.................................................................................................................. 33
7 Installation 34
7.1 Overview: Installation..................................................................................................................................................... 34
7.2 Opening the units........................................................................................................................................................... 34
7.2.1 About opening the units................................................................................................................................ 34
7.2.2 To open the outdoor unit .............................................................................................................................. 34
7.3 Mounting the outdoor unit............................................................................................................................................ 35
7.3.1 About mounting the outdoor unit................................................................................................................. 35
7.3.2 Precautions when mounting the outdoor unit ............................................................................................. 35
7.3.3 To provide the installation structure............................................................................................................. 35
7.3.4 To install the outdoor unit............................................................................................................................. 36
7.3.5 To provide drainage....................................................................................................................................... 36
7.3.6 To prevent the outdoor unit from falling over.............................................................................................. 38
7.4 Connecting the refrigerant piping.................................................................................................................................. 39
7.4.1 About connecting the refrigerant piping ...................................................................................................... 39
7.4.2 Precautions when connecting the refrigerant piping ................................................................................... 39
7.4.3 Guidelines when connecting the refrigerant piping ..................................................................................... 40
7.4.4 Pipe bending guidelines................................................................................................................................. 41
7.4.5 To flare the pipe end ..................................................................................................................................... 41
7.4.6 To braze the pipe end.................................................................................................................................... 42
7.4.7 Using the stop valve and service port ........................................................................................................... 42
7.4.8 To connect the refrigerant piping to the outdoor unit................................................................................. 44
7.5 Checking the refrigerant piping ..................................................................................................................................... 46
7.5.1 About checking the refrigerant piping .......................................................................................................... 46
7.5.2 Precautions when checking the refrigerant piping....................................................................................... 47
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