Table of contents
Installer reference guide
3
RZAG71~140N2V1+Y1
Sky Air Alpha-series
4P695307-1 – 2022.05
7.5.3 Checking refrigerant piping: Setup ................................................................................................................ 47
7.5.4 To check for leaks ........................................................................................................................................... 48
7.5.5 To perform vacuum drying............................................................................................................................. 48
7.6 Charging refrigerant........................................................................................................................................................ 49
7.6.1 About charging refrigerant............................................................................................................................. 49
7.6.2 About the refrigerant ..................................................................................................................................... 51
7.6.3 Precautions when charging refrigerant ......................................................................................................... 51
7.6.4 Definitions: L1~L7, H1, H2.............................................................................................................................. 51
7.6.5 Charging additional refrigerant...................................................................................................................... 52
7.6.6 Completely recharging refrigerant................................................................................................................. 55
7.6.7 To fix the fluorinated greenhouse gases label............................................................................................... 57
7.7 Connecting the electrical wiring..................................................................................................................................... 58
7.7.1 About connecting the electrical wiring.......................................................................................................... 58
7.7.2 About electrical compliance........................................................................................................................... 58
7.7.3 Precautions when connecting the electrical wiring....................................................................................... 58
7.7.4 Guidelines when connecting the electrical wiring......................................................................................... 59
7.7.5 Specifications of standard wiring components.............................................................................................. 60
7.7.6 To connect the electrical wiring to the outdoor unit .................................................................................... 60
7.8 Finishing the outdoor unit installation ........................................................................................................................... 63
7.8.1 To finish the outdoor unit installation ........................................................................................................... 63
7.8.2 To close the outdoor unit............................................................................................................................... 64
7.8.3 To check the insulation resistance of the compressor.................................................................................. 64
8 Commissioning 65
8.1 Overview: Commissioning .............................................................................................................................................. 65
8.2 Precautions when commissioning.................................................................................................................................. 65
8.3 Checklist before commissioning..................................................................................................................................... 66
8.4 To perform a test run...................................................................................................................................................... 66
8.5 Error codes when performing a test run........................................................................................................................ 68
8.6 Dedicated field settings for technical cooling ................................................................................................................ 69
9 Hand-over to the user 70
10 Maintenance and service 71
10.1 Overview: Maintenance and service .............................................................................................................................. 71
10.2 Maintenance safety precautions .................................................................................................................................... 71
10.2.1 To prevent electrical hazards ......................................................................................................................... 71
10.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 72
11 Troubleshooting 73
11.1 Overview: Troubleshooting ............................................................................................................................................ 73
11.2 Precautions when troubleshooting ................................................................................................................................ 73
12 Disposal 75
12.1 Overview: Disposal.......................................................................................................................................................... 75
12.2 About pump down .......................................................................................................................................................... 75
12.3 To pump down ................................................................................................................................................................ 75
13 Technical data 77
13.1 Overview: Technical data................................................................................................................................................ 77
13.2 Service space: Outdoor unit ........................................................................................................................................... 77
13.3 Piping diagram: Outdoor unit ......................................................................................................................................... 79
13.4 Wiring diagram: Outdoor unit ........................................................................................................................................ 80
13.5 Eco Design requirements................................................................................................................................................ 83
14 Glossary 84