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R32 split series
4P751614-2 - 2023.09
7.4.7
To fix the fluorinated greenhouse gases label............................................................................................... 44
8.1
Preparing electrical wiring .............................................................................................................................................. 45
8.1.1
About preparing electrical wiring................................................................................................................... 45
8.2
Connecting the electrical wiring..................................................................................................................................... 46
8.2.1
About connecting the electrical wiring .......................................................................................................... 46
8.2.2
Precautions when connecting the electrical wiring....................................................................................... 46
8.2.3
Guidelines when connecting the electrical wiring......................................................................................... 47
8.2.4
Specifications of standard wiring components.............................................................................................. 48
8.2.5
To connect the electrical wiring to the outdoor unit .................................................................................... 48
9.1
To finish the outdoor unit installation............................................................................................................................ 50
9.2
To close the outdoor unit ............................................................................................................................................... 50
10.1
Overview: Commissioning .............................................................................................................................................. 51
10.2
Precautions when commissioning .................................................................................................................................. 51
10.3
Checklist before commissioning..................................................................................................................................... 51
10.4
Checklist during commissioning ..................................................................................................................................... 52
10.5
To perform a test run...................................................................................................................................................... 52
10.6
Starting up the outdoor unit........................................................................................................................................... 53
12.1
Overview: Maintenance and service .............................................................................................................................. 55
12.2
Maintenance safety precautions.................................................................................................................................... 55
12.3
Checklist for yearly maintenance of the outdoor unit................................................................................................... 55
13.1
Overview: Troubleshooting ............................................................................................................................................ 57
13.2
Precautions when troubleshooting ................................................................................................................................ 57
13.3
Solving problems based on symptoms........................................................................................................................... 57
13.3.1
Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 57
13.3.2
Symptom: The unit is NOT heating or cooling as expected........................................................................... 58
13.3.3
Symptom: Water leakage............................................................................................................................... 58
13.3.4
Symptom: Electrical leakage .......................................................................................................................... 58
13.3.5
Symptom: Unit does NOT function or burn damage..................................................................................... 58
14.1
Overview: Disposal.......................................................................................................................................................... 59
14.2
To pump down ................................................................................................................................................................ 59
14.3
To start and stop forced cooling..................................................................................................................................... 60
14.3.1
To start and stop forced cooling using the indoor unit ON/OFF switch ....................................................... 60
14.3.2
To start and stop forced cooling using the indoor unit user interface ......................................................... 60
15.1
Wiring diagram................................................................................................................................................................ 62
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Installer reference guide
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