Daikin R32 Series Installer's Reference Manual page 3

3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1B - 2020.05
6.6.2 Precautions when charging refrigerant ......................................................................................................... 43
6.6.3 About the refrigerant ..................................................................................................................................... 43
6.6.4 To determine the additional refrigerant amount .......................................................................................... 44
6.6.5 To determine the complete recharge amount .............................................................................................. 44
6.6.6 To charge additional refrigerant .................................................................................................................... 44
6.6.7 To fix the fluorinated greenhouse gases label............................................................................................... 45
6.7 Connecting the electrical wiring..................................................................................................................................... 46
6.7.1 About connecting the electrical wiring .......................................................................................................... 46
6.7.2 Precautions when connecting the electrical wiring....................................................................................... 46
6.7.3 Guidelines when connecting the electrical wiring......................................................................................... 47
6.7.4 Specifications of standard wiring components.............................................................................................. 48
6.7.5 To connect the electrical wiring to the outdoor unit .................................................................................... 49
6.8 Finishing the outdoor unit installation ........................................................................................................................... 50
6.8.1 To finish the outdoor unit installation ........................................................................................................... 50
6.8.2 About standby electricity saving function...................................................................................................... 51
6.8.3 About priority room function......................................................................................................................... 51
6.8.4 About night quiet mode ................................................................................................................................. 52
6.8.5 About heat mode lock .................................................................................................................................... 53
6.8.6 About cool mode lock..................................................................................................................................... 53
6.8.7 To close the outdoor unit............................................................................................................................... 53
7 Commissioning
7.1 Overview: Commissioning .............................................................................................................................................. 55
7.2 Precautions when commissioning .................................................................................................................................. 55
7.3 Checklist before commissioning..................................................................................................................................... 55
7.4 Checklist during commissioning ..................................................................................................................................... 56
7.5 Trial operation and testing ............................................................................................................................................. 56
7.5.1 About wiring error check................................................................................................................................ 56
7.5.2 To perform a test run ..................................................................................................................................... 57
7.6 Starting up the outdoor unit........................................................................................................................................... 58
7.7 Fault diagnosis using LED on outdoor unit PCB.............................................................................................................. 58
8 Hand-over to the user
9 Maintenance and service
9.1 Overview: Maintenance and service .............................................................................................................................. 61
9.2 Maintenance safety precautions.................................................................................................................................... 61
9.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 61
9.4 About the compressor .................................................................................................................................................... 61
10 Troubleshooting
10.1 Overview: Troubleshooting ............................................................................................................................................ 63
10.2 Precautions when troubleshooting ................................................................................................................................ 63
10.3 Solving problems based on symptoms........................................................................................................................... 63
10.3.1 Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 63
10.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 64
10.3.3 Symptom: Water leakage............................................................................................................................... 64
10.3.4 Symptom: Electrical leakage .......................................................................................................................... 64
10.3.5 Symptom: Priority room setting does NOT function ..................................................................................... 64
10.3.6 Symptom: Unit does NOT function or burn damage..................................................................................... 64
11 Disposal
11.1 Overview: Disposal.......................................................................................................................................................... 65
11.2 To pump down ................................................................................................................................................................ 65
11.3 To start and stop forced cooling..................................................................................................................................... 66
12 Technical data
12.1 Wiring diagram................................................................................................................................................................ 68
12.1.1 Unified wiring diagram legend ....................................................................................................................... 68
12.2 Piping diagram: Outdoor unit ......................................................................................................................................... 70
13 Glossary
Table of contents
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Installer reference guide
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