Daikin 3MXM40N2V1B8, Installer'S Reference Manual

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Table of contents
Installer reference guide
3
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1C – 2020.08
8.5 To determine the complete recharge amount .............................................................................................................. 49
8.6 To charge additional refrigerant..................................................................................................................................... 50
8.7 To fix the fluorinated greenhouse gases label ............................................................................................................... 50
9 Electrical installation 51
9.1 About connecting the electrical wiring .......................................................................................................................... 51
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 51
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 53
9.1.3 Specifications of standard wiring components.............................................................................................. 54
9.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 55
10 Finishing the outdoor unit installation 57
10.1 To finish the outdoor unit installation............................................................................................................................ 57
10.2 To close the outdoor unit ............................................................................................................................................... 57
11 Configuration 58
11.1 About standby electricity saving function ...................................................................................................................... 58
11.1.1
To turn on standby electricity saving function .............................................................................................. 58
11.2 About priority room function ......................................................................................................................................... 59
11.2.1
To set the priority room function................................................................................................................... 59
11.3 About night quiet mode.................................................................................................................................................. 59
11.3.1
To turn on the night quiet mode.................................................................................................................... 59
11.4 About heat mode lock .................................................................................................................................................... 60
11.4.1
To turn on heat mode lock............................................................................................................................. 60
11.5 About cool mode lock ..................................................................................................................................................... 60
11.5.1
To turn on cool mode lock ............................................................................................................................. 60
12 Commissioning 62
12.1 Overview: Commissioning .............................................................................................................................................. 62
12.2 Precautions when commissioning .................................................................................................................................. 62
12.3 Checklist before commissioning..................................................................................................................................... 62
12.4 Checklist during commissioning ..................................................................................................................................... 63
12.5 Trial operation and testing ............................................................................................................................................. 63
12.5.1
About wiring error check................................................................................................................................ 64
12.5.2 To perform a test run ..................................................................................................................................... 65
12.6 Starting up the outdoor unit........................................................................................................................................... 65
13 Hand-over to the user 66
14 Maintenance and service 67
14.1 Overview: Maintenance and service .............................................................................................................................. 67
14.2 Maintenance safety precautions.................................................................................................................................... 67
14.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 67
14.4 About the compressor .................................................................................................................................................... 68
15 Troubleshooting 69
15.1 Overview: Troubleshooting ............................................................................................................................................ 69
15.2 Precautions when troubleshooting ................................................................................................................................ 69
15.3 Solving problems based on symptoms........................................................................................................................... 69
15.3.1
Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 69
15.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 70
15.3.3 Symptom: Water leakage............................................................................................................................... 70
15.3.4 Symptom: Electrical leakage .......................................................................................................................... 70
15.3.5 Symptom: Priority room setting does NOT function ..................................................................................... 70
15.3.6 Symptom: Unit does NOT function or burn damage..................................................................................... 70
15.4 Solving problems based on LED behaviour .................................................................................................................... 71
15.4.1
Fault diagnosis using LED on outdoor unit PCB ............................................................................................. 71
16 Disposal 73
16.1 Overview: Disposal.......................................................................................................................................................... 73
16.2 To pump down ................................................................................................................................................................ 73
16.3 To start and stop forced cooling..................................................................................................................................... 74
17 Technical data 76
17.1 Wiring diagram................................................................................................................................................................ 76
17.1.1
Unified wiring diagram legend ....................................................................................................................... 76
17.2 Piping diagram: Outdoor unit ......................................................................................................................................... 78
18 Glossary 83