Table of contents
Installer reference guide
3
RXTM30+40N2V1B + RXTP25+35N2V1B9 + RXTP25+35N2V1B8 +
ARXTP25+35N2V1B + RXTA30N2V1B
R32 split series
4P518023-7H – 2020.08
8.6 To charge additional refrigerant..................................................................................................................................... 45
8.7 To fix the fluorinated greenhouse gases label ............................................................................................................... 46
9 Electrical installation 47
9.1 About connecting the electrical wiring .......................................................................................................................... 47
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 47
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 49
9.1.3 Specifications of standard wiring components.............................................................................................. 50
9.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 50
10 Finishing the outdoor unit installation 52
10.1 To finish the outdoor unit installation............................................................................................................................ 52
10.2 To close the outdoor unit ............................................................................................................................................... 52
11 Configuration 53
11.1 Facility setting ................................................................................................................................................................. 53
11.1.1 To set the facility mode.................................................................................................................................. 53
12 Commissioning 54
12.1 Overview: Commissioning .............................................................................................................................................. 54
12.2 Precautions when commissioning .................................................................................................................................. 54
12.3 Checklist before commissioning ..................................................................................................................................... 54
12.4 Checklist during commissioning ..................................................................................................................................... 55
12.5 To perform a test run...................................................................................................................................................... 55
12.6 Starting up the outdoor unit........................................................................................................................................... 56
13 Hand-over to the user 57
14 Maintenance and service 58
14.1 Overview: Maintenance and service .............................................................................................................................. 58
14.2 Maintenance safety precautions .................................................................................................................................... 58
14.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 58
14.4 About the compressor .................................................................................................................................................... 59
15 Troubleshooting 60
15.1 Overview: Troubleshooting ............................................................................................................................................ 60
15.2 Precautions when troubleshooting ................................................................................................................................ 60
15.3 Solving problems based on symptoms........................................................................................................................... 60
15.3.1 Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 60
15.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 61
15.3.3 Symptom: Water leakage............................................................................................................................... 61
15.3.4 Symptom: Electrical leakage .......................................................................................................................... 61
15.3.5 Symptom: Unit does NOT function or burn damage..................................................................................... 61
15.4 Fault diagnosis using LED on outdoor unit PCB.............................................................................................................. 61
16 Disposal 62
16.1 Overview: Disposal.......................................................................................................................................................... 62
16.2 To pump down ................................................................................................................................................................ 62
16.3 To start and stop forced cooling..................................................................................................................................... 63
16.3.1 To start and stop forced cooling using the indoor unit ON/OFF switch ....................................................... 63
16.3.2 To start and stop forced cooling using the indoor unit user interface ......................................................... 63
17 Technical data 64
17.1 Wiring diagram................................................................................................................................................................ 64
17.1.1 Unified wiring diagram legend ....................................................................................................................... 64
17.2 Piping diagram ................................................................................................................................................................ 67
17.2.1 Piping diagram: Outdoor unit......................................................................................................................... 67
18 Glossary 68