Table of contents
Installer and user reference guide
3
FXDA10~63A2VEB
VRV system air conditioner
4P599621-1A – 2020.10
14 About the box 41
14.1 Overview: About the box ................................................................................................................................................ 41
14.2 Indoor unit ...................................................................................................................................................................... 41
14.2.1 To unpack and handle the unit ...................................................................................................................... 41
14.2.2 To remove the accessories from the indoor unit .......................................................................................... 41
15 About the units and options 43
15.1 Identification ................................................................................................................................................................... 43
15.1.1 Identification label: Indoor unit ..................................................................................................................... 43
15.2 About the indoor unit ..................................................................................................................................................... 43
15.3 System layout.................................................................................................................................................................. 43
15.4 Combining units and options.......................................................................................................................................... 44
15.4.1 Possible options for the indoor unit............................................................................................................... 44
16 Unit installation 46
16.1 Preparing the installation site......................................................................................................................................... 46
16.1.1 Installation site requirements of the indoor unit .......................................................................................... 46
16.2 Mounting the indoor unit ............................................................................................................................................... 49
16.2.1 Guidelines when installing the indoor unit.................................................................................................... 49
16.2.2 Guidelines when installing the ducting.......................................................................................................... 51
16.2.3 Guidelines when installing the drain piping................................................................................................... 52
17 Piping installation 57
17.1 Preparing refrigerant piping ........................................................................................................................................... 57
17.1.1 Refrigerant piping requirements.................................................................................................................... 57
17.1.2 Refrigerant piping insulation.......................................................................................................................... 58
17.2 Connecting the refrigerant piping .................................................................................................................................. 58
17.2.1 About connecting the refrigerant piping ....................................................................................................... 58
17.2.2 Precautions when connecting the refrigerant piping.................................................................................... 59
17.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 59
17.2.4 Pipe bending guidelines ................................................................................................................................. 60
17.2.5 To flare the pipe end ...................................................................................................................................... 60
17.2.6 To connect the refrigerant piping to the indoor unit .................................................................................... 61
18 Electrical installation 62
18.1 About connecting the electrical wiring .......................................................................................................................... 62
18.1.1 Precautions when connecting the electrical wiring....................................................................................... 62
18.1.2 Guidelines when connecting the electrical wiring......................................................................................... 63
18.1.3 Specifications of standard wiring components.............................................................................................. 64
18.2 To connect the electrical wiring to the indoor unit ....................................................................................................... 65
19 Commissioning 67
19.1 Overview: Commissioning .............................................................................................................................................. 67
19.2 Precautions when commissioning .................................................................................................................................. 67
19.3 Checklist before commissioning ..................................................................................................................................... 68
19.4 To perform a test run...................................................................................................................................................... 68
20 Configuration 69
20.1 Field setting..................................................................................................................................................................... 69
21 Hand-over to the user 72
22 Troubleshooting 73
22.1 Solving problems based on error codes ......................................................................................................................... 73
22.1.1 Error codes: Overview .................................................................................................................................... 73
23 Disposal 75
24 Technical data 76
24.1 Wiring diagram................................................................................................................................................................ 76
24.1.1 Unified wiring diagram legend ....................................................................................................................... 76
25 Glossary 79
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