Daikin FXFA20A2VEB, Installer And User Reference Manual

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Table of contents
Installer and user reference guide
3
FXFA20~125A2VEB
VRV system air conditioner
4P599624-1A – 2020.06
13 Disposal 45
For the installer 46
14 About the box 47
14.1 Overview: About the box ................................................................................................................................................ 47
14.2 Indoor unit ...................................................................................................................................................................... 47
14.2.1
To unpack and handle the unit ...................................................................................................................... 47
14.2.2 To remove the accessories from the indoor unit .......................................................................................... 48
15 About the units and options 49
15.1 Identification ................................................................................................................................................................... 49
15.1.1
Identification label: Indoor unit ..................................................................................................................... 49
15.2 About the indoor unit ..................................................................................................................................................... 49
15.3 System layout.................................................................................................................................................................. 49
15.4 Combining units and options.......................................................................................................................................... 50
15.4.1
Possible options for the indoor unit............................................................................................................... 50
16 Unit installation 52
16.1 Preparing the installation site......................................................................................................................................... 52
16.1.1
Installation site requirements of the indoor unit .......................................................................................... 52
16.2 Mounting the indoor unit ............................................................................................................................................... 54
16.2.1
Guidelines when installing the indoor unit.................................................................................................... 54
16.2.2 Guidelines when installing the drain piping................................................................................................... 57
17 Piping installation 61
17.1 Preparing refrigerant piping ........................................................................................................................................... 61
17.1.1
Refrigerant piping requirements.................................................................................................................... 61
17.1.2 Refrigerant piping insulation.......................................................................................................................... 62
17.2 Connecting the refrigerant piping .................................................................................................................................. 62
17.2.1
About connecting the refrigerant piping ....................................................................................................... 62
17.2.2 Precautions when connecting the refrigerant piping.................................................................................... 63
17.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 63
17.2.4 Pipe bending guidelines ................................................................................................................................. 64
17.2.5 To flare the pipe end ...................................................................................................................................... 64
17.2.6 To connect the refrigerant piping to the indoor unit .................................................................................... 65
18 Electrical installation 67
18.1 About connecting the electrical wiring .......................................................................................................................... 67
18.1.1
Precautions when connecting the electrical wiring....................................................................................... 67
18.1.2 Guidelines when connecting the electrical wiring......................................................................................... 68
18.1.3 Specifications of standard wiring components.............................................................................................. 69
18.2 To connect the electrical wiring to the indoor unit ....................................................................................................... 70
19 Commissioning 72
19.1 Overview: Commissioning .............................................................................................................................................. 72
19.2 Precautions when commissioning .................................................................................................................................. 72
19.3 Checklist before commissioning..................................................................................................................................... 73
19.4 To perform a test run...................................................................................................................................................... 73
20 Configuration 74
20.1 Field setting..................................................................................................................................................................... 74
21 Hand-over to the user 78
22 Troubleshooting 79
22.1 Solving problems based on error codes ......................................................................................................................... 79
22.1.1
Error codes: Overview .................................................................................................................................... 79
23 Disposal 81
24 Technical data 82
24.1 Wiring diagram................................................................................................................................................................ 82
24.1.1
Unified wiring diagram legend ....................................................................................................................... 82
25 Glossary 85