Daikin FXKQ20AMVEB User Reference Manual page 3

FXKQ-A
VRV system air conditioner
4P747548-1 - 2023.11
For the installer
14 About the box
14.1 Indoor unit......................................................................................................................................................................
14.1.1 To unpack and handle the unit......................................................................................................................
14.1.2 To remove the accessories from the indoor unit..........................................................................................
15 About the units and options
15.1 Identification ..................................................................................................................................................................
15.1.1 Identification label: Indoor unit.....................................................................................................................
15.2 About the indoor unit.....................................................................................................................................................
15.3 Components ...................................................................................................................................................................
15.4 Combining units and options .........................................................................................................................................
15.4.1 Possible options for the indoor unit..............................................................................................................
16 Unit installation
16.1 Preparing the installation site ........................................................................................................................................
16.1.1 Installation site requirements of the indoor unit..........................................................................................
16.2 Mounting the indoor unit...............................................................................................................................................
16.2.1 Guidelines when installing the indoor unit ...................................................................................................
16.2.2 Guidelines when installing the drain piping ..................................................................................................
17 Piping installation
17.1 Preparing refrigerant piping...........................................................................................................................................
17.1.1 Refrigerant piping requirements ...................................................................................................................
17.1.2 Refrigerant piping insulation .........................................................................................................................
17.2 Connecting the refrigerant piping..................................................................................................................................
17.2.1 About connecting the refrigerant piping ......................................................................................................
17.2.2 Precautions when connecting the refrigerant piping ...................................................................................
17.2.3 Guidelines when connecting the refrigerant piping .....................................................................................
17.2.4 Pipe bending guidelines.................................................................................................................................
17.2.5 To flare the pipe end .....................................................................................................................................
17.2.6 To connect the refrigerant piping to the indoor unit ...................................................................................
18 Electrical installation
18.1 About connecting the electrical wiring..........................................................................................................................
18.1.1 Precautions when connecting the electrical wiring......................................................................................
18.1.2 Guidelines when connecting the electrical wiring ........................................................................................
18.1.3 Specifications of standard wiring components.............................................................................................
18.2 To connect the electrical wiring to the indoor unit.......................................................................................................
19 Commissioning
19.1 Overview: Commissioning..............................................................................................................................................
19.2 Precautions when commissioning .................................................................................................................................
19.3 Checklist before commissioning ....................................................................................................................................
19.4 To perform a test run .....................................................................................................................................................
20 Configuration
20.1 Field setting ....................................................................................................................................................................
21 Hand-over to the user
22 Troubleshooting
22.1 Solving problems based on error codes ........................................................................................................................
22.1.1 Error codes: Overview ...................................................................................................................................
23 Disposal
24 Technical data
24.1 Wiring diagram ...............................................................................................................................................................
24.1.1 Unified wiring diagram legend ......................................................................................................................
25 Glossary
Table of contents
40
41
41
41
41
43
43
43
43
43
44
44
45
45
45
46
46
49
53
53
53
54
54
54
55
55
56
56
57
59
59
59
60
61
62
65
65
65
66
66
67
67
71
72
72
72
73
74
74
74
77
Installer and user reference guide
3