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FHA-A(9)
Split system air conditioner
4P708119-1 - 2022.11
14.1
Indoor unit ...................................................................................................................................................................... 45
14.1.1
To unpack and handle the unit ...................................................................................................................... 45
14.1.2
To remove the accessories from the indoor unit .......................................................................................... 46
15.1
Identification ................................................................................................................................................................... 48
15.1.1
Identification label: Indoor unit ..................................................................................................................... 48
15.2
About the indoor unit ..................................................................................................................................................... 48
15.3
System layout.................................................................................................................................................................. 48
15.4
Combining units and options.......................................................................................................................................... 49
15.4.1
Possible options for the indoor unit............................................................................................................... 49
16.1
Preparing the installation site......................................................................................................................................... 50
16.1.1
Installation site requirements of the indoor unit .......................................................................................... 50
16.2
Mounting the indoor unit ............................................................................................................................................... 52
16.2.1
Guidelines when installing the indoor unit.................................................................................................... 52
16.2.2
Guidelines when installing the drain piping................................................................................................... 55
17.1
Preparing refrigerant piping ........................................................................................................................................... 59
17.1.1
Refrigerant piping requirements.................................................................................................................... 59
17.1.2
Refrigerant piping insulation.......................................................................................................................... 60
17.2
Connecting the refrigerant piping .................................................................................................................................. 60
17.2.1
About connecting the refrigerant piping ....................................................................................................... 60
17.2.2
Precautions when connecting the refrigerant piping.................................................................................... 61
17.2.3
Guidelines when connecting the refrigerant piping...................................................................................... 62
17.2.4
Pipe bending guidelines ................................................................................................................................. 62
17.2.5
To flare the pipe end ...................................................................................................................................... 62
17.2.6
To connect the refrigerant piping to the indoor unit .................................................................................... 63
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.............................................................................................. 70
18.2
To connect the electrical wiring to the indoor unit ....................................................................................................... 70
19.1
To mount the suction grille and decoration side panel ................................................................................................. 74
20.1
Overview: Commissioning .............................................................................................................................................. 75
20.2
Precautions when commissioning .................................................................................................................................. 75
20.3
Checklist before commissioning..................................................................................................................................... 76
20.4
To perform a test run...................................................................................................................................................... 76
21.1
Field setting..................................................................................................................................................................... 78
23.1
Solving problems based on error codes ......................................................................................................................... 83
23.1.1
Error codes: Overview .................................................................................................................................... 83
25.1
Wiring diagram................................................................................................................................................................ 85
25.1.1
Unified wiring diagram legend ....................................................................................................................... 85
Table of contents
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Installer and user reference guide
3
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Table of Contents
Troubleshooting
