Daikin VRV 5-S Series, Installer And User Reference Manual

Page: 4 / 164

Table of contents
Installer and user reference guide
4
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1 – 2020.01
18.2 Connecting the refrigerant piping .................................................................................................................................. 81
18.2.1
About connecting the refrigerant piping ....................................................................................................... 81
18.2.2 Precautions when connecting the refrigerant piping.................................................................................... 81
18.2.3 Pipe bending guidelines ................................................................................................................................. 82
18.2.4 To braze the pipe end..................................................................................................................................... 82
18.2.5 Using the stop valve and service port............................................................................................................ 83
18.2.6 To remove the spun pipes.............................................................................................................................. 84
18.2.7 To connect the refrigerant piping to the outdoor unit ................................................................................. 85
18.2.8 To connect the refrigerant branching kit....................................................................................................... 87
18.3 Checking the refrigerant piping...................................................................................................................................... 88
18.3.1
About checking the refrigerant piping ........................................................................................................... 88
18.3.2 Checking refrigerant piping: General guidelines ........................................................................................... 89
18.3.3 Checking refrigerant piping: Setup ................................................................................................................ 89
18.3.4 To perform a leak test .................................................................................................................................... 90
18.3.5 To perform vacuum drying............................................................................................................................. 90
19 Charging refrigerant 92
19.1 About charging refrigerant ............................................................................................................................................. 92
19.2 About the refrigerant...................................................................................................................................................... 93
19.3 Precautions when charging refrigerant.......................................................................................................................... 94
19.4 To determine the additional refrigerant amount .......................................................................................................... 96
19.5 To charge refrigerant ...................................................................................................................................................... 97
19.6 Error codes when charging refrigerant .......................................................................................................................... 99
19.7 To fix the fluorinated greenhouse gases label ............................................................................................................... 99
19.8 To check for refrigerant leaks after charging ................................................................................................................. 100
20 Electrical installation 101
20.1 About connecting the electrical wiring .......................................................................................................................... 101
20.1.1
Precautions when connecting the electrical wiring....................................................................................... 101
20.1.2 Field wiring: Overview .................................................................................................................................... 102
20.1.3 Guidelines when knocking out knockout holes ............................................................................................. 104
20.1.4 Guidelines when connecting the electrical wiring......................................................................................... 104
20.1.5 About electrical compliance........................................................................................................................... 105
20.1.6 Safety device requirements ........................................................................................................................... 106
20.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 107
20.3 To connect the external outputs .................................................................................................................................... 110
21 Finishing the outdoor unit installation 112
21.1 To insulate the refrigerant piping................................................................................................................................... 112
21.2 To close the outdoor unit ............................................................................................................................................... 115
21.3 To check the insulation resistance of the compressor .................................................................................................. 115
22 Configuration 116
22.1 Overview: Configuration................................................................................................................................................. 116
22.2 Making field settings....................................................................................................................................................... 117
22.2.1
About making field settings............................................................................................................................ 117
22.2.2 To access the field setting components......................................................................................................... 118
22.2.3 Field setting components............................................................................................................................... 118
22.2.4 To access mode 1 or 2.................................................................................................................................... 119
22.2.5 To use mode 1 ................................................................................................................................................ 120
22.2.6 To use mode 2 ................................................................................................................................................ 121
22.2.7 Mode 1: Monitoring settings ......................................................................................................................... 122
22.2.8 Mode 2: Field settings .................................................................................................................................... 123
22.3 Energy saving and optimum operation .......................................................................................................................... 129
22.3.1
Available main operation methods................................................................................................................ 129
22.3.2 Available comfort settings.............................................................................................................................. 130
22.3.3 Example: Automatic mode during cooling..................................................................................................... 132
22.3.4 Example: Automatic mode during heating .................................................................................................... 133
23 Commissioning 135
23.1 Precautions when commissioning .................................................................................................................................. 135
23.2 Checklist before commissioning..................................................................................................................................... 136
23.3 Checklist during commissioning ..................................................................................................................................... 137
23.4 About the test run........................................................................................................................................................... 137
23.5 To perform a test run (7-segments display)................................................................................................................... 137
23.6 Correcting after abnormal completion of the test run .................................................................................................. 138
24 Hand-over to the user 139
25 Maintenance and service 140
25.1 Overview: Maintenance and service .............................................................................................................................. 140