Daikin RXYTQ48U7YF [4/152] Table of contents

Daikin RXYTQ10U7YF [4/152] Table of contents
Table of contents
Installer and user reference guide
4
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1A – 2020.10
18.2.6 To connect the multi connection piping kit................................................................................................... 79
18.2.7 To connect the refrigerant branching kit....................................................................................................... 79
18.2.8 To protect against contamination.................................................................................................................. 80
18.2.9 To braze the pipe end..................................................................................................................................... 80
18.2.10 Using the stop valve and service port............................................................................................................ 81
18.2.11 To remove the spun pipes.............................................................................................................................. 83
18.3 Checking the refrigerant piping...................................................................................................................................... 84
18.3.1 About checking the refrigerant piping........................................................................................................... 84
18.3.2 Checking refrigerant piping: General guidelines ........................................................................................... 85
18.3.3 Checking refrigerant piping: Setup ................................................................................................................ 86
18.3.4 To perform a leak test .................................................................................................................................... 86
18.3.5 To perform vacuum drying............................................................................................................................. 87
18.3.6 To insulate the refrigerant piping .................................................................................................................. 87
18.4 Charging refrigerant........................................................................................................................................................ 88
18.4.1 Precautions when charging refrigerant ......................................................................................................... 88
18.4.2 About charging refrigerant............................................................................................................................. 89
18.4.3 To determine the additional refrigerant amount.......................................................................................... 89
18.4.4 To charge refrigerant: Flow chart .................................................................................................................. 91
18.4.5 To charge refrigerant...................................................................................................................................... 92
18.4.6 Step 6: To manually charge refrigerant ......................................................................................................... 94
18.4.7 Error codes when charging refrigerant.......................................................................................................... 95
18.4.8 Checks after charging refrigerant .................................................................................................................. 95
19 Electrical installation 97
19.1 About connecting the electrical wiring .......................................................................................................................... 97
19.1.1 Precautions when connecting the electrical wiring....................................................................................... 97
19.1.2 Field wiring: Overview .................................................................................................................................... 99
19.1.3 About the electrical wiring ............................................................................................................................. 99
19.1.4 Guidelines when knocking out knockout holes ............................................................................................. 100
19.1.5 Safety device requirements ........................................................................................................................... 100
19.2 To route and fix the transmission wiring........................................................................................................................ 101
19.3 To connect the transmission wiring ............................................................................................................................... 103
19.4 To finish the transmission wiring.................................................................................................................................... 104
19.5 To route and fix the power supply ................................................................................................................................. 104
19.6 To connect the power supply ......................................................................................................................................... 105
19.7 To check the insulation resistance of the compressor .................................................................................................. 106
20 Configuration 107
20.1 Overview: Configuration................................................................................................................................................. 107
20.2 Making field settings....................................................................................................................................................... 107
20.2.1 About making field settings............................................................................................................................ 107
20.2.2 Field setting components............................................................................................................................... 108
20.2.3 To access the field setting components......................................................................................................... 108
20.2.4 To access mode 1 or 2.................................................................................................................................... 109
20.2.5 To use mode 1 ................................................................................................................................................ 110
20.2.6 To use mode 2 ................................................................................................................................................ 111
20.2.7 Mode 1: Monitoring settings ......................................................................................................................... 112
20.2.8 Mode 2: Field settings .................................................................................................................................... 114
20.2.9 To connect the PC configurator to the outdoor unit..................................................................................... 118
20.3 Energy saving and optimum operation .......................................................................................................................... 118
20.3.1 Available main operation methods................................................................................................................ 119
20.3.2 Available comfort settings.............................................................................................................................. 120
20.3.3 Example: Automatic mode during cooling..................................................................................................... 122
20.3.4 Example: Automatic mode during heating .................................................................................................... 123
21 Commissioning 125
21.1 Overview: Commissioning .............................................................................................................................................. 125
21.2 Precautions when commissioning.................................................................................................................................. 125
21.3 Checklist before commissioning..................................................................................................................................... 126
21.4 About the test run........................................................................................................................................................... 127
21.5 To perform a test run...................................................................................................................................................... 128
21.6 Correcting after abnormal completion of the test run .................................................................................................. 129
21.7 Operating the unit........................................................................................................................................................... 129
22 Hand-over to the user 130
23 Maintenance and service 131
23.1 Maintenance safety precautions.................................................................................................................................... 131
23.1.1 To prevent electrical hazards ......................................................................................................................... 131
23.2 About service mode operation....................................................................................................................................... 132
23.2.1 To use vacuum mode ..................................................................................................................................... 132

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