Daikin VRV IV W+ Series Installer And User Reference Manual

Also see for RWEYQ10T9Y1B: Installer and user guide Installation and operation manual Installation and operation manual

Table of contentsInstaller and user reference guide4RWEYQ8~14T9Y1BVRV IV water-cooled system air conditioner4P452191-1B – 2020.1018.3 Connecting the refrigerant piping .................................................................................................................................. 8318.3.1 About connecting the refrigerant piping ....................................................................................................... 8318.3.2 Precautions when connecting the refrigerant piping.................................................................................... 8318.3.3 To route the refrigerant piping ...................................................................................................................... 8418.3.4 To connect the refrigerant piping to the outdoor unit ................................................................................. 8418.3.5 To connect the multi connection piping kit ................................................................................................... 8518.3.6 To connect the refrigerant branching kit....................................................................................................... 8618.3.7 To protect against contamination.................................................................................................................. 8618.3.8 To braze the pipe end..................................................................................................................................... 8618.3.9 Using the stop valve and service port............................................................................................................ 8718.3.10 To remove the spun pipes.............................................................................................................................. 8918.4 Checking the refrigerant piping...................................................................................................................................... 9118.4.1 About checking the refrigerant piping ........................................................................................................... 9118.4.2 Checking refrigerant piping: General guidelines ........................................................................................... 9218.4.3 Checking refrigerant piping: Setup ................................................................................................................ 9318.4.4 To perform a leak test .................................................................................................................................... 9318.4.5 To perform vacuum drying............................................................................................................................. 9418.4.6 To insulate the refrigerant piping .................................................................................................................. 9518.5 Charging refrigerant........................................................................................................................................................ 9518.5.1 Precautions when charging refrigerant ......................................................................................................... 9518.5.2 About charging refrigerant............................................................................................................................. 9618.5.3 To determine the additional refrigerant amount .......................................................................................... 9618.5.4 To charge refrigerant...................................................................................................................................... 9818.5.5 Checks after charging refrigerant .................................................................................................................. 10018.5.6 To fix the fluorinated greenhouse gases label............................................................................................... 10018.6 Connecting water piping................................................................................................................................................. 10118.6.1 About connecting the water piping ............................................................................................................... 10118.6.2 Precautions when connecting the water piping............................................................................................ 10118.6.3 To connect the water piping .......................................................................................................................... 10118.6.4 To fill the water circuit ................................................................................................................................... 10218.6.5 To insulate the water piping .......................................................................................................................... 10219 Electrical installation 10319.1 About connecting the electrical wiring .......................................................................................................................... 10319.1.1 Precautions when connecting the electrical wiring....................................................................................... 10319.1.2 Field wiring: Overview .................................................................................................................................... 10519.1.3 About the electrical wiring ............................................................................................................................. 10519.1.4 About electrical compliance........................................................................................................................... 10719.1.5 Safety device requirements ........................................................................................................................... 10819.2 To route and fix the transmission wiring........................................................................................................................ 10919.3 To connect the transmission wiring ............................................................................................................................... 10919.4 To finish the transmission wiring.................................................................................................................................... 11119.5 To route and fix the power supply ................................................................................................................................. 11119.6 To connect the power supply ......................................................................................................................................... 11219.7 To connect the optional wiring....................................................................................................................................... 11319.8 To check the insulation resistance of the compressor .................................................................................................. 11520 Configuration 11620.1 Overview: Configuration................................................................................................................................................. 11620.2 Making field settings....................................................................................................................................................... 11620.2.1 About making field settings............................................................................................................................ 11620.2.2 Field setting components............................................................................................................................... 11720.2.3 To access the field setting components......................................................................................................... 11820.2.4 To access mode 1 or 2.................................................................................................................................... 11820.2.5 To use mode 1 ................................................................................................................................................ 11920.2.6 To use mode 2 ................................................................................................................................................ 12020.2.7 Mode 1: Monitoring settings ......................................................................................................................... 12120.2.8 Mode 2: Field settings .................................................................................................................................... 12220.2.9 To connect the PC configurator to the outdoor unit..................................................................................... 12721 Commissioning 12821.1 Overview: Commissioning .............................................................................................................................................. 12821.2 Precautions when commissioning .................................................................................................................................. 12821.3 Checklist before commissioning..................................................................................................................................... 12921.4 About the test run........................................................................................................................................................... 13021.5 To perform a test run...................................................................................................................................................... 13121.6 Correcting after abnormal completion of the test run .................................................................................................. 13221.7 Operating the unit........................................................................................................................................................... 13222 Maintenance and service 13322.1 Maintenance safety precautions.................................................................................................................................... 133