Daikin VRV 5 RXYA8A7Y1B Installation And Operation Manual

Also see for VRV 5 RXYA10A7Y1B: Installer and user guide

12 About the units and optionsInstallation and operation manual18RYMA5+RXYA8~20A7Y1BVRV 5 heat pump4P739915-1 – 2023.12Accessory pipes HP Øa [mm] Øb [mm]Liquid pipe▪ Front connectionID ØbID Øa▪ Bottom connectionID ØbID Øa5 9.5 9.581012 12.714 12.7161820Equaliser pipe▪ Front connectionID ØaID Øb▪ Bottom connectionID ØaOD Øb5~12 25.4 19.111.3 To remove the transportation stay(only for 5~12 HP)NOTICEIf the unit is operated with the transportation stay attached,abnormal vibration or noise may be generated.The transportation stay for protecting the unit during transport mustbe removed. Proceed as shown in the figure and procedure below.1 Remove the bolt (a) and washers.2 Remove the transportation stay (b) as shown in the figurebelow.12(12.3 N·m)aba Boltb Transportation stay12 About the units and options12.1 About the outdoor unitThis installation manual concerns the VRV 5, full inverter driven,heat pump system.Model line up:Model DescriptionRXYA8~12 Heat pump model, for single or multi-useRXYA14~20 Heat pump model, for single use(standalone unit)RYMA5 Heat pump model, only for multi-use andonly for standard combinationsDepending on the type of outdoor unit which is chosen, somefunctionality will or will not exist. It will be indicated throughout thisinstallation manual and brought to your attention. Certain featureshave exclusive model rights.These units are intended for outdoor installation and aimed for heatpump applications including air to air applications.These units have (in single use) heating capacities ranging from 25to 63 kW and cooling capacities rating from 22.4 to 56 kW. In multicombination the heating capacity can go up to 56 kW and in coolingto 62.5 kW.The outdoor unit is designed to work at the following ambienttemperatures:▪ in heating mode from –20°C WB to 15.5°C WB▪ in cooling mode from –5°C DB to 46°C DB12.2 System layoutWARNINGThe installation MUST comply with the requirements thatapply to this R32 equipment. For more information, see"13 Special requirements for R32 units" [419].NOTICEIt is NOT allowed to cool technical rooms like server roomsand data centres, where year-round cooling is required.INFORMATIONThe following figure is an example and may NOTcompletely match your system layoutacd egifeccehi i ibeja Heat pump outdoor unitb Safety valve unit (SV)c VRV direct expansion (DX) indoor unitd VRV direct expansion (DX) indoor unit (direct connectionfrom outdoor to indoor)e Remote controller in normal modef Remote controller in alarm only modeg Remote controller in supervisor mode (mandatory insome situations)h Centralised controller (optional)i Option PCB (optional)j Cool/heat changeover remote control switch (optional)Refrigerant pipingInterconnection and user interface wiringDirect connection of indoor units to the outdoor unit