VRV IV Heat Pump (RXYQ) Overview Lineup Technology Features Resources Daikin’s VRV IV systems integrate advanced technology to provide comfort control with maximum energy efficiency and reliabilty. Currently available in heat pump and heat recovery configurations,VRV IV provides a solution for multi-family residential to large commercial applications desiring heating or cooling. The VRV IV is the first variable refrigerant flow (VRF) system to be assembled in North America. What’s new about VRV IV? Optimized Installation with New Unit Ranges for low total Life Cycle Cost (LCC) Larger capacity single modules now range up to 14 tons. Modules can be combined to provide up to 34 tons from three modules on a single piping network, saving installation cost by reducing piping and electrical connections. Plus, system components allow flexibility to handle future building changes while minimizing retrofit requirements. Energy Efficiency with Variable Refrigerant Temperature (VRT) VRV IV’s revolutionary Variable Refrigerant Temperature control automatically adapts to the unique requirements of your building and climate, significantly reducing seasonal operational cost compared to VRV III. Customize your operation between Automatic Mode, High Sensible Mode or Basic Mode to suit the application’s needs.