The Variable Refrigerant Flow portfolio is a comprehensive line-up of outdoor units, indoor units with a wide range of capacities and configurations, and a control platform that ties it all together. We offer the flexibility to meet the application requirements of most building types. Whether your project is a historic building without duct work, a building with flexible occupancy needs such as a school, church or arena, or new construction that will be finished by tenants, the Trane® Variable Refrigerant Volume system can help. Contact your local Trane sales account representative for more information.