The VRF tech is an efficient means of regulating the temperature within a commercial building. Although it is a complex concept, you can think of it as an enhanced version of ductless mini-splits for simple understanding. The system uses heat pumps or heat recovery systems to ensure proper cooling of indoor and outdoor units. The main difference between the heat recovery systems and heat pumps is that the prior is designed to offer heating and cooling services. The VRF system doesn’t rely on air ducts and utilizes multiple indoor units with a single outdoor condensing unit. The condensing unit features inverter-driven fans that means it can operate at different speeds by adjusting the frequency of the power supply. In VRF systems, how much refrigerant will be delivered by the compressor relies on the rate.