VRF stands for Variable refrigerant flow technology. It is an innovative technology in HVAC domain.
In this technology, multiple indoor units can be clubbed with a single outdoor unit, and this technology provides only the minimum amount of refrigerant needed at any one time in each zone connected with the HVAC system thus enabling individual HVAC control of the conditioned space.
This system, works on a variable speed, and it allows a greater roam for energy efficiency by providing higher COP (Coefficient of performance) at part loads. Resulting in higher energy savings
If we see, VRF/ VRV’s origins, this technology was invented in Japan in 1982 by Daikin Company. And Daikin has patented this technology with the name of VRV or Variable refrigerant volume.