what is the VRF system? Variable Refrigerant flow (VRF) technology has been widely used for the past 30 years, especially in Asia and Europe. Increased efficiencies such as increased efficiency, flexibility and faster return on investment are some of the key factors for the newfound popularity in the United States since the turn of the century. Variable Refrigerant flow Technology Basic Two Type: VRF heat pump systems : All indoor units can either heat or cool (not at the same time). The fan and dry modes are available separately for each indoor unit. And they are the basic unit of the system The outdoor unit of the VRF system is the same size as other heat pumps and air conditioners. The indoor component of a VRF heat pump usually takes the form of a cassette, floor-mounted or wall-mounted unit, and is equipped with an outdoor unit via refrigerant piping. VRF units do not use ductwork, which frees up within sq...