Cool Technology: Variable Refrigerant Flow

Variable refrigerant flow (VRF) systems, first introduced in the 1980s, provide potential advantages over conventional cooling technology in energy savings and increased individual control. They are best suited to applications with varying loads and occupancy zones, such as office buildings and lodging facilities. While not right for every situation, VRF technology should be considered when evaluating heating and cooling options for retrofits, facility expansions or new construction. 

With VRF systems, a single outdoor condenser can be tied to as many as 20 indoor evaporators; each individually controllable. VRF units constantly change the amount of refrigerant that flows to each evaporator. By operating at varying flow rates, VRF systems can improve occupant comfort and reduce energy use. 

VRF systems offer a number of advantages over conventional technology, including energy efficiency, temperature control, flexibility, low profile, and low operating noise. If you are considering upgrading your heating, ventilating and air-conditioning (HVAC) system, contact Hays Service to see if VRF technology is right for your facility.