The simplest explanation of VRF is to describe it as a large-scale ductless HVAC system that can perform at a high capacity. The specific design of a VRF system varies based on application. In general, VRF technology provides the ability for multiple indoor units or zones to operate on the same system.
Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), is an HVAC technology invented by Daikin Industries, Ltd. in 1982. Like ductless minisplits, VRFs use refrigerant as the cooling and heating medium. This refrigerant is conditioned by a single or multiple condensing units (which may be outdoors or indoors, water or air cooled), and is circulated within the building to multiple indoor units. VRF systems, unlike conventional chiller-based systems, allow for varying degrees of cooling in only certain areas, reducing energy consumption.
VRF systems use heat pumps or heat recovery systems to provide powerful heating and cooling for all indoor and outdoor units without the use of air ducts. With a VRF system, your building will have multiple indoor units utilized by a single outdoor condensing unit, either with a heat pump or heat recovery system.
The technology behind VRF systems is incredibly complex but think of them as an enhanced version of ductless mini-splits. VRF systems use heat pumps or heat recovery systems to provide powerful heating and cooling for all indoor and outdoor units without the use of air ducts.
Customized heating and cooling – In conventional HVAC systems, you’ll find that the only options are on or off. VRF systems can heat and cool different zones within a building simultaneously and occupants can customize the temperature settings.
Flexible design – The product comes in a multitude of types and sizes, which means it can fit any application. You can find sleek and compact equipment, so if you have limited space, this could be an excellent choice.
Runs at a low volume – VRF systems are very quiet and won’t disturb building occupants when it’s running, unlike older HVAC technology.
Easy installation – Since the units are generally compact and weigh less than equipment with ducts, installation is a breeze! You won’t need to call in the big cranes for rooftop placements either since most can fit in service elevators. We know that this is especially important for businesses that need to resume normal operations quickly.
Energy-efficient – These systems are up to 30% more efficient than conventional HVAC systems. They provide energy savings by the varied compressor speed and only delivering the required temperature. Additionally, you won’t experience energy loss through ductwork since it doesn’t require any.