VRF system
Introduction
El Flujo de Refrigerante Variable (VRF), también conocido como Volumen de Refrigerante Variable (VRV), es un tipo de sistema de aire acondicionado central de tipo multi-split. It uses a refrigerant as a medium for transferring heat and cold. Este refrigerante es acondicionado por una unidad externa de condensación y entonces circula por el edificio hacia múltiples unidades interiores.
History
It was invented in Japan by Daikin in 1982, a company that later patented that name (VRV), and this was only possible with the application of modern digitalized control techniques.
Subsequently, the rest of the industry adopted the generic name "VRF" (from the English "variable refrigerant flow"), which is also more appropriate since the entire process is always carried out in a closed environment, that is, at CONSTANT VOLUME, since what varies is actually the flow of the fluid (the amount that is pumped at each moment), depending on the needs of the remote units.
Operation
Like simple split systems, VRF systems use a fluid as a cooling and heating medium. This is conditioned by an external condensation unit and circulated within the construction through tubes that connect to multiple remote units, distributed in one or several rooms.
Primary manufacturers
Japanese:.
Koreans:.
Chinese/Others:.