VRF system VRF (Variable Refrigerant Flow) systems refer to the variable fluid flow in the internal panels of the cooler and are one of the advanced HVAC systems that were first introduced in 1982 by the Japanese company Daiclean. These systems are one of the most modern and at the same time the most sensitive air conditioning systems that provide cooling and heating for the building at the same time. VRF systems are usually used in office buildings, hotels and large commercial buildings. VRF systems are similar to air conditioners with several indoor units, which indoor units can be installed inside the building and in different areas, and the outdoor unit (condensing which consists of a condenser and compressor) can be installed in the open environment and on the roof of the building. . VRF systems such as splits use R410A refrigerant gas for cooling and heating, the refrigerant gas is circulated in a circuit by an external panel between several internal panels. Due to the sensitivity of VRF systems, their implementation should be done by experts so that the entire system does not suffer in case of the smallest defect in the design or implementation. Different parts of the VRF system - Compressors - Subcooler converters - Oil separator - HOT Gas control valve - Safety valves - Expansion valves - Accumulator You can choose and calculate the capacity and type of VRF, and get free advice from the experts of Artan Air Conditioning Company.