VRF stands for Variable Refrigerant Flow and means variable flow of fluid in the panel (indoor unit). In simpler terms, this device is similar to an air conditioner with several indoor units. Due to the sensitivity of the VRF system, its implementation is a very specialized task that will cause problems if there is the slightest defect in the design or implementation of the entire system. So, it is better if the device is purchased from any company or brand, the seller is responsible for the design, installation and implementation. Green Company GRV devices are a new generation of manufactured air conditioners that, with their diverse and different capabilities, provide the possibility of air conditioning residential, office and commercial buildings. The evaporation and condensation temperature of the refrigerant has a great impact on the cooling, heating and efficiency of the GRV. Due to VER technology, the seventh generation of GRV systems has different modes with different refrigerant temperatures, which leads to different system performance and increased energy efficiency.
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5-year warranty on the compressor
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Conventional lighting systems have a direct dependence on daylight. As natural light decreases, the compensatory lighting system activates and tries to maintain consistent conditions by constantly adjusting the lighting level. Based on this, if for example the VRF provided in a D50 model is 13000 lux per m2 Btu/h 10000 but the natural light VRF is only 5000 lux per Btu/h 10000, the compensatory lighting system will compensate for 8000 lux.
The main components of VRF systems include a DC inverter compressor with variable RPM, solenoid valves, a PC control called the master rack. The compressor units, electronic expansion valve, and variable green connect with the system. In 3 to 2 or 12 to 12 versions, separate rooms with 60% to 130% capacity are covered by the internal connection capacity.
Real-time management and analysis of total building energy consumption using digital controllers Flexible control and programmability for various weather conditions Precise temperature control and thermal comfort along with significant energy savings potential Significant reduction in noise and vibration by placing the compressor in outdoor units Flexibility in selecting indoor unit types based on architecture and decor Ability to reuse existing piping in the building, sometimes up to 80 percent
Higher initial cost compared to more conventional systems More complex maintenance and repair by specialized personnel Limitations on allowable distance between indoor and outdoor units Incompatibility of some system components when combining different brands Lack of ability to fully filter and purify building air due to direct transfer system
The VRF system is used in chillers and solar VRF systems to increase system efficiency and reduce energy consumption. It can also be used in large buildings, multi-purpose buildings, and office spaces with varying thermal loads.
