VAV air conditioning system

The full name of VRV air conditioning system is variable refrigerant flow, referred to as refrigerant air conditioning system. It uses refrigerant as the transmission medium, and the outdoor host is composed of outdoor side heat exchanger, compressor and other refrigeration accessories. The terminal device is an indoor unit consisting of a direct evaporative heat exchanger and a fan. An outdoor unit can transport refrigerant liquid to several indoor units through pipes. By controlling the refrigerant circulation of the compressor and the refrigerant flow into the indoor heat exchanger, the indoor cooling and heating load demand can be met in time. VRV system has many advantages, such as energy saving, comfort and smooth operation. Each room can be adjusted independently to meet the needs of different air conditioning loads in different rooms. However, the control of the system is complicated, which requires high pipe material, manufacturing technology and on-site welding, and its initial investment is also relatively high.