The open type screw compressor condensing unit is a series of products developed and designed with the MOON-TECH LG screw compressor as the core, which is divided into Z series and D2 series. The unit can be widely used in process cooling and low-temperature refrigeration in various sub-fields such as coal chemical industry, petrochemical industry, natural gas chemical industry, pharmaceutical chemical industry, etc., and can be flexibly matched according to temperature requirements.