1.Bitzer screw compressor 2.Capacity from 50HP~300HP 3.Suitable for R22, R404A, ... compressor rack is perfectly applicable for it. The professional design is made to protect inversion, overheat, overload, exhaust temperature, low oil level, oil ... for different refrigerant.7. Optional configuration is acceptable. Multi-paralleled air cooled condensing unit with Bitzer screw compressor