a)High Reliability,with Bitzer screw compressor b)Energy Saving 20%~50% than single compressor ... increased 20% than single compressor unit.5) High efficiencyMulti-connected compressors save 20% to 50% electricity than single compressor unit. ... store, brewing machine, scientific research etc. 3.Components in Rack Screw compressors, refrigerant receiver, gauge panel, HP/LP controller, Control cabinet, ...