This compressor is specially design for multi compressor unit market, and single unit without oil pump, but with an industrial concept. This means that the rotor is low speed 4/6 MYCOM patent, so that we can get longer life time. Also includes balance piston that helps to avoid bearing from wearing so that we can keep a good performance for long time. It has flange for easy unit implementation and three Vi that makes it much better COP than commercial concepts at low temperatures. This compressor will be shown as bare.