Compressor in operation, outlet of compressor always lots of refrigerant oilNeed to install oil separator between compressor and condenserTo separate refrigerant oil and refrigerants in order to prevent compressor not lose too much refrigerant oilPrevent refrigerant oil flow to system with refrigerants to interfere condenser heat function and evaporator cooling functionOil will flow back to compressor crankcaseOil-return device operates on ball valve moving on bottom of oil separator and high-low voltage theoryCan ensure sufficiency of oil compressor and let compressor reach its nice cooling performanceNeed to pre-charge oil before installing oil separatorCharged of oil should be same as oil in compressor crankcase

Demountable Oil Separator