Uma izinga le-refrigerant ku-evaporator liphakathi kokuphakeme, lingaholela ekutheni i-compressor ithole i-refrigerant ye-liquid (okungukuthi, ukuhamba kwe-liquid ku-compressor). Le ndaba ingaholela ekwehleni kwezinga le-oyela le-compressor. Izimbangela ezithile zifaka phakathi:
◦ Ukugcwaliswa kwe-refrigerant okweqile: Ukugcwaliswa kwe-refrigerant okungaphezu kokwanele kugcwaliswa ohlelweni, kuthatha isikhala ku-evaporator futhi kuvimbela uketshezi ekuphumeleleni kokuvaporiza ngokuphelele.
◦ Ukusetha okuphansi kwe-superheat: Uma i-superheat isethwe ngendlela engafanele, kungaholela ekunganeliseki kokuphuma, kukhuphule ingozi yokudlula kwamanzi emshinini opholile.