Igumbi lokomisa umoya obandayo lisebenzisa inqubo: sebenzisa umoya onezinga lokushisa eliphansi kanye nomswakama ophansi, qaphela ukujikeleza okuphoqelekile phakathi kwezinto ezihlanganisiwe, kancane kancane unciphisa okuqukethwe komswakama ukuze ufinyelele izinga elidingekayo.Enkambweni yokujikeleza okuphoqelekile, izinga lokushisa eliphansi kanye komoya omswakama ophansi udonsa ngokuqhubekayo umswakama ebusweni bezinto, umoya ogcwele udlula ku-evaporator, ngenxa yokuhwamuka kwesiqandisi, izinga lokushisa elingaphezulu le-evaporator lehla ngaphansi kwezinga lokushisa lomkhathi. Umoya upholile, umswakama ukhishwa, emva kwalokho umswakama okhishiwe ukhishwa ngumqoqi wamanzi. Izinga lokushisa eliphansi kanye nomoya womswakama ophansi bese ungena ku-condenser futhi, lapho umoya ushiswa ukushisa okuphezulu kwesiqandisi segesi esivela ku-compressor, sakha umoya owomile, bese sixubana nomoya ogcwele ukuze kukhiqizwe izinga lokushisa eliphansi kanye nomoya womswakama ophansi, ojikelezayo. ngokuphindaphindiwe. Izinto ezomiswe umshini wokomisa umoya obandayo azigcini nje ngokugcina izinga lazo langempela, kodwa futhi zilungele ukupakishwa, ukugcinwa kanye nokuthuthwa.