Iyunithi epholisa amanzi ngokuvamile eyaziwa ngokuthi ifriji, i-chiller, umshini wamanzi e-ice, umshini wamanzi aqandayo, umshini wokupholisa, njll., ngenxa yokusetshenziswa okubanzi kwayo yonke imikhakha yempilo, ngakho igama lingenakubalwa.Isimiso sezakhiwo zakhona siwumsebenzi omningi umshini okhipha umhwamuko owuketshezi ngomjikelezo wokuminyanisa noma wokumuncwa ukushisa kwesiqandisi.I-chiller yokucindezela isitimu inezingxenye ezine eziyinhloko ze-compressor yomjikelezo wokucindezela umusi, i-evaporator, i-condenser, kanye nengxenye yedivayisi yokulinganisa ngendlela yesiqandisi esihlukile.