Ivhavha yekuwedzera chikamu chakakosha chefiriji system, inowanzoiswa pakati pemvura yekuchengetedza silinda uye evaporator. Ivharuvhu yekuwedzera inoita kuti mvura yefiriji pane tembiricha yepakati uye kudzvanywa kwepamusoro kuve kunyorova chiutsi pane tembiricha yakaderera uye yakaderera kudzvanywa kuburikidza nekupuruzira kwayo, uye ipapo refrigerant inotora kupisa muevaporator kuti iwane firiji mhedzisiro. Ivhavha yekuwedzera inodzora kuyerera kwevhavha kuburikidza nekushanduka kwepamusoro-soro kumagumo evaporator kudzivirira kushandiswa kwenzvimbo ye evaporator uye chiitiko chekugogodza cylinder.
Zvichitaurwa zviri nyore, vharuvhu yekuwedzera inoumbwa nemuviri, tembiricha inonzwa pasuru uye chiyero chubhu
Iyo yakanaka yekushanda mamiriro evhavha yekuwedzera inofanirwa kushandura kuvhura munguva chaiyo uye kutonga kuyerera kweyero nekuchinja kweiyo evaporator mutoro. Asi chaizvoizvo, nekuda kwe hysteresis yekupisa kwekushisa muhamvuropu inonzwa tembiricha, mhinduro yevhavhavha yekuwedzera inogara iri hafu yekurova inononoka. Kana tikadhirowa dhayagiramu yekufamba-nguva yevharuvhu yekuwedzera, tichaona kuti haisi mutsara wakatsetseka, asi mutsara wewavy. Unhu hwevhavha yekuwedzera inoratidzwa mune amplitude yemafungu. Iyo yakakura iyo amplitude, inononoka kuita kwevhavha uye yakaipisisa kunaka
