Pakusarudza feni yekushandisa nevariable frequency mota (VFM), misimboti yakati wandei inofanirwa kutariswa kuti ive nechokwadi chekushanda kwakakwana uye kugona. Chimwe chezvinhu zvakakosha ndeyekutevedzana kwekushanda kwe fan uye mota. Fani inoshanda yakazvimiririra inofanira kutanga mota isati yatanga uye kuvharika nelag mushure mekunge mota yadzima. Kutevedzana uku kunobatsira kubata mota yekudziya kwemagetsi, ichibvumira kuti itonhore zvakanaka uye kudzivirira kupisa.
Imwe nheyo yakakosha ndeyekugadzirisa simba re fan uye kumhanya zvichibva pane dhizaini yekugadzira tembiricha inokwira margin. Izvi zvinoreva kuti fan inofanirwa kugadzirisa mashandiro ayo kuti ichengetedze mota mukati meiyo yakakwana yekushanda tembiricha renji. Nekuita izvi, hupenyu uye kuvimbika kwemota kunogona kuwedzera zvakanyanya, kuderedza njodzi yekutadza kusati kwasvika.
Kuita ruzha ndechimwe chinhu chakakosha pakusarudza fan yevariable-frequency uye speed-regulating motor. Ruzha rwunogadzirwa nemamotor rinogona kuve dambudziko mumhando dzakasiyana dzekushandisa, kunyanya munzvimbo dzekugara kana dzakaoma. Kugadzirisa dambudziko iri, huwandu hwese hwekuita ruzha rwemota inogona kuvandudzwa nekushandisa yakaderera-ruzha fan dhizaini. Aya madhizaini anowanzo batanidza maficha akadai seakagadziridzwa blade maumbirwo, ruzha rwekudzivirira zvinhu uye nzira dzepamusoro dzekudzora mota kudzikisa ruzha rwekushandisa.
Paunenge uchisarudza inosiyana frequency mota fan, munhu anofanirwa kufunga nezve inoshanda kutevedzana, gadzirisa simba uye nekumhanyisa zvinoenderana nemota yemagetsitembiricha inokwira muganho, uye kuita ruzha rwesisitimu kuona kuti mota inomhanya zvakanyanya, zvakavimbika, uye chinyararire, nekudaro inovandudza mashandiro uye vashandisi. Kugutsikana.