Lapho ukhetha ifeni ozoyisebenzisa nge-i-variable frequency motor (VFM), izimiso ezibalulekile ezimbalwa kufanele zicatshangelwe ukuze kuqinisekiswe ukusebenza kahle nokusebenza kahle. Esinye sezici ezibalulekile ukulandelana kokusebenza kwe-fan ne-motor. Isiphephetha-moya esisebenza ngokuzimela kufanele siqale ngaphambi kokuba injini iqale futhi ivalwe nge-lag ngemva kokucisha injini. Lokhu kulandelana kusiza ukuphatha amandla e-motor's thermal, ukuyivumela ukuthi iphole kahle futhi ivimbele ukushisa ngokweqile.
Esinye isimiso esibalulekile ukulungisa amandla efeni kanye nesivinini ngokusekelwe emazingeni okushisa edizayini yemoto. Lokhu kusho ukuthi ifeni kufanele ikwazi ukulungisa ukusebenza kwayo ukuze igcine injini ingaphakathi kwebanga lokushisa elilungile lokusebenza. Ngokwenza lokhu, impilo nokuthembeka kwemoto kungandiswa kakhulu, kunciphise ingozi yokwehluleka ngaphambi kwesikhathi.
Ukusebenza komsindo kungenye into ebalulekile lapho ukhetha ifeni yei-variable-frequency kanye ne-speed-regulating motor. Umsindo okhiqizwa amamotho ungaba inkinga ezinhlelweni ezihlukene, ikakhulukazi ezindaweni zokuhlala noma ezibucayi. Ukuxazulula le nkinga, izinga lokusebenza lomsindo jikelele lenjini lingathuthukiswa ngokusebenzisa umklamo wabalandeli womsindo ophansi. Le miklamo ivamise ukuhlanganisa izici ezinjengobumo be-blade obulungiselelwe, izinto zokuvala umsindo kanye namasu athuthukisiwe okulawula izithuthuthu ukuze kuncishiswe umsindo wokusebenza.
Lapho ukhetha i-variable frequency motor fan, umuntu kufanele acabangele ukulandelana kokusebenza, alungise amandla nesivinini ngokuya nge-motor kagesiumkhawulo wokwenyuka kwezinga lokushisa, kanye nokusebenza komsindo kwesistimu ukuze kuqinisekiswe ukuthi injini isebenza kahle kakhulu, ngokwethembeka, nangokuthula, ngaleyo ndlela kuthuthukisa ukusebenza nabasebenzisi. Ukwaneliseka.