Nthawi zambiri zimachitika kuti madzi ozungulira m'madzi oundana amaundana chifukwa cha kutentha pang'ono m'nyengo yozizira, zomwe zimalepheretsa kuzizira kwamadzi kugwira ntchito moyenera. Pothetsa vutoli, ogwiritsa ntchito amatha kuwonjezera anti-firiji mu chozizira chamadzi potsatira njira zotsatirazi:
1. Onjezerani madzi ofunda kuti asungunuke ayezi mumsewu wamadzi wozungulira;2. Madzi oundana akasungunuka, onjezerani anti-firiji molingana.
Komabe, chonde dziwani kuti anti-firiji sangagwiritsidwe ntchito kwa nthawi yayitali, chifukwa imatha kuwononga chiller chamadzi mkati chifukwa cha dzimbiri. Choncho, nyengo ikamayamba kutentha ndipo madzi sakuundana, tikulimbikitsidwa kuchotsa madzi ozungulirawo ndi anti-firiji ndikudzazanso madzi oyeretsedwa kapena madzi osungunuka.
Pankhani yopanga, S&A Teyu adayika zida zopangira yuan yopitilira miliyoni imodzi, kuwonetsetsa kuti njira zingapo zimachokera kuzinthu zazikuluzikulu (condenser) za mafakitale oziziritsa kukhosi mpaka kuwotcherera kwachitsulo; ponena za mayendedwe, S&A Teyu yakhazikitsa malo osungiramo katundu m'mizinda ikuluikulu ya China, atachepetsa kwambiri kuwonongeka chifukwa cha mayendedwe akutali a katunduyo, komanso kuwongolera magwiridwe antchito; pankhani ya pambuyo-malonda utumiki, nthawi chitsimikizo ndi zaka ziwiri.
