Refrigerant ndiye njira yogwirira ntchito yozungulira mufiriji mu kompresa mpweya woziziritsidwa mu chiller wamadzi. Refrigerant imatenga kutentha mkati mwa vaporization mu evaporator ndiyeno imatulutsa kutentha panthawi ya condensation mu condenser. Njira ziwirizi zimapita mmbuyo ndi mtsogolo zimapangitsa chiller kukhala mufiriji. Pali mitundu iwiri ya mafiriji m'mafakitale -- firiji yogwirizana ndi chilengedwe kuphatikiza R134A, R410A ndi R407C komanso mafiriji omwe si ochezeka ndi chilengedwe kuphatikiza R22.
Mu malonda mayiko, mayiko ena angafunike kompresa mpweya utakhazikika madzi chiller kuperekedwa ndi chilengedwe wochezeka refrigerant pofuna kuteteza chilengedwe. Za S&A Teyu kompresa mpweya woziziritsa kuzizira madzi, onse amaperekedwa ndi mafiriji ochezeka ndi chilengedwe
Ponena za kupanga, S&A Teyu adayika zida zopangira ma yuan opitilira miliyoni imodzi, kuwonetsetsa kuti njira zingapo zikuyenda bwino kuchokera pazigawo zapakati (condenser) za mafakitale oziziritsa kukhosi mpaka kuwotcherera kwachitsulo; pankhani ya Logistics, S&A Teyu akhazikitsa malo osungiramo katundu m'mizinda ikuluikulu ya China, atachepetsa kwambiri kuwonongeka kwa katundu chifukwa cha mtunda wautali wa katundu, komanso kupititsa patsogolo kayendedwe kabwino; pankhani ya pambuyo-malonda utumiki, nthawi chitsimikizo ndi zaka ziwiri.
