Akwai abubuwa guda biyu a cikin akwatin kafewar mota, daya shine tankin iska mai dumi, daya shine na'urar sanyaya iska, ruwan da ke cikin tankin ruwan mota yana da zafi, kwarara cikin tankin dumin iska, iskar da fanka ke hura ita ce iska mai dumi, sannan idan ka bude refrigeration, tankin dumin iska zai dakatar da ruwan, na'urar sanyaya iska ta fara aiki, compressor matsa lamba a cikin iska na iska, sanyi na hura iska na iska, iska mai sanyi.
Akwatin evaporation na mota injin mota ne da na'urar kwandishan mota. Aiki na akwatin evaporation na kwandishan mota shine don canza refrigerant daga ruwa zuwa gas (watau evaporation), shafe zafi mai yawa a kusa da shi, sa'an nan kuma ƙananan zafin jiki da ƙananan matsa lamba refrigerant tururi a cikin kwampreso, da sake zagayowar tsari don cimma manufar ƙananan zafin jiki. A lokacin rani don samar da yanayi mai kyau na hawa ga mazauna, rage ƙarfin gajiyar direba, inganta amincin tuki.
