1. Ikhwalithi yokukhiqiza: Izinga lokukhiqiza le-cooler lithinta ngqo impilo yalo yesevisi. -Izinto ezisetshenziswayo zekhwalithi ephezulu nobungcweti obuyinkimbinkimbi bungaqinisekisa ukuzinza nokuqina kwe-cooler.
2. Indawo esetshenziswayo: Indawo okusetshenziswa kuyo indawo epholile izoba nomthelela empilweni yayo. Isibonelo, izimo ezinzima ezifana nezinga lokushisa eliphezulu, umswakama ophezulu, nendawo ebolayo zizosheshisa ukuguga nokulimala kwesipholile.
3. Ukunakekela: Ukunakekelwa okuvamile kubalulekile ukuze kunwetshwe impilo yesevisi yesipholile. Ukuntuleka kokunakekelwa okudingekayo kanye nokunakekelwa kungase kubangele ukuba isipholile siwohloke ekusebenzeni noma size silahlwe ngaphambi kwesikhathi.