A matsayin maɓalli na kayan aiki don jigilar sarkar sanyi, zaɓin tirela mai sanyi{0} yana da mahimmanci. Lokacin zabar tirela, la'akari da mahimman abubuwa guda uku: chassis tirela, jikin da aka keɓe, da na'urar sanyaya.
Muhimmancin Zabin Chassis
Chassis yana rinjayar ƙarfin ɗaukar abin hawa, yawan amfani da mai, da ƙa'idodin fitar da hayaki. Zaɓi chassis wanda yake abin dogaro sosai kuma yana bayarwa da sauri don hana rashin aiki wanda zai iya haifar da tabarbarewar kaya. Na farko, zaɓin chassis yana da mahimmanci. Yana tasiri kai tsaye ƙarfin ɗaukar abin hawa, amfani da mai, da ƙa'idodin fitar da hayaki. Bugu da ƙari, tun da na'urori masu sanyin jiki{4}} yawanci suna jigilar kaya da sauri kuma ba za a iya adana su na dogon lokaci ba, amincin chassis yana da mahimmanci musamman don hana rashin aiki da zai iya haifar da tabarbarewar kaya.
Sharuɗɗan Zaɓin Jiki
Na biyu, jiki dole ne ya sami kyakkyawan hatimi da kaddarorin thermal insulation. Kayan ya kamata ya kasance yana da ƙarancin sha ruwa, ya zama mai numfashi, kuma ya kasance da lalata{1}}mai juriya don ɗaukar nau'ikan kaya daban-daban. Jiki yana buƙatar ingantacciyar hatimi da rufin zafi don tabbatar da kwanciyar hankali da zafin jiki yayin sufuri. Lokacin zabar jiki, yi la'akari da shayarwar kayan, ƙarfin numfashi, ƙarfin zafin jiki, da juriya na lalata. Bugu da ƙari kuma, nau'ikan kaya daban-daban za su sami buƙatu daban-daban don tirela, don haka zaɓin ya kamata ya dogara da ainihin buƙatu.
Zaɓin Naúrar firiji
A ƙarshe, an raba sassan firiji zuwa nau'ikan masu zaman kansu da masu dogaro. Lokacin zabar sashin firiji, yana da mahimmanci don daidaita buƙatun sufuri don gujewa tsadar tsada. Zaɓin naúrar firiji kuma shine maɓalli mai mahimmanci don tantance aikin ƙaramin firiji{2}} tirela. An karkasa raka'o'in firiji a matsayin masu zaman kansu kuma masu dogaro. Raka'a masu zaman kansu suna da nasu tushen wutar lantarki, yayin da raka'o'in da suka dogara da su sun dogara da ƙarfin chassis abin hawa. Lokacin zabar naúrar firiji, yana da mahimmanci don daidaita buƙatun sufuri don guje wa farashin sufuri mara amfani.
