Ukushisa okukhuphayo yenye yeeparameters ezibalulekileyo; Iqondo lobushushu le-Condensation liyiparameter ebalulekileyo yokusebenza kumjikelo wefriji; Ubushushu be-compressor casing kunye nobushushu befektri ziiparamitha ezibalulekileyo ezifuna ingqalelo ekhethekileyo. Ezi parameters zokusebenza zibalulekile ekuphuculeni ukusebenza kakuhle kunye nokusebenza ngokubanzi.