Ishaja yesiqandisi enganele ingaba nomthelela onezici eziningi kumakhaza asezimbonini. Ukuqinisekisa ukusebenza kahle kwe-industrial chiller kanye nokupholisa okuphumelelayo, kubalulekile ukuhlola njalo ukushaja kwesiqandisi futhi ukushajwa kabusha njengoba kudingeka. Ukwengeza, opharetha kufanele baqaphe ukusebenza kwesisetshenziswa futhi balungise ngokushesha noma yiziphi izinkinga ezingase zibe khona ukuze kuncishiswe ukulahlekelwa okungaba khona kanye nezingozi zokuphepha.