TEYU S&I-Chiller ngumvelisi we-chiller wamanzi wemizi-mveliso oneminyaka engama-23 yamava ekuyileni, ekwenzeni nasekuthengiseni izixhobo zokupholisa amanzi kwimizi-mveliso . Sihlala sinikela ingqalelo kwiimfuno zokwenyani zabasebenzisi bamanzi apholileyo kwaye sibabonelele ngoncedo esinako. Ngaphantsi koku Ityala leChiller ikholamu, siya kubonelela ngeemeko zokupholisa, ezinje ngokukhetha i-chiller, iindlela zokucombulula ingxaki, iindlela zokusebenza ze-chiller, iingcebiso zokugcinwa kwe-chiller, njl.