Ukuvikela ukulayisha ngokweqile kumayunithi okupholisa amanzi kuyisinyathelo sokuphepha esibalulekile. Izindlela eziyinhloko zokubhekana nokulayishwa okungaphezulu kwama-chillers amanzi zihlanganisa: ukuhlola isimo somthwalo, ukuhlola injini kanye ne-compressor, ukuhlola isiqandisi, ukulungisa imingcele yokusebenza, kanye nokuxhumana nabasebenzi abafana nethimba langemuva kokuthengisa lefekthri yokupholisa.