Madzi utakhazikika unit omwe amadziwika kuti mufiriji, chiller, makina a madzi oundana, makina oziziritsa madzi, makina ozizira, ndi zina zotero, chifukwa cha kugwiritsidwa ntchito kwakukulu kwa mitundu yonse ya moyo, kotero dzinali ndi losawerengeka.Mfundo ya katundu wake ndi multifunctional makina amachotsa nthunzi madzi kudzera psinjika kapena kutentha mayamwidwe refrigeration cycle.The nthunzi psinjika chiller tichipeza zigawo zinayi zikuluzikulu za nthunzi psinjika refrigeration mkombero kompresa, evaporator, condenser, ndi mbali ya metering chipangizo mu mawonekedwe a refrigerant osiyana.