ʻO ka Chiller Cold Storage kahi ʻano evaporator mālama anu (chiller no ka inoa maʻamau o ka ʻoihana), ʻo ke kuleana o ka chiller mālama anu e hele mai e hana i ka mālama anu anuanu wela hoʻonui ʻia o ka wela haʻahaʻa a me ka haʻahaʻa haʻahaʻa saturated refrigerant ma o ka chiller a me ka wela wela. ʻO ka hoʻololi ʻana e hoʻopiha ʻia ka hoʻoheheʻe ʻana i ka pahu hau a lawe aku i ka wela i loko o ka mea hoʻololi wela.