... two categories: water-cooled chiller and air-cooled chiller. Water-cooles chiller cooled by water, using with cooling tower and water pump, the other cooled by fan,can ... can be one or two ,each compressor is independent refrigeration system. Each other run independently.when the one is ... can be 1 to 4 ,each compressor is independent refrigeration system. Each other run independently.when the one is ...