Chiller
In air conditioning systems, chilled coolant, normally chilled water mixed with ethylene glycol, from a chiller in an air conditioning or cooling plant is distributed to heat exchangers, or coils, in air handlers or other types of devices which cool the air in that area. The water is then brought back to the chiller to be cooled again. These cooling coils transfer sensible heat and latent heat from the air to the chilled water. This cools and usually dehumidifies the air. A chiller for air conditioning applications is rated between  and , and at least two manufacturers (York international and LG) can produce chillers capable of up to  cooling. Chilled water temperatures (leaving from the chiller) usually range from , depending upon application requirements. Chillers will get water at 12°C (entering temperature), and cool it to 7°C (leaving temperature).