It sends "chilled water" (about 45°F) through the building to cool the air.
The chiller is the heart of the operation. It sits inside the building (usually in a basement or mechanical room) and performs one main job:
For skyscrapers or hospitals, air-cooled systems would have to be impossibly large.
Large buildings don’t just use "giant air conditioners." They use a tag-team system: and Cooling Towers.
