A central air conditioner efficiently cools an entire building by circulating chilled air through a network of ducts and vents. It consists of an outdoor unit containing a compressor, condenser coil, and fan, which extracts heat from the indoor air and transfers it outside. The cooled refrigerant then travels to an indoor unit where it absorbs heat, lowering the temperature of the air before distributing it throughout the space. Central air conditioners offer consistent cooling, maintain desired humidity levels, and can be controlled remotely for convenience. They are popular for their ability to cool large areas effectively while maintaining energy efficiency.
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