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Mechanical / HVACaka: water chilleraka: centrifugal chilleraka: screw chiller

Chiller

In Plain English

A large refrigeration machine that cools water used to air-condition buildings.

Definition

A refrigeration machine that removes heat from water, producing chilled water for air conditioning systems. Chillers use the refrigeration cycle—compressor, condenser, expansion valve, and evaporator—to transfer heat from the chilled water to a condenser medium, which is then rejected to the atmosphere via a cooling tower or air-cooled condenser. Common types include centrifugal, screw, scroll, and absorption chillers.

Example

A 400-ton water-cooled centrifugal chiller in the basement mechanical room serves the building's central cooling system.

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