The Differences Between Air-Cooled and Water-Cooled Chiller Units
Jan 21, 2026
Air-cooled and water-cooled chillers are two of the most common types of cooling systems. While they serve the same primary function, they differ significantly in their operating principles, installation requirements, and ideal application scenarios.
Operating Principles
The primary difference lies in how they dissipate heat.
Air-cooled chillers use fans to draw ambient air across a condenser to cool the system. As the air passes over the condenser, it absorbs heat from the refrigerant, which is then circulated through the compressor to continue the cooling cycle.
Water-cooled chillers, by contrast, use water as the heat exchange medium. After the refrigerant is compressed, its heat is transferred to water via the condenser. This heat is then dissipated through a separate co...
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