Industrial Utility Efficiency    

Technical Systems Announces Waterside Economizer Systems for Air Cooled Chillers

Technical Systems announced the availability of a range of factory built to order air cooled chiller products using integral waterside economizer systems. These waterside economizer solutions are designed for applications where cooling operations must run all year round. They are ideal for owners of data centers, manufacturing facilities, or process loads who want to benefit from partial or free cooling to decrease their utility bills and improve system reliability. They lower the total kilowatts of energy used, reducing utility costs and decreasing customers’ total cost of ownership.

Fluid running through the economizer’s chiller system is passed through free cooling coils before running through the evaporator. This lets the cold ambient air do the cooling, taking the load off the compressors. Instead of continuing to run compressors for cooling, the waterside economizer makes use of the cold ambient air to do the job. Unlike some other designs, the TSI economizer system is capable of both full and partial free cooling, dramatically improving the hours of free cooling available each year. It reduces the overall kilowatts of energy used compared to typical off-the-shelf commercial chiller products, requiring running compressors all year long.

Technical Systems’ waterside economizer systems are integrated into a single factory built to order packaged system, with all components from a single source. Waterside economizer systems can be tailored to specific site conditions and requirements, simplifying the ordering process and saving time compared to modifying and recertifying other off-the-shelf units.

Technical Systems has had 45 years of experience manufacturing built to order refrigeration systems, and has used this expertise in developing the waterside economizer. The product has evolved to keep pace with industry standards and code requirements, while increasing efficiency and reducing energy costs for year-round cooling applications. TSI is a division of RAE Corporation.


About RAE Corporation

RAE Corporation, family-owned and headquartered in Pryor, Oklahoma, is an industry leader in the design manufacturing of custom-engineered cooling and refrigeration systems. RAE’s expertise allows the company to design top-quality systems to meet the specific needs of their customers. RAE designs and manufactures products in four divisions: Century Refrigeration, RAE Coils, Refrigeration Systems and Technical Systems. For more information about the high-quality, made-in-the-USA cooling and refrigeration systems manufactured by all four of the company’s divisions, visit