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Chiller Optimization Package Retrofit Case Study

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This document describes a pre-packaged Chiller Optimization Package (COP) retrofit that reduces centrifugal compressor chiller energy costs by 30% while lowering maintenance and extending operating life, as demonstrated in a case study at Duke Realty. It explains how upgrading from constant-speed to variable-speed motor control using a VFD improves chiller efficiency, and details the refrigerant cycle and the COP's role in optimizing it.

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