Chiller Optimization Package Retrofit Case Study

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.