This project replaced one of two primary 339 ton air-cooled chillers with a 30 ton modular chiller system (310 ton total). The modular system included a direct digital control system that allowed chilled water reset via a Johnson Controls EMS. This chiller did not require a crane or helicopter for installation, reducing the project cost. The total project cost is $690,351 with an energy savings of over $35,000/year. Approximate payback time is 19.5 years.