Project Description  

This project involves the replacement of an aging 265-ton water-cooled chiller and its associated cooling tower at a facility within the Ames Community School District. The upgrade is part of a broader initiative to modernize the building’s mechanical systems and improve energy efficiency while preparing for future low-temperature heating needs.

Scope of Work  

The scope includes:

• Removal of the existing water-cooled chiller and cooling tower.
• Installation of a new air-to-water heat pump (air-source heat pump chiller) capable of providing both chilled and heated hydronic water.
• Integration of a water-to-water heat pump and an air-cooled chiller to maximize system efficiency and operational flexibility.
• Design considerations to support both current cooling demands and future low-temperature heating water distribution.

Challenge Faced 

The project required careful planning to ensure compatibility between new and existing systems while maintaining operational continuity. Additionally, the installation had to be scheduled during the summer of 2025 to avoid disruption to school operations, requiring tight coordination between design, procurement, and construction teams.

Project Outcome 

Upon completion, the facility will benefit from a modern, energy-efficient HVAC system capable of both cooling and heating. The combination of air-source and water-source technologies will provide long-term flexibility, reduced maintenance, and improved environmental performance—positioning the District for future sustainability goals.