Cooling the Midwest: A Look at Real-World Dunham-Bush Chiller Installations

Every project comes with different challenges, operating conditions, and performance goals. That’s why we work closely with engineers, contractors, and owners to help select equipment that fits the application and supports long-term reliability.

This portfolio highlights a collection of installed Dunham-Bush chiller projects across Iowa and Illinois. From churches and schools to healthcare facilities, multifamily housing, industrial facilities, and public venues, these installations demonstrate how adaptable modern chiller systems can be.

Featured Chiller Platforms

Zeus Air-Cooled Scroll Chillers (ACDS Series)

The majority of installations featured in this catalog utilize the Dunham-Bush ACDS Zeus Air-Cooled Scroll Chiller platform. Designed for commercial comfort cooling and flexible installation requirements, the ACDS series combines multiple scroll compressors with high-efficiency heat exchanger technology to deliver dependable operation across a wide range of building types.

Key features seen throughout these installations include:

• Multiple scroll compressor design for improved part-load efficiency and redundancy

• High-efficiency Plate Heat Exchanger (PHE) or Shell & Tube heat exchanger options

• Modular design availability for scalability and future expansion

• AHRI certified performance

• ETL certification

• Refrigerant options including R410A and lower-GWP R454B

• Available low-temperature process cooling capabilities (down to -20°F on select applications)

Installed capacities in this portfolio range from 20 RT to 180 RT depending on project requirements.

Helios Air-Cooled Screw Chillers (ACHX-D Series)

The Mason City Surgery Center installation features the Dunham-Bush ACHX-D Helios Air-Cooled Screw Chiller, engineered for larger cooling loads and applications requiring advanced control and higher-capacity operation.

Notable features include:

• High-efficiency horizontal screw compressor design

• Advanced microprocessor controller for system optimization

• Twin compressors with independent refrigerant circuits

• Aluminum micro-channel condenser coils

• AHRI certified performance meeting ASHRAE 90.1 standards

• Cottonwood protection filtration

• HFO-R513A refrigerant for reduced environmental impact

This platform is well suited for healthcare, institutional, and mission-critical environments where reliable performance and efficient operation are essential.

Supporting a Wide Range of Applications

No two buildings operate the same way.

In this collection, you’ll see installations serving:

• Worship facilities

• Educational campuses

• Healthcare and surgery centers

• Multifamily housing

• Industrial manufacturing

• Airports and public spaces

Each project was selected to meet unique cooling demands while prioritizing efficiency, serviceability, and long-term performance.

Featured Installations

Community & Institutional

Projects including Gospel Assembly Church, St. Ambrose Cathedral, Green Mountain Elementary School, and Veterans Memorial Stadium showcase how air-cooled scroll chillers can support occupant comfort in high-use public spaces.

Healthcare & Critical Environments

Healthcare projects like Mason City Surgery Center and Midwest Medical Center required dependable operation and efficient cooling performance to support mission-critical spaces.

Industrial & Commercial

Industrial applications such as John Deere, Eastern Iowa Regional Airport, and Reiman Gardens demonstrate how chillers can support process cooling requirements and specialized operating conditions.

Multifamily & Residential

Projects including Keystone Apartments, Stonehaven Apartments and Sigma Phi Fraternity show how scalable chiller solutions can provide efficient cooling across residential developments.

Why Dunham-Bush?

Across these installations, several themes appear consistently:

• High-efficiency heat exchanger designs

• Multiple compressor configurations

• AHRI certified performance

• Flexible modular options

• Refrigerant selections to support evolving project requirements

At VHF Sales, we’re here to help size, select, and budget for your next project.

Want to discuss an upcoming application? Reach out to our team at www.vhfsales.com.