Aviation icon Aviation

O’Hare Rotunda AHU Replacements

Milhouse provided electrical engineering, architectural design, and cost-estimating services for designing and constructing the new HVAC systems at the Rotunda Building of O’Hare International Airport. This project scope included replacing and modifying multiple air-handling systems, the heating and cooling coil at the H&R plant’s mezzanine level, and replacing one AHU in the basement.

In addition, Milhouse made the following improvements:
» Installed new, permanent ductwork cross-connections between existing HVAC systems to improve reliability and redundancy and enable the shutdown of existing AHUs without disrupting airport operations.
» Used wireless controls to reduce construction costs.
» Existing control valves were replaced with pressure-independent control valves to monitor and control CO2 levels.
» Designed heat-recovery systems to improve indoor air quality and reduce total energy consumption and maintenance/operation costs.

Designs included:
» New Motor-Control Center
» 480V–120V Transformer
» Refl ective ceiling plan
» LED lighting design
» Architectural updates, based on the installation of new mechanical equipment wall openings

Milhouse also provided design services to meet phasing requirements and ensure airport operations were maintained at acceptable levels.

Region

Midwest

Client

O’Hare International Airport

Prime

EXP US Services, Inc.

Services

Architectural Engineering, Electrical Engineering