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.