2009 – 2012 $110m renovation of 30 story 1.4m sqft with full scale upgrade of perimeter induction system with a target to improved energy efficiency over the original system of 30% and to undertake the renovation while the building was still occupied.

Total: 5103 HEPIU Induction Units

Engineer: Environmental System Design, Inc., IL
Mechanical Contractor: Great Lake Plumbing and Heating Company, IL
General Contractor: Turner Construction, IL
Owner: GSA, Great Lakes Region 5, IL