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Project
Improving Air Quality, Efficiency & Building Security
Illinois Wesleyan University
$650,000
budget
15,000
sq. ft
The Challenge
The air-handling unit serving the nursing school failed in the fall of 2017. Fixing it was cost-prohibitive, and the university was forced to rent a temporary unit to maintain air conditioning. Another problem with the failed system was the lack of a return fan, which led to over-pressurization in the building — keeping doors from latching and creating security issues.
KEDbluestone Solution
Our design created a new steel-frame structure for the roof of the three-story building, where we placed a custom 17,000 cfm air-handler designed to fit the same footprint as the previous unit. It ties into the existing ductwork to feed the distribution system. A variable-volume unit, the new air-handler modulates supply-and-return air flow to keep the building at optimal pressure. We also upgraded the building’s temperature controls, converting them from pneumatic to direct digital control (DDC).
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