ACL Illinois Core Laboratory, Clinical Lab

Rosemont, IL

ACL Labs Rosemont IL HVAC installation crane


Build-out of 67,000 square feet of laboratory space within a speculative office building. The base building systems could not support the lab functions, so significant new HVAC, plumbing and electrical systems upgrades were required. The new laboratory facility serves as centralized clinical laboratories for multiple Advocate Health Care hospitals.


ASHRAE Region VI, Technology Award, Second Place (Healthcare), 2005

ASHRAE Illinois Chapter, Excellence in Engineering Award, 2004

Build-Out Design

Design features included:

  • New 100% outside air custom rooftop air-handling units to serve the laboratory areas. Air-handling units include a heated access corridor to house support equipment (pumps, humidifiers, temperature controls, electrical panels).
  • New high-plume laboratory exhaust fans
  • New 400-ton air-cooled liquid chiller
  • Variable air volume laboratory ventilation system
  • New central laboratory DI water and compressed air systems
  • Tuberculosis testing room with negative pressurization and filtered TB exhaust system
  • New emergency generator for TB laboratory systems
  • A heat pipe heat recovery system significantly reduced the amount of additional electrical power brought into the building by reducing the required capacity of the electric preheat coils in the new laboratory AHU. (The existing building is an all-electric building.)
  • The new rooftop equipment design accommodates significant height constraints imposed by the Federal Aviation Administration due to the building’s proximity to O’Hare International Airport.

Lab photo courtesy Leopardo

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