Project
777 Michigan Avenue Ventilation Replacement
Award
“Excellence in Engineering Award 2004” Illinois Chapter of ASHRAE
Delta Controls Chicago Participation
Controls System Contractor
Description
Energy saving project that involved an innovative
design and new high-efficiency equipment to replace
the old equipment. Part of the innovative design
approach was to use waste heat from the toilet
and kitchen exhaust fans to pre-heat corridor make-up
air. The result is that the make-up air system
doesn't use the boiler water until the outside
air temperature is below 45 deg_f. The control
system involved controlling the building pressure
to reduce infiltration, varying airflow with demand
for energy efficiency, reclaiming exhaust energy
to reduce losses, and reducing humidity levels
for improved comfort and indoor air quality.
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