New Construction

ProngerPronger Smith Medical Center Expansion

When Pronger-Smith’s medical office building in Tinley Park decided to add 30,000 square feet to their facility, Service Mechanical was hired to design and build the heating and cooling systems. Twinned roof-top units (for system back-up) fed a variable air volume zoning system with electric reheat throughout the facility. The roof-top units included modulating gas heat for efficient off-hour heating and supply air reset capability in the winter months. A carbon-dioxide monitoring system was installed to match outside air being supplied to the building with the occupancy load, therefore reducing the energy consumed in unnecessary heating and cooling of outside air. Several areas of the facility required special consideration in design; including fully-operational pathology and pharmaceutical labs, a CT scan and MRI suite. Fume hoods, room pressurization and control, humidity control, HEPA filtration, and cryogen venting were all part of the various designs that Service Mechanical provided.

Canadian National Railway

Tucked away in Homewood Illinois is Canadian National Railway’s US headquarters. To keep up with the increased use of rail shipping, they invested in a new state-of-the-art command center. This 2-story, 30,000 square foot addition to their current facility boasted redundant HVAC systems, demand-control ventilation, fire suppression isolation dampers, central humidification, modulating electric heat, and complex integration of several control systems. In addition, trade coordination was especially tight due to the fire suppression systems installed for the space and the ceiling plenum to protect the command center and the systems serving it. Service Mechanical led the MEP coordination and installation process through the sharing of ACAD shop drawings among various trades.

Fish Barrier

Due to the large quantity of Asian Carp swimming upstream into the Chicago Sanitary Ship Canal the United States Army Corps of Engineers (USACE) was commissioned to provide a electrical fish barrier to prevent the fish from infiltrating Lake Michigan. The fully redundant HVAC and process cooling system proved to be quite a challenge because of the small site constraints and very tight timeline. 30-ton split systems feed a common ductwork system to provide space cooling and heating to the electrical equipment rooms that serve the barrier. In addition, the electrical equipment was water cooled by an indoor stainless steel closed-loop evaporative cooler. The elaborate pumping system allows any of the three deionized water pumps to serve any of the three electrical pulser units and any of the other three potable water pumps to serve the spang units. All three water systems (deionized, potable and well) are treated with non-chemical water treatment systems. Service Mechanical Industries designed a modular pump skid that was built off site to help expedite the installation process and provided numerous design assist and value engineering ideas to the USACE to help expedite of project.
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