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• 12 Vektor^®-MD Laboratory Exhaust Systems

Greenheck's Mixed Flow High Plume Dilution Blowers (Model Vektor-MD) were selected and installed based on performance capabilities, ease of installation, competitive pricing and their low-profile, uniform appearance. Greenheck's Vektor-MDs are self-contained exhaust systems specifically designed for hospital, pharmaceutical, university, biotech and other laboratory applications. The Vektor-MD employs a unique discharge nozzle design that entrains additional ambient air to help dilute lab exhaust fumes and then expels those fumes high above the lab building. Two sizes of Vektor-MDs (Size 27 units are 14.25 feet high and Size 36 units are 16 feet high) were selected for this project to discharge air volumes of 41,000 cfms and 84,000 cfms and to achieve plume heights of 47 and 56 feet respectively. As a result, diluted fumes discharged from the laboratories will not contaminate the building's roof, re-enter make-up air systems or drift down into surrounding neighborhoods. The 12 Vektor-MD units installed on this project can easily accommodate the 80 labs-even when all labs are in use at one time. Because the sleek, low-profile appearance of the Vector-MD units were installed on top of an attractive, rooftop penthouse screen that houses other HVAC equipment. Although somewhat difficult to reach at that location, maintenance on the units will be minimal and will only require routine motor replacement. Servicing motors will be safe and easy because motor components are easily accessible outside the contaminated exhaust air stream where the fan technology is located.

Building managers and researchers are pleased with the performance of the Greenheck Vektor-MD exhaust systems, according to Don Rau, the director of facilities management at the University of Kansas Medical Center. "The Vektor fans atop the Kansas Life Sciences Innovation Center certainly have performed well since the opening of the facility," he said. "There have been no operational or performance issues. At this point we would use the appropriate Vektor fans in any new research construction." The mixed flow impeller technology provided by the Vektor-MD units also has minimized energy consumption and overall sound levels when compared to more traditional, custom-built lab exhaust systems.