The Limitations of Ducted Car Park HVAC
Traditional HVAC designs for underground parking require massive sheet metal ductwork to extract vehicle exhaust. These ducts consume critical overhead clearance and create dead zones where stagnant air accumulates. Jet fans eliminate this ductwork, using high-velocity aerodynamic thrust to create a sweeping momentum transfer across the entire floorplate.
Demand-Controlled Dilution
Jet fans operate strictly as dilution engines. They are integrated with a network of Carbon Monoxide (CO) and Nitrogen Dioxide (NOx) sensors. When localized toxic gas concentrations exceed safe thresholds (typically 25-35 ppm for CO), the specific jet fans in that zone ramp up via VFDs, pushing the contaminated air mass toward the main exhaust shafts, optimizing brake horsepower consumption during low-traffic periods.