Greenheck’s line of Dedicated Outdoor Air Systems (DOAS) for high percentage and 100 percent outside air continues to grow with the addition of two new models. Pre-engineered rooftop ventilator models RV-75 and RVE-150 with energy recovery offer capacities up to 16,000 CFM, up to 50 tons of packaged cooling and up to 1,200 mbh of indirect gas-fired heating. Featuring 2-inch double-wall construction and R-13 thermally broken foam insulation, both models include a top-mounted condenser and an upgraded controls platform with a standard web user interface. The factory-programmed, wired, and tested controller can operate as a standalone unit or integrate with a Building Management System.