Nortek Global HVAC has added the R7DA, a combination dedicated outdoor air system (DOAS) and conventional space conditioning rooftop unit (RTU), to the Reznor® and Mammoth® branded R7 Platform product lines.
The R7DA is a direct expansion (DX) package DOAS/RTU offering a drop-in replacement that fits many existing RTU brand roof curbs. The product has a 1-inch-thick R-13 foam-insulated panel cabinet and a small footprint, making it suitable for new construction and retrofits.