The Daikin/Goodman DFG Commercial Gas Packaged Air Conditioners are built to perform, with features and options that help provide low installation and operation costs, superior indoor air quality, efficient operation, and longevity. Daikin Packaged Rooftop Units (RTUs) are designed with fast and easy installation in mind for both new construction and retrofit. Installers can benefit from our field-installed options such as roof curbs for new constructions.Daikin Rooftop units are intended for comfort cooling applications in normal heating, ventilating, and air conditioning. Daikin packaged rooftop units are built with serviceability in mind, designed to make future maintenance and service on the unit easy and accessible.