This is a main level duct layout minus basement supply/return ductwork. An HVAC Plan is a 2D or 3D depiction of all the materials or equipment required by a professional engineer to design, install, and maintain a building's heating and cooling system. The primary function of an HVAC system is to maintain acceptable indoor air quality through proper ventilation and filtration while also providing good thermal comfort. EdrawMax helps you create your own HVAC plan in simple steps.
