<p>This 2D drawing is an HVAC device design in AutoCAD 2D drawing, CAD file, and dwg file. Heating, ventilation, and air conditioning are collectively known as HVAC. In residential and commercial structures, including houses, businesses, and indoor stadiums, it refers to the systems that control and move warm and cooled air. For more detailed information visit our pages and Download the 2D Autocad DWG file.</p>