HVAC CAD Drafting refers to the use of Computer-Aided Design (CAD) software to create detailed technical drawings and schematics for heating, ventilation, and air conditioning (HVAC) systems. These digital blueprints include duct layouts, piping diagrams, equipment placement, and airflow calculations, ensuring accurate planning, coordination, and installation in residential, commercial, or industrial projects. HVAC CAD drafting plays a crucial role in improving design accuracy, reducing errors, and streamlining collaboration between engineers, architects, and contractors.