HVAC startup checklist is an essential document for successful start-ups of air conditioning and heating systems. It serves to ensure that the necessary sequences of operation and components are in place, working correctly, and that safety and performance are verified. The typical HVAC startup checklist includes walkthroughs of the mechanical room, equipment installation, fan and motor inspection, electrical system checks, cooling tower inspections, control system checks, duct installation, commissioning and more. Working through a comprehensive checklist helps to avoid costly mistakes and maintain an efficient, properly functioning system.