An AC Technician (Installation) installs, repairs, and maintains air conditioning systems by studying blueprints, assembling components like ducts and wiring, ensuring proper electrical and refrigerant connections, and troubleshooting issues. Key responsibilities include installing residential, commercial, and industrial units; diagnosing and troubleshooting problems; performing necessary repairs; and ensuring compliance with safety standards. Strong technical skills, communication abilities, and the ability to use specialized tools are essential.