This course covers theory, operation, diagnosis, and repair of Air Conditioning and Heating systems. This course also covers the principles of air conditioning. Topics include various A.C. types, the diagnosis of control door operation & malfunctions. Air Conditioning & Heating systems theory & repair are studied in the classroom. Practical work is on actual systems: Recycling refrigerant, testing for sealants, testing for refrigerant type, evacuating, replacement of components, charging, and performance testing the systems is lab activities. (Prerequisites: ATMP 1207 Basic Electricity.) Offered Spring.