[ARIZONA (AZ) CR39, R39R, C39 Air Conditioning & Refrigeration Exam Success Course] The Arizona (AZ) CR39, R39, C39 Air Conditioning & Refrigeration Practice Course provides specialized training in the installation, maintenance, and repair of air conditioning and refrigeration systems. This course covers essential topics such as system design, refrigerant handling, and troubleshooting techniques. Participants will learn about various types of air conditioning and refrigeration systems, including split systems, central air units, and commercial refrigeration units. The curriculum includes practical exercises in system installation, maintenance procedures, and troubleshooting common issues. Emphasis is placed on understanding system components, ensuring efficient operation, and adhering to safety and environmental regulations. By completing this course, participants will gain the expertise needed to handle air conditioning and refrigeration projects effectively and to meet industry certification requirements.