Contents

• Heating Systems

• Refrigeration Systems

One of the primary responsibilities of HVAC-R techs is to maintain refrigeration equipment to ensure proper operation. This course provides the necessary information for understanding the principles and theory of refrigeration, the components of mechanical refrigeration systems, and the types of refrigerants and associated equipment. Also covered in this course are the methods used for installing, maintaining, and repairing refrigeration equipment, including domestic and commercial refrigerators and freezers

• Air Conditioning Systems

• Air Conditioning and Refrigeration (Advanced)

• Duct and Ventilation Systems (Advanced)

This series provides some key knowledge to aid you in the identification of types of duct and ventilation systems, their installation, and factors you must be aware of in determining the sizes required to meet specified building requirements. Keep in mind that the term air conditioned refers to air that has been cooled, heated, dehumidified or humidified, or any combination of these.