Designed to guide apprentices, entry-level technicians, and first-year students through their first experiences in the HVACR trade, HVACR 101 provides a solid and thorough introduction to the field. It is the culmination of the efforts of industry leaders like the Air Conditioning Contractors of America (ACCA), Plumbing-Heating-Cooling Contractors Association (PHCC), and Refrigeration Service Engineers Society (RSES). Backed by these organizations and the high standards and cutting-edge resources that they are known for, the book begins with simple concepts that provide an overview of the world of HVACR and its main systems and components. Coverage then progresses to increasingly complex procedures, such as maintenance and inspection, installation and repair, and customer service and sales. This building-block approach, combined with numerous practical examples, makes the book the ideal resource for learning and applying key HVACR concepts.