Designed to guide apprentices, entry-level technicians, and first-year students through their first experiences in the HVAC/R trade, HVAC 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), PHCC Educational Foundation Plumbing Apprentice & Journeyman Training Committee (PHCC Educational Foundation), 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 HVAC/R 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 HVAC/R concepts.