Aspiring heavy vehicle technicians will appreciate the easy-to-follow language this book offers in conveying the foundational concepts of mobile heating, ventilation, air conditioning and refrigeration. Written in an understandable, straightforward style that clarifies the technical language and concepts used in today?s HVAC and truck-trailer refrigeration field, this book delivers exclusive information on HVAC and mobile refrigeration technology. State-of-the-art coverage includes a section on thermodynamics that serves as the basis for both truck HVAC systems and mobile refrigeration equipment. General truck technology as well as specialty product information is accompanied by logical photo sequences for maintenance tasks that technicians perform everyday in the field.