The contents of the text-book are tailored to suit the requirements of all the accredited Indian Universities for undergraduate course, AMIE (India) and post-diploma courses in Refrigeration and Air Conditioning. The book begins with the re-capitulation of the concepts of Thermodynamics and Heat Transfer followed by in-depth study of all topics relating to Refrigeration and Air Conditioning. The Concepts are well supported by the analytical approach and lots of high graded solved problems developed by author himself to give in-depth analysis of the whole subject. Brief reference is also made on the problems of Global Warming Potential (GWP), Ozone Depletion Potential (ODP) and the use of CFC free refrigerants and substitutions under the chapter on Vapor Compression Refrigeration. Very comprehensive Tables and Charts for Thermodynamic Properties of Refrigerants are added as Appendix. Another added feature of the book is solved problems of engineering services and civil services Examination which will be of immense utility to the students