Section I: Refrigeration. Introduction to refrigeration. Refrigeration cycles. Systems and classifications. Section II: Refrigeration tools and materials. Tools and test equipment. Materials and fittings. Section III: Heat transfer and temperature. The nature and effect of heat energy in refrigeration. Methods of heat transfer. Section IV: The heart of the refrigeration system. The compressors in mechanical refrigeration systems. Evaporators. Section V: Electrical components of refrigeration systems. Basic electricity for refrigeration. Electrical components of refrigeration systems. Section VI: Modern applications of refrigeration. Heat pumps. Air conditioning systems. Appendix. Glossary. Index. Acknowledgments.