This document package contains an Air Force course used to train refrigeration and cryogenics specialists. The course is organized in six blocks designed for group instruction. The blocks cover the following topics: electrical principles; fundamentals of tubing and piping; metering devices, motor controls, domestic and commercial refrigeration; fundamentals of air conditioning; air conditioning controls; and commercial air conditioning. The following materials are included in the package: plan of instruction (lesson plans) for the teacher (including outline of course content, time, support materials and guidance, training equipment, training methods, and instructional guidance); study guides/workbook for each major topic block (containing objectives, information, and exercises for each lesson), and workbooks containing review tests for each subject block. Materials are illustrated with line drawings. (KC)