This second volume of a comprehensive curriculum guide for the heating-ventilation-air conditioning-refrigeration-solar student is designed to assist high school area vocational centers or community college instructors in the implementation and operation of comfort training programs. The guide is comprised of ten units of instruction within three areas: refrigeration theory, refrigeration service procedures, and heat-transfer methods and systems. Presented for each unit are unit numbers, instructional objective, reference materials, audio visual materials available, outline, performance conditions, student evaluation criteria, procedure of instituting unit, unit tests, and exams. (LRA)