The "Basic Refrigeration and Charging Procedures" interactive training CD contains information on refrigerant pressures, states, and conditions, as well as how they apply to the refrigeration system. Vapor pressures, subcooling, superheat, saturation, latent heat, and sensible heat are explained and applied to the refrigeration cycle. Basic system components, their functions, and applications are included. Each point in the refrigeration cycle is explained in detail.
ESCO Institute, P.O. Box 521, Mount Prospect, IL 60056-0521; 800-726-9696; www.escoinst.com.