This text has been designed for students taking mechanics and technician courses at technical schools, colleges and other training institutions. It is a practical guide to refrigeration and air-conditioning maintenance and service. The "Motivate" series has been developed to meet the need for practical, appropriate and up-to-date technical and vocational core textbooks. The series is based on the principle that each book must be relevant to the needs of the reader, and contain all that is required for a comprehensive understanding and study of the subject area. Each title in the series highlights the key concepts; includes illustrations, examples and exercises; features end-of-chapter summaries allowing for self-check, followed by exercises and questions; answers to the questions and a list of key words.
Safe practice; behaviour of matter; electrical principles; liquids and vapours; the vapour-compression cycle; other forms of refrigeration; psychrometry; air conditioning; compressors; condensers; evaporators; driers; refrigerants; throttling valves; fluid flow; food spoilage and preservation; fans and pumps; thermal insulation; lubrication; refrigeration controls; materials and hand tools; commissioning equipment; preventive maintenance and repairs; answers to questions and answering hints.