The book explains the European and national legal regulations and standards. It clearly presents which standards the plant builder or installer must apply. Selected examples illustrate the safety equipment that the systems require and demonstrate the implementation of the regulations in practice. A strict distinction is initially made between the marketing and operation of the systems. However, it also shows how both areas are interconnected. The new series "Refrigeration - Air Conditioning - Ventilation COMPACT" particularly enables practitioners, lateral entrants, and beginners to quickly familiarize themselves with individual topics in refrigeration, air conditioning, and ventilation technology. It is produced in close collaboration between VDE Verlag and cci Dialog GmbH.