The purpose of a heating, ventilation, and air conditioning (HVAC) system is to provide and maintain a comfortable environment for occupants in a building or to provide and maintain an environment suitable for the process being conducted.
The ability of system operators to diagnose and correct operating problems with automatic temperature control (ATC) systems requires a working knowledge of HVAC system types, HVAC system components, the intended function of these components in the HVAC system, and the interaction of HVAC equipment and controls Many problems that are considered HVAC system design problems have been found to be ATC system operation problems.
About the Book
This book is part of a series dealing with the design, operation, and maintenance of building systems. This book can be used as an office reference, for formal in-house training, or for informal self-study.
This book is intended to provide a complete and concise reference for anyone involved in the operation and maintenance of automated control systems for building heating, ventilation, and air conditioning systems (including chillers) and their interface with building automation system (BAS) systems. Energy Management Control Systems (EMCS) are so diverse that it is impossible to cover them in this book.
This book assumes a basic knowledge of HVAC equipment and systems and associated control systems. To enable the reader to use this book as a study guide, the first chapter out lines HVAC system processes and equipment, control system types and equipment, and equipment and control interactions.
Subsequent chapters cover electrical interlocks and motor starting, electrical and electronic control system diagrams, pneumatic control system diagrams, electrical and electronic control system maintenance, pneumatic control system maintenance, direct digital control (DDC) system testing, and operation and maintenance personnel Specific control system functions are covered, including training. Appendices include a comprehensive glossary of terms used in the operation and maintenance of HVAC and control systems.