Annotation This book provides a thorough introduction and a practical guide to the principles and characteristics of controls, and how to apply them in the use, selection, specification and design of control systems.

A hard copy companion to the eLearning course that serves as a practical guide to the principles and characteristics of controls, and how to apply them in the use, selection, specification and design of controls systems.

Heating, Ventilation and Air-Conditioning (HVAC)systems are omnipresent in modern buildings. This book is an introduction to all those involved in the specification, design, manufacture, installation, operation or maintainance of these systems. The book explains: • The objectives to be achieved by a system in terms of environmental control. • The description of a system - including primary equipment, means of distribution, space and load determination, and operating strategy. • The basic function of components that form HVAC systems. • The layout and functioning of common HVAC systems, including all-air systems, air-water systems, and all-water systems. • The strategies for operating systems and their basic means of control. • Identifying the most suitable type of system for different types of application. * Air-conditioning is a major growth industry, this introduction to how systems operate and how to select, design and operate them effectively * Endorsed by, and developed with ASHRAE, the leading trade body and recognised technical experts * Provides a thorough introduction to how HVAC systems function in controlling temperature, air quality, and air circulation in a controlled space.

As Humans’ need for comfort living takes priority, Heating, Ventilation and Air Conditioning systems (HVAC)would assume more importance and priority – The number and percentage of people opting, creating and living in conditioned spaces might also serve as an index for living standards. In my search for understanding the different types of styles and configurations of HVAC systems - I finally realized that I could understand the different executions only if I work with a HVAC company. This somehow materialized – I started working for Superior air- a HVAC subcontractor engaged in providing, installing HVAC systems in San Diego City in California. My learning started with studying their installations, visiting job sites and looking at construction and approved drawings. I also had the opportunity to interact with construction supervisors, experts in HVAC systems, and construction workers. The installations I visited are mostly in commercial / office buildings and involved almost all the types mentioned in the book. To facilitate ease of understanding, the book includes maximum possible images of the systems/ lay outs. I will be extremely thankful to the readers if they could give me feedback comments and any other information/images that can be included for regular updates.

A practical overview of what to consider when designing a building's heating, cooling, ventilating and humidifying systems along with their space, power, control and other requirements. Includes the latest concepts, applications, basic design problems and their solutions. Packed with examples to facilitate understanding.

Introductory technical guidance for mechanical engineers and other professional engineers and construction managers interested in design and construction of air conditioning systems for buildings. Here is what is discussed: 1. COOLING SYSTEM TYPES, 2. HEATING SYSTEM TYPES, 3. FURTHER SYSTEM AND EQUIPMENT DESCRIPTION AND DEFINITION, 4. PSYCHROMETRIC CHART.

There are two reasons why we have a new edition every four or five years. The first is that technology changes. Chapter 10, on computer-based con trols, has had to be almost completely rewritten. Fundamentals don't change, but the tools available to us do change. Evaluation and proper use of those tools makes it even more imperative that we understand fundamentals. Many of our control problems stem from the use of new devices as a solution to problems that are, in fact, control design errors. New gadgets, for example, Direct Digital Controls (DDC), will not solve basic problems and may even compound them. None-the-Iess, you will find an extensive discussion of DDC because I think it is the probable "future" in HVAC control. But it must be applied with a good understanding of fundamentals. The second reason is that I keep learning and need to pass on my new and improved understanding to my readers. Thus you will find a number of small but important revisions, a dissertation on control "modes," and a much more detailed discussion of how electronic control devices work. There are a few places where I have corrected what I now perceive to be errors. I apologize for these. I have been much encouraged by the acceptance of this book in the past, and I hope that this new edition will be helpful. Thank you for your support.