In the First Edition of this classic text, Roger Haines devised a simple building-block method which enabled students to quickly learn about the operating principles and applications of all the basic devices and subsystems used in HVAC control. The new Fifth Edition, completely revised by Douglas Hittle, takes into account the many technological changes that have arisen since then. Crystal-clear guidelines on combining control devices, circuits, computers, and HVAC equipment into efficient control systems that are accurate and energy-efficient are presented along with hundreds of charts and illustrations which provide data critical to the understanding and design of modern HVAC systems. These include: psychrometric charts and tables relating to optimal levels of temperature and humidity at specific altitudes: block/flow diagrams which show control component function; circuit diagrams of important electrical control system components; schematic diagrams showing the configuration of various control systems.

1 Control Theory and Terminology.- 1.1 Introduction.- 1.2 What is "Control"?.- 1.3 Elementary Control System.- 1.4 Purposes of Control.- 1.5 Control Action.- 1.6 Energy Sources for Control Systems.- 1.7 Measurement.- 1.8 Symbols and Abbreviations.- 1.9 Psychrometrics.- 1.10 Relationships.- 1.11 Summary.- 2 Pneumatic Control Devices.- 2.1 Introduction.- 2.2 Pneumatic Control Devices.- 2.3 Control Cabinets.- 2.4 Air Supply.- 3 Electric and Electronic Control Devices.- 3.1 Electric Control Devices.- 3.2 Electronic Control Devices.- 4 Fluidic Control Devices.- 4.1 Introduction.- 4.2 Wall Attachment Devices.- 4.3 Turbulence Amplifiers.- 4.4 Vortex Amplifiers.- 4.5 Radial Jet Amplifier.- 4.6 Fluidic Transducers.- 4.7 Manual Switches.- 5 Flow Control Devices.- 5.1 Dampers.- 5.2 Steam and Water Flow Control Valves.- 6 Elementary Control Systems.- 6.1 Introduction.- 6.2 Outside Air Controls.- 6.3 Air Stratification.- 6.4 Heating.- 6.5 Cooling Coils.- 6.6 Humidity Control.- 6.7 Dehumidifiers.- 6.8 Static Pressure Control.- 6.9 Electric Heat.- 6.10 Gas-Fired Heaters.- 6.11 Oil-Fired Heaters.- 6.12 Refrigeration Equipment.- 6.13 Fire and Smoke Control.- 6.14 Electrical Interlocks.- 6.15 Location of Sensors.- 6.16 Summary.- 7 Complete Control Systems.- 7.1 Introduction.- 7.2 Single-Zone Systems.- 7.3 Multizone Air Handling Systems.- 7.4 Dual-Duct Systems.- 7.5 Variable-Volume Systems.- 7.6 Reheat Systems.- 7.7 Heat Reclaim.- 7.8 Fan-Coil Units.- 7.9 Induction Systems.- 7.10 Unit Ventilators.- 7.11 Packaged Equipment.- 7.12 Other Packaged Equipment.- 7.13 Radiant Heating and Cooling.- 7.14 Radiators and Convectors.- 7.15 Heat Exchangers.- 7.16 Solar Heating and Cooling Systems.- 7.17 Summary.- 8 Electric Control Systems.- 8.1 Introduction.- 8.2 Electric Control Diagrams.- 8.3Electrical Control of a Chiller.- 8.4 Electrical Control of an Air Handling Unit.- 8.5 Example: A Typical Small Air-Conditioning System.- 8.6 Electric Heaters.- 8.7 Reduced-Voltage Starters.- 8.8 Multispeed Starters.- 8.9 Variable Speed Controllers.- 8.10 Summary.- 9 Special Control.- 9.1 Introduction.- 9.2 Close Temperature and/or Humidity Control.- 9.3 Controlled Environment Rooms for Testing.- 9.4 Summary.- 10 Digital and Supervisory Control Systems.- 10.1 Introduction.- 10.2 Hard-Wired Systems.- 10.3 Multiplexing Systems.- 10.4 Computer-Based Systems for Monitoring and Control.- 10.5 Benefits of the Computer System.- 10.6 Training for Maintenance and Operation.- 10.7 Summary.- 11 Psychrometrics.- 11.1 Introduction.- 11.2 Psychrometric Properties.- 11.3 Psychrometric Tables.- 11.4 Psychrometric Charts.- 11.5 Processes on the Psychrometric Chart.- 11.6 Hvac Cycles on the Chart.- 11.7 Impossible Processes.- 11.8 Effects of Altitude.- 11.9 Summary.- 12 Central Plant Pumping and Distribution Systems.- 12.1 Introduction.- 12.2 Diversity.- 12.3 Constant Flow Systems.- 12.4 Variable Flow Systems.- 12.5 Distribution Systems.- 12.6 Building Interfaces.- 12.7 Summary.- 13 Retrofit of Existing Control Systems.- 13.1 Introduction.- 13.2 Economic Analysis.- 13.3 Discriminators.- 13.4 Control Modes.- 13.5 Economy Cycle Controls.- 13.6 Single-Zone Systems.- 13.7 Reheat Systems.- 13.8 Multizone Systems.- 13.9 Dual-Duct Systems.- 13.10 Systems with Humidity Control.- 13.11 Control Valves and Pumping Arrangements.- 13.12 Summary.- 14 Dynamic Response and Tuning.- 14.1 Introduction.- 14.2 Dynamic Response.- 14.3 Tuning Hvac Control Loops.- 14.4 Summary.- Abbreviations Used in This Book.- Symbols Used in This Book.