Now in its fifth edition, Electricity and Controls for HVAC-R equips readers with the information needed to work effectively with all types of motors and control devices found in the heating and air-conditioning industry. Prior knowledge of electricity is not required as this book begins with discussion of essential basic electricity and electrical circuits concepts. Numerous schematic diagrams and step-by-step troubleshooting procedures are included to acquaint readers with all of the different types of circuits commonly encountered in the HVAC-R field.

Stephen L. Herman has been both a teacher for industrial electricity and an industrial electrician for many years. He has worked as a maintenance electrician and as a class "A" electrician, and was an instructor of Industrial Electricity at Lee College in Baytown, Texas.

Section I Basic Electricity Unit 1 Atomic Structure Unit 2 Electrical Quantities and Ohms Law Unit 3 Measuring Instruments Unit 4 Electrical Circuits Unit 5 Electrical Services Unit 6 Wire Size and Voltage Drop Unit 7 Inductance Unit 8 Capacitance Section II Control Circuits Unit 9 Schematic and Wiring Diagrams Unit 10 Developing Wiring Programs Section III Motors Unit 11 Split-Phase Motors Unit 12 The Shaded-Pole Induction Motor Unit 13 Multispeed Motors Unit 14 Three-Phase Motor Principles Unit 15 The Squirrel-Cage Induction Motor Unit 16 The Wound Rotor Induction Motor Unit 17 The Synchronous Motor Unit 18 Brushless DC Motors Section IV Transformers Unit 19 Isolation Transformers Unit 20 Autotransformers Unit 21 Current Transformers Section V Control Components Unit 22 Overloads Unit 23 Relays, Contactors, and Motor Starters Unit 24 The Solid-State Relay Unit 25 The Control Transformer Unit 26 Starting Relays Unit 27 Variable-Speed Motor Control Unit 28 The Defrost Timer Unit 29 The Thermostat Unit 30 Pressure Switches Unit 31 The Flow Switch Unit 32 The Humidistat Unit 33 Fan-Limit Switches Unit 34 The Oil-Pressure Failure Switch Unit 35 Solenoid Valves Unit 36 The Short-Cycle Timer Unit 37 Methods of Sensing Temperature Unit 38 Gas Burner Controls Unit 39 Oil Burner Controls Section VI Troubleshooting Using Control Schematics Unit 40 Introduction to Troubleshooting Unit 41 Room Air Conditioners Unit 42 A Commercial Air-Conditioning Unit Unit 43 Heat-Pump Controls Unit 44 Packaged Units : Electric Air Conditioning and Gas Heat Section VII Ice Maker and Refrigeration Controls Unit 45 Household Ice Makers Unit 46 Commercial Ice Makers Unit 47 Refrigeration Controls Section 8 Solid-State Devices Unit 48 Resistors and Color Codes Unit 49 Semiconductor Materials Unit 50 The PN Junction Unit 51 Light-Emitting Diodes (LEDs) and Photodiodes Unit 52 The transistor Unit 53 The Unijunction Transistor Unit 54 The Silicon-Controlled Rectifier Unit 55 The Diac Unit 56 The Triac Unit 57 The Operational Amplifier Section IX Solid-State Controls Unit 58 Programmable Logic Controllers Unit 59 Programming a PC Unit 60 Analog Sensing for Programmable Controllers Glossary Index