Now in its fourth 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, plus 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. With an emphasis on electrical safety, plus an all-new troubleshooting unit, this edition of Electricity and Controls for HVAC/R also features expanded information on thermostats, short cycle timers, heat pressure controls for refrigeration, variable frequency drives, and more!

Preface
Safety

Section 1 Basic Electricity

Unit 1-Atomic Structure
Unit 2-Electrical Quantities
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 2 Control Circuits

Unit 9-Schematics and Wiring Diagrams
Unit 10-Developing Wiring Diagrams.

Section 3 Single-Phase Motors

Unit 11-Split-Phase Motors
Unit 12-The Shaded Pole Induction Motor
Unit 13-Multi-Speed Motors.

Section 4 Three Phase 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.

Section 5 Transformers

Unit 18-Isolation Transformers
Unit 19-Autotransformers
Unit 20-Current Transformers.

Section 6 Control Components

Unit 21-Overloads
Unit 22-Relays, Contractors, and Motor Starters
Unit 23-The Solid-State Relay
Unit 24-The Control Transformer
Unit 25-Starting Relays
Unit 26-Variable Speed Motor Control
Unit 27-The Defrost Timer
Unit 28- The Thermostat
Unit 29-Pressure Switches
Unit 30-The Flow Switch
Unit 31 The Humidistat
Unit 32-Fan Limit Switches
Unit 33-The Oil Pressure Failure Switch
Unit 34-Solenoid Valves
Unit 35-The Short Cycle Timer
Unit 36-Methods of Sensing Temperature
Unit 37-Gas Burner Controls
Unit 38-Oil Burner Controls.

Section 7 Troubleshooting Using Control Schematics

Unit 39-Introduction To Troubleshooting
Unit 40-Room Air Conditioners
Unit 41-A Commercial Air Conditioning Unit
Unit 42-Heat-Pump Controls
Unit 43-Packaged Units: Electric Air Conditioning and Gas Heat

Section 8 Ice Maker and Refrigeration Controls

Unit 44-Household Ice Makers
Unit 45-Commercial Ice Makers
Unit 46-Refrigeration Control.

Section 9 Solid State Devices

Unit 47-Resistors and Color Coed
Unit 48-Semi-Conducor Materials
Unit 49-The PN-Junction
Unit 50-The Light Emitting Diode
Unit 51-The Transistor
Unit 52-The Unijunction Transistor
Unit 53-The Silicon Controlled Rectifier
Unit 54-The DIAC
Unit 55-The TRIAC
Unit 56-The Operational Amplifier.

Section 10 Solid State Controls

Unit 57-Programmable Controllers
Unit 58-Programming a PC
Unit 59-Analog Sensing for Programmable Controllers.