For courses in Electricity, Electronics and Wiring for HVAC/R and Principles of HVAC/R. This book provides a comprehensive but simple presentation of electricity and electronics that technicians in the field of modern HVAC/R need to be successful. Published in two main sections, the first section covers basic electricity and basic electronics related to the needs of air conditioning refrigeration technicians, while the second section of the book covers practical circuits and systems. Table of Contents 1. Electron Theory. 2. Magnetism. 3. Ohms Law and the Electric Circuit. 4. Series Circuits. 5. Parallel and Series Parallel Circuits. 6. Electric Meters. 7. Batteries and Electromotive Force. 8. Alternating Current. 9. Electrical Safety. 10. Capacitance and Inductance. 11. Electrical Power and Energy. 12. Transformers. 13. Phase Shift and Power Factor. 14. Electric Motors. 15. Motor Applications. 16. Electric Wiring. 17. Semiconductor Devices. 18. Freezer Circuits. 19. Air Conditioning and Heating Controls and Circuits. 20. Commercial Systems. 21. Standing Pilot Furnaces. 22. Electronic Ignition Gas-Fired Furnaces. 23. Boilers. 24. Oil Heat. 25. Electric Heat. 26. Ice Makers. 27. Troubleshooting Strategies. 28. Miscellaneous Devices and Accessories. 29. Repair Strategies. 30. Testing and Replacing Common Devices. 31. DDC Controls. Features Up-to-date comprehensive coverage–Of wiring diagrams, basic electricity and electronics. ~Provides students with the most modern HVAC/R theories and the use of electronics in control systems. End of chapter questions–Of basic electricity and electronics. ~Helps students review material and self-test their knowledge and understanding of the topics.