Understanding Basic Electricity Ð For the HVAC Contractor

Electricity is a very large part of an HVAC technicianÕs day-to-day experience. Almost every system failure involves one or more electrical components in the equipment being serviced. An HVAC technician must be fluent in line and low voltage electrical circuits. In fact, much of a technicianÕs reputation has to do with how well-versed he is in low voltage circuitry. This book will cover conductors and insulators, basic principles, transformers, series and parallel circuits, relays, contactors motors, OhmÕs Law, voltmeter, ohmmeter, flame rectification, wiring diagrams, thermostats, compressors, capacitors, impedance relays, line voltage, hydronic systems, thermocouples, electrical safety and more.