The HVACR electrical training package includes a 420-page spiral bound training manual, an accompanying instructor guide and PowerPoint CD. This book is clearly written and easy to understand, ...

An electrical schematic diagram might look like a nonsensical drawing to the layman, but to the electrical engineer, it’s a high-level documentation that provides a ton of insight and instruction. The ...

For electricity to flow, everything needs to be connected in a big ring. It’s called a circuit. For example, the lights in most houses and flats are part of a circuit controlled by the consumer unit, ...