Savvy bosses invest in high-quality schematics because clear, correct wiring diagrams underpin profitable electrical repairs.

Any wiring diagrams I show you will be for a standing pilot. Before we wire the system, let’s look at a gas valve (Figure 6). This is what the terminal block looks like on a 24-V standing pilot gas ...

The HVACR electoral 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, ...

There was a time when a hot rodder copied a basic wiring diagram out of a motor's manual and bought the switches, relays, and connectors at the local auto parts store. The wire was what was ...