Written and presented by Jim Johnson, this HVACR technician training course presents an overview of the fundamentals of schematic diagrams. With a firm understanding of the fundamentals of wiring ...

According to Johnson, "Using Schematics To Troubleshoot HVAC/R Electrical Circuits, Part 1" came about because of feedback from the industry. "It’s shorter than our fundamentals training videos, and ...

(Nanowerk News) The American Ceramic Society and the National Institute of Standards and Technology have just released ACerS-NIST Phase Equilibria Diagrams CD-ROM Database (Version 3.2). The new ...