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HVAC School - For Techs, By Techs

May 31, 2022

In this short podcast, Bryan talks about distributors and external equalizers and why we need to use them together.

When older Carrier heat pumps (with pistons) would run in heat mode, the metering device would be outside. In those cases, the port on the liquid line would be on the opposite side of the metering device....

May 24, 2022

In this short podcast episode, Bryan talks even more about sine waves and center-tapped transformers.

Power is generated at the power plant when an energy source (such as steam) is used to drive a drive shaft. The resulting current can be mapped as sine waves, which actually represent points on a circle; there is a...

May 17, 2022

Bryan describes the tricky concept of power factor and why we should care about it. He also compares power factor to a beer mug to make the topic easier to understand.

Power is often represented on a sine wave, which is a curvy line that marks the state of electrical energy at different points on a circle. Power gets...

May 10, 2022

Bryan lays down some motor speed facts in about 10 minutes in this short podcast episode.

We can figure out how quickly a single-phase motor (PSC) will run if we understand how many cycles it will make per second. In the USA, the standard hertz is 60 Hz (60 rotations or magnetic alternations per second). Motors...

May 5, 2022

Neil Comparetto and John Semmelhack of the Comfort Squad join Bryan to discuss high-quality value design in a high-performance home. They explain how they design HVAC systems (heat pumps) for low-load homes in ways that are affordable, efficient, and comfortable.

High-performance, low-load homes need to be...