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HVAC School - For Techs, By Techs

Aug 31, 2021

In today’s short podcast, Bryan explains the differences between sleeve and ball bearings. Techs often make some avoidable mistakes because they either don’t know the difference between the two or don’t notice the bearing type on their equipment.

 

On a basic sensory level, ball bearings tend to be louder than...


Aug 26, 2021

In today’s podcast, Trevor Matthews from Emerson talks about horizontal scroll compressors. Throughout the podcast, we refer to Bulletin AE4-1338 (R3). You can find that bulletin HERE.

 

Horizontal scroll compressors are common in mobile applications, like buses and trains. They’re shorter in height than other...


Aug 24, 2021

In today’s short podcast, Bryan discusses buck-boost (auto) transformers and what they do.

 

Autotransformers are not automatic; the “auto” prefix comes from the fact that autotransformers only have one inductive winding. That winding is shared by the primary and the secondary, so it is not an...


Aug 19, 2021

In today’s podcast, John Ellis joins Bryan to talk about indoor air quality (IAQ). He also explains the ideal process for providing IAQ solutions. John has a lot of experience work as a consultant for people who have respiratory issues.

 

The HVAC and IAQ fields intersect in the areas of thermal comfort, humidity,...


Aug 18, 2021

In today’s podcast, Scott Krasman from TZOA, Andrew Greaves, and Kaleb Saleeby join Bryan for a conversation about mental health in the trades. We have a greater awareness of mental health than we ever did before, and although some of us may make fun of the topic, it is something we should focus on as HVAC technicians...