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HVAC School - For Techs, By Techs

Nov 29, 2016

This podcast is a high voltage A/C electrical class that Bryan gave to some of the Kalos apprentices.

The high voltage journey begins with basic electrical theory. Basically, a difference in charge is needed for electrons to move and generate power.

Motors, which are inductive loads, are the greatest users of power that...


Nov 22, 2016

In this episode, Bryan talks to Justin Skinner about the standard gas furnace sequence of operation.

Regardless of the furnace type, it all begins with a heat call on W...

Then, the furnace checks the safeties to make sure ignition is possible and safe. If all systems are a go, the inducer motor comes on and clears a...


Nov 21, 2016

Central Florida techs know the Southern winter all too well. Let's face it. It doesn't get super cold here regularly, but when it does, EVERYONE FREAKS. We get an abundance of service calls for unpleasant but not truly problematic conditions when people use their heaters.

When people first turn on their heat, they can...


Nov 17, 2016

In this episode of the HVAC School Podcast, Bryan talks with Jeremy Smith about refrigeration tips, terms and processes. They also cover the similarities and differences between A/C and refrigeration.

Being on-call as an A/C tech is not all that different from being on-call as a refrigeration tech. Similarly, the...


Nov 10, 2016

In this episode of the HVAC School Podcast, Bryan talks with Tim Bagnall about flowing nitrogen.

Many techs don't flow nitrogen. Some may say that it is overkill, but it has been shown that flowing nitrogen displaces oxygen while brazing and prevents harmful scale from forming on the copper. Scale is very problematic,...