HVAC School - For Techs, By Techs

In this episode of HVAC School, Bryan covers the basics of heat pumps.

Heat pumps are common technologies in Florida. They reverse the sequence of the typical refrigerant circuit: the indoor coil can…

In this episode, Bryan and Nathan have a banter-filled conversation about electrical components that confuse techs. If you are looking for a serious educational episode, we suggest you look elsewhere…

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 i…

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 th…

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 unple…

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…

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 n…

In this episode, Bryan goes back over the basics and stresses the importance of diagnosing the whole system.

I'll cut to the chase: inspection is NOT overrated. Inspections help you become more famil…

In this podcast episode, Bryan goes over best practices for diagnosing and replacing an A/C or refrigeration compressor. 

When testing for a shorted compressor, make sure the compressor is isolated f…

In this episode of HVAC School, Bryan covers the "5 pillars of refrigerant circuit diagnosis" and why they matter. They are:

• Superheat
• Subcool
• Suction pressure
• Head pressure
• Air temp split (delta T)
…

In this episode of HVAC School, Bryan talks to his sons about basic electrical theory.

Electrical theory normally requires trigonometry, calculus, and all of those fun maths. However, the basics are …

This episode of HVAC School is a Kalos meeting where Bryan talks to his team about an incident where a leak was erroneously detected on the evaporator coil.

The system was three months old, and one o…

In this episode of HVAC School, we discuss the entire basic refrigerant/compression refrigeration circuit.

We are in the business of moving heat. Heat refers to motion in the molecules. Temperature i…

In this episode of HVAC School, I talk with my brother Nathan... and he whines a lot about cool tools I like.

As you might have guessed, Nathan is in the camp of people who believe that proper traini…

In this episode of HVAC School, Bryan talks to some apprentices about basic thermodynamics. That is the fancy scientific way of saying that we're moving heat.

The way we think of "hot" and "cold" is …

In this episode of HVAC School, Bryan talks to Leslie about the deceptive TXV.

Thermostatic expansion valves, also known as TXVs or TEVs, are metering devices that maintain superheat. They contain an…