Hey how's, it going how's it going with you and your life. How are things summer's here? It's hot working, long hours, probably if you're in the HVAC industry, which I assume you are saying, is how you're listening to the podcast that helps. You remember some things you might've forgotten about HVAC as well as helps you remember some things you forgot to know. In the first place I am Brian and this is a short episode.

This short episode is about the things that you should have learned right off. The bat in school a lot of times guys will say that to me, they'll say no matter what it is. If I give a tech tip about pulling the wheat ports out of a condenser fan motor, for example, they'll say well, that's the you shoulda learned that your first day of school, apparently the first day of school, should have been very long because I've got a very Long list of things that apparently everybody should have learned in the first day of school, but if it was up to me, if I was in charge of a program, this is actually what I would teach the first day of school. So these rules, these laws, if you will these four things, are the things that I would say are probably the most important for you to start off with, if you're getting in the HVAC trade.

So, let's see if you agree anyway before we get started with that, though, I want to give thanks to our great sponsors, which are quite a few nowadays, but I'm very thankful for that Mitsubishi. Electric cooling and heating carrier uei in the hub, smart kit and the wrs scales, refrigeration technologies at refrig tech, comm makers of all the vipre products that you love so much as well as nylon american radeon, ik imrad. The turbo 200 find out more by going to american radeon, accom air, oasis makers of the bipolar and nano indoor air purifiers, true tech tools, not a sponsor, but a big fan of true tech tools. You can find out more by going to true tech tools.

Calm for all of your tool needs as well as retro tech makers, a blower doors, duct leakage, testers right, soft makers of excellent manual, J manual D, so on and so forth. Software, if you're in need of design software and look no further than writes off and then finally biz pal biz pal com, my buddy Patrick long. If you're looking for a good employee, you want to use a unique new way of recruiting for your company. So there you have it, those are the people who make HVAC school possible truly really and truly, let's talk about these four rules.

So there's four rules, but we're gon na start off with one just sort of absolute concept and is high-to-low. If you want to think of high to low, I mean it's most of us would understand this pretty intuitively, but if you just think of gravity right take something up on an airplane drop it. It falls. So there's a gravitational force that pulls things from high to low and we can relate to that.

In fact, when I try to teach people this concept, I'll use a lot of different examples, an example of a ball rolling down a hill and the potential energy difference between the top of the hill on the bottom of the valley. Especially when you talk about sine wave and voltage and all that sort of thing, there's a lot of different ways, you can explain that. But what we're talking about is differentials in energy, so you can think of differentials in intensity differentials and force differentials and concentration, even but there's differentials and energy states, and I've talked about this before in energy compared to watt. I've got a couple different episodes of that, but this specifically just get down to the nitty-gritty.

What are the four rules? High pressure goes to low pressure. High temperature goes to low temperature. High voltage goes to low voltage and high humidity goes to low humidity. Another way of saying that is everything in nature tends towards equalization, but that doesn't sound this cool right.

I mean that sounds kind of sciency, but everything tends to just sort of come together and create a stasis create a balance in energy. But if you remember, high pressure goes to low pressure. High temperature goes to low temperature, high voltage goes to low voltage and high humidity goes to low humidity. Those are the forces that drive everything that we do in our industry and there's tons of examples of this.

I mean, if you think, about what a compressor does. Compressor creates a differential and pressure without that compressor, generating that differential and pressure. You don't have an air conditioning system, there's no potential energy. There's no motion! You have to get the motion.

You have to get the differential going and you do that by creating that pressure. Differential temperature, we're continuously manipulating the temperatures of refrigerants, or even if you don't use refrigerants that say you use water or glycol we're constantly, manipulating the temperature of a medium that we want to transfer heat from something to something. So we want to transfer heat from the inside of the house to the refrigerant inside of that evaporator coil. So you have to have a difference in temperature to do that in order to get energy to move, you have to have a difference and we create that difference.

I first starting by creating a differential and pressure which then ends up manipulating the latent phase of the refrigerant, so that we get a very low temperature of a berta coil in relationship to the air around it. So that that way, the hot and the air goes to the cold in the evaporator coil. My grandpa used to tell me this. I think my grandpa took like six months in an HVAC class when he was younger and whenever we would talk about HVAC.

He said I know the main rule taught goes to cold. In truth, it's actually not that simplistic, there's actually energy transferring both ways, but on average hot goes to cold. High pressure goes to low pressure. High temperature goes to low temperature, that's how it goes to cold.

High voltage goes to low voltage. High humidity goes to low humidity, and so when you have an example of humidity, let's say you have a cloth and on one side you have an air mass that has higher humidity content and then the other side. You have an air mass that has lower humidity content, that moisture wants to travel from the higher concentration to the lower concentration on the other side. That is what we would call diffusion.

It wants to create a stasis, it was to create an equilibrium, and so it wants to diffuse through that porous cloth and it will diffuse from the higher humidity concentration to the lower humidity concentration in voltage. If we have a neutral, that's sitting at zero volts to ground, it's all bonded together and then we have a hundred and twenty volt, either AC or DC on the other side, and we make a path between them. The electrons will go from the higher voltage. The higher energy state to the lower energy state and then the same thing with temperature temperature.

We talked about this. A lot of the podcast is average molecular velocity. It's the speed of the molecules that are bouncing around, so we would call that an intensity. So, there's an intensity of the molecules, there's a velocity of the molecules and that's what we call temperature and it will move from higher intensity higher velocity to lower intensity, lower velocity, whether it be through radiation, convection or conduction.

It will eventually create an equilibrium, because that's just what energy does it seeks in equilibrium, so there we go, that's it. That is literally all there is to this podcast. This is gon na super short. I just wanted you to get that, because I think we would be good to mention these four things more often when we bring people into the field when you have an apprentice riding in your truck and you're, just constantly show them how everything we do is examples Of these four things primarily and I'm sure there are others, I'd be interested in hearing from you about what others you would definitely add in to this sort of high goes too low conversation, so you can email me and Brian be rya, and at HVAC our school Comm Brian, with hawai at HVAC, our school calm, and let me know your thoughts on that, but I think this is a good starting point as it stands right now when I get a person into Kalos.

The first thing I want to talk about is energy and how it moves and sure you can get real in-depth. You can talk about chemical, energy, storage and potential energy storage and kinetic and can go through all this different stuff, the different ways that heat is transferred, but before I do any of that, I just want to establish hi goes to low in these four areas. All right, I hope that helps and I look forward to talking at you next time on the HVAC school podcast.