You, the nightbot, will follow you everywhere Brent. The nightbot owns everything that I think you know what I think Justin might be more popular than the nightbot, though so it's like a war between Justin and nightbot, because I think Justin's modding everybody's channels. Now so hey guys how's everybody doing, hopefully you guys are doing well. Hopefully you guys can hear me.

Okay and let's hope this stream goes well feel bad, because Zach stream was not working out too well for him. So, let's hope that the heat out here in California doesn't mess up my internet, so so I got a bunch of topics I want to cover and then I want to try to get to your your questions too. I'm gon na cover this really quick, and hopefully I don't confuse the hell out of you guys, okay, what I want to do and then I'll I'll address this at the end of the stream too, for the people that come in towards the end. So a lot of people have been asking me about t-shirts and I've been obsessing over shirts for a while.

Now it's been difficult for me because I'm crazy, when I try to do things and I've spent so much money on samples and different things trying to find the right shirts. I finally found the right shirts and then in the process, I've been doing a bunch of research on how to distribute the shirts, like e-commerce store all this different stuff, and I finally placed a giant order for the shirts. I have a crap ton of shirts, but the whole ecommerce thing is a nightmare. Okay and the more you look into it to do it legit it's so stupid having to have, because I guess they just passed.

Some new law that, like almost every state, wants to collect sales tax now so if I was to sell them like that, I have to report and pay sales tax for every state. It's just like a disaster. I have to get sales tax permits. It's something that I don't want to do: okay, it's a nightmare, so I've got an interesting way that I'm gon na address distributing these shirts.

I'm also going to try and I put in an application with merch by Amazon. I don't know if I'm gon na get approved, I've already been denied once, but I tried opening a new account, we'll see if that goes through. So here's the deal. Hopefully this doesn't confuse you guys too much.

I've got a bunch of shirts and I'm just gon na give them to you guys. Okay, what I'm asking is, if you guys feel the need to donate money. You know to cover the cost of the shirt, then so be it. I'd really appreciate it.

If not I'll, still send you a shirt, okay, um we're gon na do a test run with a good amount of the shirts. So what I want you to do - I'm not gon na announce this on my channel. Yet this is just gon na be on this stream and we're gon na see how this goes. If you guys are interested in a shirt and I'll show them to you right now, okay, tell me what size you want and what color you want and I'll send one out to you.

Okay, if you can throw you know a donation to cover the cost of the shirt or a donation to my channel, so be it if not I'll, still send you a shirt. Okay, like I said down in the bottom of this video, if you guys were so kind to try to send me a donation for the channel, I have a PayPal account. You can just use my email hvac, our videos at gmail.com or you can donate via. I have a patreon account set up too, but the problem with patreon is that it's a monthly subscription service.

You can cancel at any time, but you know I just want you guys to be aware. If you sign up on patreon, that's like a monthly service. Basically, so it's at your guys as well, but again I'm gon na go ahead and give these shirts out, if you guys, can throw a donation great. If not, it is what it is.

Okay, between the costs of everything and stuff the shirts. I've got about 15 dollars in the shirts. Okay, that's my cost on them, plus whatever the freight is to get them your way, but again, I'm just gon na eat it, because the video you know that this channel has paid for me to be able to purchase these shirts anyway. So this is just the way we're gon na go with it.

I'm gon na try it out and see how this works out, see if I lose my ass on it, if not whatever their promotional shirts. So let's do it. I'm gon na show the shirts real, quick and then I'll get into the topics. Okay, so I'm wearing the white one right now.

So that's the black, that's the black and it says big-picture diagnosis on the back. I prefer the white one myself because it has kind of a wretch. Ladies, like teal blue, I don't know if that teal is coming through on the camera, but it's like a real light: teal blue, it's kind of cool and then there's a gray one. So again, my email is HVAC our videos at gmail.com, so I have tons of sizes guys.

I have a few of the really really giant sizes. If you're a big boy, I didn't buy a crap ton of giant sizes. So I think I have like one or two five XL a couple: 4 XL couple: three XL. I have a crap ton of extra large and large.

I have a few mediums, so you guys feel free to send me an email and we can discuss everything HVAC. Our videos at gmail.com and I'll get them sent out to you guys, okay, so I'll cover that towards the end of the video to the end of the stream, but I just wanted to bring that up right now. I really appreciate the super chats that are coming in guys, so yeah Isaiah, I do have a 4 XL. I don't have a lot of them, but I do have one so send me an email and I'll do it.

I can so alright. So, let's go to my topics and I'll cover some more about the shirts and stuff later so, and also it's while supplies last, ok guys, I only I mean I only have so many that we're gon na do this with. So when I run out, I run out so and, like I said, I'm not going to announce this on my actual YouTube channel. I'm just gon na do this in the stream and just see where it goes, people watch it and that's fine, but my buddy.

I just kind of want to see if I can get rid of these and then and then I'm gon na set up something with merch by Amazon or so hopefully something like that. So all right, let's see guys, awesome, really really appreciate the super chats guys. So, ok keep in mind alright. So very interesting.

I've been getting a lot of questions for the last couple. Videos. Ok, the two videos that I released was one on the I think it was an exhaust fan bearing replacement and then was the other one. The glycol unit, let me see here, was the other one, the glycol unit, I think it was.

Let me see, I already forget what my videos are about. Let me even see her right, real, quick, sorry guys, like distracted, trying to remember what my video was about. Oh, no beer walking beer walking with a refrigerant leak. That's what it was okay, so we had the beer walking with the refrigerant leak.

Let me see if I can get the chat back up here, real quick. I lost the chat for a minute there. We go all right there we go so the beer walk-in refrigerant leak. I had another service tech go out and diagnose the refrigerant leak.

I went out there remove the refrigerant repaired the leak, it was no big deal. I always get these questions, but I got a lot of questions. Why don't you use a bee tank on your torch? Why don't you use a smaller tip? Why don't you do this? It's it's all about what you're comfortable with guys. Okay, I pretty much do everything with a number two tip.

These super chats guys really appreciate it. Man, I usually do everything with a number two tip on my oxy acetylene torch and that's pretty I'm pretty comfortable with that. I do have a rosebud that I'll use if I get onto seven eights or bigger, but for the most part I roll with the number two and I run a hot flame when I braze things up, I like to be in and out really fast. So that's why I mentioned in the video when I was doing the repair on return, bins, they're very, very thin, so I was being very careful trying not to overheat it because they'll flare out and open up and that would have been a nightmare on that situation.

So that's one of the things people ask me about the you know that this the torch that I use - okay, the other thing that I get is is why did I invert my tank when I was recovering the gas first off and another question was: was someone? Was saying why did i hook up to the vapor port and not the liquid port and another person asked why you know okay? So let's address this recovery tanks, you can't trust the colors on the knobs. Okay, you can never trust the colors on the knobs, because you can have two tanks that you got the same day and one of them the liquid will be red and one of them the liquid will be blue okay, so you always got to read. What's on the tank? Second off on the recovery tanks, I saw an interesting thing from a peon, maybe like a year ago, they print they put something out there about about inverting the tank. I don't know if there's actual science behind it, but it seemed logical.

Okay, so what they say is is that there's a dip tube inside the recovery tank - and I verified this because I took a recovery tank apart, so the liquid port on the recovery machine has a dip tube. That goes all the way down to the bottom of the tank, and if you are recovering gas and pushing it into the tank, it has to push through that dip tube and that dip tube is less than a quarter inch in diameter. Id on the inside. Of that line, it's actually a little plastic dip tube too.

On a side note, if you ever pull apart a recovery tank you'll be surprised without dirty. They are to you they're, pretty disgusting inside kind of makes. You really want to put a filter dryer when you're putting gas in and out of it too anyways. So I saw a peon staying and I just started doing it that way.

Okay, so what I do when I recover gas, is I invert my tank? I hook up my process hose to the vapor side of the tank. I flip the tank over, I put it in ice water and I pump the refrigerant in. I find that to be a very effective method for me. There's all kinds of other ways we can do it.

We can add sub coolers to the machine different things. In my opinion, a sub cooler is a pretty big restriction unless you're making it yourself and you're, using like 3/8 inch line, but CPS makes one. I think they call it a molecular transfer meter, which is a trippy name, but it's called a sub cooler as all of that it is, but there's uses almost like 3/16 inch line. It's it's really small and there's a lot of line in there and I just see it as a big restriction, so I'm not a fan of the sub coolers but to each their own.

Ok, so I just like to do it this way. I pull the cores out. I use my a peon mega flow manifold and it works really well, for me, so is what it is. The the other video that I released was the bearing video, and that was the one where I had an exhaust fan go down.

I had to stop what I was doing in the middle of the day, rush out to the Coachella Valley, which is about an hour and a half from my house or from where I was working. So I had to rush out there because a restaurant couldn't open up because their exhaust fan well, they had to close because their exhaust fan went down, so the unit had a bad bearing I kind of showed a few tips on that. I really wish I could have shown some more of the work, but you know it is what it is. It was a busy and it's hot and I needed to get them up and running so got a lot of questions on that too.

One of the questions that I had gotten guys, these super chats really appreciate it. Yeah all send me emails guys and we'll talk about this stuff and see what we can do about getting these shirts out to you. So, ok, cool. You know I have a feeling.

These emails are gon na blow out. That's why I only wanted to do it on this stream and see what happens so. One of the questions that I had - and this is a very interesting one and I'd kind of like to ask to you guys in the chat: do you guys see bees and wasps anymore? So when I was coming up in the early to mid 90s in the trade we had bees and wasps everywhere, all in the roofs and everything we don't have very many wasps and bees anymore, guys out here in my area and knock on wood. I don't see him like I used to.

It was to the point that we used to have to carry wasp spray in our vans or on a sidenote. If you, if you don't, have wasp spray, duct adhesive or the spray adhesive that has like a webbing built into it, you can spray that that's really awesome, because it just like Gunks up the wasps but um. I don't. We don't see wasps here anymore, which is kind of a trip.

Rarely do we see bees either we hear about him every once in a while. We hear about like a killer bee colony coming through in Riverside County, which is the county that I live in, but I rarely ever see bees and wasps anymore. You know like I'll go out to my garden and I see bees flying around, but I don't see the wasps nest like we used to in the ACS. Do you guys still see him a lot kind of Kerry yeah? It's it's interesting! So also, you have a lot in Kentucky okay, yeah out here in SoCal, it's just uh.

It's it's not a, not a big thing anymore, it's funny too, because I I used to just take a hose and just act like an idiot on the roof and just spray them down and stomp on them knock on wood. I never got stung so interesting. Okay, so um next thing is a purpose of the sight glass. Someone had asked me: what's the purpose of a sight glass in a system? Okay: this is a really tricky question to answer, because in a refrigeration system a sight glass can be used as a couple things number one.

It tells you the state of the refrigerant at that point in the system. Okay, so we have a sight glass. We put it in on the liquid line. Typically, you want the sight glass as close to the meter or the expansion valve as possible.

Okay, but in all reality, most of the time they're installed on the roof, but it's best to have it as close close as possible to the metering device to tell us the state of the refrigerant, because we all know right that an expansion valve operates off. Of the principle of having a solid column of liquid going to that expand, so if we have a metering device in there and we we put the sight glass there, it helps us to know if we have liquid refrigerant going to the the expansion valve now. This is on a refrigeration system, guys, okay in air conditioning, an expansion valve will operate with the same principle. It needs a solemn, solid column of liquid, going to the expansion valve, but air conditioning systems.

If they don't have a receiver, you can't really use a sight glass as a charging method. Okay, you can use it as a gross under jar indicator, which I've mentioned I think before, but you you don't want to use it as a charging indicator like we would on a refrigeration system on a refrigeration system that has a receiver and an expansion valve. We will typically once the system gets close to being down to temp, okay, probably within five to ten degrees of box temp, we will clear the sight, glass and then okay and I'll go into this in a minute and then we're gon na add our winter charge. If the system has a head pressure, control valve okay, but that's a whole nother thing, so I'm gon na keep going on the sight glasses.

So someone had asked me: why do we have a sight glass now? Another thing a sight glass can do. Is a sight? Glass can act as a moisture indicator, so different brands have different little pieces of paper. I can't remember the name of it, but there's a paper that reacts to moisture, okay and there's a paper that reacts to acid and it sits right in the middle of the sight, glass and it'll change, colors. So, on a spoilin sight, glass, your green you're good to go, yellow means you have moisture, okay and then there's some other ones that had different colors.

I think on the emerson ones. I think if it's is it, if it's purple, it's got moisture. I can't remember, because I don't use the Emerson ones very much, but so a sight glass can also be a moisture indicator. Okay, we typically don't have a sight glass on a system that doesn't have an expansion valve okay.

That doesn't mean you can't put one on there, but it's not gon na really do much good. If you don't have an expansion valve okay, if you have a capillary tube, you don't want to excite glass on there. The best place, in my opinion, to put the sight glass in a perfect world, I'd like to see probably two sight, glasses. Okay, I'd like to see one right before the metering device and I'd like to see one at the roof.

And then that's a really good way to tell if you have any kind of restriction, because if you have a clear sight, glass on the roof and then you go down to the metering device and you have a flashing sight glass, it's possible that you either have Some sort of flash gas - that's that's caused by a restriction. Who knows it's an indication of a problem? Okay, but for the most part we typically see a sight glass on the roof. Someone had asked someone had sent me a question I think, or a video. They were asking me to help him with a refrigerator and the sight glass was installed on the suction line.

There's no purpose of having a sight glass on a suction line. Guys, I mean other than to see the state of the refrigerant, but you're just going to see a vapor mixture on the suction line. So it's you know silly if there's a sight glass on the suction line. So the next thing I want to cover really quick and I'll get to your guys's questions in the chat is the winter charge? Okay, the winter charge is the extra refrigerant we have to add to the system for it to operate properly.

When we have a head pressure, control valve and/or, a head master valve okay, so it's a low ambient control as what a head pressure control valve is and what it does is. It helps to maintain the pressure drop across the expansion valve, because an expansion valve not only doesn't need the proper liquid refrigerant going to it. It also needs a certain pressure drop, especially on the older belts they're more susceptible to pressure drop issues. So you want to have a set pressure drop across that valve.

That means the the pressure drop from the outlet of the expansion valve to the inlet of the expansion valve. Okay, it needs to be a set pressure, especially if it's a thermostatically-controlled expansion valve now. If it's an electronic or an EEV they're a lot less dependent on a pressure drop and you can actually drop your head pressure way lower when you have an EEV or an electronic expansion valve, but um, so the winter charge is the extra refrigerant we have to Add to the system for the head pressure control valve to work properly as we get a little bit closer to winter. I'll do some more videos.

I've got a lot on my channel on head pressure, control valves and head master valves, so I'm not gon na bore. You guys with all that right now, but we'll address that a little bit more and if anybody has any more questions about those feel free to email. Me spoilin has lots of great documentation on their website. I'm trying to think of the document right now and for the life of me.

It's not popping up in my head there's a certain document that explains the head pressure, control valves, anyways I'll, remember here in a few minutes. So alright, let's see so HVAC rookie I'll I'll go a little bit into the headmaster, but not too crazy. Okay, so a head pressure or head master is just simply there to maintain it's. It's there to drive the pressure up and the head pressure up in the system.

Okay and its purposes, is to maintain a certain pressure drop across the expansion valve. Okay. So what it does is it floods, the the condenser with liquid refrigerant, the liquid refrigerant backs up into the condenser and the the head pressure control valve kind of throttles a little bit. It allows a little bit of refrigerant to come out still and it drives up the head pressure and at the same time, if we have the proper winter charge in the system, the the receiver basically has extra liquid refrigerant, okay and the receiver pumps liquid refrigerant down To the expansion valve okay, it's kind of hard for me to explain it completely on this stream.

I'd love to show a little bit more in a video and it'll. Explain it some more okay! So I'm gon na get off that topic and we'll talk about that. More when I make a video on it all right, let's see okay, so mr. Johnnie boy, why do you condenser fan motors turn off at certain temperature? Even if the compressor is running? Okay, so that's called fan, cycling, condenser fan cycling and it's a low ambient control.

It's another method of controlling the head pressure: okay, to help to maintain that pressure drop across the expansion valve condenser fan cycling, depending on how it's done it can be, it can replace a headmaster. It can help a headmaster or head pressure control valve. It just depends. Okay, so I have some condensing units that are made to operate in really really low ambient temperatures, so it has fan cycling and it has a head pressure control valve.

My my personal opinion is: is I'm not as much of a fan of fan cycling as I am of using a head pressure control valve? I tend to find in my experience that, because we have mild weather here in Southern California, so our winters are 50 degrees. Okay, our extreme lows is like 28 30 and our, but our average temperature in the winter is probably 50 degrees. So we will have a head pressure control valve, that's bypassing, but it doesn't run that way for very long. Okay fan cycle controls.

What I find in mild weather is when the condenser fan motor turns off. It drives up the head pressure really fast and then it turns back on and then it drops the head pressure really fast and then it's a vicious cycle back and forth and if you actually pay attention to the sight glass in the system. While that's happening. It's very violent.

The sight glass flashes clears flashes clears flashes clears, so it's sending a vapor mixture when it's fan cycling down to the expansion valve, and it tends to kind of throw things off and it's a very violent operation in mild climates now. I could totally understand why a sight gladder I mean a fan. Cyclone would work much better in really cold climates yeah, because it's not cycling on and off so much, but here it'll literally turn the fan off turn the fan on turn. The fan off turn the fan on, and the system just kind of wreaks havoc because of it.

So hopefully that answers that. Okay, gentlemen, if you guys have questions, please put them in caps lock. So that way myself and the moderator Justin can try to make sure that we get to them. Okay, because I don't want to miss your guys's questions, but I want to try to get to them so, okay, and if you guys have already put questions in there, don't hesitate to throw them in again.

Okay, guys do all systems need headmasters, no, not necessarily okay. If your ambient temperatures don't drop too low, then no, not necessarily I could see here in Southern California, we have mild climates, so you know we could probably get away without head pressure controls at all low ambient controls. If we go into our local mountains, I mean you know even at 50 degrees yeah the system's not gon na be as efficient, but it'll operate just fine, so we can take our low ambient controls off of most of the time now, let me say if you Have a remote ice machine that means where the condensers on the roof and the compressors down inside or some sort of a remote ice machine that has hot gas defrost, which is pretty much all of them that I know of just about, except for. If it's like a flake or cuber, you have to have a headmaster.

Okay, a headmaster is very important, especially when you have hot gas defrost, so even on bigger walk-in systems that have hot gas, defrost or even cool vapor defrost they're gon na need a head pressure. Control valve, because we need to maintain that dish temp to make sure we can defrost stuff properly so ice machines, remote systems that have hot gas defrost definitely needs some sort of heavy head pressure, control or low ambient controls. All right, let's see what else have I seen refrigeration with a VFD on the condenser fan bill Burnett? Yes, I have. I have seen VFDs I've seen ECM condenser fan motors.

I definitely think it's a great great method, but here's my problem here in Southern California. We have really dirty power. I've said this a million times. Okay, we don't have proper power conditioning on our equipment, especially when we're dealing with restaurants, so VFDs don't do too well.

I've got a restaurant that I was working at today. That has three bad VFD drives on all three of their air conditioning units and they're actually in bypass they're Lenox units, so they have an auto bypass built into them. So when the VFD drive failed, the unit just bypassed it and ran the system operating and I've changed. Two of those VFD drives already, and everything checks out.

Okay and, in my opinion, it's just because of our dirty power, we have spikes, we have drops. We have all kinds of problems with the heat a lot of times when you're dealing with packaged units they install the VFD drives in really bad locations. For instance, I have a carrier unit that I've was working on making a video. I haven't released it yet that is a two-speed carrier unit for the indoor blower motor, so it has a VFD drive on the blower motor right, so it speeds up and slows down.

One first and second stage call well that VFD drive every unit. Let's see, I changed five units at that restaurant three of them have had be bad VFD drives and I've got one on order right now they said I can't get the VFD drive until October. It's back ordered and I'm number 196 on the list of people trying to order these drives. In my opinion, it has a lot to do with where they're installing the VFD drives, when you're working with packaged units when you install them in the conditioned space so they're installed in the airflow in the the blower assembly area.

That just seems like a horrible place because give all kinds of moisture inside that just running through that VFD drive, there's all kinds of electronic components in there that thing's not NEMA for approved. I mean the humidity inside the blower assembly and everything is just a mess and then I've seen them on the Lennox units. They installed the the VFD drives for the indoor blower motors in the compressor section where it gets really hot. So if we had them installed properly and we had proper power conditioning, I think VFD drives - are a great method to to control, to be a low ambient control to to do everything I think they're great, but I think that the problem is is that we just Throw them in a package unit throw it on a roof and let the technicians deal with it and half the times the VFD drives just get bypassed permanently.

You know because the customer doesn't want to fix them. So seems like a lot of wasted money. Do you PM the drives? Yes, and no, it depends I mean so my yeah. They need a lot of stuff.

They need a lot of power. Conditioning bill. Burnett just rest do IPM the drives. No, not necessarily I mean because the customers don't want it.

You know. Yes, that that's they definitely should, but most of the time customers they don't. You know they're just buying a unit here in Southern California, we have an energy code called title 24, it's our energy efficiency code and it basically says that you know you have to have an economizer on your air conditioner. If it's five tons or bigger, you have to have actually it's not if it's five times or bigger, if it's 2,000 CFM's of airflow or more, you have to have a economizer fully modulating.

You have to have a two-speed blower motor if the unit's a multi-stage unit. Okay, you have to have PSC motors. If you don't have ECM motors, I mean they have all these different things, so the customer doesn't even have a choice: they're just buying this equipment and they're getting thrown to the Wolves and then they're like well. I don't have the money to maintain that when that $ 900 VFD drive fails, you know and a lot of the packaged units.

They don't come with warranties unless it's a big national account. So, unless it's broken, when, when I install it, they don't come with warranties half the time, you know some do but a lot of the commercial stuff doesn't. If you look at the carrier package units, the Linux package units that even the train, they don't come with. Warranties, unless the customer buys extended warranties and different things, so you know the customers, they don't know to maintain the equipment and they don't want to maintain it.

So all right, let's see okay, so kirk Lane. You said you wanted to know what brand my booster pump was. I'm you're not uh. Oh yeah, the booster pump that I used was a Milwaukee booster pump and it was an M 18 Milwaukee booster pump.

I ended up taking that back though it yeah, I bought it out of desperation, because I didn't have my pressure washer with me that day and I ended up taking it back just because it kind of did what I needed it to, but I really don't have Any use for that transfer pump, so I took it back. Okay, why is the condenser fan motor not like the blower in the air handler? I don't know what you mean by that Nathan. Do you mean, like the style, give me some more information and I'll try to answer that a little bit more DM locksmith when working with racks? What circumstances need to be present to verify flashing sightglass indicating a low charge? That's that's an interesting question. Okay.

First off, I don't do any supermarket rack work. Okay, so my stuff is just small refrigeration racks, like you guys see in my videos. The first thing is: is yes, there's a lot of stuff you have to think about when you're working on a system? Okay, you can't just walk up to a system and say: hey the sight. Glass is flashing.

It's low, uncharged! Okay! You need to make sure that you have proper air flow across the evaporator. You need to make sure you have proper air flow across your condenser. You need to make sure the system is operating properly. You need to make sure it's not frozen up.

Iced up, you know and make sure that's good. Once you've verified air flow across your condenser and your evaporator, and then you find that the system is running low pressures and the sight glass is flashing. Then yes, it's time to start considering adding refrigerant to the system in finding a leak. Okay, but you can't just jump to a system and say it's flashing.

I need to add gas, okay, so for you guys doing PMS, don't just go up and assume just because it's flashing, we have a guy that does PMS for us and we just tell him like he'll call me and say: hey. I got a flashing sightglass on this rack and I'll. Ask them. Is the unit ISTEP and he'll go downstairs and say yeah the evaporator Zeist up? Okay, the sight glass might flash when it's iced up, so let's defrost it and then address whether or not it's flashing.

We'll put our gauges on it and go from there. Okay, there's other instances too, that can you can have a flashing sight glass when you have a proper charge in the system and that's a very interesting one that I've actually never seen myself. But I've read a lot about and that's a broken dip tube in your receiver, so the receiver has a tube that comes all the way down to the bottom of the receiver and it pulls the liquid refrigerant off. So the outlet line of the receiver has a dip tube.

That goes all the way down, probably about two inches for an inch from the bottom of the receiver and it pulls the liquid off the bottom of the receiver, because that receiver is not 100 % liquid. It's a vapor liquid mixture. So if you have a broken dip tube, you could be pulling the vapor off the top and the system might be properly charged. That's another head-scratcher! So all right! Okay, I'm going to yeah best to clean TXV, strainers, yeah, yeah! There's! There's a lot of Matt sprinkle you you, you definitely need to clean TXV strainers before you start.

You know adding gas and different things to the system. Okay, so I want to get to my list here. Okay, so I covered that okay question that I had today. It was a very interesting one and it was hey.

How do I get in the HVAC field? Okay, for you guys that are already in here and know what you're doing? Okay, you guys get it but to get started in the HVAC. You filled first. What I would say, as I would suggest, that's you look up a local trade school. Okay, I encourage you to check out community colleges.

I don't know the guy that asked me the question. I don't know if you're in the States, the United States or not, but here in the United States, for those of you that are out of the States, we have local community colleges that you usually have HVAC programs. What I want to stress to you guys is this: doesn't matter if you pay thirty thousand dollars for an education for an HVAC program with like a private school or you pay, you know four hundred dollars a unit or something like that or five hundred dollars. A class whatever it is at the Community College HVAC school is not gon na teach you everything.

Okay, to learn the HVAC trade you're gon na need a classroom. Education, you're gon na need hands-on education. You're gon na need a proper apprenticeship and you're gon na need time, because it's going to take some time to learn. So what I would encourage you to do is look up.

Your local community college see if they have an HVAC program, go shadow, the the classes you don't have to sign up just reach out to the school and say: hey, I'm interested in taking these classes. Can I come sit in on a class for a day or two and go sit in on a class talk to the instructors? Okay, see what they have to say see what the education is like. I would encourage you to try to find a job right away. A lot of companies are hiring right now and they're willing to hire apprentices.

Okay, it just depends and a lot of times what you could do. I would suggest that you get involved in night school, even if you're not working in hvac. Yet you can still keep your day job. You can go to night classes at the Community College.

You can get about a semester through or something like that and then, when you go knock on the door of the HVAC company, you can say: hey, I'm really interested in getting to HVAC. I've been going to the Community College for about a month. Now I'm doing night classes and I wanted to know if I can come work for you guys as a helper and I can as a maintenance guy as an apprentice and then you could learn while you're still going to school. That would be my instructions or my advice on how to get into the HVAC field.

Okay, I definitely think that you're not going to get everything in the field and you're not going to get everything in school. But I think you need a good mixture between the two there's lots of great information online too. But you need to be careful because there's a lot of information, that's incorrect online too. I don't know everything.

Okay, don't take everything that I say is golden. You guys need to research. If you hear something that doesn't quite sound right that I said I would consider. I would suggest that you, research it okay, a really good resource for education online is Brian ORS website.

It's HVAC school, okay, his website address is actually HVAC, our school calm, and but he has the HVAC school podcast. He has a YouTube channel and he puts out lots of great educational information, so I'd suggest you guys reach out or find his channel and look up what he has going on too. Okay, so hopefully that answers that Tom trees. Where did I get my compressor cooler for cooling, the compressor there's a company here in Southern California, and it's called I put a link in my video - show notes it's called what is it? I can't I can't think of the name right now, but there'll be a link in the show notes of this live stream when it when it turns into a video.

So when this live stream is over it'll pop up on there, it's called a cool presser as the name of it and I'm trying to think of the name of the company, but it's also being distributed by sup Co. So you will actually start seeing it in the supply houses so soon you'll be able to just get up at your local supply house right now. I think it's limited in supply houses and I bought mine directly from the company they're in like Orange County, or something like that. So all right guys if I'm missing your questions, just keep putting them in here I'll get to them.

Okay: okay, let's see what else, why is the condenser fan motor style, not like the style as the air handler blower it's just because of what they're doing? Okay, so the blower? It's how they're moving air in the amount of air that they're moving in a condenser fan motor situation. A propeller style fan works perfect because there's nothing. You know it's all about space and indoor blower motor usually doesn't have room for a propeller style fan, but then also that indoor blower motor is moving out, probably a lot more air than the condenser. Well.

I should be careful saying that, because that condenser fan motor actually moves quite a bit of air too, but I think it's probably I don't. I don't want to say. I know the answer for sure, but I would say the reason why you have a propeller fan on the condenser and like a squirrel. Cage fan on the blower is probably just because of space restrictions.

Okay, they don't have room to put cowls and different things to direct the air out, and I would also think that if you had a condenser fan motor style blade like a propeller style blade, it would also get very dirty very quickly. Okay, a squirrel cage blower assembly is a little bit easier to clean and I would say that a propeller fan would probably end up bending from the dirt and the gunk that you find in the indoor air, because our indoor air is actually really dirty. So all right, okay, so I'm gon na get to some more quarters some more stuff I have on here guys. Let's see, let's see what else? What do we see here? Um, let's see, I already covered that okay, this is a really good one.

So someone had said wide or asked me why I don't like three-in-one start kits. Okay, so sup Co has a three-in-one start kit for refrigeration compressors and it has a start capacitor. It has a sort of a relay inside of it and what you can do is you can put them on there to verify. If start components are bad and sometimes people leave them on there, so my opinion on the three-in-one start kits for refrigeration compressors is I carry them in my truck and they're a great resource to try to no starting components? Okay, that's what I use them for, but I typically don't leave them on the system.

What you'll find in refrigeration is, or on this on the Start kits themselves, is that they say: there's a there's one for a third horsepower compressor, there's one for a half horsepower. Compressor and there's one for a three quarter: horsepower compressor, okay, but what I find intriguing is that if you go to a three quarter, horsepower, let's just say a half horsepower, compressor, refrigeration, medium temp compressor and you pull the start capacitor off. And you look at the micro farad ratings, it might say a hundred and eighty-nine to two hundred and twenty seven micro farad's for the start, capacitor. If you find a half horsepower Universal three-in-one and you rip the sticker off of it, because there's actually a normal capacitor sticker, underneath that sticker you'll notice a huge size, difference and you'll notice that the micro farad's are a lot smaller.

So, in my opinion, I don't like leaving those on the compressors permanently, because I find that they damage the compressors. Okay, I like to put the factory OEM start components back in the system as much as possible. I'm not saying that I've never left a three in one on, but I just tend to not leave them on there. I'm not a fan of them.

Okay, they're they're, a method of me for not having to use a compressor analyzer anymore. So if you look right up here in the back, that's a hermetic, compressor analyzer. It has rocker switches on it and you can simulate different capacitors and we used to use those when we had bad starting components or you can use them to rock a 3-phase compressor. All kinds of different things, but when we would use that hermetic compressor analyzer, we would put it on the system.

If the compressor wasn't running we'd verify we had proper voltage, you'd put it on there. You'd select the correct capacitor because it has multiple capacitors inside of it and then you'd push the start button and the compressor would start okay, but the three in ones week, they're, so cheap and they're so easy to have. Now, if I have bad starting components before I go to the supply house, I'll just grab a three in one put it on there. If the compressor starts, then I feel good, but I'm not gon na leave it on there.

I'll put the factory components back in the system. Alright, let's see what else I got in here, guys, there's a lot of stuff going on in the chat right now. What do you use to rectify dirty power? David Craig? I am NOT an electrician, so I'm not gon na really pretend like. I can answer that too much.

I know that they make cheesy. Basically, power monitors, okay, that you can buy at our supply houses, but I know they make them on a bigger industrial level too, but we can buy I'm trying to think of the company right now. I actually have a notebook right here. Is it hold on yeah? I don't know where it is, but there's a company that makes a it's a phase monitor basically, okay and you.

It monitors three-phase power coming in and three-phase power going out. You can install them on air conditioners or refrigeration units and you can set up different parameters. Okay - and you can do things like hey if the power drops within two, this voltage kill the control, voltage and it'll shut the unit down. Now that's a cheap way of doing power conditioning, but when you're working with VF d drives, I would definitely say that they need to get electricians that work with VF d drives and can make sure that everything's proper on those things a lot of times.

I've done some reading on VF d drives and having the proper bearings and then also there's a there's, a special grounding ring. You need to put on those things on the VFD or inverter drive and comprar motors. Basically that helps them from ruining the bearings. I'm not super smart in that, but there's there's a lot of stuff that we need to do better with our V of D drives, especially if we're mainstreaming them like we are.

I find the failure rate is ridiculously high right now. So alright, okay, when a condenser evaporator fails and they replace a new one, why don't they get rid of the old one when a condenser evaporator fails? Mr. Johnny boy are you? Are you saying that, like people leave their crap on the roof, because I see that all the time I don't know, if that's what you mean, I see a lot of people that will leave crap on the roof. Okay, let's see what else here? How do you handle an irate customer? Have you ever walked away from a job and a customer, Brian yeah? I definitely have okay.

The first thing is: I'm very polite to customers, even when they're pricks, okay, if they're being an I'm gon na, kill them with kindness. Okay, that's my way of like my passive-aggressive way to get back at them. Is I'm just gon na be nothing but kind to the point that they get pissed off at me because I'm being nice, okay and I love doing that - that one is my fun way of doing it, because it's a way of me so and shut the heck Up you know or shut the hell up. I don't know why I'm watching my language - and you know that's that's what I do with, but you know for the most part.

You know I just kind of let stuff roll off me if a customer's being a punk. I just kind of you know I'll: let it go for a little while and they want to get silly. Then yeah, I fired a customer before I've walked. I was working like a bar one time and the lady was just nickel and diming me and she was just being a punk, and you know you didn't do this and why did you charge me this and I just finally looked at her and I said you Know what I just ripped up the bill and I said, don't ever call me again and I walked out the door.

It was worth the $ 400 bill, and you know the three hours of my time or whatever just to rip that up in her face and say, don't call me again in front of all of her customers at the bar cuz. She was being a punk like in front of her customers, and I was trying to be cool and stuff, and I just looked at her and said: don't call me again lose my number crate ripped up the paper and walked out the door that was pretty uh Felt pretty good, but I mean for the most part you try to diffuse most of that stuff. You know, you know some customers I'll get down and I'll ask him like hey. You know I sense a lot of hostility here.

What's going on, do you not trust me because I don't want you to not trust me and I'll. Ask him point-blank like what's going on, you know I tried to be rude about it. You know, but I always tried to kill people with kindness as much as possible too so. Alright, let's see what else.

Okay, I'm gon na go to my thing right here. So Oh interesting thing - and this is something that I knew and I said it wrong. Okay, when I did my video on the exhaust fan, it had a locking collar bear and I think they're called eccentric, locking collar bearings and I'm not a fan of those. I vented about that.

I like a set screw bearing okay. So when I was explaining about the locking collar bearing I said, this is how you would use a locking collar bearing and I actually gave the wrong instructions. Okay, so a locking collar bearing when you are tightening the locking collar for those of you, you guys can probably picture this okay, when you're tightening locking collar on a bearing. I used to have it in my head and this is why I said it was because - and I a couple years back, I learned that I'd been doing it wrong the entire time, because I tried to use the logic in my head when I was tightening the Locking collar, I would go the opposite direction of the shaft rotation, because that seemed logical to me.

That seemed like centrifugal force would tighten it as it was going, but actually the right way to tighten the locking collar on one of those bearings is to tighten it in the direction of the rotation, and I did actually mention that wrong. In my video and I wanted to address that and make sure that people understood that concentric there you go, I said eccentric huh. Thank you Bill appreciate that man, okay, let's see what else someone had asked me about a sound Blake it on a compressor and they said, what's the point of putting a sound blanket on a compressor and they were worried that the compressor was gon na get too Hot okay - and yes, there is a little bit of truth to that, but you have to remember in residential air conditioning in most refrigeration systems our compressors, our refrigerant cooled, okay, so that means the suction gas. Coming back to the compressor is: what's cooling that compressor when you're dealing with a scroll, compressor, they're, typically refrigerant cooled, okay, so putting a sound blanket on there, it's gon na, be so small.

The amount of heat that's gon na be underneath that so the sound blankets really not going to make a huge huge difference. I could imagine in a really hot ambient, maybe but for the most part, there's a lot of equipment out there. That has sound blankets on the compressors, especially on the residential side and there's nothing wrong with it. So, okay, okay, so truth miles.

If you're charging a Linux, that only calls for the approach method charging do you use it or sub cooling and superheating okay. So I would use a little bit of both. I would use the approach method and I would use the sub cooling okay. So yes, a lot of the older Linux, especially the ones that don't have micro channel condensers.

They would tell you to use the approach method to charge them approach is just basically an ass backwards way of measuring the performance of the condenser, which essentially is kind of the same thing as subcooling, but it's just a different way of looking at it. So the approach temperature is your liquid line temperature on the surface of the liquid line versus your outdoor ambient temperature, okay, and it's a difference between the two. What is your sub coin? Your sub poin is the saturated temperature of the liquid refrigerant versus your liquid line. Temperature, okay, so they kind of both are a performance measurement of the condenser, but approach is just the way that Linux has gone for a very long time.

So when I'm working on a Linux unit, I will typically use their charging metrics. Look at the approach see where it's at, but I will also pay attention to sub cooling. One of the things you have to pay attention to, especially when you're working on the Linux units. If you're working on a multi-stage package unit is where the condenser is at because on the V shaped multistage package units, they actually split the condenser, sometimes into four sections or even five sections, and there could be a discrepancy between three four degrees of ambient temperature.

On the inside of that condenser and on the outside of that condenser, maybe the Sun is hitting the outside, which is like the first and second stage, maybe and the inside. The third and fourth stage might not be getting any Sun, so you have to pay attention to that. So, if you're using an approach method, you got to make sure you're measuring for the condenser that you're working on or the stage that you're working on. Who am? I missing I'm missing someone: oh wow.

We hit over 210 viewers right on that's cool guys, that's really cool, okay, see what else. Okay, let's see what else we got going on here. Man, it's walk microphone adjustment. This is a really good one, so Manitowoc ice machine.

This is an older style before they came out with their indigo machines. This is their ice thickness, probe. Okay, the way that the ice thickness probe worked on the older style machines. Okay was that basically they're looking for this little metal piece right here, okay to ground out on the water, it's not to ground out on the ice.

A lot of people thought that this needed to touch the ice for it to go into a harvest; okay! No, that is not the case, and I know I'm jumping over a lot of steps on a manitoc ice machine, okay, but so this is a thickness probe. Now, there's a little adjustment screw right here that I'm showing right now. Okay, and if you look at it, I don't know if the cameras showing it there's no threads on that adjustment screw. Okay, there's no threads on the top, there's no threads on the back.

So the question was: how heck does that thing thicken the ice? If there's no threads well, there's actually threads on the inside, and this is a simple question, but it's it's! It's a logical question. There's actually threads on that inside of that little plastic bushing, so there's minimal threads, so there's minimal adjustments. So that way, someone doesn't go in there and crank this thing to where it's sitting way. Super thick, okay, same thing on their microphones, the newer indigo machines, don't use a metal ice thickness probe that grounds out anymore.

They actually have a microphone that listens for two sound frequencies, and you can actually tell if you're working on one of the machines. You can talk into that thing and you'll see the frequencies spike because it just works like a mic. I think they look at a hundred Hertz and a hundred and twenty hurt frequencies. Anyways has the exact same set screw on the microphone style and it doesn't look like there's any threads, but there actually is some on the inside.

So okay, HVAC rookie. That's another really good question someone say: can I explain how I use a tuning fork? Okay, that's another thing that I mentioned in my video guys a lot of times. I call tools the wrong thing.