So so, ah, it's time to chill out and get ready for a mediocre q, a live stream if you're old enough grab yourself your favorite adult beverage and if you're not stick with apple juice, put your feet up and relax. If you have any questions, feel free to ask them in the chat and now, let's queue up the intro music. So hey everybody! How are you guys doing this evening? Hopefully you guys are doing well um for the new people. Welcome to the hvacr videos, uh q, a live stream all right.

I do these live streams on monday evenings to just kind of consolidate. Some of the questions that i get from emails. Uh youtube comments. Uh facebook comments, all that different stuff.

I get a bunch of them and so it's just easier to go, live and come on here and talk about them, so i usually do these every week covering the two videos that i did since the last live stream. Okay, as usual guys, i want to cover your guys's uh questions in the chat too. So do me a favor and put your questions in caps lock, if you guys have any um and i'll try to get to those too uh. If i don't get to you guys stuff, sometimes it happens.

I think someone a few minutes ago was saying that i've missed their question four times. Try to send it to me in an email format if i don't get to it um. Sometimes a lot of stuff goes on in here and i'm not scouring the chat, i'm you know usually go off on a rant or stare at the camera or all that stuff so feel free. If i miss your guys's questions to send me an email at hvacrvideos gmail.com - and i will try to get to it and go from there all right so as we come up to uh christmas december 25th is coming up here, really quick for those that celebrate it.

Um merry christmas for those that don't happy holidays or whatever you celebrate. Hopefully you guys have a great holiday. Okay, um my family is is ready. It's kind of a you know as as you guys are going through it too.

It's definitely an interesting year. Um. You know so um, let's hope i'm not gon na give too many hints, but let's hope that, just for one day, okay, just for one day uh when my video releases on thursday, let's hope that i can make just a couple. People really happy for that.

One day: okay um as i've been kind of teasing a little bit more and i'll, have an even bigger teaser, video popping out, probably on instagram and facebook. This week uh, i have a very special video coming up on thursday christmas eve. Okay, it's not going to be a traditional repair, video! It's going to be something really really cool, um that i am super excited. It's been a blast.

I just randomly thought of this and it just turned into a thing and it just kept getting bigger and bigger, and it's going to be really cool guys. So definitely make sure you guys check out the video that's going to post on christmas eve or december 24th. This thursday, it is going to post first thing in the morning it's going to post uh. Usually i post my videos mid-day on thursdays, but being that it's christmas eve, i'm going to go ahead and post the video at uh 5 a.m.

West coast time 8 a.m. East coast time so it'll post early and you guys will have a chance to see it and yeah that's kind of ah man. I really want to spill the beans on it, but i've been trying to bite my tongue so bad and not ruin the uh. The surprise so it's gon na be really really cool, though guys all right.

So as usual, a couple things i want to cover and, like i said i want to get to the chat here too. So let me see what i'm missing inside here um. Let me see uh, i see there's a few guesses in the chat as to what i might be doing. Some might be right.

Some might be wrong, it's hard to say all right um. I am moderatorless nah, i'm good we're good in here. Let me see what else we got in here: um, i'm walking cool or not tempi, and i'm seeing everything in here yeah. I definitely have a surprise package in the back right here.

Someone sent me a surprise package, i'm not supposed to know who it's from. I think i have an idea who it's from but uh. I don't really know a whole lot about it. My wife received the package and she's been holding off on it um.

They wanted to see me open it on camera. I have no idea for all. I know it's going to be one of those damn glitter bombs that explodes all over my office on a side note i don't know about you guys, but i've been watching some cool youtube videos of people sabotaging packages and putting glitter bombs and different things in them. For the thiefs that when they steal it, i love those videos.

Those are awesome, so uh yeah, let's get this over with real quick, i'm gon na go ahead and open up this package that was sent to me. Okay, so there's a note in the package that says congrats on 100 000 subscribers. We want to give you something better than a play button ike, designed the cut and worked on the details and rich worked on the minor edits to make sure the cut came out. Just right, so it would be perfect, so this is uh.

Ike and rich are in the chat right now, so rich fabricated and added other aspects to the project to make it pop. We hope you enjoy your gift and appreciate to say thanks for your work and your videos keep up the good work and once again thanks or congrats. So this is a congratulations, a little premature, but we'll get there soon. I think within the next month, or so we're going to get there, i'm just about to hit 100 000 subscribers on my channel.

So let's go ahead and open it up so check this out. It's a really cool sign. Now it has laser paper on it. If you guys don't know what that is, it's so that the um, the machine that cuts the stainless steel can cut it clean without burn marks and slag and different things like that.

So i'll pull the laser paper off and we'll display it in the office in the back, but hvacr videos, big picture, diagnosis, 100k subscribers, that's really cool guys and it has my snowflake icon on it right there. Thank you guys so very much i'll work on pulling the laser paper off this, but this is a really cool gift. I didn't even know this was coming, so this is really neat. Thank you guys very much.

Okay, all right! So i'm not gon na pull the laser paper off right now, but i'm sure you guys will see it in my next live stream or something because laser paper can take a little while to pull off. If you guys haven't already, even though this has been sitting in my office, there's nothing worse than installing a reaching cooler that has laser paper on it. That has been on there out in the cold, and then you try to pull it off. And it's like a nightmare.

Luckily, this has been in my house for a while. So it's nice and warm but super super nice guys, that's really cool! Thank you guys very much now. There's another paper right here too. Oh got you, okay, so i'm assuming that we're supposed to order the uh.

I see this right here. My wife didn't open this up, but there's a note on here that says to order this from amazon: it's like a uh, a light for the back of it. So we'll definitely look into that too. So, right on, this is really cool guys.

Thank you very much. That was really neat very, very cool, all right. So again, that's really cool guys thanks so much all right. So let me see what else yeah.

I definitely put an led behind it for sure it's not made out of sheet metal. It's made out of stainless steel gosh. You know what, if my family knew how to pull laser paper, i'd pull it right now, but it's gon na. It's not really something! I want to do on the live stream.

It'll. Take me a little while, but i'll definitely post a picture on social media and tag you guys and you'll be able to see it yeah. It's gon na. Take me too long to do this right now, but anyways all right, we're gon na set that back there again.

Thank you guys so very much so those that are just tuning in um. This was sent to me by ike and rich. It's stainless steel. It has laser paper on it right now, but it's a 100k subscriber plaque right here, so i'm just about to hit 100 000 subscribers.

So that's so cool guys! Thank you! So very much! That's gon na look and once i get the paper pulled off of it all right. So, let's see what we got going on what else we got um yeah. It is so when it does come off easy, it is very nice. Sometimes you can take a heat gun, there's a couple different methods.

You could do so all right, uh that was really really cool, guys very, very cool uh. Not not! You know that i'd blown away, that's really neat, so i have been trying and it's it. I go back and forth right now, but i've been trying to drink tea more on the live streams because man, i don't know about you guys, but i've been drinking way too much when it comes to this whole being stuck at home all the time man. It seems like every night, i'm drinking and trying not to so all right.

Let me see um 100 likes for laser paper. Peeling live stream, maybe towards the end, we're not going to do it right now. Okay, so definitely want to get to your guys's questions. Make sure you put them in caps lock, so something i wanted to cover.

I was talking with a service technician of mine today, and i thought this was a great topic to kind of start off on the live stream. Okay, um ryan i'll get to your question here. Let me read it real quick before i get too crazy. So, with cheaper pos systems like iotosa autosa and uh ivanko replacing quality systems, do i fear that the low temp repair industry could fall like the appliance cheaper to replace them? Okay? So i'm gon na cover that real, quick before i get into my rant topic.

So ryan, so, basically he's asking do i think that the cheap refrigerators are bringing down the rest of the industry? And, yes, i do okay, so let me put it this way: um in the mid 90s to the early 2000s. True manufacturing was the cheapest refrigerator out there. Okay, their quality was subpar. It was a pain in the butt to work on them.

They have stepped up their quality tenfold. But okay, i blame in a way true refrigeration for bringing down the market, because the cheap, uh korean brands and different things like that weren't coming into the market. Yet okay, so you had true refrigeration, which again they're much better than they were, but they were cheap for a while and they brought down the market. The major competitors like charleston at the time beverage air charleston was the big one.

Okay, but in order to keep up this is my opinion, also guys, okay, but in order to keep up with true manufacturing beverage air charleston, all those guys had to perlick um or not per like beverage, air charleston there's another one. I can't think of right now too, but anyways they had to bring their quality down because they had to keep up with the pricing right because true was just killing the market with all their refrigerators. Now, i'm, i would imagine that true had some problems, because uh their quality has been increased 10 times. I mean it's amazing how nice their regions are now, but for a while they were really really cheap.

Okay, so with the new refrigerators, the really cheap korean brands and different things like that for sure, they're bringing down the market and everybody's having to compete, they're having to cut corners, true manufacturing, still manufactures in the united states i'll give them something really good for that. So they manufacture their product in the united states, but i got ta say it's got, ta, be harder and harder for them to manufacture their product in the united states. These days, when you have all these low-cost budget refrigerators out there - and you know, i have uh restaurants - that don't want to spend any money these days - okay, they essentially just you know, you tell them that their region has got this problem and this problem - and they Say: okay, we'll just replace the whole thing and they and we we dump refrigerators that are seven years old in the trash, buy a new one, use it for five to seven years: dump it in the trash. That's just the cycle right now! Okay! So it's really sad that we're not able to repair these refrigerators anymore now as a contractor.

What makes it even harder for me is that all these refrigerators are coming with three-year parts and labor warranties, okay, so the the the customers getting rid of them at the five to seven year mark, usually near the five-year mark, okay and uh. I can't sell them anything on the refrigerator, so it comes with a three-year parts and labor with a five-year compressor warranty. So if the compressor fails within five years, uh in the first three years, they'll pay for the labor and the last two they pay for just the part. But it makes it hard because, as a contractor, i have to go out and just do warranty work right.

So that's just a struggle, but i can go off on a tangent about that one for days. So i definitely think that these low-cost korean manufactured piece of junk refrigerators out there, a tosa and whatever these other ones are yeah they're dragging down the industry, because everybody else has to lower their prices and lower their quality to keep up with those guys. Of course, you're always going to have a high-end refrigerator out there, but they're not going to survive as well. Charleston, in my opinion, used to be one of the best manufactured refrigerators out there they used to have when their refrigerators were manufactured in california.

They were real, stainless steel, they were in the 80s, they were the i mean we, i rebuilt many of those troll since from the 80s, they were so high quality right and then, even in the early 2000s, they had a very high quality with their g series. Stand-Up freezers, they were really really well built right, but now that same freezer has just gone down in quality, big time. Okay - and i blame it on all the cheap manufacturers and them having to keep up with them just to stay in business. So that's just my opinion.

There may not be a lot of fact behind that, but that's how i feel about that one um. So let me see, do you uh proceed? Do you need to watch the video when it posts or doesn't matter when you watch it christmas eve video? It does not matter when you watch it, you can watch it new year's eve. It's not going to make a difference. Okay, that's all that, i'm going to say i'm not going to say anything else, but it's not like you need to watch it and do anything once you watch it.

It'll totally make sense what has happened, but you do not need to watch it early. It's not a race, it's not a contest or anything like that. You just need to watch the video to see what it happens so no need to watch it first thing: you don't need to stop the presses or anything like that. You can get to it when you can get to it throughout the weekend.

You'll see it and it'll totally make sense to everybody. Okay, um, all right! Let me see what we got going on here. Um. I already answered that one.

I already answered that one. Okay, i'm gon na get to my topic that i wanted to cover. So i was talking with one of my service technicians today about situational awareness. Okay, so he called me and uh.

He went to a walk-in cooler service call! Let me let me explain this and i'm gon na explain my logic and where he went and then you guys can kind of see where i was kind of guiding him to okay. So we got a service call from the customer. They said that their walk-in cooler came in yesterday. They sent in a work request through an email and it said: hey our walking.

Cooler has been in the mid 40s for the last couple days. Can you send someone out on monday to check it out? Okay, so my service technician goes out there today and uh talks to the manager. The manager told him the same thing. It's just kind of been up in the 40s and he went on to the roof and he noticed two things number one uh before he did anything.

The condenser fan motor was not running and number two uh or no. I take that back. He had shut the unit off when he first went on the roof. Okay, then, when he turned it on, he noticed that the condenser fan motor was not working and he noticed that the sight glass was flashing, so he called me - and he said - hey.

I put some gas in the unit cleared up the sight glass, it wasn't iced up or anything like that. He was fine with that cleared up the glass, but he said the condenser fan motor wasn't working um and then he said he he didn't put service gauges on it or anything like that, and he said he spun the blade and boom it started running and it's Running fine right now, okay, so then he said i think we got a condenser fan motor going out uh and then we were kind of talking about where he could get the motor from so then my question started popping up, and i said okay so listening to What the customer told me they said that the walk-in cooler had been temping high, the last couple of days um. Then we walked up and we found a bad condenser fan motor okay. So what i had asked my tech was: are you sure that the condenser fan motor is bad and he said? Yes, it had voltage and i go okay, but before it was running he walked up and he spun the blade and then it started working i go.

Are you sure that the fan cycle control did not turn on at the exact moment that you spun the blade and he said? Well, i don't know - and i said okay - i know it's a weird coincidence, but what are the odds that you spun it right at the certain time that the fans, because this one does have a fan cycle, control that the fan cycle control turned on at the Exact same moment that you spun the blade and he's like. Well, i don't know how do i check that and i was like well, you got to put your gauges on it. You got to watch the system, operate, check it cut in and cut out, but the point that i'm trying to make and the point that i brought up to him and he understood it when i said it. I said before you start pushing before you start pulling before you start twisting turning spinning or anything like that, you need to do your best to look at the situation.

Think about what the customer said. I said in this situation. What my tech told me was they had a bad condenser fan motor and i said: okay, that's fine, it i'm sure it's bad, but i said i don't know that. That's the only problem because the customer said that it was only maintaining higher 40s, but it wasn't at 80 degrees right if we had a failed condenser fan motor, and that was the main problem the whole system would be down.

It would be shut off right on high pressure. Okay yeah. It has an auto reset pressure control, but it would still be really high in temp, not just in the 40s okay. So that's what i was trying to get across to him and he understood he's like.

Okay, yeah, that makes sense so long story short. We ended up having a condenser fan motor that was going bad. The run cap on it was failing, okay, so it may have been turning on and off. I don't know, but the whole conversation we were having was just the situational awareness.

You got to think about the service call. If, if the the condenser fan motor was the only problem right um, the temperature would be a lot higher than just barely in the 40s. You know the customer would have called on an emergency service call. Now.

The one thing i glossed over in the beginning was: he said it was low on charge too. He had to put two pounds of gas in it to clear the sight glass. There was no head pressure, control valve or anything like that, so we need to go back and try to find a refrigerant leak too. The refrigerant the low charge could have had something to do with it too, but you can't just assume that when you walk up boom, that's your problem.

Okay, you have to look at the big picture. You have to ask questions. You have to know the right questions to ask the customer so that way you can think about it and you have to listen to what the customer says too. When the customer says yeah, it's been, you know, kind of maintaining a little bit and the high.

You know right in the 40s a little bit high, but not enough for us to call you on an emergency when you get there. You can't just assume that this condenser fan motor issue is the only thing because maybe there's more going on. Okay, that's all! I just kind of want to cover that because that's something i've been running into a little bit more is, is you know, people not necessarily thinking about everything, calling me and saying: hey. We got a temperature controller, that's failed! Why what's wrong with it? What's it doing? Those are the questions that i ask, and sometimes people get upset with me when i quiz them like.

Why do you think the the temperature controller is bad? Well, because it's not maintaining the right temperatures in the box? Okay, what type of temperature controller is it? Well, i don't know see a long. You got to look into it if it's a region, cooler and it's a coil sensing temperature controller. You got to stop and think what makes that temperature controller turn on and off, and it's very common for people to misdiagnose a failed temperature controller on a coil sensing setup. Okay, so it has an evaporator coil.

The temperature controller's capillary tube goes into the evaporator coil. It's usually a constant cutting control if you have low charge on a system that has a coil sensing temperature controller that can make you think that you have a bad temp control right. So those are things you have to think about. You can't just diagnose without going through everything.

The one thing i ask my guys all the time. Okay, once you've gone past, the it's not working, it's not getting cold enough. Did you put your service gauges on it? Did you put both sides on there? There's nothing! More that sends me through the roof than someone telling me yeah the low side's at this. Well, what's your high side pressure, i don't know, there's no tap or i didn't put it on there.

You can't tell me anything with just a low side pressure probe or with just a high side pressure probe. We need to know the entire system minimum high side low side. Then we know what our evaporator temp, what our condensing temp is. Okay, um we've been, you know, really having to uh quiz a lot of people, and you know just say: hey, you know what.

Why do you think it failed? Explain to me your logic, what kind of troubleshooting steps that you go through and then i quiz and then we talk and have a conversation in hopes that someone's gon na learn. You know and look at the big picture next time. Okay, so i am not a person that likes to go in and just you know, it's got a bad temp control, because it's not getting cold enough. No, because here's how that situation works, we order the temperature controller.

It takes two days to get it. We get it here. We go back to the job site we put in the temp control, it still doesn't work huh, oh man, you know what it has a leaking evaporative coil. Four days later we ordered an evaporator, a cap tube and a dryer, and we fix the problem.

But i don't like to do that. Okay, we go in and we diagnose and figure everything out. Another thing that a lot of people don't realize, and even i don't do this because most of the time i can kind of work my way through it, true manufacturing, which is a very common one of the the biggest global refrigerators out there right in the unit Or probably the biggest in the u.s manufacturer, they actually have a method of diagnosing a failed coil sensing temperature controller. By disconnecting the evaporator fan motor, putting a thermometer inside the evaporator coil and watching what temperature it turns on and off at did you know that you go to go to true manufacturing's website and actually download a service manual that explains in detail how to diagnose a Failed temperature controller: it's actually a trip, it's really easy to do and in fact, i'm actually going to show you right now, because i was blown away when i found this so we're going to go ahead and do a screen share real quick.

Let's see if i can do this without sharing any sensitive information, i think i can do this uh yeah there's nothing bad on there. I'm gon na transition over real, quick, so we're gon na go to true manufacturing nope. That's not it t-r-u-e-m-g dot com. There! You go commercial refrigerators, we're gon na, go to support, we're going to go to resource library, we're going to go to technical service manuals and look at right here, guys technical service manuals table of contents, how to change doors and gaskets.

You wouldn't think you need that, but you actually do and then look down here: refrigeration, temperature, controller temperature, controller replacement, repair, look at this, you go in here, it downloads a pdf, and it tells you exactly what the part numbers are. What the cut in and cut out is and then, if you go down here, look at this you take out the fan motor, take off the fan, blade disconnect it or actually you can just you can leave the evaporator fan motor running just take off the blade. Put your thermometer inside of it and it tells you how to diagnose a failed temperature controller. Tells you all the different steps, guys there's so much more.

All you guys have to do is ask the google the google will give you so much information that you don't even know that you want. Google has so much information on there guys true manufacturing. Most of the manufacturers have great resources online and that's all you need to do is go to their website and look around and you could find all kinds of cool stuff, you're working on a full ice machine, go to fullet's website, download the information there's so much Information out there guys you just need to look for it and know how to ask the google and usually the google, can answer. Okay, there's lots of great resources on how to investigate and look into things.

You guys. Definitely just just go and look. That's all you need to do. Okay, when you're bored just search something on your phone go on youtube.

You know, there's a million different videos on how to diagnose a failed temperature controller, but all you need to do is you can watch one, and you say you know what this guy doesn't quite know what he sounds. There knows what he's talking about. You know so move on to the next one. There's so much information out there for everybody, okay, so situational awareness goes a long way.

I don't know if that's the right way to describe that, but listening looking feeling don't start twisting and pulling and resetting and different things. You know when i walk up, i don't like to just hit high pressure controls. I like to look at everything. First spin, the fan motor check this check that i don't just reset breakers.

I try to test for direct shorts to ground before you know you, you really try to unravel something because there's nothing worse than going in and fixing a problem without realizing that you fixed it or you know you know what i'm saying: um there's some ice machine Manufacturers, uh hoshizaki for one okay, uh hoshizaki ice machines have a digital circuit board that has a safety limit on it. That starts beeping when there's a problem, and you have to listen to how many times that safety limit beeps, usually three or four times somewhere in there two times whatever it is one time each one does something different, but if, if you get up in there and You reset that safety, there's no history of that safety anymore. It's gone okay, so once the customer has learned how to reset a safety on a hoshizaki machine, be ready to spend a lot of time trying to find problems because half the time people say: oh, it was beeping. Well how many times was it beeping? Oh, i don't know like nine times.

There is no nine beep safety limit. Okay before you go up and push things, listen think write it down. I love having a notepad in front of me and writing down technical support issues. You know - or this is how many times it was beeping - this is what's going on the flash codes different things like that, because i'm super forgetful um.

I try to do that and i double triple check myself. If it starts beeping three times i listen again. One two three one: two three: some manufacturers, such as york, if you're working on a york package unit right on the roof and it has a led board on it. Um it'll start flashing at you, but it flashes on one set of leds and then it flashes on another set and they're different codes that equal different things.

So you have to pay attention and understand how things work before you really start. Jumping into them be cautious about resetting things, carrier package units, the older ones. You don't go up and turn the power off and turn it back on, because you just reset all the safeties and now you got to wait and try to see it do whatever it was going to do again. Okay, you got to investigate before you reset things all right off on that rant right now.

Let me see what else we got in here: um dinah or whatever go over restrictions in my system, and what do you do to get them out? What do you mean by restrictions in the system? Okay, i'm gon na assume, let's just talk about a refrigerator right now that has a restriction in it. Okay, um we're talking about a refrigeration restriction in a capillary tube system. On a true, let's just say, a true stand-up bottle cooler that has r134a refrigerant, okay, first off what you need to understand, why is it that we have plugged up capillary tubes on uh, reach-in refrigerators, so much that uh have 134a in them? Okay, uh? Usually, it's not a it's, not a cheap manufacturer, guys. Okay, i did this too.

For the longest time i used to work on a lot of kyrak units that had 134a cap tubes and we were plugging up cap tubes, all the time changing cap tubes and in the beginning i would just change the cap to the dryer and move on and Then you know a couple months later it plug up again: it's like oh man, you change it again and again and again, and then you start to realize: okay, there's a variable here that i'm not seeing okay, why do the capillary tubes plug up majority of the Time, capillary tubes plug up because the customer is not properly maintaining their equipment. Okay, if they're not maintaining their equipment properly, what happens the condensers get plugged up with grease and dirt? The system starts to overheat with polyester oil and 134a there's some kind of a weird ass thing that goes on inside there and what actually starts to happen is the oil starts to cook. Okay, the easiest way, i could explain it, this isn't the the you know. What really happens but think of bacon grease when it cools okay, same thing happens: it's it's something like that.

The oil inside the system just gets so hot that it starts to create grime and crap and remember. Poe oil is great at being a solvent right, as it goes through the system. It does a really good job of cleaning everything off. So imagine too that the manufacturer - maybe didn't you know, follow all proper procedures from the beginning, but then, on top of that the oil is getting cooked and it starts running through the system getting plugged up in the capillary tube and it plugs them up.

So with that being said, when i go in there and change the capillary tubes on it in the dryer and then a couple months later, i have to change it again and then a couple months later, you have to change it again. We need to stop and think what's the best method here, the best way, if you have a plugged up capillary tube and it's a 134a system, do you want to know what it is change out, the entire condensing unit? That's the best method. You can do flush. The system more than likely it's going to have an accumulator on it, take that accumulator out and replace it.

Okay, you can try flushing it, but on something so small, it's a pain in the butt. Did you guys know true manufacturing? If you have a plugged up capillary tube uh, if you have a failed compressor, did you know that true manufacturing will give you an entire condensing unit because they have realized, at least they used to call them and ask them next time you have a plugged up Cap tube tell them, you know what i got a plugged up cap tube. I believe this oil is contaminated. Can you send me out a new condenser unit, most of the time, at least when i used to do them a lot they'll.

Send you a whole condensing unit because they realize that's the only way to eliminate that i'm assuming while it's under warranty. Okay, obviously you got ta, call them and ask them about that, but seriously. If you have a failed compressor on a true refrigerator and you call them and say, and it's under warranty, you can get an entire condensing unit. Instead of just the compressor they'll.

Send you the whole unit right. I got to give true props for that one. They do a great job with that, but they realize that you're better off changing the whole condensing unit. If you have a plugged up cap tube now they're not going to keep doing that, especially if the customer's not maintaining the equipment right, but that's what goes on.

So how do we diagnose a restriction on a capillary tube system like a 134a system? Well, what you're going to do is you're going to put your service gauges on there you're going to look at the way the unit's operating you're going to look at your evaporator temperature. You can look at your sub cooling, but i'm going to tell you right now. True manufacturing, none of the major manufacturers publish sub cooling or superheat data for any of their regions. Okay, they're, going to just basically tell you these are the operating pressures of what it should be um.

You know, that's that's how they operate, and so, if it's not within those parameters, they basically tell you that you're going to have a restriction or something going on inside there. You can, of course, kind of do your own math superheating sub coin, but the hard thing when it comes to these regions that you don't understand. As far as looking at system vitals like superheat and sub cooling, on the reach and coolers, is that um they uh. They often will have uh like a hot gas condensate heater okay, so some of these manufacturers will have the discharge line coming out of the compressor it'll go into a drain pan for the evaporator, because they're completely self-contained units.

This typically isn't untrue, but like on charleston does this: they have a refrigeration line that goes through the hot gas condensate pan first and then it goes to the condenser okay. When that happens, it gets really confusing on how to use superheating sub cooling, because is it? Are you meant to check the superheat and sub cooling numbers when there's water in the pan or when it's dry? Okay, because that's going to affect everything? Another thing you have to understand too a lot of these manufacturers that have capillary tubes in order to get the best efficiency out of the system. They'll, take the capillary tube and they'll, wrap it around the suction line and solder it on there and then go to the evaporator coil okay. So when you go to replace that, you have just taken away the efficiency and what number were you supposed to use for sub cooling or superheat for that matter? Uh, when the capillary tube was running around the the suction line, getting sub cooled essentially, okay, it throws everything off.

So when it comes to these reaching coolers superheating subcoins not gon na get you very far other than to tell you like hey. I've got no sub cooling or hey. I've got massively high sub cooling, um or i've got extremely low super, but as far as dialing in a normally operating system, it's going to be hard to want to use those numbers so you're just going to have to from experience. Look at the system pressures watch.

It operate, you know it just takes time to get used to them, so that isn't a great way to diagnose those regions, but that's basically the methods that are out there. So hopefully that answers - i don't even know if that was part of your question, but hopefully that answers a little bit there um. Let me see uh merry christmas to everybody. That's in here.

Thank you guys, uh. Was there any rack or package units in my area that had one compressor replaced multiple times in the past um i you know, i don't know but um the only guys. Let me see what else we got in here. Uh dallas fan ralph's in here guys my buddy ralph, hey for those that just came in.

I had opened this earlier, so i haven't pulled the laser paper off yet, but this is a stainless steel plaque that uh, rich and ike sent to me they're in the chat right now as a early. Congratulations for a hundred thousand subscribers! Now, i'm not quite quite there yet i'm like two thousand twenty five hundred, something like that shy of the hundred thousand subscribers, but what i'm gon na do. Um, i'm gon na start pulling this paper off. Maybe i'll do a little bit while we're doing this and then we'll put it up in the back of the office somewhere, but it's a really cool.

This is a stainless steel um plaque. Basically, you guys can see the metal color right there. So it'll look super awesome when i get it all pulled off, so thanks again guys that was really cool all right. Let me see what else we got going on in here.

What am i missing? Not missing anything? Okay, cool um. Let me look at the chat and see if i'm missing anything in there. Real, quick, um, okay, so cp boy 100 is asking: if a new technician could go straight into working on large commercial building systems, or would i recommend them start on small residential first? You know, i said something the other day i think i might have been on the overtime show, and i probably i i've been thinking about that after no a technician can certainly go into the commercial side. First, i had mentioned something like hey start on the residential side, or i said that somewhere and i didn't mean that for everybody um, it was answering the certain specific person's question.

I don't remember where it was, but yes, a text certainly could go directly into the commercial side if he has a company, that's willing to train him now. I will warn you right now, all of you guys, especially if you're going into school you're in school or you just graduated school. There is not a single school out there. That is going to give you everything.

You need to be a full-fledged technician. When you get out of school, you have to go through an apprenticeship of some sort. Okay, so understand that don't let any of those especially the for-profit schools mislead you into thinking that you are going to be a full-fledged service. Tech when you get out of school, it's kind of funny, because i get resumes quite often and you can tell that they were help.

You know the resumes were written by the school because, when, when technicians that are out of school they'll send me a resume and on the resume it says you can read like hey, they just got out of school, but it says that they have experience diagnosing this. They have experience diagnosing that they have experience braising. They know how to do this, they have experience and it's like they don't have experience. They.

They took an 18 week or you know, 15, whatever they took uh, you know no more than six month class where they had a little bit of experience, wiring and brazing and different things. It's don't listen to a trade school that tells you to put the experience that you had in that trade school as working experience. In what i mean by you know, you don't have experience embracing if you were just doing it in trade, school, okay and there's nothing wrong with saying you were in trade school. We as business owners, understand now it's okay to say things that you covered in trade school, but i find it silly when i get a resume that says, i'm proficient in doing this this this this no they're, not they have a limited amount of training, while they Were in trade school doing that stuff, but they are not experienced technicians coming out.

Okay, so again nothing against people coming out of trade school. I understand what the experience you're going to have coming out of trade school, but don't let a trade school fool you into thinking that you're going straight in as a service technician, that's bs, okay, and if, if they're trying to do that and a company lets you Do that then you're being set up for failure? Okay, everybody knows that someone at a trade school is still gon na have to shadow someone and work with someone and learn properly. Okay, uh be very, very cautious. I mean there might be a few, a very small percentage of people that are proficient enough coming out of trade school.

I even had people email me and say i just got my epa certification. I just finished trade school, i'm starting my own business. I mean come on. You absolutely have no business starting your own business.

Coming out of trade school. It's not going to happen. You've been misled. You've been fed a back, a bag of rocks.

I mean that's ridiculous. Okay, anyways, i'm getting negative right now. So, let's get back to the chat, see what i'm missing um. Can i please do more live stream repairs? You know it's.

It's really hard! Uh the live stream repairs. Sometimes they come. Sometimes they don't so on a video a while back. You saw that a refrigerant dryer was super dirty.

What do i think happened to a refrigerant, dryer, refrigerant dryers, get dirty when people don't follow proper practices and or there's massive system failures. Compressors failed burnouts different things like that, so a system dryer a filter dryer, is simply there to clean the system up and prevent that contamination from getting into the expansion valve the evaporator and or the compressor okay as much as possible. But it can only do so much if you have catastrophic system failures, then yeah, then it plugs everything up and you have to put more dryers on the system to try to clean it back up properly. There's there's a whole side of the industry in properly cleaning systems.

After massive contaminations, that's an art in itself. Have i ever worked on water cooled condensers, anything straight about strange about that. Yeah i've worked on quite a few water cooled condensers. I used to do a hospital service work for a hospital that had all water cooled, refrigeration, equipment for their walk-ins and lots of water source, heat pumps and different things like that.

The key with water cooled is proper, uh, preventative maintenance and proper water treatment. Okay now the particular hospital that i used to work for all the water cooled, refrigeration, equipment for the walk-ins and everything was in the basement level and they had an open loop system. So they had a cooling tower outside and then there was a lot of mud in the system because of that they didn't have good treatment coming in and then all the stuff would make its way down into the basement where the refrigeration equipment was, and they would Just plug up stuff like crazy, it was so bad that the the engineers at the hospital i would get regular service calls where i would go out and be like yeah. The server room, air conditioner, is not working or the the walk-in cooler's, not working and i'd go over there and you have to have strainers on your water cooled systems right, so there'd be a strainer there and i'd open up the strainer to pull the screen and There's no screen in there and i'm like what the heck so i'd, go down to engineering and be like dude, the screen's missing out of the strainer, oh yeah, that thing plugs up like every week, so we just took the screen out come on for real.

I can't tell you how many times i was told: oh yeah, that strainer plugs up so much that we just took the screen out good grief. So then don't get me wrong. I mean it was great. I got to bill him for all kinds of time.

I would spend two days, you know turning a system on and off flushing it out, cleaning it putting proper strainer screens back in you know, and yes it just they had to clean their strainer screens. You know every other week. Basically, that's how dirty their system was and that's because they had a open loop system, basically with a uh, evaporative cooling tower outside um and they weren't circulating glycol. They were circulating, treated water, but it was basically pulling up all the dirt and crap from outside.

At the cooling tower and making it back into the system - and it was a mess so proper system, water or the fluid treatment and proper preventative maintenance is the biggest thing water cooled systems are actually super efficient and if they're maintained and set up properly they'll last For years and years to come, if you can, i would highly suggest - and unfortunately this is becoming a dying type of equipment, but shell and tube condensers are the best with water cooled equipment. Unfortunately, because of efficiency and space limitations and everything everybody is going to coaxial. Condensers and those basically are the it looks like a giant tube and like a circular round, little stack of them and that's your condenser. Those things are so difficult to clean.

The reason why i like shell and tube condensers on the old school systems is because you could punch the tubes. You basically pull the end bells off of the condenser. I would this was way before i did youtube, so it'd be really cool. If i had videos of this, but you pull the end bells off the condenser and you basically would run a brush through there, i never had any of the fancy mechanical equipment, good ways or anything like that, but i would just run brushes.

I'd actually go. Get a special cleaning brush and you're not supposed to do this, but what i would do is put it on my drill and go super slow. You can get um nylon brushes too and put them on your drill and just run them through the tubes and you. If you did it regularly, you can clean them.

I actually used to set up for the coaxial units. What i used to do is i had this giant rubbermaid container, a big heavy duty, rubbermaid container and i went and bought a submersible sump pump, a large submersible sump pump and i basically made a pump system with the submersible sump pump. I ran um, basically pvc pipe with uh, cleanouts and different things like that, and we would take a bunch of 50-foot hoses and we'd set up the the pump system right this. It was a flush system because you could buy these too, but i just made my own made a flush system and you could basically shut off the the incoming water right from the tower and you could just hook up to the condenser that needed to be cleaned And you could just recirculate the water and then you would put like red lime in there and just let it run for an hour or something like that and flush the system out, and then we would have a drain and everything so man.

I wish i had videos, because that was fun. I really liked doing that it was. It was a lot of like very meticulous work because you were working in a hospital and you had to make sure everything was clean. You know clean everything.

It was just a whole different way of working, but water cooled is a lot of fun to work on it's it's. It's uh hard work, though, because i mean you got to do a lot of things right. You know you got to you really got to get in there. You got to have some big wrenches too, when you're pulling strainers and ball valves and different things like that, but anyways that's a whole thing all right uh do.

I think ernesto asked me a question about uv lights and it just disappeared. I don't know where it went. Um. Let me see if i can find it again ernesto.

I don't. I missed the question, but i saw uv lights and i think you were asking me: do i think uv lights will kill covet or something like that or become more popular, i'm just going to kind of go on my little rant about this, so uv lights. I know that they are proven to kill things. The the trick with uv lights, to my understanding is getting um the fluid to slow down enough to be sanitized and cleansed properly.

And when i say fluid, i mean air right because majority of the time we're going to be using air, which is a fluid it's going to slow down. You got to slow down the air enough to be exposed properly to the uv light to sanitize the air properly. Okay, that's why a lot of the manufacturers of the residential style, uv lights. They want you to put them facing the evaporator coil to try to kill bacteria sean schwab.

Thank you, so very much for that super chat. Merry christmas bud. That was awesome. I really really appreciate that.

Okay, please guys hit the thumbs up button like shawn had asked. That's that'd be really cool if you could so um. That's the big trick that i've read about with uv lights. Is you have to make sure that they're big enough to properly clean and sanitize or kill things in the air um? You know so really i mean my research for a particular customer that wanted uv lights was.

You would have to do some serious serious bank systems of uv lights to properly clean the air in a system that was moving even 5000 cfm's of air. I mean you know, because the odds are that that 5000 cfm's of air is not always going to hit that uv light, so you'd have to have a bank of it. You know to make sure that that majority of the air would actually make it to that and be properly sanitized. So again, sorry, if i missed your question ernesto, hopefully i answered that just rust, bipolar ionization.

I also installed a bunch of bipolar ionizers. I got to be honest with you guys. I still don't understand the voodoo magic be put behind bipolar ionizers, but i've read some interesting studies. Uh there was a third party study.

I don't know out of some country that i read in one of the indoor comfort magazine or something like that talking about bipolar ionization, but there's so much voodoo magic in that that i just don't understand it. So many big words um, i'm a dumb knuckle. Buster right, air filter gets dirty. That means it's cleaning the air.

I can see it when it comes to a bipolar, ionizer, it's hard for me to understand that magic, that's happening there. The one thing i will say is: i have a bunch of those iwave bipolar ionizers, because i installed a bunch of them and uh. When i was talking to our buddy big clive on the hvc overtime channel, he was saying that they have to produce some sort of uh of ozone and i was like well if you read the installation instructions for the the bipolar ionizers made by gps global plasma Solutions and then remarketed by new calgon. If you read their information, it says it doesn't create ozone.

But what's interesting is even on the eye waves, you can smell what smells to be like a bleach-like substance, and might i've been told that that's ozone? So it's really interesting that they say it doesn't create ozone, but you can still smell that bleach-like smell across the little ionizer brushes or whatever. So i don't know, i don't know what i believe in any of this. I'm still standing firm from day one. I believe clean fresh air is going to be a big part of this.

I think that if people start or restaurants and businesses and everything like that start letting us bring in fresh clean air into the building, so that means bigger air conditioning systems, because we're gon na have to bring in more outside air. That's gon na have to be tempered and conditioned right in the midwest and back east. It's super cold right now, so we can't be bringing in a bunch of outside air without heating. It up first same thing out here in southern california, in the summertime we can't be bringing in 100 outside air, because it's 110 120 degrees outside.

So i feel, like we'd, be much better off bringing in fresh air, but our energy costs are going to go up and unfortunately, nobody wants to spend more energy and in fact, they're making all kinds of legislation to make sure that people are dropping their energy costs And all that crap, so i'm a firm believer in fresh, clean outside air, proper air filters. Um, you know cleaning things properly. That kind of thing that's my method of doing that um. But out of curiosity guys, i did install one of those eye waves in my house just because i wanted to see if i noticed any difference, i honestly don't notice the difference, but will i ever notice it? I don't know you know.

I will say that i also installed an eye wave in my garage because we have cats and it smells like cat piss out there all the time and it pisses me off uh. So we have a ceiling fan running 24, 7, moving a lot of air uh in my um, my garage, and so i put the eye wave underneath the ceiling fan that's constantly running and it still smells like cat piss in my garage. So i don't know uh jay. Thank you so very much for that super chat man.

That is awesome. So what are my thoughts if any on the nest or ecobee thermostats hey? I think that they're great for the people that want to use them.