HVACR Videos Q and A livestream originally aired 05/04/20 @ 5:PM (west coast time) where we will discuss my most recent uploads and answer questions from the Chat, YouTube comments, and email’s.
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Ah, it's time to chill out and get ready for a mediocre. Qa 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 yo. Hopefully you guys are doing good, and hopefully I corrected my audio this time and it's not clipping like crazy.

So let me know how you guys are how it's coming across over there we're doing cool over here it's starting to warm up a little bit. We kind of have gotten rid of the cooler weather, it's still cool in the evenings, but you know it's getting warmer during the day. So do me a favor guys, put your questions in caps lock and we'll definitely try to get to them. I've got a couple things on my list of stuff to talk about as usual, and I definitely want to try to get to the stuff in the chat and see what you guys got to say kind of stuff you have going on.

So hopefully you guys got your apple juice ready, let's see if we can work through this stuff. This week is definitely Benny uh, I guess a more stressful week for me, so I had a overtime service call. Why had a like? A few service calls come in last week, three or four. I think nothing crazy.

You know we're still kind of slow ish, but I had a walk-in cooler go down on Friday and I was able to fix that and then I had an emergency service calling a walk-in freezer on Saturday, this one sucked. So it's been slow lately, you know, I'm the only person working, all my guys are laid off and my wife and I were like trying to get our kids to go. Do something and my kids of all things we're like? No, we don't want to go out. You know I have a 13 year old and a 10 year old daughter, but they were like no.

We want to stay home and me and my wife are like we want to go somewhere, hey Joe thanks for becoming a channel supporter, but I really really appreciate that. Okay, so yeah, my wife and I wanted to go somewhere and we kind of like decided. We were gon na go to our local mountains cuz. They had opened up some of the trails up there, so we were kind of getting the car ready and stuff, and then I got an emergency service calling a walk-in freezer.

That's how it works right. I kind of forgot about being on call, and even my wife said that she's like I totally forgot that you know you could get service calls and stuff, and it's just funny how that works so and it turned into a disaster. So I think I got the call one in the afternoon by the time I got there and work through the diagnostic process. I figured out that we had a and it was a long story I'll make a video about it eventually, but by three or four I figured out that we had a bad compressor and then I had to try to open up a supply house and locate all The people, the compressor, was only available 40 miles away it just basically my call started at 1:00 p.m.

and I left at 5:00 a.m. the next day. No, I got home by 5:00 a.m. the next day, so it was a long night, another one of those walk-in freezer late night, compressor jobs that turned into a jazz multitude of things, and actually I have to go back to that call tomorrow.
So still got ta. Go do some other tidy up stuff because it was a grounded compressor. The oil on startup already looked like crap and smelled like crap, so I'm probably gon na go back and do an oil change and just change the dryer again. It's just a one of those calls that just really really eats at you and just kind of eats you alive.

You know, but that stuff happens in this trade and I guess we should be thankful, especially in times like this. I should be super thankful that I had work and that I had the opportunity to do that. Call and truly I am thankful, but on this other side, I'm a normal human being and man that call just sucked ass. It really did it just really sucked and that's part of refrigeration guys.

I know you supermarket guys. I don't know if too many Supermarket guys watching my videos, but you know the supermarket guys. They know that kind of stuff all too well us restaurant guys. You know, I would say you know when things are going good, I might get one late night.

Emergency service call every three months. You know like super late night, you know, but that's it and then they, you know the last time. I had a call like this that turned into an all-night, compressor change out was probably three or four years ago, so it doesn't happen very much, but when it does, it hits hard and this one just ate me alive, and then you know of all things. This is a difficult restaurant.

I don't have any support getting it. You know I mean I was a gon na. Do it all, but I mean just getting everything up on the roof after not working for a while. You know my I'm still sore and it's you know Monday, so yeah that that called beat me up and then you know Sunday morning.

You know I got to bed at 5:00 and then 5:30, something like that and then you know I woke up at 10:00 a.m. and it's like. Okay, I can't sleep anymore. You know cuz my family.

They were doing the best they could, but I mean you know. I could hear them, I could hear cabinets I could hear you know see sunlight coming in through the drapes, like it's just life and that's the kind of stuff that hits us as a refrigeration text, and we have to remember that that you know I was kind Of reflecting on that today, and it's just like man that one just ate me alive, you know, but it happens, and you know like I said I guess I'm just thankful that I have the work and the opportunity right so really really appreciate everybody. Let me see. Do me a favor guys if I'm missing something, do me a favor and send me an email, hvac our videos at gmail.com, i see that joe hvac r north told someone to email me.

Some questions feel free, okay, i'll try to answer questions. If i don't get to them before, i forget, it was brought to my attention that spore lands gon na be having a webinar, and i have the the nightbot. I mean the stream labs moderator is gon na post a link to, but we they have a webinar coming up on the 14th of May on electronic expansion valves. And if I guys, if, if I haven't convinced you yet check out these spore land webinars, they are awesome, okay, the two guys that do it.
Forgive me, I do not remember their names, but they have a great like dialog, going between the two of them and there's just something that works in the way that they talk to each other and stuff, and it just it really makes it interesting. So even even I've listened to some of their webinars on. You know some of the supermarket valves and different things, and they still learn knowledge even from stuff that it's like. I don't have I'll never work on that particular supermarket belt, but I gained knowledge just from listening to these webinars, so I'm gon na post a link, real quick and my moderator bot is gon na post it too so, but check out that webinar register.

Now it's on the 14th of May it'll be coming up and it's on electronic expansion valves so definitely check it out. Hey Scott! Thank you very much man. I really appreciate that suit for Chapman and that's awesome dude, you guys. The super chats are awesome.

I really do appreciate them. They are not expected. I realize that everybody is going through crazy times right now. Okay, much appreciate it.

I said this on the last stream. I'll say it again. If you guys want to support this channel, like you, don't have to give me your money. Okay, I appreciate it, but you don't have to you, could do some simple things like sharing my YouTube videos just share them just help to grow.

The channel leave comments. Okay, the biggest thing I know this is difficult, but watch through the commercials. Okay, let YouTube pay me just watch through the commercials. You know that that would definitely help the channel down in the show notes of each video is an affiliate link.

Click those affiliate links. If you're gon na buy tools from true tech tools, click on my affiliate link, it doesn't cost you anything extra and I get a small commission from it. Okay, you can also use my offer code, big picture. One word and that'll get you eight percent off of your order.

Okay, but those are ways that you guys can support it. Of course, I'm always willing to accept any financial contributions that you guys want to make through patreon or YouTube memberships, or things like that. Super chats, but you don't have to do that. Okay, I don't make these videos.

For that reason, I really do like to hear myself talk. Know I like to share the little bit of knowledge that I have and I'm truthful about that. Okay, guys, I am a human person. I make mistakes all the time, so I posted like a little Facebook comment, clip or something like that shown some.
What I thought to be nitrogen, coming out of the oil of a compressor and while I still do agree that nitrogen might be part of the cause, I've been talking to a couple people couple friends, my buddy Ulysses Palacios. I believe, that's how you say your last name Ulysses. Hopefully I didn't butcher it sent me a video and we've been kind of having a dialogue back and forth, and I may be a little incorrect about the nitrogen coming out of the oil. So with that being said, I am going to purchase a vacuum chamber because my buddy Ulysses sent me a video that he made with a vacuum chamber and I'm gon na be purchasing a vacuum chamber.

So I can do some experiments and test vacuuming down oil and some things like that, so I'm gon na be doing that and hopefully we'll have some video material coming from that soon. But I am NOT a perfect technician. Everything I say is not the truth. So make sure you guys understand that I'm just a normal person like you guys that has a form okay, sometimes I'm a spout, some crap that doesn't even make sense all right.

I try to be as truthful as much as possible, but sometimes I'm incorrect and there's a very good possibility that I may be incorrect about this nitrogen and the oil thing. I'm gon na do some research we're gon na figure it out. Okay, so just keep that in mind just because you heard it from some idiot on YouTube. Okay, right, let's see, let me Joe thank you very much man.

I really appreciate that super chat again much appreciated, but you don't have to okay. I saw some a comment up here. Have I have any advice for guy okay, so 21 misfit, you said: do I have any advice for guys in school to be a service tech like yourself great question, okay, so new guys that are wanting to come into the trade wan na? You know you're in trade school great, even if you're, not in trade school. Alright, this is a trade that has great potential for you guys.

There is a lot of potential to earn great money in this trade, but there's a caveat, but you have to bust your ass. It's not an easy trade. Ok right when I started this stream, I said I had an emergency service call that started at 1:00 p.m. in the afternoon, and I got home at 5:00 a.m.

the next morning that sucks I'm sorry, but it does. Okay, it sucks life happens. Ok, but it's a very good trade, alright and you can earn good money, you can earn your money and it's awesome. What what advice do I have for the new guys coming into the trade? Okay, first off keep your mouth shut and what I mean by that is: there's no wind to speak your mind, all right, there's a great question and I'm gon na cover this.

I'm gon na kind of loop, a bunch of stuff into this, because I had a question from someone who's an apprentice and he had some questions about the company that he's working for he's working for a big mechanical company. Ok and he notices that they're not doing things right. He notices that they're not pulling vacuums right that they're, not brazing with nitrogen, that they're laying the solder on the braze joints too soon. They're they're melting, the solder on the braze joint stuff, like that.
Ok, first off, nobody is perfect right. I screw stuff up every day. I just because you see me preaching about proper vacuum practices in my videos, guys I'm not perfect. Alright, there's a time and place for perfection and in refrigeration.

I hate to say this, but a lot of times, there's no time for perfection in refrigeration, because stuff is spoiling. They need it fixed now. If that means that there's gon na be some non-condensibles in the system, then so be it. Ok, we do our best to try to follow proper refrigeration practices, to braise with nitrogen, to pull a perfect vacuum and all that stuff, but guess what guys? It's not always gon na happen.

Ok, so to the gentleman that emailed me asking about the issues that he sees at the company he's working at the best advice I can give to. You is keep your mouth shut bite your tongue learn as much as you can and then about two years from now make an educated decision on whether or not you think it's really worth it to leave that company and move on, or you can two years from Now, once you've graduated from being an apprentice I'm assuming by then you can try to adopt more proper refrigeration practices yourself, ok, but understand that sometimes the customer doesn't want to pay for everything to be done correctly by the book. Sometimes the customers on your. But now I show in my videos that I try to follow as many of the proper practices as possible.

Ok, but sometimes I have to convince my customers that hey why you know they like. Why did this take so long? Well, because I got ta, do things right well, the lot the next guy wants to do it for less, and you know so sometimes they're not gon na understand that so you just got to do the best that you can sometimes ok. You can't always be perfect. So I don't mean to sound rude until the apprentice that your opinion doesn't matter.

It does, but I'm just saying, there's a time and place to ask questions and to bring up things now. I don't want you to keep your mouth shut and never say anything but talk to the person you're working with you know when the time is right on your way home when you're riding in the vehicle with him ask him say: hey bud. You know when I was in school, I'm kind of confused, because you know the book says that we want to pull a vacuum too. You know 200 microns, whatever it is right and we want to watch a decay test and all this different stuff and then say you know what.

But I realize that we're under such a rush, sometimes that we can't do that. So why is that? You know don't make it sound like you're coming down on him. Just ask him genuine questions and let him inform you he may just say you know why dude we don't got time for that. Crap, okay, then so be it.
Then you can choose to make that time when you're a service technician but be prepared for the repercussions of that, because sometimes people don't want to pay for that stuff. Okay, so I don't want to seem, like some Purvis type, perfect technician that knows everything and does everything right right, because I'm not okay, Elam Silva, you said nitrogen will get in the oil, but it's the first thing to come out and I do believe that that's True but we'll see, I'm gon na do some some some experimentation. Okay, so hopefully I answered the guy's question the apprentice again, I don't mean to come off rude or sound rude, but just you know as a new guy coming in just because you were in school. You know, and the book said to do it this way.

First off okay, so let me give you this example, so I kind of have some problems with some institutions right now, as far as school goes okay, so I know that there's some people that that sit up on a high horse and they think their stuff doesn't Stink and they're a teacher and different things like that. Okay, I would argue that most teachers don't even know how to pull a proper vacuum. Now, I'm not saying that I pull a proper vacuum all the time. In fact, in one of my videos I just talked about pulling a vacuum through a manifold, and we all know that I'm pulling a vacuum through a manifold is taboo: it's not correct, but you got to do what you got to do, sometimes, okay, so with that Being said, I have a hard time with a teacher that sits in the classroom and preaches about how you got to do this and how you got to do that and how you know.

You got to follow all this fancy rules and all this different stuff. But then they don't even know how to do things properly themselves, and when I say you know it it's, I think we need to have some more transparency here. I think that teachers need to be a little bit less worried about being politically correct and start talking more and showing more of real-world examples. I think they need to show more real-world repairs and say look.

This is what I did wrong in this repair film. Your repair is similar to what I do: film, your repairs and critique them to your students and say this is what I did wrong, and this is why you know that's the kind of stuff I think we need to see in school more. Unfortunately, the teacher want to just do everything by the book and that's a problem. You boy, Daniel, what? If your boss won't buy a vacuum, scale recovery, machine yeah - I mean I'm not saying you need to stay at a company forever, but I think you know where we're going with that.

You boy, Daniel okay, there's a time and place to leave and if they're not buying recovery machines, I mean they don't even provide them or I mean, but you know I'm not arguing for people that don't provide them. Some companies expect technicians to buy them and that's part of your pay scale. Okay, but if your company doesn't advocate pulling vacuums, then yes, it is time to move on. Okay, that's a far cry from someone just taking a shortcut.
I mean that's ridiculous, exactly all right! So in the latest Chi rec video, I'm using the D text select, how does it stack up against other leak detectors? I've used the D text select has been the leak detector that I have used for probably the last ten years. Okay, before that, I used the CPS leak seeker. I believe - and then even before that I think I had one of the first infocon leak detectors. Okay, I have been very satisfied with the D text select.

In fact, I don't like to talk crap about people's products, but I have recently heard from a buddy of mine some information about the detect Stratos that has made me think twice about buying the D text Stratos and just sticking with my D tech select. So I like to I'm a creature of habit, so I'm gon na stick with my D tech select. I do enjoy it, I'm intrigued by the D Tech Stratos, but I'm gon na stick with the D tech select for now it's been something that has done me. Well, now, with any leak detector there is you get comfortable and you get used to the way that it works.

So if someone handed me a 10 pro right, H, 10 supposed to be like arguably the best leak detector out there right or one of these bacharach freakin, 10 million dollar leak detectors. Each one of those is going to have a certain method that you need to get used to using it in. I am used to my D text select okay, so I can find for 10a, r22. 404.

All different refrigerant leaks with my DTEC select and it does me a really good job and I think it's very trustworthy okay, so I think it really just depends on what you're comfortable with okay and I'm not talking crap about anybody's products. It's just really what you're comfortable with so. Hopefully I answer your question there for you. Let me see, should you get your g3 and try to find work or get a g2 license and start work from there, Civil slavonski, John John or Haun? I'm sorry.

If I butchered your name, I do not know how to pronounce that. I don't know what a g2 and a g3 is here in the States or at least in California. We I'm assuming that's some sort of a license that doesn't apply to me. So you can answer me in the chat, if not send me an email, and I can probably correspond with you more now.

That's a great segue, though, because I did have some questions about this. So in California, our licensing requirements are pretty much non-existent to be a service technician. Okay, the only licensing requirement that you need in California is to have a federally mandated EPA license. Okay, the EPA Section 608 license is what you need to work on: refrigeration and air conditioning, basically, okay.
It basically just proves that you understand that it is illegal to vent refrigerant into the atmosphere other than that to be a service technician in California. Do you do not need any other licenses required by the state? Now, if you want to be a contractor, you have to have a contractor's license which requires that you've been a contractor for so much. I mean a service technician for so many years and your experience and all that fancy stuff there are certainly certifications that will help you in your career, but they are not required by anybody here in California. There are certain states in the United States that require certain licenses, but California is not one of them.

I really wish that California would require licenses. Okay. Unfortunately, when places require licenses all often times they will dumb down the requirements because they realize that if someone was required to pass a certain test to be able to be an HVAC service technician. Well, you know some people are good at tests.

Some people aren't some people are better mechanics but they're, just not good at tests and vice versa, and so they tend to dumb down the questions to compensate for those mechanics that aren't good at test. Taking two different things like that, so testing in general is not a valid way, in my opinion, to vet a technician so all right, um. Let me see what I go. What I'm missing in here, I saw my buddy Ralph in here.

I'm always plugging my buddy Ralph, because he's always willing to help people out Ralph from Honeywell, if you guys have any refrigerant related questions, whether it comes to alternative refrigerants or anything like that. Do me a favor and hit up my buddy Ralph, okay, 6:09, correct Ralph is saying that the 609 certification is a automotive. Yes, that is correct. The 608 is refrigeration and air conditioning and the 609 is the automotive one.

I don't know if I made that mistake or if he was just stating the fact from someone else's comment, but all right. Let me see if I missing any questions in here. Ok, oh it's! Canadian! Ok got you gasps! Ok, yeah thanks Joe Joe's got that covered all right does achieving target superheat mean that the equipment will cool properly. No great question: ok! So someone and that's gon na segue me into another question that someone had asked me to ok.

So, first off, where do we find out this information? How do we know that this particular air conditioner needs a target superheat of blank or a required sub of blank okay? How do we know that? How do we know when we're working on a walk-in freezer, that we need a 10-degree, evaporator, superheat or a walk-in freezer, would more than likely be 6 to 8 degrees, evaporator superheat? How do we know that? How do we know that the sub cooling should be? What well, if you're, working on a walk-in freezer for the most part, you're gon na blow sub cooling out the window? Okay, as far as a charging metric, okay, but anyways, there's a lot of rules of thumb in our industry. I would highly suggest that you simply read the manuals. Ok, the manufacturers produce all sorts of information, and all you guys have to do is pick up your phones and ask the Google ok just pick up your phone and ask the Google some questions. Ok, there is some great literature out there, some great books.
Ok, I highly highly suggest and hey guess: I'm gon na give spoilin a shameless plug. Okay, I highly suggest that you go to sport, Lenz websites, poor Lynne, dot-com, okay and there's lots of great training resources on there. Please, please, please, check out, spoil ins website, they got lots of great stuff plus there are channel sponsors. So, of course, you guys supporting them is gon na help me, okay, but one of my buddies.

Mr. dick Wars I had the opportunity to meet him recently has a great refrigeration book that has lots of great valuable information. The reason why I like dick wars book is because it's full of general information that gives you in the ballpark it has rules of thumb, see most manufacturer most most technical books and different things. There are those teachers that want to just give you the by-the-book numbers like you need to have this perfect super heat all the time or you need to have this or you need to have that the cool thing about dick wars book is, he has the TR Ot section: it's technician, rule of thumb, okay and it just gets you to ballpark and of course, he always recommends that you lean on the manufacturers right to find their their information that they require.

But if you don't have the manufacturers required super heat for that particular walk-in freezer guess what you can use a rule of thumb now, dick Wars didn't invent those rules of thumb he just consolidated them into a book. Okay, the book is called commercial refrigeration for air-conditioning technicians. It's in the show notes of this video. Just click on the show notes.

This is it right here. I got no affiliation with him other than the fact that he's an awesome dude and I had the opportunity to meet him, but that is a great book. That book gives you great valuable information. Okay, but all you got to do is do some research right.

I learned a lot of my knowledge, or at least I went when I when I hit the the peak of my career. What did I say like five years into my career and I realized that my stuff did stink and that I didn't know everything I found out a message board called the HVAC talk: comm, okay, it's not as popular now, but it was way popular back then, and There was a 2000-2002 that's when I realized that my stuff didn't stink and that I didn't know everything. I realized that there was other technicians out there and there's a plethora of knowledge on the internet guys. So just do some research you'll find it out.
Okay, hopefully oh and then so to answer your question: how do I know that does target superheat mean no targets? Superheat assumes that your system is working properly based off of the superheat, but your superheat, your your super, your measured superheat okay, can be manipulated by the air flow of your blower motor. If the air flow is being restricted. Okay, because the ductwork is restricted, then you're gon na to typically have lower than normal superheat. Okay, so let's just say that you're low uncharged, but you have very low airflow.

It's a very good possibility that you might show that you have a good superheat measurement, but you're still low on charge and you're, not putting the proper capacity or the delivered. Btus is not accurate right. So there's all sorts of things. So, just because your superheat is right or your subcooling is right - does not mean everything's right.

We do something called the big picture. Diagnostics here. Okay, we look at the big picture. You evaluate everything.

You've got to use the vital signs and you got to use your senses. Okay, you got to look, listen and feel. Okay. Airflow is a very difficult thing to measure when it comes to package units and even split systems.

It's very difficult. Yes, there's all sorts of things. Yes, people say that you can use a manometer and you can get static pressure and you can use a fan table, but even that can be manipulated. Okay, so just because the fan table says that at 0.50 static you have perfect, air flow does not mean you have perfect air flow, and that goes to package units, split systems or anything.

You need to look at everything. That's where - and I will advocate for digital gauges and performance software all day, long measure. Quick again, I have no affiliation with measure quick, but I really do like it. It's not so much that I use measure quick for the Diagnostics, but I use it because it puts all the information at my fingertips.

Okay measure quick, gives you air superheat, subcooling pressures. Evaporator temperature delivered BTU capacity all in one place, so you can look at it and say my BTU capacity is low. My airflow is low. My superheat is normal.

My sub poins low something's wrong here. Okay, now you can certainly do all your work without not software, with all out all that information, but it's super nice to have it all in one place and then be able to make an educated decision on what's going on with the system. Okay. So if you have the proper target superheat is your system working properly? No, not necessarily okay, so you got a look at everything.

All right measuring air flow is very difficult. How are you gon na measure? It are you gon na use a flow hood? Okay? Can your flow hood accept more than 2,000 CFM's? Well, then, you better not be working on a bigger than a 5 ton system. You know how do you know that? How do you measure 2,000 CFM's of airflow when you have multiple diffusers? Okay, that's a difficult thing because when you put that flow hood up to one diffuser, theoretically, you slow down that diffuser because you create a restriction and the other ones blow faster. So, each time you move to the other diffuser, the air is being diverted to the other diffuser.
So, okay, so a flow hood is a good resource, but there's other methods. What happens if you use a true flow grid? Okay, a true flow grid can be difficult too, because if it's not set up properly, you might not get proper data from it right. What happens if you use a you know: static pressure tips and you're measuring air flow. I already covered that one there's so many different ways to measure air flow and there's so many ways that can be flawed, so understanding and again, I'm not an expert right.

I just know that hey this can be flawed, and this is why - and this can be flawed, and this is why so, understanding that you're, never gon na achieve perfection is the first point of starting right. You start there and then you work your way up from that, just understanding that you will never find a perfect system and if you did find a perfect system something's wrong. Okay, because it's a unicorn, I would love for someone to send me the picture showing a perfect system. I'd be very intrigued to see that okay, hopefully I'm not just like diffusing everybody's vibe, but this is the real Chris okay.

What gauge set would i recommend for a newbie um? I mean it really depends on what you're comfortable with I'm a field. Piece fan. You can call me a field piece fanboy. I got nothing bad to say about testo products.

I've just never used them. Okay, I like field piece products, but I will argue that with digital comes some other issues. If you don't know how to interpret a digital gauge and how to know when something's going wrong, then a digital gauge can lead. You ask you right, but so can a compound manifold.

Okay, so you have to know the basics and how to properly set them up to know when they're giving you correct information. So short answer check out the field piece. Sman manifolds for your first manifold may be a field piece JobLink kit for your first manifold set right. That's what I would suggest, but there's nothing wrong with the testo products.

There's nothing wrong with the testo probes. There's nothing wrong with the I manifold products or with a standard compound. You can do the same stuff with all of that equipment. Okay, so really it's what your budget can afford.

That's where I would go with that one. Hopefully you guys! Thank you very much for these super chats. You guys are all flippin awesome man thanks so much and I am a buzzkill there, Scott sorry, I am a buzzkill. That is this is the real Chris, okay yeah thanks Joe really appreciate it guys all right.
Let's see what else, what are my thoughts on using copper sulfate on drain lines? Mr. psycho, I've never used copper sulfate on drain lines, don't even know what copper sulfate is. So I'ma be honest. Sorry, if I'm some idiot for not knowing what that is, I apologize.

I'm assuming it's an additive to try to prevent something, but I genuinely don't know so. Please educate me, I'm not offended at all. You can do it in the chat or send me an email on I'm intrigued. What is copper sulfate? I know I can do the Google thing, but send me an email.

Let me know, let me see what else we got going on Edgar. You have a question: what will be the superheat target for a pan chiller with glycol in 404, a with a t, -- xv, your boss loves to run it at five psi with a 250 psi high, okay. So, first off I do not know because every manufacturer of each particular piece of equipment, I'm assuming you're working on a refrigeration piece of equipment, you're talking about a pan, chiller, four pans. Okay.

So what I'm gon na tell you is to lean on the manufacturer. I'm pretty confident to tell you that they're gon na say they won about six to eight degrees, evaporator superheat, on a coal drill, pan chiller, assuming it's a static, pan chiller without a fan motor, probably about six to eight degrees, evaporator superheat. As far as the pressures run, that's a hard thing: okay, you're gon na - want to ask the manufacturer how they designed it, and it all depends on how big the condensing unit is. That's gon na affect your TD there's lots of variables in that question.

Okay, assuming that the pressures need to be this at this particular pressure, that's a little bit difficult. I don't want to say that your boss is wrong. Okay, but there's there's a lot of missing information there and I kind of need some context on what he's telling you. So please send me an email to HVAC our videos at gmail.com and we can talk a little bit more but to give a blanket statement that your pressures need to be this, and this that's not quite accurate, because your your suction pressure is gon na change, depending On your box temperature or your product temperature, your condensing temperature is going to change basically depending on your outdoor ambient temperature or wherever your condenser is located.

Okay, so each one of those is gon na change, and it's never gon na. Be this exact number at this exact or you know at different temperature, so hopefully that answers that one for you. How long should belts last angel Torres? That's a great question, but it really depends on the environment they're in if you, if you are in the Palm Desert area of California, where it gets to about 120 to 125 degrees, 120 degree ambient, but on the roof the equipment is much hotter. Your belts are gon na last, a lot less.
You know they aren't going to last as long as, if you're, in a coastal climate in California, where the average high temperature is 90 degrees in the summertime okay, so the ambient temperature is going to define belt life. Basically, also pulley alignment and different things like that is going to change things too, but a easy answer is: is you should at least get six months of life out of a belt? That's the easy answer. Okay, sometimes you can get longer if you take care of them, so really depends on what you're working on. Let's see what else.

So we got movies and songs kind of curious. If anybody gets them, I've been a little difficult on the songs. The movie should be a super easy one though, so let me know if you guys get that what is a common cause for evaporator fan motor to go bad, John Deere again, that's a subjective. Question really depends on what you're working on so evaporator fan motors can fail because of electrical issues.

Capacitor is poor power coming to them. There's so many different issues that can cause an evaporator fan motor failure. If it's a refrigeration system, more than likely it's going to be moisture issues icing up people spraying water on it. If it's an air conditioning issue, I would argue that it's probably a power issue causing low voltage high voltage, capacitor failures, different things like that, so it really depends and that's a very subjective question thoughts of enrolling belts on due to HVAC great question: do you want To know how I put a belt on every single system, I roll it on the belt on the pulley.

I am NOT a perfect technician. Okay, rolling a belt on is absolutely incorrect, but it's a shortcut that I take all the time. So what that means is, is you your pulleys are lined up perfect and you put it on the small pulley and then you roll it on the big one and theoretically it stretches the belt out. I roll them all the time I have my entire career.

I know it's not correct, I know it's not the proper practices, but it's life and it's what I do so I do it every day. I'm a horrible technician for it. I'm sure there you go tech Dan daddy, is no effects. It is what's the matter with parents these days, and that is an awesome song.

If you guys haven't heard it check out no effects, be prepared, they're, a punk band, okay, but no effects. What's the matter with parents, these days is an awesome song. Let me see, and the movie is smoking, the Bandit, that's right, yeah, easy movie, see see easy easy movie today, but the no effects I had a no effect song last week and I don't think anybody got it. So I Nissi up my music goes all over the place.

I was in a no effects mood and then I was listening to NF this this afternoon. I listened to everything I listened to country music, all that stuff. So yeah. Please put your questions and capslock guys.

What happens when you put a higher rpm motor on a condenser? Oh great question, so if you put a higher rpm motor on a condenser, so let's just say you have a carrier package unit that has 800 840 rpm. I think 840 is the normal. Is it 840 or am i tripping right now, there's two motors there's a 800 rpm, a 40 rpm and that's 1075 rpm on most condensers and if you put a 1075 on a package unit that requires an 840 whatever it is RPM motor, then what's gon na Happen is that motor is gon na move air potentially through that condenser to fast now. The other thing that's gon na happen is the blade.
Oftentimes is pitched in a way that it moves so much air at that particular rpm. So if you put a faster RPM motor with an existing blade, then you're, theoretically gon na overload that motor okay. So if you put a higher rpm motor on a system, then you potentially are gon na burn up the motor faster. But you can also affect some things that you're gon na move the air so fast.

If it doesn't overload the motor it's gon na move the air too fast through the condenser and not allow the air to properly absorb the heat from the condenser okay. So you got a stick with the correct rpm motors, very important thing to do when you're working and that's a common mistake too, where you'll go up and you'll find that someone put the wrong motor just because they saw half horsepower. They didn't pay attention that the RPM was this. Okay, the most important things you need to look at when you're, changing and condenser fan motor on anything is the RPM.

The current draw of the existing motor the frame size of the existing motor okay, the frame size, is gon na dictate the width of the motor, the shaft size and the voltage okay, very important thing, so voltage frame, size, rpm and current draw of the existing motor. Very important things to look at and also another thing. The horsepower is something you want to pay attention to, but the horse power can skew you and mess you up. A little bit, for instance, carrier puts that their particular package unit requires a 1/3 horsepower motor that runs at its just just say, a motor okay.

So it's a 1/3 horsepower motor at 1075. Rpm. 208 volts. Ok! So you go down to your van and you have an aftermarket motor.

That is a 1/3 horsepower, it is a 1075 and it is 280 volts and you figure, you know what this motor is. Probably fine, but what you didn't do was you didn't? Look at the current draw of the existing motor. The current draw of the existing motor said 2.4 amps well go down to the aftermarket motor that you have in your van and you notice that the 1/3 horsepower motor at 1075 and 208 volt straws 1.3 amps. Ok carrier does some weird crap.

I don't know why it's not just carrier. All manufacturers do this train Linux. They all do this where they test their motors under different conditions. So you have to pay attention to the current draw of the existing motor so often times.
If you look at the current draw of that particular 1/3 horsepower motor, that's the OEM motor and you notice that it says 2.4. I know in my head that an aftermarket motor replacement would be a 1/2 horsepower motor for that. Okay, so the RPM is the same. The voltage is the same.

The current draw is now the same, but the horsepower went up. Okay, so manufacturers do that kind of stuff. So you can't just put something on there: not paying attention to the current draw, always a pay attention to the rated current draw on the existing motor that you're replacing when you're putting in an aftermarket. That's also an argument to be made about using OEM components.

I try as much as possible to use OEM components when it comes to air conditioning equipment or refrigeration equipment, because there's less guesswork and less worry as a business owner. If I tell my guys to use OEM only, then I don't have to worry about them. Putting in the wrong motor not paying attention to all that information, it's just easier. Okay, yeah-oh am cost a couple bucks more, but it's one less thing I have to worry about.

Is my technicians making decisions and making the wrong decision put in the OEM motor check? The voltage before you put it in put the new OEM motor in there. The voltage is good. The current draw is good, you test it out and it's good then I feel safe. So my offer code on true tech tools is big picture.

One word now. I will say that at this point in time it benefits me most if you guys use my affiliate links. So if you guys are gon na purchase something from true tech tools, do me a favor if there's not an affiliate link in my video already for that particular tool. Send me an email and I'll generate an affiliate link for you guys, so you can use my offer code, big picture one word and it will get you eight percent off your order.

But if you want to help me out, let me send you an affiliate link, because that's how I will I get a small commission from the affiliate links so best tips for cleaning ice machines, Peter okay, the best tip. I can give you for cleaning ice machines as understand the sequence of operation. That's one of the most important things about cleaning an ice machine. If you understand the sequence of operation, then the cleaning will come much easier and you'll know what's going on in there.

If you're, just a blanket text sent in to clean an ice machine, you don't understand how it works. You're gon na run into some problems, okay, so, for instance, if you get done cleaning a Manitowoc ice machine, you put it together and you walk away. Well, was there something going on with a thickness sensor? Was it set correctly when you put it back on there? You know understanding the sequence of operation, okay, also understanding that, following the instruction manual and the ice machine that simply says pour cleaner and there put it in clean cycle and walk away. That is not a clean ice machine.
You have to tear that machine down. Okay, if you look in an any ice machine manual out there for any manufacturer - and they tell you that a cleaning takes this much time guarantee you had three times the amount of time, but whatever they said on there is gon na. Take is gon na be how long it takes you to properly clean that ice machine. A proper cleaning on an ice machine involves pouring cleaner in the ice machine, doing their normal cleaning process by pushing the clean budding button, letting it finish the cycle then tearing down the entire machine, brushing the components pushing brushes through all the hoses scrubbing them down.

Soaking. The components an ice machine cleaner, then putting it back together, then rinsing the machine with clean water, then pouring sanitizer in that machine and then doing the whole cleaning process again short of tearing it apart again, then, okay, so three to four times as long as it Says in the manual that's how long it's gon na take you to properly clean a nice machine. You see these manufacturers of ice machines. They publish this data that says our ice machine can be cleaned in 25 minutes.

Well, that's BS when they say that that's just to sell their ice machine, that's a selling point they're trying to use that is not gon na be a thorough ice machine. I don't care what manufacturer is out there. None of them have published true information about how long it takes to properly clean their ice machines. Okay, it takes a long time to do a thorough job on an ice machine.

What are the common causes for a bent fan blade on a walking evaporator a bent fan blade on a walking evaporator is usually caused by a dummy service technician going in there to defrost that evaporator and bending the blade out of the way to stick a hose In there okay bent fan blades typically don't happen on their own. It might be a employee of the restaurant getting in there trying to defrost it with a hose. But if you have a bent fan blade, it typically doesn't happen on its own. Unless that family, it is really old and it's been hitting ice or something like that: okay, but ice, isn't typically just gon na bend a fan blade it's gon na gouge it.

So if you have a bent fan blade, it's usually user error. On the flip side, I'm not saying that technician, bending a fan blade, is a bad thing. If you have to go out there and defrost a walk-in cooler ten times in a month, it's inevitable that that fan blade is gon na get bent. Okay, so the more you defrost it, the more issues you're gon na have with blades the more you have to replace them.

I think the argument has to be made is: is that when you change a fan motor, you should probably think about changing the blade, pretty good thought to be. Have I talked to my buddy Rudy. He is yeah Miguel Martinez, my buddy Rudy does work yeah. He is a he is working for the Union.
Now, yes, I do know Rudy Shackleford he's a good friend of mine. Yes, I have talked to him talked to him a couple weeks ago. So yeah he's a really cool dude. What would happen if I installed a Linux prodigy board on a carrier package unit, helpful and cool videos? You'd be a mad scientist.

There's installing a proprietary circuit board on another manufacturers. Piece of equipment is going to take a lot of a lot of engineering thoughts in your head. I'm not saying it couldn't work, but you're gon na have to do so much stuff to make that thing work properly. So let me see what else we got in here.

Do I prefer cog belts over standard for the extra couple bucks yeah. I prefer to use a cog belt. My experience and my testing has proven that to myself that putting on a cog belt or a notched belt, whatever you want to call them, makes the belts last longer. Okay, the whole theory behind a cog belt is is that it has less as more space to displace heat.

Basically, so it has little notches in the belt. It allows it to bend, therefore generating less heat on the belt. Therefore, making it last longer - and I agree - that's spending the extra couple bucks on a cog belt is worth it because it as a business owner. I try to put cog belts on everything or ax belts or BX belts or whatever you want to call them.

In my opinion, they last a lot longer, but a a cog belt is not gon na solve for improperly aligned, pulleys or worn-out pulleys. So you have to maintain your power transmission equipment right. You got to have proper pulleys that are in good shape. Okay, Gil! Thank you very much for that super chat dude.

That is flippin, awesome bud. No, no awesome man again! Thank you very much for that super chat Gil. That is amazing. Let's see what else, what am I missing here? Is it possible to overcharge a walk-in cooler? Yeah? Definitely it's possible to overcharge a walk-in cooler, there's omma, there's only so much storage capacity in the receiver of a walk-in cooler.

Once you go past the the the maximum fill basically of that receiver, which is about 3/4 of the way 80 % you're theoretically, adding too much gas to the system - and it's not gon na - have room for that gas to move around. So, yes, you can overcharge anything all right. I'm gon na get to my list of things right here. Okay, so I had two videos this last week.

The two videos that I had was a chi rach region not working properly and a trained voyager, not working properly. The trained Voyager was a really important because I did use measure quick and I was looking at all the information and I noticed I kind of had a feeling that we might have had a dirty, condenser and measure quick verified that I was just kind of curious Of measure quick was gon na have the correct diagnosis. Now what I found was that the split row condenser was dirty. In fact, it was plugged solid that particular condenser, and I showed that from the outside it looked perfect.
There was nothing wrong with the condenser from the outside. It looked nice and clean okay, but it was deceiving because there was three rows towards the end of that condenser and that second row was plugged solid and I showed in the video that there's absolutely no way to properly clean that condenser from the outside. Because when you clean the outside, you just push the crap on the inside. With that being said, split row condensers they do not just apply to commercial equipment.

I would argue that if you have a newer split system that has 410 a in it and it's four tons or bigger, I can pretty much guarantee it's gon na have a split row condenser out there. Typically, the the the you may see some three ton stuff, but for the most part, four tonnes and up on a 410 a condenser now my particular condenser on my house is a 4 ton and it's r22. It's a split row condenser on my residential home. Ok, so even in the residential side, cleaning a condenser from the outside does not doing it simply cleaning it from the inside does not do it.

You have to stare at it for a minute and you'll see that there's two condensers there understand you guys need to properly clean this equipment. If you guys are going in there and just blasting it with water and walking away you're, not doing your due gel due diligence you're not going through that equipment properly, so residential or commercial pay attention for split row, condensers very important thing to understand so even cleaning It from the inside is not if it's a split row, condenser you're, just shoving crap into another spot, very important thing: ok, yeah! There's that link again to the spore'ln thing. So spoilin has a webinar May 14th there's a link again to it guys check that out. It's gon na be on electronic expansion valve areum portent thing to check out that'll, be a great one for you guys.

Ok, let me see what I'm missing here. Anyone seen the spore Len smart probes, Gil HVAC, our heat master, I'm assuming you're asking someone else. I have the spoilin smart probes, but I haven't seen yours, so is it party answered that question? Can a freezer use propane our 290 uh yeah? I mean yeah, there's, there's freezers that are using our 290 equipment out there yeah. Definitely so how do I clean coils? If there is no water on site ever use, no rinse cleaner, Oh Scott, dude Scott, that is, that is an amazing super chat.

Thank you holy crap Scott. Thank you very much man, Scott's HVAC rookie that dude. That is totally uncalled for, but thank you very much. Man that is flippin awesome.

Okay, how do I clean coils? If there's no water access? That's no! No rinse, coil! Cleaner is not going to do anything. Okay, so understand something. There is not a cleaner out there if it says no rinse. It means that if you read the fine print, it means it's self rinsing.
So no rents is meant to be used on an evaporator. If it's a foaming, cleaner, correct me. If I'm wrong send me the information, but I know for a fact that, with the Viper products and the new Calgon products, if it says no rents, it means in the fine print if it's got condensation coming off the evaporator that it'll self rinse itself. Okay, there is not a no rents, condenser coil, cleaner that I have ever seen in my career okay, so if it has something going on there, but maybe I'm wrong.

Send me some information, okay, but there is not a new Calgon product or a viper product out there. That is no rinse for a condenser. Okay, it has a chemical in it, especially if it has degreasers. You have to rinse that stuff off.

So there has to be water access now, if you don't have water access, you can bring a bucket of water. You can bring a pump sprayer a pump. Sprayer is not going to get you very far. You're really gon na need to bring some water up there.


15 thoughts on “Hvacr videos q and a livestream 05/04/20”
  1. Avataaar/Circle Created with python_avatars Wade Spring says:

    I REALLY appreciate the statement of sometimes we can't do work perfectly. I'm naturally a perfectionist, and I needed this reminder. Are you in Orleans ?

  2. Avataaar/Circle Created with python_avatars JoJo Morgan says:

    LMAO "Rolling belts on is wrong" 20yr diesel tech and I do that every time I change a V-belt and sometimes on serpentine belts I have never had one come back because of It……

  3. Avataaar/Circle Created with python_avatars scott bustamante says:

    you play any games? hell of a setup for a non gamer hah

  4. Avataaar/Circle Created with python_avatars Brad Murray says:

    I'm still in the school of YouTube

  5. Avataaar/Circle Created with python_avatars D Har says:

    "Refrigerant systems should not contain excessive amounts of air
    or other noncondensable gases. Oxygen in air can react with the
    lubricant to form oxidation products. More importantly, nitrogen in
    the air (which does not react with lubricant) is a noncondensable gas
    that can interfere with performance. In some systems, the tolerable
    volume of noncondensables is very low. Therefore, if the lubricant
    is added after the system is evacuated, it must not contain an excessive
    amount of dissolved air or other noncondensable gas. Using a
    vacuum to dry the lubricant removes dissolved air. However, if the
    deaerated lubricant is stored under pressure in dry air, it will reabsorb
    air in proportion to the pressure (Baldwin and Daniel 1953).
    Dry nitrogen blankets are preferred over using dry air for keeping
    lubricants dry, because introducing air into a system can cause problems
    with unintended oxidation."

  6. Avataaar/Circle Created with python_avatars Gary Miles says:

    Hey I’m an computer/network tech, we all get stuff wrong, that’s because we are fixing things. Spent years being woken up 7 days a week, but I needed the job. Thanks for the videos.

  7. Avataaar/Circle Created with python_avatars The Air Conditioning Guy says:

    Unrelated question. What mic are you using?

  8. Avataaar/Circle Created with python_avatars DmiesterCommKitchenTech says:

    Chris new to your channel but I am a CFESA Master Technician that has been working in the Commercial Food and Comfort Equipment trade since '97 but last month I came across a Emerson ECU that was a bump start controller meaning it has to bump start the compressor 3x's before the compressor will start and run so now for my question have you came across one and do you know what the purpose this bump start serves. This ECU is on a new Norlake WIF. Service area Barrhaven??

  9. Avataaar/Circle Created with python_avatars Controls Talk says:

    Great live stream Chris keep up the hard work. Also those 15 hour calls are where you normally learn the most. Yes a pain but worth it normally.

  10. Avataaar/Circle Created with python_avatars Star Bright Heating & Refrigeration says:

    And in Canada we have a 313D which is a residential Air conditioning licence up to I think 2-5 tons If I'm not mistaken and the highest level in Canada is a 313a air conditioning and Refrigeration mechanic

  11. Avataaar/Circle Created with python_avatars Star Bright Heating & Refrigeration says:

    Chris to the guy who said G3 Ontario has G3 is a beginner gas licence. G2 is intermediate level work alone and work on units up to 400,000 btu and G1 is the highest gas licence you can work over 400,00

  12. Avataaar/Circle Created with python_avatars Lorenzo Ontiveros says:

    Remember if u have time talk about super heat

  13. Avataaar/Circle Created with python_avatars Lorenzo Ontiveros says:

    I think 🤔 I a little late

  14. Avataaar/Circle Created with python_avatars Brock Dalgetty says:

    Supermarket guy here! Love the videos! Service area Kanata??

  15. Avataaar/Circle Created with python_avatars Michael Orcutt says:

    Where can you get service information on kairak units?

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