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 and hello. How are you guys doing this evening? Hopefully you all are doing. Well, i'm pretty good over here, you know, work is uh, work is work and it's pretty busy.

You know about as busy as i want it to be. For the last you know. Last month we had a lot of craziness going on it's kind of tapering off and leveling out. I mean we still have a lot of work and a lot of we're still behind, but we're catching up on a lot of our service calls.

We had uh. We had a good two, two and a half week like backlog of service calls that were not um priorities. Basically, you know like when the customers called in and said uh, you know reaching coolers are down and stuff like that like unless it was an emergency cooler. Like we were putting those on hold because we had so many walk-in coolers walk-in freezers ice machines, air conditioners, you know, so we prioritize our calls.

So it really doesn't even matter like if you put in a call and it's for like a door gasket or a door hinge or something like that. You know not closing. That goes to the bottom of my list and i prioritize emergencies. You know entire dining rooms being warm.

You know that kind of stuff, so i still have a few backlogged like ac calls. We have a couple compressor changeouts that um have a bar unit that, like a year ago, one of the compressors went bad and we just disconnected it. It was grounded. It has two compressors and they've, been, you know, maintaining temperatures in there, so we haven't gotten to it and i've gotten authorization from the customer.

They said just fix it, but i just haven't had time to go, spend an entire day on the roof, changing out a grounded compressor and to top it all off. That particular grounded compressor is on a carrier package unit with a fixed, orifice metering device. So good luck with that that metering device is probably going to be plugged up, but that's a whole nother problem to have so um. I will say that this week's video i'll give you guys a little spoiler uh.

This week's video is going to be pretty cool. I've already got it edited and done and it's ready. I just need to kind of finalize some some analytics stuff, and you know the thumbnail and things like that. But we have a carrier package unit that has a plugged up metering device and it's the fixed orifice, accurate style metering device and we're going to be um replacing that.

So that's an interesting one and it's really interesting because of course it didn't go as planned and there was some hiccups and problems and then there's a cool autopsy at the end, so stay tuned, it'll post thursday afternoon at my normal time. My videos, if you don't notice they they post regularly, like i have them scheduled to post. So my thursday videos post at 11 45 a.m, pacific time and then my sunday, videos post at 5 a.m, um pacific time on sundays, so that that'll be. But the thursday video will be the fixed orifice metering device.

So that'll be a cool one um. It was kind of a fun one to edit and everything. So it's pretty neat and then i like the whole style of autopsy in the parts. I can't always do that, but when i can go in there after the fact, an autopsy, why something failed.

It just helps me as a technician better to understand exactly what's going on. It's really interesting because i found out something really interesting about the accurate style metering devices, the the fixed orifice metering devices with the liquid headers on the carriers, um, there's actually i'll, say it, but there's actually two orifices on that about an inch apart, which is really Interesting and we'll also go um prove my point that you can't re. I mean you: can you can attempt to clear those metering devices but um? It doesn't always work the way you think and the fact that there's two of them there about an inch apart, makes it even harder, because once you get through one orifice, there's going to be a pressure drop and then it's going to be hard to build. That pressure back up to get through the other other orifice, so i'm trying to clear it by heating it up and things like that and i'll talk about it more in the video but that'll be an interesting one.

So stay tuned for this thursday coming up so um, i see a lot of cool people on the chat right now as usual, if you guys have things you want me to talk about in the stream, put your questions or your comments in caps, lock. Okay, that helps myself and the moderators to see them and understand something: okay and uh. I'm specifically talking to one person, i'm not going to say his name, but you should know who you are. I don't always get to everybody's questions: bud, okay, um, relax! I'm there's nothing against you.

I i constantly i go through the the comments a lot of times at the end of the stream and i read them and there's one guy that constantly gets butt hurt because i don't get to his questions. Bro, i'm not attacking you. I'm not ignoring you like it, just it's hard to get to all the questions. So if you have something i don't get to you guys can email me at hvacr videos, gmail.com, okay and i'll, try to get to them, but anyways.

If you guys have things you want me to talk about, put them in caps, lock, okay, the 98 deville amazing. Thank you so much for that super chat. That is awesome. You guys you do not have to do the super chats, but they are much appreciated.

They definitely helped the channel to keep going um. You know same thing with like the video support and stuff. I do have to say. Thank you.

I have several youtube channel members in here several patreon patrons in here, and those are just ways to support the channel. Monetarily, you basically commit to a monthly commitment of different amounts, depending on which program you go through. I think youtube i think, even patreon. I think you can pick what you want to do, but anyways there's several people that choose to support the channel and thank you guys so very much again.

You guys don't have to do that stuff, but i do have to acknowledge the people that do um. Another way if you're interested in supporting the channel is simply going to my website hvacrvideos.com, we got merchandise, available, hats and all that stuff um, but guys the easiest way. The the easiest way to support the channel is simply just watch the videos from start to end. Without skipping through anything, that's the easiest way you don't have to do anything except for just watch the video and just let everything happen.

The way that it's supposed to happen. That's the easiest way. Okay, so again, let's get on with it. I got a list of things i want to talk about, and then i definitely want to get to your questions, but the 98 deville.

Thank you so much for that super chat and i saw another one come through too um, uh emil, emiliano, syez uh. Thank you. So much for that super sticker super chat whatever it is. That's much appreciated, but i really really appreciate it um.

I have to say that this weekend um, i watched what did i watch? Oh shoot really: cool clint eastwood movie, i'm a really big fan of westerns um, there's something about a western, like, i remember, being a kid and my grandpa watching westerns and i hated them right because they were so boring and so slow, but there's something about it. As you get older and even my wife, my wife is like these are so slow and it's like, but i appreciate the fact that they're so slow, there's a story here, they're not in a hurry to get to anywhere and you just get to chill and watch It you know um, and i was watching the the uh um, the clint eastwood uh. What is it uh, the josie wales one. I can't remember the exact title, but whatever josie whales uh, just such a great movie, just so great just to be able to relax, and you don't have to think i think that's what it is.

I think, as an adult when i get to shut my brain off and just not think but enjoy something. That's that's awesome. You know so when i can sit down and watch a western and just chill have a drink, some chip, some chips or something like that. You know and just watch it and not have to think too hard.

I really appreciate that it's just really cool it's a nice way for me to relax, but all right um when the tweakers stole the copper. How much did that all cost michael um? Well, i didn't sell the equipment, the customer buys the equipment themselves, so i basically just sold them the the labor and all that stuff, but all together i did some estimations and added it up with what the customer spent on the equipment upgrading the electrical like they Had to do and all my stuff and all the little things getting the plumber involved and all that stuff, i believe that cost the restaurant around 75 000 for all five of those package units installed um dealing with all the stuff that they had to deal with. So it's definitely crazy and while you brought that up, that's a great point - i'm gon na cross something off my list and let's talk about this too um. Let me mark this one off uh um.

I had something on my list. I wanted to talk about where's. It at oh okay, so i had a viewer um, i'm not going to say his name and i don't want to alienate him, but i definitely emailed him because he had emailed me and uh. I kind of wanted to address this, so i had a viewer that emailed me and it was about the tweaker video and he took offense to the fact that i was referring to them as tweakers and that i was upset with the fact that the tweakers had Gotten on the roof and in his email that he sent, i get it, i get why he was offended okay.

He was offended because he had a friend who lost a battle to drug addiction and i'm not gon na go into crazy details, but he had a friend that lost a battle to drug addiction, and he had a hard time with the fact with me. Referring to him as a tweaker in a derogatory way. Okay, while i understand on one side, you know referring to him as a tweaker, i didn't mean any offense to his friend. I was using the term in general, but i kind of talked about this last week too and i'll say it again: i've gone through issues with family members and drugs and different things like that, and i do not give them a pass.

I love my family members. Um, i love the people right and i miss the people, but the drug addiction gets in the way of our relationship and to call that person a tweaker okay in general. The term tweaker is someone that you know is uh. Look it up on an urban dictionary or something like that, but i mean we refer to it as as a drug addicted person that will do anything to get a fix, stealing stuff and all that good stuff.

Okay, um so uh, i'm sorry to the person that emailed me. Okay, i didn't mean to offend you, but i will stand my ground and say that i referred to these people as tweakers. It is what it is. Okay, i could have said drug user.

I could have said anything. It all means the same stuff. What i thought in my head. It doesn't matter what i called them.

You know down on their luck: drug addicted, tweakers, crackheads, whatever it all means the same thing, because i'm thinking it in my head - and i was frustrated with that. Okay - and i will say this too, because i got a lot of people that asked me. Why was i frustrated? Why was i angry? Because i made a lot of money off of this job and i'm going to tell you - and i said this last week and i'll say it again. The reason why i was frustrated was because my customer didn't plan for this, and this hurt my customer.

I want to continue to work for my customer for a long time. I don't necessarily want to do these kind of jobs. For my customer i would rather fix and replace equipment that has ended its life cycle and the customer has planned to replace it. I don't want them to have to spend that money unplanned and unnecessarily, because someone whatever you want to call them a tweak or a drug addict, a crackhead whatever is down on their luck and decided they needed to damage their equipment, so they could get their next Fix, okay, that person is a thief they stole; they are wrong.

Okay and it doesn't matter how big the customer is, how big of a corporation it is. None of that stealing is stealing there's no justification whatsoever. I don't care how down on your luck. You are or anything like that stealing is wrong in my book and i teach my kids that and i will continue to teach my kids that so it is what it is, i'm going to get off that topic, but i did want to address that to the Person that emailed me, i did not mean any offense directed towards you, but i will stand my ground and i called that person a tweaker because that's exactly what they were, they were potentially a drug addict that was down on their luck that got on the roof And stole a small amount of copper cost the customer 75 grand for the you know: 100 bucks, if that in copper, that they stole right and they damaged that equipment.

So that person is a bad person. They were wrong for stealing and it is what it is. Okay, so that's it! That's my two cents on that. Okay, let's keep on going down the line.

Would a compressor contactor be normally closed instead of normally open joe t um? No, i can't see that a compressor contactor would be normally closed instead of normally open. I don't understand that um i mean i'm not going to say that that's never going to happen, but i've never seen anything like that. So no joe, i don't know why. That would be like that.

I'd be kind of curious to see a schematic. If you want to send me a schematic of the unit that you're working on then maybe it'll make more sense. Oftentimes they'll have other things. They'll have like a crankcase heater running through a small contactor that will be engaged when the compressor contactor is disengaged, and things like that.

So i'd be really interested in seeing the schematic of that equipment. Joe feel free to send me an email to hvacr videos, gmail.com and then i can maybe understand a little bit more. I'm gon na go ahead and keep going down through um. Let's see what else do i got in here? What is my preferred leak, detector and that's infinite possibilities that ask me that question um.

I have two leak detectors on my van the field piece, dr 82, and i have the inficon stratus or detect stratus whatever you want to call it both of them are com. Are like they perform equally. In my opinion, okay, the inficon, stratus or detect stratus is a lot more money than the field piece, one so um, i would probably have to say i'd lean more towards the field piece leak detector, but i keep two leak detectors on my van just so i Have redundancy i used to do that in the past. I got away from it for a while, but now i keep two just in case one dies or something happens.

I have a backup one and i have been going to the field piece. One is my first go-to leak detector for sure so um, let's see christopher rogers. Yes, i did see your email. You emailed me about converting an ac to a heat pump.

Did i see that? Yes, i did uh. It was a little bit difficult. I haven't had time to really answer that email um just you know if i don't answer it in another week or two or something like that, send me another email and i'll try to respond, but that's kind of a hard one to answer. It was rather lengthy.

So it'll take a little bit more than just a quick thing. Um, let's see uh. Let's see you emailed me once and never got an answer. I don't know who said that, but i saw it uh email me again guys i get hundreds of emails a week.

I try to get to them, but i miss stuff. Okay, i try to do everything that i can jose rivera. I just saw that super chat come through you're amazing. Thank you so very much okay, my buddy ralph is in here dallas fan.

Uh ralph works for honeywell, refrigerants and ralph is always willing to help people out um when it comes to refrigerant related questions, especially if you guys want to convert refrigerants over. You want to change from r22 to something else 404 to something else, you're using r448a, and you want to know what the process is of going through the conversion different things like that feel free to give my buddy ralph an email. Again, he works for honeywell refrigerants. I just posted his email in the chat right now and while we're at it, let's go ahead and knock this out really quick, um or actually no we're going to wait a minute because it's going to make things go crazy.

So give me just a minute. Let me go through here: do some refrigerators come with plugs steve, the traveler? I don't know what you mean by plugs, but uh try to get my attention again in the chat or if anybody any of the moderators see steve answer that question uh. To give me some context: that'll help um, let's see miguel martinez. How many guys did i have on the job to repair all of that uh.

We had one guy on the ground that you didn't see. We had one two, three guys on the roof and then the guy on the ground came up so uh. What is that one? Two three, so we have four people on that job. To do those five acs um, let's see what we got in here, uh put in a nordyne defrost board cost 75 charge 265 total.

Did you screw yourself? Uh r134a? Whole. I i don't know, but it really depends on how much money you wanted to make from that job. Um. You know i i don't know it depends on what your overhead is.

There's there's a lot of of stuff going into that um. You know the the details to that. You know your fuel, your cost, your insurance rates. I mean there's a lot that goes into a price pricing, a job and it's rather complicated so um.

Would there still be bubbles in the sight glass if the vacuum wasn't properly pulled um hmm, would there still be bubbles in the sight glass that the vacuum wasn't properly pulled? I want to say no. I wouldn't say that that's non-condensables i mean, i guess, there's a possibility, but i would imagine that you would see non-condensables in another way. So i don't think that you would see bubbles if you didn't pull a proper vacuum per se, but i could be wrong again. I'm not really thinking too hard about that question so uh.

Why would a system sight glass flashing, but suction line is flooding back? That's a really easy answer vlad if the suction okay, so first off. What do you mean by the suction line is flooding back? Is it actually flooding? What does flooding mean? That means when the refrigerant is coming back as a liquid instead of a vapor, so the only way to know if the refrigerant was flooding back in the suction line would be to take a super heat reading. Okay, if you have zero degrees superheat, then you definitely have liquid refrigerant. Coming back to that compressor, okay, we typically want to see that superheat number get above about six degrees, coming back on a walk-in freezer 10 degrees on a walk-in cooler and then air conditioners go higher and higher okay, so um.

Is it truly flooding back? I don't know, or is it just that the uh, the temperature of the suction line, is below the outside air temperature? So therefore you start condensating, you start sweating, you start having frost coming back. It really depends on what the temperature of the refrigerant coming back is. Okay um, so why is a systems sight glass flashing, but the suction line is flooding back, assuming that the suction line truly is flooding back, then your expansion valve is not regulating the refrigerant properly and or your evaporator is not working correctly. Okay, so there's a less really a loaded question: okay, what is the purpose of a sight glass - and i kind of wanted to discuss this - the purpose of a sight glass is to give you a window into the system at that point in the system.

So where could we use a sight glass? We could use a sight glass on a compressor to look at oil levels. We can use a sight glass on an oil sump on an oil reservoir to see oil levels. Okay, so it's just a window. At that point, we can put a sight glass on the liquid line to help us to know if we have a solid column of liquid at that point.

Remember that, because you can have a sight glass up on the roof at the condensing unit, just coming out of the receiver right, but then down at the evaporator there could be a restriction somewhere in between and the gas could be flashing off. So you might not have a solid column of liquid going to your expansion valve the the there's. A sight glass can serve a couple different purposes too, because sight glasses can also have moisture indicators in them to let you know if there's moisture in the system or if the system is acidic, there's different things like that. Okay, so remember, a sight.

Glass is just a window into the system. At that exact point in the system. In a perfect world, the sight glass is installed as close as possible to the expansion valve. That's not always practical.

We typically have them up on the roof for charging purposes and different things like that. Now i want to cover residential air conditioning and commercial. Air conditioning is a sight glass, a good thing in residential and commercial air conditioning, and yes, it is a good thing, but you need to understand something: an expansion valve in a residential system needs a solid column of liquid going to it. Any expansion valve is meant to work with a solid column of liquid liquid period going to that expansion valve okay, but just because you have a clear sight, glass on an air conditioner does not necessarily mean you have the right amount of refrigerant, because oftentimes manufacturers will Oversize condensers and size evaporators accordingly, and in order to gain the efficiency that they design the unit to operate at you have to add extra refrigerant.

That's why, on txv systems, they will often tell you to charge by sub cooling okay. So if you put a sight glass on a air conditioning system, i would encourage any of you guys to do this and it's a cool experiment and you're charging up a system just throw on a sight glass they're, not that expensive. Okay, you put it on on install and clear the sight, glass, okay, but then check your sub cooling, and you will find typically that your sub colon is not what the manufacturer wants it to be and you're going to have to add more refrigerant beyond just the Clear sight: glass, okay, so keep that in mind when you're dealing with air conditioning systems and i've shown that a bunch of times now another thing to understand on refrigeration systems, too, is that in refrigeration, we'll often tell our guys, clear, the sight, glass and your charge Should be close or within spec? Okay, that's that's true, but it's not just as simple as clearing the sight, glass there's a lot of factors and you have to look beyond just the sight, glass. Okay, if you're dealing with a walk-in cooler or a walk-in freezer or even a region cooler, does it have a head pressure? Control valve that'll require extra refrigerant beyond the sight, glass being clear, okay, but in general you also have to remember that you want to be careful clearing your sight, glass.

When the system is under a really heavy load, you can potentially overcharge the system, so you always want to kind of just look at everything. It's not just as simple as looking at a sight glass when you're charging it and being done. You should be testing current on the compressor. You should be checking super heat at the evaporator.

You should be checking superheat at the compressor, there's a lot of different things, even though we don't use sub cooling and refrigeration. It's as much. It's still a good metric, because sub coiling will still tell us in a refrigeration system if we have a gross overcharge, meaning that we're way overcharged. So all the stuff comes into play, it's not just as simple as clearing a cycle.

So hopefully i answered that question for you bud um laska saying normally closed on a single pole, contactor um. Why would a system cycle? I don't know exactly what that one means relays are common on that: okay, um, i'm i'm getting lost in the questions right now. If i missed your guys's stuff um, let me know: okay, could you carbonate a beverage with r290? Could you carb rate no um petition to start calling sight glasses monocles? Instead, i like that laska, that's a pretty cool one. We're gon na call monocles from now on.

Um, let me see what else we got in here. I see a lot of cool people in here, thanks guys, it's it's so awesome and so humbling to have all you guys come in here and talk and just kind of help, each other out. Do expansion valves just fail over time? A technician told me that they do john deere fan no, not necessarily um. I mean you guys.

Actually it's really cool. I do want to point out. You see my daughter made me that crane. That's like a lego crane.

It's really cool because you can operate it, but i actually have an expansion valve hanging from it right now. So let me grab it so uh. This is a spoiling expansion valve and there's really not a whole lot going on in here. Yes, i mean after 100 years 40 years or something like that, you know, maybe the springs would start to get weak, but the most common failure item on one of these expansion valves is typically the sensing bulb because it may not be installed properly and it tends To rub out or if the sensing bulb rusts out, then it can lose its thermostatic charge that opens and close, or that opens the valve, essentially okay, so this guy is the opening force pushing down on the spring that the spring is counteracting that force right.

That's your super heat setting and that's going to open and close the valve depending on the suction line temperature. Okay, so i mean yes, there's always the potential that this is going to fail over time, but majority of us, if these are installed properly insulated, properly almost dropped it and set up properly they're not going to have a very high failure rate and there's not a Whole lot inside this valve that's going to fail. Okay and the cool thing about the spoiling valves. One of my favorite features is when the power head fails, because that's the most common item, because they typically will rust out because someone doesn't insulate them right or the sensing bubble rust out.

You can just change just the power head, easy as that and clean the screen. This is a flare valve, so it would have a screen right here that would protect it. I actually have a screen from a different style expansion valve right here. I keep these.

In my truck, probably by five or six of them, so you can do hot swaps and change out the screw, the screen or the strainer. Hopefully that answered your question for you. Let me see what else we got in here uh. Would i recommend using swagers instead of crimping or elbow pieces? Well, any time you can have less fittings on the system, the better and the the the? Let me rephrase that the least amount of fittings on a system, the better okay when it comes to pressure, drop and uh, friction loss and different things like that right.

So, as refrigerant turns around to 90, there's going to be a pressure drop, essentially, okay, so you know you have to keep that in mind. So the least amount of fittings that possible are the best right. If you can bend your copper, it's going to be better than using a braised on joint or even a pressed on joint right, but there's times when that's not very practical and there's also understanding that um. You know we account typically for so many fittings within our line sets okay.

So when you're dealing with residential and you're, only gon na have one two three four nineties: it's not a big deal. Okay, when you get into refrigeration - and you have hundreds of 90s in a supermarket case right - that gets to be each one of those is going to add to a potential pressure drop. So the least amount of fittings the better right. So if you can swage a fitting and make a bend instead of putting an actual 90, of course that's going to be better okay, so um, let me see what else we got in here.

I'm like way behind on the comments. So do i always insulate the power head? No, not necessarily, it just depends on the situation. Um when i say insulated, i'm not always going to insulate it, but in certain situations, depending on the temperature of the valve, it's a low temp or something like that. It might be smart to insulate it, but then, at the same time the insulation can also hurt a valve too.

So keep that in mind. Okay, i don't insulate a lot of valves on a walk and freeze or anything like that. It doesn't really happen too much, but if it's outside of the space right, let's say that sometimes you'll see this you'll see a walk-in freezer and you'll see someone install the expansion valve outside of the system or you see it on ice machines. A lot too, where it's running really low, evaporator temperatures, but the expansion valve is located in a warm area.

Then you're going to get a lot of condensation and that's a time when you're going to want to insulate that expansion valve very well to prevent it from condensating. So much and potentially rusting out the power head would be my advice on that one all right! I need to get to a couple of questions on my list right here too. So nathan had asked me if it would be wise to add phase monitors to protect electrical equipment and he's referring to my recent video, where we had an electrical issue. And then i had a bricked board or a locked up circuit board that i had to restore power to to get it to reset, and then we also had the phase loss on the first ac, the bar ac right.

So he's asking. Would it have been smart to go and install a phase monitor in that situation? While i agree that a phase monitor is a good thing? Okay, it's also going to increase nuisance service calls i live in california. We have a lot of power issues. I would like to have a more automated power conditioning system that maybe will automatically reset certain conditions, or maybe you can remotely reset it.

I feel like if i installed phase monitors at every one of my locations. My customers would hate me because i would be out there resetting those phase monitors constantly. Now i realize that, like on some of the icm phase monitors, you can set up some automatic retries and different things like that. So yeah, i think a phase monitor, would be a good thing, but you also have to understand if that customer isn't proactive about maintaining their equipment.

Sometimes it might just irritate them even more so you got to kind of weigh that one out um. So i'm going to mark that question off my list and i will get to the chat here in just a few minutes too. David asks if i have tips actually, while we're doing the chat right now so um. I want you guys to start chatting right now.

My buddy ralph wants me to go ahead and pick a few winners and he's he's from honeywell refrigerants right. I already gave the email earlier and ralph wants to go ahead and send you guys some honeywell swag, so i'm sure it'll be all kinds of cool branded. Honeywell stuff that he has, he sent me shirts and different things, so i'm sure ralph will hook you guys up with different types of honeywell swag, so um, i'm gon na pull up the moderator, bot and we're gon na pick five people. So i want you guys to start chatting right now and i'm gon na go ahead and change it and just start going crazy in the chat right now and the moderator bot is gon na pick.

Five of you guys and i'm gon na name the names out and then what i need you to do, the five of you that win. I need you to send me an email to hvacr videos at gmail.com, okay and uh. Give me your name your address and your phone number and my buddy ralph will get a and also your email address. So my buddy ralph will get a hold of you and get you your swag sent out.

Okay, so go ahead and start chatting and i'm going to pick five of you guys right now, so we can go ahead and do this. So let me um, let me go ahead and pick the first one. The first winner of the honeywell swag is going to be brian goose, b-r-i-n-b-r-i-n-i-a-n-g-u-z-e. Brian goose is the first winner, okay, so i'm gon na write down your name.

You are the first winner: okay, i'm gon na go ahead and pick another winner right now. The next winner is gon na be uh maximum in the hormone. That's a very interesting name. You are the second winner, okay um.

Let me write that down. Make sure you guys reference what your screen name is or your username is on this because uh, i won't know your emails. Okay, so make sure you reference what your screen name is or your thing so maximum in the hormone you're, the second jackson ray you're. The third jackson ray uh - this is for some honeywell swag, that my buddy ralph is gon na, send out jackson ray okay and um.

I'm gon na go ahead and pick the fourth. The fourth person is tyler: hvacr tech, tyler, hvacr tech. You are the fourth winner. Okay, h v, a c r tech um and i'm gon na go ahead and pick one more winner.

The fifth winner is gon na. Be tony. Ask tony ask all right. Remember those of you that i named off, you guys need to send me emails to hvacr videos.

Gmail.Com everybody can stop chatting we're done. We've picked the five winners. Uh tony ask so the five of you that i picked you need to send me an email to hvacr videos. Gmail.Com.

You need to have your name, your phone number and your address and your email address and make sure you tell me what your screen name was because i wrote down your screen name. I'm not gon na know your personal name. Okay, so you need to make sure you reference that um and then i'll get that over to my buddy ralph and he'll. Send you out some cool swag? Okay, so i'm gon na go ahead and get back to the normal live stream chat.

You guys can stop blowing up the chat now and uh. Let's go ahead and get to this and again thanks so much to my buddy ralph at honeywell, refrigerants ralph is the man he's always willing to help everybody out. I'm gon na go ahead and post ralph's email address one more time in here and uh. Let's see what else we got in here, here's ralph's email address again, if you guys have refrigerant related questions, definitely ask ralph.

Okay, all right um! I need to get back to my list, so david had asked me a question about splitting condenser coils. Remember that most common condensers on residential and commercial systems, four tons and up sometimes even three tons - have a double road. Condenser coil, okay and so david had asked about tips when splitting the condensers, because he's afraid he's gon na damage them. Okay, and that is a valid concern.

Okay, because oftentimes these customers put them together and they're rather hokey right um. You really just got to kind of go for it, david uh. You know you, you kind of get comfortable with what can happen and what can't happen. Obviously, when you're splitting a condenser, you know you don't want to open it more than maybe an inch at the most.

You don't want to go too too far. Um, it's not always going to be perfect. You're not going to be able to get in there and get every single thing, but that's where the chemical really comes into play. Okay, so yes, he did also mention that on some of the condensers, the condensers seem like they're kind of glued down to the protective pads on the bottom and yeah.

That kind of happens you just got to kind of pry up on that very carefully um. It's there's not a great way to do. It. Uh usually put something underneath it because oftentimes, if you're on a package unit - and you have to separate it and the package unit's kind of off the ground, you need something to support it.

So that way, it's not dangling in the free air too, so um, i'm gon na get to the chat. Uh, you don't purchase the said. Honeywell swag, you win the said, honeywell swag um, all right. Let's see what else we got in here.

Do old, refrigerant charging cylinders have any use today our 134a hole um yeah. They definitely do. I. I just think that our skid, like the refrigerant charging cylinders like i have behind me, um.

I honestly have never used one. That was not my dad's. That was, one of my technicians gave that to me: okay um, my dad did use them, but i didn't um, so they basically came about when we did not have highly accurate digital scales. Okay, now we have super accurate digital scales.

Of course, these are still good, but it's just not very practical to carry a giant glass cylinder around. You typically would have to transport that in a protective suitcase you don't want to drop it, because it'll shatter there's a lot of potential of damage there, knocking it over when it's full of refrigerant issues like that. So um i mean you know. I think that with modern digital scales, you don't really need those anymore, but you also need to know how to charge a system properly, using hoses and or probes and a digital scale, and to account for line loss and different things like that um.

So i want to cover this one. This is a really interesting question. It feels kind of weird even talking about this okay, but i'm gon na say it so alex had asked me if he can shadow me for a few days to learn, and he says he would be willing to pay me. Okay, so um that's an interesting question and while i'm flattered with that question, it's not very practical and i actually get that question quite often from several people that have emailed me asked me if they could come work with me shadow me pay me all this different Stuff, it's not really something that i could do due to insurance and liability reasons.

Okay, someone riding in my vehicle is only covered if they're one of my employees, so that's kind of a gray area uh. You know i've. I've thought about this and it'd be interesting. If someday, i did some sort of consulting or something like that, where i'd go to them - and maybe you know, would have to carry my own insurance but then ride with them and different things like that.

But it's just not something very practical that i have the means to be able to do anything like that right now. So i'm very flattered by the question alex, but it's just not something i can handle at the moment, maybe someday. We can set something up like that, but it just wouldn't work with my work schedule and stuff. I have an apprentice with me right now.

I typically will have apprentices with me quite often, and it's just gon na be hard for me to to make that logistically work. So i apologize, but it's just not gon na happen. Right now. Um, let's see do sharkbite fittings work with aluminum tubing um.

You would have to read on the sharkbite fitting now. Let me ask you this, but are you talking about the zoomlock max fittings? Okay, those aren't a sharkbite fitting, but they also have the zoomlock max push fittings. You would need to read the known liquor on those. The installation instructions to find out if they work with aluminum honestly, i would think they would, but i'm not going to say yes or no from that.

So you definitely want to read up on that understand that, if you're using a press fitting like the zoom, lock max, fitting and or a zoom lock push fitting there's a lot of prep. That goes into that. If you're using a zoom, lock push there's a lot of o-rings inside of that, your copper needs to be deburred more so on the outside than on the inside, see when we're doing copper, brazing and stuff we're worried about deburring the inside of the pipe to keep Metal shavings down, while we're still worried about the metal shavings, the outside of the pipe, actually has a sharp edge to it. When you cut it and pushing it in on the o-rings will actually tear the o-ring and cause refrigerant leaks.

So, there's actually quite a bit of prep that goes into using a press style fitting like the zoom, lock max fitting or the zoom lock push fitting. You need to use like a scotch brite pad. You need to deburr it. You need to have a depth gauge to make sure it goes in the right length and all that good stuff.

So there's a lot of prep that goes into that all right. Um. Let me get to the question. Can i explain the evac process? Do i do decay test and for how long nemesis nugent? Yes, i do a dk test.

So let's understand this evacuation process right, we're, evacuating, um, uh, air contaminants, leftover, vapor, refrigerant stuff, that's trapped in the oil out of the system. We're pulling the system down to a proper micron level, depending on what we're working on okay, the rule of thumb. If you're working on an air conditioner, you want to pull it below 500, and you don't want your decay test to rise above a thousand okay. If you're working on refrigeration, medium temperature, you want to pull it below 500 and you don't want your decay test to rise above a thousand.

If you're working on lower temperature, like walk-in, freezers and stuff, you typically want to pull down to the 200 to 400 level, and you don't want your decay test to rise over the 500 to 800 level. So the decay test is an amount of time, because, naturally, everything is always going to leak. Okay, the 98 deville. I see that super chat.

Thank you so very much. Please guys. He made a great point smash the thumbs up button. We currently have 341 people watching this and 175 likes, so please smash the thumbs up button.

Getting the views and the likes together really does help out, and i've noticed a significant difference. Since i started asking that okay, it helps the channel to get recognized and everything and you're in a way you're supporting the channel. So please smash the like button: okay, um, so uh the evacuation process. So after you evacuate a system, remember and understand that everything is going to leak.

Okay, you put a micro engage on there, you have it installed properly in the right place. In a best case scenario, your micro engage is not installed in your manifold gauge, set okay or if you do have it installed in there, you need to understand it's not going to be very accurate. It's not the best way to do a decay test or anything like that. Your micron gauge should be independently installed on the system, the furthest point away from the vacuum.

So what i mean by that? Let's just break it down to a residential air conditioner residential air conditioner is the simplest as possible. You have a condensing unit outside you have a line set. You have an evaporator and a txv. Typically, okay, you put your uh one hose on the liquid line and your other micron gauge should be on the opposite line: the suction line.

Okay, if you're doing a one hose pull, you pull all the refrigerant through the liquid line, and it runs all the way through the evaporator comes all the way back and the micro engages on the furthest end away. You understand the furthest end away because you're pulling on the liquid line or the suction line either way, but you want to have the micro engage on the other side of the system, so it gets a true micron reading the furthest away from the pump. If you notice, i would encourage you guys to do this experiment. I've also shown this on videos too, use a manifold gauge set that has a micron gauge in it hook it up, and what you're going to do is, if you understand the process, the process hose right, the yellow hose coming off the gauge is going to go To the vacuum pump, the micron gauge is going to be right after that yellow hose enters back into your mind into your manifold and then the liquid and the suction line are going to cause liquid and suction or blue and red hose are going to come off.

That and go to the system, so the micron gauge is closer to that vacuum pump than the rest of the system. Therefore, that micron gauge is not going to be an accurate depictation or reading into the system. The micron gauge should be the furthest away. Okay, i would encourage you guys to try that watch the micro engage on the manifold gauge set and have an independent micro engage the furthest away and you're going to notice a significant difference.

Even if you do a decay test and let the pressures equalize out once you've done, your vacuum, you're still going to notice that you're going to have a higher reading on your manifold gauge, set okay, but understand that even on a perfect system, you're always going to Have leaks in it? Okay, now we need to make sure that we have the least amount of leaks. There's always the decay test is testing the amount of rise in the system, so you typically want to do a decay test for 20 minutes or longer. Okay, depending on the manufacturer, some vrf systems might make you do a decay test for multiple hours. 24 hours.

48 hours depends on what you're working on that they want you to do the decay test. You can typically see it right away if you do an evacuation and within 20 minutes, if your levels don't rise significantly, then you're probably pretty safe, but it's just a matter of whether the manufacturer wants documentation of a longer decay test. So but that's where a pressure test comes into play too, if you do a pressure test before the evacuation, then you verified the pressure test to make sure that you don't have leaks and then you do an evacuation um. You know, then, that helps you to understand it all right.

Let me um see what else we got going on in here. Does the new field piece micron gave have a decay function on measure quick? No, the new field, piece micro, engage, does not work with measure. Quick - and i don't know if it's going to uh, you guys should probably reach out to jim bergman with measure quick and see if he plans on it. I thought i read something that said he wasn't going to make.

The micro engage work with measure quick at all, but i could be wrong about that anthony. Thank you so much for that super chat that just came through. That is amazing and thank you so much for watching bud. Okay, all right um, so a viewer of mine, i'm gon na protect his name, had asked me a question, and this is a really interesting question.

I'm gon na give you the most brutal and honest answer ever. I have no idea who this guy is okay, but he said he has multiple certifications. He's finished school right, but he for the life of him cannot land a job and he doesn't know why he can't land a job right, uh anthony herrera. Thank you.

So very much for becoming a channel supporter bud. That's much appreciated um, so my my random viewer is wondering why can't he land a job if he has all these certifications and he's gone through schooling? Okay, i'm going to give you the most brutal and honest answer ever bud. I don't know your situation, i don't know who you are, but i'm gon na tell you to look at yourself from the outside. Looking in okay, oftentimes employers, they can't be honest with you especially anthony - are the viewer? Actually, it's not anthony.

That was the person that just became a or just gave me a super chat, but the viewer that emailed me look. He was in california, okay and in california. Employers are massively limited to the amount of things that they can say no to a potential employee for right. So i may not want to hire you because of something i see in your mannerisms or the way that you carry yourself or something i just get a feeling.

It's not a good thing, but you can't you can't do it for those reasons. Okay, because there's discrimination, things there's all kinds of stuff and while i say it's completely wrong to discriminate on someone because of race, color, creed, ethnicity, any of that stuff, of course that's wrong, but i'm just saying in general, maybe they just come across as a sketchy Person, that's not a good reason to say you don't want to hire someone for okay, um! Never will i say or encourage anybody to say anything wrong or to lie when they're doing that kind of stuff, but i'm just saying in the state of california we can't be honest. Okay, so i'm not hiring you, i'm no affiliation with you. So i'm gon na be honest with you right now and say that you need to look from within again, not knowing your story um.

What about you makes you not hireable? Okay, that's that's where i would look if you, if you've applied it, multiple places as nobody's looking back. You need to look at yourself, something about you. I don't know what it is um. Do you not come across as a trustworthy person? Are you just not physically fit enough to work at that company? Do you not carry yourself? Well, i don't know, i don't know what your situation is, but if, if what you say is true - and you have all these certifications - and you think you know what you're doing, but you just can't get hired and you need to look at yourself from the outside.

Looking in there's something going on there bud, okay, so that's the most brutal and honest answer i can give you again. I don't know your situation, but you know that's what i would say all right, um, if you don't have a receiver, is it still necessary to clear the sight, glass, rafael gomez, that is a very loaded question: okay, bud because um an expansion valve no matter. If you have a receiver or not, it still needs to have a solid column of liquid going to the expansion valve, but okay um, sometimes manufacturers beat to the tune of their own drum. So okay be cautious about that.

Now. If a system has an expansion valve and does not have a receiver, that system better have an oversized condenser, because it has to have somewhere to store that extra refrigerant for when the expansion valve opens and closes, because the concept of an expansion valve again right here. As it opens and closes, it requires more or less refrigerant in the system to make it work properly, but the system needs to have that extra refrigerant for it to open and close, it needs to be stored somewhere and that's the purpose of a storage receiver or A liquid line, receiver is a storage vessel for the extra refrigerant when the expansion valve doesn't need it to make the system operate properly. Okay, so you have some refrigeration systems like little reach and coolers that don't have an expansion valve, but they're going to have an oversized condenser that has capacity or leftover space, basically so that refrigerant can back up in that condenser.

Okay. So, no you don't necessarily need to have a sight, glass or necessarily clear the side glass. I would just be very careful raphael. That's where you really start getting into oem specific stuff and sometimes manufacturers they really do beat to the tune of their own drum.

So be very cautious about adding sight glasses to systems that didn't come with them. Okay, be very cautious about that. Um matt had asked me a question when walking up to a new refrigerator. How do i know what refrigerant's in it and that's a really good question and that's going to become even more and more difficult these days when you have all these different replacement, refrigerants right, they're, phasing out 404, 410.

22. Basically, every refrigerant! That's good and works is going out the door and you're basically going to be left with water, and you know they say co2 and propane, but those things are going to bounce too because you know to get propane or r290 you've got to uh. It's a byproduct of oil production right or gasoline production or whatever. So you know they don't like that stuff, they're, getting rid of that and co2 they're talking about cow, farts, polluting the earth or atmosphering crap too, because of co2 levels.

So i mean they don't want co2 either. So basically um you know they don't want us to have anything. They don't want us to have refrigeration. They don't want us to have comfort, cooling or anything like that.

So i don't know that's a whole nother topic. We don't need to get too political on that one um, let's see uh so anyways when matt. To answer your question. How do i know what refrigerant's in it there's a couple different things? You can do number one look at the data plate: okay, um, knowing what oil is in.

The compressor doesn't really do very much these days, anyways because typically you're gon na find polyester oil in most compressors, and you can have all kinds of different refrigerants in it. Right, you can have r22 alternatives running in systems, so look at the expansion valve the metering device if you're dealing with the refrigeration system or lean on the manufacturer. That's why it's so important to label your equipment if you're doing refrigerant conversions make sure that you help the next guy out. Now, i'm going to tell you guys a cool little thing.

I don't think i'd get in trouble for this, but i ran into a situation where i accidentally added nitrogen to an air conditioner and i don't know if i can make a video out of this or not.