Hey everybody how you guys doing this evening - hopefully you guys are doing well. I posted that picture of the spore'ln. That's their thing. They've been posted on social media they're, trying to give away a bunch of these beer, steins, of course, that I have apple juice in its to celebrate their 85th anniversary.

What you want to do if I've set it on social media and stuff too, but what you want to do is tags Portland, whether it be on Twitter or on Facebook, with the hashtag spoil in 85, so the pound signs spoil in 85 and then just take A picture of any spoilin products: they there prefer more like older, memorabilia and stuff like that, but yeah do it. You get entered into a contest to win one of those beer mugs that they had sent me a while back so pretty cool. It's super easy and I think they give away a couple week or something like that. Yeah, if you go to spoil in social media, they'll, explain to you.

You know all the details and stuff like that. It'll have all the rules, I'm pretty sure it only applies to United States. I don't think they're gon na be shipping internationally for those of you that are watching in other countries. Unfortunately, you know that's just one of the things and how it goes because the shipping and all that good stuff, so you know in doing a giveaway that I did a long time ago.

I realized something that it's like a nightmare. If you want to do a giveaway and ship internationally, because, like other countries, hey mister Johnny boy, thanks very much man, other countries like they they do. If you do like a giveaway, they some of those countries consider that gambling, it's weird, it's so weird and there's like all kinds of trade laws and different things. So I had done a giveaway a long time ago for a spoilin BQ kit.

It was one of the first things I did when when spoilin became a sponsor of mine and man, the stress about. Given that thing away and hoping that, because I I never specified in the very beginning that it was only gon na be for the United States and it was just like a mess but anyways yeah, it's such a trip. You know when you start doing these streams and everything you start to realize all the rules and different things that you have to follow, and you know when you start filming YouTube, videos and stuff. It's a trip figuring out.

You know music playing in the background and it's it's like a whole mess trying to film videos. I have a hard drive full of videos that I can't show because there was, you know, audio. In the background. There was music playing or something like that, and, and you know I have to basically narrate over the videos and it's just a mess like man but anyways.

It is what it is hello to everybody. That's coming in. How are you guys doing this evening? Hopefully, you guys are all doing well fluke. 196, thanks, so very much you guys, the super chats they're awesome and I'm so blown away that you guys take care your own money and you know that's that's awesome.

Thank you guys very much. I'm super humbled by that Albert Rodriguez. You asked me a question. No, unfortunately, I do not do any boiler work.

I am a refrigeration, air conditioning exhaust fans. I do do the heaters and the air conditioning units, but I don't do any hot side work and I don't do any hydronic work as far as boilers and stuff like that goes so I'm specifically refrigeration and air conditioning. That's another thing too. It's very interesting because I talked to some guys, you know all over the country.

I shoot. I get comments and stuff like that from people all around the world, but I talked to gentlemen all around the country and they they talked about. You know the way that they do things in their companies and I do find it very interesting that for those of you that are in Texas - maybe you guys can verify this. But you know: there's service companies that strictly do refrigeration and no air conditioning work.

And that's very bizarre for me because here I do air conditioning and refrigeration, but I don't do hot side work, which is you know the next step for me and there's a few companies that do do hot side work but for the most part, hot side is Usually a different company and that the hot side is like fryers and grills and cooking appliances. The only thing I'll work on is I'll work on, like you know, patio heaters, you know those infrared radiant heaters or whatever I'll do those, but that's about the the farthest. I go into that kind of stuff and then obviously I'll fix. You know gas-fired and heaters inside rtu unit or something like that, but very interesting, so hello to everybody, that's coming in how you guys doing I'm doing good.

Thank you, hey Isaiah. I see you there bud got a couple things I want to cover and then obviously, as usual, I want to get to some your guys's chats, but something you know that um that I wanted to talk about and it's it was a really good suggestion and it Was hang on just one sec, I'm just looking at the chat here, real quick and it was a suggestion by HVAC our vlogger, which is Ernesto. He also has a YouTube channel. So I definitely check that out guys if I had your link here, but I would post it, but I don't but you'll see him he'll post in here just click on his name and then you can go to his channel from there or nesto post just post A comment of anything right now and then that way and hey Rick's in here too Rick started posting videos again too, with HVAC our survival there's all kinds of good youtubers in here guys.

So I wanted to talk about YouTube in general and social media. Okay. So my outlook is a little different than everybody, so you know when I started making these videos. I originally posted these videos for my own employees, and so, if you notice in my very early videos and even still to this day, I tend to talk to my employees - and maybe you guys can see that in the way that I'm talking in the video like This is how we want to do it.

This is what we're going on. It's, not that I'm telling you guys how to do your jobs, it's that you got to remember. First and foremost, these videos are from my employees and then you know lately I've been kind of tailoring more towards you guys than my employees and my employees understand that. I explained it to him.

You know, but you know I started making these as a training aid and I never really planned on making these videos public. Ok, it was more or less. You know just posting these videos with you know. This is an interesting thing that I ran into, and I wanted my guys to see it because before that, what we would do is we meet our particular shop.

Everybody meets at the office every day. First thing in the morning. You start out at the office locally. Our luck, luckily, everybody lives close to the office, so everybody meets at the office and then we just kind of you know divvy out the calls and go from there, but we would find ourselves.

You know I would be discussing hey guys. I ran into this really interesting call and I'd be describing it to him and then quickly. You know I kind of realized hey. I could post a little video on my phone and then I posted him to YouTube and made them unlisted, so unlisted means that I can share them via email, but they couldn't see them to the general public, and so I would share like interesting so like the First, three videos that I posted on my channel where unlisted videos at first and then I just showed them to my guys and then I quickly made them public and when I made them public, you know the channel just did what it did and just kind of Blows my mind, but I am not especially back then, and that was about two years ago year and a half ago.

I did not believe in using YouTube videos for learning how to do what we're doing. I honestly still to this day believe in a proper apprenticeship working for a company. Now I don't necessarily mean a union apprenticeship, even though I do agree that the Union in the past has given great education. But I believe that you need to learn via getting your hands on things and working with someone and being taught properly.

But my my opinion on that has kind of changed in the the way that people have been viewing my videos and it's very interesting. Okay, so I didn't agree with people watching YouTube videos and to an extent, I still don't agree with them. You know to learn how to work in this, this trade, basically, okay, I still think you need to go to trade school. I still think you need to get a proper apprenticeship, but then I think these videos are a great aid to that.

Okay, but you guys will probably notice in my videos I don't show the very beginning the whole process all the way through. I don't show you how to set my acetylene in my oxygen on my torches and different things like that. I do not want to be a DIY channel, but I do agree that, from the way that people have been responding, that I understand that the younger generation needs these videos. Okay, that's just the way that they're gon na learn.

I still think that they're learning in the field too, but it's it's very interesting to me, because I came up in a time before YouTube and before social media general. The first social media that I had was MySpace and I thought MySpace was really cool because you can put music on your anyways, I'm going off on a tangent, but that was old school, but it's just very interesting. The way that things are going, you know, I never really could I couldn't foresee how social media is changing our trade for the better there's, also some trolls on social media. So, yes, it does cause problems, but these Facebook groups guys they are really cool, because you know, I still agree that you need to talk to your office.

You need to talk to your service man when you need help, but it's always great to to be able to go onto Facebook in one of the cool groups or whatever you know, that's out there and say: hey guys. I have this problem. This is what I'm running into. What do you guys think and you get thousands of people that are willing to help what a trip right? What kind of resources you guys have nowadays it's awesome and for those guys that are older than me, I'm 36 for the guys that are older than me that don't understand social media and different things, man they need to get on the bandwagon, because even they can Still learn from this stuff, you know there's tons of great guys out there making youtube videos that you know show how to do things now.

I will say: there's also some really bad youtubers. Also, okay, you guys need to make that decision. I stumbled across a channel recently that has 3000 some odd subscribers and I'm watching their videos, and I will not mention whose channel that is it's. It's not an.

You know one of the really popular channels, but I'm still blown away with the videos that this person is making, because what they're showing is completely incorrect. Okay and that's not the proper way - and this is a younger person - and you know I'm a little worried. So we do need to be careful in what we are watching on YouTube. What we're believing you can't just believe it, because it's written on social media or because it's on YouTube so be cautious about that stuff.

But I do agree that this is a great valuable resource and I think that you know this is only gon na get better where I see the future going with this trade and I'm still waiting for the moment. For this to happen, it's getting better and better. With the technical support, but when it's gon na be amazing is when we have some kind of glasses that have a amazing camera in them that can stream live. That's when it's gon na be awesome right now, there's all kinds of different glasses out there that have cameras in them, but nothing is of high quality because I've looked into it or and or affordable, but even still the ones that that are out there right now Are very, very expensive, such as, like Google glass, like that kind of concept, where that's really gon na help is that's gon na be able to put you know, a more experienced tech on the other end, preferably not sitting in the office, but maybe sitting in the Office and being able, you know, a younger guy comes up and says hey.

This is what we're running in you know, and then he can turn on his glasses and show the other person on the other end right now we have the ability to do that with our phones and even at my company we do that. We all have Samsung Galaxy phones and we everybody has the ability of using the Samsung, whatever software inside of our phones to go, live on there. You know. So if someone just calls me - and they say - hey I'm looking at this - and it doesn't quite sound right I'll - tell them hey just turn your camera on and they click a button on their phone and then it goes live.

And then it comes across to my phone and they can show me, but the downside to that is they still have to hold their phone. So it would be awesome when we get to the point that we can have some sort of glasses to be able to interact in here. So the future's there it's almost here. I know it is - I wouldn't be surprised in the next year or so.

If that technology doesn't come out, but we got to wait for it to become you know relatively inexpensive, because nobody wants to pay a thousand dollars for a set of glasses right now. But that is very interesting where this trades going and how social media is really helping it. You know, if you get into some of these good groups, you know you got to stay out of some of the bad ones. There's there's a lot of nonsense on some of those Facebook pages too, but there's some really good ones.

So forgive me guys I've kind of been ignoring the chat. So if you guys have posted questions, I'm not really gon na scroll back up post them again. Remember, if you guys are going to put questions put them in caps, lock, okay, I do not have a huge agenda to talk about today, so I definitely I'm gon na rely on your guys's questions. So definitely put them in there and I'll see what I can do.

So I'm just going to kind of scroll through here and let's see exactly yeah and you know alright. So I want to address something with my video that I uploaded the most recent video about the carrier unit with the plugged-up metering device. Okay, the plugged-up metering device is like an a curator style metering device. I don't know if that's quite what carrier calls it, but it's their fixed, orifice metering device.

It has about eight circuits on it and it has a small piston inside of there. So I diagnosed that the unit had a plugged up metering device. The coil was halfway frozen up, it was either gon na be a low charge or a metering device issue, and you could actually see on the unit that we had extremely high sub cool. So it kind of indicated that someone possibly had overcharged the unit which is very common on those.

Sometimes people think I came. My suction pressure keeps going lower. Let me add some more gas and the subcooling just climbs. You know there is methods that people have tried to go ahead and clear those metering devices and what you can do is you can remove all the refrigerant out of the system.

There's a couple videos on there on YouTube about it. You can just look up clearing a carrier fixed orphis metering device. I believe Ulysses Palacios has one on the train unit, because Trane also uses that fixed orphis and then also hack, free HVAC has one two on cleaning them on the carrier units. So if you want to try to clear them with nitrogen and a torch, what you can do is remove the refrigerant backflow of the nitrogen.

So that means push the nitrogen through the suction side and let it come out the liquid side, okay, and what you can do is try to blow the crap out of the liquid line. So you can pressurize the system up to a really high pressure, usually about 200 psi. You don't want to go over the evaporator pressure limit, whatever that is so 150 200 psi. Whatever the the maximum pressure is on the evaporator and then what you can try to do is take like a map, gas torch or you can use your brazing torch.

You got to be very careful and you can try to heat up the metering device and the theory behind that is, if there's some kind of a wax buildup or something like that. Maybe you're gon na melt it to where the nitrogen can push that you know wax or whatever it is out of there. In my case I actually tried that I didn't get it on video, but it didn't work. So I've had not very good luck, trying that with the carrier units trying to clear those metering devices, in my opinion, once you have a plugged up metering device for the most part, it usually means your oil is contaminated.

Somehow and or someone didn't braze with nitrogen, and they really really did a bad job, but I'm gon na tell you guys something the whole brazing with nitrogen thing. I believe in brazing with nitrogen, it's very important, but I will say that I you know for the first 10 years of my career. Probably you know 13 years of my career. I never used nitrogen with brazing now.

Was it correct? No, but I was never taught to do so. Okay - and you know I've mentioned many times before, I was taught old school methods where you know beer can cold and all those different things - and you know I after some time kind of learned, the those weren't. Quite the right ways - and I started doing some reading myself and that's when I started realizing hey. We need to use a micron gauge, hey, we need to braise with nitrogen those kind of things, so I will say that you know.

I agree that brazing with nitrogen is very important, but I also agree that you know it's not as quite as extreme as some people make it to be. I still to this day try to braise with nitrogen whenever possible, but there's instances where I don't and I usually don't plug up metering devices. I don't ruin expansion valves, I don't ruin dryers. Okay.

I try to do it as much as possible, but there's times that I don't okay, I am NOT a perfect technician. I make mistakes, just like everybody else. In fact, most of my videos are, you know, examples of the mistakes that I've made and I may be teaching you guys or you know, bringing up something. That's a very important lesson to be learned and it's usually from a past experience of me messing something up.

Okay, so anyways, I tried to clear that metering device. It didn't really help. So I'm recommending to the customer, I basically to replace the fixed orifice metering, header, the whole header itself, and they kind of held off on the quote for now. Just because we're going into the fall and they're not too concerned about the air conditioning unit right now, but they will in the next month or two they're gon na end up calling me back, because you know it's not going to get super cold out here in Southern California - and we still are gon na rely on the air conditioning unit and that unit is just gon na ice up again and it's just gon na start leaking water down into the building, and you know they'll call me back out, so you know I just Kind of play the game - that's just how you have to go when you're working on in chain, restaurants, so um, let's see what I'm missing in here, yeah HVAC, rookie beer kind cold, was what you were taught in school.

I mean you know. I was taught a lot of that stuff too, so yeah and some nesto HVAC our vlogger says there's times that he doesn't use nitrogen. You know. I really really think that you need to try to use it as much as possible, but sometimes it's not practical, and I will tell you one instance where I don't ever use.

Nitrogen is when I'm working on cap tube systems. Okay, because what you're gon na find on a capillary tube system is when you're trying to push nitrogen through the system, there's going to be a large pressure drop and there's going to be a pressure buildup on the the inlet side of the capillary tube. So you're going to get a high pressure on one side, so, if you're to braise a dryer or something like that and you're trying to pressurize that system with nitrogen and flow, even just flowing the tiniest bit, will still build a pressure drop. So, whenever I'm working on capillary tube like reaching coolers and stuff, I do not use nitrogen because I find it to be problematic.

My personal opinion there's no scientific explanation behind that. That's just my opinion on that. Alright, let's see what else we going on here: okay, okay, so just Russ asked me and that's another good question too, about converting that system to an expansion valve, and that is something that I would consider doing. Unfortunately, my I've reached out to my carrier, rep, my carrier, distributor and they've, told me that carrier does not offer an expansion valve retrofit kit.

So if I was to try to retrofit to that to an expansion valve, I would have to do all the math myself. I've considered contacting spoilin because I do have contacts there to talk to them, but I haven't gone that route. Yet I know that if you're working on a train unit train does have a TX v retrofit kit for their fixed orifice metering devices for some of their units. But unfortunately my my research has shown me that carrier does not.

So I would consider doing an expansion valve and I would love to do it, but I just would have to do all the math and that's just not something that I've done as of this moment yet so we'll see. Maybe I will all right: let's see what else I'm missing here. Chris Keith has a good question. So let's see what okay, how do I unfreeze all of those joints at the same time? So that's a really good question.

Chris Keith had asked that so I'm assuming you mean de unbrace, basically so when you're changing those fixed, orifice metering devices, what you're actually gon na do it comes as a complete header. I wish I had a picture that I can show you but the entire header, so that means that the main pipe so basically there's gon na be about a 5/8 inch pipe running up and down. That's the header, seven one, six appliance guy! Thank you very much. Man, I really appreciate that super Jeff, so there's a main header and then off of that are multiple three-eighths inch lines and there's a metering device in those 3/8 inch lines.

So when you go to change that fixed orifice metering device, there's a couple different ways, you can do it the easiest way, the the best way to do it, but it's not always practical, is to go ahead and remove the evaporator and in order to remove the Evaporator, what I would typically do is go in there with a set of tin, snips and cut all the way up against the header, because the new piece is going to come. You know with metering devices and about a two-inch 3/8 inch pipe, basically, that you would be able to solder or braze back on to the evaporator. So in a perfect world I would cut all those with a tin, snip or tin. Snips go down the line and then take the whole evaporator out and then cut them again if you need to attend snips and get in there with some tubing cutters.

So it's not a perfect little situation. It is rather difficult. You know to get in there. Sometimes you can't remove the evaporator, so you got to kind of do it in place, so you'll definitely have to remove the top to the unit and kind of climb in there, but um yeah, so you're gon na try to cut most of it out with tin.

Snips before and then just use the new piece as a fixed assembly, you can either swage the new piece or you can put couplings on there. So all right, let's see what else we got. Let's see what I don't know what you're saying there in estou. You hope the YouTube account you were talking about is not.

I don't know what that means. I don't know if you're talking to someone else so just go okay, so so I covered that Ryan Hamilton. Thank you very much. I really appreciate that, but thanks for the super chat, so Zach sure, oh I'm hoping I'm saying your name correctly.

I think the ex would probably be silent. You said have I heard carrier has declared that our 4 5 4 will be their new refrigerant. As of 2023 and York also so yeah, I have heard that there is a new refrigerant coming out and I believe I have heard that carrier in New York have talked about it. I don't remember if it was the same one, I'm gon na take your word for it that it was.

I believe that it will be yeah, it's the r410a replacement. I have heard that I've read some press releases. I believe Honeywell. I believe it's one of the Solstice refrigerants, isn't it I think Honeywell makes it so yeah.

I have read about that. It's interesting, you know, everything's changing you know. All the new refrigerants are gon na be replaced all the 400 series refrigerants are going away. It's a trip.

You know this kind of segues curious, HVAC guy, I'm going to dress that in just a minute here, but don't let me forget, try to post it again if a minute, if I don't um, if I don't answer that and Nando five three, oh do I ever Plan on doing some kind of HVAC training class - I don't know if I'd be qualified to do like a HVAC training class. I am doing. I am gon na be a Brian or seminar in Florida. A couple days before the HR Expo he's gon na be doing a big training seminar, where he's gon na have like all kinds of super smart people, much smarter than I doing like discussions and different things and that's with HVAC school.

I will be at that, but as far as a training class myself, I don't know man, I really don't know that I would really do a training class, so I want to segue into well. I'm gon na answer your question there bill first, so curious, HVAC guy asked what sort of equipment do I see balance port, TXV, Zin, so typically you're gon na see a balanced port TXV on anything that has multiple circuits. Essentially, okay, that's what you're mostly going to see a balanced port on, so if it has multiple circuits going to the evaporator feeder lines going to it, you know if it's not just one 3/8 or 1/2 inch line going to it, then you typically are gon na See a balanced port on there. So if I was doing one of those carrier units - yes, it would be a balanced port expansion valve for sure.

Alright. Ok, the next question that I want to earthing that I want to talk into real, quick, oh yeah. Definitely ernesto hvac of lago yeah, so r22. I had an interesting question on YouTube.

Someone had posted a comment and guys there's so much miss information out there and I'm gon na blame a lot of the supply houses on this miss information. Ok, I don't I'm not blaming every supply house, but there's a lot of supply houses out there that are given people the improper information. Unfortunately, in our trade, we tend to lean on the supply houses. For you know, technical information and industry information.

Okay, you guys need to do the research yourself. You need to do some digging and figure out. What's true, and what's not true, ok, so as of 2020 - and this is a very common belief - is that our 22 is going to be illegal. That is not completely inaccurate, but I'm just going say it's not true.

Okay, so r22 is gon na, be illegal to import and/or manufacture in the United States, anymore, okay, as of 2020, but here's the cool thing: it's not going to be illegal to use our 22. Okay, it's not gon na be illegal to put new r22 in a existing air conditioning unit to retrofit to continue to use our 22 is not against the law. There is stockpiles of our 22 tons and tons of still new r22 and reclaimed and reek leaned. You know refrigerant that manufacturers have stockpiled.

We will have plenty of our 22 for the next coming years. Okay, yes, the price might go up a little bit, but what's interesting about 3-4 years ago, the price r22 went up to five six hundred dollars, a jug for a 30 pound jug guys it's almost half that right now it's dropped way down. I think I might even gone above $ 600. It's gone way down right now.

Okay, r22 is not gon na be illegal to use. The question that I had was on my particular unit, one of the units that I had fixed it, or maybe I topped off the charge or something the person was asking me. You know why don't you go ahead and talk that customer and to replace in that unit, since our 22 is illegal and that's you know that is not true. Our 22 is not illegal.

Unfortunately, there's a lot of people out there pushing that, and that is not the truth now you know, is it in the customers best interest to consider replacing the unit? Sure, okay, but unfortunately, that's not always practical. Okay people can't always just go and replace their units. So, let's make it completely clear right now: r22 is not gon na be illegal. Okay, it's only gon na be illegal to import into the United States.

And/Or manufacture, new refrigerant within the United States. That's it okay, so we can still use it. I'm still gon na use it. I still use it to this day currently right now, I do not use any r22 replacements.

Unless a customer comes to me and says, hey, I want to use them, I'm still using r22 right now, I'm just gon na throw out a name right now. One of the more popular r22 replacements is blue on. I think I've never used it. I have nothing bad to say about them, I'm not going to talk trash, but I was at a and they had the the price of blue on on the board and it was significantly more expensive than a brand-new drum, a --, the of our 22 right now.

So I'm not using any of those r22 replacements with that being said, I'm not saying it's bad, I'm not saying that I'll never use in our 22 replacement, just at this moment in time, I've chosen not to use them. So I will say if anybody has any questions about the new refrigerant restrictions, any of the new stuff that's coming out. I have a contact at Honeywell, it's Ralph. I don't know if he's in here today.

I haven't seen him yet, but he's a great resource. Ralph Vergara at Honeywell and he's coming here many times he's always supporting this stream. I'm gon na put his email in the chat right now. You guys can feel free to contact Ralph with any refrigerant related questions you have.

He can, you know, give you ideas on anything that Honeywell manufactures. He will even send you documentation, showing the laws and different restrictions and different things like that, so I'm gon na go ahead and post his email in here right now right there feel free to take that email down and send Ralph any of your questions that you Have he's a really cool guy and he's usually gets back with you really quick? Okay, let's see what else I'm gon na see what I'm missing here so HVAC girl also. Is there anything besides cutting brazing it into the system? I'm gon na go back up to your question here: HVAC rookie! Okay, if I do a change over piston to TXV, how does it change the charge? That's a very good question, HVAC rookie! So if I was to go ahead and remove the fixed orifice metering devices and/or the accurate or header yeah, you would change the way that you charge that system. You would charge it by subcooling, so you wouldn't have carrier giving you documentation saying.

This is how you should charge the unit, but what you're gon na do is you're. Typically gon na rely on your you know: yeah 10 degrees, subcooling, or something like that. Coming back, I would just research find out, you know, and basically just just charge via subcooling. Now, if you're gon na put the TX V in there, I am gon na lean on I'm a very big fan of using measure quick.

So I'm gon na lean on measure quick and you know kind of input, all my numbers into there and it's going help. You to properly charge that unit okay, so yeah, it definitely would affect the refrigerant charge. I would think that you would still use. I would start with about 80 % of the charge and then kind of go from there, so I would basically weigh in 80 % of the charge turn the system on.

Let it stabilize out check the vitals and then adjust the charge from that point forward. Is what I would typically do so? Okay, let's see what we got going on, what else? Oh wait: it dropped because of supplies flood. Yes, they did so okay, so I'm gon na go down here guys. If I missing your questions, please please please put them back in the chat again.

Okay, so HVAC rookie! You asked about 421a. Personally, I don't use any alternative refrigerants right now. If I had to make a decision like if someone said you need to use one today, I would probably use four o7c, but I would have to do an oil change. If the system had mineral oil, I'm not a fan of mixing oils doing any of that.

Funky stuff other people can do it, I'm not judging you guys for doing so. But if I was gon na do a 407 C retrofit, I would completely change the oil in the system and obviously change as many of the gaskets and o-rings and seals as you can so Ernesto. You said you were asked. How come you carry so much refrigerant? Jugs, you explained it's because you do so many types of units since we work in a lot of the same equipment.

How many do I carry so? How many refrigerant jugs do I carry? I actually don't carry that many. I carry a jug of our 448, a which is the new 400 for a replacement. I also carry a jug of 400 for a. I carry 410 a 130 for a and r22 yep and that's it so I don't carry any of the arch one R 12 replacements.

I do have some 409 a at the shop, but I don't use that stuff anymore yeah. So that's pretty much it! Okay! I don't carry any of the alternatives and I usually have two or three recovery cylinders, typically to recovery. Cylinders in my truck usually carry like one or two depending it like. If it's summertime, I usually carry two of the four tens and two of the 22s.

Sometimes I might have to 404 a is. It just depends on how many, how much room I have in my tank, racks and stuff so HVAC rookie. So do I need to completely remove the header fix to the TX yeah? You would completely remove the header, because the header still has the metering devices the fixed orifice metering devices so you'd have to. If you were at a retrofit to a TXV you'd have to completely size the distribution tubes properly.

They need to be the right length and the right in inside diameter. Then you need to put a proper distributor on the expansion valve and then you need to put the proper expansion valve in basically so yeah. You would have to remove the header completely and then braise the distribution lines directly into the evaporator coil. You typically want them to insert into the evaporator coil about four to five inches and then braise them shut.

Basically, so, let's see what else I'm looking at my thing right now, okay, Kenny, Edwards, unfortunately bud. I would not be the best person to explain unloaders. I don't work on systems with unloaders very much. Essentially it's a capacity control.

It helps you to stage down a compressor basically, but I do not know much about setting them and what pressures to set them out. So I'm not really going to go into that one too much. So I apologize, but so blue word. 13.

22. Is there any reason to find insulation on the liquid line at the compressor, specifically on a small one-ton RV? Oh so yeah. If you know it's not the end of the world to put insulation on a liquid line a lot of times, we will put insulation. So you specifically said on an RV okay, so I'm assuming that you mean on the liquid line.

So, typically, if you have something that is sitting in the direct sunlight like specifically on the roof of an RV, it would not be unheard of to put insulation on the liquid line. Okay, because, essentially you don't want that liquid line getting any hotter than it needs to okay, you want that liquid line to be as cool as possible, basically so yeah. Sometimes we will put insulation on them, especially if you're running through an extremely hot attic. It is, it is possible and feasible that someone would put insulation on there.

So if you have something sitting on the Sun, the top of an RV yeah, I wouldn't be completely blown away to see insulation on a liquid. Now do I install systems with insulation on the liquid line? No, I've never ran into an instance where I needed to, but I have read some information on it and I do agree that it is a good idea. If you're working in a weird situation, where you know the ambient air or the sunlight or something like that. Might increase the temperature of the liquid line? Have I ever Oh Dean Mohammed? Thank you very much man.

I really appreciate for that super chair. That was really cool. Is there any? Let me see, should you have separate hoses for r22 and for 10a Jason Albert okay? So here's the deal refrigerant hoses, I'm gon na, be honest with you guys. I do not separate my refrigerant hoses.

Okay, I do not have a different set of hoses for 410 and a different set of hoses for r22. No okay, it's not practical! For me. I work on too many different refrigerants. I can't carry a separate set of gauges.

Is there some truth that you can have some oil contamination? Yes, there is oil contamination is not as severe as people have made it out to be. Okay, when, when polyester oil became popular in the mid 90s, when it was coming out, there was a lot of fear and infamous information out there via the supply houses, saying that you can't mix any POA and mineral oil, it's not the end of the world. Now, it's not perfect! No in a perfect world, if you had, if money was not an issue, it would be best if you had a separate set of gauges for every refrigerant in every different oil, but that's not very practical. Okay, so don't stress about it! You don't need to have that many different sets of gauges.

I carry basically one main set of gauges, and that's all that I use okay. Just make sure that you purge your hoses. You know if you find a massive amount of oil contamination, then blow them out with some nitrogen, but don't sweat it. It's not the end of the world.

Let's see what else, what should a residential a/c tech study up on before trying to get into refrigeration in Southern California? Anthony asked that question? Okay, you need to understand refrigeration period. Okay. Now, I'm not saying that you need to understand every single component in a refrigeration system, but if you understand how a compressor works, if you understand how the condenser rejects the heat and how the evaporator absorbs the heat, that's refrigeration, even though it's with high temp on An air conditioning system: okay, if you understand the basic in symbols of refrigeration, the expansion valve meters, the refrigerant the evaporator, you know, absorbs the heat and then the whole cycle repeats you're, gon na be okay. The refrigeration difference is going to be basically there's some different controls involved in different temperatures.

One thing that I would suggest if you're going towards the refrigeration side, but even in the air-conditioning side too, we need to get away from talking about pressures and, more so looking at saturation temperatures if you're going to be getting into refrigeration. You also need to understand the refrigerant Glide. That's the difference between the dew point in the bubble. Point: that's you know, so you need to understand.

As we get into these new alternative refrigerants, these replacements are 448 a which is the r44 a replacement. It's one of the many, but it's the more popular one, has a huge refrigerant Glide that changes things we need to start talking about, not just evaporator temple. We need to talk about the midpoint. Okay, that's the middle of the the the dew point and the bubble point basically on your temperature chart.

So there's all kinds of different stuff that you do need to research, but you need to have some kind of a background in electrical. You need to understand basic electrical skills once you have a basic electrical and basic, you know understanding of the refrigeration cycle, yeah sure it's a good idea, go ahead and move on into the refrigeration side, move to a refrigeration company, but be honest and upfront with them, And let them know that you do not completely understand how commercial refrigeration, whether it be light or heavy industrial works, and you know they'll train you and move you on up. But if you have a basic understanding of the refrigeration cycle and a basic understanding of electrical, you can learn a lot. I would highly suggest that you look into a book called commercial refrigeration for air-conditioning technicians, bye, dick worse, that's di c KW.

Irz. Look that book up. It will greatly greatly help you, okay, it's basically a book to teach an air conditioning technician refrigeration, so it basically covers the different controls and different components that a refrigeration system might use that you wouldn't see necessarily in an air conditioning system. Okay, hopefully that answers your questions.

If I don't answer any of your guys's questions feel free to send me an email hvac, our videos at gmail.com. Okay, I don't know if the nightbot has completely started. Posting I've got a new movie in the chat, so it should keep an eye out for the nightbot guys. There's a new movie new movie quotes they're gon na be posting in there.

Let's see if you guys can get that one, this one might be a pretty easy movie, so it should post here in just a few minutes. I think I had it set for like a 28 minute timer or something like that Mel 904. Any recommendations for records for refrigerant handling - that is something that I probably don't do enough of. You know, there's some weird technicalities about how we're supposed to record and save logs of our refrigerant handling stuff.

I will say that there is an app out there and unfortunately I cannot remember the name of the app gosh. I will try to think of it. Maybe on the next live stream, there's an app that completely handles all the refrigerant record-keeping and everything like that guys. Mmm, Jason, ores, but I believe that's how you pronounce your name he's with ESCO.

He I believe he had something to do with the app, and I cannot remember the name of it for the life of me right now, but I'll do some research and maybe try to bring it up again. It might help some of those that want to try to keep track of all that stuff yeah guys. If you have questions, please, please try to keep them in caps-lock so that we can make sure we get them. Okay, so is it ever possible to change oil on a compressor? Mr.

Johnny boy? Yes, it is okay. It is not quite as easy as you would think, though, to change an oil on a scroll like on a small air conditioning scroll compressor, what you would HVAC Ricky thanks very much man for that super chat. That was really awesome of you. So to change an oil on a scroll compressor or even a just like a hermetic pot compressor if it doesn't have an oil port on it.

What you're gon na need to do is basically tip over the compressor. Pour the oil out put the compressor back in in order to do that. You're gon na have to unbrace the fittings. It sounds like a pretty big process right.

Sometimes it might even be more economical for you to go ahead and replace the compressor if you're gon na go that route. That's why I'm not a huge fan of these alternative refrigerants. Now I have heard some people saying just a pour some polyester oil in there and call it a day. I've heard people say that it works for me personally, I'm not going to do that.

If we work on some of our bigger refrigeration compressors, we actually have oil ports on there, so you can just slightly pump the system down key the suction side. Under pressure. Put your gauge on there your hose on the oil port and drain the oil out of the system. That's the easy ones and if you have a semi hermetic compressor, those are super easy because you can either they have an oil port and or sometimes you can put a little mechanism in there to pull the oil out too so, but yeah the easiest way.

You know if it doesn't have an oil port, it's just tip the compressor over and pour it out so which can be kind of difficult. So, yes, okay, so do I use the Copeland mobile app? Has it ever given me the wrong resistance reading line to line for a compressor? I don't know that I've ever seen it give me the wrong resistance reading, but I'm not gon na say I mean it's an app, so there's always room for error inside there. But yes, I use the Coppola mobile app very often it's a great app and I really really recommend it. I'd be very interested zi2 if you can send me an email in your instance where it gave you the wrong resistance numbers, because I can contact Copeland.

I mean you can do it yourself too, but send me an email with the specs with the model number and tell me what you found I'd be very interested to read about that. So my email is HVAC our videos at gmail.com. So all right, let's see, can I share the link for the book yeah. I can try to do that here so hold on just one second, and let me try to pull that up.

Let's see if I can pull that up. Actually, there's a link inside my my um, the the show notes of this video guys there'll be a link inside the show notes of the video. So when the video posts on YouTube right after this stream is done, go to the show notes of the video and there's going to be a filial link for the commercial refrigeration for air conditioning technicians book and actually I'll just grab it and show it to you Too, all right, so this is the book. This is the newest version.

I believe that they might be working on another one right now, but it's called commercial refrigeration for air-conditioning technicians, it's published by cengage great great book. It's a couple hundred bucks, but it's definitely worth it. I wouldn't bat at a you know at one of these things, it's it's a great great book. I had actually given one of those away a while back.

Maybe I'll look into doing that again I'll see. If I can come up with a copy of that book - and maybe we can do a giveaway on one of those, so all right - let's see what else I got in here, so suction dryers. How long do you leave them on after the first change out, HVAC rookie, hey Bill, curious, HVAC guy. I want to talk about the conversation that we had about your video.

I want to kind of address that a little bit too. So don't let me forget that. Okay, but so HVAC rookie suction dryers. How long do I leave them on after the first change out, so I'm gon na leave, I mean be honest with you: there's nothing wrong with leaving a suction dryer in the system permanently so long as it doesn't have a major pressure drop across the suction dryer.

Okay, the biggest thing is, is the pressure job, okay, and what that can do is that can affect oil return going back to the compressor. If you don't have anything more than like a two PSI pressure: job 1 psi pressure drop you're good to go. Ok, but my important thing is, is that you need to accurately size the suction dryer, because oftentimes, if you have a very, very bad burnout, you can create a problem. So I have brand new systems - refrigeration systems, it's very common - to see a refrigeration system that comes from the factory, with a suction line, filter dryer on it.

Okay, there's also a suction line, filter, so keep in mind, there's a difference, but suction line. Filter dryer is more dense and does some more filtering and has moisture removing capabilities, so I've left them in the system permanently so long as it doesn't have a pressure drop across the dryer. Now you want to monitor his system in a perfect world. You want to go back multiple times.

Checking the pressure drop every couple weeks, as the pressure drop increases. Obviously remove the dryer put a new one in the moment that you stop seeing pressure drops. You know, I guess that would be a time if you wanted to go ahead and remove it. You could, but I just in there sorry, hopefully you couldn't hear me drinking right there, um, so yeah I'll leave them in all right.

Let's see what else HV is here: North dude thanks very much man. I really appreciate you guys are awesome with you super chats. Thank you very much. Okay, LSX mode.

Did I go to school for heating and/or air, or did I learn from a mentor okay? So I grew up working for my father, my father, and I still work together to this day. We run the company together. Now my dad is pretty much semi-retired. He doesn't really work in the field anymore, he's more office support.

I think that if in a perfect world he would retire tomorrow if he wanted to, but I don't think I would let him because I really don't want the stress of it all on my shoulders. I learned majority of my knowledge from him, but I'll say the most important thing that I learned from my dad was the ability to troubleshoot something logically to look at something mechanical and to understand how it works and be logical in the way that I diagnose things. Big-Picture diagnosis is something that I say all the time. Okay, look at the big picture: okay solve the problem, not the symptom.

That's was something that my dad taught me. Okay, he didn't teach me that exact phrase, but I mean he taught me that logic: okay, the problem-solving skills, my dad came up in the trade in the 80s okay, and that was beer count cold era. Okay, he went to trade school too, and they taught beer can cold. He survived most of his life in this trade with beer can cold methods.

You know you know, and I learned from I learned that way when I was coming up, but then I also learned you know after a short time like hey, this didn't quite seem right and I started doing my own research. So I'm not faulting my dad, because he's a smart person and majority of the old-school technicians are the same way and they're great guys. You can still learn a lot from them, even if they have those beer can cold methods, because there's still gon na be some great information. You can learn from those guys after some time.

I you know kind of didn't really like the answer that I got to a couple things like when I would ask hey: why do we do it the swaye and they would just say just because I said so yeah I didn't really buy that one. I wasn't one person to listen to that kind of stuff, so started doing research on my own. I wasn't rude about it and you know just kind of came up with some answers doing a lot of research before then internet wasn't really popular. So it was a lot of book research and you know buying different books and just kind of reading, so I learned from my father.

I also went to trade school. I also learned from my cousin, my cousin used to work for us learned a lot from him. Also and just kind of took a little bit of everything and mixed it all together. Also coming up, one of the very first social media forms was hvac talk.

That was a huge forum for us guys that was before Facebook. There's lots of great information still to this day, there's a lot of archived information. Now I know a couple years back: they lost their their servers, crashed and they lost a lot of information, but there's still some good stuff on there. They were able to recover some of it.

Hvac talk was a great resource before Facebook and different things became popular and, to this day, like I said, it's still a great resource. So that was the first social media that we had in this trade was HVAC talk and lots of guys getting together. Just kind of like I'm answering your guys's questioned, it was the same thing, so all right, um, let's see what else a DJ sub air. Thank you very much man.

I really appreciate it. Man, you guys, are awesome. Thank you. Thank you all right.

Are you guys? Let's see what else sorry, I'm texting someone right now. I see some people saying some stuff about audio and different things in here, so I not getting them most of you guys aren't trying to aren't saying audio issues. So I I don't. I don't think it's on my side: cuz I've fixed my stream issues and different things.

So hopefully it's just an intermittent issue with you guys. So alright, let's see what else we got mmm do I use a straight edge to align my indoor, blower belts or laser alignment tool which you I prefer I'm gon na be honest with you see, I usually use my eyeball. I mean that's just blunt and honest. Okay, I've used a straightedge once or twice but most of the time I don't have one with me, so I can easily align it by eyeball and just kind of look at the belt and know how to tell you know when it's when it's correct or not.

Is that absolutely correct and no it is not. You should try to use a straightedge and or a laser alignment tool as much as possible, but I don't so sorry, damn nightbot post everything all at once. That's funny huh, all right, yeah, exactly reefer tech mark.