This is the HVACR Videos Q and A livestream originally aired 5/26/29 @ 5:PM (west coast time) where I discuss my most recent uploads and answer questions from emails and the chat.
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Hello, everybody. How are you all doing today? Hopefully you know that's interesting, someone in the chat? Okay. So let me address this real quick for those of you guys that don't know if you're watching this after the fact when you watch this live, there's a chat that goes on. Okay, so there's a bunch of people interacting with me in the chat and just kind of recap.

The reason why I do these live streams is because I release a normal video on my channel Monday and Friday, and then this is to answer all the questions, because I get tons of emails and tons of questions on the YouTube comments and different things. So I do these to kind of answer those and to make it easier because typing out everything just takes forever: okay, but anyway, so someone in the chat said that they played a commercial on the beginning of the stream, which I didn't realize you two did that So that's very interesting, so YouTube's got to make money everywhere right, so they're gon na put commercials on everything they can so so doing. This live stream a little bit early this time, because I wanted to be able to spend tomorrow the holiday with the family. So we're gon na do something all day long and I didn't have to worry about getting home at a certain time.

So you know we may not have as many people in here, but hopefully we get a couple and we'll try to answer all the questions that we can get to. I have a few things I want to call cover and you know what kind of go from there: hey to everybody, that's saying hi and the chat, how you guys doing and Riley C yes, my my dome is a little shiny. Today I decided to go ahead and shave it, so I do that because I'm a cheap ass and it's super easy to just grab the Clippers and shave my head myself, so kind of roll with it. I'll probably mention it again for the people that come in a little bit later, but I'm gon na go ahead and let you guys know too right now I have a new video series coming out, it's a little bit different than what I usually do.

I kind of teased it yesterday. I really inadvertently teased it when I called in on Zack's, live stream on HVAC shop, Talk and decided. I better get it out since I made it public before I just wanted to go and get my idea before someone else gets it out too. So it's not it's it's in lieu to my normal video, so I released a normal video Friday.

This video series that I'm gon na be releasing has nothing to do with the Monday and Friday videos, okay, because I still plan on releasing the technical videos, Mondays and Fridays for sure, okay. So it's a little interesting thing that I'm doing with my wife - and I just kind of wanted to get her perspective on what it's like with hvac, are living with. Hvac are and kind of address some questions, and hopefully you know i my goal is: is to try to help people that are just coming into the trade, maybe their spouses and different things to know what it's like and to see how we do it and how We cope with everything. I definitely have a different perspective or perspectives, not the right word.
I have a different situation than a lot of people because I'm a business owner on top of me and service tech too, but I think that you guys can relate to some of the things that we talk about in this little series. Okay, so it's going to be a bonus series. It'll be a couple videos, long, we're probably gon na release some one at a time we recorded one of them today and I might upload it probably later this evening or something, but I will still release a normal video as usual, a technical, video Mondays and Fridays. So we'll see, we've got some people talking in the chat right now.

I'll definitely get to that guys. As we always say, if you guys have. Oh it's not a big Joe. It's it's not a new YouTube channel.

It's there! It's nothing new! It's gon na be on this channel. It's just a series, so it'll be a playlist, so it'll just be released on this, so you nothing new to subscribe to or anything like that. It would just be a video series that I release in lieu to my normal videos, so alright so had an interesting question that I kind of wanted to address, and I've had this one come through before, and the question was: how do I want? To paraphrase how do I convince a customer to replace parts that aren't necessarily bad but that I should change while I'm in there doing another repair? Okay, for instance, when I work on a walk-in freezer and let's say I have a bad defrost termination switch like I've. Had before I change all the limits, which is just like I say, whenever I change one limit switch, I change all two or three.

However many there is inside the system number one. I don't want to sound arrogant and, like I'm a prick, but I really don't give the customer the choice. Sometimes. Okay, if I have customers that nickel-and-dime me they're, usually not customers that I keep again, I don't want to sound cocky.

Okay, it's not like. I live on a high horse or ride a high horse or whatever the phrase is okay. It's just that. You know I, the customers, that I have they trust me and in its a trust that I've earned okay over time.

So, for the same thing that when I'm changing a condenser fan motor, you change a capacitor okay, when I'm you know braising the suction line, because there was a refrigerant leak. I changed the liquid dryer, okay, I'm you know, do I necessarily have to change the liquid dryer? No, I mean. Could I could I test the liquid dryer? Maybe do a pressure drop across it? Yes, but it's just good practices to do certain things. Okay, so it does take some trust from the customer and you do have to earn that trust, but at the same time, the way that I phrase things to the customer, you know I basically tell them look.

We need to do this repair. This is what the repair is gon na cost. If they ask me to break it down, I break it down and if they're gon na go through an line item every single item and tear that quote apart, you know I'm really gon na second-guess whether or not I want to do work for that customer again. Okay, I'm not saying that every time I'm gon na do it my way or the highway.
Okay, I'm gon na address each situation as it comes, but for the most part you know, when I do a repair, I tend to just kind of say what needs to be said and do the repair that needs to be done. Okay, now I know that's a fine line between giving the customer something they don't want and doing what I want right. But at the same time I have to use my best judgment and I have to you know, do what I think is best for that customer. Now again it takes time and don't you know, I hope you guys don't take that the wrong way.

I'm not a cocky guy that just says it's gon na you know you're gon na. Do it this way, but you know they it's I'm busy enough dealing with all the craziness that I have to deal with. So if I have to worry about a customer, nickel and diming me on every single thing that I do, I'm really gon na second-guess whether or not I want to work with that customer anymore. Okay, I think I already said this, but I'll say it again.

If you guys have, questions is put them in caps lock, so that way myself are just in the moderator can see them and we'll make sure that I try to get to them. Okay, um, let's see, let me I'm looking and reading through the chat right here. Okay, yeah being proactive, that's a great way to phrase it. You know I'm being proactive when it comes into the repair.

Now, there's also some things you know like. I do bring up to some customers like hey, you know, I'm changing an evaporator coil and this is a multiplex system, meaning that there's multiple evaporators all over the place and they're all in the same shape, but only one of them is leaking. I'm always gon na go to the customer and say hey if one of them's leaking the other three are gon na be leaking soon, do you want to change them and they may say no okay, I'll leave it be. I definitely make sure that they understand that.

I wanted to change all of them. Okay, so I'm not doing it every single time all right, but when it comes to certain things, I'm gon na get in there and I'm just gon na say this is what needs to be done. They're hiring me for my expertise. I'm gon na quote things.

I don't just do them on my own. I mean I quote them, and then you know then we'll address it as they want to take care of things and different stuff. So alright, right on Isaiah HVAC with Z, si says he had eight hundred and seventy nine subscribers Isaiah is a good kid guys. If you guys don't subscribe to his channel already, please go and do so cuz he's trying to make it to a thousand.

So alright and I'm gon na kind of go down my list here, I'm trying to get more and more professional and have a nice list here of things that I want to cover and it's slowly getting there. Okay, let's see what else do okay, so this is another really good one that I wanted to talk about too, and this is something that I I'm working with an apprentice right now and you know he works with me. He usually is with me three to four days a week and I might have him with another tech one day a week, just to give me a break, but because sometimes I have to get in the office and work in different things. But one thing that I stress to him all the time when he's working with me is that, if you're struggling to do something, you really need to step back and think about it.
Okay, cuz a lot of times for majority. Anyone and I'm talking about like let's say I'm taking apart and evaporator and you have to back together and I just noticed, he's struggling really hard and then sometimes I can step in and say, hey just step to the side, and it takes me two seconds to Put it together number one, he doesn't have the experience and he's learning. I'm not faulting him for that. But what I try to explain to everybody that I work with is: is that, if you're struggling with something right, if you're, trying to put it together and you're having a really hard time, sometimes you just need to stop and think about it for a second okay.

If it's difficult, you're probably doing something wrong or you don't understand how it works properly and what I'm talking about assembling things? Okay, because most of the time not always but most of the time, there's an easy way to do it. And if you step back and think about it, you'll figure it out. Okay, sometimes it's worth it to step back and take a breather. Okay, even if you're having a crazy technical problem where your brains really having a hard time go, take a lunch.

You know. Go! Take a break for a minute think about it. Calm down, go, have a drink, you know, relax, take a minute, breathe and step back into it and address that. Okay, a lot of times we get caught up in craziness and we take shortcuts and we cut corners and that's when problems happen.

Okay, so step back, think about it and then reappropriation. If you're not using a computer, then you'll have to search up his channel. But you guys can take his his. His channel name is HVAC with Z.

Si you can type that in, but if you're on a computer, you just go to the end of the the chat that there the little you know, phrase that he typed in the chat and click the three buttons and yeah there. You go right on alright um. Let's see what else we got here, another really good question, so I released a video this last week on a glycol unit. Okay, it was a beer line, chiller that wasn't working properly and the unit had a bad temperature controller.

Okay - and you guys saw that I installed a temporary temperature controller to get the customer going and - and I you know, kind of click on this. I got something: okay, something different, so I I installed a temperature or temporary temperature controller on the unit, and I mentioned in the video when I was all done - that I wasn't going to reuse that temperature controller and that I threw it away and then I got A bunch of feedback hey, why did you throw that control away? It was perfectly good they last forever. They do. They definitely do, but as a business owner, I can't sell my customer used parts there's nothing wrong.
I see some people they take used. Parts and they'll use them like for temporaries or something like that fan blades and different things like that, but you know to each their own: I'm not knocking anybody for doing that, but when it comes to used parts I sold that temperature controller to the customer. For one ok, the customer paid for it and I just threw it out when I was done because it been sitting in glycol. You know in a certain situation if it was sitting in a perfect environment where nothing potentially corrosive was affecting.

It then sure, but I don't know anything you know we had it sitting in a chemical and I can't sell that or resell that to a customer. You know because what happens if something happens with it? Not only was it sitting in glycol and I realized glycol probably isn't corrosive, but I also had pinched the capillary tube down and put the lid on it. You know it's just one of those things that I can't willingly sell a customer or try to reuse. That part, because, in my opinion, it's just going to become a headache.

It's just gon na lead to another problem, there's nothing worse than putting something in and then a day later, getting a call back and then finding out that oh yeah. I shouldn't use that part because then I have to eat that time. So for me on that particular job on the glycol unit, you know when I sent them to bill. It had a bill for the temporary temperature controller and then a head bill for the digital temperature controller and they paid for both of them, and they understand that and that's one of those things too, with the same thing like you know, I really didn't give my Customer a choice, but I know what they expect of me, so they would not have accepted that their glycol unit or beer line chiller wasn't working for more than a couple hours.

I mean you know that this is a brewery, a micro brewery, so they need to sell that beer. So it's got to be you know. The Derby or beer sales essentially are gon na fart rump a $ 90 temperature controller. So you know anyways so yeah.

I can't reuse those parts because it's just one of those things, it's not worth it for me to try to resell it. So definitely something okay, slow mosaic, you said: do I always check refrigerant charge by superheat and subcooling? And I'm assuming you say you work with old timers? No, I don't always check a refrigerant charge by superheating subcooling. You know I I it just depends on what you're working on okay, I do. Majority of my work is refrigeration, so a lot of times superheat and sub cooling is a byproduct first thing.
I'm doing I'm working on big built up systems or medium sized built up systems. So I'm gon na clear the sight glass wait for the permanent wait for the box to get close to temp, clear, the sight, glass and then dial in the superheat, okay subcooling, when you're working at the system with the receiver kind of goes out the door. It still matters, but it's a hard thing to accurately measure when you have a receiver, so we really don't pay too much attention to sub cooling. You know it's kind of there and we think about it, but you know we're more or less making sure we have a clear, solid column of liquid going to our expansion valve and then once the box gets closer to box temp, then we're gon na adjust the Evaporator superheat to you know, make sure that the valve is performing properly and we're getting the most use out of that evaporator.

As far as an air conditioning system yeah, I mean I'm always gon na look at superheat and sub cooling in one way or the other. Now it do, I do I measure sub cooling every single time. No, you know sometimes I'll make a judgment call and I might be working on a package unit and I might not get out my temperature clamps. I might just put gauges on and say: okay, you know things kind of look decent, but I'm using experience and I'm using some things.

You know gauging what the temperature is. I kind of have an idea what my pressure should already be before I even put my gauges on there, okay, because if I'm, if I'm working on a packaged unit, air conditioner, I know that I'm gon na be aiming for a 40 degree evaporator temperature. Okay. So you can see that, obviously in your suction saturation temperature, so now what about charging a system yeah if I'm charging up a system on a packaged unit, I'm gon na weigh the charged in and Dan I'll, adjust it and dial it in by superheating subcooling, whichever It is okay, depending on whether I'm working on a fixed orifice or an expansion valve system, but as far as just like doing a p.m.

check or something like that, I might not measure superheat and subcooling every time. It just depends on what the customer that I'm working for once right, because we're doing in the commercial side a lot of times these customers, you know they they only want to pay you for a four-hour PM. Well, I've got five packaged units. 15 refrigerators, two ice machines, six exhaust fans a make upper unit.

I can't do all that in four hours right, so you've got to kind of prioritize things depending on the maintenance, and so you set up things as a company to to cater to what they expect from you and what they want from you. And what they're willing to pay for so hopefully that answers your questions. I know I went a little different, let's see what else? Okay, how am i liking our 448? A in Florida, it's just rolling out mainstream and a lot of the old guys are fighting it. It's just a refrigerant, I mean yeah, it has a high temperature glide, but I mean to be honest with you that glide really doesn't hit me very much right, because I'm working on a heat craft unit and the unit has a head pressure, control valve or a Head master, so what I'm gon na do is I'm gon na find out call the manufacturer find out what the winter charge should be.
Most of the heat craft units have micro channel condensers, so you can't use the the spoilin 90-30 one method to charge for the winter charge, because that's only for a tube and fin condenser coil. So that's a coil with copper in it. So a lot of times what you got to do is lean on the manufacturer, heat craft manufacturing and ask them what the maximum charge is for that unit. You got a roll with the maximum charge, so most of the packaging I mean the condensing units.

I've been installing are like 2 horsepower, two and a half horsepower condensing units, and they come with a basically a 14 pound receiver. So that means I can put 14 pounds of refrigerant in there pumped down so a lot of times, we'll just weigh in 14 pounds and they've been working just fine. That way. Now I'm not saying I don't pay attention to the refrigerant pressures or anything we're gon na evaluate those two, but I really haven't had a hard time doing, installs on 4 or 40 a day where we're really gon na see the the issues potentially with 448.

A is on the older systems that you're retrofitting okay, you have to make sure that the systems capacity can handle that refrigerant 448, a from all the reading and everything, and even the measurements that I've done myself is, is it runs a higher discharge temperature so that The head of the compressor is going to be getting a lot hotter, so you have to make sure that the system is sized appropriately and that we have enough suction gas. Coming back to cool that compressor off. If you're running a low temp system, then you got to make sure that you have some kind of mechanical cooling like liquid injection or a DTC valve. That's cooling, the head of that compressor, so those are very important things and we're definitely gon na see some issues with these high glide refrigerants and these high discharge temperature joints that are coming out.

But you know if you, if you do the system correctly from the beginning, you're not gon na run into issues, and so I haven't ran into any issues. Yet I'm kind of curious. You know, as the summer time comes along, what's going to happen, but all the systems that I've installed for 48a on have been properly sized. So I don't anticipate any problems.

You know. If people aren't following manufacturers, installation instructions and different things, then you know yeah. They may run into a problem, but you know as far as people getting scared of it and whatever I mean you have no choice, I mean for here in California. You know are it, you know.
We basically had the rule come out this past January, that you know we can't use 404 a on new installations anymore, so we've been working with it for five months now, if not longer, while I've been working with it for five months, I've probably got 10 to 12 systems with 448, a in it right now so far I haven't had any problems. I mean they run just fine, so you know it's just one of those things it's gon na take time. I think our biggest hurdle with all these different refrigerants and all these people being afraid of change and all this different stuff, is that a lot of us have gotten by myself in for a very long time with winging it, meaning that you know yeah. We can get it working and we may not understand completely how it works, but yeah.

You know we got it working well, that's when some things start happening, especially when you start putting in change. We get so used to doing something, a certain way and kind of half-ass understanding how it works, and then you throw in our 448 a which has a super high temperature glide on it, and then we're like what is that? How do I do that? You know how do I check for that and really the only the only time, you're gon na have a high a problem with 448. A is if you're trying to you know. Well, I shouldn't say this, but if you're trying to calculate superheat, right and and you're, especially if you're, using like a pressure chart that doesn't compensate properly for the midpoint of the glide, you know those are some things that can get very confusing so Brian or had Written an article recently about glide and you guys should go check it out.

I believe it's on HVAC school. He wrote something about the high glide refrigerants and had some pretty interesting information in it. So I'm also - I don't know if he's in here yet, but I will also share Ralph. I have Ralph Vergara from Honeywell he's always in here and he's always willing to help people.

He works for Honeywell refrigerants and he's always willing to help people with the refrigerant retrofits, so I'm gon na post his email in here cuz. He always is at you know here usually and if you guys have any questions about the high glide refrigerants, especially for 48a, send an email to Ralph. I just post his email right now and I know he's super happy to answer these emails so hit him up. If you guys have questions huh, Kyle Carmen, he said, did I see that test? Oh, is coming out with their new 350 foot range probes yeah.

I did I kind of learned about the same time that you guys all did, and I think it's very funny, because they look so so similar to the the field peace probes, but I'm also not going to knock them because the field peace probes, look very similar To the testo probes and a way to from the very beginning right, so it's just one of those things how they all kind of copy each other and try to repair. You know each other's mistakes and different things, but yeah, so I'd be interested to see the. If the range is true on the test, does it basically my understanding is? Is they probably just went to Bluetooth 4.0, which is just the answer? That's what field piece did to hey Dallas. Thank you so very much or what is what is your real name, because I know it's not Dallas right.
So what is your real name? I think you told me once before. Isn't it Mike or something like that? I think you told me that before really appreciate you that super Chad D - that's really awesome so um. Alright, let's see what else I'm missing here. Can I explain the wiring and refrigeration piping of multiple coil walkins ie slave coils yeah? I can okay so first off if we have multiple coils or a multiplex system.

Okay, you have to understand something. The refrigerant flow is usually shut off by a solenoid valve. Okay, the solenoid valve can be in multiple places. It can be up at the condensing unit.

It could be in each individual, evaporator coil. It just depends on what you're doing in a multi coil situation. It would be rather easy if the solenoid valve was in one single spot before all the evaporator coils. So then you could just run a common liquid line to the solenoid valve and then split off after that and go to all the other coils.

But you know different times that may be a problem depending on how many coils you have okay, most of the time, what I see is is multiple evaporator coils in each one, having its own solenoid valve, with usually one temperature controller controlling all of them, because in My opinion, it's easier to run electrical to all the coils, rather than multiple liquid lines that are teeing off and going in multiple directions: okay, so, and that means like putting a cylinder valve in one coil and then you know branching off of the outlet of that Solenoid valve and go into other coils do that can get a little complicated and kind of a you know, kind of hard to do in a confined space of an evaporator coil. So in essence, you just have to have a single source temperature controller right. That is controlling all the different silhouette valves, so I find not to be. The easiest method, in my opinion, is, is just to run a standard liquid line to each coil.

Have a single I mean, have a silicone, I'm still annoyed valve in every single coil and then, when the temp control turns on it turns them all on at the same time, it turns them all off. At the same time, depending on the size of your box, you know the boxes that I deal with are just like. Walkins in a restaurant in the boxes usually are no longer than 30 feet long, so they might have to evaporate in them. Typically, we're not gon na have multiple temperature controllers in that situation, so we're usually gon na have a single source temperature controller.
But if you get into like the big warehouse, coolers and freezers, you're gon na need multiple temperature controllers and different things, but especially when you get way even on the coolers. But when coolers and freezers, when you have multiple evaporator coils. What you really need to be concerned about is your defrost strategy right, because you typically you know, you don't want to you, don't want the defrost to be fighting each other, so that can be a hard thing and that's a whole nother ballgame, depending on, is how Big, the system is, if it's, the small boxes, like I work in, we defrost both of the coils at the same time, whether it be a freezer or cooler you know, and but in the big giant, warehouse ones. You know they made defrost them individually at different times.

It just depends on the situation and how the system was sized and designed so um. Let me see here so to give some definition. A master coil is typically the coil that has the temperature controller and/or still annoyed valve in it, and then a slave coil is usually controlled by the master coil. So you know, then you may have a you know.

The slave coil might not have a cylinder delft. So that's the situation that I actually usually don't use where you have one single cylinder valve. I typically run you know ass Illinois valve in every coil and then you know one temperature controller, so there really is no true master or slave coil. That's usually my choice.

Now, when you get into the more fancy digital controlled evaporators like the heat craft, qrc controllers, and/or the beacon systems or the key to therm controlled systems, you know they may still consider one to be a master coil, because the temperature controller may be associated with one Coil and then the wiring, depending on their strategy, might come from that temperature controller, so but the whole term master just means that that's the main coil and that controls the other ones. So hopefully that explains some of that a little bit. Let's see what else. I'm missing in here and go back up in here.

Sorry guys just sent it soon. Oh so that's way back in the bottom. Just for us! Thank you! So very much man. I really appreciate it Paul Lehmann! Thank you, sir.

What are my thoughts on 427? A refrigerant Isaiah I've used 427 a refrigerant. I don't want to talk crap on it. I didn't have very good luck with it, but here's my take on all the different refrigerants. Okay, stop! Listening to the supply houses, your supply houses are not a necessarily always a source of proper educational materials.

Okay. Now, if you know what you're doing - and you have a good supply house, then by all means listen to what they have to say, but what I'm getting at is. Is you can't always trust your supply house? For instance, one of my main supply houses that I use all the time they have two really really good guys there. They have the manager and then kind of the assistant manager right and then the other guys are just helpers.
Essentially, okay, really nice guys, I'm not knocking Amy one of them right, but the helpers typically repeat the things that they hear. The assistant manager and the manager say. So what happens if one of those two main people at that supply houses gives false information, then everybody else starts giving false information too. So, where I'm going with this, when I first started using 427 a I was told it works great with mineral oil.

You don't have to worry about this. You don't have to worry about that. You can use it. You know just basically remove the old r22 put 427 a in and call it a day.

Well, two days later, I lost a 10-ton compressor right. So then I changed that 10-ton compressor. A day later, I lost the new 10-ton compressor. What happened was the 427? A refrigerant did not work well, and this is something that a lot of people have figured out, but it did not work.

Well, with a cope, I mean a trained 3d scroll compressor because of the way that the bearings are lubricated in the Train: 3d scroll compressor. There was some oil return problems and it needed that oil to come back and the oil wasn't traveling as well as it was traveling before then. What happened is we think what happened was there was a Slugger oil coming back and it busted the valve on the top of the compressor, and everything was bad okay. Now it was because I blindly trusted the supply house and they told me this would work.

So I moved in there and just dropped, you know essentially put 427 a refrigerant and then didn't do my research. Now after that happened, I really started to do my own research and I realized. Oh, my gosh. A lot of people have been having problems with this refrigerant and there was a lot a lot of issues there.

Okay, now, the main thing was was that if you read the manufacturer's information, it says is compatible with mineral oil, but it's not necessarily the greatest way to use it and for proper usage of that refrigerant. You wanted to have polyester oil, so the right way to do that would have been to change the oil and the compressor to poly Oster oil. Before I installed it, then more than likely we never would have had a problem, but you know we tend to sometimes lean a little bit too much on the supply, houses and trust them when they say yeah. This works fine because someone told them that it worked.

Fine, but nobody did the research to find out for sure that it works fine. Okay, so, to answer your question Isaiah, I don't have a problem with 427, a refrigerant I just I tend to use. Are I still choose to use our 22 just because I'd rather not have to deal with all the headaches of of you know converting oils and different things? Okay, so at this point in time, I've said it many times, I'm still using r22 refrigerant, and my customers know that they're, given the choice, I willfully willingly use these alternative refrigerants, but they don't want to deal with the headaches and the problems that we might potentially Run into so at this time, they're either converting their systems. I mean you know, reusing 22 or they're, changing their systems out to four tens.
You know putting in a new unit, essentially okay, so but I'm not talking crap on 427, a it's just. You know it works best with polyester oil so that the claims that it works amazing with mineral oil. You know, if you read the instructions that says it will be compatible with mineral oil. As long as you don't have hype, risers big pressure drops.

You know all these stipulations right, so that's where you got to be careful, so I'm gon na go back up here and see what I'm missing here. Okay, hopefully that answers your question for you, but let me see my father and I are thinking about using it. Next year, when our 22 is gone, you just got to be careful Isaiah, so do I have any experience with the key to therm? Plus tech. Just did a class on the system this past week, pretty cool technology Kyle.

Yes, I've worked with key to therm stuff. I've worked with, I have a system out there running a walk-in freezer. I did not install it. It was pre-installed I just took over the restaurant.

It has a key to therm, fully electronic expansion valve system with the big giant evap efficiency controller, and then I have tons of the key to therm 10 Plus defrost controllers out there too. So the temp + defrost is is just kind of like a Ronco et Cie one 11-thousand replacement, but it has defrost built in it's also similar to the a19 digital temperature controllers. Same thing. Ok, so it's basically an electronic temp control, but it has built-in defrost very, very good control.

I like them a lot. Do I use them every time? No, I don't use one particular control on everything. In a certain situation, I will use a key to therm temperature controller, but in other situations I might still use a Ronco temperature controller. So, but I have nothing you know I really do like the key to therm products.

Their technology seems to be amazing. I have read and know that they're also integrating and building the the digital circuit boards that come equipped in the Trenton ESP, I believe, ESP + evaporator coils, and so you can get them fully communicating with digital controls. It's got a circuit board that kita therm makes for them, so you can essentially buy a whole evaporating, all that's already equipped with all the electronic stuff and it's a lot cheaper than adding on all the key to thermoelectric stuff. So look into that too, if you guys are interested in the key to therm products but yeah, they have great stuff and I have no affiliation with them good guys.
So, alright, let me see what else I got going on here Daniel. Thank you very much man. I really really appreciate, did I say: Paulie Oster, correct huh. Alright, I may have said it wrong.

Polyester, no yeah! I said polyester yeah right on okay, yeah Kyle, so yeah you are able to monitor your system. So what you're gon na find, if you're working with restaurants is a lot of customers are concerned with privacy issues and different things. So I have a customer, but they do not want their system to go, live on the internet, so I have a key to therm. Tenth plus defrost controller out there with a key to LD a controller on it and basically that just makes it smartphone compatible or got a computer compatible, but it's not connected to a network.

So whenever I get within, you know 50 feet of the restaurant. I can pull up that controller on my phone, but it's not connected to the internet, but I definitely could, if I wanted to okay, but just you know most of the customers that I deal what they don't want to have like the whole Target fiasco. Where hackers came in and stole a bunch of data at like a data breach - and they came in through the building automation system and everybody's afraid of that stuff, so most customers don't want to do that all right. Okay! On our 2002 systems, will it be legal to repair if you changed our 22 with a replacement refrigerant Julio? There is a lot, a lot of confusion about the legality of fixing r22 systems for 10a systems for 4a systems, and I actually have some ideas to try to address those issues.

If you guys notice, you know most of the videos that I do are pretty dumb down versions and dumbed down explanations, because that's how mine works my mind works. I should say I'm kind of a slow person. I appreciate hearing people being really smart and talking very smart and I really do like to listen to it. But you know I tend to understand information when it slowed down for my brain, and so I plan on doing something like that and what I mean is this.

I am gon na reach out to the powers that be. I do have some contacts with in different sectors with the EPA and different things, and I do want to try to reach out and get some some real, simple explanations without a bunch of technical jargon that makes you confused and dadadada. I just want a plain and simple yes-or-no answer, so I will be doing something like that in the future. Okay and it will be if, if I end up doing that, video, it will be understandable and you won't have to think oh yeah, but for this date this happens.

But then, but then you ignore that rule, because this administration came in and after this that it's just too confusing. I just need a plain and simple answer: when can I use this? When can I not use it? What can I do? What can I not do so, I'm working on that and I will do a full explanation - video, hopefully soon, okay, to make it completely understandable for everybody all right largest motor. I have ever replaced just rest. I don't work on the very big stuff, so I'd say the largest motor is probably a five horsepower.
Maybe maybe a five horsepower motor is probably the biggest one. I've ever replaced so yeah. I don't do any big giant stuff, so I did have to. I think I needed to use a crane or something for it was a big boy but yeah a small crane.

I think all right um mr. shape Shafter, that's a very interesting name. There do you know where I can find an image of a wok and refrigerator freezer evaporator fan diagram that points out and tells each name of individual parts. Interesting but hey, send me an email, and maybe I have something for you.

I don't know HVAC our videos at gmail.com yeah that can go to anybody. That has questions for me. I'm going to type that in there send me an email and remind me about that, and I will try to answer that question for you and maybe get you a diagram. If that helps Jo 65, do I still use our twelve? Yes, I still have a few systems out there, not a lot, but I still have a few systems that have our twelve and I still have one drum of our 12 with just a little bit of refrigerant left in it.

So I really probably wouldn't sell that refrigerant, but I guess in a situation to get someone through the night I might but yeah there's still a few systems out there. I still have a few systems. I can think of one walk-in freezer that still has 502 in it. I can think of.

I actually just showed it in a video recently, a walk-in cooler that has our twelve in it, so yeah they're still out. There still got him any learning. Experiences with electrical sparks and getting shocked, Ryan drew yeah Ryan, so I came up in a different time and I probably don't follow all the safety practices that I should follow to this day right. I've been shocked many times, probably more than I should be, never buy anything deadly right, I mean, but I guess, if you think about it, in almost any electrical shock can be deadly right, but I've never been shocked by anything more than two hundred eight volts.

Okay. But so essentially yeah that would have been. That would basically just be one leg. You know 115 volt leg, essentially because I haven't been shocked by both sides of a 208 volt circuit, so but yeah I've been shocked and I've made a lot of mistakes.

A lot of things that I shouldn't have done definitely okay, working on energized circuits is definitely dangerous. I mean there's an element to our industry that we have to do that, but we need to follow proper safety precautions. Okay, these days, some of the safety precautions are getting a little out of hand as far as what you have to do, I understand it's a safety thing. Okay, I get it, but it's just hard for an old-school person to understand that they got to put a beekeeper suit on to open up a disconnect switch on a 480 volt circuit.
I again, I totally understand the safety I've seen all the videos. I know what an arc flash is. I know how hot they can get. I'm just saying engine.

Well, it's hard to convince someone like me. You know I realize it now, but in the beginning, when you told me I needed to put on a beekeeper suit right, which is a big old, protective suit and Kevlar gloves and all this different stuff to be able to open up a disconnect. It seemed kind of silly because I've done it so many times without doing it, but the thing we have to remember, especially the older guys that are working in the industry is, is that it only takes one time to ruin your life. So is it really that much of an inconvenience for us to have to put on proper safety precautions to open up a disconnect, because that one time might happen to you? So it's very important that we follow those safety practices.

I definitely need to follow more safety practices more than I do. Okay, you guys got to remember you want to go home when you go, I mean you want to go home at night. You know you don't want your wife or your spouse or whoever to get a phone call that you're not coming home and it's true that it can happen. So we need to be more cautious and we need to follow more proper safety precautions.

Do I have an exact situation to reference? No, not really, maybe I'll. Maybe I can think about that for a while and think of one situation where I got shocked and it scared the you-know-what out of me something like that. I'm trying to think I can't think of one that pops off the top of my head, but I'll think about it. Some more all right, okay, Joseph Comeau, you said why don't the ad die to freon from the factory to help find leaks? Okay, number one dye is not necessarily safe for the system: okay, dye can have contaminants and it's not necessarily approved.

Okay. One thing you got to be cautious about is also trusting what you read on a package all right, so we've got a package of refrigerant dye and, and I'm gon na explain this a little more context. So don't tune me out yet, but we have a package of refrigeration dye. We go to the local supply house and on the package it says, om, safe and you think, okay, cool, it's safe.

What om manufacturer approved that dye first off okay, om safe, can mean a lot of things, because an OEM is not just Copland compressors or Tecumseh compressors or Bristol compressors, or a spare or Umbraco, or any one of those right and om can also be. You know anybody, that's an original equipment manufacturer, okay, so the OEM can also be the manufacturer of you know the the air conditioner, not just necessarily the compressor, okay, so om approved, is a very vague term. So, just because you read it on a package doesn't mean that it's approved by all equipment manufacturers. So you need to be cautious.
Do your research? Have I used I? Yes, I have so I'm not gon na sound like a hypocrite. That's never used it. I've used it, I don't like it, it was a last resort. It worked in one instance, but I also have a very recent video where I might have just been a Facebook post where I went to go.

Do a second opinion on a walking cooler that had refrigerant leaks and they, the the original contractor, had put a sticker on the unit they put dye in it. So I have a dye flashlight in my van and I got my dye kid out and I opened the flashlight up and I'm looking around for the leak and I can see fluorescent dye in certain places. But then I also got my leak detector out too, and my leak detector pinpointed a leak and I use soap, bubbles or big blue leak. Detector, liquid leak, detector sprayed it on there and the dye wasn't even coming out of the leak, but the big blue soap bubbles was showing the micro leaks all over it.

Okay, so dye isn't always the one-stop shop. Okay, dye will only work if the oils traveling to that point in the system where the refrigerants leaking out. If there's no oil in that refrigerant, so you'll tend to see problems at the tops of the evaporator coils in different things where the oil might hang out at the bottom. More so dye isn't always the answer, but dye can also be a bad chemical depending on which manufacturer of the diet is, they might add some weird additives to the system, and you just don't know how well it is so why don't manufacturers add die because they Don't want a warranty that stuff, if you think about it, a manufacturer doesn't want to warranty anything they don't have to and I'm for a manufacturer.

That's just a carrier. Trane Lennox, whoever to go put dye in their systems, they're, basically guaranteeing that compressor to. But then, when that compressor fails, if it fails, they're gon na want to go back to the manufacturer. Let's just say it's Copeland or LG, or whoever and they're gon na say: hey this compressor filled and the manufacturers gon na say we don't approve that died in that system, but the manufacturers, so it just creates a problem.

So you know they don't want the liability. So that's why they don't put that stuff in there all right if I'm missing stuff guys, let's throw it in the bottom of the chat. So that way I can get to you guys's questions. Okay, all right! So I can run my line says you cut the entire power of the whole plaza yeah.

That's that's dangerous! Primetime cutting power to a whole place. Man, that's that's some scary stuff man. I've had an arch arc explosion or arc when one of my texts one time he asked me if the the system was de-energized - and I said yeah, I D energized it well. The drain line heater was energized via a separate circuit, so he went to go cut.

It and it blew the blew a hole in his linemen pliers and not at that moment right there. Everybody realized that when we were working together because we all kind of came up together was we don't trust anybody anymore. We verify voltage yourself and that's something you guys should follow by you need to verify that something is de-energized before you start playing with it. Don't assume or don't trust that someone else says it's de-energized.
You always need to verify for yourself, because it's your, if not there's, alright, what what replacement refrigerant would I use to replace r22 if I had to use a replacement refrigerant at this point in time I would change the oil to polyester oil and I would use Our 407 C okay, but I don't like to use replacement refrigerants. I've never used our 407 C's. So if I had to choose one, I would choose 407 C, but I would definitely change all the oil to polyester, not just add a little bit of polyester to a mineral or something like that. I'm a by-the-book kind of a person as much as possible.

So, but yeah I'd still to this day, I still use our 22 and that's what I'm selling so all right always check twice. That's definitely true! Okay, let's see if I'm missing anything else in here, okay, I'm gon na hit some more questions that I have on my thing. You guys definitely throw some more questions in the chat. If you guys have them, let's see okay, so I had a question that actually came in in the very beginning of this chat and I'm assuming that you were a new tech, because your question was: should I focus more on ice machines, and/or the refrigeration side? He was trying to choose between which one okay and I would strongly suggest that you focus on all of them.

First off. If you learn the refrigeration system, it's the very important thing you need to learn. First, before you do air conditioning ice machines or anything, you need to learn: basic refrigeration: okay, a compressor pumps, compression heated compression. You know that changes state of the refrigerant all those different things, because every one of our systems out there uses the basic refrigeration concepts.

So you need to make sure that you understand the refrigeration concepts, so don't limit yourself, just the ice machines or just two refrigerators or just two air conditioners. If you can learn as much as you can, because you become a much more valuable resource, you can work for a company forever just doing air conditioning work. But then what happens if we have like a crazy winter like we're having right now here in Southern California? It's raining today, you know we haven't, I think we in the month of May. I don't think we've had one day over 80 degrees, it's been, you know, it's been cold, it's been crazy and you know we're a little bit.

Slow, slower we're not getting the air conditioning calls, but I'm still getting refrigeration calls the more knowledge that you have. The more valuable you're gon na be and you're gon na be able to stay busier. Potentially, okay, so expand your knowledge. People that ask me all the time.
What's the best thing to learn. What's the what's gon na give me an edge over the next guy and all these different things learn the basics, learn how refrigeration learn your electrical and definitely definitely, if you want to know new emerging technologies, make sure you're computer savvy and also learn about vrf systems. Okay, variable refrigerant flow variable, refrigerant volume. I know nothing about them.

I would love to learn more about them, but it's just not something I have time to go to school for, but vrv systems, vrf systems, those are definitely becoming more and more popular, so definitely learn up on the vrf and vrv systems. All right. Okay, let me see what else what I am missing here: yeah. It has been cold everywhere, so solenoid was energizing Indiana chosen like crazy.

That's interesting! But okay, let's see what else yeah. So I did. Okay, I'm gon na address it again in the very beginning of this stream. I brought up something so I'm working on a new project.

It will be a video series that I'm releasing on this channel. I already mentioned it in the beginning. I'm gon na mention it again for the people that are coming in it'll be coming out. Maybe this evening, maybe this week, it's gon na be a video series, like maybe four or five part video series where myself and my wife are gon na be talking and I'm gon na basically explain how our life works and how we have dealt with the stresses.

The problems, the headaches, what it's like for her to have to deal with me. I have mild mental disorder, all kinds of different stuff. Okay, so this is not gon na be in lieu of my normal videos. Okay, I'm still gon na release my normal videos.

On Mondays and Fridays, this is just gon na, be like a little bonus episode, basically talking about how we do it, what kind of problems we go through? Basically, my whole goal in this is is that I want to answer some of the questions that maybe your spouse may have about how how other spouses deal with this kind of stuff. Okay, we definitely have a very interesting dynamic, my wife and I because I am a business owner and a service tech. I obsess about things. I've got mild OCD undiagnosed, but I definitely you guys have seen it the way that I work, so I'm definitely kind of a very unique person and so we're gon na kind of dive into things.

So we start with like a general episode where I introduce her. We just kind of talk a little bit and then we're gon na branch off and go you know into other videos, and these videos aren't typically my plan is: is that they're gon na be 15-20 minutes long each? So it's not like they're gon na, be our two-hour long videos or anything. Okay, we're gon na release a series of them, but they're, just gon na be bonus. Videos again they're, not gon na replace my normal technical videos; okay, so that will be coming out soon.
I know I keep saying this: I reordered some samples of merch that's coming out soon too, let's see if they, if they turn out good this time, then I'll release them to the public and go from there. Okay, yes, airp Road 986. Yes, we have a C 20 and a C 38 license or refrigeration and air conditioning license here in Southern California. Okay, let's see if I'm missing anything, you have four no a/c calls you're excited good for you, Isaiah, very, very cool, all right guys, let's throw some more questions in here.

I would definitely want to try to get to them again guys this video is in lieu.

5 thoughts on “Hvacr videos q and a livestream 5/26/19”
  1. Avataaar/Circle Created with python_avatars AKA HVAC says:

    Chris I have been watching/listening to your videos from the beginning, you have selected to put waaay to many commercial ads in your videos, to the point I can no longer watch your videos due to the constant interruptions, I guess I saw this coming when you did your Sporlan give away and constantly rammed their name and product down our throats like there was no tomorrow! 3-4 commercials in 1hr is acceptable but 1 every 5 min is ridiculous… and shorten your intro, no need for us to be sitting there for over two minutes listening to some song!

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

    I like to put down what needs to be fixed right now to get it up and running. Then recommendations . That way if it fails they can't say I didn't warn them. Are you in Nepean ?

  3. Avataaar/Circle Created with python_avatars SImpleSnoop says:

    Hi had you ever did a dc air conditioning repair

  4. Avataaar/Circle Created with python_avatars Rob Hernandez says:

    VRV are a pain in my ass

  5. Avataaar/Circle Created with python_avatars Southwest Mechanical Inc says:

    Hi from Las vegas

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