Foreign, so, ah, it's time to chill out and get ready for a mediocre q, a live stream if you're old enough grab yourself your favorite adult beverage and if you're not stick with apple juice, put your feet up and relax. If you have any questions, feel free to ask them in the chat and now, let's queue up the intro music. This video is brought to you by hello. How are you guys doing this evening? I am doing crappy.

I i canceled my last live stream last week because i'm fighting a pinched nerve. It's gotten better! Um. I've been to a bunch of doctors, i'm on a bunch of medicine, chiropractor all that good stuff. But it's it's on the healing end.

You know it's gon na. Take time to work this out, so we're still waiting on some evaluations of my x-rays and different things like that, but i'm going to be all right. You know so um i've just been working on like this whole weekend. I didn't do anything just rubbing.

You know putting frozen peas on my back and um yeah, exactly you guys caught that little little thing. I did there so anyways i've been putting frozen peas on my back and stuff and it's been helping out a lot and just trying to relax and get some rest on stuff. So yeah um a few things i want to talk about as usual. Uh definitely haven't gone through the comments as much as i would have liked to, because i kind of haven't been staring at youtube very much um, so yeah.

I got some stuff to cover here, but if i missed a few comments, i apologize uh feel free to send me an email or something like that. If there was something in the comments for the last four videos that i didn't address, i'll try to get to it or something like that, my email address is hvacr videos, gmail.com, so um uh. How has i've already answered that? How my back's doing so uh a bunch of people - i lost my train of thought already. Oh yeah uh.

Someone had asked me what the weather's like here in california. It's nothing like the rest of you guys, the midwest, the south um uh, the mideast. All that or the east coast and stuff - i know you guys - are all dealing with crazy winter snow and everything like that right now, um here it's it's pretty mild, i'd, say 60s or something like that. We're not really hitting the 70s right now, but we're in the 60s, so just a super mild winter, as usual here in southern california, which isn't helping us because we're super slow when it comes to restaurant, refrigeration, work and stuff.

But you know we will make it through so um. I wanted to bring this up really quick and i'll bring it up later on in the stream too, as people come in and come out, i started a video project a while back where i started. Another youtube channel called hvacr tools. I never really took off with that channel.

I know i have a bunch of subs on it, but i've only posted one, video on that youtube channel and um. I uh just kind of got tired. You know and kind of got burned out just having a hard time keeping up with my normal schedule for hvac our videos, let alone a whole nother youtube channel. So um i'm actually bringing my friends on board.

So the overtime crew is gon na jump on board. On that youtube channel with me and we're gon na start posting videos together, which is greatly gon na help me to uh, not be so stressed out about the the video schedule and everything like that. So um, if you guys, haven't already definitely subscribe to the youtube channel, we've got some really cool stuff coming up, i'm gon na post it in the chat right now um, it's called hvacr tools. Okay, currently, right now, there's only one video but stay tuned.

We've got a lot of cool stuff, we're also looking for some feedback on stuff that you guys might think would be interesting, um. So hang on just a second put that right there yeah so some of the first tools. I will go ahead and discuss it. It's not a big surprise, but some of the first tools that we're going to be doing videos on i actually just ordered um three of the new testo 550 manifolds, the new ones with the new screen and all that stuff we ordered.

We went all out on it, so we ordered three of those. We ordered the new wireless vacuum: sensors um. We ordered one of the new testo 550i, which is the manifold without the screen. So one of us is getting that too.

So that'll be something we're going to be talking about some other videos. We're going to be doing too refrigeration technologies have some new tools that just came out. Actually they have a new foam gun, that's more catered to their coil cleaners to the venom packs. So it has better dilution, ratios and you're, able to control that a lot better, so we'll be doing videos on that refrigeration technologies actually has a new hand pump sprayer that we'll be doing a video on.

I believe we should be able to do a video on a uh blower door here, pretty quick because i believe adam just ordered a new blower door um. I plan on ordering the new veto tech pack, the rolling backpack, to see if it's a gimmick or if it's something cool, obviously with my back problems right now. That might be something smart to consider, and then we should have something coming out on some thermal imaging cameras too. So you should see some silly stuff too in that those video reviews uh, because you know i get emails all the time for the silliest stuff like from amazon.

These crazy silly tools that i would never and - and i thought it would be kind of a fun gimmick if we go ahead and accept those tools and start talking about how crappy they are so um plan on that one coming too. So if you haven't already go check out that youtube channel, it's called hvacr tools. I just put it in there i'll talk about this towards the middle of the video. Maybe the end or something like that too.

So stay tuned on that we're gon na be working on that and that'll be a fun project for all of us together, so um as usual. I want to talk about the recent videos so um, but let me address this too, for the new people coming in yeah, i did skip the last live stream because of my back, i kind of already covered that i'm still kind of messed up right now. It's in my neck and it's weird, it's a pinched nerve in my neck, but it's gone into my shoulder down into my elbow and into my hands. My fingers are currently numb right now, so it's definitely something we're trying to work out.

I've gone to the normal doctor. I've been seeing a chiropractor too, and we're kind of working everything out so we'll be okay, um all right, so i definitely want to get to you guys, questions things you want me to talk about in the chat too. So, as usual, do me a favor, put your comments or questions that you want me to address in caps. Lock, okay, don't get your feelings hurt.

If i don't get to your comment, okay, oftentimes, there's a lot of stuff going on. We might miss one or i just don't have time to get to it - feel free to send me an email to hvacrvideos gmail.com. If i don't get to that okay. So, let's get on with this um uh last bit of business two before we get any further into this is sporland.

Has a webinar on oil management coming up on february 18th, 1pm central time it's going to be their normal type of online webinar. So i'm going to post the link to that and then the moderator bot will be posting the link to that in the chat here as we go along too so definitely register for that webinar guys. I know i've said this before, but i really do dig the spoiling webinars, because the two guys that uh usually conduct the webinars. They have a cool, uh um, just thing going between the two of them.

They kind of interact really well, and it makes it so that way, they're not extremely boring, because uh in what i find interesting about the webinars too, is even though they're more geared towards supermarket. You can take from it even if you're, a residential service, tech or just a light commercial refrigeration, tech like myself, you can take things from it, so definitely get good information from their webinars. So all right, um, so uh. What is my company called uh? You know.

It's not the biggest secret in the world, but i i try to keep my my normal refrigeration company out of the spotlight on youtube. So i really don't talk about that too much i mean. I know it has slipped here and there, but yeah. I don't really reveal the name of my company, so um all right.

Let's see what else uh slow down my work uh, as in probably try to take care of myself, i'm assuming you're, saying yeah. I should definitely take care of myself a little bit better. So um all right, let's see what else we got in here. What's my company name, uh would like to call for service.

Oh yeah, i don't reveal my company name. You can feel free to send me an email to hvacrvideos gmail.com and we can talk further. So um, let me see uh. Let me see here um.

Where is my play button uh play button. I have no idea dude, i don't know if you have to apply for those things. Um no idea to be honest with you that uh stainless steel sign that uh was made for me by rich in the chat and uh ike. Had the idea and stuff and kind of helped with the design um, that's a much better thing than the the play button from youtube.

So i'm not even concerned about the youtube play button. This this means more to me than that play button ever did so. I don't know if those play buttons just show up or if i have to apply for it. I i have no idea not really too concerned about it.

So all right um, let me see what else uh all right. I'm gon na go ahead and get to my list of things to talk about here. Um automatic expansion valve. Can i explain how they work? Well, uh! I don't i'm not super knowledgeable in how they work off the top of my head right now.

So that's not something i really really want to dive into uh, because i'll probably step on my tongue a little bit. I have a general idea, but um. That's not something i feel comfortable going to town on so have i worked on any of the new carrier units with the new blower with no belts joshua. No, the carrier calls their units, the eco blue.

I believe they call them and it's basically a giant axial fan motor. No, i have not worked on any of those um they're interesting. Looking to me, i i'm a little bit concerned about those when it comes to the uh greasy kitchens that i work in. I could just see those things becoming a disaster and trying to clean them without getting them wet.

So i don't have a lot of faith that they're gon na do good on kitchen air conditioning systems, but time will tell sorry to flip my fan on it's getting a little warm in my office right now so um i had a question come through uh. Well, actually, let's talk about the video, so i've had four videos since the last live stream, so uh the ice machine is down okay, and that was a video where the unit had um a noisy air pump. Was it a noisy air pump yeah, it had a noisy air pump and the ice. It was kind of having a hard time with the ice falling off the evaporator and what i actually found in that video was the curtain.

Switches were flip-flopped and that was causing an issue, but i believe that the curtain switches had been flip-flopped for a very long time um. But what happened was the restaurant just recently had the ice machine cleaned and the ice thickness probe wasn't set correctly? I feel like it. This is just you know, my guess, because obviously i don't know for sure, but i have a feeling that the ice machine had been operating that way for a very long time, but the ice was being made so thick that it didn't really make a difference that The the curtain switches were flip-flopped okay, but once the thickness uh started getting smaller on the the ice thickness. Basically, i believe that's when the problem really reared its ugly head.

When that you know we have these restaurants that hire these um cleaning companies, uh filter, changing companies, whatever you want to call them and they'll come in and they're just like national chain cleaning companies, you know, and they just go across the country, doing all kinds of Different stuff, i tend to find because they're, not specialists per se in ice machine repairs that things tend to get overlooked. It's a benefit for me because the service calls that are generated from those from those guys are great and they keep me super busy. I really would think that it sucks for the customer, because i could only imagine that the service calls generated across the country are the same that they are here in my area. But hey i'm just happy to get these service calls and be able to charge the customer to fix these issues.

So i really don't push the matter too much on that one um. Let me see. I had some comments about a walking cooler, video that i did. It was called big picture, walking, cooler, service call, okay, um and uh.

It wasn't really negative. It was kind of a funny comment, but i do get these comments a lot. So i kind of wanted to address it. Um you know, and the person had commented and like i said it wasn't negative.

There was nothing bad he was saying, but he he kind of jokingly guessed about a third of the way through the video when, when i diagnosed it as having two bad condenser fan motors, he said ha, i'm surprised, you didn't change all the equipment, you know and Then he commented the next day. Oh wow, i finished the video, i guess you did change all the equipment. That didn't surprise me. You know just kind of jokingly and again he didn't mean anything by it.

Um and i didn't take any offense to it or anything. But you know i do want to say, though, that i am not the ones telling the customers to change this equipment, so i work for big restaurants and all that i do is just give them repair quotes and give them information. So in the situation of that video i went to the customer and i said actually i didn't even give them a quote. I just changed the condenser fan motors and then we returned to clean the evaporator and the evaporator was rotting away.

So we got the system operational, we were done, it was working and then we just told the customer hey, the evaporator is totally rotted out. You know you may want to address that in the future and then the customer, just you know, they're very, very proactive about replacing equipment at that particular customer. So um they change, equipment left and right. And that's why i always say in my videos like i wouldn't be the least bit surprised if the customer changes this.

You know when it comes to exhaust fans, air conditioners, refrigeration, equipment they're on top of it, so i'm assuming that it financially makes sense to them. I have no control over that. For the most part, i don't get to sell the customer, the equipment they buy the equipment themselves, so i'm just the guy that goes and installs it for him. So you know i just kind of am thankful that i get to do that work again so um.

Another video that i had was called. One service call turns into another uh. That was an interesting one because it started out as a service call on a reaching cooler, and i couldn't really find anything wrong with the cooler other than the things that i'd already told the customer. That was wrong with it.

Basically, they needed to replace it, but i didn't just stop there. You know, i noticed it was a little bit warm in the kitchen and that could definitely affect the way that their poor equipment was operating. So i went onto the roof and i found that the kitchen ac wasn't working and then, after going through the kitchen ac, i found that they had an exhaust fan, not working. So it's that whole big picture mindset, i'm there to fix a reaching cooler, but even though i knew that the region cooler was trash and there wasn't much i can do - i still evaluate it like it's the first time and looking at everything saying hey, you know What it's a little bit warm in this kitchen, so i know this cooler works, but it probably doesn't work as good.

You know as it could, when it gets warm later in the day. You know, therefore address the kitchen ac problem which, while working on that led to the exhaust fan problem, so that was a good two days worth of work all for a reaching cooler that i could have simply just walked up and said. I told you guys to replace it, or i told you i gave you a quote to fix it and i could have walked away and they probably would have called me later, but i was there, you know, so it's it's looking into that. Looking at the big picture, um, you know being honest, not ripping anybody off we're, not at least the way that i operate.

My business. We are not here to create work, we're not here to be dishonest or anything. I'm just here to report everything to the customer. Look, this is the shape of the equipment.

This is what needs to be done and let them make the decisions and i'm again thankful that i'm there to be able to do the work for them. So um, let's uh the last one that i did was the bar regions are too warm, and that was an easy one. But again with the whole big picture, mindset service call on a set of bar coolers. Not working.

Uh was low on refrigerant super easy. When i opened up the condensed unit, there was oil all over the the liquid line, and i found a loose flare. Nut. Okay, tightened up the flare nut, topped off the charge done, but i didn't just stop there.

Even though i found the leak on the roof, i still returned and did a leak check on the evaporators. Now i didn't find anything on the evaporators, but i'm doing my due diligence to be thorough to make sure that we don't get a call back for me. Guys call backs are worse than anything. Callbacks are when the customer loses faith in you when a customer loses faith in you, it's hard to earn that back.

Okay, i try to tell this to my guys. You know when and everybody gets callbacks, but it's it's trying to limit them as much as possible. Okay and it may seem like not a big deal, you know hey, you know what you go out and you forget to turn a switch on. Okay, no big deal.

I got to go back and turn it on. You know: okay, you don't charge the customer, but the damage is already done. Okay, that when they lose faith in you, the damage is already done. It doesn't matter if you're charging them or not.

They lose faith in you. So now, the next time that you go out to do that service call they're, gon na look at you and be like hmm. This guy left my equipment off last time. Can i trust that he's gon na do this right? Okay, so being thorough, is so important, okay to try to prevent the callbacks at least that's what i preach all the time to my guys, so all right um, let me see uh ali ali - am i familiar with ac plus and victorville? Yes, i am very familiar well, not very familiar, but yes, i am familiar with ac plus, i know of the owner of ac plus.

I personally don't know him, but i know of the owners - i've known of them for a while now so um all right. How would i set the superheat for my txv when there is an epr valve in the circuit you've been told you need to open up the epr valve to get the correct, superheat gary carnell? Well, gary epr valves would not be my specialty, so i'm not really going to go into that one. I apologize bud, but i'm not super familiar with epr valves, so yeah all right, um. Let me see what else we got in here.

What am i missing in what scenario would i use compression ratio calculation in the field? Uh? Pat, you know. If you know what the proper compression ratio should be? Okay, you can use compression ratio to diagnose bad or weak or uh inefficient. Compressors, that's a great way to use compression ratio, so uh copeland may say that hey a properly operating compression ratio at these temperatures should be between here and here, and if your compression ratio doesn't meet within a set set number of variables, then that could help you To diagnose an inefficient compressor, so that's one good place where you can use compression ratio all right. Uh copeland has a great app that uses compression ratio, kind of a backwards compression ratio.

It's called copelan mobile and you can actually analyze copeland compressor operations. They'll ask you for a set number of variables. They ask you for suction pressure, liquid pressure voltage coming in something like that uh and they can determine compression ratio and tell you if the compressor is within an operating envelope, so check out the koplan mobile app for sure all right. Let's see what else we got in here, um uh.

What do i think about the weibo connections? I'm assuming? Maybe you mean um, the uh waygo connectors, possibly wiggle connectors the electrical connectors uh. You know they're they're kind of popping up in my area, but they're not super popular right now, if that's what you're talking about, i see them in a lot of the r290 coolers, because you're not really supposed to use wire nets on r290 coolers, so wagos have Quickly become very popular, i they're not super cheap for me yet so, and they're not available at my local supply houses. Certainly, i could go searching electrical warehouses and things like that, but i i just like to go to my my main suppliers to pick up my materials so, but i will say i like the wego connectors that have the releasable arms. They seem convenient to work with.

As far as longevity, i don't have experience with how long they last so i don't know, that's something wire nuts have done me really well, and i've had no issues with wire nuts. So all right, let's see what else um. What's the oldest package unit that i've worked on, that was still in service uh, probably late 70s, a late 70s package unit would be the oldest that was still in service. I've worked on some carrier split systems from the 60s before i actually removed uh one of them and replaced it.

That thing was a beast to try to replace. That was a chore man, because it was of all things. The weirdest thing that carrier split system was located in the attic and on the old commercial carrier split systems. I think it was a 10 ton, so it used to had used to have a carlyle compressor in the evaporator and air handler assembly, and then it just had a standard condenser on the roof.

So getting that evaporator air handler assembly out was a nightmare. Hey pat, thank you so very much for that super chat bud. That is amazing, and i really really appreciate it. Um.

Let me see what else we got in here, uh yeah, all right. I asked about sizing, walking, coolers and freezers. What's my take on it chris young, okay, so, yes, i did ask on all my social media platforms about sizing, walk-in, coolers and freezers. The reason why i asked about that was, i kind of just wanted to get your guys's input and figure out how you guys do it now.

I have done my own load calculations myself for many years. I lost trust in my supply houses just because there was too much guessing going on and i like to know for sure why we size equipment the way that we do there's a lot of things that led to me not being very confident and just trusting what A supply house says so um. I quickly learned how to do load calculations myself. The reason why i brought the whole topic up was because i'm actually working on a video project.

I it's still in the works. I don't want to go too much into details, but it's going to be a video project that uh has to do with load calculations and different things like that, so um stay tuned, it'll be coming out on the channel uh. I i plan on trying to make the process a little bit easier and explaining a few things so, but you'll see once we work on it. I actually have a conference call tomorrow morning, super early in the morning with some important people that are going to help i've been bringing in a lot of contacts and different ones and getting information.

This is kind of becoming a video where i've been doing a lot of research on and stuff. So that was the whole point, but yeah i do my own load calculations. I prefer to do it that way. It's interesting too.

Once you start doing your own load calculations, and then you compare to the equipment you're pulling out compared to what the actual load is calling for. As far as the equipment, size and you're going to find that there's a lot of oversized equipment out there, like massively oversized - and it's really interesting, to know that you can go in with something half the size and sometimes it'll work flawlessly. So very interesting. All right.

Let me get down into here, um, okay, what is my favorite feel piece tool? Um man there's so many. I really dig a lot of the field piece products uh, the the vp85 uh vacuum pump is awesome. The mr45 recovery machine is super cool. I like some of the the features that the mr45 has.

As far as a high and low voltage, i had an incident where i had low voltage. I had a bad receptacle and i didn't know it i plugged in the pump and the pump itself, the recovery machine uh said: hey low voltage and it shut itself off, which i thought was really interesting before it damaged the machine. I do like on uh one of my other favorite tools that fieldpiece has is the meter that i use the sc480 because it has the phase rotation testing on it, and i really dig that so lots of great tools from field piece um all right. So, let's see what else uh um, let me see what am i missing here? Oh i see someone's saying i i need to request my play button.

Oh okay, yeah i'll, look into it again, i'll, i'm sure i'll. Do it one of these days, but it's just not a massive massive thing: uh i already kind of covered it a little bit but i'll say it again, i'm doing better with my back. It's still pretty sore right now, it's actually in my neck and in my arm um. So this live stream, probably won't be as long as it normally is, because it's already painful but we'll get through the questions so um.

Let me see what else we got in here. Any comment on the new protalk multiverse after pro talk fallout uh. That was interesting. So the the facebook group hvac pro talk was completely deleted via facebook because of i don't know a bunch of drama or something i have no idea yeah.

I don't know now, there's like four or five different hvac pro talk groups. It's interesting, no, no comment on it really. So all right, uh, let's see what else, what hvac unit have i worked on that i don't know anything about um the trane intellipacks kind of intimidated me uh when i've worked on those because i'm not a certified train tech, but train has always been kind of Confusing to me with uh, because they're kind of secretive, with some of their information, it's out there, but it's kind of hard to find it on how to work on their equipment and stuff. So trains have always been a little confusing and frustrating to me.

Not the refrigeration circuit, but the controls train has always been very, very uh interesting with their controls. All right. Let's see what else we got in here, um am i missing. Uh is the leaking factory solder common on rdi and wrestle evaporators in my recent videos? Is it common no um, not really the russell evap or the rdi evaporator uh? I will say that i don't think that it's kind of confusing when you start working on some of this equipment.

You start to notice trends like um, my customer buys rdi equipment and when the evaporators come they're, almost identical to russell evaporators or htpg evaporators right russell coldzone, a couple different companies they're all merged together, um. So the question is who's. Making the evaporators is is russell. Making them is someone else making them uh in the video where i had a refrigerant leak.

I honestly don't think that russell uh was the one responsible for putting that coil together. I believe either rdi did or some other company because it just didn't it wasn't the standard components that russell uses and stuff. So who knows, but it's not it's not common. That was just a frustrating one um.

How often do i have tech training with my team? Well, you know, of course i always encourage it's. We don't necessarily have formal tech training. Okay, i encourage my guys to watch my videos. That's the whole point of me, making these videos and then we will oftentimes have a meeting in the morning.

We all meet at the office in the morning and we'll discuss like weird technical things that we had going on um and then you know we'll go out and work on things together or we'll do startups together and things like that. So we're all kind of working closely together, but we don't do formal. You know training once a week or anything like that. No i'd love to, but you know it's not always cost effective, to be able to do that.

So all right, um, all right. I'm gon na go ahead and uh get on to my list of things to talk about so um. I had a question and it's a pretty good question. So someone who's gon na be doing their first walk-in freezer equipment replacement had asked me hey what are some important things to know before doing their first installation of walk-in freezer equipment? Okay, the first thing, i'm going to say, is: if you're doing an installation of walk-in freezer equipment, you need to understand the general sequence of operation as to what's going on.

Obviously, you want to read the installation manuals whenever possible. Is it a new conventional system or is it i'm sorry, is it an old, conventional walk-in freezer system, or is it a new smart, evaporator system? All of those change you know every smart evaporator is not the same. Are you working on a heat craft, uh, intelligent, evaporator? Well, those have eevs or electronic expansion valves, okay and they don't use liquid line solenoid valves all right. They also need a dedicated power source going to those evaporators.

You can't share the power source with the outdoor unit if you're replacing a conventional system, conventional systems, walk-in freezer systems. Typically, the outdoor unit main power went to that and then it sent power to the indoor coil and it was powered by the outdoor unit. But if you're working on a new heat craft, intelligent or beacon - or i can't think of what the new they have a whole bunch of different names for their new systems, if you're working on any of the new heat craft stuff, you can't use the power source From the outdoor condensing unit to power, your evaporator anymore, there's all kinds of new stuff so reading the installation instructions is key when it comes to doing installs on this equipment. Okay, you learn so much when you do that, and i know it's frustrating and boring.

But even i learned stuff i'll tell you a funny story. I did an installation of a manitowoc ice machine. I've done so many manitowoc ice machines installations. Um matt, i was came up working on the manitowoc q series machines and then working on the s series.

Machines did a ton of them and then we got this new uh indigo series machine and i went to go. Install my first indigo quiet, cube ice machine. So if you aren't familiar with the manitowoc quietcube ice machines, the compressors on the roof, with the condenser in the rece and and the accumulator and then downstairs at the e, the the head unit or the ice head - is two evaporators, a receiver. Some expansion valves and you have a liquid and suction line, traveling between the two okay, so or a liquid drain.

I guess you should call it a liquid drain coming down and then yeah. That's what it is. You have a liquid drain coming down, but so i did my first installation and we went to start up the machine and the machine wouldn't work, and it was funny too, though, because when i did my first installation, if any of you have ever installed a indigo Machine or any of the new machines, or actually the indigo machine, it came with a role of thermostat wire. Well, the first time i did this installation, i opened up the line set box that the customer sent me and i'm like hey.

They sent me a residential line set because there's thermostat wire in here and i just threw the thermostat wire away hooked up. The machine started it up just like normal and nothing happened. Well, it needed that thermostat wire for communication from the upstairs to the downstairs unit and because i hadn't read the installation instructions. I didn't know that so myself and another guy are going crazy, trying to figure out why this machine's not working.

Why, when we open the valves, it doesn't turn on like the old s model, machines did and then my buddy said: hey dude, did you read the instructions and i said no, and he goes, i wonder if those therm that thermostat wire, that you threw out had Something to do with it, so we go get the installation, instructions and sure enough. You had to install the thermostat wire, so i was super comfortable and i didn't think i needed to read the instructions they had made a change and i just ignored the fact that it came with the thermostat wire came with it and i was wrong. So it's really easy to get caught up in that stuff. So when it comes to installing walk-in freezer equipment, read the installation manual understand the sequence of operation, and that is going to take you the whole distance.

Okay understand how to properly pipe refrigeration lines. Did you know, and if you didn't it's okay, but did you know that when you're installing a condensing unit, i don't care if it's residential commercial? Whatever did you know that on a residential air conditioning system, if your condensing unit, your outdoor unit, has a 7 8 and a 3 8 line, you know line sizes on the outside of the condensing unit? Did you know that that doesn't mean that's? What size refrigeration lines that requires, just because it has 7 8 3 8 at the outdoor unit, doesn't mean that you're supposed to run 7, 8, 3. 8. All the way to the indoor unit, and vice versa, in refrigeration, walking cooler equipment, has a three quarter and a 5 8 you know lines on it does not mean that it requires three quarters and five eighths it might be bigger, it might be smaller.

It all depends on the oil return and the velocity that you need that refrigerant to go to move through those lines so reading the installation, instructions are going to tell you that. Did you know that if you have a walking cooler evaporator and you need to and it's brand new when you're doing an installation on it and you need to install a liquid line? Solenoid valve you don't necessarily install a 3 8 liquid line solenoid valve just because you have a 3 8 line coming from the outdoor unit. It doesn't work that way. You size the solenoid valves by looking at the manufacturer's installation instructions, and it's not completely unheard of to have a solenoid valve that has bigger line size connections than the actual liquid line coming into it.

You might have to use reducing fittings or or whatever to make it work so reading the installation. Instructions goes so far, guys all right. Let's uh, look at the chat and see what i'm missing in here and there goes the coke nose um. Let me see you started with the b series there dirk yeah.

I came in at the q series, so um yeah, that was the early 2000s, was when i really really started getting into the trade. How does a tech become better at understanding, low voltage, wiring on residential systems? Well, that low voltage can be tricky, especially on residential that if you have thermostats, if, if you don't have a good ground source, it can make it a little bit harder to learn how to troubleshoot that stuff. I would highly suggest my buddy brian orr has some great articles on thermostats and uh floating uh commons and why transformers need to be grounded in some situations and so definitely go check out my buddy brian's website hvacrschool.com he's got some great information and, while we're talking About brian, i'm going to go ahead and confirm this. I've already said it a few times before, but brian has a uh a training.

Uh he's called it. His training symposium coming up here in less than a month, and it's going to be physically at his offices. In florida, uh claremont florida is where it's going to be at, but guess what? If you can't make it to brian's training sessions? Let's see the training classes are going to be uh march, 11th, 12th and 13th. You can purchase online tickets to be able to view the training classes online.

I am actually going to be doing a talk. It's not really a training class that i'm going to be doing. It's going to be more of a sharing some videos and different ideas, but my video thing is going to be on thursday. I think at the end of the day, and as far as i know, mine will be uh li.

I might even live stream mine on my channel. Okay, if you're interested in in checking out brian's training, symposium uh, it would be something really cool. I was physically in person last year at the training symposium and it was amazing. I can only imagine it's going to be better this year.

He's got some real, real, great educators that are going to be teaching there on all different topics, so definitely check that out and if you want more information to that that training symposium go to his website. Hvacrschool.Com, there's a big giant banner click on that, and it has all the information on how to get tickets and all that stuff, even the online tickets. If you don't want to attend in person, so let me see how do i fix a motor that is powered when you turn off the unit? How do you fix a motor that is powered when you turn off the unit? I have no idea, but i get power to turn off to the motor. I guess i don't know how do you fix a motor? I don't.

I think i might need context to your question there. Joshua um either send me an email or try to post it again in the chat. If i don't answer it in the chat, then send me an email to hvacr videos, gmail.com, so um all right have. I noticed that a lot of r290 compressors are going bad, especially on freezers, uh ray reef mechanic.

Actually, i haven't had that problem. I work on a lot of dell field equipment, though, and some of the true stuff, but more dell field. I'd say: like 95 percent of the r290 stuff, i'm working on is del field, and i haven't had too many compressor failures. If any, maybe one and i work on freezers, coolers all that stuff uh, no, not not too many failures.

I've had most of my um problems with r290 have been uh refrigerant leaks because the they were not installed properly. The equipment was not put together, properly and tested properly, and it's been like braze joints that have failed and stuff like that. It's v uh pressure. I've had the high pressure control failure rate on a lot of the dell field units, but that's about it so um, yeah, dallas fan ralph from honeywell is in here too honeywell is going to be participating in the hvacr training, symposium uh they're, actually, a big sponsor Of the training symposium and while i got it right there, my buddy ralph here is from honeywell and ralph is the man if you guys have been watching these live streams? You guys probably already know this, but ralph is the man when it comes to refrigerant related questions when it comes to blends retrofits and all that stuff.

If you guys haven't already noticed, we've got a lot of new requirements and different things rolling across the country. Right now now, here in california, we've actually already had these these mandates and requirements, but they're rolling across the country uh with new requirements about changing your equipment over um. You know not using certain high gwp refrigerants anymore and different stuff like that, and eventually the entire country is going to be there. I mean guys as frustrating as it is to be honest with you.

The rest of the world at least the civilized world, for the most part, um has already way farther advanced with um eco-friendly refrigerants and different things like that. We in the united states are actually way behind par when it comes to the european countries and uh. It's kind of insane. You know r22 is actually illegal to use in a lot of the european countries and uh topping off the refrigerant charge on equipment that has refrigerant leaks is actually illegal in a lot of the european countries like straight up illegal, you have to turn it off until It's fixed like there's, no topping off the charge like here in the united states.

We're allowed to do that right, um. You know we're allowed to uh. As far as i know, and the rules are all changing. Uh almost seems like daily these days, but as far as our refrigerant charge is under 50 pounds, we can just continue to top off the charge top it off top it off top it off top it off now, once the charge, my understanding is, goes over 50 Pounds then you can still top it off, but you have to come up with an action plan on how to fix these leaks and stuff like that.

So here in the united states, we're still allowed to use r22 can't be produced and can't be imported, but we have stockpiles of recovered r22 at our local supply houses and they clean it up and you know get it all back up to ahri standards and resell. It and we're allowed to continue to use that until the foreseeable future. So but we have a lot of new stuff coming out things like r404a, not being able to use that anymore you're having to change over to alternative refrigerants. And that's where my buddy ralph comes into hand there, because ralph has lots of great information on how to convert your equipment over what steps need to be taken in doing conversions? Do you need to change the expansion valves? Do you need to change the orifices, or was your expansion valve and your orifice marginally, or you know sized appropriately to where you don't so reach out to my buddy ralph? I put his email in the chat right now.

Uh ralph is with honeywell refrigerants and he can get you all that information he's really cool dude. So all right, let's see what else we got going on in here um. How often do i charge beer cases to beer can cold uh. I charge them to nice.

Shiny clear sight, glass really often all right uh - that is exactly it. Dallas is ralph, but ralph is not liable for anything. Dallas says that's right, so dallas is ralph, but dallas is not here on official capacity from honeywell refrigerants, but do me a favor and send him an email if you have any questions so all right, let's see what else we got going on in here um. How often do i go through a pair of gorilla grip, gloves uh i actually burned through them pretty quick.

I used the gorilla grip gloves from home depot. Not gorilla grew, and no, i don't put that crap on my hair, like some stupid people. Okay, here's your sign kind of a thing, but the gorilla grip gloves. They might last me a week or two depending on how much i'm working, but i really do like them.

I usually buy them in bulk and big 25 packs or 50 packs, and then they last a long. I mean they, you know, do okay. I try to use them accordingly, though so uh will i be in florida, no zack, i won't. I won't be in florida.

I will i kind of already talked about that a second ago, but i will be um doing a live cast on thursday evening, though uh at the training session at brian's event. But i will not be there in person this year, uh, i'm too short-staffed and can't get over there because of this stuff, so um guys uh, zack quality hvacr. I at the tail end of this i saw that he posted a video. It's been a project that he's been working on for a while, so definitely go check out.

Zach's youtube channel um can one of the moderators post a link to zach's youtube channel in here quality hvacr, because i don't have to pull that up right now. If you guys could do that that'd be awesome um, but go check out zach's channel uh he had asked me. I haven't had a chance to watch it, but he had asked me for like a little clip um because he wanted to do a video project together and i gave him a little clip and i think he ju. I think that's what he just released right now, because he tagged me in the video so um but check it out.

Zach's got some cool stuff on his channel. He does some really awesome installs. So all right, um thoughts on ultrasonic leak, detectors, jeremy, i've, okay. So here's the deal there was an ultrasonic leak, detector company - i don't know if i've ever said this or not, but i can say it so.

There was an ultrasonic leak, detector company that reached out to me, and they said: hey we'd, really like to get you to try our ultrasonic leak detector and, at the time i was, i was really kind of torn about taking free tools for this youtube channel. I really never wanted this youtube channel to be a tool review channel by the way um but uh. I went ahead and had him send me a leak detector right, an ultrasonic leak detector - and i tried it out for about two months and to be honest with you, it wasn't for me. I didn't find any value in it.

I didn't find any use in it, but let me say: i'm not saying they're worthless, i'm not saying they're useless. Just for what i do. I didn't find a good use for it. Now my buddy rick over at uh hvacr survival.

He love or doesn't love, but he likes his ultrasonic leak. Detector rick likes having multiple methods of leak, detection and the ultrasonic does help him and has found leaks that he couldn't find otherwise. Okay, i personally didn't care for the ultrasonic in my situation, so i don't want to talk badly about them, but they didn't work for me or it didn't work for me. So what i ended up doing to that that tool manufacturer because they wanted me to make a video about it and i just told them i said i can't i don't want to make a video about your product that you sent me for free.

You know if it's going to be negative, because i had no good use for it, so i just sent the ultrasonic leak detector back to them and just said thanks, but no thanks kind of a thing. So with that being said, i already said this before i'll say it again. I have a youtube channel called hvacr tools. I haven't posted much about it.

We have a lot more people in here, so i want to say this again: we haven't posted much on that youtube channel. Actually, i've only posted one video. I think i've had it for a couple years now and i've posted one video. It has a bunch of subscribers.

Well, i really wanted to start posting to it, but it's just been a bunch of pressure on me, so i actually brought my friends in okay, the overtime crew, so myself, joe bill and adam, are all going to start posting videos on that youtube channel we've got Some really cool videos coming down the pipeline. I actually just ordered uh three of the new testo 550 manifolds and i actually ordered one of the testo 550i manifolds and all of us are getting different ones, so bill is going to get a 550i and the rest of us are going to get 550s uh. We're getting the new wireless vacuum gauge and we're going to test them out and start making videos about them, letting letting you guys know what we think about it. Uh we've got some other videos coming out too.

So definitely go check out that youtube channel and and subscribe to it. If you haven't already i'm going to post a link in here, real quick, this is to the tools channel. We've got some other things coming down the pipe too some new refrigeration technologies tools that are coming out uh. I believe we're going to be able to do a blower door, testing video because adam just bought a blower door, uh plan on doing the new veto, rolling backpack, some thermal imaging camera videos, so lots of cool stuff coming in it's not just going to be me.

So i think the posting is going to be a lot more often because my buddies are able to post on it too so check out that youtube channel um all right, let's see what else we got in here, uh, am i busy in california? No, i am absolutely dead uh we are. I've had a guy off for over a week. Over probably two weeks now, uh we've got no work for him. Um i've got one guy working today, i'm off because of my hurt neck, but yeah we're dead right now, because the restaurants they're they're only doing emergency repairs because they're not allowed to have people in their dining rooms right now, so they're, just in survival mode.

So we are absolutely dead. Um, let's see uh the machine guy you're saying you're getting into hvac. Do i have any tips on getting started and what training is needed? Um wow? That is a loaded question, bud uh. What i want you to do is uh.

If you haven't already and you're researching trade schools get involved in a trade school, whether it be a private or a public, one be cautious about signing up for long-term programs where you have to pay up front and that kind of stuff, because some of the private Trade schools can be really expensive, so just make sure that if you do sign up for a private trade school that it's something you really want to do and make sure that if you don't like it, you can get your money back. You know what i'm saying the cool thing about: the public like community college type programs. Is you pay per class, so five six hundred bucks you pay for a class, you find out you don't like it you're only out five or six hundred bucks and you're, not out. You know, anywhere from 12 to 18 grand for some of these private schools.

So be very cautious about that. I'm not saying the private schools are bad. I'm just saying be cautious about signing up. If you you know just in case, you change your mind or something okay uh, my buddy brian orr, has an amazing training website called hvacrschool.com.

Definitely check that out lots of great information, and obviously you see my videos and stuff on my channel so feel free to send me an email to hvacr videos gmail.com, and we can certainly talk a little bit more about it. So, let's see what else we got on here, uh, let's see what am i missing um? What is the purpose of the overload clicker on capacitor powered relays, the overload clicker, so i'm assuming that you mean the bi-metal disk. The thermal overload on a compressor is what i assume that you mean and if that's what it is that i think you're talking about the bi-metal disc, i actually have one hold on. So what we have right here is a clicks on thermal overload.

Okay, it has a bi-metal disc that will actually flex when the current gets high enough and it will break the contact between these two terminals. So it's simply there to keep a compressor from overloading or overheating so yeah. These things are great in protecting the compressors and they're very important. So i'm assuming that's what you're talking about you always want to replace these with the factory oem overloads, okay, be very cautious about using universal start components, and things like that, because oftentimes these clicks on um overloads can be incorrectly sized and it may not protect your Compressor, so the purpose of this right here is to protect your compressor in an overheat situation or an overload situation, and it turns it off before the compressor gets ruined.

Okay, what happens if you have low voltage coming into your compressor? If you have low voltage from a bad receptacle or whatever, this might catch it and protect your compressor from burning up from burning the windings in the compressor because of low voltage, because with the low voltage it's going to get hotter and hotter and hotter. And potentially this could save your compressor, okay, so very important. These clicks on thermal overloads, so all right, let's see what else we got in here has norcal dave been on the hvac overtime show? Yes, he has he's been on there before. I was part of the show uh we've talked to dave before and one of these days he will be on the show.

It's just been trying to find a good time to schedule between the two of us, but yeah dave's, a cool dude. We all find him to be a really funny. Guy he's all of you guys, watch dave's stuff, i'm sure you find him to be he's a funny dude, but he's a smart dude um. So yeah we'll have him on again soon, but he has been on there before all right.

Let's see what else have i used and what do i think about leak tracing methods? Do they gum up the txv's so um? I had a question on here: let's find, if i can find it so jason had asked me to in my my youtube comments. If i can't find a leak when i'm doing leak searches would i consider using leak sealers in the system? Okay, um? No, i'm not a fan of using leak, sealers or leak additives, uh, not even a fan of using dye or any of that stuff. I prefer to keep refrigerant and oil in the system, and that is it so yeah. I am not a fan of using that stuff alaska hvac.

Thank you. So very much for that super chat man. I really really appreciate that. Okay, um, that's funny uh, so i actually lost my train of thought on that one there, but oh yeah, the league sealers.