Hey guys how's everybody doing, hopefully you guys are all doing well. Today it was a rather hectic day for me today, just uh just kind of a crazy Monday. We had a. I was on call this weekend with another tech and we had a few calls or he had a few calls over the weekend, and I had to go help him out last night once on one of the calls and then so it kind of made for a Little bit of a late night, not too bad, I mean it was a walk-in freezer and I think we left there around 9 p.m.

so it was only about a half an hour from my house, so it wasn't, it wasn't too bad. I got home pretty decent time so and then this morning was just a normal day, but then it kind of right. In the middle of my day I had done a regional service call early this morning and then it just kind of started off a little hectic. Just like a normal, you know whatever morning.

I grabbed my coffee this morning and went out the door and then just I don't know it was just a crazy day and then, though I don't know 10 o'clock, I got an emergency service call where we had an exhaust fan down and I had to run Out about an hour and a half away from my shop out to the Coachella Valley, which is quite a ways away from our office, and how to get out there in a hurry, because a restaurant lost an exhaust fan and basically it shut down the whole restaurant. Because they can't operate with that exhaust fan, so it made it for hectic because it ended up losing some bearing a bearing blew out on the the inner bearing on a utility fan. So it was like kind of a pain in the butt I shot. Some video I'm gon na see, I haven't really reviewed the footage to see you know well anyways, but yeah.

So I shot a little bit of video and then I got out of there as fast as I could, and I literally made it back. I got home about 25 minutes ago, so usually kind of feel a little rushed right now, because I'm usually home. You know about an hour before the stream and then I can kind of prepare and go through questions and you know, send out, invites through emails and different things, but it is what it is. I'm here you're here.

So let's get to some of these topics. Um I'll be happy to answer your guys's questions if you type them in the chat. Do me a favor, my moderator, Justin and myself try to pay attention to the chat as much as possible. So if you guys do put questions in there throw them in a caps-lock for because it helps us to make sure that we get to them so and we'll see what we can do.

Okay, hopefully you guys had a good week and just hopefully your started off a little bit better than mine, but I mean again it wasn't horrible. It was just kind of a hectic day. You know trying to Monday's are really the only day that I I want to get home at a certain time, so that I can make it to these streams and I'd like to be home by three o'clock on Mondays, which is kind of difficult in the middle Of the summer, but it just gives me time to prepare I'm not a last-minute like I like to be prepared, and you know dot my eyes and cross. My T's and you know, have everything all organized and even though you know this set up with this stream is pretty streamlined, it's still kind of hectic when I'm not used to my normal routine of getting home, you know an hour and a half before the stream.

Basically so, but it is what it is, it's life it's how you do it so, okay, let me see okay, so why do restaurant exhaust fans still get dirty, even if there's a grease filter? Well, it's because the grease filter is it there's so much grease? Okay and the temperatures of the the grease as it's coming off of the fans so depending on what they cook at the restaurant um hamburger places are the worst hamburger places the the flat tops or wherever they cook the burgers that stuff. Just you know all that fat, that's in that meat, it just goes up and it just you know, vaporizes, basically and then once it gets up to the roof. Yes, some of it gets caught in the grease filters, but for the most part it vaporizes and goes right through the filters and then just blows everywhere up onto the roof, depending on which kind of burger restaurants you're working on it can be pretty nasty. Some of them not gon na name names, but you guys did you.

Restaurant work, probably know which ones I'm talking about doesn't matter which way you direct that exhaust discharge air, it's just gon na blow grease everywhere. So it's kind of ironic because you would think that the fryer exhaust would be the greasiest but they're. Actually not it's usually if it's a burger place, it's it's the burger hood, that's the worst! So all right, let's see what else I got going on here. Okay, cool yeah, thanks yeah, I do own my own business as Justin said so I work.

I have a business that I work with my dad him and I work together. We I've worked. This is the only only company I've ever worked for. I grew up working for my dad and then we partnered and now we run it together and he basically handles the office work.

And then I handle the fieldwork and we kind of you know help each other out here and there a little bit so, which probably makes sense, because you know some of you guys asked me one of the more common questions I get is. How is it that I can spend this much time on a call you know and then the response that they give me is, you know, usually their bosses or dispatchers are rushing them along. Well, I don't run my business that way or our business. That way.

We we like to get things done the first time, so we do tend to spend a little bit more time and be thorough as possible to try to make sure that we take care of the customers needs, and you know. Yes, it may take a little bit longer, but you know our call back rate is extremely low. Is you know I try really hard to keep that really low callback rate. So all right? Okay, let me I'm trying to field some of these questions here.

So when you human rights revolution, so you said what do you do when you check super heat chart and your target lands on an X instead of a number? I don't really know what you mean by that question. Maybe you need to send me an email and we can talk about that, maybe with some pictures, so I can visualize it so like when I'm working on the carrier, charging charts eye carriers, charging charts kind of a pain in the butt I use target super heat. The calculation comes from measure, quick is what I do so, I'm not really using a super heat chart per se. I'm using measure quick and it kind of just gives you an idea, but yeah I'd have to see your chart that you're using so that way, I can understand a little bit more and try to visualize that you're.

More than welcome to send me an email at HVAC, our videos at gmail.com, it should be popping up inside the inside. The the night box should be popping that up inside there, so I'll go ahead and paste it in here real, quick, so control V. There there's my email right there you're feel free to send me an email, hey wink. Thank you very much man.

I really appreciate it. That's really cool! So, ok, let's see you went back and watched my show Zack and answered the questions. What I think you're talking to Zach, okay gotcha, let me see here: okay, I'm gon na get you some of my topics here, real quick and then I will see some more the stuff here in just a minute. So, okay, one of the things that I want to point out that I get a lot of questions and - and I know those of you that have been watching my streams and my channels for my videos for a while.

My videos are not based for homeowners. My videos are not based for restaurant owners. My videos are based for service technicians, that's what they're meant for so I purposely don't show everything inside my videos. If I skip steps it's because of that reason, I never want to be a DIY Channel.

Okay, I never want to teach someone that doesn't know anything about air conditioning how to work on air conditioning now, if, if you're a technician - and you already know the basics - then that's what my channel is for yeah, you know so I'm basically gon na skip the Basics, I may fill in a few gaps, but I'm not gon na show you guys step-by-step how to do certain processes such as this is how I, like my oxy, acetylene torch. This is what I set my regulator's that this is where I set my pressures. When I you know, I don't do that. Okay number one! It's a liability, but number two! That's not my job! That's what trade schools proper apprenticeships for proper reading! You know! That's that's! Where you need to get that information from not from a youtube video, okay, the goal of my videos is to fill in some gaps and show you guys, tips and show you interesting things that I run into a little side.

Note for those of you that don't already know my channel - and maybe this brings some context in my channel, my channel is actually meant for my employees and it kind of you know, went in a different direction when I made it public, but originally this was just For my employees, because we used to have meetings every morning and I'd be telling them about a job and I'd find myself talking to the guys forever in the morning when it's like hey, I started shooting little video clips. Instead of trying to you know, explain something to him: that's when I started doing these videos. Okay, so you know I show them or I started these for my guys and then it you know I decided to go and make them public and it's obviously gone a little bit further than that, and I do try to cater to some things for you guys To show cool stuff and different things, but, for instance, you know the the my plan on the video that I shot today on the exhaust fan. Is you know I can't? I didn't have a tripod with me and I didn't have a GoPro with me.

So I literally had to start and stop the camera every time I went to the next step, so you're not seeing me doing the whole job. You know you know, I showed different things and you know explained things along the way to try to make it easier for people. So all right, one of the other things that I wanted to talk about. Oh, this is a really good question and I'm gon na answer this really quick.

So someone had asked me in the the the YouTube comments it was on the video with the glycol unit because it had 134a refrigerant in it and they had asked me well, what's the difference with going to autozone in getting the 134a refrigerant in a can? Okay, you don't want to do that. I wouldn't even suggest using that 134a. That's in a can at the auto parts stores on your cars. Okay, they add all kinds of additives and different things into that refrigerant.

They add leak sealants, they add dyes, they add it. Sometimes I'll have Pat oil in it. You want to be very cautious about using that refrigerant. If you're going to be on your cars, I'm saying don't ever use it on any kind of refrigeration systems, because the additives, the oil, that's in it different things, you don't it's, it's not good for a system.

You know normal refrigeration system. So that's a no! You cannot use the cans from your auto parts stores to work on your refrigerators so and more than likely - and I mean I'm - not - I'm not talking crap to people but more than likely. That was someone who's, not in the industry and they just had an honest question on whether or not they could do that. They'd have to find all kinds of adapters and different things to, but that's a whole nother thing.

So, okay, let's go down here. Okay, as far as the hats go, I'm still working on the hats, guys that the the merch and stuff I'm running into a brick wall with it. But I haven't even received my shirts yet they'll be here any day. The hats are gon na be a little bit further behind, because I'm still waiting on some samples, but I still haven't quite figured out how I'm gon na get those out to the masses.

When I was looking at the merch, you know I kind of went backwards and I bought the merch first and then I'm trying to figure out like how I'm gon na distribute it and do different things, and you run into a lot of problems with that when It comes to sales, tax and shipping and all kinds of things, and it just kind of seems like a headache but one way or the other I'll figure out how to get shirts out but still working on it. As far as the hats, they're gon na be a little bit further behind, but they're gon na be similar to what's sitting up there, but just haven't gotten my final hats. Yet so all right, okay, so crazy! Floridian, you says: is it easy to work for an HVAC company? You are choosing your job and you're more interested in joining an HVAC company clay, crazy Floridian. It is a great job.

Okay - and I would say I'm assuming that you're in Florida, because you're crazy Floridian - is your screen name you're gon na have all kinds of work. Year-Round. Okay, HVAC is a great career. It's a very good paying career.

We are short HVAC technicians all across the country. So everybody is looking to hire good technicians, I'd highly suggest talking to a local company that does service in your area and asking them what the best steps are more than likely is enroll in some kind of a community college program. I would highly highly suggest that you not go get a fifteen thousand dollar education right off the bat with like a private college or something like that, because I'd hate for you to spend all that money and find out that you don't like this job. Okay, not knocking any of the private colleges, but I'd highly suggest that you look into like a community college.

Take a night class see if it's something you're interested in and maybe you can get an apprenticeship with a company in your area. That's willing to teach you and you can kind of work during the day go to school at nighttime. Again, you, you know, I'm not saying that you shouldn't go to a private college, but I'm just saying you maybe want to put your feet in the water and make sure you like it before you spend a bunch of money on a school. So, but it's a great job, so alright um see what we got here.

Okay, if I don't answer your guys's questions, I see stuff scrolling by go ahead and throw them in there again and I'll try to get to them. Okay, I'm gon na keep going through. My list right here, oh yeah - this is another one too for those of you that don't work in restaurants, so my personal preference I work in restaurants. I've worked in him for 17 years longer than that, but officially for 17 years food restaurants offer me food.

All the time I I'm not trying to sound like I'm on a high horse, but I typically don't work in nasty nasty restaurants. We choose not to work and those gross places, because it's just usually a nightmare. If the restaurants are really disgusting, then more than likely they're not maintaining their equipment or they don't want to pay bills different things like that. What what those that don't work in restaurants, see in my videos, if you think my videos are disgusting, they're, really not that bad! These are rather clean restaurants.

You know I may make some shocking just like screen captures or something like that or thumbnails on my videos, like I have an ice machine where it shows this. The the breast of the wire bristle brush that I pulled out of the distribution tubes, all nasty but guys that stuff is pretty normal. What I show in my videos really isn't that bad. If you're worried about like some food, that's in the bottom of the box or something like that - it's that's that's normal stuff! So, but as far as food, you know, restaurants offer me food on a regular and it's my personal opinion that I really don't take food.

Very often number one early in my career, I learned really fast that sometimes people will offer your food, but then they want you to take like an hour off the bill. You tell me how that equates, because if you're charging like anywhere from in my area, people could be charging from 90 to 110 dollars an hour. So you know to offer me a six dollar hamburger that cost you three and then you want me to take an hour off the bill and I don't think so, but I mean not all restaurants are that way, but I learned that some people have bad intentions When they offer you food, but you know one of the things too for me is I try to eat as healthy as possible. I'm not I'm not the perfect person in the world at all, but I try to eat as healthy as possible and also when I go home my family usually wants to go out to dinner and when I take free food from the restaurants, mtech dude.

Thank you very much man. I really appreciate it when I take free food from the restaurants I get burnt out on fast food or restaurant food and then, when I go home, my family wants to go out and I don't want to go out to eat. So I just made a personal choice: to stop accepting free food and I'm not saying I never do it, but you know every once in a while. I do, but so that way, when I go home, my kids or my wife wants to go out to dinner.

Then I'm not discussed at a food, you know eating out so that that's just my personal preference. As far as my employees, I don't mind if they take free food. Occasionally you know I try to tell them to like. Take it easy, you don't take it.

Every single time, I don't want my employees to feel like they expect free food when they walk into a restaurant. You know I want them to be offered food they've all been instructed to never ever ask for food. Never what I would suggest for you guys that are in the field that are working in restaurants is, is, you know, try to order food and then, if they say oh, oh, you don't have to pay for that. You know be willing to pay and don't don't feel bad if they make you pay, but I mean you know be willing to pay.

If you want to eat in there and then maybe you'll get surprised and they'll pay for it. For you, okay, it's just one of those things, but alright, let's see what else I got in here, okay, so chris cooley do i have to have a journeyman or master comp card to be in my position in california. No in california, we are a no licensed state for service technicians. Basically, okay business owners have to have a contractor's license and service technicians have to carry an EPA certification to be able to buy refrigerants and work on refrigerants, but that's it.

We have no certifications and no legal license that we have to carry as a service technician in California. Sometimes I wish that we had to have a license because I feel like it might weed out some of the bad Tech's, but at the same time, we're so limited on text right now that if I made people pass a test to become a service tech, we Probably would have even less so but yeah. I know no licenses necessary here in California, mr. Johnny boy.

Well, my company expand soon. No, we will not expand the most service text. I a DJ sub air. Thank You Man.

I really appreciate it in yeah Monday. I'm glad it's it's on the way out for sure. So, let's hope no more calls come in, but will I ever expand? No, I don't think I will. We are actually me and my dad we're having a conversation today, as I was driving back in from my last service call, and we were just kind of joking back and forth how we need to reign in our service area, because it seems like it's just kind Of crazy right now the emergency calls and stuff, but we're just kind of talking about it.

You know just just having a conversation, but I don't really want to be much bigger than like a six five or six service technician company. It's just guys, it's so stressful. As a business owner having to deal with everything, and it's not that service techs are bad or anything like that, it's not that it's just the stresses of everything. Just it's not worth it! So we like to stay small, I'm very meticulous, about the way that we do work and I like to make sure that my customers are happy and the bigger you get the harder it is to control your quality.

And so I just try to make sure hey. Zach, thank you very much, really appreciate it, but all right. Okay, on a Goodman split system, it has a high in a low port. What is the third port for human rights revolution? I honestly don't work on Goodman residential units, but I might assume that it's a liquid line port.

It might have a high side discharge, port, a low side port and a liquid line port. Possibly I'm just taking a guess there. Maybe that's what it is right on man appreciate, it is eck all right, let's see, has the 404 legislation for the u.s. died reefer tech mark, not that I know of meaning the phase-out, no, not that I know of and in California they actually we they started.

The phase-out a year early so in California, it's illegal for us to use our 404 a on new installations or system retrofits or honor any major system components such as condenser evaporator or expansion valve or compressor replacements. We're supposed to convert the gas over to another one and not use 404 a anymore. We're still allowed to use 404 a for leak, repairs and there's a couple classifications in there. I think on ice machines, we're still allowed to use 404, but on reaching coolers.

I think you might be able to, but on walking units you can't. So as far as I know, the legislation is still there so, but I could be wrong: hey D hard, oh one, I really appreciate it man. Thank you very much. So thanks guys, hey mr.

Ted, how you doing today so all right, okay, so Zach says it's a true suction. I'm assuming you're answering the question about the Goodman unit. So, right on what a/c system do I have at my house and if it is old, what would you upgrade to Nathan, Tuberville, okay, so Nathan check this out? I haven't edited down, but I have this. Might the air conditioning system in my house is a hideous system? Okay, the the the air conditioning unit is a comfort maker.

It's fine, it's an ICP product, but my ductwork is ridiculous. I have extremely high static, really appreciated. Mtech I've got high static on my system. The line sets a joke.

The way that it's ran, it's just it's a typical HVAC, guys system. I bet that majority. The systems out there are pretty ridiculous. My system - I didn't put it in it - was in here when I moved in, but the it's got a four-ton on it, and I guarantee that if I did a load calculation on my house, it would probably only need a three ton yeah.

It's it's a way too big of a system for my house. I actually did a video and I really haven't edited it. So I'm gon na go look and see where I was doing some work on my system checking the charge and everything and I was kind of showing the problems. I don't know if I caught, because I had a blower motor go out on my unit.

Probably two. Three months ago - and I don't know if my video was before that when the blower motor was going out or not but but ya know, my system is horrible. If I was to upgrade my system, I'm not a residential guy. I'd probably just go back with another ICP product, sorry Ted.

I don't know that I would really change too much up. I wouldn't go with any crazy crazy system. Maybe I go communicating. I don't know I've thought about going.

I mean, I know I've thought about it, but I don't think I'm gon na do it, but I've thought about doing like mini-split cassettes everywhere, but I just seems like a pain in the butt running those line sets everywhere. I like a ducted system. The only thing that sucks about houses in California is 99.9 % of them are flex duct and the flex duct is ran horrible. So you know I'd really appreciate.

If my system was hard ducted in and it was all metal, duct that'd be awesome. I don't know that I could do it myself. I don't know that I'd want to spend that much time on it, but it would be a fun project to do a proper duct system. For my house, I don't do a lot of ductwork, so I'd probably have to get a lot of the sheet metal made by someone else, but yeah all right.

I really appreciate all these super chats guys. You guys are awesome. Man really really appreciate it so yeah. I had said: well, I mean Ted.

If you want to come over here I mean you know you, you would you more than welcome to come and install a Trane communicating system in my house, but you know it's up to you. Man all right, HVAC, Nora thanks, but man. I really appreciate it yeah Linux is I like Linux as commercial packaged units. Again sorry, Ted yeah.

I really like the Linux l-series packaged units, the newer ones, they're nice, the inner gents ones, but sorry, my squeaking chair there. Alright, let's see what else I got here, one of the other things so the last two videos that I released was on a rude packaged unit. It was a little three ton package unit. I think that I had installed and it had a bad condenser fan motor.

I didn't I I assumed that you guys us, you know, made an assumption, but I got the question so many times that I do have to answer it. Yes, that motor was under warranty and, yes, I did get it covered under warranty so and I'm pretty sure I get paid some of the labor. I my supply house is dealing with that. So, okay, everything here in California, is flex duct in the attic.

So we don't have any basements or crawlspace is really here in California, there's a few older homes that had crawl spaces, but it's very rare that you find a basement here. Everything's ran in the Attic, so alright, let's see what else ha ha ha right on all right. Let's see glycol repair, so the other video that I did on a the other video that I did since the last stream was. I had a glycol unit.

That was the one that I released last night had a glycol unit repair and you know, had a refrigerant leak on the suction line. Service valve went ahead and repaired that up, and it was you know nothing too difficult. Just a pretty routine service call the one of the questions that I did get I got like two or three people asking me is if I added oil to the system to make up for the oil that had leaked out. No, I didn't you got to understand that refrigeration oil.

You know the littlest bit goes a mile, so when I say there's a mess of refrigeration oil it it really isn't that bad. It's just it vaporized and blew out the condenser fan motor was blowing through it and I just kind of blew it all over stuff. I just wiped it down on a compressor that old, there's really no way to add oil to that, because, god forbid, you add too much oil there's nothing worse than that. That would just cause problems.

So if I, if I saw high amps on the unit or something like that, then I might be worried about the oil charge, but on a compressor, that's small, I wouldn't be changing oil in it. I would be just replacing the compressor if I had to, but it didn't leak out enough that it moves a concern to me to have to worry about adding oil to it. So when you get into those small compressors, it's really not worth it all the work that I'd have to do to add oil into that. I just take the thing out and replace it and be honest with you.

They probably just change that glycol unit, but you know that would be the customer's decision to make so yeah r134a is being targeted everywhere I mean all the refrigerants are being targeted for 10 AR 134 404. Ralf is a Dallas fan right there, guys, if you guys, have any questions about refrigerants the things that are being phased out. Any of that stuff he's more than happy to answer questions. I always paste his email in here, for you guys right there, it's Ralph, Vergara at Honeywell com feel free to send Ralph an email.

He usually comes into these streams. Like I said, he's Dallas fan is his username, so he's usually in here answering people's questions and helping out so feel free to send him an email. If you guys have questions about the the phase-out of any other refrigerants and he's always got good information, if you want to talk to him too he'll be happy to talk to you about some of the alternative, refrigerants, so fluke 196. I really appreciate it and no, I did not purge all that system while welding, so I got that question too.

I forgot to put that in one in here. Sometimes I can't sometimes I can. That was an automatic expansion valve system. It was not going to have a very good flow automatic expansion valve acts just like a capillary tube, it's or even just like a piston.

It's just a fixed restrictor, I'm not a fan of purging with nitrogen, on systems like that, because there's some weird pressure drops in different things because of the the metering device that it just becomes a problem and it's difficult so, but even on some of those small Systems - it's just I I'm gon. Na be honest. I don't always purge with nitrogen if I'll purge with nitrogen on a big system, where I'm doing a bunch of braze joints and different things, but on the little tiny systems I don't very much, and is that correct? No, I mean it's not the best practices in the world, but sometimes you got to be practical and just know that there's a time and place to follow some of these great things and there's times that you can't on that particular system. I did use my true blue hoses, but I'll be honest with you most of the time I probably just would have used my manifold and vacuum through my manifold small system like that, so you know I try to follow proper refrigeration practices as much as possible, but Again, sometimes because of space and different things, you got to do what you got to do to make it work, so all right, fluke.

196. I really appreciate it. Man really really appreciate it all right, like an 11 degree glad once you get a decent leak, you got ta dump the charge. You know, I don't know you 6oh each kid.

I mean a lot of those refrigerants. You know I mean yeah, it does have a high glide, so that is something to be concerned about with high glide refrigerants. As the fractionation of the gas I mean you can probably get away with with top and off the charge on some of them, but which ones and how much is leaked out. That is a questionable thing.

So, on a 407 C system I mean if it was a pretty big leak, yeah I'd probably consider just replacing all the gas. It's probably good practice anyways, you know so all right. Let's see what else I got in here all lowboy and under counter refrigeration, czar. Changing our to 19, yes, yeah, a lot of the our 290 is coming out now: you're gon na start, seeing it popping up in some of the ice machine manufacturers.

I don't think any of our major brands are quite using it yet in their bigger systems. I know they're using it and like they're under counter residential systems, but I do know because NorCal Dave posted a video on one of the one of the Korean or Chinese ice machine. I don't know if it was turbo air or I Atossa or what I don't know. I Atossa isn't that that was no Auto.

So I don't know how you say that, but one of those brands has an ice machine and dave was working on it. The other day in one of his videos - and he showed that it was our 290, so it's gon na be popping up more and more. We got to make sure our 290 is nothing to be scared of you just got to follow some proper practices when you're working on it. So what was the hardest and most challenging job? I worked on.

Hmm, that's a good one. I think I've been asked that question before and I don't think I came up with an answer. That's a really good one. Let me think about that one and see if I can come up with something the hardest and most challenging job I worked on.

I mean that yeah, I don't know I'll have to think about that one. Can you do me a favor and send me an email and I'll really think about that? One and I'll try to make that a point to answer that in another stream, because that's that's an interesting one. Today's job was was interesting. I mentioned that I had a bearing go out and I was working on a utility exhaust fan and the utility fans are the ones that they're usually they're, not a mushroom style fan they're, laying on their side.

They have a wheel, that's horizontal or no, it's vertical. Yeah they have a vertical wheel, usually, and the motors usually sitting horizontal on his belt drive, and this one was interesting because I showed up to the job about 12:30 and again the restaurant couldn't open, because I was there, you know because their exhaust fan was down And I realized that the unit lost a bearing and it lost the inner bearing which is even worse. So we have a large shaft and you guys will see it when I post the video of it. But you have a large shaft, that's probably two feet long and it has two bearings one right up against the wheel and then one over by the the pulley basically and so the inner bearing went bad.

So that was a little challenging and it was a locking collar, bearing which I'm not a super fan of I like set screw bearings, meaning that it has two set screws instead of a locking collar. I have had bad luck with the locking collars coming off very easily, but this one actually came out pretty good. So it's all about cleanliness, of which I showed in the video and sanding everything up lots of wd-40 and sliding everything out. Knowing you got to be very careful when you're changing bearings about using hammers and different things, but but like today, I had to use a hammer and I had to use a tuning fork and you know knowing when to use those tools and how to use them.

Without damaging anything is very important, so today was kind of stressful. You know, even even though I know what I'm doing and I've done these jobs a lot. I'm getting that nose, it's right now. It's that nervous, twitch and no I'm not a coke head.

So, even though I've done bearing jobs a lot and I you know, worked in him - I still get that stress and I think that that stress is actually something that's good, because it shows that I'm concerned I'm I'm I'm not panicking, but it's it's I'm thinking. Okay, I'm on a time crunch. Here I got to get this done. I got to do everything proper.

I got to think correctly, plan ahead and execute you know, I'm not just going in there going home. I better go down to my van and realizing. You know. I'm not taking my time, and I know the customer appreciates that you know they appreciate the fact that I'm thinking about this and I'm concerned about their best interest and I'm reassuring them that I know that I need to get them operating as soon as possible.

So all right, let's see what else we got HVAC rookie, really man. I really appreciate it, but really really appreciate that all right so which one is better belt-driven or direct-drive. You know, there's there's good things and bad things about both. I'm gon na say the weak point of a direct-drive system is probably going to be the the VFD drive because most direct drive systems are gon na have VFD drives here in Southern California.

We have pretty dirty power and with the restaurants, especially the chain, restaurants, we don't have proper power conditioning on the buildings, so we don't have like phase monitors and different things, making sure that we have clean power coming in. So we tend to lose a lot of variable frequency drives, so there's nothing wrong with the direct drive fan, but for the most part there most of the time have a VFD drive. On I mean a VFD drive is a good thing too, because you can slow down and speed up the exhaust fan without having to adjust pulleys, but we have a lot of high failure rates on those VFD drives, whether they be in air conditioning systems, exhaust systems That we just see a lot of them, at least in the smaller restaurants. Now I know on the industrial side they use VFD drives all the time, but they use giant VFD drives with lots of power conditioning on them.

That's making sure that you have. You know it's got safeties and different things and our little itty-bitty VFD drives they overheat all the time they get plugged up with grease they're, just in horrible condition. So I guess, if I had to say for longevity, it's probably better to go with a belt drive, but you're gon na have higher maintenance cost with a belt drive, because you're gon na be replacing belts all the time. So it is what it is and pulleys.

So all right, let's see what else we got okay winter charge. So this is another question that I had guys. This was from the last stream and I didn't get to it. But someone had asked me if the winter charge in a head master system or a head pressure, control valve system, okay or a hold back valve, whatever you wan na call them, they were asking if the winter charge was the same thing as charging the receiver to 80 % and the question was kind of vague, but I kind of get the idea what he was asking me: okay, so on a head master system and I'll talk about this.

A lot more and I'll. Do lots of videos on it coming this winter to explain them a little bit more okay, but in a nutshell, a head pressure. Control valve is a valve that floods, the condenser okay to simulate a warm day to make sure that we have the proper pressure drop across our expansion valve when the system's operating properly really appreciate that their HVAC rookie so but for a head pressure. Control valve to work properly, okay and it's a low ambient control.

It's meant for when it gets cold outside, we can lose the pressure drop across our expansion valve, so that head pressure control valve helps to maintain that pressure drop while still maintained in a solid column of liquid, going to the expansion valve now in the winter that Head pressure, control valve is gon na bypass a lot more. They typically will bypass when the temperature outside gets below 70 degrees. I guess I shouldn't even say that anymore HVAC, our North. I really appreciate it man.

I guess I should say that the head pressure control valve is gon na bypass when the liquid temperature gets below anywhere from 70 to 100 degrees. The liquid line temperature - it just depends because a lot of the systems they're floating that pressure a lot lower nowadays, but so the winter charge is. We have to add extra refrigerant for that head pressure for control valve to work properly when it floods the condenser, because it's going to require a lot of extra refrigerant. So there's a calculation you can do and you basically calculate the the the space that you have inside the refrigeration lines and how much refrigerant it's going to take to flood the condenser.

So when the head pressure control valve is not flooding, that extra refrigerant is always going to be sitting in the receiver. Okay, there's an old-school method, and it is a method that I use that you could. Is you basically just put the maximum amount of refrigerant in the system? I really appreciate that. Zack, you basically put the maximum amount of refrigerant in the system, which would be pumped down 80 % full okay.

So the question was: is an 80 % receiver level? The same as the winter charge, and no it's not okay, and the reason why I say that is because if the system is not designed properly, that receiver may not be big enough to hold the full winter charge, so sometimes people will have to overcharge a system. Okay - and this is a horrible thing, but sometimes they'll have to overcharge the system or add more refrigerant in the winter and then take some out. So you can't always assume that if you fill that receiver up 80 percent of the way when it's pumped down that it's gon na have enough refrigerant for the system to flood properly. Okay, there is some calculations that you can do and I would highly suggest you read the spoilin document 90-30 dash 1 and it explains how to calculate on a tube and fin condenser.

So that's a copper and aluminum fin condenser dallas. Thank you very much Kyle. I really appreciate it guys on a tube and fin condenser it'll tell you how to calculate the charge, and I have a video on it. I think I have winter charge explained.

I think if you look up on my channel and it explains how to do that. So I really appreciate these super chats guys. You guys are awesome. So do you ever see scroll compressors with high temp discharge, temp sensors in the dome the sensor uses a particular silicone to hold it in place.

I'd see them in Copeland, scrolls, ok, reefer tech mark. I think you're talking about something different, so HVAC North man. I really appreciate it, but you need to have licenses in ours. Ok, you talking about where you're at okay, so reefer tech mark.

If I'm understanding you're saying that it has a high temp discharge, temp sensor in the Dome of the compressor, if that's what you're talking about that, is typically a DTC valve now I could be wrong, but most of the refrigeration systems that have a sensing like a High temp sensor, in the top of the compressor, is typically for liquid injection valve or a DTC valve. So is that what you're talking about mark now? I do know that there's a high temp sensor on some of Copland Scrolls and usually mounted about 12 inches away from the compressor on the discharge line. That's it that's a high temp sensor, but give me some more context there mark and let's and I'll definitely explain some more. If, if that's what you're talking about so HVAC rookie man, I really appreciate it all right.

Let's see what are the things I got here. You guys are blowing my mind on these super chats. Man really really appreciate it. So, let's see, do you ever see, let's go up into hearing the questions and see what I'm missing guys throw some more quad Matt yeah primetime.

I know you know since prime times here. I need to make a mental note that whenever prime times here I can't talk about Headmaster's, so prime time doesn't like Headmaster's. I know all right: let's see what else we got, I'm still a little disheveled from like not being prepared for this stream as much as I want it to be, but on on a good note crossed my fingers at least the audio is half as decent. This time right at least that's what I've been told, so at least I'm not clipping, so I don't know why I was clipping last week, so, okay, so prime time, you said that mom-and-pop shop with the pipe polling looked challenging when it comes to the heart yeah That was an interesting one having to run the new line set on the mom-and-pop yeah.

You are right, prime time, that was a kind of a challenge that was an older video where I had a mom-and-pop and they had a leak underground and it was kind of a chore. We had to run line set. Sixth yeah, I was the whole thing they the run line sits everywhere, and that was kind of we. It was more of a challenge because you we were trying to do it on a budget and it was a low-budget job, meaning it was kind of a business acquaintance of ours, not really a friend, but someone we've known for a long time.

So we didn't want to kill him with, like the super technical proper. You know hard pipe system with all this fancy stuff. You know he didn't have the money to spend that so we just kind of did what we had to do, but that was definitely an interesting one, because I changed all those evaporator coils on that system recap. I had a system where I went out and had a refrigerant leak, and I found like a massive refrigerant leak and like two of the evaporator coils, I think maybe three, and so we got the approval to change them.

The system was flat on gas so and they were big leaks too. So we changed him and then we went to go vacuum the system down and wouldn't vacuum so that we pressurized it with nitrogen and it actually had a leak in the line set underground. So it had multiple leaks and there was no way of knowing for sure, and it was just a nightmare, so they ended up having to run new line sets, and it was a that was a big one for that guy. So I was definitely a challenge.

So let me see why don't I care for residential HVAC work, Joby's II? It's not that I don't care for it. It's just we. We do really well with commercial. You know I'm limited by my employees so and I'm not saying anything bad about my employees, but the more you know if I do: residential commercial refrigeration, air conditioning ice machines, that's a lot of stuff.

So if I throw residential in there, that's one more thing we have to worry about. I also don't want to have to deal with homeowners if I could do residential work without having to deal with homeowners and just dealing with like facilities, managers and property managers. I know that most you guys that do it hate property managers, but I'm just saying the central point of contact rather than having to go through homeowners that are spending their hard-earned money. I would be fine with doing more residential work, although here in California, like I said, 99.9 % of our systems are flex ducts and attics, and I don't want to be up in the attic all the time I have to get up in the attic enough dealing With refrigeration, I don't want to be climbing through people's attics and insulation, and I I give props to all you guys that do do residential work and have to do those attic jobs with yeah.

I just I'm just not a fan of it. So the little bit of work - I've done is a pain in the butt. Have I ever serviced a tailor, shake machine? No I've maintained them before, just like changey cleaning condensers and putting filter medias on them and different things like that. But I've never serviced them never got into the tailor stuff.

I know just a teeny bit about the older systems, the really old systems that you they had belt tensioners that adjusted the thickness and different things, but I could not begin to work on one. I wouldn't even dare to open one up because I'm not yeah, I can't do it, so I just don't have the time to get involved with that yeah guys. If you do have questions it helps to put them in caps lock. So that way, I don't miss them so and don't hesitate to repost your guys's questions.

If I miss them, okay, guys just keep posting them. It's not gon na, not gon na piss me off. So if I miss a question, throw it in so, let's see, let's see, okay. I really appreciate that Chris, it's all good man, I that was very nice of you to say that I need that.

But it's all good man, okay, work on Bunn machines, nope! I don't do any hot side work, not that I can't it's just again one of those things I we just focus on the things that we do well and I don't do any hot side. So I don't do any fryers flat tops toasters ovens any of that stuff. So how do you approach our seven? Four? Four? Isn't that co2 refrigerant our 744? I think I've never worked on it. I've seen it in some bottle refrigerators like coca-cola ones, but I've never worked on it.

So I see I see Robby you're saying most supply houses will help you with sizing systems for walkins. Okay, there you guys see HVAC rookie when you do change out. Refrigeration equipment are you required to do load calculations? I don't know if you're required to do a load. Calculation like you are on residential, because there's really no like title 24 is is our energy code.

That requires us to pull certain permits and do air balancing, and you know hers, writing and different things, but as far as the refrigeration side, there's really no auditing on the work that we're doing there is some requirements that you know: evaporator coils have energy efficiency, efficiency, Vapid or fan motors and different things like that, but there's really nobody enforcing it. So whether or not there's a code that says you have to do a load calculation, I don't think there is, but it wouldn't surprise me if there is one out there now do. I do a load calculation when I change walking equipment. Yes, I do, and I typically do my own load calculations.

I know someone had said that supply houses will do them for you and, yes, they will. But I really have all trust issues with people and I like to do my own load calculations to make sure that my equipment is sized. The way that I want it to be sized. I don't like and again it's it's the way that old-school used to work, but I remember calling a supply house - and you know when I, when I didn't understand how to size, expansion, valves and different things, and I remember saying hey, I have any of you know: 12,000 BTU evaporator coil and what size expansion valve should I have and they say well, you know this one should work.

You should be okay, that that phrase should drove me nuts, because I don't like. Should I like this one is going to work. This is what you need, so that's why I like to do my own load calculations, so I use a there's a couple: different applications. Let's see Trenton.

If you go to Trenton's website, I believe you can download a load calculation. Software Russell refrigeration has one it's called rest box. Heat Kraft has some manuals that you can do it manually and do it by hand. Those are the three that I know about right now off the top of my head, where you can do load calculations and they all pretty much come up with the same results.

I typically tend to use the RUS box calculation a little bit more, just because I have it on my computer and then yeah, I usually run my own load calculations and then size my own equipment. I have kind of an algorithm that I use in my head. You know I go a little bit bigger on my condensing unit, then my evaporators and I typically will oversize my receivers. If I can so, if I'm doing anything lower than a one-horsepower condensing unit, they typically come with receivers that are too small.

If your remoting, the system so I'll, usually put bigger receivers on the systems ahead of time, I try to think of everything so that way, when I'm working on it, I don't run into problems, there's nothing worse than going to work on a refrigeration system, and someone Goes to pump down the system at the receiver and it won't pump down because the receivers not big enough. So that's why I install and so you'll see in some of my videos. You know I'll install bigger receivers and I'll mount it on unis, strut or different things, and you know, because I'm always just trying to think about the next guy, I'm hoping that the next guy is me. But even if it's not I'm trying to make the next guys job easier, so let's see if I get down here, Kyle Wallace.

Thank you very much man. I really appreciate it. Okay, HVAC rookie, you said you're in California too, and you were asking of title 24 affected my side. I got what you're saying their HVAC rookie yeah title 24 doesn't have any, as far as I know doesn't have any restrictions on the refrigeration side.

But there is other energy codes that we have to worry about. But there's not one like title 24 that I know of so am i against yellowjacket digital gauges? No, no, I'm not against anything. I'm just a fan of the field piece gauges. I have nothing bad to say about the yellowjacket ones.

I've heard good and bad about field piece, Yellow Jacket, test, Oh aye, manifold they've, heard good and bad about everything, so everybody has their weaknesses in their product. You know, so I have nothing bad to say about the Yellow Jackets. I'm not gon na go buy the Yellow Jacket ones, I'm just a personal preference. They just really don't appeal to me, but I know some guys that swear by them so more power to you.

There's nothing wrong with that. I just happen to be a field piece fan. I get the same question about testo stuff. I just just choose not to buy the testo stuff.

It is what it is, so nothing bad to say. Let's see what else? Okay, how do I feel about installing two new filter dryers when you open a system as in liquid line and suction line, it's not quite necessary to replace the suction line, filter dryer unless it's absolutely necessary. Typically, we don't change the suction line. Filter dryer, unless we have a pressure drop across it, so on some refrigeration systems they come with a suction line: filter dryer, I'm assuming that you mean one suction, one, liquid right, you're, not meaning to liquid line filter dryers.

Now, if I'm working on a heat pump system, there's some really funky heat pump systems out there that we come across every once in a while that have two dryers: they have one in each direction instead of a by flow.