Hey everybody, how are you guys doing this evening? Hopefully you guys can all hear me loud and clear, and I'm coming through got a couple cool things. I shouldn't say: cool things, got a couple good topics to talk about that was suggested via the emails and different things so right on, and let me move this fan off here. There hopefully that'll get rid of the sound there. Hopefully you guys can hear better.

Now. Sorry, I need a little water. Someone just pointed out in here the Indy Iceman. I saw that you noted in there to use a scraper for the calcium on the ice machine.

Yes, I have done that. I'm not a fan of it just because you can create little micro surfaces for the stuff to build up, but you are correct that sometimes it gets so bad that you have to you have to scrape it. You know I mean it's one of those things. I try not to, though you know, if you clean the ice machine correctly and you uh sorry, I moved back from the camera a little bit, so I'm not up on your guys's face.

You know if you, if you clean it correctly and do the normal routine stuff, then you shouldn't have to use a scraper but yeah it's one of those things I try not to just because it can leave little gouges and different things for the you know. For the bacteria and different things to build up and inside those machines, if you actually follow a lot of the manufacturer's instructions on ice machines, they actually say not to use anything like other than a terry cloth or just a towel, which you know isn't really practical. In all reality, I use a scotch brite pad. You know just the little green ones that aren't too bad and we use those and then we just throw them away when we're done.

But you know sometimes you got to do what you got to do and to each their own. You know just it is what it is so cool right on. Hopefully, obviously you guys see, I have a different setup here. I don't know if you guys, listen to Zack C Oda's podcast, but I discussed my craziness in my head and my mental disorders and he was joking around the other day and saying how he went and redid his office.

And that got me thinking about it. And so, if you're watching Zak, I went into my manic state and decided to go ahead and redo my office this weekend. So just got some shelfs and different things, and I wanted to be able to display different things in the background and stuff so kind of reorganized. The desk situation in here and repositioned, because before my studio was it's a room that has a sliding glass door off.

The side of it and the sliding glass door is kind of hindering the way that I could do video and different things. But I have some ideas on some stuff. I want to do, and I really needed to change up my office to do so so, and I always thought too. I like, when people put up cool stuff in the background that people can look at and try to figure out what they are and that kind of stuff.

So right on Isaiah HVAC with GSA's in here, and he said he just hit seven hundred and sixty two subscribers. Congratulations but you're doing a great job, so keep it up. Man, if you guys haven't already subscribed to Isaiah's channel and C check it out. You know he puts up some good content so yeah.

I appreciate you guys hit the like button. That would really really help and Justin it is the audio better any better. I moved a little bit closer to the mic, so hopefully that works out right on. Thank you very much Jason appreciate it appreciate everybody's I'm gon na try to get to the the the chat here in a few minutes guys bear with me.

It takes me a minute to calm down putting this stream on. I'm trying to trying to you know, come up with all kinds of topics and stuff, so I'm gon na talk for a minute and then we'll get to some of his or some of the comments and questions and all that good stuff. Okay, Justin, as I always say, Justin's my moderator in here, and he is in here to help with questions and different things, so he's going to try to help me get to everything. If you guys can try to put your questions to me and caps caps lock.

Okay, so that way Justin, if I miss them, then that would Justin can see him and he'll try to shoot the questions over to me and different things: okay, so yeah all right! So let's get going to videos since the last livestream. Okay, we had the video on the Chi rack blue unit and I kind of wanted to go over a little bit about the Chi rack blue unit, a it done it many times and if you guys watch my videos, you've seen me explain how those units work. Okay, but I am going to kind of go over it. Real quick, the Chi RAC blue unit is their newer refrigeration unit and what it does is it uses glycol as the cooling medium for the where the food is at okay, so they do have a normal refrigeration, condensing unit and then what they have is they have A heat exchanger and the refrigerant stays in between the condensing unit and the heat exchanger and then glycol it's a flat plate.

Heat exchanger glycol is then pumped through the cold, rail and then down to the base section of the box, and the glycol is circulating. 24/7. Now one thing I will say is they are slow to come down to temperature. They do seem to take a little bit longer than a normal DX Box.

You know where it's just exchanging air and refrigerant, or you know, across the surfaces of the refrigerated evaporator, but once they do get down to temp, I that they hold temperature a lot better and they maintain more even temperatures and by khayrat going to this blue technology. What they did was they eliminated a bunch of their problems with their pan shield or cold rails. So it really does help to have the the glycol in those units, okay, so down in the base section. Now you have what looks like a normal evaporator coil, but it does not have refrigerant in it.

Its glycol that's circulating through that. Okay, now I've had people say like hey. What's you know, what's the the benefit to having glycol versus refrigerant? You know I just noticed a better operation of the unit in general, I noticed better temperature, you know across the box and the food stays more evenly. You know at temperature, so I really like the new guy rack units or the blue they're, not really that new they've actually been around for about probably eight or nine years.

But I'll tell you a story. I don't do a lot of work. All thanks. So much Zac, I really appreciate it.

I don't do a lot of work with them anymore, but I used to do Chi racks, warranty, work out here in Southern California and at the time they had some pilot programs that they were doing with Lucille's barbecue, which is like a barbecue place out here and Basically, they built the entire refrigeration system for the restaurant and it was all ran off a glycol, so all their walkins. They just basically had a giant chiller on the roof with circulating, and I've heard, maybe if some of you refrigeration, guys that handle restaurant refrigeration. Like I do I've heard that Cheesecake Factory might do this too. I don't know if that to be true, but I have heard that uh and I know that Lucille's, I believe, is still doing it where they have the chiller set up on the roof and they're.

Just pumping glycol all the way through the building, so all the refrigerant just stays up on the roof and they just have glycol lines ran everywhere. I'm talking to all the prep tables, all the Traulsen coolers yeah. They have it going everywhere for everything and then the refrigerant just stays on the roof. So it's a pretty cool little thing, especially in our restaurant stuff, because our restaurants are never very high tech.

So it's kind of cool to walk into one of those systems and get to work on something different every once in a while. So, okay, I'm gon na address some of these questions, real quick, Aveda gan. I don't know if that's how you pronounce your name. You said: do I watch any uh, the following channels of TV vlog? I have just recently been turned on to eevblog and have I have not watched any of the other ones, but do me a favor if you can send me an email with those channels and I'll check them out or I'll try to go through the chat too? But it'd be easier if you just send me an email with it, so we'll try to get to that yeah I'll check them out and see how it goes.

Thanks. A lot Zack, okay, cool right on Jeff, Manto Lavo. I don't know if I said that wrong. Sorry, but if I did but okay so yeah, you did set up the Cheesecake Factory in Queens yeah.

That's what I heard as they were running chillers. Oh, so they were running trained chillers that Cheesecake Factory. Oh interesting. So I wonder if they're so, are they using high rack equipment downstairs with a Trane chiller on the roof? Is that what they're doing see because Kai rack used to manufacture their own chillers? So did they go away from manufacturing those? I don't know if any of the other guys do that work so interesting.

What a traveler asked. What's the number one tool you would recommend for a new trades person in the trade? You know it's not so much about a tool, but it's I mean this sounds corny and stuff, but it's about knowledge. You know, take your time be willing to learn, be humble. As far as like new tools, I mean you need to start out with your basic tools and if you don't know how to use the tools, there's no point in having the tools.

So it's kind of hard for me to say the one new tool. It really depends on what you're working on too so I'd be glad to go into some more detail. If you want to send me an email but to HVAC our videos at gmail.com, okay and I'll. Try to address that some more so yeah Justin's kind of answering it a little bit too so he'll see that ok, I'm gon na kind of keep going through a few of these things.

Um. Let's see sorry if that, okay, so I had a pretty good question that came in today and it was from someone who was, he just does, I believe, residential, maybe like commercial, and he was asking how and and again this is a little bit beyond my my Scope of work, but I do have an understanding on how they work okay, and he asked how motors and compressors on chillers that basically run 24/7, how they they run all the time without burning up okay and there's a couple things that go on with that. Okay, first off motors, they really do have a long life span and a lot that you know motors tend to motors and compressors and different things there any electrical device. It has like one of the hardest things it has is when it starts up.

Okay, there's a lot of wear and tear that goes into a unit that started and stopped multiple times. Okay, so there is some some logic to running things for long runtimes, okay, and when you have like a multiple compressor or multiple fan situation, a lot of times, they do like a lead lag setup where they they might stage certain fan motors. Okay, so let's say we're talking about: let's say the unit has seven or eight condenser fan motors, okay and obviously we aren't going to have a need more than likely for all those motors to run at all the time. Okay, especially if there's no load on the unit or if it's cool, outside okay, so they're gon na cycle motors, depending on pressures or temperatures, different things, okay, but then a lot of times what they'll do C & H guy.

Thank you so very much man. I really appreciate it a lot of times what they'll do is they'll set them up on a lead lag setup. So basically, every couple of days you'll have so many primary motors and you'll have so many secondary motors. So the secondary motors will usually cycle off first and the primary motors will usually run longer, okay and then every couple days they might have a timer and they might swap which ones.

So that way, we can even run time across those motors and compressors. Okay, maybe some guys that do a little more industrial work and explain that a little bit better. You know, but you know just feel free to reach out through email. Again I don't we keep saying reach out to email, but a lot of these things.

I can't talk forever on them, so you know any anything that I don't address, guys just send it out in an email okay. So the video that I released today was on the dirty ice machine number one I want to point out. I have a phrase that I use all the time and it's ignorance is bliss right, and it really is. If you don't know, what's going on, it's so much easier to deal with something.

Okay, most people don't know that ice machines can be nasty, okay, so oftentimes. We eat at a restaurant and we don't even know what their kitchen looks like right. So ignorance is bliss because if you're not getting sick, I mean you know, move on right. So every ice machine out there is disgusting.

Okay, every ice machine is dirty, but what what is disgusting and what is like? Not what's gon na make you sick, there's a difference there. Okay, hopefully that makes sense. I kind of said that wrong, but you know calcium and minerals and different things are naturally in water, okay, so ice machines. You know they're, naturally, gon na have that stuff.

It's not the end of the world. Now the the ice machine that I showed. That was pretty gross because that had like some slime and bacteria build up inside of it. That's what's really grosses me out is bacteria and slime.

Okay, but you know for those of you guys that don't work with ice machines anywhere that has bakery yeast in the air breweries and different things there. Ice machines are pretty nasty, usually okay, and that that black moldy slime bill that it's not really mold. But it's like a bacterial build-up of slime and different things. That's in the air! You know that stuff builds up in the machines, but what we don't realize is is that stuff is typically coming from the air that we're breathing.

So, even though it is gross, is there really any difference between just walking around breathing that stuff all day versus ingesting it? I'm kind of curious about that. I mean I realize that our noses are supposed to filter things out and stuff like that, but I mean it's kind of weird like. Is there really that much of a difference from just I mean I guess, if you're walking restaurant, you know and you're breathing some dirty air is it, you know, I don't know, that's just kind of an interesting thought. Is it really that different? So, okay, I'm gon na go ahead and look at some of these questions down in here.

Let's see if we got any so what's the best way to set and adjust a semi-hermetic compressors adjust unloaders okay d hard, oh one, i'm not gon na, be the best person to answer that question too much, because i don't deal with the bigger systems that have Compressors with unloaders on them, i have dealt with them in the past and they're basically off of pressure, but I would I can safely say that it's going to depend on what you're using them on. Okay. Is that a refrigeration system? Is it an air conditioning system? What temperature the evaporator is is gon na set your unloaders controls, that's going to turn them on and off, or turn the unloader on or off or whatever, but that's about all that I'm going to answer on that one, because I really don't have the confidence to Answer that anymore, essentially, I'm stupid and I don't know the answer: okay, so, okay, let's go in here and see what else are missing. Okay, can I explain how to find the TD on an evaporator to find if you have a good pressure? Okay, that's from cbcb! Well, you need to talk to the manufacturer.

That's the only way, you're really going to know how they design that evaporator. Okay, because we can run a TD. The TD is determined by the size of the expansion valve okay and the amount of air going across the evaporator so and the evaporator size comes into play too. So really, you won't know unless you lean on the manufacturer now there's some rules of thumb that we can use, but you know they change from region.

Okay, I mean just like a real vague rule of thumb on air-conditioning is you're gon na you might see, like a 35 degree to evaporate or TD on there, but again it all changes via climate and different things, and how that air conditioner was designed. The seer rating of it and everything okay on refrigeration, like walking, coolers, typically you're gon na see typical. You know just general product storage, if you're not worried about drying out product inside the box, or anything like that. You know you're typically going to run about a 10 degree.

Evaporator TD same thing goes for a walk-in freezer about a 10 degree, evaporator TD, but it all changes depending on for keeping flowers in the box or, if you're, keeping cakes in the box different things like that. So it really really does depend on what you're working on, but you need to lean on the manufacturer and/or the design engineer of that building. So if you have a building - and it's like a big ol air conditioning setup there, you know the engineer that designed it is going to tell you what he designed the evaporator coils for and that kind of stuff. So hopefully that answers a little bit there.

When you clean, condenser coils on rooftop units, do you split the coils to clean them? Allan Wilburn? I do not split them every single time. Okay, if it's a new customer and I'm being called out for a service called, and yes, I'm probably gon na split them. The first time, because I don't know how dirty they are, sometimes you can pop the lid on the condenser and investigate to see if they're dirty inside, but if they're my customers and we have them set up on like routine preventative maintenance, then no, I'm only gon Na split on, like once or twice a year, depending on the climate, so in my region, in the Moreno Valley area, which is in the Inland Empire of Southern California, for whatever reason we get this pall and floating around in the air and in the summertime it Just plugs everything up quite often, so you could be out a couple weeks later and have plugged up condensers and that stuff will get sucked right into the condensers and cause a problem. So we have to split our coils a little bit more there versus some other cities and a lot of times.

I noticed when condensers are located, you know, or the buildings are located next to a freeway. We tend to see more of that pollen and crap building up on the condensers too. So, but yes, we always want to pay attention to splitting condensers and it's pretty much a good rule of thumb. Anything over four five tons typically is gon na have a double rode, coil, whether it be residential or commercial.

Sometimes you might see a smaller unit for tons, but I don't know that I've seen very many of those, but mostly five tons and up you're, typically gon na see a split condenser and you need to get in there and separate them a lot of times. Two on a split air conditioning condenser, we're talking about air conditioning right now and a lot of times the the condensers will have little clips on the on the condenser. That holds the ends together. So you know - and you have to be very careful when you're splitting them apart ie.

I think I have some videos on it. If you guys want to go to my channel, I really don't know which video is going to have it. Well, no in the the Train air conditioning unit, it's one of my more popular videos where it had a it was overcharged. That was the one that I split the condenser on.

I think I might've showed it, but most of them they come apart, the same way where you're just one end of the condenser coil splits apart and it's usually the opposite end of where the refrigeration lines connect to it. So but there's little clips that hold it together and when you pop those clips off most of the time they don't go back together. So you just got to pay attention and try to scoot them back together as close as possible. Sometimes I'll run a zip tie through them to hold them together or something so okay.

Does it make a big difference for a walk-in freezer water cooled condenser to run lower pressures? Does it make a big difference? Well, I kind of need a little more context to that. It's the Tito 209, but in general, remember that we we design, depending on how the system was designed. We design our systems to have a certain pressure drop across the expansion valve, so the lower we go with that pressure drop and depending on how old the valve is, especially if it's a really old valve, you tend to have more problems when the pressure drop gets Really low, so that means when you're condensing temperature drops too low. Okay, then the pressure drop in the system, the difference between one side of the expansion valve and the other side is going to go a lot lower right because you're condensing temperature drops okay.

When that happens, then it's gon na you know start to affect things now. The more modern expansion valves and spoilin has a podcast that they just started doing about expansion valves and they just talked about this topic and how the newer expansion valves they're, designed to not be restricted so much by the pressure drop. It kind of. In a nutshell, okay, so so, but yeah I mean it all, depends: okay, but I've seen buildings running, really low, that are water, cooled condenser unit sand.

They basically run 70-degree water, sixty five degree, water, I've seen them run throughout the winter and they run just fine. So it just depends on the load and how the system was designed. Okay, okay, so does time pressures prevent me from doing all that needs to be done on call Philip Jenkins. That's interesting! I don't really know exactly where we're going with that, but I'm gon na try to answer that as best as I think I could.

Okay, so yeah I mean on a call. You know it depends. Okay, sometimes you know in the middle of the summer we're slamming busy. I might have to put a fire out so to speak right and then do a follow up later.

It just depends. I mean we get those couple weeks during the summer where it just gets stupid busy and we can't keep up with it and yeah. I'm like, for instance, this last summer that we had. We hit a hundred and twenty degrees at my house in Southern California, which was like a record breaker and that entire week, where we we we hit 120 on one day, but then, like 118 115, the rest of the week and that entire week we were going Around resetting pressure controls because automatic, like encapsulated pressure controls, they were basically popping off and tripping everywhere and there was nothing wrong with the system.

It was just too darn hot. So in that situation you know we rinsed off the condensers, really quick and we weren't able to thoroughly troubleshoot things. We just had to get them running and move on to the next call, but we typically went back and followed up. You know so.

Yes, time does affect the way that we do service calls, but we always try to be thorough and still look at the big picture as best as possible and try to go back whenever we can. You know, and we leek you know, try to keep the customer in the loop and let them know like this is what we got to do. This is what's happening so all right, we're that answers your question there yeah and let's see, is Rick from Northwest Ohio. Here I don't know if Rick's here I haven't seen him yet, but it's kind of hard for me to keep up with the chat.

So, okay, do you guys have daikon vrv units in the US and how do you diagnose with an inverter compressor since the compressor changes, speed and throws off everything, okay, sterling? Yes, we do have Dyken vrv systems. I don't work on any vrv or inverter driven. I mean I work on small mini splits that I've been birders, but I don't work on the big stuff. Okay, we have a couple different major brands, so there's probably gon na be some better guys in here, and I want to be careful about answering this, but I do know that those units do have I've heard that they have like a service mode that you put Them in that basically runs everything so that way you can properly charge them.

But again I want to be cautious about answering that because I don't want to lead you in the wrong direction, so how many yearly service contracts do I have on just cleaning ice machines superior. Unfortunately, I don't have very many contracts left. I have one two. Three restaurant chains that do preventative maintenance, -- es and then one my major major restaurant chain doesn't do.

Preventative maintenance is with me anymore, so they use some national filter changing company to do their PMS. So you know it. I don't know it. My contract customers, it's not really a contract but they're, just like service agreements that we have with them, and I would say I probably have maybe twenty five restaurants, maybe thirty restaurants, that we service on a regular.

But it's not necessarily every month each restaurants different some restaurants, want us to service them every three to four months. Some of them want us to do them every month, so it just depends on each restaurant on you know, so you know and then and then yeah. I mean yeah, I would say, probably 45 customers, that we do preventative maintenance for us and we have other texts. It's not just me out there working between myself and all the other people that we have working with us.

We have five people out in the field right now, so alright see what else we're doing in here. Yeah did I see Ralph's in here. I see someone saying hey to Dallas or is that dizzy Dallas missing someone in here? Sorry! Well, I'm not gon na spend all day on that. Okay, oh okay! It's dizzy! Dallas, hey bud! How you doing! I see you in there now so alright and I'm trying.

I see some of you guys are having conversations here. So I'm trying to keep up with it, but let's try to keep them in caps-lock. Okay, all right! I'm gon na go to a couple more questions here. Let me go ahead and change that to live chat so that way I can see it there.

We go right on Linux, I'm going to answer this one, so the teto 209 Linux AC unit, high efficiency units. Where can we get more information? Because tech support takes about three hours to get ahold of that's a hard one, but read the manual go to Lennox proz.com, I'm going to type it in here. This is their website where you can get hey Paul. How you doing this is where you can order parts and different things, and they actually have some good information in there and lots of technical manuals.

You just got to learn how to operate it. You might have to create a username and password if you have an account with what's the name of their supply house Linux. I can't think of Linux is supply supply house right now, anyways, but you I think you might have to have an account with their supply house to get access to that, but just go to Linux, pros comm and I'm sure it'll explain it some more. But I get all kinds of great troubleshooting information and on a side note too, if you ever need parts most of the time, because I don't like to wait on hold dealing with them, because I'm not like an authorized, because if you're like an authorized warranty company With a lot of these manufacturers, they give you priority.

So if you do a lot of Linux work like the national accounts technicians, they have their own phone numbers that they call and the same thing with like delfield and man. It's walk in all these different companies, but if you're not like a normal parts person, i mean a normal warranty person for them and you don't have priority a lot of times. It can be difficult to get a hold of them and yeah. The whole time can be like two hours, it's stupid, sometimes so a lot of times I'll, go on to Linux, pros, comm and navigate via model and serial number and I'll find my own part numbers, and you can even check stock and be at the supply house Before the guys even answer the phone, so something to think about, but that Linux pros websites pretty cool all right and let's see what else I got going on here - parts plus there you go Jeff.

I couldn't think of that for a second yeah parts plus is the name of their parts house so yeah there we go everybody's answering that right now, but yeah I go to Linux pros comm that used to be called Dave net and you'll. You can look up a lot of cool technical manuals, but you know a lot of the stuff that I've done is is just from researching and forms and remember, let's not forget guys, there's a great great form called HVAC talk. Comm - and you know before YouTube was really really big. We all used to be on that message board and there's great there's still lots of great information, and a lot of it was archived.

Although a couple years back, they had a problem where they, the site, crashed for a long time and they lost a lot of information. But there's still a lot of great archived information on there. And if you want to learn about Linux packaged units, you know you can do a Google search or you can also go to HVAC talk comm and then you know search it in the search bar. You might have to become a member or something, but I, as far as I know you don't have to pay, I don't pay anything for it, so I'm the member and lots of great information, lots of guys just like us on YouTube that are sharing information on There, even some youtubers too, are still on there and yeah, but that that website goes way back because we use that used to be really popular.

A lot of the guys in here probably remember that so alright, ok, so I'm gon na go ahead and hit another topic that I had on my sheet right here. Another question I had was about using UV light kits and ice machines, and are they effective or not? I have seen a lot of UV kits manitowoc. You can actually order their Illuma ice, which is a UV light with a little pump that pumps. You know whatever ozone across the ice machine area or whatever, and I have noticed when you use those that they do slow down the bacterial growth inside the machines.

One of the things that people don't realize, though, is UV lights, have a very short shelf life on them, so on the manitoc ones. I think you got to change them every 6 months and if you, after that time, they become ineffective. Even if you still see a light coming out of them, they're not doing anything anymore so but the UV lights that yeah they do work, they slow. I mean they're, not gon na eliminate the problem.

Depending on your environment, you just need to adjust your cleaning schedule. So you know some customers, don't quite understand that that sometimes you know if you have a bar with a lot of yeast, do with beers or a brewery or a bakery. You know those machines are gon na need to be cleaned 2 to 3 months, every 2 to 3 months. You know, depending on how bad they are.

First, is another machine. You might be able to get away with a couple months, and it also also depends on the manufacturer, for whatever reason, we tend to see more bacterial growth in a Manitowoc ice machine versus a hoshizaki ice machine. But we tend to see more problems with calcium and scale buildup and Hoshizaki machines versus manitoc machines. So you know and I'm not saying either one's better, but you know we just tend to see that a little bit more.

Ok, Jr! You said you recently got our junior. You recently got hired on your new job and noticed in your kitchen. We have a really bad negative air pressure where the doors slam behind you. I noticed that it only happens when the chefs, how the exhaust fans on I checked the make upper unit that they are running at full capacity.

I was told to install at VFD on the exhaust fan. When runs ten and a half horsepower. Can you claim? Okay? Can you get into VFDs, I don't know much about them or if you have any suggestions. Thank you.

Okay, even if you're a technician junior, I highly highly suggest that you guys pay a test and air balance company to come out and take the measurements and tell you what your system should be at they're, not necessarily gon na correct everything. If you don't want them to, but you can pay a test in air balance, a couple hundred bucks to come out and just do an evaluation on your building and then they'll lead you in the right direction, because, as far as balancing out a building, you can Go a bunch of different directions, I'll make it clear right now. I am NOT a certified test in air Balance. Technician.

I just know how they work essentially and know. What's going on with them, but when it comes to restaurants, restaurants can be very, very particular because, depending on your region, you may be pulling outside air minimum outside air through air conditioning units via the economizers. If that's the case, then all of your air conditioning units indoor fans need to be running basically 24/7. If you're pulling any outdoor air through the AC units, they need to be running whenever you're exhaust fans are running because those are part of the total building envelope.

Then you need to have all the exhaust fans running and the make-up air you were unit running, and then you evaluate things and adjust from that point. So I'd be happy to talk some more about it in an email. If you want to send it over to me so all right, a clan I personally have besides improper, I don't know, okay. So what's my thoughts on dirty vans? Okay, the tito 209 dude people's vans get dirty.

I try to keep mine clean, but I'm gon na be honest with you. If you guys have seen my van to our video, my van stays relatively clean, but at the end of the week it gets dirty like everybody else's. I mean it's, not disgusting. I don't have food growing dizzy, Dallas dude! Thank you so much man.

I really appreciate it. I really appreciate these super chats guys. You guys are blowing my mind with these so uh. I lost my train of thought there.

Sorry, it's not! Okay! So dirty vans. You know my van gets dirty okay, but I try to keep it clean. I don't have food growing and crap all right, but you know I mean your van is a representation of you. I've heard of some people saying that you know my van is gon na stay dirty those grumpy Tech's, like oh, my gosh, my vans always gon na stay dirty.

I try to clean mine, sometimes okay, but again, I'm not gon na, say I'm the perfect angel of everything, but there's nothing worse than opening your van door and parts rolling out of your van and then you selling those parts to the customer. God forbid. Your customer sees those parts roll out onto the floor, and then you pick them up and try to sell them to them. So there is something about keeping your van clean, okay, but I'm not saying it has to be sparkly clean, but I mean at least have some sort of an organization to it.

I think that's a very important thing. Okay, if your van looks like a tornado blew up inside of it, I mean you're gon na have a lot of truck raped parts in there. Okay and there's a lot of parts that are gon na, get thrown away or destroyed because they're, you know just getting just you know, covered in crap stacked on top of them and all kinds of stuff. So and it's hard to understand, inventory and again, I'm saying this from experience when my van gets really really messy.

I tend to have an overstock of parts in there because it's like, oh, I can't find that liquid line, filter, dryer I'll go, buy two more and then, when you clean your van all of a sudden, you have four of them right and you're, like oh, my Bad, so you know there is something about keeping your van clean. I wouldn't say that it's like the most important thing in the world, but just try to keep it somewhat. Organized all right. Okay, I'm gon na go to my topics here: real quick um! Oh, this was an interesting one, so someone had asked me.

I can't remember if it was in the YouTube chat or where, but they said, is it okay to use CLR as an ice machine cleaning? So CLR is the household deal, I'm er, essentially okay, so I'm gon na give you the clean and safe answer, and that's no all right. I'm not gon na say that I have never seen someone use it and I've actually heard of an ice machine manufacturer once recommending it. But I'm gon na cover that with a big butt, it depends on what type of evaporator and the reason why I say don't use. It is because it's not necessarily NSF approved for food-safe.

You know use basically, okay, so most ice machine cleaners. If you they're approved to be used in an ice machine, and you have to be worried about contamination, you have to be worried about customers Health's and different things. Okay, so for the simple fact of it's not a not an approved ice machine cleaner, I would say: no don't use CLR because you never know. What's in that stuff, you want to use.

You know ice machine manufacturer, approved and or NSF approved ice machine cleaners beacon, and you want to follow the instructions to a tee, basically making sure that you're sanitizing your surfaces after you're done and you're flushing the systems out and rinsing everything. Okay. Now, let's talk about the different types of evaporators and ice machines, so hoshizaki ice machines have a stainless steel plate, evaporator, okay, so it sat in stainless store. It's a thin stainless steel plate and the water runs across that and the refrigeration lines are soldered to the back of those plates.

So you you, don't you have to or you can use basically full-strength phosphoric acid ice machine cleaners. So, like the new Calgon, clear ice machine cleaner or you have to be careful and Hoshizaki every machine, you have to know the differences. Okay: let's talk about a Manitowoc machine, a Manitowoc machine is a copper evaporator, that's plated and nickel okay and that nickel coating will come off if you use the phosphoric acid, clear ice machine cleaning, cleaner, okay, so on a Manitowoc ice machine on a nickel-plated evaporator, there's Some other nickel plated ones too. I believe Scotsman is nickel plated and I believe I cymatics nickel plated.

You have to use nickel safe ice machine, cleaner, okay, now, there's a couple different types of nickel: safe ice machine: cleaner, there's, a couple different things: they add to them. So new Calgon uses citric acid in their nickel, safe ice machine cleaner. Oh, I believe they use citric acid, I'm not gon na, say that for sure, but there's some nickel safe ice machine cleaners that have citric acid well citric acid can attack certain metals. So you've got to be very cautious and lean on the manufacturer of each ice machine to know which cleaner to use inside of them.

So let's see what else I'm going here, I missed a bunch of questions here. What kind of temp control do I prefer other than Johnson Controls ones because put here in the Bay Area? You have lots of issues with them, or maybe it's everyone. If I'm gon na go with just like a generic digital control. I, like the Ronco et Cie 111.

Thousands for the 141 thousand is the NEMA 4x, like water-resistant control. That's the best one, but sometimes it's a little big. So the one 11,000 is a really good control that I'll use. I'm not a fan of Johnson Controls.

A 419 controls, that's their digital one. I do, however, like the a 19 mechanical Johnson Controls when you're needing a generic controller for like a walk-in cooler. I like those, but it all depends on where you install them and how you install them. I'm really really starting to like the key to therm temperature controllers.

They have the 10th Plus defrost controllers and they're, you know digital and they have a defrost built into them. I have some videos where I've used them and you can add communication devices on them. So you can like, for instance, I have one set up at one of my restaurants, where I can walk in the back door and connect to the controller on my smartphone and that's really cool. So it just depends on the different types and then, if I'm working on like a delfield refrigerator, I try to go om as much as possible.

So you know I don't like to veer away from the OEM stuff. Unless you know, I know that I can solve a problem by going away from om sans trough. How can you detect a refrigerant leak on the water side of a condenser in a hydronic walk-in fridge? I got ta read that one again: how can you detect a refrigerant leak on the waters? Oh well, when you open your Schrader port to put your gauges on it. If water bowls out, then you've got a problem right.

I mean I've seen that happen. So that's a hard one. I mean you would know immediately if you had a refrigerant leak on the water side, because the water would be getting into your would likely be getting into your your refrigeration system and then you would have all kinds of problems. So if you pop the Schrader and roof and water blows out, then you know you got a problem.

You know I I don't do a lot of water cooled stuff anymore. Maybe some other guys have some different options or opinions on that, but yeah. That's my two cents, DJ sub air. Do my other employees watch this chat? I think one of them might, but I don't think out of the five.

I think one of them actually I'm one of the five, so I think one might and the other three don't so I I mean I tell them all about this, so you know whether they watch it or not. It's on their own time, but I mean someday, but they won't comment about my videos and different things. So I don't know is if any of my employees are in the chat, say: hey I don't. I don't think they're in here, but I don't know nobody ever tells me they watch them.

Okay! Oh I see. Oh okay, cool right I'll until your dad, I said, hi all right, yeah, exactly Justin Russ. You will know almost immediately. So, alright, let's go to my topics here: best place for ice machine training.

That was another really good question. So ice machine training is another one of those things too. You want to lean on the manufacturers. Okay, you're not gon na find one-stop shop on ice machine training, and even if you go to the trade schools and different things, a lot of times, they're not gon na give you like a great great education on how ice machines work, because there's so many different Types, you have to go to each manufacturer and you know figure out how their machines work.

Excuse me want to take a drink of water, real quick, so you have to go to each individual ice machine manufacturer and see what they they're their defrost strategies are and their setups and their control strategies and different things. So, scotsman ice machines, hoshizaki ice machines. I somatic manit's walk filete vote. Those are the ones that I run into.

I don't run into vote very much anymore, but then there's cool air there's some offshoot ones just go to the individual manufacturers, websites, download the manuals and just read away, try to pay attention. You know really good time to learn how an ice machine works is when you're doing a cleaning right, because there is some downtime when you're cleaning an ice machine when you're done scrubbing and there's nothing else to do. You know, read the installation manual while you're. You know waiting for the thing to circulate.

You know it will take some time on your part to after you, get off work to go home and read some manuals and learn it about different controls, control strategies. You know be cautious. I'm not saying that my videos are the best at all, because I I say any any videos you guys watch on YouTube. You want to be cautious, even my stuff.

Okay, you want to you want to take it. What's the phrase with a grain of salt or whatever, but Google search that particular isomer manufacture and then click on the videos. Tab and see like Hoshizaki, has a bunch of video like how-to videos on their website, how to clean their machines and - and I think they might even have some training on there same thing with manitoc they've got some cool videos on there too. So you know just just research that go to youtube, look up some of the stuff and you know and and just try your hardest feel free to send me an email, anytime and I'll.

Try to answer what I can so have. I seen any zoom lock fittings. Yet no Dan, I have not just not in the restaurant refrigeration stuff. We typically aren't.

Probably I'm gon na see zoom lock. Unless you start bringing vrf into the restaurants. I don't think we're gon na see zoom lock very much, but I'm not against it. I mean it's just not something that's economical for me to use right now, because my customers don't want to pay for that.

But I do see some value in it, especially. I have worked in some places in the past that had yet to pull like fire permits and have a fire. Why 24-hour fire watching different things and zoom lock would be a great tool in that situation. So alright, yeah Brian - I don't know Brian says he goes to the Hoshizaki class every year I might have missed the Hoshizaki class in my area.

I'll have to call them. Has anybody gone to the Hoshizaki class in Brea this year? Yet I I don't know if I missed it, I went to the Manitowoc class, but I didn't go to the hoshi one. Yet, okay, let me see. Oh, I had another interesting question.

Someone had asked me what or someone had put like a question in and one of my youtube videos and they said, what's the difference between refrigeration and air conditioning, what's the main difference, and I answered his question with a real simple answer, I said the main difference Between refrigeration and air conditioning is evaporator temperature and control / defrost strategy, and that's really the the difference right, because an air conditioner has a compressor, a condenser and evaporator a metering device, okay and refrigerant piping, and so does a refrigeration system, a walk-in cooler. The only difference really between those is is that in the walk-in cooler system, our evaporator temperature is going to be a lot lower right because we're maintaining a much colder box. Temp versus you know, in an air conditioning system where you're going to be maintaining. You know 38 degree and up evaporator temp, depending on your climate and humidity and all that different stuff.

So that was an interesting one, all right so guys I want to get to you guys's questions. Anybody have more questions in the chat. Let's throw him down into the bottom, and that way I don't have to scroll all the way back up to the top and I'll try to get to some of these questions see what you guys throw down in there. You know, and I had something to I'd kind of get your guys's response from the chat, but you know I don't want to become a tool review channel, but I do want to start talking about some tools that I like and some tools that I use.

So I I might start putting some of those videos up, maybe as a bonus, video or something like that. I'll still try to keep my normal two videos a week to be like an educational topic, but I do want to. I do want to talk a little bit about some of the tools that I use you know per se again, I'm not gon na become a tool review person, there's some other great channels for that tool. Pros has a YouTube channel, Brent Ridley! I don't know.

If he's in here not he does tool, reviews and he's got a podcast on it too, so I'm not gon na do what they do, but I might start talking a little bit about some of the tools that I do use that benefit me and try to Showcase them, or something like that, so keep an eye out for that. Maybe we'll have something: maybe I'll just release them as like Facebook videos, I don't know I'll figure that one out with the new set up here in the office. I do have some ideas about using this set up right behind me. I've got my my trainer board back there for the the duck detectors and a lot of times I'll use that I've done a couple different things on that board, where I put like motor starters on there and wired them up.

But I use that to show different people like when I do like an RCS training class or when I show my guys about duck detectors and I've used it in my youtube videos too, but right below that is a desk and I have some ideas. Fluke. 196. Thank you very much.

Man yeah there. You go yeah, that's kind of the idea. You know I mean don't get me wrong. Fluke 196.

There will be sponsorships, but it's not gon na, be me pushing products per se and that's something that I've had a hard time with, like, for instance, I'll tell you guys there was a tool manufacturer that sent me. They wanted to work with me and they sent me some tools and I told them from the beginning like look, I do not have a tool review channel and that's what I do. I don't mind showing a tool in my video like while I'm working like hey. This is a really cool tool and I like it, I don't mind doing that.

If I'm honest about it, but I told them in no way do I want to change the type of videos that I made well after I did my first video with them. Like again, I just showed the tool that they sent me and then they were like. Oh, would you mind changing the title of your video? Would you mind including links to where they can buy it, and I was like no that's not what my channel is about. I'm gon na do this on my own terms and if I show a tool in my video, it's because I use it and I like it, I'm not gon na try to push stuff that I don't use or don't like.

So you don't have to worry about that, but there will be a channel sponsor coming on soon sooner than later will be coming, but it's not going to be something that it's gon na, be someone that I agree with, and I'm gon na pick them very very Carefully, okay and I'm gon na try to give you guys the best best content that I can. But you also have to understand that I invest a lot of time in this past, the point of it being a hobby anymore, because that's what this started out was something fun. You know a video for my guys and then it turned into something interesting and then now you know it is what it is and I'm investing a lot of time. So I do have to get some kind of reward for it, especially with my family missing out on a lot of the time that I invest not just these live streams, just in my videos too.

But again, I'm gon na stand up and make sure that my content, isn't you know, I'm not gon na compromise. What I want to give you guys. Basically, so just don't worry about that all right. What is the difference between home refrigerator and commercial? Would it start on small with home? Would it wait? I'm sorry did I got ta reread that question? What is the difference between home refrigerator and commercial? Would it to start on small? I don't understand your question there, but if you could it's a John fall, can you rephrase that okay AVR 1961 best way to purge lines when checking the pressures? Okay? So when you're applying your gages, typically what you want to do, if you're using so okay, so I have an interesting thing right here, so service gauges.

This is, this is a problem that we have with smart probes versus service gauges because smart probes, it's really hard to vent or to purge the air. That's in the lines right when you put a smart probe on there, because you're pushing up against the air that now granted on a smart probe. It's a very, very small amount on service gauges. It's really easy to purge your lines, because you connect your fittings and you you make sure the valves are closed on your gauges and then you go to the opposite end where it connects to your gauges and you open them until you get refrigerant blowing out.

So the theory is, is that you blew air out right, but in all reality I mean. Are we really blowing all the air out or are we mixing with the air? Because I really think that we're gon na mix with the air, if you I guess the best practice on working with gauges - would be to leave them loose when you connect them so that immediately it pushes the air out. But I guess you know thinking about it. They're still gon na be a little bit of mixture of air in there, so you just got to do your best to purge things as you're, going to try to prevent the amount of air and moisture that you get into the system.

So all right, let's go back up in here. Okay, what is a dumbed down version of enthalpy? What, when would you need this? It's kind of hard to dumb down enthalpy? Okay, it's the heat content of the air right, but it's kind of hard to dumb down that one. Why don't you throw me an email on that one bud and I can better type that as it helps to start on home refrigerator to move to commercial as a new tech in the trade I understand now, buddy, so does it help to start on home? I mean it's not gon na hurt, but I'm not gon na it's I mean we need technicians working on the home stuff just as much as we need technicians working on the commercial stuff. So I don't want to say don't Oh Gary Carter.

Thank you.