Hello, everybody, I always get like I'm always thinking of the Simpsons, and so when I say hello, everybody, I'm always I'm not gon na do a Simpsons voice, but I'm always thinking of The Simpsons stuff. So hopefully you guys had a nice weekend. Mine was pretty relaxed. Actually, one of my other texts decided to take the on call for me because he wanted some extra hours.

I don't know if that quite worked out for him, because I don't think we really had too many calls over the weekend, but it was still kind of cool that he took that for me. So I see there's a quite a few people in the chat and as you guys post questions, I will definitely try to get to them as usual. Please try to put them in caps lock. If you guys could please and that way myself and Justin can try to get to them, for you guys so cool right on I'm looking down at my phone because Justin the moderator always texts me and lets me know when things are working out, how the audio Is going and stuff so I appreciate that.

Thank you. Justin got a few uh it's actually. I want to apologize too because guys for those of you that have been sending me emails and YouTube comments, I'm like way behind on them all of a sudden. Recently.

I just got like a crap ton of them and I haven't been able to catch up. I really appreciate the support that I got from a lot of you guys on the little project that my wife and I were working on, where we were kind of going into the how we deal with the HVAC life video series that was pretty cool. I really appreciated that. I didn't know how well that was going to turn out.

Obviously, you guys know: I'm not super crazy on editing my videos, you know I'm kind of rough around the edges with my stuff, but I just kind of like to be straight to the point. So you know I apologize it's not some fancy polished thing with introductions and all kinds of stuff like that and real high video production, but I think we kind of get to the point. So you know - and we actually just recorded another episode this - that will come out this week on Wednesday, where we talked about some other stuff so and we're gon na kind of continue that until it Peters often people don't like it. I just want to get some information out there.

I really want to get to the mental health stuff and speaking of mental health, for those of you guys that don't know forgive me. I do not know the gentleman's name. There's a popular youtuber there that I recently found out just passed away and at least the articles that I've read and everything basically said that he had committed suicide, and you know I really can't stress enough that mental health is no joke guys. You know you know you got to talk to people, you got to get that stuff out.

You can't keep stuff inside when people are struggling. You know, I know it from experience, not the suicide part, but I mean I know that I battled with mental health. You know a little bit too and mine was not serious by far mine was little very minor, but you know that stuff can lead to problems. So you guys need to take care of that.

If you've got anxiety, you've got depression. Talk to someone, okay, there's nothing wrong with talking to a doctor, and I was one of those people that felt you know like. I really didn't need to talk to a doctor about my feelings and all that stuff, but you know what it really did help me and got some stuff out that I needed to get out and helped me to address and made me a better person. So, for those of you that are dealing with mental health issues that have got anxiety, depression go talk to a doctor, guys talk to someone, even if you can't talk to a doctor talk to a family member talk to someone just just get it out.

Okay, you don't want the worst-case scenario to happen. You don't want to. You know, do anything bad! You don't want to regret anything. So you know just I'm gon na get off that ramp, but I just kind of wanted to get that out there so and so yeah.

I really wanted to say what, where I started with that was, I really wanted to say. Thank you very much for all the support that you guys gave on that video, where I was doing it with my wife, and you know it. I think we're it's working out pretty good. So, let's see where it continues to go so at the same time, I've had a couple other videos that I've released and again I just haven't - been able to really get to the comments you know I try to answer almost all the comments as much as possible, But for some reason you guys are just blowing me up lately with like too many and what happened was there was two videos where I just wasn't able to get to them and then now I'm way behind and it's just kind of overwhelming, but I will get To them you know and don't hesitate if you guys ask me questions via emails, because there's a few emails out there too, that you know if I showed you my inbox, it's not huge, but you know I definitely like I'll put like a little star next to Certain emails that I really really want to take some time and answer, and there's probably five or six of those right now that I need to get to so don't head at eight to send me another message: you're not gon na make me upset.

You know, usually, even if, if I don't have a proper answer for your email, i'll usually acknowledge it and send you a message saying: hey. I really don't know how to address this or something. So if you don't get a response from me, don't hesitate to send another email and i'll definitely try to get to that so yeah, the tito 209. I definitely am going to talk about the mental health and stress of refrigeration texts.

It's it's insane. Okay, like i said the video series that i'm doing with my wife, we're addressing that and i'm gon na tell you guys my stories so and just kind of tell you how we learn to deal with things and that's the whole point of the video series that I'm doing with my wife and again for those of you that are just coming in I'm addressing the the new video series that I started called how we live with HVAC our life and it's not, and just to clarify guys. That's not gon na be a replacement for my normal technical videos. Okay, when I do release the the video with my wife, the series, you know I'll do a couple.

Different parts it'll be a bonus video, so it's not going to take away from my normal technical stuff. Okay! So but, like I said, there'll be a new one released this Wednesday, so you guys should see that in your feeds, once it pops up so um, I'm gon na go ahead and hit this question real, quick, Hans, Peterson. You said what would I put in a tool kit for an apprentice? You know that that's I can talk about a few things right now, but I think that's more suited for me to actually make an actual produced video about that, and I can talk about the basic tools and I will I've done a like a tool bag, video Before but I've been thinking about doing a more updated one, just because some people ask me it's like. Sometimes I remember in my head, like yeah, I've made that video go find it, but I youtube is kind of difficult for finding videos it'd be really nice.

To add like a search feature, or it was easier to search for things I should say so. I realized that some of the videos that I've made maybe get lost in the shuffle, because there's hundreds of them and so I'll start to redo some of those videos and kind of update them on the different tools. But I mean for the most part you know for an apprentice. It's gon na be basic tools.

You know I have an apprentice riding with me right now and you know it's taking him some time to kind of realize. Like I like to show him, you know, or I tell him to pay attention to what's in my tool back, you know, and I keep things in my tool - bag that I use. If I don't use it, I take it out of my bag. So I think the more important thing that I would say as far as an apprentice goes is, I would rather say what tools you don't need.

Okay, because a lot of times when you have an apprentice come with you, he comes with a toolbox in his back right, whether it be a bucket or a backpack or whatever it's like, hey, bro, you're, not gon na need shears. You know: hey bro, you're, not gon na need a hammer like we don't use those things in our tool bags. Ok, it's ok to have a hammer or some shears in your van, but you don't need to carry it with you every day. I think that a lot of times, people especially apprentices and new guys they get excited because you know it took a lot for them to be able to buy those tools, and I get it I'm a tool.

I love having tools, but you know they tend to carry things that they'll never use or they buy the fancy stuff. One thing that I like to tell the guys that I work with is: is you know I don't for the most part I mean there's some exceptions, but I don't buy tools that I can't beat the crap out of ok and you guys you guys would probably Be sickened, you know, if you saw me taking my channel locks and using them as a hammer, but I can't carry a hammer in my bag. It's too heavy, so I have a set of lineman pliers and a set of channel locks and those things act as hammers too. I prefer to use my lineman pliers because the channel locks, if you hit them in the wrong spot, they'll get stuck.

But you know, that's also why I don't buy some of the Kinetics tools because they're very very nice, and I really like them. I see what people using them, but I need to be able to use my tools and beat the crap out of them, and you know the Kinetics ones, they're so light that I wouldn't be able to use those channel lock style tools as it. You know as a hammer different things same thing with my Crescent wrenches I'll use them as a hammer too. You know screwdrivers and stuff like that.

So as far as an apprentice goes, I'd be cautious about buying. You know really fancy something that I really see happen. All the time and I'm even guilty of it sometimes too is carrying like a really nice Klein, HVAC, 11 and one you know, because if you lose one of those bits that thing's pretty much useless and then you have a twenty dollar screwdriver 25 dollar, you know It's 11 and one screwdriver that's missing a bit and that sucks and yes, you can order them. But you know how difficult it is to sit down and try to order something online.

So so, but I will definitely do something for an apprentice and kind of go through the things that you use and you know, but I think it's more important like I said, to talk to an apprentice about what tools he doesn't need because they tend to bring Way too much you know and don't get me wrong. I appreciate that you have some hand-me-down tools that your grandfather gave you and you know they lasted him forever, but some of those tools are little outdated and a little too heavy. So you know sometimes it's smart to get some more efficient, newer tools that will last you a while, and you know that don't weigh 55 pounds for a crescent wrench. I had a guy one time that used to carry a crescent wrench.

That was for an iron worker and it had a you know a. What do you want to call like a four lining up iron beam, so you know like a point on the end and it's like dude. What are you carrying that thing for you're gon na poke your eye out with that thing? You know it's gon na pop off a nut one time and hit you in the face, and it was just kind of silly like his grandfather gave it to him and he loved it was kind of running joke at the company. Is that he had? You know its grandfather's tools and, and again I realized that nobody, you know everybody can't afford to go, buy the most expensive tools, but at the same time you got to be practical.

You know you're gon na hurt yourself as an apprentice or a new guy carrying around these bags that weighed tons of weight. You know - and you know, I'm not talking crap about heavy bags because I carry a Vito backpack because I choose to, but you know I strategically have the tools that I need in it so and they're pretty basic. So but you know anyways. Alright, I'm gon na go down here and see what else we got going on here guys if, if I've missed some of your stuff, make sure you guys put it down in the chat again and I'll try to get to it, make sure you try to keep It in caps, lock, yeah and that's another thing.

I just kind of scrolled through the chat - and I saw it. Another thing someone pointed out is that you're gon na lose tools like crazy, and that is true. You are gon na lose tools. You have to accept that, for instance, when I go to the supply house and I buy digital thermometers, you know the little pocket thermometers, I'm not gon na joke.

With you yeah I mean I'm gon na be serious with you. You know I buy probably five or six at a time and yeah they're twenty bucks each, but you know there's nothing worse than not having a thermometer that you need when you need it. Okay, so I buy you know five or six of them, and usually the supply house gives you a deal or something like that for buying that many, but I mean I do because those are those are high loss items and the same thing I care a client 11 and one with me right now, because I'm pretty careful about using it and not losing the bits and the fact that if I do lose a bit it's on me, but as a new guy or an apprentice, I wouldn't suggest you carrying those really expensive, 11 And ones, I would highly suggest that you carry you know just the the four five dollar orange four and one or six and one from Home Depot you know like and and that way, if you lose it, it's not that big of a deal, but something like That I carry an extra screwdriver or two in my van me personally, I have like a little toolbox that I have and I carry extra crests and wrenches extra service wrenches extra set of channel locks. I actually have a bigger set of channel locks.

You know so I there's quite a few extras that I carry and I personally have three sets of gauges, two of them that I use regularly and then one of them is a backup actually, the I should say two sets of gauges. I have a new set of s mans and an old set of s mans, and then I have some analog. Stubbies they're not analog, but you know just normal, Yellow Jacket, compound gauges that I can that have just little fittings on them and then that way I can use those on little R, 290 regions and whatnot. If I don't want to use like my field piece probes, which I carry field piece probes with me too so, but you know, there's there's definitely some stuff and you got to be cautious.

You know something that I run into when I work with with other people. So I have two guys that when I'm working with them, I often will have them help me, while I'm finishing something up, they'll go load, my van up with my tools and what I tend to find is when I work with other people, and I let them Put my tools away, my tools get lost because for me, I'm - and this is I'm gon na - give you an example recently went to go grab my torches out of my van and they had the oxygen and acetylene was completely empty and it's like hey what happened Here, because I know we just use these three days ago and these things were full, you know, and what I noticed was that the the valves on the end of the tanks were open, and I talked to the guy that I'm working with and I said, hey Look: here's the deal when I put my tools away. I have a routine that I follow. You know I open the the torches up.

I put my striker in there my sandpaper in there. I don't use a service wrench very much anymore, but I used to put a service wrench in there. You know - and I had everything in there and I check all that. Then I'd wind him up the special way that I wind him up.

Then I would turn him off and then bleed the gas out of the hose as well. What was happening was, I was giving him to them and I was making an assumption again making an ass out of myself because I assumed they were gon na. Follow the same four cheese procedure, but not necessarily they just put him away well, my valve must have got cracked when it was moving, and you know the oxygen and acetylene completely leaked out of the torches, so that sucks it's stuff like that, and that would be Another example of something that I would give advice to an apprentice is is there's a lot that goes into paying attention who you're working with and how they organize their tools and where they keep them and pay attention. Don't just sit there on your phone all day.

Long and not paying attention, you know you know, watch what they're doing when you get out of the van you. You know watch as I grab my torches, you see that whenever I grab my torches, I grab my kneeling pad or whatever I do. You know where I grab a spray bottle and some towels, because that's gon na improve the way that you work as an apprentice or as a helper or even just another guy, that's working with someone. You know paying attention to that kind of stuff another.

Well, I'm kind of going off on a rant about apprentices and different things, but another thing I'm gon na give like serious advice to is you know it's very interesting, because I find that a lot of people don't know how to get anywhere without navigation. These days me, I guess I guess it's hard, because I came from a time when we were still using Thomas guides and Matt books, okay and then at the at that time. You know we had something called MapQuest. Mapquest was where we would print out directions to something the night before that was revolutionary when we got MapQuest right, because we didn't have GPS on our phones yet or anything like that.

The first GPS is that came out were insanely expensive, but anyways we're I'm going out with this is I have you know people that I've had in the past that couldn't navigate anywhere without a GPS or they'd end up, I'm not joking with you. The GPS would send them in the complete wrong direction. You know, and it's like hey, don't you pay attention he's been there four times before you know, but to them they just follow the navigation and don't pay attention to what they're doing they're in in a zone and just not even paying attention number one. That's dangerous because if you can't pay attention to where you're going and your surroundings, then obviously you're not paying attention how driving to but um, you know you need to be observant.

You need to pay attention and I've always been a person that, even when I was a kid you know once I got my driver's license, I knew how to get everywhere, because when I sat in the car I would always look and I'd recognize freeways and I'd Recognize, oh, this is the exit that I go to go here, and so you know, but that's a really really big thing, especially for you know, apprentices and new guys is, you know, paying attention to where you're going and if you're sitting in that passenger seat. Sometimes I might have an apprentice drive but let's say he's sitting in the passenger seat just because I like to drive myself, you know instead of him staring at his phone all day long. He needs to pay attention to where we're going. So that way, you know he's gon na go to that job with me three four times and then you know eventually he might get his own van and then he's gon na be required to go there he's gon na be like uh.

How do I get there? You know, or oh the navigation told me to go the wrong way. I'm sorry! I ended up in Hemet and I was supposed to be in San Diego, you know or whatever somewhere still it's silly like that, but that stuff has happened and it's ridiculous. So you know you guys need to be more observant when you're with people and rely less on technology. I mean technology is a great thing and I'm gon na talk about how technology helps us here in a little while too, but you need to pay attention to where you're driving and you know to your surroundings: um, okay, hell, yeah yeah, I'm kind of going in Here and reading the comments here, guys: okay, what are the symptoms of moisture in the system and how to diagnose it? Ralph Wow Ralph, there's a lot of stuff.

Obviously, when you're testing for acid in the system, that's what a liquid line sight glass is for. That's one thing that we can do to prevent moisture. If you have a system that has a lot of refrigerant leaks, you need to really be skeptical on whether or not there's a lot of moisture in that system. Let's hope that you have proper filter dryers in there, because you know a dryer.

Plugging up is going to be a great sign of moisture in the system. You know and moisture can be a hard thing to find before it does its damage. You know, unfortunately, unless you know it's very hard to find, but I mean if you were doing routine acid tests on a system that would be a great way to find moisture, but other than that, it's going to be difficult. I mean less.

You have a catastrophic event like a grounded out, compressor or something you know. Moisture can be a definite difficult thing to find. So, unfortunately, you know with the with with the way that people do preventative maintenance days these days or the lack of preventative maintenance. That seems to be the trend we tend to have more problems and then also people not following proper refrigeration practices, vacuuming the system down making sure you're purging your hoses before you blast, and you know that refrigerant in that has a lot of air in the lines And different things: okay, I'd be glad to talk a little bit more about that Ralph.

If you want to send me an email so yeah, I am in rant mode, Sean all right. Okay, I'm gon na yeah Justin, I same thing dude I mean some. Do I get it sometimes it's kind of boring for a helper. You know, but and in I'm not mad at the guy, that's riding with me.

He does a great job and - and you know I when I first get in the van in the morning - I'm gon na be honest with you. I don't like to talk. I need a half hour 45 minutes of don't talk to me. I need to just drink.

My coffee and you know I I have mental problems. I know I do and I'm kind of an so that's just my routine. I need some some quiet time. You know.

So if someone jumps in the vehicle - and they start talking, my ear off they'll - probably get the irritated. Look that I you know, I probably give them a nasty look or something it's like. Do you just don't talk to me for 45 minutes. Let me wake up, but once I get going, I don't mind if they ask me questions when we're driving and stuff like that.

I just need that time to wake up in the morning and then I'm good man. I appreciate when people ask me questions or when people you know say hey, why did you do it this way or you know what I really like? I I actually liked to be challenged in a polite way, not in a rude way, but if, if a new guy comes to me or even someone in a video, I really appreciate when they say hey, you know I was taught to do it this way and You do it differently. Why I love to answer those questions and you know, and you know to explain well I do it for this reason for a certain you know, for whatever it may be. So, okay, what the hell superior has anybody ever ran into a cow with their van it can do holy, crap dude out of the blue.

All I see is: has anybody ever ran into a cow with their van? No, I have not ran into a cow. That is a funny comment superior I mean, I understand it's a legit thing right, but holy crap dude. That was great in the comments right. That is too funny.

I have never ran into a cow. I've hit a coyote one time in my van because we have coyotes where we live. It was pissed me off too because it was a brand-new van but yeah, okay. Why don't I work on residential systems? I stay busy enough working on the commercial stuff.

That's plain and simple: I had said it on a podcast that I recently did that I'm. I honestly am intrigued by residential work. I would like to do a little bit more of it, but I'm gon na preface that was saying one of the cool things about dealing with commercial customers is, I don't have to deal with homeowners? Okay, I don't have to deal with people that are having to spend their money that either they had to make a choice on whether or not to fix the air conditioning system or feed their kids. Okay III don't like to have to deal with that kind of stuff, so I'm intrigued to work on the residential stuff.

Just because I don't do it very often I'll help a friend out or something like that, but as far as having to deal with homeowners on a daily and collect money and stuff, I'm not interested in that. So! Okay, let's see do you have hooking up probes on small systems, Eric B, I'm kind of confused on that one, but do I have hooking up probes on small systems if no room, are you asking me if I have any tips on hooking up small probes? If there's no room, I'm assuming that's what you're asking me and I like the field piece probes, because they have that little angled fitting that also I see that test. Oh just came out with two. So that way you can get them into weird places and then unfortunately I don't have a picture of it.

But I have a charging adapter on my field piece probes and you can move that charging adapter around to kind of put that field piece probe in a right angle or different things if that makes sense. Okay, let's see okay, I'm gon na get to some of the things I have on here. So I had a really interesting question and this may sound kind of silly to some of you guys, but to someone that doesn't quite understand what could happen here. I want them to understand the repercussions of this question, so I have a video a long time ago where I showed a swamp cooler.

I've done a lot of work on this refrigeration rack, it's a beat-up old, refrigerator rock, with a swamp cooler attached to it, and I'm assuming that the guy watched, I really didn't pay attention to what video was attached to. But I just saw the comment and I saw the swamp cooler and I kind of read it and remembered it. He asked me why, don't I add chlorine to the sump of the swamp cooler to reduce the slime and scale okay. So, first off I want to explain: I don't know if you're watching right now, I did mention in here, but first off chlorine is a highly highly corrosive liquid.

Okay, it will eat everything, it touches so number one. You do not want to add chlorine to a swamp cooler and we're not talking to swamp codes blowin down into the building. All this is doing is, is pre cooling, a refrigeration, rack, okay, but if I added chlorine to that swamp cooler number one. The water evaporates in a swamp cooler so fast that it would be a problem.

Okay, number: two: the chlorine is gon na attack everything metal inside that swamp, color and slowly disintegrate it actually pretty rapidly disintegrated. It's also going to get airborne and blow into the rack and attack everything that has copper in it too. I'm gon na tell you a story. I once had a customer, it was at a.

I can tell you, because they don't exist anymore. It was that a game works game works used to be an arcade. You know that was like a national arcade, they had everywhere and they were in shopping malls and they don't exist here anymore. But I did work there, one time and they added like a little bar out in the middle of the game room and they just kind of built a platform and they had a refrigerator out there with like a co2 tank and they had a keg in it.

And he was it so they were serving beer out of this refrigerator, but what kept happening was they kept having drains plugging up on it and they kept having to pay us to come out to blow the drains on? They did a preventative maintenance, but we informed them like hey. You guys want to be cautious about this, and I was recommend to take a cap full of bleach once a week and pour it down the drain, then flush it with water to kind of clear the slime out, because you know the the chlorine and bleach will Eat the slime away and help to sanitize and prevent it well that guy did that and he noticed that the slime was reduced a lot. But then he took it upon himself because he thought that if he took a cup of bleach he set it in the refrigerator and left it in there and he kept replacing that cup over and over and again now they had a brand new refrigerator and that Refrigerator needed a new evaporator coil after about three weeks of operation and what we and he was like blown away. Why do I need a new evaporator coil and I told him: it's not gon na be under warranty and he's like.

Why not and I go cuz the coils corroded away because you kept putting that cup of bleach. You know and - and he understood like, I told him - to pour bleach down the drain of the beer dispensing system not put a cup inside the region. So that's just an example of how corrosive chlorine can be okay. The next thing you never ever want to use chlorine.

Obviously, I'm just gon na say this just to be safe, but chlorine can create all kinds of toxic gases, so you always want to be careful about mixing it. With things too, I made the mistake of mixing bleach and ice machine cleaner one time, and it was not a very happy day for me because what happened was I was cleaning an ice machine and we used to use bleach on a regular basis to clean ice Machines we would clean him with ice machine cleaner first and then, instead of using liquid sanitizer we'd, put like a cap full of bleach in there. So I clean the ice machine drained everything out went down the drain. Then I clean the eye.

Then I sanitize the ice machine with bleach and I poured that down the drain too. Well, there was still enough of the concentrated ice machine cleaner. At least this is the way I could figure it happened. There was still enough of the concentrated ice machine, cleaner sitting in the pee traps and when the bleach went down there and mixed with that - and I kid you not.

Luckily - the restaurant wasn't open yet. But I was freaking out because, as I was getting down from the ice machine, the smell overtook my lungs and it was like. Oh my gosh. This is horrible and then it started coming out the other floor drains too.

It was freaking me out. Luckily, there was nobody in the building, so we didn't have to evacuate. We just opened the doors, but you want to be very, very careful about using corrosive chemicals like that. So, okay, I want to get to these comments real, quick and then I'll get to my other questions.

Okay, so I wonder if ice machine cleaner would work for that. I don't know what your what you're saying for that one. So I've been working on a commercial heat pump that it takes 15 pounds. I work in New York and when it's winter the system is overcharged, but the summer comes and it's under charged any ideas.

Yeah you've got an issue there, but are you saying that it takes 15 that the manufacturer says the unit takes? I think you've got a reversing valve issue or something like that because you shouldn't have to remove gas. I know that was an old wives tale that you had to do a long long time ago way back in the day where people would think they had to add gas in the winter and remove it in the summer or vice versa. That is not the case. Usually, there's an underlying problem.

I don't know what brand the unit is, but, for instance, like a lot of times, people think that it takes 15 pounds because they're they're charging via super heating subcooling, but maybe they're not paying attention to the airflow or other things. There's a lot of factors that can go into play there, so you could have plugged up metering devices if it's like a carrier package unit with a control metering devices. Those things can get restricted and people think they have to add more gas to get it to work right. There's a lot of variables there.

So I'd be glad to talk to you more about that. It's Jonatan Lopez! If you wanted to send me an email to HVAC our videos at gmail.com, but that's definitely not right, so in the place of bleach. Okay, I see what you're saying Zack yeah I mean you could use ice machine cleaner, but no really realistically, on the swamp. Color is the biggest thing.

Is you have to understand? Ralph. Thank you very much man. You have to understand on the swamp coolers that they're evaporative coolers, okay, so the calcium is not gon na evaporate, so the water will evaporate, but the calcium stays and a lot of times. You know if you have a nicer evaporative cooler, what they're gon na do? What you could do to reduce the calcium buildup in there is, you could have like a bleeder on the water pump so that way, when the water is being pumped out, it bleeds off so much of that water and wastes it down the drain because then, theoretically, You're gon na be changing the water in the swamp cooler.

More often, okay, captive air has a pretty cool design where they're using they don't have a standing sump in their evaporative coolers and basically they just have an on-demand water spraying like a misting system that just spreads the pads so many times, but I mean anytime you're Using an evaporative cooler, you're gon na have water and calcium buildup. That's just part of the beast: okay, evaporative cooling is it's good in some ways, but it's also very bad and very difficult to maintain and a lot of other ways. So, okay update on the merge tito 209 yeah. That's the whole thing guys.

I have ordered more shirts, I'm just the people that I'm using are taking forever. I tried using teespring and it's just taking forever to get the stuff, so I'm just waiting for them to send me something. I promise you guys I'll get to it. I know I really want them to, but I'm just so particular about the way that they're turning out so okay, I'm gon na get to uh I'm gon na get to a couple more of my things.

You guys make sure you put your questions in caps lock. So that way, we noted that they're actually questions and not just think it's going on in the chat. Okay. So oh, this is a great one.

So the question was: how do we calculate the capacity of equipment to confirm it is sized correctly - because I had mentioned in my previous video that I uploaded actually today that the equipment was oversized, and so the person had asked me like how do we know in The field if our equipment is oversized. This is something that I deal with on a regular. Ok, because I always say that I have trust issues and I really do I like to verify information myself. What I find is, as majority of the equipment out there is oversized now that doesn't mean that I'm gon na when I replace it, I'm gon na put smaller equipment in there, but it just it.

There's there's a lot of reasons why we might over size our equipment. The biggest reason, typically is if we have very, very high ambient temperatures and what happens with the refrigeration system is, is you know I always say that refrigeration works in a very small envelope? Typically, without any kind of you know, mechanical sub, cooling or different things. You know our window of proper operation for a normal walking cooler system is about seventy to ninety degrees, let's just say seventy to a hundred degrees. Okay, but once you get past a hundred your capacity, the amount of BTUs that compressor can or yeah the capacity of the system is reduced dramatically once you get past 100 degrees, really when you're in the ninety degree range, but most of our equipment can handle a Hundred degrees, anytime, you get below 70 degrees, then you start to run into problems with the expansion valve feeding properly, especially on older expansion valves, and that's why we have head pressure.

Control valves fan cycling, different things, okay, so a lot of times, manufacturers or engineers will over equipment a little bit. Okay for a couple different reasons, but a lot of them are to lower the discharge temperatures of the compressor and to reduce the liquid saturation temperatures, okay, which are all greatly affected by the outdoor ambience. So we will often times oversize a little bit which this is kind of becoming a little bit less popular, because a lot of people are worried about efficiency and electricity usage in different things, but you can also damage equipment by over sizing. It too much.

If you have way too oversized equipment, then you're going to burn up your compressor because you're not going to have enough suction gas coming back, you can have all kinds of problems. One of the common things right now is, if you're converting equipment to our 427, a I'm, not 427, a 448 a which is the new replacement refrigerant for 404, one of the more popular ones. Most manufacturers are going to encourage you to upsize, whatever the BTU requirements of what you've calculated. You need.

They'll, typically tell you to go with one size bigger. So if you calculate that you need a two horsepower, condensing it to run your evaporator with the normal. You know load calculation, they're gon na tell you to go with like a two and a quarter or two and a half horsepower, because they're concerned about the discharge temps of 448 - a so you know a lot of that goes into plate. Two different manufacturers tend to, in my opinion, oversize their equipment cold zone is like or Russell's one of the number ones I tend to find oversized.

Condensers, I'm not necessarily saying it's a bad thing, but it also can kind of mess you up if you're gon na go in there and try to make sure a system is operating. So you know if you think it's gon na operate perfectly yeah. It's not necessarily the truth and I'm gon na say: there's not a lot of refrigeration equipment out there that operates a hundred percent by the book. Okay, you got to kind of use some some some you you got to think about it.

You know and you're just gon na have to use your smarts basically and know when something's not right. Okay, a lot goes into commissioning systems, it's very important to Commission a system and write the information down. So that way, you help the next technician, something like when you do a start-up on a walk-in, cooler and you're. All done it'd be really great, and I'm not even gon na say that I do this all the time, but it'd be really smart.

If you commissioned it properly wrote down what your your outdoor ambient over your condensing temp is write down. What evaporator TD is actually measured, write down what your superheat is at what temperature outside your your sub cooling? You know if you're working on a system that doesn't have an expansion belt, but you know doing that is gon na help you down the road. So that way, you know if someone else comes in and you have that information now, it's very rare that people commissioned equipment like that, but you know something like that: could really really help someone to try to figure things out so as far as over sizing condensing Units and evaporators, how do I verify if the equipment is correct? Well, I carry a computer with me. I can't expect my technicians to carry a computer with them, but I carry computer with me.

So you know, if one of my text calls me and says hey, I think this equipment sits something's, not right. You know this is going on. The first thing I do when I look at that equipment is, do a load calculation really quick, there's a couple different software's out there Trenton makes one and Russell makes one which you can download for free. I believe yeah and it'll do load, cut refrigeration load calculations, for you there's also um.

If you actually happen to have it sitting right here, if you download the heat craft, refrigeration manual engineering manual, it tells you how to do a heat, heat loss or heat load. Calculation on a refrigeration system, you could do it by hand. I prefer to use the software. You just got to input a couple numbers.

You basically input the indoor or the inside diameter of the box, the height the width and the depth of the walk in what temperature you want to maintain. What the outdoor ambient is, how many people are going to be in the box on a regular basis? How many lights, how many doors you know all that information? And then it's gon na give you a BTU load requirement and then you size, your evaporator off of that load requirement, and then you size, your condenser off of that. So if I was to verify you know, I would start with the load calculation then look at what size there should be in that box. Give or take a you know, one size, bigger one size smaller and then look at how big the condensing unit is, and that's gon na help me to understand things.

I will tell you that it's very rare that I see a walk-in cooler or a walk-in freezer that actually has a 10 degree evaporator TD, which most equipment is supposed to be designed with a 10 degree TD. But it's very rare that you actually see that. So you know all right: let's see if I'm missing any questions in the chat here, guys. Okay, how do you do an efficiency test on a scroll compressor if you can't pump them down and watch your gauge like we do on reciprocating compressors? Well, Ralph, if you're, lucky and you're working on a Copeland compressor, then what I want you to do is download the Copeland mobile app and they have a performance calculator on the Copeland mobile app.

You input the the amperage, the voltage, the low side and the high side pressure, and it's going to give you a pass or fail scenario, basically to tell you if that compressors operating within Copeland's recommended guidelines. Okay, that is the Copeland mobile app. That's another video topic that I'll do. I know I've done them before, where I talk about the different apps that I use.

So that would be how I would do a performance calculation on a scroll compressor so come see, doesn't really have a performance calculation. I know they've been trying to push their scroll compressors again after a hiatus for like 15 years, but um yeah. They don't have a performance calculator that I know of yet for the Tecumseh ones. So have I replaced a reciprocating compressor with the scroll? I have just Russ and it's been a problem.

It was an older carrier packaged unit, and what I find is is that when I would put the scroll compressor in there, you have to be careful and I'm gon na give you an example. You can't just trust what a supply house says: okay, supply house. Is, you know if you call a supply house and you say: hey I've got a compressor. Can you give me a replacement compressor? That's a scroll.

They'll say yes! Well, what you got to be careful about is how your air conditioner was already designed. So oftentimes supply houses will give you oh yeah, this one's just a little bit bigger, but it'll be okay, you know and then what happens is. Is you'll go off on head pressure or something like that or not have proper oil returned or different things? So you have to pay attention, be very cautious about replacing reciprocating compressors with scroll compressors. Unless I would say you should try to get a hold of someone at the manufacturer or have an engineer from that particular supply house.

Not just a counter guy. Tell you yeah. This will work a lot of times like companies like you know, bigger supply houses, they have actual engineers, that'll do load calculations and they can ask tech. They'll have like a technical support department, some of the smaller or some of the air conditioning supply houses am not a fan of their tech support, but some of the refrigeration supply houses.

They have some pretty good tech support, guys that will be able to help you out with that kind of stuff. So all right can you adjust harvest time on Manitowoc ice machine hashim? There's that's a loaded question, but there's a lot of factors that go into the harvest time on a man who's walking machine, so the compressor could have efficiency problems, ice thickness that there's so many different things. I can't even begin to answer that one right now so Hashim I'd encourage you to send me an email to hvac our videos at gmail.com, and I can maybe get some more context, but it when you do send me an email, give me more context. What's the model number the machine we're working on? What's going on with it? Why do you want to decrease the harvest time? What what is it that you are trying to achieve here? Give me some context and then I can try to help you out a little bit more all right.

Let's see yeah I Adam, I did see Brian's Copeland tear down class video. I started to watch that before the stream. I didn't get to finish it. Yet, if you guys have never had the opportunity to go to a Copeland teardown class, do it oftentimes.

There are a couple hundred bucks, but you wouldn, ology will get from a Copeland. Teardown class is totally worth it, and usually you get paperwork and booklets and different things to sew, but yeah, if you guys haven't Brian, did upload a video of a Copeland teardown class where they had a Copeland engineer out there talking about different things, to look at And I think they were leaning more towards supermarket stuff, but I mean that still applies to normal compressors too. So, let's see, how can you be successful, Joshua Keating? How can you be a successful as an apprentice, an HVAC? The first thing I'm going to tell you the first day of your apprenticeship, is don't take this the wrong way but shut your mouth and listen. Okay, that's gon na be one of the first things I can tell you now, I'm not saying that I don't let my apprentices talk, but oftentimes you'll have people that say I learned this in school or you're wrong or this or that or no no.

No. No! No okay, first off, don't be rude, be polite. If you feel that someone's not doing something right, then ask them the right way: don't be a dick about it, okay, but how? What that I think you could do to succeed as an apprentice number one pay attention number two do not stare at your phone all day kind of like I was mentioning in the beginning of this video or this stream do not stare at your phone, while you're Driving the whole time ask questions as long as you're not bugging the mechanic you're riding with okay pay attention to what you're working on take pictures on your own phone of models and serial numbers and research. When you get home, you know think about the job.

Don't just go home and turn off work go home and think about what happened that day, try to analyze why the tech that you were working with did something. I'm gon na tell you right now as an apprentice, you're, probably gon, na come into this field. After you finish school and you're gon na think, oh my gosh, my school taught me one way and this tech is a hack because he's doing it this way, that's not necessarily true. Okay, there's a lot of things.

You're gon na learn in school that I'm not gon na, say you're gon na throw out the door, but there's there's the right way to do things and then there's sometimes the way you've got to do things to get things to make it work. Okay and then also to you, can't always be a hundred percent proper and do everything the right way. Sometimes you got ta wing it. Sometimes you've got to do certain things to make a refrigerator work properly, and this is actually gon na segue into another question that I had and I'm gon na answer.

This too, I had a question about and you're more than welcome to send me an email on that Joshua and I can answer some more okay, so I had released a video last week. I think, on fixing or reaching cool a reach-in freezer freezer drawers. I think that was last week sometime and I had to change an expansion valve I've gotten this a few times. Actually, where I get quite a few people saying how come I didn't protect that valve or how come you know, while I was braising it or how come my torch was so hot.

While I was braising it, you know, I probably damaged that valve. That's what people say: okay, first off, you have to understand something. You guys don't understand what I was going through when that happened. Number one there's no excuse for cutting corners okay, but when you're working on those omni temp coils, I think a couple people said that I should have pulled that coil out before I change that valve, I'm not pulling a coil out of a box.

Okay number one. I was already climbing into that thing all super-tight right and to undo all the electrical and everything that's a nightmare. You're asking for trouble trying to pull a out of a box like that. Sometimes you can get him out, but that was not one where I could have gotten the coil off number two.

Why was my torch so hot when I was brazen in that Valve? Well, because, if you listen to what I said in the video, I had to weld what I call blind. Ok, welding blind, in my opinion, or my definition of that is, is only be able to access one part of that joint that you're brazing on or welding on. You know and not be able to get your torch all the way around to flow the heat, to make sure that your solder flows around so oftentimes. What you have to do is you can only get your torch in one particular corner of that valve and you got to heat the heck out of it to get it hot so that way the solder whips around and pulls into that valve.

100 percent. Okay, sometimes you got to do what you got to do. I think I got a bunch of complaints and feedback on a package unit that I was changing, expansion valve on to on a Linux. You know, and they were like how come you didn't put a towel on that valve or wrap that valve or all this different stuff? How come I didn't spray heat gel on there, whatever I don't like heat gel okay, because I've had heat gel bite me in the ass before, where I sprayed it on there and then it dripped into my joint and then I couldn't get the joint to braze Anymore, okay, I don't mind using some of the heat compounds like the Viper wet rag, but that particular package unit, I'm probably telling you guys something you probably can't even picture, but the particular packaging it was a Linux packaged unit in those valves are so tiny that I couldn't get the heat compound on there.

Okay, sometimes the heat compounds aren't a great answer either, because a lot of times the the heat compound will fall apart. If it's like upside down or something it'll fall on you, while you're braising on it so oftentimes again. Maybe it's not the most proper way to do it. I will Bray as a valve without covering it up and you got to do what you got to do.

Okay, so that's gon na. Do that. Let me get to these questions here. Sometimes it's fine to be a hack to get the walk-in yeah.

That's true! Sometimes you got to do what you got to do so. Okay, let's see if I'm missing anything else, what else? Oh, I'm not seeing any other caps lock things guys, so I'm gon na get to some more of this other stuff. It's hard for me to pay attention without having dead air to the chat. So that's why, if you guys got questions or things you want me to address, it really helps.

If you put it in caps, lock so use a jeweler's torch yeah, you know, but it wet rag does work. I mean it's nice, but sometimes it doesn't fit where you needed to fit so and as far as the jeweler's torch you know, I I don't carry a bunch of those things. I just have my standard tip. I mean I have some of those weird tips that have different.

You know flames or you can do multiple flames and stuff, but that's just gon na catch, something on fire when you're working in a tiny little region. So, okay, all right make your customers happy. Yeah. Okay same question: I get all the time.

Why do we still use mechanical defrost, clocks and temp controls versus digital? A lot of these questions come from other countries, Australia, Paris, other places. The United States is way behind on our technology, we're starting to get into using digital controls as defrost timers such as like dick soul controllers or the ERC Danfoss controls key to therm temp controls. A lot of them are starting to come with defrost built in you know. I don't make it a habit of going and modifying equipment on a regular a lot of times I like to put back what's in there, because that was the way that it was designed.