Latest / The Refrigeration Mentor Podcast / Episode 205. Becoming a Better Technician with Electronics with Andrew Freeburg

Transcript

Episode 205. Becoming a Better Technician with Electronics with Andrew Freeburg · The Refrigeration Mentor Podcast

• 0:00
  andrew: I tell everybody that I work with, all my apprentices, 15 minutes a day. Give me 15 extra minutes studying something that you don't know. One thing a day, one thing a week, you'll know. That much more in a year, that extra amount of time that you put in yourself. You're going to be that much better. I can guarantee it.
• 0:01
  Welcome to the refrigeration mentor podcast. I'm your host, Trevor Matthews as a former technician turned entrepreneur. My goal is to really help train you, educate you, and mentor you in the commercial refrigeration industry. Each week, I'm going to have top guests from technicians, To manufacturers, to experts around the world to really help us grow and learn together by sharing their knowledge in commercial refrigeration, commercial HVAC, and not only on the technical side, but really the professional and the personal development side as well.
• 0:02
  I'm really excited that you're here. Now let's get a conversation going.
• 0:03
  trevor: Welcome. So glad that you're here coming to hang out with us chatting me and Andrew Freeberg We hung out last week together down at the NSARC Natural Refrigerator event learned a ton of stuff just a ton of great sessions lots of great people there top technician top Manufacturers and today we're gonna be diving into becoming a better technician with electronic But first of all Andrew, why don't you introduce yourself for everyone?
• 0:04
  andrew: Hey everyone, uh, glad you guys are here. My name is Andrew Freeberg. Um, I work, uh, at RUI, just a supermarket refrigeration shop and, uh, been doing this for about 16 years and, uh, loving every minute of it. I'm just, it's just one of the best industries
• 0:05
  trevor: that we could be in. Totally agree. And, uh, there's so much always on the go, like we're doing tons of free sessions all the time, but we thought that we come and have a conversation about becoming a better technician with electronics.
• 0:06
  And the big thing is, is that get a better understanding of the electronics, what you're working with, because we know today. That there are tons and tons of different, uh, controllers out there, different electronic controllers, different electronic systems, and it's important to take the time to understand each of them.
• 0:07
  This doesn't happen overnight, but you can start to learn them over, um, over time. And the first thing is to do is to find out what controllers that you even have. In your area, uh, Andrew, do you kind of have an idea? Cause you do a lot of supermarket work. You do a lot of service on CO2 systems on supermarkets and some of the crushing all the time, but in your area, you have a lot of consistency.
• 0:08
  I'm sure you don't have all 50 or 60 different controllers that are out there for refrigeration systems. You have usually a few main ones, and then you'll maybe have the one off somewhere, somewhere else. What are some of the controllers you're seeing out there, Andrew?
• 0:09
  andrew: Yeah. The biggest, the biggest one is the Einstein two.
• 0:10
  And then the Dan Foss, um, can't, I don't know the model number, but, uh, and the Dan Foss and it could be either the, uh, buttons down below or the touchscreen. Um, I do come across the RMCC controller, uh, Yeah, the, the kind of older one there and then, um, micro thermal. So I kind of, I tap into a little bit of mixture of everything.
• 0:11
  So, um, my exposure to all electronics, it's kind of crazy. And
• 0:12
  trevor: the big thing is, is just like Andrew and me, it's, you don't learn these overnight and I hear lots of people, I'm no good with controllers. I'm not good at controllers. If you keep telling yourself that you're not going to be good with controllers, you're, you're right.
• 0:13
  When you tell yourself and keep telling yourself, that's what it's going to lead to, but if you say, okay I got all these different controllers, but I want to learn them. You're going to start to learn them and you can because the information is out there, but it's you that needs to spend the time on it.
• 0:14
  And you can't just do this during your work hours. We all would love to, but there's too much out there. Just like Andrew just said, uh, E2, um, uh, micro thermal, Danfoss, that's three controller platforms are very big. There's many more out there inside the world of supermarket refrigeration. And diving into them, like you need to get a good handle on which ones that you're going to work at on in your fleet, because some people, I know they work on Crell, Dan Foss, Novar, micro thermal need to, and this is difficult.
• 0:15
  This is, this is overwhelming when you have that many different control. And I'll show you a couple of screenshots of a few. So if you take a, take a look here for those that are watching, uh, we have a couple that you may recognize on there. And take a minute and take a look at them and see if you know some of these controllers.
• 0:16
  And if you want to throw it in the chat, for those that are on this free webinar, throw it in the chat to see if you know which ones you know on there. Because this is important. By looking at them will give you a better idea of what you're working with. Because I know I walked into systems before, looked at the controller, didn't have a clue what they were.
• 0:17
  You know, and this is, this is something that you need to understand. So we can see up in the top middle, there's a Dan Foss controller. We've got micro thermal, we get RDM, you got Corel, E3, Dixel. You got Worm as well. And they're from a German, uh, Germany. You may have never seen that before. But I thought I'd put that up there because depending on where you're at the world, you may see these, these different controllers and there's a lot more out there.
• 0:18
  I don't even have them all on here. But the thing is, is that you want to spend the time to get to understanding. And I think it starts with, for me is understanding the basics of refrigeration. What do you think about that, Andrew?
• 0:19
  andrew: Yeah. Um, going through these controls, the, really the thing is, is you're going to have to take the time and, um, And go through the controls either outside of work or in work, but if you could do more outside the hours and minutes you put in outside of work, it's just going to help you when you're on the job.
• 0:20
  For me, uh, when I first started out, I, there was just so much trying to learn. And then when I got into those controls, I really had to. Take some extra courses for me to really, really understand those. I could not just jump in and learn it and then go to the next one and I'm on a Danfoss controller or anything like that.
• 0:21
  Really, you have to take the time. And invest in yourself to do it because then when you go on those service calls, you're going to rock it.
• 0:22
  trevor: Yeah, I totally agree because I know I've walked up to stores before and then didn't even know how to log in. You know what I mean? Like your first time out there at the store is like, what, how do I even log into this controller?
• 0:23
  So step one is getting that basic understanding because this could happen to you. That log it, excuse me, that username and password, you may not know it and what I keep teaching more and more people is you should have, you should have your own user, uh, name and password. So you log anything you do on that controller, it's logged because it's so important to understand what you did.
• 0:24
  Uh, I really didn't like, uh, especially on the E2, just user and pass. You know what I mean? Anyone can go in and change anything, you don't know who's messing around with it. And I've, I've seen it many, many times where people would say, oh, that wasn't me. You know, I didn't change anything. But you wouldn't know.
• 0:25
  It doesn't matter if you, for me, it didn't matter if you changed something, if you made a mistake. That happens, this is refrigeration, we do make mistakes. It takes us a lot longer to figure out a problem if we don't know what's been changed. What are your thoughts on that, Andrew?
• 0:26
  andrew: Yeah, going in and messing with set points and, and losing your, what you're doing could really, really take a rack out if you do something major like that.
• 0:27
  So definitely take note on what you're doing. Um, a lot of the controllers now you're kind of, we're kind of getting locked out. So you can only do the basic stuff too. But there is still a ton of, uh, stuff that we can go out there and work on everything. We could change condenser set points and SSTs. I mean, it's, it is dangerous if you don't know what you're doing.
• 0:28
  trevor: And the big thing is on some of the newer controllers, everything is logged anyway. So even if you go and change something, use user pass, you can go back in, even in the E2, you can go into the master log and see what was changed at what time. And so you could go back and figure out who was there between those hours.
• 0:29
  It takes a technician a little bit to figure this out, but you can even do it on the E2. I know how to go into the deep logs. And so the E3 is super easy to do because the E3 a few weeks ago, I was at a site for a startup and we were going through a step by step and the experts from Copa were showing me that Here's the log, like anybody change, any change that's made is logged, the time is logged, there's a time stamp on it.
• 0:30
  So if you use username and pass, maybe at first they won't know who did that, but you can always correlate it back to the time. So it's better to just have your username and password in there so you are verified, uh, on what you're doing. And the same with MicroThermal. You can go into the deep back end of it and I can find out and look at what any, anything that has been changed.
• 0:31
  And I noticed that in the MicroThermal when I started using it about 15 years ago is that we, uh, I always had my own username and login versus with the E2 where it was just a username and password. One of the things that I, I really believed to be successful. With controllers and supermarket is understand the basis of refrigeration It doesn't matter the controller that's on that system because they all are doing the same thing The language is a little bit different, but they're all doing the same thing.
• 0:32
  And the first thing that I hear on the slide is they understand the basics of refrigeration. When you understand the basics of refrigeration, you can start to understand how a controller is manipulating a system, for example. Staging compressor. So the suction group of a system as compressor turned on and turns off, as the capacity starts to increase, we need then the load increase.
• 0:33
  We need more compressors to turn on, to take down that load, to try to maintain and satisfy all those walk in box and all those cases and understanding and just listening. to a system can help you understand how to look through that controller. What are your thoughts on, uh, on looking in, uh, looking in and out of controller when you're going to a service call,
• 0:34
  andrew: Andrew?
• 0:35
  I think it's a huge benefit if you're trying to diagnose a problem. If you go on that E2 and pull up a graph and see the trend, and all of a sudden that trend is different for a moment. Or maybe for a long time, then you could go back to that times. What, what happened here? I mean, to go through the, the graphs on any, on any of them is going to help you succeed and be successful in a service call.
• 0:36
  And it's going to jump you that much further ahead. Instead of 30 minutes, trying to figure out. Now you got, now, now you can whittle it down to 15 minutes or 5 minutes just getting on to the computer. So understanding what you're looking at could be a huge game changer in your service, uh, skills. But the one thing with the, the, on any electronic, it needs to read the correct information.
• 0:37
  So if you're on there and it says, let's say produce 38 degrees, uh, but you go down there and they're losing product or because, because it's too cold, but the sensor's reading 38 degrees. Well, then it's the computer is just doing what it's told, so it's very important those inputs on that board are exactly reading what it's supposed to be.
• 0:38
  So you have to verify
• 0:39
  trevor: that. I love that. I love that because I've been hearing and seeing more and more people trying to troubleshoot just from the controller. So they're up playing on the micro thermal, the E2, Dan Foth, and they're trying to fix the problem that is more of a mechanical or electrical issue.
• 0:40
  That you can't fix that way. You have to go out, take a temperature probe that reads accurately. So you get your temperature probe, you put it in ice water, make sure it reads 32 or zero, and then you go and verify that that temperature probe. I think that is key. And what you said there is that. Uh, if you don't verify it, you're going to get yourself into potentially more trouble.
• 0:41
  andrew: Yeah. The controllers is only as good as the information it's receiving. If it's not reading the good information, it's going to give you a bad output per se, or it's going to tell it to do something when it shouldn't be doing. You know, it's only as good as what is whenever the outputs are saying.
• 0:42
  trevor: And, and that's, this is something that I learned from the control experts.
• 0:43
  So when I was working. Um, at Copeland and going through all their E2 training, E3 training so many times and then going out to the field with, uh, manufacturers and the field startup reps and then talking with the control manufacturers. So if it was from micro thermal, if it was the control guy. And just a lot of people just rip it on the control manufacturer.
• 0:44
  Ah, Dan Foss is terrible or ah, Corral is terrible or ah, E2 it is, it doesn't matter because everyone has their own preference because they're used to using that. But at the end of the day, I hear the exact same thing as what you just said. Any controller expert, the controller information is only as good as the input information from where it's getting pressure transducers.
• 0:45
  Temperature probes, immunostats, whatever that information is really, that information on those graphs or on that, those sets are only that good.
• 0:46
  andrew: Hey, I want to take a minute to talk about the upcoming refrigeration mentor learning programs. Every couple of months, we continue to roll out live instructor led sessions by subject matter experts on compressors, supermarket refrigeration, and CO2 refrigeration.
• 0:47
  We're really here to help you grow. Get to that next level. Head to the Refrigeration Mentor webpage, refrigerationmentor. com. Check out the events page. There's a compressor masterclass, there's a supermarket refrigeration program, and there's a CO2 program. There's also free trainings, free workshops.
• 0:48
  Really, check them out. See if this interests you. Read a little bit about it because we're really here to help you. These live sessions are for you to come and ask questions, to learn a little bit, to grow. We've trained thousands of technicians from technicians from Three to four to five years in industry, all the way up from 20 to 30 years in industry, either get them to the next level or get them back on track.
• 0:49
  trevor: Another thing that I've noticed too, is improperly, uh, set up set points. And that's where it could cause a lot of issues. Have you ever noticed that where the temperature set may be too low, maybe defrost termination set too high, or maybe, uh, they're, they're the dead bands too close. Have you ever came across any of that before, Andrew?
• 0:50
  andrew: Uh, yeah, when, uh, out of a defrost, it's taken too high, or it's set for a temperature too high, and defrost was, it's a hot gas defrost, and it actually would cause the other cases to get warm too, because as hot gas goes through, uh, a coil, and the coil's cold, it has ice on it, we actually condense back into a liquid, and then as we go through, so the pipe coming back, I guess, is going to be all liquid, feeding the other, and uh, The other line.
• 0:51
  Well after time, that ice melts, now we still got that discharge temperature going in, uh, and it's still a vapor. And then that vapor is still a vapor by the time it gets out. So now, when it goes back to the liquid header, we're feeding vapor throughout the entire cases. And that's going to cause that. So in that example, because it was set too high, that means it's the saying that, Hey, there's still ice on the coil and we're going to keep going in defrost, which is actually hurting the rest of the cases and system because of them.
• 0:52
  The next
• 0:53
  trevor: tip that we have on there is knowing where to find a manual. And this is, there's no excuse today, not being able to find a manual and read through the manual. Um, Microthermal, E2, Danfog, Corel, RDM, the list goes on on the manuals and how easy it is to find them today. I know I had someone reach out and said, uh, can you help me out with a multiplex board and how it works?
• 0:54
  Honestly. And then I asked, do you check the manual? Oh, I didn't know there was a manual. I didn't, couldn't find a manual. Well, did you look? Because it doesn't take too hard to find. There's a whole like 70 or 100 page manual on the, the multi flights board for the CPC or the Copeland controllers. And the same thing with Microtherm.
• 0:55
  You asked me, oh, I need to, you know, so I don't really know how the 700 series works. There is dozens of manuals in the, uh, micro thermal, uh, literature that you can just go and read. It doesn't take too long. I was actually in there reading today, um, uh, some information on it, and it only takes a few minutes.
• 0:56
  And if you spend a few minutes of your time each day, Diving into these, understanding how to, say, change a bore point. If a bore point burns out, what do you do? How do you do that? All of a sudden, your pressure transducer is not reading anymore. So, one of the tests would be put it on a different point.
• 0:57
  Have you ever had to do that before, Andrew? Change, uh, change bore points or relay points because they, uh, failed?
• 0:58
  andrew: Yes. Um, unfortunately it does happen. Uh, and it could be a real pain, especially if you don't know how to do it. So that that's really one of the basics, uh, things you should probably learn as how to change a board point, because that could be, uh, a quick, you know, our call turned into seven, eight hour calls.
• 0:59
  Cause now you're trying to pull up the manual, trying to figure out how to change that set point when it's one of the ones that you should already know. Or at least. Get into a, um, manual and know where to find it in the manual. You should at least know that. Because that's, um, it, it does happen and it will save
• 1:00
  trevor: you.
• 1:01
  It'll save you hours. Our good friend Noah Walker saying manuals are your best friend. 100 percent Noah. This is exactly what you need to do because you can't always remember everything. But they all work the same. It doesn't matter what anyone says, all the controllers are doing the same things. They're taking some inputs, shooting out some outputs, switching some relays, opening and closing things.
• 1:02
  And that's exactly what they all do. The same thing. They just have a little bit of different language. Some have more features than the others. The more money you pay, maybe you get extra features and licenses. So, but this is the things that you need to know, get into those manuals. I think I got another here.
• 1:03
  to be successful on controllers, understanding basic controller navigation. What are your thoughts of that?
• 1:04
  andrew: Yeah. Understanding the basics of how to navigate your controller is going to save you too. It's, it's hard because all of them does it different. Um, so it's doing it over and over again. It's going to work.
• 1:05
  So if you're on a job working on even a self contained or whatever, and you get the self contained working, go up to the machine room, take 15 minutes. It's going to help you and don't change anything. Just scroll through it and try to find, you know, set points and, and try to find different, uh, cases out there just to dive a little deeper into it.
• 1:06
  Cause that might help you in the next service call.
• 1:07
  trevor: Yeah. And we have such good technology today. I'm going to give you all a tip right now. And if you take this tip and you use it and you implement it over the next two or three different controllers you work on, it's going to be a game changer for you.
• 1:08
  And what is this tip? Guess what you have in your hand, you carry around with you all the time. You have a cell phone. Okay. You have a cell phone. So you go up to a controller. You take a picture of it, or you can set up your controller and record it. Press a button. Log in. Okay, go to the first menu. Look at every scroll down so you can read everything.
• 1:09
  Take a picture and record it. Go to the next one. Do the same thing. Take a picture of it. Anything you don't know, you have it in a picture and record it, and then you circle it. I don't know what this means. I don't know what this, this differential means. And go through it. Go to the suction group. Go to the condenser groups.
• 1:10
  Go find all that stuff. Go to the Hukas bypass valve. Whatever it is, three way valve. You can go in and look at all this different stuff. Get into the trend graphs. And then you have all this data on your phone. And then afterwards When you're not at work, take a look at it. Oh, I was going through this, I took these pictures of all the, the condenser grouping or the advanced suction group.
• 1:11
  Whatever it is. And you go through each one and just learn it. And then when you don't know something, that's when you throw a question up on Facebook. Into the supermarket group. Or you ask somebody at your company. What does this really mean? I don't really understand what that means. Ask the question. Or you can just go and do a research, a Google search in the manual.
• 1:12
  That will totally help. We have the technology to help you grow a lot quicker. Um, and I, I really think you can do that. So if you don't understand it, take a quick snapshot. You'd take a bunch of trend graphs, take a snapshot. Are these the ones that I should be looking at when I'm looking for issues with an evaporator?
• 1:13
  And it could be your pressure transducer, your temperature probe, your EEV percentage opening. There's lots of different things, but I think that is important to do. What are your thoughts of using technology to help grow your, uh, controller knowledge, Andrew?
• 1:14
  andrew: It makes service calls, could be making service calls a breeze.
• 1:15
  Uh, because you could really go in and figure out if your case, uh, superheat is wrong just by a grasp. You pull up and you look at it and you got a couple degrees off on one case. Let's say you go in and you graph it out, and you can see the trend is normal, but all of a sudden, it gets a little longer. It takes a little longer to pull down that case, and then a little longer it takes down.
• 1:16
  So, you'll see, and what could that be? Probably the filter in the TXV is starting to plug up, and it's causing it to take longer and longer and longer to pull down that case. So, and that, is the TXV. Did I, I didn't even have to bust out any tools to check superheat, throw it in, defrost or nothing. I already have a set plan where I need to go just by looking at it.
• 1:17
  Also going back to the manuals, if you guys do print them out and keep it at the store. Because if it's, I'm sure there's also more technicians that will, you know, need it. Um, because I, any manual that I get, I always put it in an envelope or something that's inside the machine room. So someone could grab that manual and pull it out, whatever it may be.
• 1:18
  trevor: And lots of people are like, Oh, people will steal them or they take them. There's never a law, but nobody takes paper anymore. Nobody wants to take the manual. They got it on their phone anyway. Just leave that right. Do not take, use your phone. My good friend, Jonathan here, put in, put the manuals in a Google drive.
• 1:19
  So that's what you could do. Leave the manuals there, have a Google drive for your company, and they can just go in and all the manuals are there for that store. Easy little things that can do. I got another one here for it to be successful. How to override properly. What are your thoughts on over, uh, using override, Andrew?
• 1:20
  andrew: Uh, be very cautious, uh, because if you turn something on that shouldn't be on, we'll force it on. You could have, you could cause more damage, uh, to the system, uh, or forcing it off, you could cause more damage too, depending on the application. If it's a three way valve per se. And you valve it, uh, on, well then that's, it's only using one side of the condenser.
• 1:21
  Uh, so now you're tripping out on a high head and hopefully you got your, your mechanical safeties to trip. So it's very, very important to know what you're doing before you do it. So proceed with caution, I would say, but sometimes it's so necessary to save you.
• 1:22
  trevor: And that's why I put it in there properly.
• 1:23
  Because it's so important to understand it because I've done it multiple times, you know, put something into a manual defrost to help out before going to defrost the case and get it, trying to get it started. But if you put it in override and you leave it in override, and then you forget to take it out of override, and then you leave the store and they go and load the case that they'll be calling you back because there's like the case is not pulling down what, what is going on here.
• 1:24
  Right. So here's another one from John. Set it up on a timer if you need it temporarily. Don't want to forget to turn it off 100%. But another one is, is that if you ever, just say for an example, you turn on liquid injection, override liquid injection, and you leave that on, now you're just feeding the compressor a bunch of liquid the whole time, and then you're going to smash it out.
• 1:25
  So that's why Andrew says, uh, proceed with caution. Last one is, and you already talked about it, to be successful, I think it's, I think the biggest and the number one is reading trend graphs. If you can read trend graphs properly, you can troubleshoot a system from anywhere, as long as it has the, the proper data to read.
• 1:26
  And now with CO2 systems, we know there's temperature and pressure probes everywhere. What are a couple of tips for reading trend graphs, Andrew?
• 1:27
  andrew: My biggest tip is understanding what is good. So you got we get called out all the time because there's an issue. We got product that's going to despoil or whatever.
• 1:28
  So we're always looking at bad stuff. But do you know what good stuff is? You know what a good trend looks like? So my My biggest thing is take the time and understand what a good trend looks like. As soon as you know what you're supposed to have, you can go to any controller, look up the, the, the graph and like, man, there's something weird right here.
• 1:29
  It shouldn't take me this long to defrost or, or it shouldn't take me this long to pull down a case. You know, so knowing what is good is going to help you. Really succeed
• 1:30
  trevor: there. And this is the example we got on the screen for those that are watching right now is a trend graph for a CO2 system. So depending on what you want to really look at will depend on what you want up there.
• 1:31
  This one here is for the high pressure valve, so we got the outside air temperature, we got the discharge temperature, we got the outlet drop leg temperature, we got the fan, it's the fan running. So this here is all for the gas cooler. And so we take, you take a look at that and you see, you can see how it's kind of hunting.
• 1:32
  You're going from 900 PSI in the gas cooler discharge down to 600, up to 1000, down to 700. So it's been going like that for days and days and weeks. System's still running, you're maintaining temperature, but you're not running it, uh, efficiently and you start, can run, start running the issues. And you can see the technicians went in there and fine tuned it.
• 1:33
  This is something that you can do and you can read from friend graphs. They fine tune it, changed a few set points to test it out. And then now you can see how they're, they're like a straight line. They're running at that six, 700 PSI. So these are the things that you need to take the time off. Does this stuff happen overnight?
• 1:34
  No. But there's all these controllers I got on the YouTube channel at the Refrigeration Mentor YouTube channel. We got how to read Corel Trend graphs how to read RDM trend graphs how to read e3 trend graphs even Microthermal trend graphs just like this one So take the time to learn But it does you have to put the work in and I see it time and time again We're not spending enough time outside of work hours to, to get this knowledge into the ones that you that are here tonight, putting the work in.
• 1:35
  At 9 o'clock Eastern and at night, 5, 5 Pacific, coming to learn a little bit, you're putting the work in. But this is what you gotta talk about with the apprentices coming up. This is what you gotta talk about with the guys that have been doing it for 15 years and think they don't need to learn anymore.
• 1:36
  You gotta put the work in, just like Andrew's doing, just like I'm doing, and just like you guys are doing. But it does take time, and there's always people out there that want to help you. Just remember that. There may be people at your company that don't want to help you. But there are manufacturers that want to help you inside those organizations.
• 1:37
  I know, because I talked to a lot of them. There are lots of them in those organizations that don't want to help. Those are the people you're not looking for, but you know what? If you be curious and you come up with great questions for these control manufacturers, you're They want to learn it too because sometimes they don't have all the answers either some of the the people that are Are supporting the controllers?
• 1:38
  They might only been doing it for a couple years Just like some of you might be only doing supermarket refrigeration for a couple years And so what do you need to have is a little bit of patience, be a little curious and take some time to read these trend graphs, because you can make graphs look just like this one if you spend some time on it.
• 1:39
  andrew: Spending your own time learning this stuff is really going to excel your career. And I can't, I tell everybody that I work with on my apprentices, 15 minutes a day. Give me 15 extra minutes studying something that you don't know. One thing, one thing a day, one thing a week, you'll know that much more in a year.
• 1:40
  That extra amount of time that you put in yourself, you're going to be that much better. I can guarantee it. Now this is, you know,
• 1:41
  trevor: this is just the start of it. I'm really, I really appreciate you taking the time to come and watch tonight. I do have a full on supermarket course for those who haven't taken it because I see quite a few people who have taken my supermarket course.
• 1:42
  Like if you want to make a difference, um, in what you do is you got to get into these programs and learn a little bit more. Sometimes it's outside of work, sometimes it's during work, sometimes it's taking that extra step to grow your knowledge because you got to put the work in. You put the work in now It's going to pay off later, just like Andrew has been putting the work in for years and years.
• 1:43
  Uh, and he was a trainer at a technical college and he went back into the field and he's crushing it out there. Because he put the work in those extra hours. And I know you can as well. Spend the time. To to invest in yourself because it's only going to make you better I'm going to throw this in the in the chat if anybody wants to send it to Uh anybody and their team to their service manager because this is what we do.
• 1:44
  We build content Uh for contractors and technicians and we'll take any questions uh from anyone because we are one minute over right now for those who are here live on this session and Anyone who is listening on the podcast put some comments in the show notes Put some comments. This is how we get better.
• 1:45
  This is how we learn. This is how Andrew wants to keep coming back and share his extensive knowledge with you.
• 1:46
  andrew: Yeah, one, one thing I would say about, um, just learning controls is it, it really is going to be, You're going to need to take the time. It doesn't happen overnight. Trust me. I wish it did. Um, I wish I had that capability, but I do not.
• 1:47
  And each one is it's, uh, it's its own identity. So it's all, it's not all different. The basics are still there, but how I'm going through it and understanding how it works. Is, uh, it just takes time. And that's why I say when you're on the job, um, and everything's working fine, that's when you want to go up there and kind of go through it all because then you know what it's supposed to be doing.
• 1:48
  I'm a big, huge fan of knowing what it should be doing. And then knowing, then when you arrive on site and it's not doing what it's supposed to do, like, okay, man, that's where I'm going. That's, it's not turning on. Why? It should be turning on. Defrost, you know, but knowing the order of operation and understanding it and knowing what, when it's running right, is going to make you really just help you out there in the field running service calls.
• 1:49
  trevor: Yeah, I totally agree because temperature probes on all of them are all the same. You know, there may be a different variation, different reaction times, but a 10k sensor, 10k1, 2 or 3 might have different reaction times, but they're all 10k at a certain temperature. So you got to get that resistance chart.
• 1:50
  Pressure transducers, they do all the same thing. They're reading a pressure on a resistance or on a, uh, milliamp scale, whatever the scales are. You just got to go in and understand where's that curve of that and check that out. These, these things are easy to find online. Just go into the manufacturer and look up pressure transducer.
• 1:51
  Or, you know, PT 1000 for Danfoss or NTC for, uh, Emerson, I will say, or sorry, Copeland. All this thing is learnable. And just like Andrew learned all this stuff, I learned this stuff. It's learnable. Spend the time, grow your knowledge. I want to thank you for taking the time. Andrew, any final thoughts?
• 1:52
  andrew: Other than what I already said though, I mean, really just that 15 minutes a day, one, one piece of a component out there that you don't.
• 1:53
  Take a picture of it. Next time you, you get home, spend that extra 15 minutes out in your van or whatever you need to do, but that is really going to help you out there. And I can't not stress that enough.
• 1:54
  trevor: Love it. Uh, Andrew, thank you so much for taking the time to do this. Thank all of you for taking the time to come and listen.
• 1:55
  Once again, please share this with people who want to learn and grow their knowledge. And we'll see you at the next, uh, Refrigeration Mentor, uh, training. Thanks, Andrew. Man, that was fun. I love
• 1:56
  andrew: doing this stuff, man. Way too much fun. I want to thank you so much for hanging out with me and the Refrigeration Mentor podcast.
• 1:57
  If you enjoyed this episode, please leave a comment. Let me know what were your key highlights. What you took away from myself or my guests, as well as if you have not subscribed yet, head over to Apple podcasts or Spotify and subscribe. And if you enjoyed this episode, please share it with a friend. Let your friends know that there are people who care, who want to share the refrigeration information to help them get to the next level in their career.
• 1:58
  If you have not been to the refrigeration mentor website at refrigeration, mentor. com, go check it out. There's a ton more guest podcasts I've been on as well as the event page. Check out the events page because there's a lot more free trainings as well as paid training to really help you grow your knowledge base.
• 1:59
  Super excited. Can't wait to see it. The next refrigeration mentor podcasts. Let's get a conversation going.