HVACR Videos Q and A livestream originally aired 05/18/20 @ 5:PM (west coast time) where we will discuss my most recent uploads and answer questions from the Chat, YouTube comments, and email’s.
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Ah, it's time to chill out and get ready for a mediocre. Qa live stream if you're old enough grab yourself your favorite adult beverage and if you're not stick with apple juice, put your feet up and relax. If you have any questions, feel free to ask them in the chat and now, let's queue up the intro music yo. How are you guys doing this evening? Hopefully, you're doing well as usual.

Things are a little shaky this today, like kind of threw me off right now, and you know what it is I know exactly. What it is is that I am drinking water tonight because I need to remember the show - and I got to get back into this like I have this groove going and something was changed today and it's like oh yeah. That's why everything's kind of screwy right now but anyways, it's all good. I will get the hang of it one of these days.

You know it's only been like what year-and-a-half or something like that since I started doing these live streams, so you know one of these days, I'll probably get it maybe two years or something like that. I don't know but anyways. Let's start this off right: okay, intro myself, my name is Chris. I make these videos on YouTube and I'm doing this just because there's so many new people in here.

Okay, I make these videos on YouTube just to share the little bit of knowledge that I have. Okay, I have some questions that I usually like to answer in these streams I like to go over those questions. People email me, YouTube comments, Facebook comments all that different stuff and then just the standard YouTube chat. Questions too.

I usually like to cover the two videos that I most recently did and then I just kind of you know answer questions from the live chat. Okay, one of the questions is gon na segue into this whole introduction thing right now is someone had asked me how long I've been in the trade. I have not been in the trade that long, okay, I did kind of grow up in the trade. I officially started working in April of 2002, so I think that makes it about 18 years if my math is correct, but my mouth is known to be completely wrong: half the time.

So someone can correct me if I said that wrong. I did grow up in the trade, though I started working for my father gosh when I was really young, okay working holding his flashlight sitting on his tool bucket. I learned a lot from my dad. Okay, I learned good things, bad things.

You know he was an old school service technician and there was definitely a lot that came from that. Okay, it made me the person that I am today not saying he was a bad person at all. Things were different in the past okay. Nowadays, our equipment is not as forgiving and we have a lot tighter of tolerances when it comes to operation of our equipment, so got to make sure things are, do you know working correctly, so you know but yeah so been in the trade for approximately 18 years And I just make these videos just to share the little bit of knowledge that I have okay, the last two videos that I released were on the first one was a: let's see what do I have? I have it written right here.
Both ice machines are down. So it was two ice machines that were down okay and then the second one that was released was the produce, walk and was too warm guys in the chat. I'll look at the chat here in just a minute I like to get through my spiel and then I'll start answering what's going on in there. Okay, I'm gon na cover a couple, quick questions with those two videos once we get through that, then we'll just kind of do a little bit more of the stuff I have in here and I'll dress the chat and do all that.

So one of the biggest questions I get is about manuals. Okay, people are always asking me: where do I get the ice machine manuals? I have a couple different manuals here, guys when I take training classes. This is the man. This is one of the man talk books, there's some more sitting up there in the back corner.

Here's a full at ice machine book. You can see. I didn't i've. Only it's been a long time step into a full at seminar.

2016-2017. I think i did one in 2018. You know this right. Here is a thermo Fisher, scientific medical lab freezer book.

The point that I'm trying to make is when I let me try to address that, I don't know why the volumes low hold on just one. Second, let's see um, that's interesting. Let me move this cursor up a little bit see seriously. I've been having the weirdest volume issues lately.

Let me know how that is guys. I kind of had turned it up just a little bit. So tell me how that would make see that sounds really loud in my ear. So let me know in the chat guys if I'm clipping - okay, I don't think I'm clipping on my monitor, but sometimes you guys tell me something different so but anyways when it comes to the manuals.

Whenever I go to a training class, I never throw anything away. Okay, I save every single manual out there and we'll see now I'm seeing someone saying the volume is fine because I just turned it up. So hopefully it's not too loud, but okay, but I save every single manual that I come across guys. I don't get rid of manuals.

Okay, when I go to training classes, I ask for extra manual, so I can hand them out to my service technicians, but when it comes with when it comes to you know, where do I get the new manuals? All you have to do. If you don't go to a training class, you can simply go to every manufacturers website, whether it be a Lennox air conditioning package unit, whether it be a Lennox residential air handler, whether you know heat pump whatever go to their websites. Okay, all the manufacturers publish all this information. So when it comes to an ice machine book, go to Manitowoc ice comm, you can download all their manuals.

Okay, if you want to purchase manuals, you need to reach out to your dealers, okay, so Manitowoc ice machines. For me, I use western Pacific distributors here in Cerritos, California, that's who distributes Manitowoc ice machines. So if I wanted to get a book from them, I'd go to them and say hey. I want this service book oftentimes.
They used to give them away for free, but I don't care I'll pay for a book. I could care less okay, so you just got to do the research. You can find all that information and I try not to ever get rid of those books. Okay, information is key when it comes to this stuff.

The other thing you guys can do when it comes to working on any piece of equipment out. There is just ask the Google okay take a picture of a model and serial number type it up on your phone. There's a lot of equipment out there that has apps and different things like that, like Lennox, has an app for their commercial equipment, even the residential equipment, and you can download any other manuals on that app. Okay, you just got to type some things in Google search bar and you could find so much information at your guyses fingertips.

Okay, we have the resources available to us. The another question that I had on the ice machine, video that I was talking about both ice machines down was - I had a compressor bad on that one okay, but I ended up replacing the compressor and Scott one of my buddies had asked me: hey. Did you end up changing the t1 and/or, the t3 and t4 sensors, and no, I actually for got to change those sensors, but a really important thing to understand when it comes to manitoc ice machines? Is the thermistors or the sensors, especially the t3, and the t4 sensor are the most common to go bad? They do not affect the machines operation. If you have a bad sensor, it just gives the Machine bad information, but it doesn't do anything with that information other than raising an error code.

Okay, the machine will not shut down because of a temperature sensor when the machines first came out with the Indigo machines when they first came out. Yes, they would shut down on an issue, but they quickly updated that because they realized that the temperature sensor failure rate was so high that they needed to make that disappear. So they did okay, so but yeah next time I go there I'll take care of that. Adam Neil, thank you very much for becoming a channel supported.

That is awesome. Okay, let me see now the next video that I had was a produce walkin. That was too warm. That was a walk in.

That was actually the one I just released yesterday, yeah yesterday morning before I went out with my family but yeah that data video. Some of the questions that I had one of the you know common questions I actually get quite often is because it was a high ambient temperature. Someone from Australia had asked me a question asking me: hey how come we don't use misting devices on our condensers? Okay, because that particular condensing unit here and that that video was filmed a week ago, I think so we're just in the beginning of May, and it was over a hundred degrees there. Okay, so imagine once we hit full swing in August of summer, it's gon na get really hot, probably about 115 to 120 degrees there that so, why don't? We use misting devices.
Okay, misting devices are extremely hard on condensers, okay, because of the mineral deposits left behind. Okay, we have very low humidity here in Southern California, so that water's gon na almost instantly evaporate and when it evaporates it's not going to take the minerals with it. The minerals are going to be left behind as calcium deposits, they're gon na get on the condenser they're gon na destroy the condenser. So whenever possible we try not to use misting devices now in some crazy summers.

I think I have a few videos from a few years back where we had a crazy heatwave. That was the only thing that could my equipment operating, because in that area that I filmed that video in was the desert okay, so they get extreme highs. But in my area I live more inland in my area we had 120 degrees at my house. I think it was a year and a half ago and that week that we had 120 degrees.

I must have done so. Many service calls where I was having to go reset pressure controls, replace pressure controls because it was just so hot in the way that we got through the summer was by adding misting devices to the equipment. Okay, Zach. Thank you very much for becoming a channel supporter.

That's really awesome those of you that have done that. That's awesome! I don't expect it. I'm gon na address that right. Now too, I acknowledge my supporters.

I probably don't acknowledge my channel supporters enough there's several of you guys that have chosen to donate to my channel via patreon YouTube, memberships, PayPal, all that different stuff, and I apologize I'm not a very good host when it comes to that stuff. I am very grateful for the channel support that you guys give. That is amazing. Okay, it is not expected whatsoever, though alright and I try to address it but um.

I really do appreciate it, but guys. I know we're going through crazy times right now. Okay and you're, not gon na hurt my feelings. If you recall your channel support, if you recall you know, if you don't make super chats, it's no big deal.

Okay, if you guys want to support the channel, there's other methods to do so too, something as simple as just watching my youtube videos - and I know this is the hardest thing in the world, but watch through the commercials guys. I know it sucks. Okay, in some of my older videos, I used to listen to what YouTube said and I used to let them put the commercials in there. I don't do that anymore.

Okay, I only put one commercial in all my videos. As of this point, okay, every once in a while, I think I might put two but for the most part of keep it to one commercial in the video. So if you can just simply watch that one commercial, you guys could support the channel and let YouTube pay me. Okay, that helps to support there's another method.
If you guys are interested in purchasing tools, okay and you happen to choose true tech tools as your website to purchase tools, you can use my offer code, big picture, one word, okay, big picture, and that helps to support me too. You get eight percent off of your order. I get a small commission from it there you go, you guys don't have to donate any of your personal money and you get a tool that maybe you were thinking about. Okay, but again I brought that up because I wanted to acknowledge.

I don't want to make people think that I'm trying to draw that in. I really do appreciate the support, but it's not needed if you can't do it. Okay, so I'm gon na get off that topic and get back to my videos, get back to my things that I'm rambling on about okay. So as far as the produce walking to warm you know, I had several leaks on the evaporator core and I showed them in the video.

There was a bunch of different micro leaks and I got a couple questions. You know you could just braise that up and I even addressed it in the video. Yes, I could have tried to braise up all those different refrigerant leaks. Okay, the problem, though, is when you have that many refrigerant leaks, as many as I did, and you try to braise on those that can be very difficult and it can just turn into Pandora's box.

Okay, when you have that many leaks, that means that the copper is disintegrating from the inside or you know it's it's very thin and something in the air is attacking the copper and if you get in there with the torch, I'm sure I could braise some of The leaks, but I might create other leaks, because if the coppers weak there, it's probably weak everywhere else throughout the coil and as you start to heat it up and the copper expands, you can start creating other leaks and it just becomes Pandora's Box. So you have to know when it's best to recommend to the customer: hey, it's probably not a good idea to fix any more of these. You know and go from there give them the whole big picture idea right again, almost done with this and then I'll get to the chat. Another question because I had mentioned Marcus.

Thank you very much. I did see your email Marcus. I will try to address that. Okay, thank you very much for that super chat though, but that's awesome.

I think Marcus though I'm trying to remember with your email. I think you sent me an email and with your email, Marcus. I think that I needed to. I don't know if I'm gon na cover it in the stream I'm trying to remember.

I think I need to address it outside of the stream, but if, if I don't answer it, don't hesitate to email me again, okay, so in restaurant refrigeration, I work with a lot of chain. Restaurants doing so the customer provides their own equipment. Okay, I get a lot of feedback from people saying. Why would you do that? Why would you let a customer provide their own equipment, it's totally different than like a residential situation? Okay, and if it's a small restaurant I wouldn't do but big chain, restaurants, that's just how it works.
Anybody that does chain restaurant work knows that for the most part they provide their own equipment. Now I don't go for them providing their own parts. No! That's where I draw the line, but when it comes to equipment replacements, if you want to work with some of the big boys, you just got to accept that one okay, so they buy their own air conditioning equipment, around ice machines and their own refrigerators. I just install them for the most part, okay, one of the cool things and I'm not bragging at all, because even right now, I'm still slow.

But for the most part you know. Like the last recession, we stayed pretty busy because we were doing chain restaurant work. So, for the most part, they have capital to float them through these crazy times. Now.

This time is a little bit more extreme, where these restaurants are really cutting back, because this is the worst we've ever seen - kind of a economy crash. You know, but anyways going off on a tangent again last question that I wanted to address on my recent video is: why did I not use a temporary epoxy to seal up the leaks on that evaporator coil in the in term until we get it replaced? I personally am NOT a fan of using epoxies to me to be honest with you, it's kind of a waste of my time now. If a customer came to me and said I want you to use this, then sure I would consider doing what they said in and but I would just inform them really. I think it's kind of a waste of time now, I'm not judging anybody for using an epoxy or anything like that, but I'm just not gon na try to sell them.

Something like that. I just rather change the equipment, if that's what they choose to do and or repair it okay, so I'm not a fan of like the epoxy's or leak sealants or anything like that. So that's the two videos that I released this last week. The both ice machines are down video and the produce walking to warm.

I'm gon na take a look at the chat, real, quick and then we'll get back to my list of stuff to talk about. Okay, thanks again for becoming a channel supporter, Jesse, petty, that's awesome, but let me see what else. Let me see what I'm missing here. Oh well, the movie quote already popped up into yeah.

It is, this is spinal. Tap. Is the movie that's a funny one too. Just the the stupidity yeah, that movie is just awesome.

It's if you haven't seen this a spinal tap, don't sit down and watch it with your family. Just sit down when you're bored. You got nothing else to do it's going to be the down this movie. You've ever seen, but it just has some of the funniest scenes in it.
It's just it's it's funny so check it out. This is spinal tap, very good movie. You got just put some dialogue over the hole there. You go, let's see by pulling a deep vacuum.

Does the oil boil and can it damage the oil pulling a deep vacuum? Now I think in again I'm not a genius when it comes to evacuations. Okay, if you want to know more about evacuations, I highly suggest you look up Jim Bergman, just google search Jim Bergman, evacuation and you'll find all kinds of videos on YouTube. He does videos for measure quake. He does videos for a key tools for a field piece.

It were taught uses field, piece, vacuum pumps and different things like that. He would be probably the the easiest person to find information about evacuations, okay, but as far as pulling a deep vacuum, what you can pull out in the field, you're not going to hurt the vacuum pump oil. Now! Yes, I would imagine if you were in a laboratory and you had scientific equipment under laboratory conditions, I'm sure you could start to vaporize the oil - I'm not 100 % on that, but out in the field. You're not gon na vaporize the oil you're not going to damage the oil by pulling too deep of a vacuum; okay, so hopefully that kind of answers your question Adam.

Thank you very much man. I really appreciate that. That's funny, I'm gon na address that thanks for that super chat, Adam so Adam saw me on the overtime show. So, yes, I'm just gon na join the guys.

Whenever I can, when I'm available, it's nothing crazy. Okay, just you know we're permitting. I plan on. You know trying to make it to the hvac overtime show on Friday nights whenever possible, something I wanted to bring up so someone in the beginning of the stream, if you guys are just tuning in and also in the beginning of this, I said you know someone Made a comment about me: pouring my apple juice now he's joke around, because I usually have a couple beers when I'm doing these live streams and I'm trying to tone it down a little bit because I don't remember half of the last live stream that I did.

Last week and then also the overtime show yeah, I was drinking quite a bit on the overtime show and I want to tone it down just a tad bit, because it's funny, I was getting ready for this live stream tonight, and I was trying to remember, like I couldn't remember the last live stream and I had to go back and re-watch it and yeah. It's like a lot. I don't remember talking about that so yeah. I need to be cautious about that.

So I'm toning it down a little bit but yeah you guys will see me on the overtime show so HVAC kid. When you're 16, can you work for free at an HVAC, our company in California? No in California? Legally, nobody can work for free. It's it's! A legal nightmare, you can't even do right like it's just a disaster, you cannot work for free in California, especially at 16. You've got to get well.
No. You know I take that back. There's some there's some ways. You can do it if you apply through a college and when I say you can't work for free, it's it's insurance reasons and different things like that in workers, comp insurance and stuff.

But the way you can skate that if you want to get experience with an HVAC company here in California, the only way that I know of doing so is by going through a local community college. If you're enrolled in a community colleges HVAC program oftentimes, they will have sort of an apprenticeship program set up and they float the insurance. So they have the insurance that covers you. You can go work with a contractor where they can get a feel for you.

You can get a feel for what it's like and technically you're, like a student on a ride-along with an HVAC company, it's a bunch of legal red tape, and that is one way that you can possibly go. Do ride-alongs with someone as long as you're enrolled in a community college and you're under their insurance, because you're not gon na, find an HVAC company out there. That's willing to have the insurance to to do that. It's a nightmare! Okay and then there's labor laws and all kinds of stuff Zach.

Did I manage to price a t-shirt to the UK or yeah Zach? Okay. So me, let me cover that real quick. I did make an announcement on social media that, and I've said I've gone back and forth on whether or not I wanted to do this or not, but I decided to go full bore into it. Okay, I did I'm going through the process right now of getting all the legal crap that I need to have to be able to sell shirts legit okay, so I'm gon na have shirts and hats.

I placed a huh, that's not good! It says I'm getting a buffering, hopefully I'm not buffering YouTube's messing around right. Now, I'm getting an error message. Hopefully it clears up. I'm just gon na keep talking through this, but I did get a.

I placed a giant order for shirts for me giant order. I think I ordered like 250 shirts or 280 shirts, or something like that. I think yeah, something like that and then, like 40 hats or something I will be setting up a website, I will be selling them legit. I haven't figured out pricing and stuff yet, but I did order two shirts, I'm you know in the process of getting the business license and all that stuff, so that's coming through soon, so yeah.

California is crazy when it comes to regulations. Now, as far as the UK, that's gon na be a little bit difficult, we'll have to figure something out: shipping stuff overseas. I don't know how I can legally do that, but maybe we can figure something out on the backside of that one. So, okay, that's cool! No buffering, that's kawaii.

It just says on my side that it's gon na buffer, but yeah - oh well, alright! So if I missed questions guys, throw them in caps, lock I'll get to them again, okay, right on, then we got a lot of people in the stream. Hello to everybody, if you're new in here, hey thanks for coming. Okay, I've got a list of things. If you guys have questions, please put them in capslock I'll, try to get to them.
Okay, what causes a soft plug to blow on an accumulator? If, if you had a soft plug that blew on an accumulator, that's bad, that means that your system, temperature in the soft plug that or you just had a bad soft plug. Are you mean in a receiver and accumulator? That's very interesting. I've never heard of a soft plug blowing in an accumulator, but a soft plug is usually a temperature safety device built into a storage vessel that has a low temperature melting point, usually on most systems around 430 degrees and if the temperature within the system gets above 430 degrees, then it melts the solder. That's on there and it'll allow the refrigerant to vent before you have a catastrophic explosion.

Okay, so you can either have just a weak soft plug, maybe wear or someone overheated it from the outside or something. I guess that's a possibility, but I've never heard of a soft plug blowing on a receiver, definitely heard of him. I mean on an accumulator. Let me see what else thoughts about project management.

Don't know what you mean about that. Send me an email to HVAC our videos milcom, we can talk about it a little bit more. Let's see what else we got. You noticed in my last video that I was charging with liquid into the suction line.

Wouldn't that hurt the compressor, I'm metering liquid into the suction line. So typically, when I'm charging a system and when it comes to air conditioning or refrigeration systems on your initial charge after an evacuation, you put liquid refrigerant in through the high side. Okay and you let the system stabilize out then once it won't, take any more refrigerant or you've put a certain amount in then you take your hose off, you put it on the suction side. You turn the system on and then you meter it in slowly through a ball valve, okay, whether it be through your manifold gauge or your smart probe hose or whatever you meter, the refrigerant in so no I'm not charging with liquid into the suction side.

I may have the tank inverted because you have to charge liquid coming out of a refrigerant tank when you have a blend okay, but I'm not blasting that compressor with liquid refrigerant. No all right, let's see what else parts town has a lot of manuals as well. Yes, they do Willie Bryant, and that is a great resource. Okay, if you guys don't know what parts town is parts town is a started out as a restaurant refrigeration part source right, they think they're out of Ohio.

If I remember right, anyways, they giant they're, a giant company now they've merged with so many different companies. I think they're, the biggest parts distributor in the country - maybe even in the world - I don't know they're huge but yeah, one of their selling points similar to other companies. Is they made an app that had all sorts of manuals that started with their website? They now sell some air-conditioning parts, they sell hot side parts ovens fryers all that stuff. They basically sell all kinds of parts on their website, but they have tons and tons of manuals so check out parts, town, comm lots of great information on there um.
Let me see what else what do we have? I saw a good question come up, how has my business adapted to the new safety protocols Chris Emory, okay, so here in Southern California, we are still in a semi lockdown. I know some other parts of the countries such as Texas and different things have pretty much relaxed most of their restrictions here in California. My restaurants are still shut down, especially Southern California. My restaurants are still to go only and take-out you're not allowed to eat in the dining room, but what's happening is a lot of people are starting to rebel.

We have some restaurants that are actually just opening up and saying eff it. You know and just opening the doors, but legally we are still under a sort of lockdown. So as an essential service, I'm allowed to go to work, but the service work just isn't there. As far as the new safety requirements, we haven't even figured all that stuff out.

Yet I mean it's crazy right. Everybody has to wear, masks, METEC Nacala t. They say that in certain counties like the county I live in Riverside County. They said they're not enforcing masks.

They're not enforcing social distancing, but they recommend it. Okay, but other counties you still have to is: according to the state, you still have to social distance. You still it's just like a big political nightmare: okay, but adapting to everything, we're still figuring everything out every day. There's something new, so we all wear masks when we're at work.

I just use a neck gaiter which really doesn't do anything. Absolutely nothing doesn't protect me from anything. It just keeps me from spitting. When I talk, that's all it does.

I wear gloves I wash my hands, I keep hand sanitizer in my van, that's pretty much it. You know me. My family and I we went out this weekend - went to our local mountains. We spent Saturday and Sunday we just kept driving home and going back up.

We spent Saturday and Sunday and our local mountains just walking around they had some Lake Regional Park open. We were hanging out there up and for those that are in Southern California. We basically spent the weekend up at Lake Gregory in Crestline, and then we went between Crestline and Lake Arrowhead and some of the towns in between and we were just out, you know, enjoying life. Yesterday we went up to a picnic spot got some food, you know had tacos down by the lake and then went out and set up the slack line between two trees and set up a hammock and just hung out and watch the sunset.
But anyways I'm going off on a tangent about what we did, but it's very interesting. It's still new to us, like you know, when we were out shot on Sun no Saturday, when we were out, we had gone somewhere. My kids didn't have their masks with them, and so we went to a grocery store to get some drinks and the sign said masks suggested. So we went in the grocery store without masks.

It was kind of weird it was the first time we'd walked in public without masks, and it's it's a whole thing, so we don't know what we're doing yet we're just learning everything everyday. As far as the business goes, it's just as bad. We don't know it's a nightmare all right, apart from electrical risks during servicing. Are the gases any way harmful? Yes, Alex MC yeah, some of the gases and refrigerants that we work with? Yes, they are harmful inhalation.

Yes, you don't want to breathe any of the refrigerants, because they're all cancer-causing substances they're all toxic they're, not good. For your health they're, low temperatures, they'll displace oxygen, you could suffocate from them let alone some of the new ones are poisonous. They have some of the old ones, have chlorine gas in them? Some of them have our flammable refrigerants. So, yes, any of the refrigerants, they can be dangerous.

You have to know how to operate and work with them safely. I need to sell sign shirts. I don't know about signing shirts, that's kind of weird yeah I'll, have information available soon about the hats and different things like that. Okay, so I'll have a website set up where people can go and do all that stuff.

I already have the website. I just haven't made it public. Basically or I have the domain, I should say, but anyways yeah well I'll, put more details out there and I'll make it publicly known and don't worry. I only bought like 240 shirts or something like that.

That was a big investment for me. It was a couple thousand dollars in shirts. I had to buy and I'm pretty confident I'll sell them, but it's still kind of a gamble kind of scary to spend that much money, but once I receive them and get some pictures of them I'll put them up on a website and then we'll make them Available to be sold and all that good stuff, let me see what else we got going to do. I think it's best practice to cut it out.

Unbrace filter drivers, okay, I've covered that many times. Mr. V cappuccino. Okay, when you're working on refrigerant systems, it is always best practice to cut out a dryer okay.

But I've been trying to stress this as much as possible. Lately, there's best practice and there's practical okay, you have to find a happy medium between the two. Of course. Best practice is to pull a perfect.

You know 150 to 200 micron vacuum and make sure that it doesn't pass it to or that it passes a decay test not rising over 500 microns. Okay, that's not practical. Okay, that's best practice, but it's not practical, of course, every time that you're brazing on a system, you should be purging with nitrogen or flowing with nitrogen to basically keep contaminants from forming on the inside of the pipe and plugging up your refrigerant system. But it's not always practical, so you as a technician have to find a happy medium between best practices and practical, okay cutting a dryer out, if I can sure, but it's not always practical, because I work in restaurant refrigeration.
I work on very small equipment. It's very tight: sometimes you can't even get a cutter in there or there's not enough refrigerant line to put a different dryer in there. Okay, so you have to find that happy medium between there. I wish that schools preached that more because I find that kids coming out of school will message me and say and there's nothing wrong with it, but it just just understand I'll get messages.

You know I work for this company. I just started here and you know I went to school and they told me to do all this different stuff and when I get to this job they're not doing that and they're all hacks. I think I should go somewhere else and it's like no. No! No! No bite your tongue stay for a while, learn, what's practical and then make your decision okay, but coming out of school.

I understand why teachers teach that stuff. It's just. It's there's a fine line there. Okay! Sometimes.

I argue, though, because I've had teachers walk up to me and I'm not a perfect technician, but I was at the HR show and I had a couple different. I think three different instructors walk up to me among several people and say: hey my students watch your videos and then one of them was like you know, but I see you doing a lot of wrong things and I have a problem with that. Okay, that's fine! I don't do everything correctly, but you know when, when someone comes up to me or someone sends me an email saying you know, you didn't pull a perfect vacuum, I'd kind of like to question them on what they actually think. A perfect vacuum is because these people that talk a lot of crap and say that this vacuum needs to be perfect half the time they don't even know what pulling a perfect vacuum.

Is they just think of a number five hundred microns and they think that's perfect. Well, in practicality, when you're working on low temp, you need to pull a lot lower than that at the same time, they're preaching to pull a vacuum with your manifold. That's not always perfect! Okay, you shouldn't pull a vacuum with a manifold. Now, there's practical and not practical right, I don't always pull a vacuum without a manifold.

Sometimes I do use a manifold, but I understand the difference on you know: what's right, what's wrong so anyways, I went off on a tangent again, but hopefully I answered your question for you there, but okay um, let's see what am I missing in here. Do I think, okay, I already answered that one. How do I compete with being big picture when there's guys that will come in and be little picture great question mr. ice? That is an awesome question.
Okay, first off, I am NOT the perfect business right, there's some of my competitors right now and still have been busy this entire time and in the midst of this whole virus thing, I'm dead. All my guys were laid off up until two weeks ago. You know we were out of work for basically five weeks and we were dead. Okay, I'm sure that my big-picture mindset has a little bit to do with that.

So I am not perfect when it comes to a business, but how do I compete? I I there's a fine line, okay, but I have to do what lets me sleep at nighttime and I do my diagnosis, but at the same time I also need you guys to understand that. Just because I do a big-picture diagnosis doesn't mean that the customer lets me do the big-picture repair. Okay, when I give them a quote - and I say it's gon na cost this much to do it. Sometimes they don't choose to do it.

You know so sometimes I don't get to sell them. The big picture repair all right, but I always try to give them a big-picture diagnosis. I always try to give them the information and say this is what's going on. It was caused by this this and this, and we can remedy it by doing all this or we can just fix the problem right here.

You know and let them make those decisions, so I always put the tools in the customers hands and let them make the decisions. I just try to educate them as much as possible. That was a great question, though advice for new residential techs, Francis okay, go to work with an open, mind, learn how to keep your mouth shut, and I don't mean that you can't express opinions. But you got to know when the right time to say something to your boss or to ask questions, is okay, observe everything, take pictures of everything and when you get off work, your job is just starting, because I want you when you're at work to be taking Pictures without getting in trouble of all the equipment, nothing sensitive, all the models, all the serial numbers going home and researching when you get home.

Okay, this actually segues into a great question that I had - and it's right here had asked me and I have it on my list. Where is it at so I can mark it off, as I covered it ah right here, so someone had asked me what online resources there are for education? Okay, if you're looking for an online resource for education, of course, I would highly suggest you go to spoor Lynn. Comm spoilin is a sponsor of my videos, but they have a lot of great resources on their website when it comes to not just their parts but just refrigeration and air conditioning in general. Okay, the next best thing is to go check out my buddy Brian ORS website.
Hvac are school.com go-to HVAC, our school comm you'll find a great plethora of information on Brian's website. Okay, he does YouTube videos, he does podcasts, he does tech tips. He has links to industry resources, he's an amazing dude. I don't know how the guy sleeps just do some research check out HVAC our school comm, okay, I got no affiliation with Brian other than just being acquainted with him, but he has a great website.

So I'm always gon na recommend it. Okay, um! Let me see what else I'm missing in here. How is my and and forgive me if I'm skipping questions guys the the chat like bounces back and forth, and I don't get to them? Okay, ah Ernesto you said, you were told why you use expensive, Viper cleaner in your last video that was wasting too much money. Okay, so Ernesto is saying that in one of his videos he was asked why he used expensive Viper, cleaner okay, so Viper is a manufacturers, trademarked name refrigeration technologies and they have a lot of different products out there.

Okay, they have evaporator cleaners, condenser cleaners. They make nine log, they have hand cleaners, they have hand sanitizers, they have all sorts of different products. Okay, refrigeration technologies is a small company. That is a fair thing to say.

You know I would say that maybe their prices are a little bit high, but they're not horrendous. I wouldn't call them an expensive cleaner when it comes to the competitor new Calgon. You know they're the big industry, big boy across the country right there, everyone you know. I wouldn't say that refrigeration technologies cleaners are too expensive.

Now I will say that you know, for instance, if you look at it and you don't look at it in context, you know you may buy a jug. A refrigeration technology is Viper HD cleaner, which is completely metal safe, microchannel, cleaner. I highly recommend it, but you got to use it the way that they recommend you use it. You got to use the dilution ratio.

Okay, you can't go grab one of refrigeration technologies cleaner and just pour it in a new Calgon, coil, cleaner, sprayer right and then think it's gon na work the same because refrigeration technologies actually has their own sprayer and it has a different dilution ratio. So if you follow refrigeration technologies, dilution ratios, I bet you anything that you would find that it's not that expensive of a cleaner okay, the cool thing about a lot of refrigeration technologies cleaners, is that they they're they're they're metal, safe, they're, environmentally friendly. You know they're, not gon na burn your skin off. There's other cleaners out there that if you get them on your hands, I had a technician that got a condenser coil cleaner in his shoe.

He doesn't work for us anymore, I'm not gon na name his name. There's a lot of mistakes that went through this, but he got condenser coil cleaner in his shoe and he didn't do anything about it and he worked through the rest of the day with a wet sock of condenser coil cleaner. If I remember right, he didn't come to work for three weeks because he had an infection in his foot and it ate the skin away and got nasty. Okay, I'm not saying that refrigeration technologies, cleaners wouldn't hurt your skin, like that.
I mean that was some mistakes. On his part, too, because he should have taken a sock off and cleaned his foot right away with any cleaner, you have to follow their instructions, but I'm just saying that refrigeration, technologies, cleaners, almost all of them, are a lot less. I think caustic might be the right word. I know that's a big word that I may not understand completely, but that sounds like a good word to use, but they're a lot less harmful when it comes to your skin and the roof materials and different things like that.

So yeah anyways again another tangent on that one also Ernesto is HVAC. Our vlogger he's a technician here in the Northern California area and he makes technicians service call videos you guys should check out his channel. So what is the difference in efficiency between microchannel and slant? Thin condensers, I'm assuming that you mean standard tube and fin condensers compared to microchannel Chubin thin condensers. Are you have a copper line with a tube sheet of aluminum fins for the most part that are pushed over it and the aluminum fins help to absorb the heat? To travel you know it gets to the copper.

Faster microchannel is kind of like a radiator in a car, and it's a lot more efficient, so the efficiency difference is tenfold right. Micro channel condensers are highly highly efficient. Okay, you'll notice that, in that the condensers are a lot smaller. As far as the surface area goes, the refrigerant charge required for a micro channel condenser is like a third of the refrigerant charge on most tube and fin condensers.

So, overall, energy efficiency, refrigerant amounts - are lower, heat load on the equipment is absorbed better, so yeah micro Channel is much more efficient, but on the flip side, there's some problems with micro Channel often times they're aluminum. Well, they are aluminum and aluminum to copper connections. In the very beginning, where a weak point, the manufacturers weren't using the proper materials to join the two aluminum and copper together, they were doing all kinds of silly things. There was a lot of refrigerant issues even to this day they have micro, channel condensers have gotten a bad name, because people don't pay attention when they're trying to pump down especially residential air conditioning systems.

There's a rule out there that you don't ever pump down a microchannel condenser on a residential system. Well, it's not really a rule. The reason why they say that is because people aren't using their brain when they're pumping systems down okay, so depending on the residential air conditioner that you're working on if you're doing a pump down. And you close the service valve on the outlet of the condenser.
On some manufacturers equipment, the Schrader port no longer has true pressure in the system. Okay, you're reading the line set pressure. Now this isn't on all of them, but on some of them this is the case. So with that being said, if you happen to have an overcharge system and you try to do a pump down and say, you've got your gauges on there and you're, seeing the side pressure and the low side pressure drop, is it trying to pump down well what's Happening inside the system you're not seeing because the pressures on the other side of that valve and that pressures, climbing and climbing and climbing on most residential air conditioning systems, they don't have high pressure controls, especially in the beginning.

So there's nothing there to protect to that. Condenser from over pressurizing, okay, now I'm not saying that that solves everything and some equipment manufacturers have changed the orientation of their valves. But in the beginning you had a lot of explosions and and ruptures from microchannel condensers. Well, some of them were just simply because people weren't paying attention when they had their gauges on there and they weren't getting a true high side pressure reading.

They were trying to pump it down. Okay, also, if you try to pump down a microchannel condenser and it's overcharged, that refrigerant has to go somewhere. So at some point, something's got to give right. So it's gon na be the aluminum it's gon na, be the compressor head.

It's gon na be the copper line. Well, I can tell you that more than likely the copper lines not going to give and the compressor heads not going to give unless there's a soft plug somewhere in that system. More than likely it's going to be an aluminum connection, that's gon na start leaking so again going off on a tangent as usual, but the efficiency difference is tenfold. Okay advice.

I already answered that question. How is my supply houses dealing with kovat? Are we having to do pickups or deliveries Adam Neil, so our supply houses? Basically, they aren't allowing us to go in the supply houses and I'm going to discuss the problem with that, but we basically pull up to the back dock where they get deliveries. We call them, we say hey, we need to pick up this part. We tell them over the phone, they bring it to us.

We sign a piece of paper and we go okay. They will deliver to our jobsite, but that takes a while, because people are having a hard time everybody's trying to get deliveries now, one of the downsides Jason Huffman. Thank you so very much for that super chat. Man, that's awesome! Thank you.

Thank you. One of the downsides to supply houses, not letting us go inside, is on the manufacturers side. Let's just say, field piece, for instance, right field piece makes the gauges and stuff that I use all the time well. Field piece is gon na start to see a decline in their sales because they don't get those counter sales right now.
So, in order for someone to go, buy a set of field piece gauges at the supply house, they have to ask for them instead of walking into the supply house and seeing a hanging behind the counter and going whoo. I want those ooh. I want those who I want those and then finally buying them right, so manufacturers are starting to have to look at other avenues to push their tools ie. You know influencers on YouTube and Instagram notice that you guys have seen and I'm not knocking anybody, because you know I would be willing to do it too, but notice that you see more people on Instagram pushing tools these days.

People like true tech tools, is doing really good as far as sales go because they have an online resource they work with me. I can show tools and my videos I mean so everything's happened to change as far as the supply house goes. Ok, it also creates a dilemma too, because you know normally, when I go to a supply house honestly, I would just say: hey guys: I need to go get some parts I'll walk into the back of the shop they're cool with it. I pick everything I wanted.

I bring it out instead of having to describe to the counter guy what I want cuz oftentimes. I know exactly what I want and half the time. I know exactly where it is in the supply house and sometimes the counter guys don't so it stopped that, because now I have to describe everything again to them. So it's a dilemma: we're having to work through everything with this.

Let me see how do I make sure I don't have a restriction before I charge. Well, that's a loaded question, but but your system vitals, is really gon na make a difference. You do a full system and Natalie an alysus before you put your you start, adding refrigerant, so you're gon na see it depending on what you're working on your sub cooling is gon na, be really high or really low. You know you're gon na see it in your system vitals for sure.

Okay, if I, if that's kind of a loaded question, so feel free to send me an email, I'm gon na get to a couple questions that I have on my list right here before. I forget, I already talked about and I'll mention it again now. I already talked about that. I'm gon na take that off the list.

A great question that I had was a technician emailed me and he said that he just got out of school and his teacher was - and this happens with a lot of trade schools. His teacher was talking about air flow was like the number one thing that they talked. He was in school, but he also said that when he was in school they were pushing more residential training than commercial training, and that's a very common thing, because it's easier to teach residential than it is commercial as far as resources and things like that schools are Better set up to teach residential there's nothing wrong with that: okay, because the concepts are still the same, just more controls and complexity added to the system when you go into commercial, but the question he had was when he was in school. His teacher always said before you work on an air conditioner before you try to evaluate the system, you always check air flow and he said when he got to commercial.
That's what he's doing now. They don't do that as much and he was curious. What the difference between commercial and residential was and why we weren't as concerned and commercial about air flow. Well, in fact, we are airflow is everything when it comes to residential, commercial or refrigeration.

That is the key to everything. If you do not have air flow and commercial refrigeration, you do not have refrigerated equipment. It's not gon na be cooling your load. If you do not have air flow and commercial air conditioning same thing, you're, not gon na cool, your load same thing in residential, but what I'm gon na say when you're dealing with residential and commercial air conditioning, I'm gon na step out on a limb here and I'm gon na say: airflow is one of the hardest things to accurately measure, there's all sorts of air flow methods.

I was recently having a discussion with a guy at a counter. At a sub I mean at a that I met behind a supply house that recognized me for my videos and we were having a discussion about air flow. Okay. Air flow is one of the hardest things to accurately measure, so the most important thing, in my opinion, my my experience, is that you have to understand that nothing is perfect.

Okay, let's just say that you're going to use a hot wire, anemometer and you're gon na traverse the duct, where you basically hear hold on. I have one so I'm gon na grab it. So let's say that you were gon na traverse the duct with a hot wire anemometer; okay, so what you're gon na do is you're gon na take a this. Is a field piece sta? Okay? This is a induct hot wire, anemometer and you're gon na take this air probe.

Pull this off and you're gon na put this little chingus in the Airstream did telescopes out it's a great tool. You put it into the duct work and you take average readings over multiple places of the duct work you're going to traverse it. So you do one at four inches, one at eight inches, one at 12, inches one at 16 inches. And then you you, you, you go over to inches and you traverse the entire length and width of the of a certain section or actually just just height or whatever, of a certain section, a duct.

But the reason why you do a traverse - and you get multiple readings - is because you're taking an average okay, because in certain points in the duct work, there's turbulence, there's all kinds of problems. Okay, so this can be easily mismeasured. This is a great tool. There's absolutely nothing wrong with it, but if you don't do everything correctly, you can get incorrect information.
Okay. Also, if there's things in the duct work that you don't know about like turning vanes that are very close to where you're getting measurements, your measurement numbers can be skewed. Okay. So let's take this out of the picture.

Let's go buy a really expensive fancy flow hood and you put a flow hood, a flow hood as a funnel type device. You put it on a diffuser, it takes a measurement. Okay, let's say you use a flow hood when you put a flow hood up to a supply, grill, okay, it most flow hoods. Some of the newer ones they've compensated for this, but it creates an air restriction and if you don't compensate for that air restriction, when you put it up to the ductwork, what's gon na happen is, as you put it up there.

The flow has just been increased. Further down the line because you created a restriction for it to go through and a flow hood works very similarly to a hot wire anemometer, okay um. So if you do that, then you don't understand how a flow hoods working or you don't use it right. You can get an incorrect reading.

Okay, let's say you put a there's another measurement to a true flow grid. It's basically just a bunch of manometers or pitot tubes, basically not manometers, pitot tubes in a line, and he gives you air airs flow. That's a very good method of doing it, but it's not very practical, because most people don't have multiple thousands of dollars flow grid array to be able to put into a commercial unit.

9 thoughts on “Hvacr videos q and a livestream 05/18/20”
  1. Avataaar/Circle Created with python_avatars Michael O says:

    If you open an ebay store you can use their global shipping program and they deal with all the customs crap. You just send the stuff to their Kentucky warehouse. Service area Orleans??

  2. Avataaar/Circle Created with python_avatars colin gilland says:

    Fabulous show, on catch up as always due to the time difference. one day I will stay up late 👍

  3. Avataaar/Circle Created with python_avatars Chuck Ferraris says:

    Chris, can you pm me sometime? I need to discuss something with you.

  4. Avataaar/Circle Created with python_avatars onedown5ups says:

    Hey Chris watching your videos has got me out of some jams here lately. My mind goes back to videos of yours I have watched and it’s been a huge help for my diagnosis of equipment. Thanks so much for making these videos!

  5. Avataaar/Circle Created with python_avatars MrAdn says:

    Loved this live stream!!

  6. Avataaar/Circle Created with python_avatars Edwin Tabanao says:

    Good morning…. im a Filipino one of your fans,…watching from Kingdom of Bahrain… can i have your email address… i want to order like your clamp tester.

  7. Avataaar/Circle Created with python_avatars DIEGO FF says:

    Hello crack Heart Are you in Kanata ?

  8. Avataaar/Circle Created with python_avatars HVACtech says:

    Are you going to get into VRF systems?

  9. Avataaar/Circle Created with python_avatars Ted E. Bear says:

    Great show !

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