HVACR Videos Q and A livestream originally aired 08/09/2021 @ 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 q, a 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? I hope you all all are doing. Well, hopefully you guys are healthy.

I know there's a lot of craziness going around with all the crazy sickness stuff and everything myself and my family cross. Our fingers we're doing good knock on. I don't think, there's any real wood in my office. It's all the fake ikea, crap um, but you know the best we can do is try to stay alive.

That's that's! That's how you know i'm happy when i wake up. I think so it's all good um as usual guys. I hope you guys are doing well. I think i already said that i've got a list of things i want to talk about, and i want to be able to try to get to your guys's questions too.

Okay, remember if i pinned a comment at the top of the comments, if you guys have a question put it in the chat, put it in caps, lock, okay, if i don't get to it, you can keep reposting it until myself or one of the moderators tells You to stop. If i miss your question, you can feel free to send me an email at hvacr videos. Gmail.Com, you guys know the drill, it's pretty easy: okay, um! Sometimes these live streams, go so busy that i can't get to your guys's questions. Okay and i'm not specifically ignoring anybody, it's just life happens.

Okay, it's funny because even i was in someone's life live chat, uh recently uh roger wakefield, the plumbing dude um. I was in his live stream today and i like posted a comment, and it's like. Oh, you know it goes by and i don't think he sees it, but i realize that you know people get frustrated in my my chat too. You know there's a lot of stuff going on, but it is what it is.

We have to remember that you know. I'm not staring at the chat, i'm specifically looking at the camera and i'm looking at a list of things and then every once in a while. I look down at the chat and so people can ask a question and then three minutes goes by and that question's gone. I can't see it anymore, so um just just keep reposting it and be patient.

If i miss your question, feel free to send me an email like i said, i have a bunch of questions that are actually from emails that i'm going to answer tonight and then again we'll try to get to the chat so um, oh okay, dave k. That is a great point. Dave k says that there's a service bulletin on york equipment. You have to check the set screws to the blower wheels.

They are coming from the factory, not tight. Uh. I've seen that on linux, i've seen that on carrier i've seen that on just about every manufacturer. To be honest with you, nobody pays for proper commissioning right.

Okay, especially in light commercial. Nobody pays for a proper commissioning in the heavy industrial they probably get stuff commissioned, but during the commissioning process you're actually supposed to go through if you're, a factory tech a lot of times, they'll have you go through and double check everything, and then they want you To report back to the factory when you're commissioning and finding issues so that way, they can try to address them, whether or not they're actually going to do it. I don't know, but i have seen that i've seen uh blower, pulleys or motor pulleys spin undone and you open up the ac that was just installed last week and it's like the pulleys laying there in pieces. You know and the belts next to the the blower assembly, like i've, seen it okay, so manufacturers do drop the ball occasionally and, like i said, i mean in a perfect world, we properly commission the equipment and we check the tightness of everything.
But i mean at what point do you rebuild the ac? You know like i understand commissioning, but at the same time as a technician for real, like i got to go and check every screw. You know, like seems kind of silly, but hey it's the life that we live um. How are you guys out i'd like to know in the chat? How are you guys doing? Do you guys have a lot of parts back ordered? Are you noticing parts delivery times like significantly delayed, because i am uh? I order a lot of my oem refrigeration parts from parts town. First off i've noticed the shipping prices.

Oh my gosh going through the roof, but i also have a feeling that has to do with all the acquisitions and mergers that parts town has done. They basically become one of the biggest parts distributors, and so i kind of feel like they. They know their stuff. Doesn't stink and they can kind of start raising their prices at the same time, i know that shipping rates are going up, but some of the some of the prices you know it's insane.

What used to cost me because i used to have like negotiated deals with parts town where i'd get second day, air for the price of regular ground and regular ground used to cost like nine bucks at the most uh regular ground today, is anywhere from 15 to 25 dollars it's it's crazy, but i'm not blaming parts time completely. I mean you know it is what it is, but i'm noticing a lot of delays. I've got oem condenser fan motors on back order and everything it's it's definitely. Prices are going up all that stuff.

So, let's see what the chat has to say here: um major quality issues from heat craft and bone uh. I can agree with that one a little bit ethan i mean it kind of goes across to every manufacturer. Let's see um. What is the weirdest thing? I've pulled out of a system zachary windsor um.

It was one of my early videos. I pulled a plastic shipping cap out of the suction uh service valve of a compressor. It was wedged in the suction service valve and that compressor had been running for a couple years. I believe the video was was titled, late, night, walk-in, freezer repair or something like that, and i changed the compressor overnight and, as i was like pulling the compressor apart, i looked inside one of the valves while it's still connected to the system, and there was a Giant red cap in there that i pulled out that had just been getting mangled in the system by refrigerant that was a pretty interesting one to pull out of there um.
Let's see what else um saying uh part back order is destroying us you're, a machinist and getting basic parts. It would take one day now, taking three weeks or more, it's getting hard to get yeah, definitely for real waiting. Six weeks for a condenser fan motor. Don't know what's special about it, since they couldn't cross-reference it.

I'm i've been waiting for like almost two months now, a month and a half now for a train like one horsepower, ecm condenser fan motor and i've been like asking train to cross it over because it's one of their space shuttle units. It was in my recent video, i said it. It's one of those units that has a variable speed, compressor vfd is on the indoor blower motor, it's dehumidification. It's got all this fancy stuff micro channel condensers.

It's like a dang space shuttle. It has more circuit boards than i've ever seen in an air conditioner, and it has a bad condenser fan motor and the condenser is just getting ruined with water running on it. Right now - and it's like - i, don't know what else to tell them, because they only have there's no redundancy built into these restaurants anymore. So they only have two dining room acs, one for the dining room, one for the bar and the bar unit's.

Like an 18 ton and uh, you know they they need that running or the unit goes off on high head lockout and it's like what do you do? You know yeah, you know i people have asked me in my comments. Why didn't i rig up a water filter and all this stuff, because you don't plan on stuff being there that long and customers often times don't want to pay for all that fancy stuff, but yeah they're, going to probably have to buy a condenser when this is All said and done, let's see what else we got in here, uh three to four weeks to get an emerson compressor really see. I haven't seen a compressor issue yet at least, but i haven't been changing a lot of compressors. So that's an interesting one.

I haven't heard that one yet um, let's see what else we got uh, let's see hamilton says his plumber buddy says this parts warehouse said once they are out of pecks fittings. They aren't getting any more until after the first of the year. No clue, if that's true or not that's pretty crazy, yeah! That's pretty nuts right now! Um, let's see do i do residential air conditioning? No, i do not um okay. Why would a compressor, lockout board be bypassed? Would there be any pros or cons to bypassing them? Temporal engineering, no, it wouldn't be a good idea to bypass the compressor lockout board, the purpose of a comp, okay, so in general, a compressor lockout board uh.
Let's just use a carrier package unit; okay, that has a compressor lockout board. What it is is the safety uh controls, the high pressure, the low pressure and the freeze. Thermostat uh are wired through the compressor lockout board and if any one of those opens um, you know on system operation, they're, typically all auto reset the compressor lockout board locks. The system out so that way it doesn't short cycle on off on off on off on off until it burns out the compressor.

So, unless serious system modifications are made, you don't want to bypass a compressor, lockout board. Okay, i mean it's not a good idea anyways, but i'm not saying i've never done it. Okay, but you'd have to make some serious system modifications go to manual, reset pressure controls for the high side, but it's still good to have it on the low side, because if you have a plugged up, filter, dryer or something like that, you know it's going to Turn off and then turn back on and go back and forth now. Those compressor lockout boards also will monitor one leg of current for the compressor, and even if the high pressure and the low pressure are are correct.

The controls and the compressor tries to start if it doesn't sense current across one of those wires. It'll actually lock out the system too, so those lockout boards are rather simple to use once you understand them and they serve a really good purpose. You could also do the same with some relays and stuff you could you could rig it up and do some interesting stuff and kind of make your own lockout in a way, but that's a whole another day. Another problem so uh, let's see.

Oh yes, jason johnson, when i pulled the brush out and called it a poop stick that was for the longest time one of my most popular videos um, because, like a bunch of uh, weird youtube and internet like threads, picked up on that video and started sharing It and stuff, but that was an interesting one yeah when you stick those those brushes up into the ice machine and pull it out and you see like it, creates a poop stick and it's nasty that is pretty gross. That was a pretty funny one. Do i specialize in multi-circuit rack systems, air and or water cooled? I don't know if i specialize uh. What i work on is light commercial refrigeration and air conditioning.

I specialize in restaurant, refrigeration and air conditioning so um. I do work on some light commercial stuff, but i would say air conditioning wise. I don't work on anything bigger than 30 tons, refrigeration, wise, typically, not anything bigger than 5 horsepower condensing units. I don't do food storage, you know for like giant industrial stuff, i don't do any of that and i do not do any residential work so, but i do work on a lot of multi-circuited, multiplexed, refrigeration, racks and stuff like that.
But i don't do any racks that have um, you know unloaders and uh. You know parallel rack systems. I don't do any of that stuff. That's all supermarket fancy stuff! Um all right, 40 day delay on 80 20 aluminum extrusion also have packages stuck in illinois for one and a half weeks.

That's crazy! That is nuts where it's all happening. What are my opinions? Ac systems where all the lines condensers and evaps are aluminum? Well, i'm apprehensive about aluminum stuff, just because of the nightmares that i've heard from other people, but i have to be completely honest with you. I personally have not had any problems with aluminum evaporators aluminum condensers uh. You know i take that back.

I have had some glass tender refrigeration systems that have aluminum evaporators and yes, those did have a lot of refrigerant leaks, but it's not necessarily the evaporator. It's the solder that they're using to connect to the aluminum to the copper and there was constantly leaks at it. So whenever i would replace those glass tender has since gone to a standard, copper, tube and fin condenser, because of all the problems that they had on that and evaporate. I should say so, but i mean i really don't have a huge preference.

I've just heard a lot of bad stuff about aluminum, condensers or micro channel condensers, but i don't you know, have some have too many issues with them, so all right, um! I want to start off by talking about the channel. Okay, the channel in general hvacr videos. I've been getting a lot of questions and a lot of comments, and while i appreciate all the feedback, i just kind of want to address this on a channel level. So that way everybody can hear that's in here.

Okay, a lot of people have been emailing me asking me to do collaborations with people hey. How come you you don't work with this person. Do a video with this person this guy, this guy, okay, first and foremost, i want to explain something to you. I treat this channel different than most other people and i'm not judging any other youtubers or anything like that.

I just have my own style that i run this channel honestly. I don't want to put a crap ton of effort into this channel. I do not want this whole videos thing that i do to become a pain in my butt and there's times that it has become a pain in my butt, but i try to get back and i try not to focus too much attention on this channel. Hence why it hasn't grown, or i haven't done any crazy things or created classes or anything like that.

Not judging anybody. That's amazing that people have time to do that, but i'm trying to run a business first and foremost my refrigeration and air conditioning company trying to manage and pay attention to my family. And then i make videos for my employees and i made them public for you guys and hence this channel has been created. Okay, so, as far as collaborations go, i'm not saying i'm not interested in doing collaborations with other content creators, because i'm actually in talks of doing some, but i'm not necessarily doing collaborations to grow my channel.
That's not what i'm looking for! Okay and while i appreciate any growth, i want the growth to be natural. Okay, i don't want to just pound on this. I'm not building this to sell it or anything like that, i'm just having fun with it and you know i do make a little bit of money from it and it's all a bonus and a benefit, but i do not do it. For that reason, okay - and i think that might be reflected in my style - i kind of say what i want.

I do have some channel sponsors and stuff, but they work with me and appreciate the way that i do my stuff and that's why i love spoiling and refrigeration technologies for the way that they up um. Let me do my thing right. Neither of them is demanding, all of them are cool, you know they appreciate any mentions i give and it's just it is what it is. They want to be part of the community, okay, so um again, i appreciate all the feedback from you guys in the emails and please continue to send them, because maybe you can tell me about someone, but i have no interest in doing a collaboration.

That's simply for me to go on a video with another content creator to just say how much we like each other and all that stuff. That's and i'm not judging anybody else for doing that, but that's not my style. Okay. So there is some future collaborations coming down the pipeline, but they are going to be useful right, so stay tuned, because i'm potentially gon na be doing something with my buddy trevor matthews.

Okay, trevor matthews works for copeland emerson up in canada and he has uh. You know he's a cool dude, so just stay tuned. I'm not gon na talk too much more about that. But that's a useful thing because you know what maybe i can help to grow his channel right and then he can give me some official copeland feedback on what i showed in my video and that kind of stuff.

So that's the kind of stuff that i'm interested in, but i'm not interested in just doing something with someone just to give me more exposure. That's not my style. Okay and again, i'm not judging anybody for that, but i felt like i needed to address that because i get a crap ton of emails and comments about it. Okay, so we're done with that and let's move on um.

Let me look at the chat and see what i'm missing here: uh gabe's reef tampa. Thank you so very much for that super chat. That is much appreciated again. Thank you very much for all the support from everybody guys.

I've said it a million times i'll say it again. The easiest way to support this channel is simply watch the videos from beginning to end without skipping through anything you catch. My drift super easy. Okay, of course, there is people that have chosen to support the channel via patreon via youtube, channel memberships via super chats super stickers, paypal all that different stuff.
You can go to my website hvacrvideos.com, we got merchandise available, but the easiest way is simply just watch the videos from start to finish. Okay, guys. Alright, let's move on to the next thing. Let's see has anyone else been having issues getting viper cleaner packs, none out there in upstate new york uh.

I have not heard about any shortages yet heed120, but that's very interesting. You may want to reach out to refrigeration technologies. If you go to their website they've. I'm sure they've got to contact me or something like that and just reach out and just ask them hey.

My supply house is having a hard time. Is this on your end, or is this on the supply house's end? Maybe there is a shortage. I don't know. Um, if i remember i'll, try to reach out myself, but i haven't heard anything as of yet um uh right on 716 appliance guy, all right, let's see what else we got in here, um all right.

I answered that one uh. How long has the company stayed in business and do i still work on freezers when they're broken patchy pirates, the potty, the parrot and potty the pair? That's an interesting name: that's rather long um! So how long has my company been in business so my dad started? The company in 1990 uh 91, 1990 right in there 1991. I came to work. I grew up working with my father.

I came to work for him full time in 2001 and uh became part owner and we run the company together. Now my dad is not in the field anymore, so we have been in business for a very long time. We have. We have continued to have a lot of the same customers from the very beginning and have branched off into new customers um, but yeah.

So we we're doing good, i wouldn't say we're a extremely successful business. Um we're struggling just like everybody else. We have flaws, just like everybody else. The best we can do is try our best to give the customers the best service possible that we can give them.

That's all that we do um late night hvac. Thank you so much for that super chat man. I really really appreciate it. Um right on dude all right, so i'm gon na go ahead and get to my list of things to talk about.

Um andrew had asked me about getting into the trade and he was curious. What the requirements are here in the united states andrew is from canada, okay in canada. I know they have some requirements, so it depends on what state you're in uh scott hvac rookie thanks. So much for that super chat bud.

That is awesome. I really appreciate you, man. You constantly help out this channel you're a man dude, oh yeah, you want yeah. Look at that! Look at that get a haircut! I ain't get no haircut.

Man, i'm gon na, keep this hair long. I told my daughter, i'm gon na grow it, so she can give me a man bun so guaranteed. I will have a man bun soon. My daughter keeps coming in my bedroom every night and she's like curling it up in the back.
So i told her i'll have a man bun for her um, so uh andrew was asking about getting in the trade he's from canada, so every state and um is going to have different requirements. Okay, california does not really have any requirements to be an hvac service. Technician, the only thing they require is that you have a section 608 certification, that's actually a federal requirement by the environmental protection agency. Everybody has to have that in the united states, other than that you do not have to have any kind of licensing and or proper apprenticeship to be a technician here in california.

If you want to open a business, you do have to have to meet some certain criteria, but it's really not that hard to open a business. I kind of wish that they would require people be certified in some way or another, the but then again too um just like most other certifications when certifications first come out majority of them. They find that they're too difficult, so they end up dumbing them down. Um.

You know like uh. Originally i'd heard some rumors. I don't know if this is 100 true, but i did hear some rumors that in the very beginning, um like the nate certification, when they were exploring nate trying to decide what it was called again. This is rumors.

Do not know this to be fact, but i heard that they were kind of shopping out finding people and they had reached out to some organizations to get testing material written, and i had heard that the testing material basically was too difficult and nobody was going to Be able to pass it so they basically dumbed it down to where most people can pass it if you've been in the industry for so long okay. I know some people don't, but it is what it is um you know so a lot of times. I find us, even though we set certification goals, oftentimes there's ways to get around those certifications. So i don't know the answer to that question.

I really do wish that we had more certification requirements, but then again what i was pointing out is, i don't know if we would just make a reason to get around that requirement, though so i don't know anyways, i'm just rambling. At that point um i made a video recently where i had a carrier package unit and i had a plugged up metering device couple questions about that metering device number one. Probably the number one question: why did i not convert that to an expansion valve system and the reason why i did not is because to my knowledge there is not an oem recommended kit to compare or to convert that to an expansion valve kit. Okay carrier does not make it to the best of my knowledge um, so that's the main reason why i did not convert that system over to an expansion valve now.

I certainly thought about it. I certainly thought about contacting my partners over at sporland asking them to help me with the distributor and all that stuff, but you have to remember to do it properly. Like some people have sent me emails and i know people have done it and it works, and that's fine, but i have to make my system serviceable by my own service technicians. They can't be frankenstein systems that you know kind of operate, correct, like it has to be cookie cutter.
When you run a business with employees, the more field modifications you do to systems the more difficult it is for another service technician to walk behind you and quickly and easily diagnose that system. Okay, i find myself doing that a lot with a lot of different things. I try to use oem parts all the time and it's simply because i want to make it as easy as possible for my own service technicians to diagnose and repair systems, and i don't want them to have to go full einstein to try to figure things out. I've certainly done some of that in my career, but when you typically start you know, field modifying systems, there's a lot of okay.

Well, this isn't going to work perfect, but it's okay, you know, and it just makes it harder and harder for a technician down. The line, so i have to think ease of service for the next guy so trying to convert systems without having a factory recommendation that makes it a little bit difficult, okay, um! So that's why i don't try to convert my systems over to expansion valves and why? I put in a new evaporator now the next most popular question. Why the heck in that video did we not just change out the ac? It seems so stupid that we put all that money into that system and i agree it was pretty silly that we put that much money into that system bottom line. I gave my customer a quote to repair it, and i gave my customer a quote to replace it and they chose to repair it.

Okay, the quote to repair: it was cheaper than the quote to replace it, and i have this feeling - and i have this opinion of of this okay, these customers, as much as i would like them to think about tomorrow, they're only worried about today. Okay, all these crazy times and all this craziness going on. In my opinion, these customers are taking it day by day and if they look at the big picture and think about tomorrow and think about all this different stuff, i have a feeling. They'll spend more money than they have in their reserves right now, and they may not have that money when they need it again.

If something happens, if they start shutting down things again and stuff like that, okay, so i have a feeling these customers are just working day by day and that's why they're not doing these major capital improvements? Okay, i've heard of entire restaurant chains cutting back on spending and doing different things like that. So my restaurants are spending money hand over fist right now, but um they're not replacing equipment as much as they have in the past. Okay. So it's it's basically put in their hands.
I give them all the the options and i let them make the decisions and, of course when, when you know i quoted this job - and i said: here's the replacement, here's the repair and they said repair it. And are you sure, like this is a lot of money and who knows, if there's going to be a problem and they're like yeah, just just repair it just you know we'll deal with whatever issues come up later on down the line. So again, i'm just here to do what they ask me to do and i'm doing it: okay, so um. Let me answer that one uh kevin had asked me a question about replacing a txv on the system.

This is an interesting question, so the txv manufacturer. This was a split system. Air conditioner, the txv manufacturer, told him that they want to see 10 degrees, sub cooling at the expansion valve okay at the liquid line going to the expansion valve. But the equipment manufacturer says that they want to see eight degrees at the outlet of the condenser outside.

So kevin was kind of curious what he should do: okay, so, first and foremost, kevin. What i'm going to recommend is that if you're using the oem recommended expansion valve that you follow what the manufacturer of the equipment says to do so so, if it's carrier, if it's linux, if it's whoever lean on what the manufacturer of the equipment says, okay, i've Said it many times a lot of these customers be. Are the manufacturers beat to the tune of their own drum and they do weird things that are oem specific and apply only their equipment? Okay. So if you're working on linux uh package units, they don't recommend that you use sub cooling as a charging metric with txvs.

They want you to use the approach temperature, it's an ass backwards way of doing sub coiling, but it does make a difference. Okay, so everybody has their own little way that they want you to do things now. The idea of having 10 degrees of sub cooling at the liquid line going to the expansion valve is to ensure that you have absolutely no flash gas in that line, and you have a solid column of liquid going to the expansion valve. In that case, what i would highly recommend you doing, and especially if you're worried about it, is putting a sight glass out at the condenser, putting a sight glass right at the inlet of the expansion valve and that way, you're 100 sure remember that it doesn't.

As far as the expansion valve goes, the expansion valve just needs to see sub cooling. Okay, if you have sub cooling, you have a solid column of liquid okay, but if you're only measuring out at the condenser, you know there could be a point going into the expansion valve that maybe there's a restriction or a pressure drop or something like that. Keep in mind, too long line set, runs improperly sized liquid lines, different things like that can cause the system to not work properly. Now, kevin or andrew did or i'm sorry, kevin did get the system working and what he actually did was went in the middle and found a happy medium between what the manufacturer wanted and what the txv manufacturer wanted.
And he says it's been operating fine, but he was just curious about my opinion, so my opinion is lean on the side of the manufacture of the equipment, not necessarily the manufacturer of the component. Okay, um, let's see what else we got in here: uh yeah, guys. If you could, please smash the thumbs up button, it definitely helps out the stream. It looks like we have 368 people watching right now and 120 likes you guys.

This truly does help the algorithm and makes the algorithm happy when you guys get that like count up to the view count. So please smash the like button, guys. Okay, i'm gon na cross that one off my list and then i'm gon na, go to the chat and see what i'm missing. Okay, all right um anybody else having trouble getting curbs built for package units um.

I i haven't really had any issue with it, but i mean i did have some curbs built a while back that took about a month and a half to get built, which did seem a little bit long. But i'm sure that they're just short on employees and everything you know all right - let's see ann, probably having a hard time too getting materials. Raw materials budgets are accounts. Different department managers, the replacement budget - is not the repair maintenance budget in a corporate environment, and that is very true, flip-flop tan lines.

Um, you know, corporations have all kinds of different stuff. Okay, they have budgets that a lot for yeah replacements. They have budgets that a lot for repairs and oftentimes. They won't co-mingle those funds.

So you know it's just how the corporation runs and guys trust me. I want to sell equipment, but if the customer doesn't want me to, then i'm just going to do and to be honest with you, i make more money on service, but the equipment replacement solves headaches down the line because you get rid of this problematic equipment. But you know i just give the customer all the information and i let them make the decisions. You know i'm just the guy and they're making recommendations.

Zack had asked me what torch tips do i recommend him using when working in small refrigerators in the restaurants and stuff okay. So in my torch caddy i carry an oxy acetylene torch caddy. I do not use any bee tanks or anything like that. Okay, when i do braise, i am brazing with fifteen percent silfos: okay, um, that's 15 silver, and then it has other stuff in there and it has phosphorus in it that acts as a fluxing compound.

A lot of people will say how come you don't put flux on your brazing rod? Well, because you don't have to because silphos in its nature has flux built into it. Essentially, okay, but it's not like one of those flux coated rods, it's the phosphorus! I don't understand all the science, that's just what i've read and been told okay. So as far as the torch tips that i use okay, uh, let me, while i'm talking about the different solders first off too, i use 15 silphos. I do not use the the the low temperature melting solders, i do not use stay sylvaid or anything like that.
I fix too many leaks on that stuff and it makes it rather difficult for me, so i do 15 cell phos or 56 silver solder. Those are the only two solders that i use period: okay, um 45 works too, but i like the 56 percent. It's not that much more money. Now, when you do use the high silver content solders, the 56 silver solder, you do have to use a silver solder.

Uh paste flux that goes on there. Okay, i like using the spool of silver solder. I personally don't like the flux coated rods, because i find that when they sit in the van for too long the flux starts breaking off. Then it just becomes a problem when you're trying to braze it on i like to use the paste flux in the little tub, you know wipe it on there and call it a day as far as which tips i use, i carry a range of tips.

I have a zero tip. I have a number one tip, which i don't use the number one very much. I usually use a zero, a number two or a 15 um rosebud tip. Okay and those are the basic three that i use the zero.

The number two and the 15 rosebud tip um a question i get quite often. How do i know what the settings on my torch regulator should be when it comes to the brazing gases or the gases that i'm using for my oxy acetylene torch, and i will tell you to lean on the manufacturer of the tips? Okay. So if you look on the back of the packaging of a number zero tip, it actually tells you what the pressure settings need to be. If you have a rosebud tip, it tells you on the back of it and the same for the number two tip.

Okay, so lean on the manufacturers, and they will tell you what you need to set your pressures at for your your gases, okay, um, when i was in my recent video, where i was fixing the uh evaporator in the package unit that had the plugged up metering Device right and i was changing the whole evaporator when i was bra when i was uh soldering the drain line um, i got a lot of questions. Why did i take my flux and wipe it on the solder when i was done? Uh soldering it, and that was an old trick. I was taught by a plumber a long time ago to make your joints look. Pretty is, if you take an acid brush, you have to be very careful, you dip it in the paste flux and while the solder is still hot, just wipe the flux or wipe the solder with the flux, it'll smear the solder and make it look pretty.

So if you have any drips or anything like that, it'll like wipe it around and just make it look better. Sometimes i get kind of crazy and i'll get in there and i'll sand them too. One of the important things that i'm going to tell you guys is: if you use any of those paste fluxes, you need to wipe them off when you're done. So when you're done brazing when you're done soldering, if you're using any kind of a flux, i highly suggest you take a wet towel, wipe everything off and then dry the joint, because i've seen some of those fluxes go and start causing.
Actually, i have a restaurant that i can think of right off the top of my head that when they open that restaurant, the plumbers never cleaned off any of the flux - and i kid you not almost every joint in that building started leaking. They would have pinhole leaks all the time and every time you'd go. There you'd look at the the plumbing line because they would call me out thinking it was a roof leak and i'd go out there and look at it and where the solder was at it'd. Be all green and then you could see just a pinhole water leak and obviously someone didn't prep.

It right, didn't clean it right and didn't clean off the flux, so always try to clean off that flux. When you're all done just to make sure that you get everything taken care of how many service calls a day, do i run i get that question quite often too, and there's no number i mean it just depends. You know today i went and did a service call that took me about an hour and a half first thing in the morning and then i went and did another service call that took me the rest of the day. So today i got two service calls done tomorrow.

I might get one, maybe i'll get three, maybe i'll get four. It really depends on how much time each call takes. Of course, you know there's going to be times when we're super swamped and we have a million service, calls that we literally just have to get it running, put the fire out and then we'll come back and finish it later, but as much as possible. I like to try to finish the call, if i can, when i'm on site, that way don't have to make a return visit return visits just waste my time now, sometimes it's necessary because you need parts or different things like that.

But i do not have a quota that i have to meet. None of my service technicians have quota they're they're allowed to take the time that it needs to give the customer the proper service and make sure that it's fixed correctly. Callbacks are a nightmare for me. So i hate callbacks i'd.

Rather my guys spend an extra half hour to an hour, making sure everything is 100 making sure it's working watching it turn on and off four or five times before. We leave then for us to get a call back and find out. Something else is wrong. Okay, so i do not have a specific amount of calls that i run in a normal day.

I'm going to get to the chat and see what i got in here. Maximilian wants to know if i can explain linux's approach, method, okay, linux's approach method, it's not just linux they've, just adopted it from my understanding. They use the approach method on chillers too. So the approach method on a linux unit or on a refrigeration system is simple.
As this you take the outdoor entering ambient temperature, that's entering the condenser and you compare it. You find what the difference between the outdoor air temperature and the surface temperature of the liquid line, leaving the condenser. So, let's think about that, the outdoor air is being pulled into the condenser right and it's grabbing the heat from the refrigerant, rejecting it out the top of the condenser okay, and then that refrigerant is being sub cooled. Okay, so the refrigerant gets sub cooled it condenses into a liquid and it goes to the expansion valve right.

So when we measure the surface temperature of the liquid line right and then we compare the outdoor air temperature to the surface temperature, it's a very similar calculation than when we do sub cooling. So let's do the math for sub cooling. A sub cooling calculation is the saturated temperature of the refrigerant in the condenser compared to the surface temperature of the liquid line. Okay, so that's why i call the approach method, an ass backwards, sub, cooling, okay, because it's it's kind of the same, but it's not exactly the same all right now.

Why does the manufacturer linux use that exact method? I honestly don't know the answer to that, but i will tell you one thing: if you have a properly operating system right, you've got good temperature, splits uh the the feed pattern on the evaporator. You know it's it's condensating equally across the evaporator, the expansion valves. Look good, you don't necessarily have to put your gauges on the system right and disturb the refrigerant pressures to check the approach temperature of the system. It's a non-invasive way to check the charge.

Okay, you you look at all the vital signs. Everything seems to be. Okay, then you measure the outdoor air temperature and then using the same thermometer. You measure the surface temperature of the liquid line for that circuit.

You calculate the approach temperature and you look at what the manufacturer wants you to have as an approach temperature and you can kind of check the charge without going too crazy. Now, if you're having system issues, of course and approach, temperature even lennox says, is not very accurate if this system's severely undercharged or severely overcharged, but keep that in mind okay, so hopefully that helps there bud all right. Um, let's see is. I saw a question here and what did i miss um? Have i been affected by the labor shortage? Um i mean kind of, but not really, i'm very finicky about hiring people anyways.

So when i do hire technicians, it's a very long intensive process before i actually hire someone, so i mean, of course you know, i've noticed, there's less applications but um. On the flip side. I also have a little bit more of an advantage than some of the. Let's say the other service companies in my area, because i have this platform to recruit from so i kind of get to cheat a little bit in that way.
So i definitely got plenty of resumes when i went through my thing and then i just hired. You know i i went through and just decided who i wanted to hire um. How do i convince a customer to pay to have the condenser coil split on the double row? Coils um? I don't okay, i do not have one single customer that pays for me to split the condensers on a normal routine pm. Therefore, we have to be proactive and bring that stuff up when we're doing a routine pm.

We can kind of pop the top a little bit just look down in there and if we notice the condenser is really dirty, then we'll bring it up to the customer and we'll have them create a work order. So we can send two service technicians out there to pull the top on that unit and properly split it, and i realized that some people, you know i got an email last week saying you don't have to have two people to split those condensers. You can prop the top up with the the corner post you can, but the best way to do it is to lift that top off. I don't know if you guys notice on the carrier units when you, when you just prop up the top and you're doing it with one person it actually folds the top like there's a fold there that never goes away and it's just kind of wonky looking.

So i prefer to pull the top whenever possible, completely um. Let's see what else we got in here. There you go uh rich gt350r says victor has a setting chart for their tips: google, victor acetylene, brazing and cutting chart. That is exactly correct, and i've done some research about that too, and it's not just victor.

You can look at harris. You can look at or i don't know some of those companies are all the same, but you can look at all the different companies. Just google torch tip setting chart pay attention, though, because victor will have a a setting for cutting tips and they'll have a setting for a heating tip too. So, keep that in mind.

If we're brazing, i think technically we would be heating and not cutting. So just some food for thought, uh, let's see what else we got in here um. What do we have? What am i missing? I'm looking at the chat right now, um right on george robles, that's cool! You made your 608 awesome bud! Congratulations! Um! Funniest thing! That's happened to me in the field, the funniest thing that has happened in the field. That is a good question.

Um embarrassing like when i was really young, and i was a teenager or not a teenager but like in you know, 20 years old or something there was this girl. That would always leave her phone number in my tool basket like because she wanted to go out or something - and i was like dating my soon-to-be wife at the time. So it was always awkward for me because i wasn't a very um, confident person so like it was hard for me to like just straight up, say i'm not interested. You know i was just kind of like okay, you know so that was a little embarrassing.
For me, she kept leaving her number and then, like the manager, finally asked me if i was single and i was like: no, i'm not you know it's weird um i've blown out a drain, one time that was a funny one. I've talked about this before it was like a fish region that they kept shrimping crap and the drain was plugged up on it and i was trying to blow out the drain with co2. Don't use co2 to blow out drains i've since learned my lesson with that, but not because of this, but i was using co2 and i finally got it to clear while the manager was standing right there with me to blew shrimp all raw shrimp all over both Of us, the manager straight up left the restaurant and went to mervin's. That's how old it was a long ago.

It was and bought new clothes and just came back, and i was i had to work in my filth for the rest of the day. That was pretty nasty um. Let me see what else we got in here mike had asked me a question about which leak detector. I recommend the field piece or the inficon all right.

It really depends on what you're comfortable using okay. So the two top of the line leak detectors the field piece uh. What is it shoot? I can't even think of the name of it right now. Is it dr 80 dr-58 dr85? Whatever the the fancy field piece one is, i can't think of the number right now um.

I have that one and then i also have the inficon stratus detect, select or inficon stratus, which is like an 800 leak detector um. I find that both of them are pretty much equal and they both work, almost identical, uh. The field piece is a lot cheaper, so you do the math. Okay, i have the detect stratus, i'm a i'm, a a redundancy person, so i like carrying two leak detectors on my van, so i like having both of them.

So if i can't find a leak, i bust out the other one and use that one too, and i mean they both have been pretty darn, equal and and i've seen some people say: they've had quality issues with the inficon stratus or detect stratus or whatever. It's called i personally haven't it's been working great for me, so i've had really good luck with the field piece and the inficon. Now the stratus has the cloud hunting mode, which the field piece has something similar, but not quite as the same. So if you want that digital readout with the cloud hunting mode, you can do that.

But the field piece has a numeric readout: it's not a parts per million readout, but it's a numeric readout that allows you to kind of cloud hunt too. So you can walk into a big leak, adjust your sensitivity and watch the numbers drop or grow as you get closer and closer to the leak. So you do the math on that one. Why the heck? Are you putting a super chat in here? Adam you're? Not my daddy apparently clearly adam is not my daddy with hvac overtime.
No, no! No! On the flip side, what adam did remind me to do? If you guys did not already do it, you need to go check out the hundredth episode of the overtime show. So the hvac overtime show is a show that myself, my buddy adam my buddy bill and my buddy joe do together and uh we've been doing the the show i've been on it for at least like probably 80 plus episodes, and they had a couple like 20. Something before me, but we just hit our 100th episode for the show in general and bill spent weeks, going through every single episode and finding the funniest moments from every episode and then made a giant video guys. I am not kidding with you if you didn't already watch the video and if you did watch it and you didn't know this pay attention to me as i'm watching the video so we're in the four corners.

If you watch the actual live video. Okay, there's also a bloopers reel that doesn't show us, but if you watch the live show i was being filmed right while i'm reacting, because none of us had seen this and bill did it all. I literally fell off my chair because i was laughing so hard. I laughed the entire time it was hilarious.

Bill did such a great job, editing that show so definitely go back and watch that that's the hvac overtime, 100th episode, someone can post a link in the chat or something that was great. How do you know if a dtc valve is working properly on a walk-in freezer compressor, familia um? What you want to do is actually reach out to the manufacturer. Copeland go to the copeland gosh. I wish i had the technical bulletins familia.

Send me an email to hvacrvideos, gmail.com and i'll, send you the information i have on this, but there's actually a way to find out what temperature the dtc valve, which is a temperature responsive expansion valve essentially, and it has a capillary tube - that's shoved in the top Of the compressor and whenever the temperature of the compressor gets hot enough, it meters refrigerant into the compressor, to cool off the internals of the compressor. Okay, and it's when you see uh high compression ratios, they start to have cooling issues. So the dtc valve works when the head of the compressor gets to a certain temperature. It opens the valve now, there's also a strainer on that valve and that strainer can get plugged up in a perfect world.

We would install a ball valve before that. So that way, you can pump the system down, pull it off and check the strainer, but you most of the time they're not there, but you just need to look at the cut in temperature and as far as telling whether or not it's actually working when it Is feeding refrigerant you'll, actually see it condensate and or frost up on the outlet of the valve going into the compressor um so yeah, that's the easiest way other than that. It's not super easy to diagnose those, but i honestly have not really had any failures on the dtc valves, but i will say that when i do a compressor replacement, the dtc valve does get replaced with the compressor. So hopefully that answers your question familia, um, appion or true blue vacuum, hoses caesar.
I have them both and i have to say that the true blue, in my opinion, are easier to work with the appions. Still work they're just really large and big, and they get in the way and they're hard to bend. The true blue hoses are much more flexible than the appions. Keep in mind, though too, the true blue hoses, they are rather large too.

You can get special fittings that make them fit into tighter places and stuff, but there is, if you're, working on reaching coolers, it's going to be kind of hard to get the true blue hoses into tiny little spots. But if you're working on air conditioners, refrigeration systems, walk-in, coolers and stuff like that hands down, get the true blue hoses, you will love them, keep in mind too uh, if you guys want to help to support the channel and you're interested in purchasing some tools. If you go to truetechtools.com, i have an offer code, big picture, uh, one word: if you use that code, i get a small commission. You get to save eight percent on your order as of today, um that that eight percent may change in the future.

But right now it's still eight percent, so you get an eight percent discount on the the price. I get a small commission from that. If you know what you want to purchase shoot me an email, i can generate an affiliate link and i get a little bit more of a commission and you stick at the same discount, so um all right. Let's see what else we got in here.

How did i get my customers to start my own business joshua? So when my dad started the business in the late 80s early 90s? I think i said 90 91, something like that. We have had some of the same customers since then. Now what has happened was one of our big customers at the time we did a lot of work for him. It kept growing it kept growing.

It got too big. We consolidated and cut back on them, but still have done their work, managers or people that used to be cooks, got promoted, to managers, got promoted to higher up corporate level positions and they remembered us and they brought us with them. Then, when people in that restaurant changed companies and went to work for another restaurant, they brought us with them. So remember that guy, that's washing the dishes, he's not a peon, he's another human being and treat him with respect, and maybe he'll.

Remember you when he moves on okay, that guy, that was washing dishes might become a manager someday. He might become a corporate executive one day. I've seen it happen. Okay, so remember that when you're frustrated and you're angry and the cook's in your way don't be a jerk.
Okay, be polite. You know it's okay to say, you're frustrated but be polite and remember that guy may be going somewhere someday and hopefully he's gon na. Remember you when he goes there. Okay, so let's see what else we got in here, um! Yes, big picture, yeah correct! It is big picture correct by itself.

Um rich is telling george robles to learn crane hand, signals never use a cell phone to talk to the crane operator. Cell phones do have a delay, and that is a very good point. Okay, um rich is right. Sometimes cell phones have delays, sometimes things like that.

I've had crane operators who want to give me walkie, talkies and walkie-talkie. Even still too. I realize that there's some times that you have to do that kind of stuff.

14 thoughts on “Hvacr videos q and a livestream 8/09/21”
  1. Avataaar/Circle Created with python_avatars Toprevent Retaliations says:

    Light defusing paper A.K.A waxed sandwich paper…

  2. Avataaar/Circle Created with python_avatars Emi U says:

    You have the best laugh.

  3. Avataaar/Circle Created with python_avatars Bryan Richards says:

    Did you ever find out what is making the carrier units blocked up?
    Can you also put in a filter dryer in to filter the crap or other idea?

  4. Avataaar/Circle Created with python_avatars Bryan Richards says:

    I am now starting to carry repair parts. Keep cost under control as well as repair down time down

  5. Avataaar/Circle Created with python_avatars Jason Lenfesty says:

    Sawmill electrician. Regarding electrical motors. We don't rebuild motors under 30HP. Not worth it for the downtime in a production environment. Not that they can't be repaired.

  6. Avataaar/Circle Created with python_avatars Janne Pitkänen says:

    Just watched R134a and R290 experiment video and there was a discord link, it's not working. Can you give me a new link?

  7. Avataaar/Circle Created with python_avatars John Antonopoulous says:

    Hey man thanks for answering the question. I'll definitely check on the expansion valve and check to make sure before I get one ( if I do) that the system has a way to monitor high and low temps of water and refrigerant. My current system uses a heat pump to heat the pool and I would like to avoid having to turn on a whole entire second ac unit just to heat the pool for as long as possible. Are you in Ottawa ?

  8. Avataaar/Circle Created with python_avatars Donald Westhoff says:

    I have a question, I have a 3.5 Ton residential AC Condenser, I am in Kansas we have a lot of wind so dirt is always in the air. What do you suggest I use to clean the condenser coil fins with, Formula 409 is just not doing it.

  9. Avataaar/Circle Created with python_avatars mark koppisch says:

    Do you use any blends to replace R-22?

  10. Avataaar/Circle Created with python_avatars Christopher Smith says:

    I'm glad these customers don't opt for replacement. It makes for better videos lol

  11. Avataaar/Circle Created with python_avatars Jonathan Hughes says:

    Crap i missed it crazy day at work bummer.

  12. Avataaar/Circle Created with python_avatars MRSICTECH says:

    Hey Chris, ok you told us a secret from young days, how about now? Do you get sometimes look or jocks from waitresses? I understand if you can’t answer this one 😆

  13. Avataaar/Circle Created with python_avatars AwwYeah!!! says:

    Whoever left the thumbs down needs to have an rtu dropped from a crane onto all of their fingers……….. Service area Nepean??

  14. Avataaar/Circle Created with python_avatars Jj Mn says:

    Livestream ended?
    Sad! Are you in Barrhaven ?

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