This is the HVACR Videos Q and A livestream originally aired 11/11/19 @ 5:PM (west coast time) where I discuss my most recent uploads and answer questions from emails and the chat.
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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 you guys doing, hopefully you're all doing well, see there's a lot of people in here already um got some stuff I want to cover, and We will it's weird one of my screens is flashing. I don't know why it's doing it just a mess with me, but it's not doing it on your guys's side, but anyways um I've got some stuff.

I want to cover and lots of questions. I want to answer and we'll get to it. Okay, I see you guys in the the chat. Do me a favor? If you guys have questions, please put them in caps lock.

It helps us to field the questions. Okay, it's totally! Okay, for you guys to have your separate chat going on and that's the way that we separate the separate chat from the questions that you want me to answer feel free. If I don't answer your questions to post them again, you're not going to hurt my feelings. Just go ahead and post them again: it's not a big deal.

Okay, so definitely put them in caps, though okay um, let me see what we have going on here: okay, hello to everybody! That's in there how you guys doing this evening, so 4 liter powered you got it man, it was just married. I got to figure out like I for some reason I had the night bought set on a timer to put the movie quotes in a half an hour after the stream, but I think it starts the timer not to confuse you guys when the stream starts. It's. It's a whole thing, but anyway, so it was supposed to do a 30 minutes after and then it posted it like 2 minutes in so go figure but anyways.

What I want to start off talking about today is a very interesting thing that happened. I don't know if you guys have heard about it. There was a restaurant back East somewhere we're not gon na name the restaurant, because we don't need to give him any more negative publicity, because it wasn't the restaurants fault. Just a horrible thing happened where one of the employees was cleaning the floors and he mix some chemicals and inverting Li, and actually someone ended up dying.

If you guys haven't heard the story, does Google search it? It's super sad, ok, the reason why I bring it up was because the two chemicals that he mixed were basically my understanding was. It was a calcium. You know. Basically, it was phosphoric acid and bleach okay, which, if you guys so he had like a floor, cleaner supposedly there's a couple different news articles.

But I happen to talk to the same restaurant chain because I do some work for them and I was talking to a manager here locally and he was kind of explaining what happened, but someone inadvertently mixed some chemicals. Apparently a lot of chemicals and the smell made. The person run out of the restaurant and then the manager came in started, trying to clean up the mess and the manager actually died from it, which was really really sad. I have personal experience with that because I have inadvertently done the same thing.
Nobody got hurt, thankfully okay, it was very easy. In my situation. I was cleaning a nice machine. I was using clear, pure phosphoric acid ice machine cleaner, which is like the new Calgon clear.

I had cleaned the ice machine and I went I did everything correct. I cleaned the ice machine went through the cycle, everything dumped down into the drain and then I went to sanitize the ice machine and we used to use bleach, which is actually a very good sanitizer. So I poured bleach in the ice machine, sanitize the ice machine, cleaned everything off and then dump that down and for whatever reason it still baffles me to this day. When that dump down the drain, it made a chemical reaction and the chlorine gas started coming up out of different floor drains inside the restaurant.

It was very scary for me because luckily there was no customers in the building and in my situation and the exhaust fans were running, and I happen to have a water hose from cleaning the ice machine. So I just dumped it down the drain and just flushed out the drains again to this day. I still can't fathom that the mixture would be perfect for that ice. Machine, cleaner and the bleach to mix.

There must have been ice machine cleaner in the trap and then the bleed you know I mean it was just you know, just a perfect storm. Basically, and I've heard a couple. Other people say the same thing, so I want to remind you guys about mixing chemicals being really careful in this situation. I mean it was a horrible accident, you know and unfortunately, someone lost their life and that's you know, that's crazy, but you know we work with those chemicals.

My van well, my van, doesn't have bleach in it, but my van has all kinds of cleaners. You know sitting at it and I'm sure that there's all kinds of rules about storing those cleaners that we probably don't follow that we probably need to be careful about. You know we need to be very cautious about that stuff and we need to that. We get to go home at nighttime, so you know we got to be really really careful and make sure that you know we're watching out for ourselves and then also paying attention to what other people are doing, because when that story came across the news, I immediately Immediately thought there was someone there cleaning an ice machine and I was worried.

I you know I was of course I was sad for someone losing their life, but my my next reaction was oh, my gosh, that service company holy moly, you know and it ended up not being a service company, but that was my first thing just because that Happened to me - and it was it's so easy to inadvertently do and to this day I mean bleach is still, then I mean I would love to be able to use bleach. I can't use bleach anymore and the only reason why I don't use bleach anymore is because I don't want my employees responsible for using bleach. So we just follow ice machine manufacturers, installation and cleaning instructions, and we just use the SMS sanitizer solution by new Calgon. You know so it's it's, it's a different type of sanitizer, but you still got to be careful, mixing the chemicals you know.
So it's it's really sad, but it's just one of those things you got to be really really careful. So it's a really scary thing. So yeah any kind of chemicals really any bleach mixed with anything is just no bueno. You don't want to be doing it.

Okay, and just just remember that we have some heavy-duty cleaners. In our van I mean that's, phosphoric acid is no joke either and that's pure ice machine cleaner. It's no joke and that's the clear you know a lot of times. The nickel safe is like a citric acid, but even that can have chemical reactions, mixing that with stuff.

You know one of the things that we need to think about too, is, if you guys, use a pump sprayer for chemicals. You know you got to be careful about that too. So, personally, I don't like putting chemicals in my pump sprayer, but I do occasionally - and I make sure that I rinse it really really well to make sure that we don't have any problems but yeah. You just want to be so careful because it could end very badly, so I want to talk about the and again we're trying to help spoilin out with their 85th anniversary promotion they have going on with these pint glasses.

These I've shown these a million times. Okay, spoilin is giving the away I'm gon na go through just real quick show. You guys a really simple thing on how to do these, and what I'm gon na do bear with me here is we're just gon na post a I'm gon na make it easy for you guys, okay, so what I'm gon na do is I'm going to screen Share here right now, and what we're gon na do hang on just one second, is we're gon na make a post really quick and I'm gon na show you guys how easy this is for those of you. I don't know if I don't know why it's so difficult to do this for some people, so I'm just going to show you guys just in case anybody's.

You know confused on how this works, so what we're gon na do is we're going to. Let me turn this off. I'm gon na go ahead and transition over and we have the screen share going on right now. Okay, so really easy.

I'm just gon na go to my Facebook feed, I'm currently on my phone using the Samsung Dex app. So I'm gon na go to my Facebook feed right now and I'm just gon na post a picture and make a post so bear with me because I can't type without staring at my keyboard. But it's just as easy, as all you got to do is put the hashtag hashtag, whoops hashtag or the pound sign for us old guys, spoor lynn, 85! That's it right there just as easy as that. I'm gon na post a picture from my phone.
Okay right here, there's a picture done and let's go ahead and there we go done. That's all we need to do hit done, got a picture, a bunch of stuff that i've posted - let's post, that on there real quick and it's as simple as that. Spore lynn. 85, i've entered the contest now.

Okay, super easy guys, so i'm gon na go ahead and turn this screen share off real, quick and let's go ahead and turn my webcam back on transition that back over can't really beat that super super easy. I am gon na. Go back to this app in a little while and show you guys some more stuff with it, but what i want to do right now is see if i can't there we go right. There move this over here, go and minimize that super easy, guys yeah.

I know I need to learn to type definitely so just post any picture that you guys have of any spoilin products with the hashtag spoil in 85. Okay, if you guys at this point right now, you're really good odds of winning okay, they're gon na be doing this contest until December 31st, and all that you got to do is put that hashtag in there and then, if you guys, win they'll, send you guys One of these cups right here - okay - this is for their 85th anniversary and again this is gon na be going on until December 31st. You guys all have a chance to win. So it's on facebook and twitter - that's all you got to do is post it out.

In there, that's it simple as that: okay hashtag spoil in 85; that's it, you don't need to tag them or anything. What happens is, is someone from spoilin is basically gon na go on facebook and twitter and they're just gon na type in the hashtag, because you can search by hashtag, so you type in the hashtag hashtag spoil in 85 boom and every post that anybody's had comes Up and so they can look and see, and they just basically take the people that entered they, throw them into a drawing, and you guys get a chance to win one of those cups so give it a shot. They basically haven't had a lot of entries into this, so you guys have really good odds of winning, so give it a shot guys all right. Let's get to some questions here.

What do you guys got going on in here? I'm seeing let me see we got any questions, remember again, really keep or putting okay. So oh yeah, yeah David air conditioning solutions, you said: use a coil cleaner that is so harsh. It burns your skin well, most of the coil cleaners will. If you use refrigeration technologies, makes a cleaner called it's the Viper HD cleaner.

It's a lot less corrosive, it's still a degreasing cleaner and it works really. Well, that's a really good mild cleaner and then they also have the heavy duty kind of like the new bright, the blue stuff, that foams like crazy. They also make that one too. So excuse me all right.

Let me see okay, so I'm gon na go through my list right now again post your questions in the in the chat right here in caps, lock and we'll get to them. Okay, so I had a question about low pressure controls, okay and how to set up low pressure controls the person that emailed me was my buddy Chad and he just asked me. You know just to clarify some things about pressure controls. Okay, so setting up low pressure controls first off, you need to know what the system, what cut you know what type of system you have if you have a low pressure control? Okay, and what I mean by that is, is the low pressure control, just as simply a loss of refrigerant safety.
So when the refrigerant runs out it shuts the system off or is it being used as a pump down low pressure control, so a pump down system? We do that to try to reduce refrigerant migration, up to the compressor when the systems in the off cycle. Okay. So what we do is we'll pump the system down and the liquid lines solenoid valve will shut off and then the refrigerant basically just stops behind the liquid line solenoid valve. So with that being said, you can also take the low pressure control and you can also use it as a temperature safety.

Okay, understanding that refrigerant pressures and temperatures have a direct correlation. Okay, the temperature of the evaporator and the air temperature inside the walk-in. Let's say we're dealing with a walk-in cooler. The walk-in box downstairs is directly related to the pressure in the system.

Okay, with that being said, we can set up the low-pressure control to act as like a safety to make sure that the coil doesn't freeze up. So if we know that we want to maintain 35 degrees in the box, we know the evaporator TD, okay, we can set the low-pressure control to make sure that the box will never get below 35 degrees. You need to be careful with this, though. Okay, there's a lot of things that come into play here, especially if you have remote systems and especially if you have head pressure, control valves and different things like that, when it gets really cold outside.

If the low pressure control cut in temperature is set too high. That can be an issue okay, so, but on a typical pump down system. What you typically want to do is you want to talk to the manufacturer of the compressor and you want to see what they recommend the low pressure controls that so, if I'm dealing with 404 a most of the time on a pump down system, I'm probably on A scroll compressor, I'm probably gon na - set the cutout at about 10 to 15 psi and the cut in about 30 to 35 psi. But you got to be careful.

Okay, you don't want short cycling. You got to kind of keep that number. You know the differential as big as possible because you can have short cycling, especially if you set it below 10 psi on pump down. Then the pressure-relief and the compressor is going to open and basically bleed refrigerant back over and then you're just gon na have a short cycle situation where it goes on off on off on off okay, so we really don't need to know struggle too hard.
If it's a pump down system, you just want to make sure that the low pressure is not set too low to where the compressor is going to short cycle. Okay, so hopefully that answers your question there, Chad, if you got any more questions, feel free to send me an email message me. You got my information. So let's see what else, what causes locked, rotor, amps on a three-phase scroll, compressor or any compressor? Well, locked rotor, amps, you're gon na hit.

That's a good question, so you're gon na hit locked rotor amps. Let me think about that one familiar for a minute. Let's see if I can answer that correctly yeah. Let me think about that for a sec before I stick my foot in my mouth and answer that incorrectly, let's see any tips on troubleshooting using superheat and subcooling AC raider edward.

So the biggest thing about troubleshooting using superheat and subcooling is first off before you jump into the superheat and sub coin, we got to verify that we have proper air flow. Okay, superheat and subcooling can help you identify airflow if you're working on an air conditioning system, but you need to make sure you understand how the system works before you dive in and just use, superheat or sub cooling as a charging metric. You've got to verify that everything is working as best as possible. So if I walk up to an air conditioning system, I'm gon na walk up to it and, let's just say it's a packaged unit.

I'm going to before I put my service gauges on it. I'm gon na make sure everything's working the compressors working condenser fan motor evaporators. I'm gon na make sure that the evaporator fan blower wheels, not dirty, make sure the evaporators not dirty the filters clean. Okay, then, if I decide I need to put service gauges on it, then I'm going to put service gauges on it and I'll analyze the refrigerant saturate temperatures and then get superheating subclone and go from there.

Okay, I typically like to lean on the manufacturer to see what they recommend. If not, you can use rules of thumb. Okay, you can use the target superheat calculation if you have a fixed, orifice metering device. Okay.

So if you have a fixed, orifice metering device, that's gon na make you get indoor wet, bulb. Temperature outdoor dry bulb temperature and then there's a calculation. That's gon na tell you what your superheat should be. Okay, if you have an expansion valve you're gon na make sure that you have the proper sub cooling, okay coming out of the condenser, to make sure that your condenser is performing properly.

You are gon na look at your superheat, but you're gon na pay. A lot of attention to your sub cooling and again, you can use a rule of thumb on the sub cooling, but you usually want to lean on the manufacturer. So as far as tips, you know, the biggest tip I can say is talk to the manufacturer and see what they want you to have as far as superheat and sub cooling numbers. First, if you don't have that information from them, I would suggest using an app like measure quick measure.
Quick can definitely help you to diagnose systems and can help you to understand superheating sub cooling better and how to diagnose with it. So I know I didn't answer a lot there, but hopefully I kind of touched on that one, a little bit here. Let's see what else we got going on yeah Stewart Thompson, I see what you're saying yeah it is. It is what happens when the motor doesn't turn basically okay, but um yeah.

So he's he's typing that one in okay. So I need to replace my evaporator. It is leaking Dave Palladino. If it's leaking, then it's time to replace it for sure.

But okay next question I want to address. I went through the spoil in 85 and kind of go into my list right here. Right now is talk about the videos that I uploaded. Okay, so the videos that I uploaded recently were the beer walk in with the dirty condenser, and that was an interesting one, because even after I cleaned the condenser with water, we were having issues with the condenser, still running high head pressure, and then I found that It was actually still dirty inside.

It was impacted, very bad, but then I found that the fan pack had actually separated from the condenser coil tube, so it wasn't actually making good contact. So we are in the process of replacing that equipment. We haven't done it yet. I also released a this video last week, where I showed a little airbag tool that I have and that's this little tool right here.

It was just kind of a update to that exhaust fan. Okay, it's a pretty cool little tool. You can get it from Home Depot Lowe's, whatever I also put an Amazon link in there, where you can get three of them. I think for like 25 bucks or something like that very, very handy little tool to have in your truck stock.

I think that was 15 bucks. I think the Amazon things like 25 or you get three of them today - was a Kai rack, blue region. Okay, and I want to talk about that a little bit cuz. I always get all these questions when I up when I upload the videos about the Kai rack blue system, so the Kai rack blue system is basically just kind of like a mini chiller, okay and what it does is it takes a glycol as a secondary cooling.

Fluid okay, the refrigerant is basically contained in the condensing unit and then coming right out of the condensing unit is your liquid line. It goes to the expansion valve and then it goes to a heat exchanger. That heat exchanger is your evaporator okay, but then there's a secondary fluid going across the evaporator and that's glycol. The glycol is being pumped by a transfer pump and the glycol is then pumping up to the cold rail up on top of the box.

Then it goes down to the evaporator section down below or the the base section down below, which isn't called your evaporator there. Now heat exchangers, it goes to the base section down below and then it returns back to the glycol pump and just recirculate. So the interesting thing about that box is the reason why they do. That is because it helps to maintain better temperatures inside higher ambient kitchens.
Okay, if any of you guys - and I mentioned this in the video too - if any of you guys have worked on any of the Chi rack systems before they were very, very effective and they worked really well, but they had a lot of maintenance issues drains plugging Up pan chiller motors going bad, the new design is actually very effective, very efficient. The one thing I will say about the new design is is when you're watching a hot pulldown. They take forever to come down to temperature, but they maintain temperatures once they get there. Very well really not much to them.

Okay, they're, just a small little chiller is all that they are okay. The condensing unit cycles, basically off of those temperature sensors that I replaced and that's pretty much it. Okay, the temperature sensors are in the like all coming back from the bottom section, even our bottom section, heat exchanger and the temperature controller just looks at that glycol temp and whenever the glycol temp gets high enough, it turns the condensing unit on and cools it. So the glycol pump is running 24/7 as long as that unit has power, and it's just circulating that glycol all the way around and then the condensing unit just turns on and off.

Okay, so there's really nothing difficult about those. I get so many questions about how they work, but it's just it's really just a little chiller. That's all that it is okay, nothing fancy to them. They just have a little Traulsen and teletrac controller controlling them and that's pretty much it and, like I mentioned in the video too, if you guys don't already know traulsen and KY rack or sister companies, they're no they're owned by the same Illinois Tool Works.

Big giant conglomerate company, so they share a lot of the same components. So when the merger happened, KY RAC used to have their own controls and they kind of ditched them all and then just adopted all the I'm sorry KY rack used to have all their controls. Their own controls and when the merger happened, they ditched all theirs and went to the Traulsen and tell it all controllers and then just kind of repurpose, those existing controllers. So all right, let me see what else we got here: HVAC kid and what ways do receivers effect sub Coyne? Well, when you're dealing with a system with a receiver, I honestly don't know how to answer that question appropriately Isaiah.

But I know that when you're dealing with a receiver, we're really not going to pay too much attention to sub coin. Okay, as far as you're, not gon na see 10 degrees sub cooling on a system with the receiver very often okay, you do use sub coin as an overcharge metric. Okay, so you're gon na look at it and say: okay, this system is got 30 degrees. Sub coins something's wrong, okay, but typically the numbers that I see and again it depends on where you measure it, because that's the that's the real thing where you gon na measure sub coin you're gon na measure it coming out of the receiver you're gon na measure.
It coming out of the liquid drain of the condenser you're gon na get different numbers at each one of those okay. I haven't really I've been thinking about doing experiments Isaiah about sub poin, but really it's just one of those things where I got so much going on. I really don't want. I need to do it, but it just hasn't become a priority for me to measure the sub point to see how it changes and different things.

Some people have been asking me and I will get to it about how the sub poins gon na change, when the Headmaster's bypassing or the head pressure control. That was bypassing and different things like that, but yeah. I just really don't even generally pay attention to subcooling, except for when you see a really high subcooling number. Okay, that's when you're really going to know that you got a dirty condenser, crypto fox dude! Thank you very much for that super chat.

I really appreciate it. Man, let's see what else all right - okay, so I'm going to okay! The next thing I want to talk about is the R for 48 refrigerant, okay R. For 48, eight I've been getting a lot of questions this week. About converting systems are for 48.

A people have asked me how hard is it? What kind of problems have I had? What's the process? It's really not that hard guys. Okay, first off, I'm gon na say that my buddy Ralph - I don't know if he's still in here - he was in here before I'm gon na put his email in right now. Ralph works for Honeywell. Refrigerants he's always willing to answer your for 48a questions.

Okay, so everything that I can't answer, which is gon na, be a lot Ralph's gon na be the person I just put his email in the chat. You guys should definitely look that up okay or give him an email, he'll he'll answer all the questions you need. First thought: 448: a is not the only refrigerant out there. There is other refrigerants, there's 449 and I'm sure there's some other ones that can replace r4 for a okay for 48, a mainly is in my understanding and r4 for a replacement refrigerant.

Okay, it's for medium and low temperature applications. I don't think it has very much use as an air conditioning or a high temperature application. They've got other refrigerants that work better with that. Okay, but for a medium to low temperature application for 48.

A has been the refrigerant that I have chosen to go to win on changing 404, a equiptment out. Okay, any new refrigerant, basically is gon na, be if it's medium temper. Low temp is gon na be 448 a for me here in Southern California and 2019. We had a phase-out of r4 for a where we're not allowed to use our for for a for new installation anymore, there's a bunch of different rules, but in a nutshell, we're not allowed to use it anymore.
There's some exceptions, but the changeover really hasn't been that bad. Okay, the hardest thing was, in the beginning, the changeover, the manufacturers didn't publish a lot of information of the like heat craft and cold zone and Tecumseh didn't have a lot of great information, and so we were having to well. What was happening was equipment was being oversized. Okay still worked, okay, it's just our TDS were thrown off and things happened.

Okay, just basically didn't really affect the way that the unit worked it just. The pressures didn't really make sense and different things like that. We've since kind of gotten some information and kind of learned how to properly use and sized equipment when we're changing over to 448 a the biggest confusing part about 448, a is the glide. It has a high temperature, glide, okay and it just basically changes the way that you size your equipment.

Again, I'm gon na ask you guys to send Ralph an email he'll. Send you guys. He sent me a file today that had a ton of information. I can't even there's so many PDFs in that file that I can't even send it in the chat there's just so much going on, but there's a ton of information.

Okay, the biggest thing that you have to understand: 448, a is meant to be used with polyester oil if you're changing over from r12 or any of those gases. You're gon na have to do some pretty big system, retrofits, okay, if you're changing over from r22. It's really not a lot of change over okay, although, if you're changing from r22, you do need to be careful because our 22 had chlorine in it for 48 a does not so you can have refrigerant leak, so you will have to change some seals and different Things like that, if you're changing the system over, you do have to be careful, but the operating pressures of 448 a are nothing to be scared of it actually looks almost identical to what r22 did very low, condensing temps. I'm sorry, you know the pressures, basically almost modeled r22, but it actually is lower discharge temps than our 22 okay, because our 22 typically ran a higher discharge temp.

As far as converting from 404 to 448, a the best practices are to change the evaporator change. The expansion valve the nozzle okay, but that's not a perfect, it doesn't happen all. Is it that way? Okay, you can utilize the existing nozzle in the metering or in the district and tubes. You can utilize the existing expansion valve.

What they're gon na recommend is to try to adjust the superheat on the valve accordingly, okay, and if you can't get to superheat under control, then they actually will recommend just changing the powerhead taking the existing foil for a valve. Putting in our 22 for 48 a powerhead on it and seeing if you can adjust it from there, then if it still doesn't adjust and they recommend replacing the entire expansion valve. My thing is: is that if i'm gon na do the conversion, i'm just gon na get all that out of the way and i'm just gon na change the entire expansion off? Personally, that's me: okay, you don't have to go that route right away. You can utilize the same equipment and just try to adjust it accordingly.
Okay, one of the biggest things you guys need to understand is you need to understand how to or you have to adjust superheat on the expansion valves you can't in the past. We would just do an installation slapping the valve and walk away or people would, I shouldn't say, just walk away: you're, not gon na get away with that with 448, a refrigerant okay, especially if you're using an existing r4 for a valve. Okay, you definitely need to check to superheat and adjust the valve accordingly. Okay, be very, very careful about that, but other than that guys.

It's really not that complicated. It really isn't. Okay, just make sure whoever size and your equipment understands that you use an r4 48. A refrigerant and they understand how to size the condensing unit accordingly, because oftentimes in the very beginning, people were over sizing equipment because they didn't understand how to size it with the glide.

Basically, okay, so again, I'm gon na post, Ralph's email, one more time. Okay, he will answer all the questions that you need or that you have about 448, a it's really, not that difficult, okay and then, when I was I'll, get to some more questions guys here in a second, but when I was talking to Ralph today, he had A really good idea, so I was just asking him questions about 448 a - and he mentioned to me that he wanted me to give away some Honeywell swag that he has okay. So he has some like tumbler cups kind of like they're, not Yeti cups, but they're. Similar they say Honeywell on him, and then he has some beanies that say Honeywell on them too.

So what I'm gon na do is I'm gon na have night Bob pick a couple: different winners right now: we're gon na start with the beanies I'm gon na pick. Three people, I'm gon na, give away three beanies and then Ralph's gon na send them to you guys. So what I need you to do is if the knight mob takes your name. I need you guys to send me an email, okay, I'm not gon na.

Seek you guys out so my email address is posted a million times in here, I'm gon na type it right now. Okay again, I got a stare at the thing because I don't know how to type even though I went through Jose can actually know. I'm not gon na explain that. I'm not smart enough to explain that properly on here right now, so gmail.com, okay, so HVAC our videos at gmail.com.
This is my email right now. So if I, if nightbot post your name in here right now, it's just gon na do it off of the chat. So those of you that are in here right now active in the chat, you're gon na be entered to win. So when I pick your guys's name, I'm gon na pick three people for beanies and three people for cups.

You guys got to send me an email. Send me an email say you want it, and then I will get your contact information and forward it to Ralph and Ralph's gon na send them out to you guys. This is open to the United States and Canada. So those of you that in Canada can win.

Okay Ralph said he'll ship up there or in the United States. So anybody that's not in the United States and Canada. Sorry guys, alright, so I'm gon na go ahead and have the night bought pick. You guys his name's real, quick.

So hang on just a second! Let me pull this up alright, so those of you there chatting right now there's about thirty two eligible users. If you guys want to be entered into this, go ahead and start chatting right now I'll give you a couple seconds to start chatting and I'm gon na give it a couple seconds. I'm gon na give it. You know thirty seconds or something like that, and I'm gon na go ahead and pick a random winner.

I'm gon na pick three winners, we're gon na have three beanies and then I'll pick three winners and we're gon na have the three cups. Okay, so the first one right now is Dave Johnson, Ola, okay, you're one of the winners. You get a beanie, so send me an email, I'm gon na. Do it again AG maintenance and repair.

You got a B, you got a beanie go ahead and send me an email, Richard SR. Oh, you got a beanie. Send me an email, okay, we're gon na do three more right. Now for the the cups, okay, the the tumbler cups, Michael Servetus or civets.

You got a cup the connected Ltd. You got a cup, you guys got to send me an email, okay and Brayan Guzman. You got a cup okay, so that's it. We got three cups and three beanies okay, so that is it.

You guys send me an email. That's it two HVAC our videos at gmail.com, gmail.com and thanks to Ralph for giving the cups, okay and the beanies. I was really cool with him again. I didn't ask him to he: just sent it okay, all right! So that's it! You guys got to send me.

The emails okay cuz, I'm not gon na - remember I'm not gon na go through all the headaches of that. Alright, so I'm gon na go ahead and let the chat calm down. I'm gon na answer. Another question here: real quick! This is a really important one, and I want to address this.

Okay um, I'm not gon na, say the guy's name, I'm just gon na call you anonymous! Okay, just because I don't want to single you out so anonymous sent me an email and here's the situation. He worked for an auto manufacturer; they basically laid him off. They sent the company to Mexico or another country to you, know basically outsource the stuff and he got a government subsidized education to get into the HVAC program, but he's been working for a company again, I'm paraphrasing. Okay, I apologize if I'm butchering your email, but he's been working for a company for a year or two something like that, and he just feels like he's going nowhere and the company's not giving him a shot.
Basically, okay he's definitely older. He said I think he might have said he was in his upper 40s. I think as what he said, and he just feels like you know, nobody's giving him a shot, he's applied at other places and nobody will give him a shot. He thinks it's because of his age, okay, and he just had he wanted to know.

If I had any thoughts on this, if I had any ideas as to what was going on so first off, I know that our trade needs people in our trade right now. We need people, we are short on technicians, okay, at the same time, we have an influx of people like you that have been you know: they've lost their jobs and they've had subsidized education, Zrii training programs and they've gotten into the trade at a later age. Okay, some people get into the trade really young and some people get into the trade a lot older, there's benefits to both okay, someone who's getting into the trade a lot older, they're, typically, don't have that young mentality they're not being stupid for the most part. You know they're not doing stupid things they're, they don't have the mimimi attitude.

Okay, not not everybody, but this is just you know a few of them. Okay, but then, at the same time, in your situation, you're a lot older. Okay, you know you, you probably don't move as fast okay, so I don't know your situation exactly all right. I don't know why companies aren't hiring you.

I don't know why. The company that you're working for is not giving you a shot, but the first thing that I'm gon na say with anybody that has a problem with their company. First off: here's how I do things: okay, I'm gon na, tell you how I would deal with it. I look in the mirror and I say what can I do to change this? What have I done to make this happen? Okay, I'm not saying that you're the problem, but that's how I approach things.

I look at it as I'm doing something wrong and I need to work hard to figure it out. Okay. So if you are older, you have a disadvantage because people are - and it's it's sad but I'm gon na be honest with you. People are gon na, look at you and they're gon na say: yeah, I'm gon na hire a 16 year old or a 17 year old over a 47 year old or whatever your age is.

Okay. People are gon na. Do that they're gon na discriminate like that. It sucks there's nothing, you could do about it.

It's it's life, it's gon na happen. There is you, you have worth okay, you are worth something and you can be an asset to someone. Okay, it's just getting them to give you a shot. What I would suggest in your situation first off is you have to be prepared for the job? Okay, whatever tools you need, you need them.
You got to do what you got to do to walk in the door, with the tools that you need. Okay, if you don't have the tools that you need all right, I don't know what your company provides, but if you don't have those tools, Chad. Thank you very much, but I really appreciate that super chat. Man.

If you don't have those tools, then you need to get them. You need to do whatever you need to do the way that I looked at it again. This was not the right mentality completely, but I'm just telling you how I did it. Tools came first for me: tools made me money, so my family got fed, but then I got tools and that was it okay.

I I had to have my tools all right. Very important, okay, cuz, if you don't have your tools, you can't work. The next thing you got to make yourself different from everybody else. Okay, I don't know what your your shape is me personally, I'm out of shape, I'm about 203 pounds, I'm about 510, I'm a little bit heavy.

I'm chubby! I guess you can say: okay, I'm not as active as I need to be and if I was to go knock on someone's door today versus me, knocking on someone's door when I was 17, they might think twice. Okay, I understand there's people that are bigger than me: there's people that are smaller than me, but I'm just giving you an example. Life happens when you get older and you do get bigger, and you have to work past that okay, I can't climb into some of the places that I used to climb into, and that would be a problem, especially if I went to go work for someone else. Now, as an employer, I got to look out for my best interests.

Okay, again, I don't know your situation, I'm thinking about it as an employer and I think about it from your employer standpoint and say you know you need to look in the mirror. You need to try to figure out what it is that you need to do to fix this problem. Okay, again, I don't know all your details, so I can't answer to everything, but that is my gut answer to your question. Okay is look in the mirror.

What can you do to solve this? Okay? How are you different than the guy next coming knocking on the door? Is he younger? Is he skinnier? Is he more eager? I don't know okay, but you got to look at that and you got to fix that. You know, I can't answer that for you, I don't know. If I really answered your question, I'm gon na call you anonymous again. Hopefully I did.

Hopefully I gave you can some some perspective if you, if you need some more context - and I hope I didn't offend you in any way I didn't mean to if I did - okay, you have some hurdles to overcome for those of you, they're older, that want to Get into the trade right now, I highly would suggest that you apply for stationary positions, because service companies that are active and driving around and climbing in attics and crawl spaces and stuff are gon na think twice about hiring older people that are bigger. Insurance rates are also another thing because I have to insure you. You cost me more money to insure than a 20 year old, okay in some ways, some ways not, but I mean that's life. You know we have to look at those numbers as as companies.
Okay, so you got to separate yourself from everybody else: only you can answer what's different and why they're not giving you a shot or why they're, not promoting you? Okay, so again, don't be offended, feel free to send me an email, HVAC, our videos at gmail.com. So we'll go from there all right. Let me see what else we got going on hello, mr. Ted, how you doing today bud all right, Zak.

True! Thank you very much man. I really appreciate it. Okay, yeah, be as problem-free is that you can to the office, be a yes man. That is true.

Okay, they definitely do. I really appreciate these super chat, guys you guys are awesome. Okay, so hopefully I answered that question. Let's see what else we got could lack of service for roughly two years caused a leak on a condenser elbow, coil lack of service.

I mean sure I guess one could argue that if your condenser coils dirty it's gon na be running higher pressures. Therefore, it's gon na be under more stress - I guess that's kind of a far shot, but I guess that could cause it. The other thing that can cause leaks on condensers - I don't know if you're talking about a residential or an air conditioning system, is ambient environments. Corrosive air dogs pissing on the condenser that kind of stuff people washing the condenser and not cleaning the condensers off those can cause leaks too, there's also cheap, copper.

You know that you can. You know that cheap copper from four years ago, or something like that that just had leaks all the time. I mean it's hard to say what causes the leak for sure unless I'm there and seeing what you have to deal with. So hopefully I wasn't too hard on that person that uh that asked me that question guys.

Let me know in the chat, if you think I was so have I worked on any compressors with PvE oil. Yes, I have some some of the carrier. Compressors have PvE oil in them, the the Danfoss compressors had PvE oil and with r22 I mean I really don't have anything bad to say about it. So, let's see what else, let's see I'll give you another super chat, if you just pronounce my name correctly, just once Zak true, Oh true, Oh or is it there's no way? Your name is zak Truax, it's true! Oh right, trou, maybe trou.

I bet you, your name is trou. Your name looks like French. Is that I don't know what it is Zak. Is it French Zak, trou yeah.

I don't know man, I'm curious, all right. All right! I'm gon na go to the next thing in here. Real, quick. Okay, let me see what else um okay, so question that I had about the video that I released today was the Health Department.
So obviously my thumbnail pointed out that the box was really dirty inside okay and then they said how do restaurants operate with their refrigerators? Being that dirty so true acts, that's really interesting: Zak Truax, huh, okay, that's a that's a very unique name! Is it French truex? Okay? Oh very interesting, you're? American! That's really interesting! Zak dude! You got to understand that your name looks French bro. That's very interesting man! Okay, um all right, so people ask about the health department guys. The health department in my area is a joke. Okay, the health department doesn't shut.

It's silly, I mean they'll shut someone down, but then they don't look. Okay. Their policy is not to open up ice machines. I it makes me laugh because on any given day, I can shut down any one of my restaurants if I grab the health inspector by the hand and just show them things.

But I don't obviously because I want to keep my job, but you know it's very interesting that the health department doesn't get their fingers in because they look they're supposed to be looking out for our best interest, but they don't open things. They don't look in things. They don't you know they just look at like cosmetic. They open the ice machine view doors.

You know, hey Reuben, they just open the ice machine view doors. Thank you very much Reuben. I really appreciate that, but you know, and they barely do anything it's you know. It's very interesting, so you know restaurants actually Higher Secondary audit companies to come in and audit them in between the Health Department.

The audit companies such as, like eco sure, ever clean, there's a couple other ones too. They are more strict than the health department. It's very interesting so another question that I constantly get on my thing: I get it from so many people is. Why do we plumb our drains on our air-conditioning units into the building and why don't we just drain them on the roof? Okay, you got to understand something number one.

I live in California, where the biggest hippie state - okay, we're all eco-friendly whatever, I'm, not judging anybody, if you're all eco-friendly hippie, whatever and mumbo jumbo okay, environmentally conscious whatever, and we pass laws like crazy before we even think about them. Okay, but the whole idea of us piping, condensate drains from air-conditioning units into the sewer and not draining them on the roof is because we don't want that condensate to run off the roof and get onto the street. And basically, we want to be able to treat it okay, but we also don't want it running onto the streets where people can slip and fall our drains all mainly run to the sewer, I'm sorry to the ocean, and they don't. You know we have sewers that clean, but then we also have like storm drains and we don't want the roof runoff running into the storm drains, we're supposed to have it running to the sewer where it can be treated before it goes to the ocean.
Okay, ironically, the storm drains are full of homeless people that do drugs. They piss they crap whatever inside the storm drains and that's running into the ocean and not being treated but anyways, we'll just let our state make these laws. That say, we have to take our condensate drainage from the roof instead of putting it down onto the roof. Basically, we got to run it into the sewers okay.

So it's a code violation. Basically, here in California, we have to have our drains running into the sewer. Where it can be treated before it goes to the ocean, basically, okay, we don't want it running onto the street where it gets into the storm drains and goes to the ocean before it's treated. Also, on another side, note: there's a lot of cities that don't allow us to have a coil cleaner, go down the drain and technically we're supposed to set up barriers and collect our coil cleaner and like soak it up and dispose of it properly.

We're not supposed to let it run down the drains, it's a whole, weird thing so Zak. Thank you very much man. I really that super Chad dude, I don't know HVAC rookie about a 2l refrigerant, going to be a replacement for 600 or 290. I honestly don't know: okay, that might be a question to send a Ralph Honeywell.

He might be able to answer that a little bit for you. Okay, let me see yeah. California is crazy, guys. Another thing to in talking to Ralph today about the r4 48, a refrigerators there's over 20 states that are adopting new laws, just like California, where they're gon na ban 404 a refrigerant, basically okay, so you guys are all gon na eventually have to start changing over To the different replacement refrigerants for 404, a again Ralph can tell you guys all those states and different things send him an email, he'll answer that one he sent me again, so many PDFs that basically have so much information, but there's over 20 states, including Puerto Rico.

I believe that entered into the agreement to start getting rid of those refrigerants so storm Donald. Thank you very much man. I really appreciate that super chat bud. That's awesome! You guys are.

These are awesome man again. These super Jets are cool. Why do you art to use have their evaporators before the fan, as opposed to after HVAC kid before the fan, as opposed to after I've seen some arts used with evaporators after the fan to I've seen in both ways the ones that had evaporators after the fan? Like there's some old Lennox packaged units that had the evaporators and basically after the fan is, we would have condensate blow off like crazy. That was a big issue as far as why we have them.

I don't know we typically run negative air pressure on our on our drain. Pans. Yeah, that's a good question. I don't know that one idea, but I just know that when we had the evaporator after we had a lot of condensate blow off, that was an issue for sure.
So, let's see what else yeah see chad has seen in Santa Monica at a restaurant yeah Santa Monica is a very liberal City and yeah. They won't lay use coil cleaner on the roof at all, so yeah. Definitely what was my most challenging service call Carlos. You know I thought about that one, I kind of going back and forth between a couple stories about my most challenging service call and it's kind of hard, because you know what was my most challenging service call back then probably wouldn't be as challenging today.

Okay, but you know, I would say one of the most challenging service calls back then and again it would probably still be a difficult one. Today was a very old: it was a 20 year old, evaporator coil on a walk-in cooler and it was logged with oil from the compressor. I wasn't too smart. I didn't know a lot about how systems operated properly and diagnosing an oil logged evaporator con.

Thank you very much con Tran. I think I pronounced your name right there, but thank you very much for that super chat that was very nice. Okay, thank you guys. So diagnosing an oil logged evaporator on a walk-in cooler is a very difficult one and it kind of came down to.

I didn't understand what was going on and I'd pretty much changed every part. Besides the compressor because I knew the compressor was working and I diagnosed the evaporator and it was kind of a guess to be honest with you, and so I wouldn't say it was a fair service call. I got it right Mike. You know we ate a lot of parts.

Basically, we didn't charge the customer for a lot of stuff, but yeah the evaporator was logged with oil and it was creating a problem. So we had low evaporator performance, we had low suction pressure and you know in hindsight we had a semi hermetic compressor that had an oil sightglass. So I'm sure I could have just looked at that oil side glass and said: oh gee, it's low on oil, but back then I didn't look at that stuff. So again, it's kind of hard to say: what's the most challenging stuff, as opposed to today, oftentimes the most challenging service calls for me end up being calls where I go behind another company and I have to undo the mess that they created to diagnose the existing Problem, those are definitely interesting ones, whereas you know we find out that they put the wrong refrigerant in the system.

It's got mixed refrigerants all to find out that the reason why they did everything they overcharged the unit. All this different stuff was because it had a plugged up metering device. You know so it's kind of hard for me to say one exact service call, but there's definitely been a couple. So all right, let's see what else any good way to clean a hoshizaki, condenser coil, where the fan blows through the coil instead of pulling air through it, the dirt and grease collects on the inside between the coil and the fans.
I know exactly what you're talking about Robbie G first off, that is a self-contained Hoshizaki ice machine. The fan is yet it pulls across the fan blows through. The coil then blows out the back. Okay, those ones are very difficult to clean.

The easiest way to do that is to pull the fan. Motor and fan blade out, take all the ice out of the bin because and then get coil cleaner on there and clean it. It is gon na drip down into the bin, even though it's in the compressor section, because it just will so definitely remove all the ice from the bin and ice machine cleaner and then get those stupid little filters. They keep on the front of the Hoshizaki.


5 thoughts on “Hvacr videos q and a livestream 11/11/19”
  1. Avataaar/Circle Created with python_avatars QE Elevators 2 says:

    This was on my 10th Birthday

  2. Avataaar/Circle Created with python_avatars Jonathan Burnside says:

    Hey Chris what screw driver are you using in your latest video while changing the contactor . It seemed like it had a built in torque setting . Thanks for all the vids helped me so much through my apprenticeship so far . Cheers Service area Barrhaven??

  3. Avataaar/Circle Created with python_avatars Justin Canterbury says:

    Appreciate the time and patience you put into this for us!!! Keep up the good work

  4. Avataaar/Circle Created with python_avatars Ed says:

    What I herd was the guy was cleaning the floor with one chemical and the second chemical tipped over onto the floor causing the problem. He ran out the manager came in to see what the smell was and started using a squegee to push it down the drain. terrible.

  5. Avataaar/Circle Created with python_avatars HVAC with Greg says:

    Hi Chris.

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