Hey there, everybody how's everybody doing tonight just trying to let everybody file in let's what I typically try to do is run the music for a minute and let everybody file in a couple things to talk about tonight and then a couple questions to answer. If you guys follow my social media, we had some interesting stuff that I had posted today that I'll talk about here in a little while so gon na be coming up soon. Let me go ahead and fix my screen, so I'm not staring at myself. It's kind of distracting, seeing myself on the YouTube screen.

Alright, there we go alright, so we what I want to start talking about. I had a couple questions in the chat and, if you guys don't already know for those of you that are watching right now, I post videos, Mondays and Fridays, and I get questions all week and I try to get to some of them, but the other ones. I try to answer in these live streams. Okay, I do these live streams, Mondays at 5:00 p.m.

Pacific time typically every week, unless something else happens, so these are pretty consistent. So one of the questions that I got and it was a little difficult to type it out - was and it's a simple one, but it's about service valves service valves on a system when they're operating so, for instance, I'm talking about a liquid line receiver. That has a king belt on it, and the question was: what is front seated, what is mid seated? What is back seated, okay, this is pretty basic for those of you guys that already know you know about it, but I'm just gon na cover it, because it's a good refresher, okay, you know you don't need to be like crazy, technical, but technically the valve on The outlet of the receiver is called the king valve, okay. Technically, if there is a valve on the inlet of the receiver, that is called the Queen valve okay, it's very rare that you see those Queen valves unless you're on a big big system.

Okay, the purpose of the king valve is to shut off the refrigerant flow coming out of the receiver. Okay, and then you typically want to let the compressor keep pumping and it's to pump the system down for service. So if you need to change a liquid line, filter dryer, if you need to replace an evaporator, coil, TXV asil involved, anything downstream from the receiver, essentially is going to be accessible okay. So we call that pumping the system down all right now.

The typical operation of a king valve is when it's fully back: seated is normal operation and the quarter-inch service port has no pressure at it. Okay, if you mid seat the valve and or just crack the valve, that's what you're gon na do when you put your service gauges on it. So if you walk up to the system - and you go to put your high side gauge on the receiver, you're gon na take off the quarter-inch cap and there's gon na be no pressure there, you put your service gauges on there and then you crack the valve And or mid seat it and then all of a sudden, you're gon na have pressure at that. Now, if you front seat the valve, that's when you close the valve all the way down so you're pushing the valve all the way into the receiver, and that is gon na shut off the refrigerant flow coming out of the receiver.

So what is the liquid line? Going downstairs is eventually as the compressor pumps and pumps and pumps. It's gon na pump, all the refrigerant out of the system, and it's actually gon na start. You know the pressures gon na drop low and then your low-pressure control, if you have one, should cut the system off. It's very important that you pay attention to that, because sometimes systems that don't have low pressure controls, you want to make sure you shut it off because you typically don't want to run the compressor in a vacuum unless you're doing a valve test.

Okay, so you know that was just a quick question just about service valves. Okay. Another thing that I want to point out is it's very, very important that you don't, or I should say the only valves that you should be able to shut down completely or front-seat in a system when it is operating. Is the suction service valve and/or the king valve on the receiver? Okay, sometimes there's a valve after the receiver.

I guess you can technically still call that a king valve that one could be shut down too, but you never ever want to completely front seat. And/Or shut down a discharge service valve anything in the high pressure side of the system, because you can damage your compressor. Okay, it's important to understand that when you close or front-seat a valve on a receiver there. Theoretically, if the system was designed correctly, that's the hopes there is enough capacity in that storage vessel or that receiver and the condenser for all the refrigerant charge to be pumped into okay.

That's if everything is sized correctly. This is where you can get into trouble when you're adding winter charge to a system, especially if it's not sized right, where you're really gon na start to see. Some problems is on a system that the refrigerant has been retrofitted. We used to see this all the time when we retrofitted r12 systems, because one of the replacement gases was our 409 a it had a much higher pressure and we always had problems with the refrigerant charge, because the system was never had the right amount of capacity Or storage capacity to hold the total charge when we converted the gas over.

So it's very important to understand that and we're gon na start running into that problem. A lot more now, as we start using refrigeration alternative refrigerants for r22 in refrigeration systems, because if we change to some of those alternative refrigerants, sometimes you know the we can run into problems with the amount of capacity or storage capacity that the system has for that. Refrigerant, okay, so it's very important to understand that you know one of the things that I've always brought up to my technicians is is even if you're pumping a system down, you always want to have the high side gage on there somewhere, preferably and again. This is going to get kind of technical, but sometimes, let's say we're getting rid of a condensing unit and we're gon na recover the charge once we get it off the roof.

So what we would do potentially is we would pump all the refrigerant into the receiver, but depending on, if we put our service gage on the quarter, inch access fitting on the king valve on that receiver. We might not be able to take it off because once a king valve is fully front seated that quarter inch port is always going to have pressure at it. So it's very important to understand that. Okay, so if you are doing a system for like pump down that you're gon na you know take off or you know you want to take your service gauges off, you may want to find a different place to access the high side pressure in that system.

Another quick thing is on some of the older Kolpak condensing units. They had a funky receiver on there that that quarter-inch service port was on the wrong side of the the valve. So when you would front seat the the receiver valve or the king valve, the the quarter inch port on that that king valve basically would lose pressure with the low side of the system. Okay, I know I'm getting kind of technical.

It's one of those things. You kind of have to see that it'll irritate the heck out of you, but you always want to make sure that you have your highside and low-side gauges on a system when you are pumping it down. So that way, you know the way that you're going to tell if the system is overcharged is especially in the summertime you'll see it really fast is as you're pumping it down that high side pressure is gon na start rising and rising so fast that you, you Know something's gon na happen. If you, if you're pumping down a system and the high side pressure, is rising more than 400 psi, you may want to stop and think about it before you go any further, because you could potentially damage something - and you know so - we're not gon na go too Far into that, okay, if you that's pretty much, that's all I got to say about the valves, okay, that was just kind of answering that question.

Yes, I do see it in the chat right now do not. You need to be very, very careful, especially when you deal with the residential systems about pumping them down on a residential system. It doesn't have a receiver, but a lot of times on the old tube and fan coils. There was enough capacity or storage capacity in that condenser to store all the refrigerant charge.

So a lot of times you could basically close down the liquid line service valve, which technically it's not a king Bell, but I mean you could call it a king dog, I guess, but the liquid line service valve coming out of the condenser. You can close that down and the refrigerant charge would back up into the condenser, and this is on a residential split system. Okay, but there's been a lot of problems with that on micro channel condensers. So you want to be very, very careful about pumping down anything with a micro channel condenser, it's very, very easy to overcharge a refrigeration micro channel condenser, okay, for instance, on a heat craft condensing unit that has got a head master or head pressure control valve the Winter charge, depending on the size of the valve, might be less than a pound versus if it was a to Banff in a copper tube with aluminum fin condenser coil a lot of times.

The winter charge would be sometimes four to six pounds, depending on how bad? How big the condenser is, so it's very very easy to overcharge anything with a microchannel condenser, so you want to be very cautious about pumping down a microchannel condenser. Make sure that your high side port is always on a place. That's gon na have full high side pressure as you're pumping the system down and you're monitoring it as it's pumping down okay, you're gon na watch for the pressures in the system. I have seen some crazy pictures and heard about some crazy things about micro channel condensers.

Blowing up and shrapnel going places because of the pressure in the system so be very, very cautious about pumping down a microchannel condenser. On another note, as I mentioned, the head pressure control valve on a microchannel condenser, it's also very interesting, because the charging of a microchannel condenser with a head pressure control valve is also very different, because you cannot follow the spoil in 90-30. One method when you have a microchannel condenser, so that's a whole nother thing in that situation. You'd want to lean on the manufacturers to find out what the proper winter charge is.

And/Or use the alternative method of filling the system up with the maximum amount of refrigerant, which is typically 80 percent of the receiver pumped down, essentially, okay, so or 3/4 of the receivers. Usually, what I go with I've mentioned that a million times I know it's controversial and all that good stuff, but I've even had heat craft telling me when I'm installing a new walk-in condensing unit that has a microchannel condenser I've called tech, support and said: hey. How do I know how much extra gas to add to the system - and he said basically, they have a published maximum amount or maximum pumped down capacity on that system, and he craft has told me you just add the maximum amount of pump down capacity, and that's Your full charge on that system. Ok, so you know that's food for thought on that one, so just be cautious.

Ok, I'm gon na go into the chat here in a few minutes, guys and start answering some questions. If you, if the chat, gets really long, and we start seeing a lot of questions, you guys may need to repeat them depending on how hard okay, Joel monegros, you said, would it be good if I can have an illustration or a picture a drawing of what I'm talking about that would be awesome if I was more prepared, I'm a horrible person at preparing for these live streams. So one of these days, I'll get my stuff together and I will have a good stream for you guys where I have pictures and links and all that good stuff, okay, but what I will do is I will try to make a video on it. I don't know if I'll make a full youtube video on it.

I might just release something on one of my social media channels, which would be Facebook and or Instagram look up HVAC our videos. You can't miss me. Okay, I'm on all of them. So before we get too far into this, I want to point out - or I mentioned something last week - okay, I am part of an RSES chapter here in Southern California, it's called the arrowhead chapter and I want to plug an event.

We're gon na have this Saturday for anybody. That's local here in Southern California. The event is gon na be at San Bernardino Valley College and mr. Eugene's silverstein he's the author of many air conditioning books.

The rack manual he's written tons of em, okay. He he does stuff with ESCO he's a great HVAC, mind. Okay, he is gon na, be teaching an air balance class. This is gon na, be a full day.

Seminar from 7 a.m. to like 5:00 p.m. we're gon na have lunch provided and everything. It's not a free class.

Normally with our SES, we do have free classes, but because we're providing food and and a place to have it out, we do have to charge for it. I would like to point out if anybody is interested you're more than welcome what I would suggest you do is go to our SES arrowhead com. Okay, I will post a link in the chat right now. Let me pull it up and if anybody that is interested we'd love to have you we're gon na, have a it's gon na, be a big big full day for us.

So let me pull it up here and I will post a link in the chat for those of you guys coming up right here. This is a link that goes directly to the sign up age. Okay for the winter conference we're gon na have okay and again, it's gon na be mr. eugene silverstein and he is going to be talking presenting a class on air balance.

Okay should be a great class. We, like I said it's a full day seminar. So that's it for my plug. Okay, I'd really like to have you guys there if anybody's in local, come on by for more information, you guys can email me at HVAC our videos at gmail.com, and I can also get you some more information.

Ok, all right! Another thing I want to point out: I've got like my notes right here. I always mentioned to you guys. I got like a whole list of notes that I like to try to remember to cover everything I want to say. Thank you guys very much again.

I'm blown away by your guys's support the encouragement you guys have given me that for those of you that have subscribed to my channel on YouTube, I really appreciate it again. I know I've talked about this previously, but I never expected it to do what it's doing. Ok, the way that it's been growing is just blowing my mind and the support I've been getting from you guys. Thank you guys very, very much.

Ok, because of you guys. My channel has already passed sixteen thousand subscribers and it's pushing sixteen five. I think or something like that. Okay, so again, thank you guys so very much, I'm very humbled by that.

Like I always say, I'm just trying to share the little bit of knowledge that I have in the small little niche that I work in. Okay and you know I'm just blown away by your guys's support and the comments. And you know the views and everything that you've been given me. So thank you guys so very much.

Okay, let's go through my list here, see what else I have on here. Okay, cool! That's pretty much it! I want to cover on that. Okay, let me go through the chat and see what you guys have got in here. See if you guys have have any questions for me if you do go ahead and throw them in right now and we'll go ahead and answer some of these guys here.

Let me turn this off. Okay, there we go yeah, I see multiple people were saying: do not attempt to pump down a microchannel. Yes on a residential micro channel. You want to be very, very careful about trying to pump it down.

Okay - okay, I'm just going back up here through the chat to see what you all have to say. I want to talk about my my post from today here in a minute, but I just want to get to some of these questions before it gets too long. Hey there Rick how you doing man all right. Let's see, I see tsuki you're from Finland.

Thank you very much for coming in here man. I really appreciate it. It kind of blows my mind guys, because what you guys don't see is is the amount of emails and comments that I get on a daily basis from all around the world. It's such a trip to communicate with people and it blows me away, and you know people send me messages and other languages, and then I have to use Google Translate and it's just so cool to be able to communicate with people with the technology we have today.

I couldn't imagine trying to talk to someone in another language, but being that we have Google Translate, I can sit there and write a message to them and you know we can converse back and forth and that's so cool to be able to do that. So, okay, so juxtapose, you said: what does the force defrost mode on your home refrigerator do? Well, it would force a defrost mode. I would assume okay, you know you want to be very cautious about the the residential refrigerators because they have a lot of tech built into them, even though sometimes they don't seem like they do. Sometimes they have all kinds of little user menus that you can get into depending on how advanced your refrigerator is.

So you want to be cautious about messing with some of that stuff. You don't want to mess it up too bad. Okay, I'm sure you know I'm not a residential person per se, so I can't really say what refrigerator you have and what it's doing. Okay.

But I would imagine that a forced, defrost button would basically force the unit into a defrost okay, because normally your refrigerator should go into a timed defrost every couple hours it should defrost, or something like that, so I'm assuming force would mean it would push it into A defrost to manually defrost it okay, all right. Let's go down here, I'm just kind of reading, yeah, exactly okay, so going down here, seeing what I'm missing out. Okay, I think I'm not missing too much here. You know for those of you guys like, for instance, Kevin.

You said: you're, a college student, Sutter, computer engineering, I've been getting an interesting influx, a YouTube has changed their algorithm. I think I mentioned this last week and I've been getting an influx of people that have nothing to do with this trade that are watching the videos and it's kind of interesting to see. Like some people, you know, quite a few people have said wow. This is interesting and they continue to comment and watch the videos, even though they have nothing to do with HVAC.

You know, and they don't ever have any intentions of doing it. So that's a whole YouTube thing. They've been messing with that. I actually read an article to where YouTube says that they made a mistake in doing that and they're trying to fix that.

Okay, I'm trying to read the name, it's nasty Nast that 2017. You said what are my thoughts and experience on our 22 and peoe. Our 22 works fine with p OE. So you said you have a large McQuay unit with a set up and you've been going through two semi-hermetic s --.

I i would think that you've got some problems going on there with your compressors or something or the oil return on the compressors or the oil pumps or something something's going on there. But you shouldn't have a problem with POA in our 22. That's a very common thing, you know, but i don't want to speak. I don't work on the big stuff, so i don't work on any McQuade, chillers or or anything like that.

So i want to be cautious about saying it works. Fine, i'm a you know on the light commercial, commercial, refrigeration side, i don't have any problems with the oil return with p OE and our 22. So i want to be cautious about answering that one okay, you may want to do some research but as far as I know, there's no problems on the big stuff too, but I could be completely wrong about that. So don't take my word on that one.

So, okay, thanks so much Andrew okay going down in here and seeing what else I'm missing and then I want to talk about some stuff that I posted on social media today. Okay, now, okay, Joe Stinson, this was like something we covered last week, but is a headmaster in a fan cycle? Okay, together, yes, a headmaster in a fan cycle control is okay to use together. I'm not a huge fan of fan cycle controls myself in refrigeration, but there is a need for him, especially when you get into the really really cool climates. So you know they will have a headmaster or head pressure control valve that bypasses the condenser ourf and/or floods.

The condenser to increase the head pressure on the system and then the fan cycle control can be on there also to help, especially when you're working with ice machines. It's very important that, typically, you have them both, because we need that hot discharge - gas, typically and/or cool vapor off the top of the receiver to defrost the ice. So headmasters and fan cycles work fine together. Now, I'm in Southern California.

We don't really have a need unless we're working on an ice machine to have a headmaster in a fan cycle control on a typical refrigeration system, I'm not talking supermarket stuff, I'm talking light commercial. You know walk-in, coolers and freezers and stuff like that. So I typically don't field modify a system, so I'm not gon na take out a fan cycle control out of an engineered system unless there's something that's wrong. Okay, but you know, if I had my choice, I would just have a headmaster, and/or, head pressure, control valve versus a fan cycle control at all.

Okay. I also feel that if you are gon na use fan cycle controls, especially if you have multiple condensers or condenser fan motors - that they need to be staged, you don't want to be turning all your fan motors off at once. You want to stage them. If you have three fan motors, you want all three of them, typically to turn off at a different pressure.

So that way, it's a little smoother on the system and you know see what I mean if you ever work on a system that has a fan cycle control, especially if it only has one condenser condenser fan motor. I should say it's really rough okay and when that thing shuts off you're, it's it's just hard on the system and you, if you watch your sight, glass you'll, see what I mean it's just. It's really really rough. The way that the liquid changes and yeah it's just a pain in the butt okay, so okay yeah, I would like Alexander, pointed out he's saying: racks: have oil trouble a lot, I'm assuming you mean with the r22 and the PIO II? That's why I want to be cautious, I'm not a super market person, so I want to be cautious about the big system, so you may want to lean on one of the big refrigeration, guys that do that there's a lot of them that are active on social Media, if you go over to HVAC our school brian ors, Facebook page, you know there's lots of good guys on there that do the supermarket stuff and they can answer your questions a little bit more about using the POA with the big compressors and stuff.

So, okay, Eric deeds. You asked if I've ever worked with Fedders HVAC equipment. No I've heard about it, but I've never worked on it per se. So I don't think so.

At least okay. So someone said in here: primetime hates headmasters yeah. I do remember that conversation primetime, where you were saying you don't like him. I do remember that all right, okay, Walter ja, Gerardo part of me, if I butcher your name, you said: can you tell some info on our 290 okay? The important thing about our 290 is that it's just a refrigerant, don't stress anything about it.

Okay, there's some more procedures. You have to follow because it's a flammable refrigerant, but it's just a refrigerant, there's nothing special about it. It does the same thing that r22 134 404 ammonia and all those refrigerants, whether you like them or not. They all do the same thing.

Okay, our 290 is just a flammable refrigerant, so you have some safety procedures. You have to follow in your you when you're working with the system and there's some potential safety ramifications, things that can happen: okay, ie things catching on fire that kind of stuff, but as far as working with it, it's just another refrigerant. Okay. What I would suggest you do, our SCS is go to our SCS org.

They have a great training video on our 290. I put it in the chat right there there's other people too. You can go to true manufacturing. Delfield refrigerators go to any one of their websites.

They've got our 290 training. It's you know you got to use all new equipment. You can't use a recovery machine. You have to use a different leak detector.

You have to use different electrical fittings. Different fan motors, different compressors, everything has to be spark proof. Okay, so there's a lot of safety stuff, but there's nothing crazy, technical about it. Okay, if you follow proper refrigeration practices, there's nothing different about our to 90.

Okay, you'll be fine. It's just kind of scary. Everybody's getting scared: okay, okay, JYP HC. You say what is the proper way to check thermostats in a reach and refrigerator? Okay, so a reach-in refrigerator depends on what kind of a thermostat it is okay.

Is it a digital thermostat that has thermistors than what you would do? Is you would take the thermistors out of the evaporator coil on the air? You would dip them in ice water and then you'd call the manufacturer and find out the own value at 32 degrees. Okay, that's how you check a thermistor if you're working on a constant cutting temperature controller, you need to have some service gauges and since that's some thermometers in there, you need to make sure the charge is 100 % correct on a constant, cutting and or coil sensing Temperature controller, okay, they're very susceptible to even the slightest amount of an undercharge and/or. An overcharge is gon na affect a coil sensing temperature controller and the same thing goes for the digital ones too. So you know, as far as exactly how to check them.

You know. That's something you can send me an email on and we can talk a little bit more. Okay, HVAC our videos at gmail.com. I'm not gon na go into too much detail on this live stream right now, but we can definitely do that and I think I have some videos on coil sensing temperature controllers.

Just go back, look under the refrigeration, playlist and there'll be all kinds of stuff in there. The biggest thing I can say when you're, when you're working on reaching coolers walk-in coolers and all that stuff, is make sure that your your thermometers, your temperature sensing devices, are accurate and calibrated. So same thing goes with your digital gauges, using your temperature, clamps and different stuff. You need to make sure, before you put a liquid line, clamp on the liquid line and a suction line, clamp on the suction line that it's accurate.

You need to test it in ice water. You use some sort of a constant to verify the accuracy of that temperature sensing device: okay, whatever you're doing it with okay, that's the that's the biggest thing, because you can spend an hour going back and forth saying a temperature controller is bad on a reach-in when, In fact, your thermometer was four degrees off. It's very common so make sure that your your test instruments - I should call them - are accurate. First, okay, very important, okay, keep going down here, Andrew Hicks! Thank you for calming the fears.

Yeah, I mean don't get me wrong. I have my opinions on our 290 refrigerant, but it's just a refrigerant okay. So now, if you ask me, oh my gosh, I'm scared of getting hurt, I mean watch, you know just follow the proper procedures. I'll tell you that I made a video in on changing a compressor on an r2 90 system, and I pointed out some things that are kind of sketchy.

So if you follow manufacturers recommended requirements, are 290 systems. Typically, don't have service ports on them. When you go to work on it, so you have to add service ports, while it's under pressure. Okay, so typically use a pinch off tool.

You braised on a fitting with the pinch off tool on the other side and then on the other side. Of that pinch off tool is potentially our 290 ok flammable refrigerant. So you're pinched off tool is the only thing separating you from that gas. When you're brazing on your access fitting okay, then, when you're all done, if you're lucky you come up to a system, it doesn't have gas in it.

Then it's easy. You just put some nitrogen in it a little chaser of 404, whatever gas use, your electronic leak detector call it a day find the leak fix it move on. Okay. If it still has refrigerant in it, then you have to use a combustible gas leak detector, because the AR 290 is odorless.

It does not smell like anything. Okay, so you use a combustible gas leak. Detector. You look for the leak.

You you once you get a general area of it: you're gon na use soap bubbles just like normal you're gon na pinpoint the leak evacuate the system of all our 290, and when I say evacuate I mean you got to let the AR 290 out into atmosphere. You do not recover our 290 refrigerant through a recovery machine. Okay, unless you have an explosive explosive explosion, proof recovery machine - I don't even know if they exist. Yet.

Okay, I've heard that they do. You have to be in a safe space when you're venting that refrigerant. Okay, but it is perfectly legal from the EPA: it's it's completely legal, to vent a natural refrigerant into the atmosphere. So, if you're in a safe place, if you have a well ventilated area inside the building or if you have a long enough hose, you can run that hose outside and you just let the AR 290 out into the atmosphere once you've found your leak.

It's important. I know I said what I'm gon na do this, but here we on a tangent talking about it, but it's important that before you light your torches and start braising you as much as possible, you want to cut components out of the system. Okay, if you're gon na change a compress or if at all possible, you want to cut the compressor out versus on bracing or unsweet II, a discharge line okay, but it's not always practical all right before you braise any fittings back in. You want to purge the system with nitrogen, and then you want to have the system on a nitrogen purrs, while you're braising, also, okay, so just be cautious.

You just follow those steps. It's not that big of a deal, okay, just be cautious. So, okay, you said Joel, you said how does r22 in p OE oil for AC? It's perfect, there's nothing wrong with that. Okay, that's the way our 22 works fine and then, if you're gon na use an alternative refrigerant.

I highly suggest you change the system over to pol. I know some of you guys are okay with using uh with using alternative refrigerants. I myself, I'm not a big fan of it, so you know I put r22 back in the system if I am gon na use an alternative refrigerant. My personal choices is that I want the oil to be changed out too, and I'm probably gon na go with something like 407 see.

If we're working on an air conditioning system, I haven't used 407 C, yet I've been through the last two summers of this r22. Phase-Out and I've only used. I have used one alternative refrigerant that was our 427. A I've had mixed results with it.

I prefer to use our 22. That's my personal preference okay, but if I had to, I would probably go with 407 C or 427 a and I would change the oil over to p OE. That would be my personal preference. Okay, but p OE works fine with our 22.

That's a that's! A common thing, in fact, if you order a new r22 compressor today, it's going to come with pol in it. So alright, keep going down into here. Yep Alexander, said: old-school recovery in a bucket of water. Just make sure that you pull that hose out of the bucket of water before the the refrigerant charge is completely out because you don't want it to suck any of that stuff in there.

But I honestly wouldn't use a bucket of water. Alexander was just kidding, but I just let the stuff go. Yeah Ulysses says he really hasn't had too many problems with Head Master valves only the Ori valves. You know I I don't want to say.

I've had a lot of problems, Ulysses, what the Ori valves don't work with them a lot, because most of my stuff is the smaller like commercial stuff, so we're usually using the l, AC valves, which are just basically the normal head pressure control valve that everybody thinks Of kind of looks with a dome on the top, but but the Ori valves and yeah I really haven't, had much of a problem with them, but again I'm in a mild climate in Southern California. So you know it's freezing outside guys right now and it's probably 48 degrees and we're losing our stuff. Okay, we're losing our minds so that just shows you, okay, what we're in snow suits and parkas and all that fancy stuff. Okay, we're we're we're in our boots and our big jackets and all that stuff.

At least I don't have a boots, but you know everybody else in California does and they're driving their Tesla's okay. So if you guys follow my social media, something that I want to cover posted some stuff on social media today from this last week - and I had a couple service - calls: okay, if you don't follow my social media, look up, HVAC our videos on Instagram and Facebook. Okay, I posted on there a lot, or at least I'm getting to post more. So I had a carrier package unit that I had posted about.

I had a service call on Saturday, where I went up to the unit and the VFD dwell. The unit wasn't working. It was off on low pressure, it was turning on and off on low pressure and what I found was the indoor blower motor wasn't running. The system.

Has a VFD Drive. Variable frequency drive it's a two-speed system, so you know first stage it runs on low speed. Second stage at speeds up to high speed, so the indoor blower motor wasn't running. What I found was that I had three blown fuses for the VFD Drive.

The VFD drive has its own fuses after the main disconnect okay, so I had three blown fuses, which is kind of strange three blown fuses at once. You know so I pulled the VFD drive out, tested the motor tested everything to ground nothing. Okay. What tripped me out, though, is when I pulled the fuses.

I had three fuses on the unit. Two of them were 20 amps, and one of them was a 10 amp and that's not right. Okay, and this is for a 9 amp indoor, blower motor long story. Short, I get back there today.

I called carrier Technical Support and I've got well. I shouldn't say, carrier technical support. I called my local distributor, which is Sigler. Ok and Sigler has their own tech support.

So I got ahold of Sigler's carrier tech support all right and I'm talking to these guys and they're going back and forth with me. They called me back three four times to tell me that the system's supposed to have 30 amp fuses and I go 30 amp fuses. Why 30 and they said well, cuz, that's what the system says and I go that doesn't make sense. I have an identical unit right next to me that has 320 amp fuses and it's working fine.

I go so you're telling me that both of these units have the wrong fuses and he goes yeah they're supposed to be 30, and I go that I just don't buy that I have such a hard time putting 30 amp fuses in this system. Okay, when it has a 9 amp blower motor. I know the VFD drive Polson amps, but I don't think it pulls that many amps okay, it's still so I go back and forth with the guy I diagnosed a bad via VFD drive because I ended up replacing the fuses and I didn't blow the fuses again, But nothing's happening, I get no power lights on the VFD drive, so it's a bad drive, so I have to order another one on a sidenote. They told me that those VFD drives are like a month and a half to two months out because they've been ordering.

So many of them so that's comforting to know, but it kind of blew my mind and what I want to point out is. Is you guys can't just let text technical support? Think for you guys? Okay, the reason normally, I don't call them for something like this, but the reason why I called them is because the units under warranty, so I wanted to make sure I followed all their proper procedures to make sure that the warranty claim went smooth. So that's why I called them and then I wanted to point out and make sure that they noted in their system that the system has wrong fuses da da da da da. You know so that one kind of blew my mind.

You know - and I still don't quite agree with putting 30 amp fuses in there - I'd really like to see some documentation with my own eyes to see that that thing takes 30 amp fuses, and I and I questioned him too - I said, are you sure you're not Talking about the main fuses for the unit, he says no, these are just the fuses for the VFD drive and he's telling me - and I talked to you - know some guy and then I talked to his supervisor too, and both of them are saying 30 amp fuses, Which it doesn't make sense to me putting 30 amp fuses on a nine amp motor. It just blows my mind. You know because the unit already has 60 amp fuses on the main disconnect. It just doesn't make sense to me, but still it blew my mind.

The quality control that we had two 20s and a 10 in it, and then, if you guys, if any of you follow my social media, you saw that. I also posted today about another unit at that same restaurant that had a refrigerant leak on the factory braze joint from the factory, and they use like a soft solder like stay Silve, eight or something like that. So that was a pain to was having to fix a factory joint, and I had just sold the customer these units less than a year ago, it'll be a year in march, so i i've been the only person. That's ever worked on him, even at my company.

I'm the only person that's worked on these, so i know nobody else has been in here. Changing anything up just blows my mind that we ran into this problem. Man alexander, you got a hunch as to why it has the wrong fuses. Let me know if you think any of you guys have any input on that.

You guys run into this problem before yeah Travis, that's frustrating to me too, because the man you as I was talking to the manufacturer, they were telling me that I was gon na. Have to program those drives in the field after I get him, which sounds very frustrating to me. That didn't make sense to me so nordyne, elevators and fans, you said, is carrier better than Trane. Honestly, I don't think any of them is better than any of them.

They all have problems, probably for some ant peaks in some areas. Yeah, I guess that's a possibility Alexander I just I wish I wish that they would have a you know. Given me a reason, like you know, tech support just says: oh no, it takes 30s and I go why and he goes well because the paper says it does and it's like no, I want to know why, like there's got to be some detail as to why This thing's gon na take 30. You know yeah, we definitely.

Definitely we have brownouts all summer, so francisco Nate, you said: do I do HVAC installation on new construction? No, I don't. I don't do any installation work. Occasionally. I've done some commercial installation work, but I usually get bit and it's it usually doesn't work out too well for us working with general contractors, it's kind of a pain, I'm more of a service guy, so I do service and then retrofits of existing systems, so Chan, Chow, you said what usually goes wrong with VFDs.

Well, first off I'm dealing with light commercial, so I do a small VFD, so there's really not a whole ton of troubleshooting to the small ones other than making sure you have proper power. I would argue that in my area, because we have voltage, drops and spikes and brownouts and different stuff that I think a lot of our problems could be solved if we had better power conditioning coming into our buildings, meaning some kind of phase monitors with control systems That will shut things down if the voltage drops too low some something similar to like the little ICM linebacker chinggis ha's, and you know the things that monitor voltage, phase, monitors and different stuff, like that. I think if we put that stuff on more of our equipment, that that would be better and our systems would work a lot better, so yeah Eric deeds, all the fuses were factory. So, oh, that's interesting, geez, Salas, yeah, interesting man, hey fire alert how you doing man Francisco sorry bud yeah.

If I don't post a question, you just keep posting it guys cuz. I try to get to him. If anybody else has any new questions, let's go ahead and post him in. Let's talk about my my video that I posted on Friday wow that one got a lot of attention that quita therm evap efficiency, controller that I posted well.

A lot of people had a lot of questions about that and I hope you guys understood that that was my first time working with that system. So I hope that I expressed the frustration that I had the first night, because the first night that I went out there on, I think was a Saturday or Friday night, because I tried to troubleshoot that controller from the digital display and I've. Actually a few Lissa's. In here, I've already had the conversation with him about it, but that digital display on excuse me on that controller is very frustrating and it messes with my eyes and my eyes can't keep up with the scrolling marquee, especially with the green light.

I have actually since heard that that's why they changed. I don't know if you've heard this Ulysses, if you're still on here, I've since heard that that's why kita therm changed the color to blue was because people are having a hard time reading the green. I don't know if the blue would make it any easier for me to read but still frustrating, but so I had a key to therm evap efficiency controller and what that does. Is it basically makes it a smart, evaporator? Okay, it's a walk-in freezer.

It's got an electronic expansion valve, it has an evaporator sensor, a suction line temperature sensor, a pressure transducer and a returned air sensor, and essentially it controls. The electronic expansion valve opens and close it. I will say that I do notice once I got into the system with a computer, it was like night and day after accessing the. What do you want to call it? The the software inside the the controller with the computer? It changed my mind about those controllers and I actually liked them after doing that, but if you don't have access to that controller via a computer and/or, possibly your smartphone or something and yeah I I was that first night I was thinking this thing's got to go Because that was very, very frustrating, but it changed my mind when I was able to access it from a computer.

One of the questions that I got from a lot of people and again I'm not an expert on these controllers. Okay, because that was the first time I worked with it, but one of the questions I got from a lot of people was how what how do you access it? What webpage do you go to? Ok, so that controller, the system that I was working on? Okay, I had a direct connection to my controller, was not connected to a network at all, okay, so what I did was I logged in on my computer now I did use my web browser, but it didn't go to the internet per se. Okay, what I did was, I pointed my web browser to look up an IP address, which was the IP address of the controller. So essentially it was the address of the controller and I connected an Ethernet cable into my computer and then an Ethernet cable into the side of the controller, and I did have to have some help from Keita.

Therms tech support great guys on the phone. They helped me to figure out how to set my computer to a static IP and then point it to the IP address that I needed, and then I was able to access the landing page or the software on the controller. So there's nothing. I had to download on my computer.

There was nothing like that. Ok, it's different! If you're gon na use - or I shouldn't say I don't know if it's different yeah now with some of the new stuff, because I know you can access them from your smartphones and stuff like that. So but the system that I was working on, we just accessed an IP address and then you were able to see the controller's brain basically in the way that it was operating and you were able to give it commands you're able to see a graph with trending History - and it was really easy for me to figure out what the problem was once I could see that graph, ok and my like, I said in the video, if you haven't already watched, go and watch it, but my problem was was, I was having first off Had a refrigerant shortage, so I corrected that. But then I noticed it was defrosting way too much.

Ok and even after I came back the next day, it was still defrosting too much, and I found that we had some bad sensors, ok and then I actually did find a sensor that had a break in the jacket which my theory is. Is that moisture was getting in there and messing with the sensor? Ok, so once I changed the sensors out, you guys saw in the conclusion of the video. The defrost issue went away. Ok, I also changed some settings inside there because I don't think it was ever commissioned properly and there was like someone had it set up for a door switch, it didn't have one.

You know just had some some features that it was turned on, that it wasn't using so, but I do have to say I was very, very impressed with that Keita therm controller, once I had access to it via the computer or the IP address and being able To access it so another question that I got quite a few people saying is: oh my gosh, you shouldn't show the IP address on a video dah, dah dah, dah dah. Remember I had no network access on that system, so the only way that IP address and I've also been told to that that IP address, I'm not a computer smart person, but I was also told that it because it was like a 10-10 IP address that it. You couldn't access it from the internet. I don't know much about computers when it comes to that so, but very very cool control.

I thought it was a very interesting video. I'm glad that I was able to get that footage a lot of times when I go on these overtime service calls, I'm usually frustrated, and I typically don't pick up my camera to film. So I've been trying to make a better habit of that because that's when I usually see the weird calls is on these weird overtime calls. So so I've been trying to make a habit of doing that.

So, okay, Quentin Hana, you said: do I find Vogt ice machines? Frustrating I'll, be honest with you Quentin. It's probably been close to 10 years. Since I've worked on a Vogt ice machine, mine were older ones. I don't know what the new ones are like.

I would imagine they're still pretty much the same and it's just a big ice machine. There wasn't if you understood the control strategy of the Vogt ice machines. It really wasn't that big of a deal now, the ones that I was working on. They they didn't even have digital bin stats.

They were still mechanical bin stats that were just pressure, controls, essentially, okay, so those those those ones weren't too difficult. For me, they were pretty plain and simple. They were just a pain like if you ever had to change a compressor because they had Oh 6d, Carlisle, reciprocating, compressors and um. Big boys so usually took three people because it was in such tight quarters to get that out of the ice machine.

You know they were just big boys for those of you guys, don't know, vote ice machines are a industrial ice machine that they do make a couple models that go down in capacity where some restaurants that I used to deal with used to have them. I don't do work for them anymore, so, like Joe's Crab, Shack used to have vote ice machines and then El Torito rep Mexican restaurants used to have vote ice machines. They were really good at making a lot of ice really fast, so they made tube ice and then yeah. You could also make like a crush tube ice.

It had like a cut it will they were. They were pretty cool. They were kind of fascinating to work. On but they were just big giant compressors and you know big receivers and whatnot, so you know not not too difficult in my opinion, but those were older machines.

So, okay go in here real, quick and see what else. Okay, DJ sub air. You said what do I think of that system in terms of quality? How long have they been around so kita therm has been around for quite a while a lot of the big wigs that kita therm came from a lot of them may manufacturers. I was reading some BIOS on some of the people and some of the guys came from spore Lynn.

I don't know if this is true, but I also heard that some of the guys came from heat craft and had something to do with the beacon systems. It sounds plausible, but I don't know if that's true, but that's that's what I heard a long time ago, but they've been around, I would say, mainstream for what five to eight years. I think - and I could be wrong on that, but that's just my whereabouts of then they started out. They have some small controllers too.

You know for that. You can use them like reaching coolers and whatnot. I think their quality is pretty good. So far, but again that's the first one.

I've worked on so you know there's some other people in here that have worked with them a little bit more. I don't know if Ulysses can chime in on that about their quality. I mean it seemed to be pretty decent quality, the one that I worked on, but again that was the first time I've worked on the the walking efficiency controllers. So, okay, let's go up in here, um go up in here.

Someone is asking okay. So let me go back up in here. I see someone saying something about duck detectors, I'm trying to find the comment. I see I'm seeing some of your guys's comments.

Oh I'm trying to make sense of it right now. If someone had a question about ducky tectors, I wanted to post something post it again and I'll talk about it. I just don't know what I missed there there's a lot of stuff way back up in there. Don't want to get too lost in that.

So, okay cool, so yeah square root, you said tent and IP addresses are not network compatible, so that makes sense so yeah. Some people were mentioning the comments. Oh, my gosh, you shouldn't, show the IP address, but I mean even if even if it was a network IP address, it wasn't connected to the network. Okay, but again, I'm not a computer person.

So that's not my thing so Jeffrey Kubiak. You said what field piece wireless: should you get? Well, it depends on what you're going to do Jeffrey. I can say now officially that field piece has released their new estimate or not not released. They've announced their new SMAN manifold that will work with their wireless system.

If you're interested in a manifold, I would highly suggest that it will be coming out in March and or April there'll be more information. You know I can release you, you guys want to know some more about it. Send me an email, hvac, our videos at gmail.com, and ask me about the field peace, manifold and i can give you more information but um feel peace make some pretty high quality stuff. I like it there local to me so they've always been really good with warranty.

I usually just drive it down to them, but I have heard other people say they have decent warranty when it comes to nailing stuff. I've also heard people say that they have problems with warranty, so you know it's kind of a mixed bag there, but I have nothing but good things to say about field. Peace, okay, but I realize some of you guys are all far away. So, okay, that makes sense, I'm the square root: okay, cool yeah, total tech.

I definitely think you've app controllers are the future. Yes, they are the future of low temp and what's interesting, you know on that key to therm evap, you finish listing controller or smart controller. Okay, is you know I thought about turning off the demand defrost and I'm gon na be honest with you on the heat craft, qrc controllers, which is the quick response, controller, which is just a dumb down beacon system. I turn off demand defrost, because I've had nothing but problems, but I'll be honest with you once I was able to access the key to therm and see the information on my computer.

It was much easier to say. Oh, this is the problem. I think it's really easy on the quick response controller to not know exactly what's going on in the system, because I'm looking at a tiny display and I'm not seeing the big picture. Okay.

So it's difficult a little more difficult for you to diagnose a sensor or something like that or a configuration problem when you're just looking at the user interface on the controller, and/or circuit board itself.