And we should be live how's everybody doing today. You guys hear me in the chatter: okay, hey everybody all right, cool, so how's everybody doing I'm doing good thanks guys, all right! So today I just want to go over a quick little educational topic. Nothing crazy! Right! Now and then, after that, we're gon na do a giveaway for the Vito bag. Pardon my cheesy light right here.

Sorry, one of these days I'll get professional and start making this work a little bit better and be a little bit better at it, we'll see. So just the educational topic I want to talk about is I'm gon na click. This chat out of my face because I get distracted I'll turn it back on in a minute. So I just want to talk about p-traps on AC or RT.

U units! Even you know residential split systems, sure any of them. What the point of the p-trap is, why we need them and where we need them. Okay, I'll have a video coming out about it soon, just had one I just filmed one today, basically, because I had a service call on a water leak coming from AC unit, and I just thought it was the perfect topic. So I just want to kind of bring it up.

Okay for those that don't know, especially on packaged units, but even on residential split systems. That kind of stuff, too you've got a negative air pressure side of your system and a positive air pressure side of your system. Okay, let's just break it down that way. So your return, air stream typically is going to be in a negative air pressure.

Okay, because the blower motors typically pulling the air across - or you know, through the return air stream blowing it out the the into the supplier stream. Okay. So once it goes through the furnace and/or, you know through the blower motor or fan coil assembly or whatever you're going to be on a positive air side of the system. Okay, so when you have a let's just talk about like a carrier package unit, okay, so when you have a carrier package unit on the newer units - okay, this applies to typically the newer ones, there's no device in there that creates a p-trap inside the drain.

Pan. Okay, so the drain pan will do it typically just come right out the unit, and you know you'll, step out with a three-quarter inch water line, and that system requires that you put a p-trap on there and if you don't put a p-trap, what can happen is. Is you can actually suck air in through the drain, because it's on the negative air pressure side and you can prevent water from draining out of that unit? Okay, so what I had to do today was I had a system that the p-trap was constantly getting plugged up and it was because the the p-trap was too tight. Okay, so basically they came with a regular 3/4 inch, copper 90 and then they used a street 90.

I went right into that and that created the p-trap. So you know, the trap was only about 2 inches wide and what happens is it would just constantly get plugged up, because this unit would have lint or different things inside of it, and it would just become a restriction and it seems like we have to go And clean that drain, you know every 2 months or something like that it would just get plugged up. So what I did on that today was, I went ahead and made a bigger trap, but then, as I'll show you guys in the video excuse me, I added some vents to the system added a clean-out to it added some unions to it. So that way, I could easily take the the p-trap apart, but I just wanted to stress the importance of having a p-trap on there and knowing what is a vent and what is a clean-out okay, because on this particular drain I have a clean out on the The AC side of the p-trap, okay, or so the negative air pressure side of the p-trap and that's meant to be taken out to clean and then there's a cap that goes back in there now.

If someone leaves that cap out, then the AC is gon na pull that you know air in through there and not allow the unit to drain properly okay. So it's very important that we understand the difference in why we have P traps now in the very beginning, I said on newer carrier units because on some of the older carrier units and they used to have a big sticker on the side of them, they would Have like an internal trap that was built into the drain pan and that would you essentially did not have to trap that unit? Okay, it was funny, though, was a lot of times the stickers wore off, and then people wouldn't even know that you weren't supposed to put a trap and then they put another trap and then it'd be double trapped and you know just create a problem. So when it comes to like residential split systems, you know it's important to understand and know which side your evaporator coil is on. Is it on the negative air pressure side of the positive air pressure side, so my particular evaporator coil at my house, is on the positive air pressure side.

So my coil is sitting on top of my furnace and it's pulling from the bottom of the furnace. Through blowing it through the evaporator coil, so technically don't need a p-trap on mine because it's on the positive air pressure side, but you know always want to read your manufacturer's instructions and know when to put them and when not to put them and know. You know how everything works with those okay, so another great use of a p-trap on those systems depending on where it's draining is. You know like in a commercial setting, we might take a package unit and we might drain the you know the lines downstairs into a floor sink okay and sometimes I don't think I've ever seen.

One drained into a live sewage pipe, but you know sometimes on a on a floor sink. You know there may be smells coming out of that floor sink and you need to have enough of an air gap in between the drain line and the floor. Sink that p-trap can also help to prevent smells from coming up through the drain. You know and getting into the rtu unit.

Okay, because that p-traps going to constantly have that water in there and it's going to prevent the smell similar tile. The p-trap works on your sewage system at your house on your toilet, or you know all that different stuff. You know it's gon na, have I shouldn't say on your toilet, but on your drains and your sink and different things at your house. You know you have a p-trap on there to prevent the smells from coming up and then I also think that it's very important that when you're installing p-traps, especially on rtu units, you know on the roof, where you're going to be doing normal, preventative and says that You have proper vents on them to to allow it to drain properly and then, like you, guys, will see in the video that I'll release soon.

You know having proper clean outs and making it easier and easier for you to do a proper preventative maintenance. You know so it's very important, I think, to to think about that stuff. As I always do things I like to try and think about the next guy, so you know when I was making the drain today. You know I'm thinking of okay.

If I have to come back and work on this, this is what I want to do. This is how I want to have it and - or you know I just I just like to think about the next guy when I'm, when I'm piping things and doing different stuff. So, okay, not really a whole lot of educational there, but I just you know, thought it was important. I have gotten some questions about.

You know traps on systems and how that works. So I think you know, I think, there's a lot of misinformation out there. So I don't know, there's a lot of people on the chat right now. I don't know which, if you guys have been paying attention.

I know someone was in here earlier. That was part of the. There was a bunch of drama in the YouTube comments. There was a guy just being a dick, basically anyways, but uh.

You know I just kind of wanted to reiterate something, so the video that I released today I talk about a true cooler and immediately. What I find is is that the the evaporators iced up and if one of the first things that I said is I look up and I saw you know a pen, a 19 or temperature controller in the system, and I I mentioned that. That's part of the problem, and it is okay. So what happens on those regions? Medium temp, we're talking about right now, so just like a mediums have cooler.

The evaporator on reaching coolers has a bigger TD than an evaporator on a walk-in cooler, okay, but this does pertain to a walk-in cooler. Also, excuse me so typically on a reach-in cooler. What we're gon na see we're gon na see a temperature differential across that evaporator of you know about twenty to twenty-five degrees, so your evaporator temperature is typically going to be 20 to 25 degrees below the box temperature or the return air temperature. With that being said, if we are main are setting our temperature at you know, let's just say we're setting our cut in temperature of that reaching cooler at 39 degrees.

Okay, with that being said, that evaporator is going to get. You know 20 to 25 degrees below the box temp okay, so you have a 40 degree box and you subtract 25 degrees. Your evaporator is going to get down to 15 degrees and that's why we have the need for a defrost on reaching coolers, where I really like it is. When we have.

You know factory controls, coil sensing temperature controllers, because coil sensing temperature controllers have defrost built into their design. Okay, I brought this up before, but the the temperature controller essentially is embedded in the evaporator coil and it doesn't allow the box to turn back on until that temperature controller, which is you know in the evap sense, is that the box temp has gotten to. Let's just say: 39 degrees, okay, whatever it, whatever the design. Temp is on that thing versus using an air temperature controller that air temperature controller has no way of knowing when the box temp or when the evaporator is at 39 degrees.

Okay, so that's what I was trying to reiterate in the video - and I know there was a bunch of crap going on in the comments about someone saying that you know air temperature controllers can be installed on a reach-in cooler and they can work just fine. It is possible okay, but you do have to understand that when you have a high volume, restaurant they're opening and closing the doors constantly the that bar or that evaporator coil is gon na start to build up that frost, okay and that frost. If you are gon na put an air sensing temperature controller, what you need to do is you need to put a defrost clock on it: okay, but here's my theory: why go through all that trouble? Why not just put the factory control back in the box of $ 40 control that has a defrost built into it? Why not? Why not do that? Because then you don't have to worry about adding defrost, clocks and extra controls, and me you know I mean if it's, if it's just just put the manufacturers part back in okay, you guys can do whatever you want to you know, but I prefer to just go Back in with the OEM controls you alright, let's hope that stay back up. I don't know if I lost all you guys, there seem to have lost the stream for a few minutes there.

We should be live again. So hopefully let me click on this, and hopefully this is back up and running. Ok, you guys hearing me again: ok, yeah, sorry about the we lost the stream for a few minutes yeah. You should be getting better all right, sorry about that guys, okay, anyways! So, where I left off, you know sorry, the the regions and stuff you know with those constant cutting controls.

You know I prefer to go back in with the constant cutting control, so it is what it is. I like the way that they work. So you know I like to put the factory parts back in, but before we lose this stream again, let's go ahead and do this giveaway that I was talking about okay, so that way we at least get that part done, and it's on the recording so yeah Exactly I didn't want to give up the veto bag, so let me go ahead and pull up some information. You guys just bear with me for a minute and I'm gon na pull up the veto giveaway here and I will find the video I had all this stuff up.

Oh and my computer crashed, I lost it all. So give me one second here and there we go right there yeah, let's go ahead and pull this video up, and here we go so what we're going to do. I got two bags to give away. I give away the meter bag first control e and then you go ahead and share my screen, so you guys can see I'm just using a random comment.

Picker and share this right now share the screen. Okay, you got the screen share going up. Can you guys see the screen share? Okay, okay, alright! So what I'm going to do? Is I'm gon na go ahead and find the video hold 376 comments out of here? So what we're gon na do, like I said in the the email that I sent out and the Facebook thing that I sent out in the YouTube posts that I sent out. Whoever wins this is going to have 24 hours to either be in this live stream and or watch the the recap.

Video and contact me okay. So what you need to do, if you win, is you need to send me an email at hvac, our videos at gmail.com, we'll figure out how to to verify that it's you and then I will send the prize out to you. Okay, so we're gon na give away two bags tonight we got a veto and B bag. You guys see behind me and then we have the tech OT MC bag.

Okay, both of them are brand new bags and let's go ahead and generate a random comment. Right now, so what I'm going to do is go ahead and pick the first one right now, so this is going to be for the veto and B the small meter bag. This is gon na, be the first one right now. Okay, so I do not know how to pronounce your name: it's fel y PC, you're, the winner of the MB bag; okay, so you got 24 hours to contact me from today or from right now.

Okay, if I don't see the email from you or something like that, then we're going to roll this on to the next person and we'll give this bag away again. Okay, so I'm going to go ahead and generate a another comment or another winner right now. So let's go and pick another winner, and this is going to be for the tech, OT MC bag. Okay and there you go here.

It comes deaf HVAC, our SoCal you're, the winner of the tech ot MC bag. Okay, so let's make sure I'm gon na go over the rules again, congratulations to the winners and sorry for the losers, but you guys are losers, so you suck you know, I'm just kidding, send me an email within 24 hours of right now. Okay, if I don't get an email from either of the two winners, then you will I'll roll this pride over to the next person. Okay and we'll do this again so congrats to the winners and we will move on.

Let me go and turn my screen share off. Okay, so I play doing a lot more giveaways, guys all right. If you know I get more people working with me. I've been talking to a bunch of new vendors about sending me some stuff and we'll see.

Okay and we'll see about giving some more stuff away. Yeah. If you all email me, then you know, I don't know I'll figure it out. I know who the winners are, so we'll figure it all yeah.

Please don't all email me saying you're, the winner? Okay, I obviously, interestingly, you know I've never done a giveaway like this, and I did didn't expect this to be as difficult as it was. I didn't expect this many people to enter, and you know this one I'll I'll definitely figure out some kinks next time. Some people asked you know because after I, after I did this, I realized that I never made any rules and a bunch of people were entering. There was people from all over the world and I never said no, so I mean from this you know.

Basically, I'm gon na go ahead and ship it if any of those people aren't in the United States I'll go ahead and do what I got to do to ship it out. You know we may have rules doing something like that next time or something like that, but as it is the guys that won won and I'll make sure I get the stuff shipped and out or shipped out to him. So yeah you told your boss you're getting a new bag yeah I'll see. If I can get some more, you know, Vito Vito wanted to see what kind of numbers I can get on this, and you know I mean I think it went pretty good.

I think the video had 2082 views so far. I think Vito would be happy with that. So well, let's see maybe they'll send me some more stuff to review and give away. So you know they seem to be pretty cool when I asked them about giving them.

You know an extra bag for a giveaway and they were pretty cool with that. So no, I didn't talk to Roger directly. I talked to one of the reps or whatever one of the guys that works there. I know he works there, but I haven't talked to Roger so, okay rayray, I see you said you're coming in late.

I I already forgot who the winners were, but I can tell you that you weren't a winner, so the winners I'll have to watch in the in the recap or whatever, if they're, not in here so I'll watch in the recap or something like that. So all right um, another question that I got and I just wanted to cover real quick in. I think it was today. I don't know if you're in here not, but someone asked me about how I go about collecting from my customers.

This may not interest a lot of you guys, but I thought it was a pretty good question, so we're a commercial company and we deal with a lot of chain restaurants. My customers are pretty good at pain, but I will say that when you're dealing with commercial customers, sometimes your pay can be out in excess of 120 days. So it's one of those things that you guys just got to deal with, and sometimes you have to learn when to let things go most of the time I end up getting paid with commercial restaurants. That's why I like using Qamar working with commercial restaurants when you, when I tend to work with small mom-and-pop, sometimes they choose not to pay and then half the time.

It's a matter of. Do you want to lose money taking them to court, or do you want to just let it go and move on and let your life be stress-free, it's not something that you like to do letting money go, but sometimes it's just not uh. It's just not worth the fight. So again I just kind of wanted to bring that up.

It doesn't mean I didn't mean to bore you guys with that, but that was just a question that I had gotten so JYP Linh next time give away my old socks and my old shoes: do you guys want those or what no yeah the views stayed strong After the giveaway so we'll see all right, so do you guys have any uh any other questions that we want to talk about and stuff? We got a little bit of time. Let's go dad back up here to the comments here, real quick and see I'll see. I lost half the comments because of the dang computer crashing. So actually wasn't the computer crashing.

My internet died. Okay, I keep going through here soon. If I missing anything well, we have 135 viewers right now. That's really cool.

Just looking through the comments guys to see. If there's any more questions in here Joe sixty five, you need more than two videos a week. You know I was doing three videos a week. Chris II, you said you must have missed the shoutout.

Sorry I didn't shout you out yeah, but hey Chrissy yeah. I was doing three videos a week, but it was killing me over the summer. I did three videos a week and that was just driving me nuts. What I'm trying to do right now is do two videos, a week, Monday and Friday and then Letton, because there's a lot of other people on YouTube doing stuff too.

So I'm kind of trying to you know not crowd everything out there trying to put out good content. I don't want to just slime it out too much so yeah Alexander, you know I sometimes you know sometimes on the videos. You know when you're doing PM's and stuff like that, sometimes those are actually good times to do a video like, for instance. Today I was just I went out on a water leak coming from an AC, and I thought it was the perfect call to be able to show you know what negative air pressure does to a drain, and so you know sometimes it helps brian Milbourne.

You ask when you hear the condenser is flooding back, you're lost any tips when the condenser is flooding back, I'm assuming that they mean that you've got flood back on your suction line. Coming back to the condenser, I'm assuming I mean I would assume that you've got an expansion valve something's, going on with your expansion valve, that's possibly causing the system to flood back. It's kind of hard to know exactly what's going on without context of that question Brian, but you know I mean if you have a system, a refrigeration system where the the expansion valve is over feeding its oversized or there's a really heavy load in the Box. You know you could be flooding back refrigerant back to that compressor.

So you know I don't really have much more to add to that right now, but you know just understanding how an expansion valve works can really help out with that. So Byron, you asked if I go to allied refrigeration, the LA branch know I've been there once or twice before, but I stay in the Inland Empire. So when I go to Allied refrigeration, it's either the San Bernardino branch, the the Cathedral, City branch or the Pomona branch, those are the ones sometimes I'll go to the test and branch or the City of Industry branch. So, but for the most part, it's Pomona or San Bernardino, so Alexander you're, saying that there's our 290 ice machines, yeah there's a there's! There's a couple manufacturers out there doing our 290, so total tech.

You say at CSC refrigeration, Chris Cassie's, a great guy dude, and he puts up some good videos. Are you in here Chris? I might have seen you earlier. I don't know: okay, seven one, six appliance guy. What's my go-to for the smart probes right now, the field piece job link man hands down the best smart probes out there right now, unless testo comes out with some new bluetooth, I just I'm just not a fan of the test, Oh probes, unless they they fix.

The Bluetooth stuff and then the I manifold stuff, was my favorite, my absolute favorite, but when the when the field piece probes came out, the wireless temperature clamps, just kind of you know, made me make the switch. I still think that the I manifold has better range as far as the repeatability of their their temperature probes, and you know I mean the fact that you can repeat him and I've taken my i manifold stuff. You know on a two-story shopping mall and had parts in the air handlers and been able to you know strategically place them all the way downstairs and be able to get a signal all the way downstairs. So that was a plus.

It was kind of ridiculous. How many probes I had to put out there, but you know it did what it needed to so I still like the I manifold stuff, not a huge fan of the the app changes that they did, but you know it'll probably grow on me, but for the Price and for everything the field piece probes, are my favorite right now so Jose Montoya. Are you asking me if I'm a master HVAC are in Southern California? They do not require licenses like that. So to be, you have to have a contractor's license, but to be a service technician, there's no licensing or anything like that.

So I've been in the trade for 16 years officially and then I grew up working for my dad many years before. That am I the best. No, I'm always still learning every single day. It's just a process to always always learn so Paul dieter.

You work in San Bernadino off a Highland Avenue right on dude yeah. I used to do some work up in that area. A couple of chain restaurants, but I don't anymore up off of Highland, I should say so: oh I see you there, Chris hey man, sorry I'm just kind of going down through the comments here. What's my method for adding winter charge to a receiver, I like that topic, okay, first off what I'm gon na do, if at all possible you want to use if it's a tube and fin condenser, you want to use sport lens method, okay, the 90 30 one.

I believe is the the spoilin document. That's the best way, you're going to calculate the the total equivalent length of the pipe you're going to find out how much liquid you could fit inside of the pipe and then you're going to do a calculation you're gon na figure out the exact amount of refrigerant. You need to flood that condenser. The cool thing about the spoilin method is that you can.

You can calculate the amount, the exact amount needed for the lowest temperature that you'll have in your area? Okay, so here in Southern California, the absolute absolute lowest temperature I'm gon na get without going into our local mountains is about 32 degrees. That's the extreme low. So I can properly flood the condenser and calculate the charge for a 32 degree day and not have to put extra refrigerant in the system now with that being said, sometimes it's not practical to use the spoilin method. So what I will do is I've mentioned it before take a heat source pump.

The system down at the receivers king valve use that heat source make sure that it doesn't go above the soft plug temperature of that receiver or the pressure relief device. So, basically, you don't want to heat up the pressure relief device past like most of them on my small receivers, are like 430 degrees or something like that. So, whatever heat generating device, you're gon na use to heat that thing up, you want to make sure it doesn't get past that 400 degrees. Okay, then you're going to take that dot, that heat and you're gon na pass it up and down the receiver.

Two to three times and you're gon na feel the liquid level. Okay, if this is again, if you, if it's not practical or you can't use the spoilin method - which i think is the right way to do it, okay, so the theory behind using the heat source is, is that I'm gon na put the maximum amount of refrigerant. In that system, okay, so I'm gon na fill that receiver up 3/4 of the way you never want to fill it any higher than that. So that's what I will do in mojo Murphy.

Thank you for posting that that's the literature parker's Portland. They have lots of great information in there. Ok, so that's my method. If, for whatever reason, I can't use the spoilin method to calculate how much refrigerant the need the system needs to flood for the headmaster.

Okay, they had the head pressure control valve. I guess you can call it Headmaster's, a trademarked name that Alco used to use on their valves that they used to make so anyways, but a lot of us use them at a column head master, so so yeah. Hopefully that answers your question about the winter charge. For the systems, okay, so if I can't use spoil ends method, then I'll basically put the maximum amount of refrigerant enough.

Thank you very much. Total tech. I really appreciate it so yeah. If I can't do spoil ends method, then I'll just put the maximum amount of refrigerant in there and then and then just go with that.

Okay, okay, edward rushing, you said i need to join the hvac, our school team uh-huh with brian brian or yeah. I brian's got his own thing, going he's a good guy. I've done his podcast before and i've written some articles for him. So you know when the when the time comes for me to write another article or something like that for him I'll.

Do it Brian's giving me an open invite it's just a matter of me coming up with a good topic to talk about on his podcast, I'm gon na be honest with you, I'm probably not as tech savvy as some of the great great people that he has Coming on his podcast, so I'm more of a practical mechanic. I would consider myself, you know, I'm not like super super smart when it comes to a lot of the technical terms, and - and you know I mean don't get me wrong - I like going on Brian's podcast and writing articles for him, but I just sometimes don't feel Quite intelligent enough to write you know to fill some of the things that he's looking for on his stuff so but now great podcast great stuff. I love his stuff so keep on going, I'm on tech. You ask if suction accumulators, salt flood back to compressor.

Okay, a suction accumulator is a safety device there to help you if there's a flood back situation, but it doesn't solve a flood back situation. If you have a system, that's flooding back to the compressor. It's not just the compressor that we're worried about. Obviously, we don't want to damage the compressor, but if the the system is flooding back, there's other repercussions of that too.

Obviously, we don't wan na wash the oil out of the compressor. We don't want to cause problems. We don't want to ruin the valves if it's a reciprocating compressor, but you also have to remember that when you're flooding back you're filling that evaporator with with so much liquid refrigerant that it can't boil it off and your evaporator then becomes inefficient. Also so will an accumulator solve a flood back issue? No, it won't.

An accumulator will help to protect the compressor when you might have some flood back, but it's not there to solve the issue. Okay, so Gary black jr., you said: if you have a bad headmaster, you put a fan, cycling control, that's fine! You know, and some people like fan cycling controls, I'm not a huge fan of the fan. Cycling controls because I work on the smaller refrigeration stuff. Okay, so in my opinion - and this is my opinion - a fan cycle controls kind of rough on the system, especially if you only have one condenser fan motor okay, where I really like a fan.

Cycling controls. If you have two condenser fan motors, because then you can slowly stage the condenser fan motors and what you tend to notice. If you work on any systems where, like here in Southern California, we have mild weather right. So if we're working on an r22 system and the fan cycle controls set for 200 and 250, so it turns the cadets familar off at 200, but turns it back on at 250.

Well, what happens on a mild day? Let's say it's sixty five, fifty five degrees when you turn off that condenser fan motor, your head pressure, just slams high, really quick, because it's still mild outside okay and what you sent you tend to see is just a violent reaction within the system and you notice Just watching it operate that you're, you know once that condenser fan motor slams back on then the head pressure drops really quick and then it right really. It just goes back and forth back and forth. So I'm not a fan of fan cycles on small systems or single fan systems, but when you get into multi fan systems, I really think that uh that um the fan cycle controls are great okay, so but as far as bypassing the head master, like clipping the Tip on it temporarily or taking the head master out, yeah I've done that and throw a fan cycle control on there temporarily. Yeah done that I mean I'll, be honest with you.

I put a fan cycle control on a system too and just eliminated the head master, not my favorite thing to do, but you know that was what the customer wanted. So hopefully I'm not missing too much here. Someone asked if I went to the I hacky trade show and yes I did. I was there Paul dieter you asked.

Did I go to the HVAC convention in Pasadena that just passed? Yes, I did. We have a small convention out here, guys it's nothing like the big one that we have I'm trying to think of the what's the big conventions, name that was in Vegas last year or whatever anyways there's nothing like that, one. It's just in a small little convention center. We have here just in a single room and yes, I was there.

I was there for a couple hours just walking around talking to everybody. I really didn't get a whole lot from the convention itself more, so it was just a way for me to see people that I haven't seen in a while and interact with people so um just rust. Do I work with EPR and CPR valves and how do I just I'm gon na be honest with you. I really don't work with EPR Valve's, very much.

Okay, I do work with CPR valves, it's just a crankcase pressure regulator and epr valves and evaporator pressure regulator. The CPR valve is there basically just to limit the refrigerant coming back to the compressor. Typically, you use them on older systems, older compressors that you're trying to limp along. Sometimes you can put them on newer systems as a preventative measure to help you control the the refrigerant coming back to the compressor.

Okay, it just controls the amount of refrigerant or the pressure coming back on. A CPR valve will basically it'll help you when you have systems that have heavy swings. So let's say you have a walk-in box where they move product in and out consistently like they'll, clear, the whole box out. Sometimes you have warehouses and different things like that.

Where, though, they'll be clear and all product out and then bringing warm product in that's a place for a CPR valve and where it will really help you? Okay, because what it's doing is it's controlling the pressure coming back to the compressor and reducing essentially the the load, that's on the compressor. So what we would do on a CPR valve is, we would start the system up after we've installed it, and we would basically monitor the compressors rated run, load amps and then what it's actually performing at and you would set the compressor under a heavy load. A heavy box load coming back, you would, you would adjust or throttle down the CPR valve until the compressor is at essentially full load, amps, okay, and that's basically where you're gon na leave it. And then the theory is is that whenever it goes under a heavy load again, it's gon na hold back that refrigerant and slowly meter it through you know, depending on the setting of the valve okay, so and I'm sure someone could explain that a little bit better Than me, but okay, Gary black dua, DJ for the weekends and now, okay, I'm just kind of going down through here through the comments to see what else you guys are saying here, Harry I'm sorry I can't so sorry Clow.

I I'm sorry if I butchered your last name dude. You asked me if I work for my dad. Yes, I do we work together. Now we own the company together.

When did I get serious about HVAC and really start to understand the operation of a system? Okay, so I grew up working for my dad as a kid from basically probably 12 years old, on whenever the weekends my dad was always working, I would go to work with them whenever the summer I would work the whole summer with him on a sidenote. I remember working for $ 20 a day, that's what I was getting paid, probably when I was 12 years old, which for me back then was like amazing, because at the end of the summer you had like 250 bucks or something. You know me about 20 bucks. A day dude that was, I remember it, makes me laugh to think about that.

Sometimes I tell him he owes me some money but uh yeah. So when did I get serious about the trade I mean? I want to do not spoiling any secrets. I'm working on a podcast guys, so this is gon na actually be one of the episodes of the podcast is kind of covering what and how I came into the industry, but I'll explain a little bit right now. So yeah I officially started in 2002 is when I officially came to work full-time okay, a couple years after high school and when I first started doing this, I had a lot of questions.

I came into this like with every question in the world. How does this work? How does that work not do not want to discredit my dad, but my dad was an old school technician. Okay, he doesn't work really in the in the trade anymore. He he works in the office and you know we kind of split our roles, but very very smart dude taught me the the troubleshooting skills I have so I'm not talking crap about him, but he's just a technician that came from a different time.

So when I really came up and would really had all these questions, he didn't have the answers for me, okay and for a while I dealt with it. You know I always joke around with when I would ask a question. It was because I because that's the way it is that was the answer and again I'm not knocking him. It was just a different time.

Okay to this day, I mean he still doesn't really understand the way the super heat works and different things, but obviously he did all right and and and ran his business as long as he did before. You know I came into the mix okay, so I just want to make it clear me and him you know I'm not knocking him. Okay, he just came from a different time. You know different.

He was an old-school tech. Okay, so I didn't get the answers that I wanted from him, so I was really really eager to learn. I went to the local community college went to school there and kind of got the same thing. If I asked a question the teacher, would you know some of the teachers not not all of them, but some of them would just hand you a book and say the answers in there.

That's not what I was looking for either. I had a mentor that worked with us, one of the lead techs that we had working with us that that taught me a lot too. So I got a little bit from everywhere. I got it from school, got it from my dad, got it from my mentor that was working with me and but it still didn't, fill the the questions that I had started.

Reading a lot and one day it just clicked. Okay and that's what I try to tell people it's gon na happen for everybody. There's things that, especially when you're coming up and you're going to trade school like. Even if you don't understand it, just listen and let it sit in the back of your brain because one day, it's all gon na click and make sense to you, okay and and that's kind of just what happened to me.

I can't tell you that exact day, but it was just little bits at a time. You know I would hear everybody's wait. You know methods that they taught me and then you know, then I did some research and then just working in the field and then all of a sudden, it just clicked and then now I have even more of a of a thirst for knowledge. You know what was interesting, though, is that, when, when Brian or came about when he started coming on to the public, you know YouTube and doing his podcast and stuff.

That's when I realized wow, this guy has more of a thirst for knowledge than me, and you know I'm really impressed by Brian's thirst and in the way that you know I'm assuming that when he, when he questions something man that guy digs in and figures things Out more than I could ever even want to figure things out, it's crazy so but yeah I consider myself to be. You know just a person. That's really interested and loves to read things, and so hopefully I answered your question there, roundabout way: Ricky refrigeration, you have an Ori six valve that slams shut. As soon as you install the cap on the adjustment screw area, you have a leaking valve buddy, because I would imagine again I'm just talking out of my ass right now, but if you have a if it's slam shut as soon as you screw the cap on There what's happening is, is that I bet you if you, if you put soap bubbles on the end of that valve when it's when the caps off.

I bet you it's gon na be blown refrigerant out of there and you just don't realize it and then, when you put the cap on, it builds up pressure underneath there and it probably doesn't let it work right. Maybe I'm wrong, but look into that. I bet you that's what it is dude. I bet you the seat or whatever is leaking on that valve.

Okay, Rick. I see you answer the question about the CPR valves, yeah, okay, primetime yeah. I mean to each their own right, you don't like Headmaster's. I mean I do I'm gon na be honest with you, Headmaster's become very problematic, especially when proper refrigeration practices aren't followed.

I just did a I shouldn't say I did at my local RSES chapter, the arrowhead chapter here in San Bernardino, California, we had spoilin rep Tom Mitchell from spoilin Parker spoiling come out and talk about Headmaster's, and you know in just conversation with the students that were There after he presented, I raised the point, and he agreed with me that I would say you know I'm just guessing off the top of my head - that 90 % of the Headmaster's that fail either were misdiagnosed. And/Or failed because of proper refrigeration practices. Most of the time, a headmaster is going to get stuck in one position, because something is floating around in a system and messing up that that valve and or a headmaster might get warped or deformed, because someone's not prop not properly cooling that valve when they're braising. It in so I would say that, in my opinion, most Headmaster's, I shouldn't say most, but a lot of Headmaster's are misdiagnosed as being the problem when in fact there might be something else wrong, not saying that the headmaster wasn't bad, but I'm just saying that it Got stuck open because of this, or you know different things like that, so keep on going down here through their comments, try to catch up to what we got going on Brian or is a future legend.

Brian or already is a legend in the industry. Total tech he's an awesome, dude very nice guy too, very very nice guy, very approachable. You got a question: send that guy email, he'll answer your questions all day. Long he'll have conversations with you a very very nice guy yeah, exactly dude.

That's why rookie refrigeration! It's because the it's leaking by and when you put the cap on it, slams shut yeah. Okay, I kind of keep on going down here through here primetime. No, I really don't need headmasters, but you know anytime, you have a remote condenser on an ice machine. They need headmasters because we need that hot gas in harvest mode or the defrost of the ice machines.

So that's where head masters are 100 % needed, because we need that that head pressure and we need that hot gas, temperature and or cool vapor, depending on if you're, working on a Manitowoc, CVD machine, so head masters, are important on ice machines. If they're remote, they got to be their head masters and fan cycle controls for sure so um kind of going down through here, mojo Murphy. I do like doing restaurants and I don't do any cooking appliances. I would love to get chefs uh certified, but um the the cost kind of turned me off.

It's really not going to do anything for me, because I'm in this weird place right now, where I can't accept any more customers and I'm super busy with what I have so getting sepsis certified other than a certification and in which I'm going to say that any Certification is better than none. I totally agree in certification, so, but for the cost of a chef's, a certification, the study, materials and everything. It's just not feasible for me right now, because I'm not really gon na get much from it other than a you know. A certificate says: I'm certified.

You know but um. I totally agree in stuff, so certification for anybody that works in the restaurant industry. For sure, I think it's a great anything Nate certification cm from our SES, any of them. Okay, yeah, you know people say bad things about about Nate and all these different things, but the way that I look at it is any certifications better than none okay.

So you know if you're gon na take a Nate test. Yeah, I'm gon na be honest with you for me: they're pretty easy, but not not knocking anybody that they're not easy for okay, but you know that the if, if someone is taking that test and they're having a hard time, they're being challenged - and I think that's A good thing, so any kind of certification you can get, I think, is definitely worth it so um. Is it de Kendrick Dawson. Thank you very much man.

I really appreciate you watching my chat, my video, so I think it's important Alexander you're still learning. I think it's important that everybody realizes that they're always gon na be learning. You know so: okay, Gary black jr., what's my opinion on cap tube systems, you need to start flowing nitrogen when you're brazing to prevent clogging okay. So I have a theory and I'd like to know if any of you guys in the chat here share my same theory but flowing nitrogen.

I totally agree with flowing nitrogen, but on a cap. Tube system is where you're gon na run into a problem. Okay, because to get that nitrogen flowing to through the capillary tube the amount of pressure on one side of that capillary tube is going to be so intense to be able to get that nitrogen to flow. All the way through.

The captive you're gon na create a restriction. Okay, because that's what your cap tube is. It's a pressure drop device right pressure. It creates a pressure differential.

So you know you have to be careful. I I do agree in flowing nitrogen on cap tube systems, but I will say that when it comes time to actually brazing in the capillary tube, I stop the nitrogen flow. So I might open the the I'll put a cap tee dryer on my my cap tube system. Okay, so I might take the Schrader out of the cap tee dryer flow, the nitrogen and braze everything that way it can come out.

The the you know the the quarter-inch cap, you know spot on the cap tee dryer, but when it comes to brazing in the capillary tube. That's when I think you got to be careful because yeah you're gon na you're gon na build a pressure up on inside of that cap tube, and I bet you you're not gon na get it to seal. So that's just my opinion, so yeah. If it's a flare system, heck yeah, but even still you know just be careful - I'm gon na be honest with you.

I didn't start using nitrogen, probably until then 2010 ish, when I started reading stuff, because it was one of those things again. That was never taught to me and now not excuses. You know I read about it, but I didn't quite understand how to use it. So definitely in the last 10 years.

You know I've learned a lot and changed my practices, but there is something to be said about the systems that I worked on back then that never had a problem. You know, but again, I'm not I'm all for doing things. The right way, I'm not knocking people for not doing it. I'm just saying that you know deaf hvac are so Kyle dude.

You did one man, you, you won the veto bag dude. So what you need to do is email me, so you actually won the the big veto back. The the tech otm see that's behind me. So what I need you to do is send me an email to hvac our videos at gmail.com and I will send the bag out.

So you did so right on I'm glad you came in here yeah, I'm super glad. You came into it. That way. You know.

I'm sure you want to watch the video anyways, but yeah yeah, you won man, so, okay, let's keep going and the bag that you won is the one right behind me: the open top bag. So, okay, keep going. I'm reading here keep going down here, see what I'm missing yeah for any of you guys Fred had mentioned here: Fred, I'm sorry camp, Regina at last name, dude meteors, I'm probably butchered that but commercial refrigeration for air conditioning technicians by dick worse is a great book. I've mentioned it before.

I personally talked to dick wears a really nice guy. I've taken a class with him and online class where he taught it live really cool dude, really really cool dude, very smart guy Bryan or had him on his podcast a while back. It was actually right after Bryan or had him on the podcast that I talked to him dick or I'm sorry, dick words actually reached out to me, which was a very, very felt, really good that he reached out to me after I wrote a article about temperature Controllers for Bryan, so really cool, dude, primetime. Sorry to get to your question here.

What is my opinion on Larkin close? I love Larkin coils dude, I mean Larkin. Coil is a heat Craft, coil dude, it's all the same heat craft, Larkin bone, shandler they're. All the same: okay, no they're they're they're about as durable as they're gon na get. I mean you're, not gon na get much to better than a Larkin coil.

There's only a few evaporator coil manufacturers out there at least the big boys. You know so yeah. I think they're reliable. You know if you're interested in the systems I'm kind of up in the air, but they have their new electronic expansion valve system.

It's not the beacon system, but it's the qrc, the quick response, controller I've had pretty decent luck with them. They use a bunch of sensors and they've got a big digital control. It eliminates the need for a defrost clock. You know, I don't know I'm kind of up in the air and whether or not I like those or not, I've installed like three or four of them, not stuff that I sold the customer supplied equipment, and I mean they work.

I'm still like an old school dude, so I prefer to have just a normal expansion valve in still annoyed valve, but you know they're pretty cool. So, okay, let's keep going here. Where can you find training courses and things of that nature? You tell your boss all the time Brian Milburn. Are you in the States, I'm assuming you are if you're in the States.

What I suggest you do is look up as far as online training goes. Okay right on yeah. As far as online training goes look up. Hvac, our edu or dot edu hvcre to you.

Let me pull it up real quick to make sure I'm telling you that right, the right thing: okay, HVAC our edu net. They have a lot of online training, that's usually subsidized I'll, go ahead and a screen share right now and show you their website. So you can see what it is that I'm talking about. You can usually get some free training resources and, in fact, that same class that I took with dick Wars was the commercial refrigeration class and it was through them and I actually didn't have to pay for it.

And I got a book. It was a really cool class. I don't know that he does the live classes anymore, but they have a lot of cool information. Lots of great stuff.

This one right here is what I took the commercial refrigeration class, so they have building automation, classes. They have all kinds of stuff on there, so if you guys don't have physical trainings that you guys can go to, I would always suggest looking these guys up so HVAC our edu net, the owner, the guy that started it his name's Chris Compton. He has a bunch of people that work for him. Now he's a really cool guy he's come and presented at my RSES classes.

They do a lot of rate like I said if you can't go to a physical training, they're a great online resource to to get training from so hopefully that works out for you and then also Fred, said RSES. Definitely, okay. I am very much involved in my local RCS chapter: lots of great information. Definitely def.

Hvac. Are your welcome man? No problem dude, I'm glad you won. So so, if you guys can look up your local, our SCS thing. True tech tools, yeah they have some online training too.

So there's all kinds of stuff out there. You just got to look it up: HVAC our school Brian Horace thing. You know he does some great stuff on there too. So, okay, Paul dieter, when I run into an R 22 system, do I retrofit to 407 C, or do I use any of the drop in refrigerants? Okay, it's kind of a sour subject for me.

I currently use our 22 okay. I don't go in with any drop in refrigerants. I'm not gon na completely say that I'll never use a drop in refrigerant, but I will not do - is use a drop in refrigerant that says it works with mineral oil. I have not had good luck with them.

I caught you know it just been a headache for me. That's me personally, some people like the drop in refrigerants, I'm just not a fan of them. Okay, so I stick with our 22. I would be open to using 407 see if it was a polyester oil system, okay, but if it has mineral oil in it, I'm only going back in with our 22.

If the customer insisted that I used a drop in refrigerant, they would be signing all kinds of paperwork that I would not be liable for that compressor. I'll tell you a story that I lost a train: 10 ton, 3d scroll compressor a day after I installed it. I did an install a retrofit. I used our 427, a which is a you know, one of the drop-in replacement gases.

I did a bunch of research found that that was the best fit for me. It specifically said it worked. Fine with mineral oil changed it over.