Dirty Evaporator Pulled And Cleaned! Major Improvement!

Hey guys, I'm here at a mobile home where I previously diagnosed a dirty evaporator pool. So let's take a look at it before we snatch this thing out and clean it up. Yeah, that's pretty bad. So let me look at this right here. I can disconnect right there. No need to cut. I will need to cut that and I can put it back together with a press fitting. Cut the drain. It's going to be pretty easy. I just need to look to see where the dryer is. The dryer is in here. I've got a face full of spiderweb. I'll be honest, I don't see a dryer. Okay, I've got to take all this off to begin to pump down the dryer somewhere, right? Well, it looks like we've got straight cool. I can't believe this. Y'all forgive me. My phone is ringing nonstop and I have like seven jobs to do today. They just going to have to wait. All right, let me get to it. Man, these things are hard to get to. See if I can use this for that. Oh, I could. Forgive me. I didn't mean to leave you hanging like that for a long time. Forgive me. My day is not starting off the way I want. Come on. This one's going to take a while. I got that blocked all the way off, so I'm going to open it that much. It really does not matter which probe I use. I just need to measure pressure right here while I'm doing this. All right, that is ready to tighten down. I got to be really careful. It's still hot. All right, let me get my so I can read pressure. Okay, there we go right there. If y'all are not familiar with HVAC, what I'm doing right now is pumping all the refrigerant into the condenser so I don't lose it. The refrigerant flows in this direction and comes back on this pipe, so I close off that valve. And then when I've got all the refrigerant in the condenser that I can, I close off this valve. I'm going to open this up a little bit more. I'm down to 70, 80 psi. 77, 35. I'm under 10, 4.5 psi. There right there is reading a negative 2. Okay, no refrigerant in the system. Let's go do our repair. Okay, I am not going to cut this line. And just a word, there was a dryer inside the condenser. I'm going to leave it there. It is sealed in there with the refrigerant, not exposed to air. Man, that was almost loose. And I'm just going to leave that dryer in there. Don't want to lose that. And there's going to be a piston in here. You don't want to lose that either. There it is. I could probably replace the Teflon seal with what's in my truck with that piston. So those two things cannot lose. That's to kind of smooth out the rough scratches from the sandpaper. Try to put this close to the middle of the clean part. If you're going to be using sandpaper and you can sand before you cut, it's a good idea to go ahead and sand it first. Less risk of some of the particles from the sandpaper or something getting in the system. Cut this close enough to be able to leave it connected to the drain pan, but still be able to pull the coal out. So all I should need is a coupling for the drain in here in this system. Perfect. Just something to help. Okay. And as y'all can see down here, it's absolutely horrible. And that coal, that coal outside is terrible. What the inside of that coal looks like. It's almost funny it's so bad. Pretty bad. I don't know how that thing was cooling without freezing up. I have no idea. I'll do the same thing here. I don't want to get unnecessary water in the system. I have done it before, and if you get water in the system, it's going to really slow down the job. You might have to triple evacuate or something, and that really does slow you down. So that little step right there helps out a lot. Tell you what, while I've got it out, I'm going to take some pictures of it, and we'll do a before and after. It's already looking much better. That already looks a lot better. All right, I think it's time to put some chemicals on it. I was the wrong one. Let me go get another one. Try this again. I still got a little bit in there. Add a little bit of water. At this point, that coal, in my opinion, is pretty clean. We're just going to knock what's left on it off. Clean it up real good. That thing's going to perform much better. That's a bullseye nozzle. Those are in my store. They actually work very well on a trigger nozzle like this. I'm going to put some of this in the drain pan. All right, we're going to let that sit for just a second. All that coming out. I'm going to move this to a spot that's not covered in that foam spray. I think we're done. That is my final product. Try to get my head and fingers out in the shot. Now I've got before and after. It's clean. Let's see how that cabinet is doing. Much better. Much, much better. Let's go get full. The drain is dripping. There we go. Got to connect these. Don't forgive me. It's really hot outside. All right, now I've got to find that piston and teflon seal. This piston has two distinct sides. This side is the side that goes in. Make sure my seal is on there. Those are thin little brass threads. Always start it with your hands. Get it snug and then put a wrench on it because you can strip those threads real easy. We're getting snug. That's enough. Now we've got to connect that one. I think we're okay on that. I'm not going to try to do that upside down. Let's see. If I only had a pin. Let's hope I didn't mess up the O-rings. That's it. Just like that, that system is sealed. Three quarter right here. We still got four bars from the last time I pulled a vacuum. We're going to do this with my manifold. I'm going to tell you something I have found. When it comes to installers, you want your installers to use nitrogen and use a micron gauge. My experience is I don't care how well you prepare them. Nice vacuum set up. Nice micron gauge. Plenty of nitrogen. It don't matter because the micron gauge is going to get oil on it. They're pulling one to two vacuums every day. When it gets oil on it, they just throw it to the side. That's just a reality. But, if you give them a manifold that reads microns, they will use it. That has been my experience. I'm sorry if that is right in your way. Make sure these are tight. Open that up. Make sure that's open. Okay, last thing. Open these. Make sure that one's closed. While this is pulling a vacuum, I'm going to clean up that area up there. I think we are ready. Everything is open. Okay, soon we should be starting to see a vacuum. We've got about 26 inches of... There we go. Down to microns real fast. That's a good sign. That little sticky white thing I was trying to get off my brush is a spider egg sac. Getting close to... I'm sorry if y'all can't see that. It is bouncing all around 500. Let it run. I've got to find a way to better secure that panel that's on there. It is hard to tell if y'all can see that, but I am mostly under 400 microns. This off. That off. Valve these two off. Okay, y'all know what I'm fixing to do next, and that is release the refrigerant. I'll bring you back in just a second. So we can read pressure. And let's see how she does. We know we have a piston in there, but let's check superheat and subcooling. There's a good chance I don't need to add any refrigerant. It's not reading my superheat. There we go. I don't know if y'all can see what I'm seeing, but I have a head pressure of 302. Suction of 100, which is barely above freezing. High superheat. I've got 42 degrees. And somewhat normal, well, 5.8 degrees subcooling. That superheat is too high, and that suction right there is too low. So we're going to need a little bit of R14. I still don't know if y'all can see this very well. Head pressure has gone up 339 psi. I have a subcooling of 14.9 degrees. Suction is at 138 and rising. Superheat is at 26 degrees. My saturation temperature is now at 49. Let's keep an eye on it a little longer before we add some to it and end up overcharging it. For a few minutes, my superheat is still up. 25.7 degrees. It is 79 degrees in there, so something around 20 degrees is not abnormal. My subcooling is at 14 degrees. 24.8 on my superheat. 24.6 is coming down. I don't think I'm going to end up putting any refrigerant in this. 23.6 on superheat. Y'all forgive me. I have not added any refrigerant. 12.4 subcooling at 338 psi. Over here I have 21 degrees superheat at 143 psi on suction. At 79 degrees inside. And we're at about 84 out here. I'm going to leave it just like that. This thing is probably doing much, much better. I think they'll be happy. Well guys, I hope you enjoyed the video. The actual pulling clean turned out really good. I'm happy the way it turned out. I know I may get some criticism for not pulling the dryer out. But it was pumped down in the condenser with it. It never was exposed to moisture. I'll take the heat. Technically you're supposed to. Technically. But in that case, and between you and me, that is why they put them in the condenser. Not just to ensure that one is installed when the equipment is installed. But for that reason, I have spoken to a Goodman engineer about this. I was actually complaining about it. But that's part of the reason they're there. Catch you on the next one.