This video is brought to you by spore'ln quality, integrity and tradition. Today's call the complaint is that they've got water leaking on top of the restrooms and it's dripping and causing mold in the ceiling to rot out and what it is is see that line sit over there. That's the walk-in freezer we're gon na get crawling over there and see what's going on, but we've got some ice. Buildup look up some compromised insulation crawling up here.

It looks like I got a friend up here with me too, alright, so we're trying to climb over. It's a tight little attic - it's not horrible, though so we'll get over there and we'll get a look at that line set all right. So the insulation has definitely failed on this and you can see that it's been leaking on the roof, causing all kinds of issues. It's kind of a tight fit back in here and it's hard for you guys to see it, but there's actually a walk-in cooler over there too.

A line set it's running far over there somewhere, oh yeah, it's running way over, I'm gon na be honest with you. This thing's gon na be almost impossible to re-insulate and we're probably gon na be better off just just replacing the line set, it's probably gon na be easier. So, and another thing too, is this: is the outside of the building. The walkin is on the outside of the building, so this is running down the wall and then coming out the wall so like getting the new line set down that hole, it's gon na be impossible.

I think the best bet is gon na be running this exposed on the roof, so we're just kind of getting started on repiping this line set and getting it out of the Attic where it's all messed up so just kind of roughing. It out real quick to get an idea. What I'm gon na do we'll try to straighten out the lines I didn't plan on this little roof pitch thing they got going on here, so I might have to use a 45 there we'll see and then we're gon na end up using one of their roof Drains customer doesn't want to go over the side of the wall, just be for aesthetics. They don't want people to see it.

So, as I'm mocking everything up, I'm going through and deeper in it cleaning, it sanding it. So that way, it's one less thing I got to do after again, just trying to save myself some headaches and I'm sure I'm gon na have to cut things short, but I'm just you know doing this and trying to help myself. So I'm waiting for some fittings to make that final, 45 or whatever I'm gon na, have to do there so just going through it slowly just try to get everything ready to hope. So I don't know if this is gon na work, but I hope that I only have to run one line of blocks and I can put two line sets.

Both the line sets are gon na be 7/8 3/8. According to the manufacturers, recommendations for proper oil return and refrigerant velocity, so I'm hoping I can get it's gon na - be tight, get to 7/8 and I've got the cushion of therm clamps. So I'll show you guys those in a few minutes for the unit strut clamps. So it's it's got a big ol fat piece of insulation on it.

So that way we got seamless insulation. So I don't always get to do this, but when I can, you know trying to follow best practices. I've got nitrogen purging through it. I'm using my it's a Western enterprises, VN 500 regulator, and it has a braze feature.

It's really nice, I like it and then I have a little step. Braze chingus you can put in different sizes, so we're just getting ready to hit this up. It's open on the other side, we're gon na braise these up, then we'll fit them and make them all pretty and everything. So I know for a fact that my torch is dirty the last time I use so oftentimes.

What I'll do is turn the oxygen on late on a flat surface and just clean the tip real, quick with the oxygen on. So nothing goes in it do that and then I have a torch tip cleaner, I'm going to run while the oxygen is running. An actual torch tip cleaner, looks very similar to a cap to gauge, but it's not so. Personally, I like to inspect my welds as I go along because, if there's a leak - or I don't like the look of it - I'd rather heat it up, while it's still hot instead of doing it later.

So I just give it a quick look with the mirror. Make sure it looks good make sure we got a nice good cap. Also being careful see, I'm wearing a headscarf. You don't want to be letting this fall down when you're braising catch on fire and you have a problem.

Looking good we're gon na hit the next one real quick, I got ta move over the nitrogen right same thing: we're going to braise this one up, nitrogen is flowing through I'm sure. I'm gon na get the question I've raised with a number 2 tip. It's a little hot, but I like blowing a lot of you it's best to let it naturally cool, but you know I'll, let it cool for a minute and then probably having to use a towel. So I can get moving again before I cool it.

I'm going to inspect the weld or braze joint, whatever you want to call, it looks good looks like we've got a nice dipping cap on the fitting in and it looks like it flowed in. So it's cooled quite a bit now, but I'm gon na go ahead and pull it a little bit more now granted you're not supposed to cool lines because nobody's perfect. What I'm looking for in a braise joint is that quarter-inch that the solder and the heat went quarter-inch in quarter inch. L, nice, good, solid cap right there.

You see that that's what I'm looking for! It's not overheated! In my opinion some may say it is, but it's not overheated, but it's got enough heat that the solder flowed all the way around. Excuse me, I'm kinda out of breath, but this is all we're gon na get done today I got the suction lines ran. You know mocked up and ran braised. I went ahead and put the rubber caps in the end and just left the insulation dangling, because we still have some more to do, but we're gon na come back and then we'll pump down the walk-in cooler pump down the walk-in freezer.

Make final connections. But I didn't run the liquid lines yet either so I'm running out of daylight today, so we'll do the liquid lines. When I come back and then I'm not even gon na secure anything yet because there's not gon na, be anybody up here, we'll secure the suction line. But you see we got it right here.

I'm not perfect. My lines aren't exactly straight: I'm not a great installer, but there and then I ran it down down there and then all the way over and then we'll come over. This is their walk-in freezer right here, so again we're coming there and then what I'm gon na do is I'm gon na make a cap that I'll go over this and it'll still be open, just in case water was to come out, but what I did was I picked the highest. These are secondary, roof drains in case the main roof drain.

Doesn't I picked the highest one that didn't have any water around it, which is this one? This one has a bunch of water and mud around it and this one's a drain. So you know it's not ideal that I'm using the secondary roof drain, but it's better than coming over the side of the building. This way, I only have to make a cap, that's what four feet and then I'll just paint it this beige color to somewhat match. So that way, you know people from the street over here aren't seeing this and, like I said, I just ran them and then put the rubber plugs that come in the lines I shoved them back in there.

So I know moisture gets in there for now and then we'll tape, everything up and secure it down to the blocks once we do. The liquid lines to these are the plugs that I'm talking about right here and they come basically in each end of the pipe. Now I can't I didn't roll with 20 foot sticks hanging off my van, so I had them cut them in 10-foot sections. Because of that, all that I'm gon na do is twist and push.

But you got to remit first twist and push and you'll get it to pop in there and then that way, it'll keep any other moisture besides, what's already in there from getting in there while you're, you know letting it sit outside. I kind of made a mistake here and it's okay, I'll remedy it, but I didn't give myself enough room between the two suction lines to put both of the liquid lines. So what that creates? And here's the other thing I don't have 20 foot sections of pipe. If I had 20 foot sections of pipe, I wouldn't run into this, but I'm gon na have to run the liquid lines on the outside of each of those.

Now this one over here will end up being okay and I'll. Explain that right now, but on this one, you see, I have a ten foot section right here and I want to do a 45, but I'm too short to make it 45, because if I 45 it it won't be on the outside anymore it'll end up coming On the inside right here, so you see that's if I 45 to this line would have to come all the way out to here. So it's an easy remedy. It's not gon na be perfect.

Again, I'm not a perfect installer. I just do what I can. I'm gon na take a piece of soft 3/8, because what I could do is put a coupling here, take this put a 45 and then have a bunch of braze joints. But if I just take a piece of soft 3/8 and swage, it I'll only have to braze joints as if I was using a normal 45.

So that's what we're gon na do right here. I've got my switch, can't drill my GB putter. What we'll do is we'll make it a little bit be exactly absence. Crap creates in the band, try to roll it as straight as possible.

The one will do is just cut it right about here and then all that I'm going to do is just take my tubing bender and lay a 45 on this guy. So, let's see, if that's good enough, didn't quite hit the 45 month there's my 45 on that step, alright and then now ya see that'll work. I ended up grabbing the towel because this is so hot. Oh, that's good now like that, like that we phrase it in it will do something to support it while we're raising it, then I'm gon na take my mark that I'm actually gon na go just on the inside that mark.

My bender has a little jingis right. Okay, go ahead and pull it back and hook it up for me hooked up, okay, so the networks perfect. It puts me right where I need to be, and I'm gon na go ahead and get this ready to be braised and we're gon na get ready to make connections. So this is my walking cooler.

That's my line set that I ran we're gon na come down to a p-trap and then go in, and then I walk in freezers over here. I already drilled the holes and we're getting cleaned up inside so that way we're gon na do the walk-in freezer first, because I find that to be the hardest one and I like to do the hard difficult stuff first. So so again, we're gon na put a p-trap, basically going up so I'll. Take a pre, well you'll, see I'll.

Take a pre bit piece of copper, Bend 90 on it, going to the coil, come out 90 again and then we'll go into the trap and go up all right. I'm hooking up the smart probes. That way, I could do evacuate and not have to use my manifold set, we'll be able to evacuate the liquid line through that guy, actually we'll probably just pull through the section line, because we're just gon na be well. No we'll have to do this too, so, but anyways it'll all make sense when I get ready to do it, but we're gon na go and pump it down at the receiver.

But we got to remember that these receivers, when they have the packing nut - if they do, you want to loosen it before you actuate the valve okay, so I'm just gon na get right up on there. Sometimes they don't have them. Sometimes they do this. One does so we're just gon na loosen it right here there you go, that's all you got to do and it just prolongs the life of the valve.

So then, now we're gon na put in front seat this guy notice that we've got pressure on the high side now, because we front seat at the valve and we're gon na front seat. It all the way, okay notice, that we get a little bit of a leak. That's because I loosen the packing they kind of hissing at me a little bit right now, just because it's loosened we'll just tighten it up and it'll stop leaking there. You go see it stopped leaking, so that happens.

We're still gon na have pressure. We're gon na go ahead and open this guy up and we got pressure on the low side. So now we're going to turn the condensing unit on pump down once it pumps down we'll let the vapor out of the low side and then we'll be open to atmosphere and get ready to change over the line set and do their connections. We'll still have all the refrigerant stored in the receiver, pull the vacuum on the unit and started it back up and went ahead and pumped down the receiver check the liquid level.

It was a little bit low. We had left it on install yeah we hit. Well. We had left it at the three-quarter mark, and I want to say it was right about here is where it was right now, so I went ahead and filled it up with about a pound and a half.

I think that's what it was all measuring my tank here in just a sec, but I'm assuming it was about a pound and yeah. That's it things running we're gon na go and open it back up. I still have got some little bit of cleanup here and there to do yeah we're gon na, let it run for a little bit while we're cleaning up, but yeah freezers done now. We just got to hook up the cooler.

What I'm doing we haven't done any work on top of the walk-in, so the lines are still just sitting there, I'm doing a bent piece of copper for the liquid line and for the suction and I'm gon na go ahead and pump the system down. Now. One of the really cool things this will make for a really easy evacuation on this one is that once I pump it down at the receiver, I'm gon na show them the front seat. The king valve I'm gon na shut off the flow, the refrigerants and all get sucked into the compressor and get stuck on the other side of the discharge reed and the compressor.

Then I get to shut down the suction, so that way I'm not pulling on the oil, because the oil will still have refrigerant trapped in it and a lot of times the oil being contaminated or having refrigerant or other non-condensibles in it is what causes the evacuation To take a long time so, once I get it pumped down at the king valve and the system shuts off I'll, be able to go ahead and front-seat. This suction side service valve right here and then I'll pull my evacuation through the liquid line port right here and it'll evacuate everything all the way back up, and the plan is to put my micron gauge on this guy right here. So then, I'm just vacuuming down the line set and not having to try to get all the stuff out of the oil which will make for a really a much better evacuation. Now, that's being that that king valve doesn't lead - which is often the case - king valves always leak.

So when you're pulling a vacuum on a pump down system, it's often very difficult to attain a perfect vacuum. So we'll see if everything goes well and but this valve doesn't leak, you know so anyways, but that's where we're at so we're gon na go ahead and pump it down. Now I decided not to cut out the suction filter for a couple reasons, but one I need that port to purge with nitrogen, but we're gon na be changing this condensing unit very shortly, so I'm just gon na leave it in for now cuz. It's not leaking.

The compressor suction valve is actually leaking by two kind of like I was worried about because look at my suction pressure, 58 psi and that's right there and it's just because you know the reed inside the compressors probably leaking by or something so but anyways. So yeah. We're not going to cut the suction filter out, but I got the liquid drive changed. It's nice that it was a flare, so I was able to reuse the same sight, glass and just flare in the dryer.

We finished up the last couple. Braze joints. We still got a couple little things to clean up things to support, but I'm pulling the evacuation right now. So the way I'm pulling the evacuation is through that port right there, liquid line solenoid valve, is open and on downstairs, so it's pulling all the way through coming back up on the suction.

So it's a true micron reading. But again I don't expect this to pull down below 500, because I know that these valves over here are leaky and refrigerant. So we'll just get it down. You know low enough to where as low as I can basically so all right, we're in the walk-in cooler.

Now you can see how we just styrofoam that and then that way it foams up, but it'll, be all nice and solid when it's done, and it looks like we're still gon na put a strap to hold this line up right here. This is temporary. Like you see how I connect it to their existing solenoid valve, that looks like crap, but it's because we're gon na change the coil, here's their walk-in freezer. This one's already got a new coil and you can see we literally just connected right here and went straight out the wall so that one's still giant ooh.

We got to figure out a way to seal up that hole right there. The old, I think, ones just silicone it. We really can't do a whole lot for that. So so it is not perfection, but it's functional again.

I wasn't striving for absolute perfection. There's all kinds of things I could have done that three-eighths comes out too far. You know I mean it's, I can't be perfect, you know, I mean if you look at it the 3/8 line kind of wobbles over here you know, but as good as it is, the customer doesn't want to pay for anything more than what we gave them. So we're currently foaming the holes, so we put cardboard on each side and then put the foam on the inside of the cardboard and the cardboard holds it back.

So we're currently doing that on both the p-traps are right there but, like I said we're gon na get a cover for that right there. So that way, it's not visible from the street because the line set itself is hidden below this little parapet wall right here, but we just want to get it. So it's covered right there and I'll probably paint match it like you know nothing I'll, just get a rattle-can Brown or something like that and spray on there. To recap: we had a service call on a water leak above the restrooms and we went out there.

We found that the water was coming from the insulation, the failed insulation on the refrigeration lines just to start out. I know I'm gon na get a bunch of comments about the ice coming back to the walk-in freezer. First, off, I'm gon na say that ice doesn't necessarily mean something bad, even though, most of the times, it's a pretty good indication of an iced up, evaporator coil or some sort of flood back. Ok, that is something that we are going to address.

I really didn't feel it to be super urgent at the time, but I'm definitely going to go back. That unit has a electronic expansion valve, so it's a very good possibility that we have some bad sensors for the suction line temperature sensor. Basically so yes, we are gon na follow up with that, but anyways, because I know I'm gon na get a bunch of comments about that. But anyways you know I'm not perfect.

All right. The customer doesn't want to pay for perfection either. I try to do the best I can with the the tools that I have, which you know just a little bit of knowledge that I have so you know, I'm sure that you guys can nitpick the heck out of that. I can nitpick the heck out of the job.

Ok lines aren't straight different things like that. Okay, I did my best and again it's good enough. Okay, you know it doesn't have to be absolutely perfect. Nobody does absolutely perfect work.

Okay, you know not in a short amount of time, for you know, under a quoted amount of, you know, costs and all that different stuff. Okay, so it is what it is, and you know, but do me a favor, you know, send me some feedback. Let me know what you think: okay, if you think I could have done better. You know tell me okay, just you know, because if there's things I could have done to make it go faster.

I'm looking at the job - and I already know that there's a couple things that I would have done differently doing it over again. You know so there's always that stuff, but I tried to share a couple different little tips there. Obviously I didn't show all the brazing. Okay, I only showed I think you know couple couplings or fittings or something like that and then just kind of showed the rest of the job, what I did and how I did it.

Okay. I really appreciate you guys taking the time to watch these videos. You know leave me some feedback. Send me an email remember.

I do live streams every Monday night in the show notes of this video, I'm gon na link a new YouTube channel that I'm starting that's gon na, be where I'm gon na be reviewing tools. It's gon na be called HVAC. Are tools just look in the show notes. I do not have any videos on the channel yet, but do me a favor if you guys would go, give it a subscription.

So that way, once I do start loading up videos, you guys already know about it: okay, so I'm working on things and I plan on uploading a few at a time, so that will be coming soon, but other than that guys I'll catch. You guys on the next one: okay.