 This video is brought to you in part by TrueTechTools. Quality tools, essential support. Okay guys, today is Sunday. We have a grocery store call. One of the circuits on the rack is running warm. Of course, it just came out of alarm, but unfortunately, it's been going up and down for maybe a day or two. I asked him to pull a particular section so I can check the evaporators. I bet you this is it right here. Which I can kind of feel. I think she wonders if some of these little crates are probably packed full of crud. I watched you watching me. Just confirmed and they did say yes, this is it. Let's take a look. Okay, looks like we're feeding. That's a good thing. It's a little different than what I'm used to. Let's see, most of them are all one big long thing. But this is a lot newer than some of them. Unfortunately, the evaporator is up here in the wall. And you can see, it looks like they're clear. So I wonder if we got a refrigeration issue or like a refrigerant issue. These are all on electronic EPR valves. It really should keep really tight temperatures. Definitely feels a little better over here. This is really cold. But we've got multiple thermometers or temperature sensors in here. So they should like, some should be warmer than others. Like here's a little dead spot. It's not completely dead, but a little bit. And this area here is also running a little warm, but the coils look like they're clean. So I think we need to go look at the rack and see if there's something weird going on there. Because it's really seeming like refrigerant some sort. Thank you. Oh, this is getting better. Everybody's storing everything up here. Nice. It's really getting good. So this is one of our newest stores. The most of our stores are nowhere near as nice as this. So there that is. We're running 52% capacity. We're running 404. We're set for 48 suction. We're running 47 heads. Average 10. 210. We're at 212. That looks good. Outdoor fans are all off. So fresh meat. Rack C. Circuit 1. Circuit 2. We have two temp sensors in there. They're both at 46-49. EPR is at 100%. So it thinks. And we are at 48 degrees. Now we may have possibly some strainers. But you can see as we go along here, it should really be more steady. If it's truly on the EPR style system and it's all over the place. You can see we've jumped higher here. Now if you want to see a little more accurate, we can hit enter. And instead of using graph, we use log. Log is a lot more detailed than it does in about every three minute increments. So the big thing here is paged down. And that's the fastest way to scroll because nobody showed me this. It wasn't until I finally got one of the other guys to tell me about it. And it's kind of helpful. First you're sitting here going down, down, down, down, down, down, down, down. If you've never worked on one of these, you're not used to it. Let's go to say dairy case. Let's see what its normal temperature looks like. Graph it. Okay, it's holding steady and these are defrosts. So you zoom in, these are your defrosts. Otherwise it holds pretty steady. The other one's obviously not doing that. You go to setup, you can see when it's defrost time is. It's going to do four of them at 1.30 and 7.30 a.m. and p.m. So our biggest problem happened on the 12th at about midnight. You can see, yeah, I think you're screwy, but you can really see things going to heck here midnight. So that is on the number nine case. Let's go back up to number two. Let's see where it took it down. Here's things are getting screwy. 12th at midnight, same thing. We're getting really more jaggedy. Something happened at that time. Let's see what we got for our sight glass. That's rack B, that's nice and clear. I don't think they put one on C. If it is, I don't know where it's at. Here's your heat recovery. This is where you take the hot gas and run it into a water heater. Same thing at valve there. It just basically switches direction. That valve there does the same thing. You got a decent teacher. It's not that bad, but boy, when people don't want to share information, things really are pain-hined in. And of course it's locked. Yeah, I'm sure I set an alarm off. Probably running split condenser. I want to say C would probably be the middle. If that's the case, our receiver looks like it's below 10% down there, like zero, which is awesome. Like I said, they run the receivers really low. That way you have just enough to make it run. Anything extra, you end up just losing it if you have a leak. Yeah, look at that one there. It's nice and high at about 30%. There's a layout chart somewhere. Usually you got to go find it. Probably low on charge, which means we're going to have a leak somewhere, which is great. Last time I had a leak here, it was catastrophic and the whole store went down. It was because it blew a hole out of the side of the compressor. My voltage line ended up shortening to a refrigerant line in one of these compressor sections, which they vibrate like crazy. So let's go ahead and yank some of these out. So you've got your compressors here. One, two, three, four, five, six, seven, eight. Two of them are locked out for some reason. Oil levels look like they're up. You can see where some of these are shorted and rubbed into things. Right there is one of the perfect examples of it vibrating and rubbing into things. That's happened multiple times. That must have gotten fixed there because then you're possibly going to rub through there. Same thing here. I ain't even moving it until I feel power to this thing because I moved it one time and it shorted. Getting into the power section here. There's compressor number three that's tripped. See that's not one of the ones that were bypassed. So you come up here, three should be on. It's not, obviously, because it's tripped. That means a high voltage, something or another happened. Look at that. See how it's black? I mean, you can see where it's happened before. These are shorted into things and blown chunks out. Well, that probably, yeah, you can see that's happened there. So it looks like it blew the chunk out of it. Let's make sure that power's dead on that one. We'll test our stick. It's working. It's working. Let's go to three. Three dead. Working. Look at that. What did I tell you? Obviously that needs fixed on all of them, but unfortunately it doesn't look like it's happened. So now that that's dead, let's go ahead and get that repaired. That might be some of our issue. We might be losing capacity because you think it's running, but it's not. Even though our suction's right. Let's go to number three. Let's go ahead and just completely kill it that way. Engaged all legs are dead. There's compressor three completely off. Kind of curious. So that takes three compressors out of the circuitry because for whatever reason they got seven and eight locked out for some reason. I ain't sure why. I don't like that. I don't want to just tape that up. So cut that bad section out. My usual crimpers I used out there at the truck, but these things ain't pulling that much power. Coming on done. Check the other ones for problems. We don't see anything. So let's just so it can't short into anything else. I think that there might work. Twist. Make sure these aren't touching anything. Got to really investigate a bit. So we're pretty safe here the way that is. None of these wires are getting into anything. Seems like they're pretty free and clear. Those look pretty good. What's funny is they don't have a proving switch on this to make sure that it's okay. And go ahead and turn that three back on. Stand over here as much as we can. Look away. Boom. Heard a click. 15 amps. 14.3. 14.5. That one's running. That one's running. Yeah, what I had was one of these lines here shorted into like right there. What have you. It really wasn't in a good spot. I think it was this one or that one downstairs. Yeah, it's getting ready to rub through. If we do it like that, you might even get in there to crimp it or get on there to clamp it. Better be in the sharp edges, I'll tell you that much. Jumping back over here to our temperatures. Look at that crap. Fresh meat. 32 degrees. What I ended up doing is going through every one of these and getting them set up. I had this wire here. It was actually getting really close to hitting that valve. That's what happened on the other one. It's shorted into that and then blew a hole through the refrigerant line and lost 400 pounds. This one here, here and here. All these are taken care of now. It's funny that they don't have an amp clamp proving switch of some sort in here. Fresh meat, of course, is back up to 49 for some reason. What's going on there with that? Let's go over to defrost times 1, 7 and 9. Perhaps at 61 still, it still hasn't came down. I think we may end up having to add some refrigerant to this thing. Did it come down? It started to come down and it dropped off too. We may still be low. Like I said, we looked a little low. I think it sucks here is getting the refrigerant line up here because it's all the way downstairs. Here is the store layout with all the different racks and stuff. B, C and A. C is in the middle. This one here that we're at right now is C. That's B, A's downstairs. That's probably Y. C is in the middle. That is the one we were looking at. This one here is C. I just marked it. This is your discharge gas. It's not hot. It's got some warmth. This right here is cold because it's valved off. This is where they're splitting the coil at. So in colder weather, keep head pressure up. They'll just shut off one section of the coil. Got a check valve here on that. And they'll just use one section of the coil. Here's your hold back valves. You're open one differential to keep your pressures up. But we're low on charge. Let's go grab the detector and see if we can find something. And there's the other one hidden behind all that. And our refrigerant is right there hidden behind all that. So we're there. Got this one over here. So we went ahead and warmed up outside. Let's see. It's going to sniffer mode. Because it's a big one. It's going to go nuts when we walk in here. And hopefully it don't. Might be able to just add some for today and come back and look for a leak. We'll see whether or not this hose will work all the way up there. I don't think it's going to reach. I really don't because it's quite a distance. Okay. I was able to go up just four steps. And it'll reach. All right. Well, following the discharge line, which is hot gas, over to here is in speed mode. All of a sudden I narrowed it down, put it in parts per million. We got a leak. It's definitely on that fitting down low. You can see it's dropping. Come back down. Boom. Hopefully it's one of these flare fittings. That'd be awesome. It just does not like sky high on that solder joint. That don't usually happen. Wow. I'm going to spray it and see how bad it is. Maybe I can bypass that section of the valve. Because if you look at it, it looks like it's going out to the condensers or to the reclaim unit. Maybe I can bypass that and get around it. Found it real fast in super mode. So I wanted to make a quick shot out here to this. Make sure we ain't got no major ones out here because it never fails. You find one leak. There's another one. And then you miss it because you thought you had it. So like my one guy says, we're looking for a 100 pound leak. We ain't looking for no 12 ounces a year leak. Something just fell. I hope that wasn't my leak detector that just fell. No, it's just my drill. No big deal. The detector's up there safe and sound. Go ahead and bleed her out. Up here. Long hose. There we go. All purged. All right. It's going to go through the Schrader course. So it's going to take a little while. You would think it would have oil everywhere. Seals. I see a little bit of oil there. It's not really that hot. So now's the time to do it. Let's go grab the soapy. See if we can get that thing to squirt. Oh, there it is. I like it lucky and be able to tighten that up. It's fine now. It won't tighten up. Now I'm not going to snap that frigging thing out of there. So like I said, it's leaking between the plates there. Not on the weld joint, which is good. So we're going to have to come back. I don't have that seal. I don't think there's any. Well, lucky there. We got a shut off there. One there. And there. So yeah, we can isolate this turd. I'm always worried about not getting the accurate reading. So we got one right there that fits. It fits right there. And it fits right there. It looks to me that that is one, two, two and an eighth. It makes it a little easier to pin for the newer guys. Because I'm a new guy when it comes to some of this bigger stuff. Looked at that too. That would have been probably just as intelligent. All right. We just got all the refrigerant in there. Oh, hey, here's a diagram. You come out of the rack, which is right there. It comes across through this line right here. It comes up. You got these valves here. I could probably, I need to probably shut that one come through. And then that's the first one comes out of its bottom over to that one. So on this one here, the three valve three way valve comes into its center and goes through center goes through and out of the bottom comes over to this one. So it comes out of the bottom comes over to this three way. This one here is for the heat recovery water coil. This one feeds heat recovery air coil. I don't even see that as an option off of this particular controller with the other ones. So if I isolate this, it should keep it from going to that, but either way, it looks like it's going to go through it. Yeah, because I mean, it kind of goes through that one to the heat air recovery through this one and through this one and that one and eventually gets over to condenser. Got looking again. All right. So it comes out, comes across. You can valve it there, valve it there. That would isolate both of them. Then it comes across and goes out the wall over here, which then goes out to my condensers. So good. We can actually isolate this turd at those two valves there. Here is the bypass. We're going to turn that on first. Got that open. Now we should be able to close this one. There we go. And close this one. Look at that. They're different. That one's got no seal. Of course you're not going to have any heat reclaim. That means they're going to have to run gas. I hope they have gas heat. That's got the valve in there. Let's see what our suction's doing on this thing. Head's not jacking up. Suction's a little higher. See if that slows down the leak. It's going to have pressure in it no matter what. Yeah, it's still doing it, but there's still going to be pressure in that until you can suck it all out. It's not even hot. I don't think a stupid thing even works. At this point I've got it recharged. To the point where we should be pretty close. Let's go out here and look at our liquid level and see if it's up. We're getting one fan running. We're warm here. Cold. And we're getting pretty warm there. About 15%. A lot better than it was. Alright, so we should be good for today. People are going to have to get that valve or get a seal for it. I'm not sure which one it would be. I haven't had to do one before. So the hot gas comes down, goes to this air handler, goes back on the same big line, and then goes back upstairs where it was at. It's kind of a piping maze. And to make things better, one of their other stores that are about 75 miles away, just called in too. So probably something very similar, but not surprising. When we did what we did here, we just isolated the air handler, which is this one here. The way it basically does is it goes through the valve, and out of the bottom, if it's going through the reheat, it's going to go straight on through to the reheat. If not, if it's in the other position, it's going to come out of the bottom, and then it's going to feed into that valve there. It'll also send that way, but it's going to hit the check valve, but there, so it's got to go through this valve. If it's bypassed, then it's going to go straight on through. If it's not, actually it's going to go straight on through, go to the water heater, back out of the water heater, come around through the check valve, back down, then out to the condenser, and eventually work its way back to the liquid line, and then eventually through all the cases and back to the suction. So we are isolated, so as long as they have another hot water heater, we're good. Which I would about guarantee they probably do, I hope. So here's the other rack coming across, doing exactly the same thing. It goes through there, it goes to heat recovery on that same air handler, comes back through a check valve. Same deal, should have a bypass right here. You can isolate it there, and you can isolate it right there. So guys, I'm going to get out of here. It's got enough in there now, and it's running, so as long as they don't have a problem with the hot water, we should be good, and then we're not losing any refrigerant, which is good until we can get back and get that changed. They got valves here, which seems like I took this off. It started leaking, which is really awesome. So had to yank out the valve core and put a new one in it. So definitely a good thing we have the straighter core removals. And that's about it. So I'm going to pack things up and get the heck out of here and see what else we run into. You guys enjoyed the video and you want to see more like it, make sure you give it a thumbs up, subscribe, click the notification bell, and until next time, we will catch you on the next one. Later.