This video is brought to you by sportlin quality, integrity and tradition. Today we have a office ac that is not working properly. Customers saying it is down. We walk up to the unit, it looks dirty unit is not running.

We're going to need to uh start over at the control section and uh dig into it all right, so we have a schematic right here. Okay and this just breaks everything down, so we have an electrical control section right here. The cool thing is, we have a legend right here. This legend gives us an idea.

What is in this control section, so we have an electrical connection right here. That's our thermostat connection. We have a clo, which is a compressor, lockout board. That is right there.

If you look right here, it gives you definitions for what everything is. I just happen to know, so you have a capacitor all right right there. Then you have an ifc indoor fan. Contactor right there looks like our indoor fan, contactors possibly pulled in, sounds like it too, because it's moving right.

Then you have a c, and if you look right here, that is a compressor contactor. It is not pulled in it's right. There igc ignition control board right there and then transformer. So this is a pretty simple operation here.

So what we have? We have three phase power coming in from the disconnect switch comes over comes up right here. Branches off goes to your transformer, creates a 24 volt signal all right. It's going to jump into the board and stuff, but inevitably the power is going to make its way to the thermostat board right there on the r wire and it's going to go downstairs to the thermostat. It's going to power up the thermostat.

You also have a c for common and the thermostat is going to be your brain and that's going to send power. It acts as a light switch, it's going to say, hey turn on cooling, hey turn on heating, hey turn on the fan, so our cooling is reflected in y1. The blue wire, our heating, is reflected in w1. The orange wire w2 is also there, but it's not used g is reflected right here and here's our common and then we also have an x terminal which will help us to diagnose whether the compressor lockout has been a problem.

So we send 24 volts down to the thermostat. The thermostat acts like a light, switch decides which way to send power back up, whether it be on y1 w1 or what now the fact that we have a carrier package unit with a compressor lockout. That is not working. The first place we need to start is.

We need to check to see if we have proper unit voltage coming into the unit, so we need to check for three-phase power, so we're gon na start with. That carrier does some weird things: single-phase contactor, but it's how it is so we have 203. Let's just call it line one and two, and then we're going to jump up to line three so line one and three 203. Now, let's go from line two to three 203 okay, so i just switched it up.

So we have three phase power coming into the unit, so that's a good sign now. The next question is: do we have control voltage coming from the transformer going down to the thermostat? We can very easily check that by simply going over to our thermostat board right here and going between r and c we go between r and c. We should see 24 volts, we see 25 volts. That is a good sign.

We are sending power down to the thermostat now whether or not we're sending power back up is another thing. Okay, now i said this unit has a compressor lockout board, so we are going to check the compressor lockout board, which is right there. What the lockout board does is, it looks and says: hey are any of the pressure switches open or closed if they are there's no way of of controlling them from short cycling, their pressure switches do not have manual resets, they simply go on off on off on Off on off, which can cause compressor problems, so this compressor lockout board looks for a pressure switch to open and then it locks it out. We can test that by going between x and c.

If we check between x and c and you get voltage, then you know that you are off on compressor lockout, so something caused that to go into lockout mode now. It can also sense the current of the compressor and, if the compressor doesn't run it can lock out on that too. There's also sometimes a freeze stat in these units, but typically you're, just going to have high pressure, low pressure or high pressure loss of charge. So let's go ahead and start over in the compressor section to see if there's anything over here pressure controls that might have failed all right now.

This is our compressor. It's a fairly new compressor and we have pressure controls back here, but they are not manual. Reset pressure controls, so that is a little concerning, because if we are off on a pressure control, we might be completely out of refrigerant. So at this point we need to go ahead and put some service gauges on this unit to be able to figure out.

If it's off on low pressure, all right, we are set up and we have no pressure in the system. We are completely out of refrigerant, so that is a bad sign. Um! Well we're gon na look for any obvious signs of a refrigerant leak. I'm not seeing anything as of yet but we'll have to look up in here, see if wires rubbed out.

You know it's hard to say nothing. There. I've worked on this unit before, and i've worked on, trying to make sure the wires wouldn't rub anywhere, but you never know the vibrations these things cause. So, okay, we're gon na poke our nose around looking for a leak, that's interesting! So i put a little bit of refrigerant in there and then stacked nitrogen on top of it.

I've got 233 psi in the high side, but it's not bleeding through to the low side, see it should be pushing through the metering device in the dryer and it's not it's not doing anything. That's not good at all. So we're going to uh put a little in the low side and see what happens. It's really bizarre that it's not pushing through it's always possible that i'm not depressing the straighter, but i think i am it's very interesting.

Did you guys catch that? Did you guys see what happened when i attached the the the service hose on the low side port i'm gon na play it again when i'm done talking to you guys right now in hindsight, and i figured out in the mid, you know, towards the end of The video, what actually happens is i i kind of freaked out. I wish i would have filmed it, but i didn't i stopped filming this because i got really frustrated and i was really confused, but the um, the fl core, max schrader or cormax, fitting whatever you want to call it was not being depressed or it was. It's broken and - and you guys will see too as it goes on it's not in the right position - it's like crooked inside there, and so the service gauges weren't depressing it properly. So this system actually had the full charge in it the entire time and then i dumped nitrogen on top of the good r22, see the original or the problem that actually happened again.

I didn't get it on film, but the problem that happened was the system went off on high head pressure because and - and you guys will see in a second too - the fixed orifice metering device was plugged up. Now i didn't catch that on film, okay um, because i stopped filming at the point that i realized something. Funky was going on with the nitrogen and i should have filmed it because you guys could have seen my frustration in my my you know. Confusion on what was going on in hindsight as i'm watching the video, i can clearly see that, as i put on the suction side service, or i mean the uh, the the nitrogen hose onto the suction side, to add gas to it before you hear the nitrogen Tank open all of a sudden, the suction site had 205 psi, but it had zero psi.

The second before see, so something was going on there and i think what actually happened was once i put nitrogen in there. It actually finished depressing the schrader. It was like almost ready to go in it and it pushed it open. So, let's get on with the video and you guys will see and on a side note too.

This video was filmed all the way back in june of 2021, it's now october, 9th of 2021. Okay. This is footage that i've been sitting on and it's just time to go ahead and release it. So, let's get back to the video, that's not good at all.

So we're going to uh put a little on the low side and see what happens. It's really bizarre that it's not pushing through, and it's always possible that i'm not depressing the straighter. But i think i am it's very interesting. All right we're doing a leak check.

Uh we had a problem like with the schraders. This traders jacked up this core max fitting. It might be part of the problem, but i wanted to show you this. So in the shade it is 113., let's see what it is in the sunlight.

Let that sit up there for a minute all right, we're doing a leak check right now, but the problem was when i took these off it contaminated this area, so we need to let it kind of dissipate and then we're going to do a leak check and Try to find out where this issue is at so i need to get the air moved out of there because taking the service ports off is causing refrigerant leaking in there and the leak texture is going crazy. So i taped up the compressor terminals and i'm forcing the contactor on so i can get the condenser fan motor to clear out the area in there, so we're gon na. Let it run for a minute and then we'll uh we'll get in there and try to find the refrigerant leak. The only place that i am finding a leak is right at this cormax fitting right there.

Let's see the leak detector going, berserk and uh, that's the only place that i'm picking it up and the cormax fitting is crooked too. That's the one that wasn't making good connection it's like crooked in there. So it makes me wonder if it's been slightly leaking now. The cap had a gasket, but that doesn't mean that it doesn't leak.

I mean they leak through the gaskets all the time. Yeah it's definitely leaking from there um, but we're going to keep checking the rest of the unit i mean. I would think that if it was that i would see oil all around it and there was no oil there. I mean both of those guys have very tiny leaks, that one's bubbling out like that coming out, and then this one is ever so slightly bubbling out too, and that is the only place that i'm finding a leak.

We're leak. Checking this entire thing right now we're not picking anything else up. Oh, that is interesting, but this thing is completely flat on gas, i'm extremely surprised, but we are back and we are going to be changing the evaporator on this guy because of the plugged fixed uh, fixed metering device or fixed orifice metering device on it. So uh, you know we gave a quote and all that stuff and they approved it and we said, are you sure, and they said yeah, it's still r22, so we're going to uh recover the charge pop the top change.

The evap we've also got a new drain. Pan because might as well when you're pulling the evap out all right to give some context here. We previously diagnosed this system to have a plugged up metering device, but the customer didn't want to do anything about it. Okay and someone has tried to add refrigerant - to get the suction pressure up and the saturation temperature up, but you can clearly see that the sub cooling is through the roof.

Okay, because what it's doing is the refrigerant's not being able to flow through the system at the right rate? Okay, because the metering devices are plugged, it's not pushing through at the correct flow rate. Therefore, you, you would run without adding extra gas you're going to run low suction pressure and you're going to have freeze up issues, uh, weird freeze up issues and in order to get the suction saturation temperature and the suction pressure up, you have to add refrigerant to The system but you're really not doing a whole lot, except for stacking, the refrigerant in the condenser and that's reflected with the extremely high sub cooling okay. So this is the conclusion that i came to that i didn't film right, but because i got frustrated with the whole nitrogen thing in the you know, and then i went ahead and told the customer hey, let's go ahead and solve this problem. It was the summer time and they wanted to go ahead and fix it now, so we quoted a complete evaporator replacement, which came with the fixed orifice metering devices already attached in it.

So that way we could properly get this system. You know up and running: we've done a lot of repairs on this system, so it was really about time and i mean in all honesty like i'm, going to tell you guys in the video i'm surprised they actually did the repair, but let's get back to it. So to get the evaporator coil up here, we have our lift right here. This is the sumner 2124 lift uh it'll go 24 feet and if you flip, the forks it'll actually go to 26 feet.

So it's pretty cool. This thing we've used it so many times this thing's paid for itself, um granted, i'm sure they're more than they are than they were then. But i think we got this thing like over 10 years ago and we probably paid three grand for it or something like that and it's paid for itself. Every time you use it, you charge a fee.

You know i mean just like if you were renting it and easy, as that, my lift is right here, all right, we are just about done recovering uh. It's got about 24 psi left in it. Um i've got the unit disassembled. I've got everything sanded all the joints that we're going to unsweat we're going to put in a bigger dryer if possible, i'm going to put a high acid or an hh uh suction line, filter dryer in here too so, but the evaporator is done and broken free Ready to go all right got the evaporator out with a nice bit of oil in there not too much, though so we got some brackets.

We need to put on got the old one, set it right on this guy right here and send it down all right. This is an interesting one, so i'll see if i can throw up. I don't know if i threw up a clip in this video or not but um. I don't know if i got this footage, but i came out here for a service call and i thought the system was out of gas, but it wasn't out of gas.

The schrader actually went bad if we come over here. It's this stupid high flow schrader core and if you look at them, they're sideways see how they're not there and so the the the gauges weren't depressing it properly. So i thought that it was out of gas, and so i put nitrogen in the system to do a leak, search and come to find out. It was not a gas, it probably has the full charge in it.

So the refrigerant i i turned the system off and shut it down, but i knew that the system had a plugged up metering device because we've previously condemned this. So i need to bleed off that nitrogen and i'm going to try to save this r22. Okay. So what i did was, i took the tank and i filled up the bucket with water.

We're gon na bring the temperature of the refrigerant in that cylinder to an even temperature i'm going to let it sit for about an hour or so, while i'm installing the evaporator coil, then we're going to take the temperature of the water. The temperature of the water should match the saturation temperature of the refrigerant, and, if it doesn't, that means we still have nitrogen, then what we do is bleed off some of the refrigerant from the vapor side and we're going to purge the nitrogen out of there. Now i've already bled off just a little bit right now, so we may not even have i mean i don't think i put that much nitrogen in it, but i don't want to damage the system or anything like that. Now we're going to try this.

If i can get the pressure temperature chart to match, then i'll feel comfortable reusing this refrigerant, if not, i quoted for all new refrigerant, but i'm going to try to save the customer a couple bucks, okay, so we'll uh wait for that water temperature to stabilize out And again let it sit for about an hour or so so that way the tank temperature. You know equalizes out and everything like that and then we're going to be making sure we bleed off the vapor port because that's the top of the tank and that's where the nitrogen will be sitting. The bottom of the tank is going to be all the liquid. So before i sent the coil down, i sent down the measurements and i asked if it was the same coil and we were.

We made a miscalculation on the measurements. So i measured three inches and downstairs. They must have heard me ask, and it was three and a half inches, so it's the right coil. It has the same here.

You know amount of return, bends and everything and the same amount of copper, but we notice that this gap right here is a lot smaller on this coil because there's basically a quarter inch of extra fins on each side. So, overall, this coil measures three and a half inches deep when the old one measured three inches deep, which is giving us a problem, because it's literally i'm gon na have to shave down the metal because it doesn't want to fit right here. This is dumb. It was a pain, but i took my cutoff wheel.

I have a little 12 volt cut off wheel and i went and trimmed. I started with about a 16 of an inch off of this side. I had to put this cover down, so we didn't shoot sparks downstairs, so we're going to attempt to see if that'll fix it. If not, then i'll have to trim a 16th inch off this side too, which is going to be a pain.

So after looking at it, the old coil, i had taken these things off of it and they're like little extender brackets, and i think from the looks of it, you eliminate those because these basically stepped it out the half inch difference that the coil is so. I think the new coil was meant to be bigger, but i don't know if they really planned on me having to trim that inside piece that was kind of silly, but i had to trim both sides - it's not perfect, but it fits so. We've got this piece on we're just reassembling it we're going to put the filter bracket in then. We've got to put the side panel on so just a little bit out of time.

All right there we go 100.7 100.7. So i bled a little bit off of the vapor side, because it was a little bit higher and we're doing good now so just gon na. Let it sit for a little bit longer, though all right we've got some oil trapped in this condenser, i'm just purging it, so we're gon na put a towel on it. Try to blow out as much of the oil as we can just make sure it stays sideways.

Yeah. Okay, we got the nitrogen flowing sweat this dryer in real, quick trying not to burn everything up. Inevitably stuff is going to melt and it doesn't have to be perfect. It's not the end of the world, so shouldn't even really need any solder, because it's growing pretty good.

I'm gon na keep the other side one more time. It's gon na be a little overheated, but it is what it is. Okay, all right. We got everything brazed in that dryer is a pain in the butt man um.

We got oil everywhere from when we were blowing it out, so i'm gon na have to rinse the condenser before we put the top on we'll rinse all this stuff out. We're just gon na secure some wiring right now. Maybe take a lunch. Get a vacuum running on this guy and then that way, uh we're ready to charge it up and then we'll start assembling the rest of the unit, putting the filters and the economizer wall economizer is not doing anything because it's disconnected as usual.

So all right, condenser is cleaned. Uh, we're running the tightness test on the field piece manifold, just started it rinsed all the oil off all that stuff. So as soon as we pass, the pressure test, we'll put the schrader core removal tools on here, get the vacuum pump set up and then i'll start assembling the top and all that stuff and start cleaning up my monstrosity of a mess up here i got stuff Everywhere so we have also got a couple guys here, doing a maintenance too, or at least a rooftop maintenance. So i don't really need to see any more.

It's been running for six minutes and we haven't changed anything as far as pressure goes. So i'm gon na go ahead and let that out get the vacuum pump running got the filters put in and we'll start assembling the rest of the unit. It is good practice anytime. You are opening a system that has these high flow schraders that you change them.

They have such a high failure rate. In my opinion, anytime. I open a system or get an opportunity. I have the tool to change them on under pressure too, but so these ones right here you see how the little thing is off to the side.

So that was part of my problem. Was they weren't depressing? The schraders properly? I got most of the unit assembled um vacuum pump's still running. I went ahead and valved off the side with the uh micron gauge we're currently at about 800 microns and dropping. But that's a true vacuum because we're only pulling from one side, condenser fan motor is installed, but it's not wired in yet we'll do that once we get the vacuum taken off.

So i'm actually gon na go take a lunch um, the economizer assembly. It was really dirty, so i hosed it off, so i'm gon na let it dry, while i'm at lunch, hosed off everything else, all right. We are past our decay test, it's at about 800 microns and actually it's kind of teetering right there at 809, 808. Something like that so, but it's been in the cage for like 10 minutes um, so we passed our decay test.

I evacuated i'm zeroing out my scale. I evacuated my manifold gauge set um and at this point we're going to open it up and charge the system. It takes 9.5 pounds of refrigerant, so we're going to try to dump that in there and then hopefully, it'll take the whole charge. So that way, we can uh hook up the probes to this and do a full analysis on it.

When we're done all right, we started it up um, as as it does sometimes it starts with lower pressures, and it's got to build them up. It just does that, so i'm not i i weighed in the charge, and this is what we got right now. It's not horrible we're going to give it some time to run and kind of stabilize out. I'd expect my evaporator temperature to be a little bit higher, but again we're going to give it some time of running and just kind of see what it does.

Adding a little bit more refrigerant, mind you, i did not add extra refrigerant for the bigger liquid line, filter, dryer or the big suction dryer that i added to the system, so we're kind of adjusting the charge a little bit, adding some more um. It's getting there still got kind of high sub uh super heat. Um remember, sub cooling is going to be higher than normal than what people expect, because we're using discharge line pressure so we're looking good so far i mean we're there. You know um my uh temperature splits high, that's expected because we always mix a little bit of outside air on this guy, so we're just gon na add a little more refrigerant see what happens all right.

This unit is like polishing, a turd. It's never going to be perfect number one we're typically going to run higher than normal condensing temperatures, because the wrong condenser fan motor, it's an aftermarket. It sits too far down in the shroud. The condenser is jacked up, so we're a little bit high on our head pressure, but not bad superheat's, a little bit on the low side, but not bad sub coins about where it needs to be we're just going to give it some time to stabilize out the Temperature split is a little bit high, but if i remember right, this thing runs a high temp split because i think it has crappy duct work, the airflow.

I don't know why that's like that, because the airflow is not that bad but, like i said we're gon na, let it run for a little bit longer, but i'm i'm happy so far we're looking pretty darn good. So all right, i went downstairs and something that i noticed too, is that the return air grows really dirty. So i talked to the customer. It's in the middle of their cook's line, they're going to clean it tonight.

It's just dusty, just really impacted, so that should help with the airflow a little bit but other than that guys. That's it um. We uh we're gon na put this guy back together. They should be happy now, but you can see that condenser is just jacked in there just really smashed up.

I really tried to get them to change this unit, but they weren't into it. They weren't having it. So it's like all right. Whatever here's, your quote, you know i mean put a compressor in it two years ago, uh.

That was a lot of money. Now we put an evaporator in it, i mean they bought a new unit already, but hey. I just do what i'm told you know. I was getting some funky readings, putting my my probe in through the side of the unit.

I uh put it actually in the return airstream and it's looking a lot better now so about 14 degrees, super heat, 18 degrees, sub, cooling, temp, splits decent. We still have a dirty return, so they're gon na work on that airflow's decent, i'm a happy camper. So this is our accurate liquid header right here. So liquid line comes in goes through tiny little pistons and then comes out the other side of the evaporator.

Now this one i autopsied completely, and we can actually look right here. If you look very closely, you guys can see that we have a large pinhole on the left and a very small pinhole on the right. Now i've got the flashlight shining through the liquid header and that's just showing how they're restricted inside now. I've also got one right here.

This is just a cutaway and there's actually a piston right inside of there and that one, you can kind of see a little bit of light too, but we just have some that are restricted, some that aren't here's another one too. This one you're probably not going to see light through because i think oh yeah, this one has some good openings. Actually so these little pistons get plugged up now, what's interesting to know, a lot of people say that you can clear them and while i don't doubt that you can get some success, i personally have not had very good success, but i want to point something out: This is a double piston or it's a double orifice so see. I cut it right in the middle right, the fixed, orifice metering device.

You can see the the pinch point right here and i cut it right in the middle and you still have an orifice on that side and you have an orifice on this side. So there's a double piston there. So if something makes its way through there, which is what's happening, it's going to get stuck in between and you're, not truly going to be able to clear these things. Okay, so this is why now you can also change just the metering device, but even that is going to be a pain in the butt.

It's just so much easier just to change the whole evaporator, so all kinds of stuff going on in this one. Okay, customers, don't always go for big picture repairs, don't always go for big picture quotes. Sometimes they approve less. Sometimes they don't approve anything.

This one started a while ago: we we said it had a restricted metering device, but the unit was still operating. The pressures that i showed when i pulled up the measure quick screen, um the second time we're actually from the pre. You know from a while back. Okay, so i've known in the back of my head that this unit had a plugged up metering, device or semi-restricted and to be fair, if you have an r22 unit with a fixed, orifice metering device, the odds are the metering device, has some sort of a restriction And a very common issue, especially on customers, that don't do proper preventative maintenance or don't pay to have their coils split on a regular basis and cleaned the oil and the compressor cooks and causes these problems.

Okay, so um we got the call out here. You know i was confused. What was going on there long story short, the schrader went bad. What are the odds, though, that both schraders were bad? That's a trip right both of those schraders were bad.

I have a hunch as to what causes those schraders to go. Bad um and it's it's the way that they get depressed and because they're a high flow schrader they get depressed. You know when you tighten your gauge thing on there. It really pushes down that little plunger, and it just i in my opinion, makes them more susceptible to damage.

Now. I've never seen this before, where two of them at the same time were not being depressed, and you guys saw when i put the nitrogen on there like how it like, i showed the clip as i screwed the gauge hose onto the low side. All of a sudden there was 200 something psi and then, like a split second later you hear the nitrogen being opened and flowing into the system, and then the pressure went higher, see i didn't catch that right away until later in the the video that you guys Didn't see because i stopped filming and the way that i caught it because i was just kind of working and really didn't you know, wasn't paying attention to everything was when i went to go vent the nitrogen out of the system. I was gon na okay, i'm gon na vent, the nitrogen - and i knew i didn't put a lot in there.

So it's like okay, i'm gon na vent it and all of a sudden. I had liquid refrigerant coming out of the hose and i'm like. Okay, i only put a liquid a little bit of a tracer gas of liquid refrigerant and then i was gon na dump nitrogen on top of it. So when i started to let the nitrogen out it was like liquid liquid liquid and it's like wait a minute.

Something's not right, you know, and then it clicked in my head. I think that's refrigerant in the system what the heck and then i started looking into it and then and then i remembered hey this thing was acting kind of funny. I was worried about it depressing. Oh, my gosh, i dumped nitrogen on top of good r22 refrigerant.

So now i want to say this: i was trying to save the customer money, but i don't find any fault in anything that i did in this video. Of course, there's things i could have done better: i would have had no problem selling the customer new r22. If need be. I do not see any issues with what happened because the schrader's going bad, that's not my fault.

Okay, that's a problem of that particular coremax. Schrader, fitting or high flow straight or whatever you want to call it. Okay, that's just the thing. So that wasn't my fault right, so i had when i when i quoted this evaporator replacement and at least that's the way i see it, i'd be kind of curious.

What you guys think in the comments? Do you think that i was wrong for wanting to potentially charge the customer for new refrigerant? Do you think that i, as a business owner, should have ate the cost of the refrigerant that i accidentally or inadvertently, put nitrogen? On top of it had i needed to change it, i'm kind of curious now, in height you know, as everything's done, i was able to save the refrigerant okay, i'd never done that before i don't know if i've even ever heard anybody say that you could do That before - and maybe i was wrong in the way that i bled the nitrogen off the top, but i operate off of dumb logic. That's the way i you know, i'm not the smartest cookie in the jar or any of that stuff. Okay, but i just kind of think: okay, liquid refrigerant, you know, i know how to tell if there's non-condensables, i know how to tell if you've got mixed refrigerants and it's very similar to the way that i checked. If there was nitrogen in this refrigerant.

Okay, following pressure temperature relationships - now i guess there's always a possibility. There's still minute amounts of nitrogen in there it's always possible, but i, in my opinion i felt like i did everything that i could to try to get that r22 and the nitrogen separated okay. So i put the recovery tank in a bucket of water and i let it sit outdoor in the ambience over 100 degrees just sitting there right, because i wanted even temperature all throughout that tank. And then the logic was the saturation temperature better match.

What the outdoor air temperature, or that the temperature of the water in the tank was okay and it didn't at first. I wish i got footage of that because i only showed the before and then i showed the after. I wish i would have shown you know the discrepancy. It was a couple psi off and then i just vented vapor off the top of the cylinder right and it wasn't really vapor.

I just vented out of the vapor port and i vented the nitrogen out of the top of the cylinder until the saturation temperature. And then i let it sit for another hour. While i was doing other things and then verified that it was correct and it stayed equal, the water temperature and the saturation temperature, so i'm curious on your guys's thoughts on that too. So leave me a comment down in the comments and let me know what you think: do you think that was do you think i was incorrect for doing that because i mean it, it seemed to work.

Fine and everything was good. You know um and then once i even you know, you got to be careful too on those carrier units your placement when you're working on package units, it's convenient to put the probes in the side of the unit, but it's not always the most accurate place. So you guys saw that i was having weird temperature issues and airflow issues and then once i moved that return air probe from the side of the unit actually into the return air stream down by the filters, it kind of solved my problem so um. This was an interesting one.

I run into these weird strange problems on a regular basis. It's kind of fun. You know these are the ones that i really enjoy these challenges, and these i do find it odd that the customer chose to repair this unit. I know i'm going to get a bunch of people commenting but guys i go to my customer and i say: do you want to try using alternative refrigerants and they say? No because i tell them look, there could be good things, you can save money, but it can also go bad too.

I told the customer in this situation. I said the cost comparison on a unit like this is going to be well over a thousand dollar difference. If i was to use an alternative refrigerant, you know it could be cheaper, but they would rather stick with r22. Now, to be fair, i tell them my opinion and my opinion is stick with r22, but i'm kind of a biased opinion in a weird way right, because i'm making more money if they stay with r22.

So i just make sure they're aware of everything and i say look there can be some issues that we might run into right. We, you know we might lose a little bit of performance, it might be confusing for other people. You know just weird stuff, so i said i strongly suggest that we stay with r22, but when it comes to money, sometimes i say it's up to you guys, though you know we can go ahead and try an alternative, and you know if we have problems, then We can address it then, or we can just stick with r22 and we know it works and go with that and my customers have been choosing to stick with r22, so hey go figure. But on another note i tried to talk him into replacing this unit, but i've said this so many times and i say it on live streams and everything in the state of california.

It's insane the hoops these guys have to jump through to properly change a package unit majority of the customers out there. They don't want to pull permits because it's such a nightmare, the bureaucracy they have to go through to replace a package unit. Once the code enforcement people come out to sign off on the job, they do an inspection. It's like opening pandora's box at these places, and then they want you to do duct testing.

They want you to do third party hers rating all this different stuff. You know and and seismic testing they want structural engineers out there if anything changes if the unit's over 200 pounds more than the old unit, they want structural engineers looking at building plans to make sure that it's safe, you got ta strap the unit like there's just So many hoops and most customers don't want to do that, so they end up preparing. They just keep repairing and repairing and repairing, and you know i mean i i gave them two quotes. I gave him a quote to repair it, and i gave him a quote to replace it and they chose to repair it, even though they put a compressor in this recently, even though they had a blower assembly rebuild recently, i mean thing after thing after thing: they Just see the now, they don't look at the the big picture of everything, because they're just concerned about surviving right now, it's just this crazy time when these restaurants are doing everything they can to survive so right now in survival mode.

It's this moment at this point. In time, yes, we could save money. If we invest a large amount of money right now and replace the package unit, we could save future repair costs and different things like that, but they don't see it that way. They just see it as this is an expense.

Now it's going to be cheaper to fix it now than to replace the entire unit, even if it means that in the long run they could save money. They still don't do that and - and it's not just one restaurant chain guys. I work for several large multi. You know what do you want to say: big giant corporations that have restaurants all over the country, hundreds and hundreds of restaurants different chains, and they all do the same thing.

Majority of them don't want to replace equipment, because it's such a nightmare there's some that do. But you know it's it's such a nightmare to do it so anyways, hey, i'm babbling! If you guys haven't already and you're really interested in doing so. Do me a favor and check out my website. Hvacr videos.com got merchandise, available, hats, beanies sweaters.

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This one says: hvac our videos and then we have the big picture: diagnosis shirt. So if you're interested check it out, hvacr videos.com a bunch of different other ways, you guys can support the channel patreon paypal, truetech tools. I have offer codes if you're going to purchase tools all the information's in the show notes of this video check it out. Remember i try to go, live on youtube monday, evenings 5 p.m, pacific, where i discuss these videos and then i also try to go live on the hvac overtime youtube channel, with my buddies about 605 pm um pacific on fridays, okay, um.

I really appreciate you guys. Thank you so much. It's awesome to see the the support and all that good stuff from you guys. You are amazing um, it's really really cool.

Okay! Thank you very much and uh. We will catch you on the next one. Okay.