Came out here, obviously, when i was supposed to do my live stream found that we had compressor was off on overload. I don't know how many people are new in here it was burning hot. The pressure control had broken the capillary tube off and the contactor seemed like it was like stuck so the compressor was red-hot it took forever for it to reset. I was able to push in the contactor and i heard the compressor run once it reset, but now i'm just waiting for the solenoid to close.

Oh there, it goes cool here we go see. If this thing starts and runs, it isn't completely horribly bad there. It goes pumping, we got suction pressure and discharge pressure, so compressor doesn't sound horrible. It's a fan cycle control, so the condenser fan motors there we go wow.

What are the odds? This thing isn't bad. It's running, i'm charging it right now too, as we're going. That's crazy, so we got a flashing side glass at the moment. So wow that's a trip.

I can't believe this thing reset. I hope i can make it through the period until which they uh get the new equipment, because uh exchanging this for warranty is going to be a nightmare. This video is brought to you by sportlin quality, integrity and tradition, all right, we're doing another walk-in cooler actually walk-in freezer install and this one because of all the crap they have on their back dock there's nowhere else to put this, so we had to build the Stand over so heavy duty stand and then uh. I've only got two people here: we're not doing the whole job today, but this condensing is a little heavier than i wanted to lift, and i really don't want to hurt myself.

So we brought our equipment, lift we're gon na put it on there, lift it up and slide it over. Okay, that should be good. We've got some crossbars. We need to run for support because that's a little wobbly, but once we bolt it to the concrete that'll help too, these units are so cheesy like this.

Crossbar is already bent and just like this sucks man, not a fan of these units, the whole thing's kind of like tweaked, getting there we're gon na try to do some of the line set some of the electrical, so the uh, the existing line set, is going To go in this chase right here, uh, you can see that one needs to be cleaned up a little bit, but basically back behind. It is the penetration into the walk-in. So the existing one is running on top of the box. So we're going to go on the side of that, so the idea is the line set's going to come out hit the wall go straight up, go right under that light, and then 90 into the box, and we've got a new coil for it too.

The electrical is gon na, come just like this electrical from up top and go straight down right here. So we'll probably run some uh, some uh um strut right here you know just little pieces. I got a couple little pieces electrical goes in, then electrical will come out, go into the unit run across and we'll just drill holes and go into the electrical panel uh. This is a 448a installation.

So once i put this uh cross beam right here. It really started this thing up: um super sturdy and i'm gon na bolt it to the concrete too i'm contemplating i'm thinking about it we'll see, but i'm wondering i don't know i'm one i just feel like. That would be a headache. But if i run a solid bar one piece all the way across that would make it a little bit more sturdy.

I might do that. I don't know we'll figure it out just for giggles. I went ahead and ran um this crossbar right here, because i don't want them to be able to stack crap up against it. You know, i know they'll probably still push stuff up there, but at least it prevents them from like pushing these carts and stuff like that.

So uh plus it'll give me a little extra stability too right there. Um last thing i need to do is just run this beam across here i'm going to go ahead and do that too all right moving along um. I had a helper with me here earlier today and uh. He had to go help someone change a compressor, so i'm flying solo now, but sometimes you got to do what you got to do to run electrical.

You know you got to figure out how to improvise, and so the plan is is again trying to get as much done today. So we installed the defrost clock, we've got the unit mounted secured. I bolted it to the ground. It's super sturdy.

You know it has room for vibration, but you know no big deal everything's good, we're starting to run electrical. We're not hooking anything up but like this is gon na, be my evaporator right here and i have just enough to make it to the evap and a little bit extra. So we're gon na go ahead and run the wiring in and have it ready. If everything goes as planned today, i'm going to have the electrical done and ready to hook up and um.

I don't know if i'll get to it today or not, but we might run the refrigeration lines. We just run them over to the wall up right here and then over and maybe stop right there and then, when we go to change the evaporator coil, we'll just do a piece coming through there. You know and connect to it or something we'll see. So this is the condenser unit and it's going to go um.

It's like they need some insulation issues there, but we're getting rid of it. Anyways, it's not iced up downstairs or anything, but i'm just running the electrical along and eventually we'll disconnect the electrical to this. Condensing unit and that'll hook up in there and then uh yeah, we'll secure the lines and everything after make it look pretty, but we can't do much until we cut that line set. Okay, the electrical is done as much as i can.

I pulled all the wires running over an extra i've got enough wire going to that conduit right there, which will eventually go inside the box. Fuses are installed electrical's all put in inside here, ready to go we'll get some spare fuses in there too. Um conduit's running through here, it's all hooked up and ready to go as clean as possible. You know they don't give you a lot of nice stuff in here, but just zip, tied everything up.

Uh colors are all figured out right here. So we're basically ready to apply power so yeah i am done for today. Um i'm not gon na. It's gon na start getting dark and i don't wan na really get into this refrigeration line stuff, but shouldn't be too hard when it comes time we'll run it run it right over.

There secured everything the unit's nice and safe nice and sturdy has you know the rubber vibration absorbers. They act as vibration absorbers, so those are kind of helping earthquakes, but it's nice structurally supported adding those right. There really really helped, and the important thing is, is that i wanted to make sure that you can completely access the bottom unit and you notice how high i went with it. That's because of the electrical for the bottom unit.

I didn't want to get in the way of that with the lines or anything like that, so that way, we'll have plenty of room to do everything all right, we're back today we're going to go ahead and hang this evaporator coil. So this is what i come back to looks like the storage here is doing good they're, not storing that they got these racks over here. This electrical panel doesn't shut. I guess i don't know um but yeah we're looking pretty good so far, so got a crew showing up we're gon na pump down the system, hang the evaporator and then uh we'll start opening everything up and figuring out how you know it's all gon na work Out so this old hole, they had two individual holes, but they didn't have insulation in there, and this is all ice.

It's not good. I bet you it's ice down. The wall too we're gon na go ahead and run one common hole and have insulation go straight through the wall. So i had ran the electrical over here for three phase, but this panel is just a mess because it look i'm standing on a chain-link fence and this side is still hot.

This side is off at the breaker, but i'm just having to get in here very carefully and do all this work i'm trying to rip out all the old stuff, so the next guy's not as confused as i am right now. We'll get this time clock out here and everything so essentially we're just using the breakers in here now. All right i was able to climb in on top of this brake or electrical panel, get in there and rip out all the wiring that i ripped all that stuff out that wasn't being used um. I still have some 115 volt stuff connected over here, and this is their walk-in cooler circuit, that's their walk-in freezer circuit, i'm gon na get that time, clock cover out and then we'll be done with the electrical up.

In this part, it's a short enough run that i'm just going to go ahead and do it with soft copper and then i just bent it going in and then we'll maneuver it inside once the insulation is on, it will straighten it up and stuff and it'll Look half decent okay, so we got a nitrogen rig, set up we're going to anneal this pipe because um, the soft, copper just doesn't look good. So we're going to kneel the hard drawn real, quick and make bends on it. So i'm going to get the nitrogen flowing through it needs to get on the braised setting okay nitrogen's on the braised setting, and then i have a general area of where i'm gon na bend it right here. So we're just gon na heat it up to cherry red, let it cool and then we're gon na bend it okay! So now that we annealed it it'll bend no problem perfect.

All right! We're going to braise these valves in real, quick we're not completely done! I'm going up, i stopped right there for the moment, because i'm actually going to use regular soft copper, because i got ta really manipulate it to get into that hole. It's kind of an awkward angle and stuff so but we're pushing with nitrogen through while we brace so the wet rag did a great job of protecting that valve. You can clearly see the temperature spot good job. I still got a little bit more to pull off, but all right we're getting ready or we're getting there a little bit more at a time or a little bit out of time, i should say said it the last time i don't like these little junk sun Valves they put on here but um, i'm uh brazen in the suction line.

It's it's seriously a mess coming into this thing, we'll worry about strapping everything once we get it all secured suction line just got put in we'll strap the sensing bulb right here and then we got to do. The liquid line now looks like this. Guy got a little hot, but then we got to do the liquid line, we're going to run it through all the way over there so see right here i went with soft copper, so i could swage it. I could have annealed it, but and then i bent this - i did a hard 90 here, but then i bent this by hand because it has to come up and do that weird thing to go on top of the line in there.

So that's why i went soft in this section right here. Okay, you know it's not a work of art, there's always stuff. You could do better, there's always ways you can make it look better. It is what it is.

You know i did my best with the abilities and the the budget that i had basically uh we're getting ready to pressure test it now so nitrogen's ready, uh field piece manifold hit, tightness test. Now, on the tightness test, you can actually put a suction line, clamp on too and it'll help you to see how much it deviates with the temperature. I'm not too worried about that right now, so we'll go ahead and fill it up with nitrogen. We should see it coming up on the low side because i've got a solenoid magnet there.

You go so it's bleeding through because of my solenoid magnet we're going to get it up to about 120 psi and then let it equalize out and go from there. We shot a little pass, but that's cool. I don't want to ruin the expansion valve so we're not going to go too high. It's not an exv, but i still it's a cheap ass valve um we're going to let it sit for a minute before we hit start okay, just to let the pressures equalize out, because sometimes they still change and then we'll hit start and then we'll run the Timer test all right and now it's evacuation time, so we're doing a one hose, pull right now against the schrader, so we're gon na, let it run for a while.

We passed the pressure test, we're getting ready to foam up the holes and go from there. So this unit comes pre-charged, so i'm really only vacuuming down the line set in the coil, so we're at 449.2. I've already valved it off there. You go.

It's actually pushing against the valve, it's probably going to leak but 449.0, so we're gon na. Let it decay for a few minutes, but we're pretty much done. I'm sure we don't have any leaks. I went ahead and put that cover on to cover up the lines um, we sealed the holes with foam.

You can see that some of our phones dripping down we'll wipe it off here in a minute, so all right, so yeah we're holding 449.7 and it's not moving, so we're gon na go ahead and release the refrigerant okay, because again this is pre-charged. This guy can handle high pressure, so we're good go ahead and take this off now good and uh. We're gon na get ready to uh start this up and hopefully wired everything up correctly. I want to turn on power to this guy.

The easiest way is just to disconnect coil voltage temporarily, so i can do a phase rotation test. I don't know if they even have it wired correctly here. So, to be honest with you, it's not really worth the phase rotation every one of these i've been doing. They've been wiring them wrong, so if you line it up abc it usually doesn't work so we're just going to fire it up and see what happens so.

Um, there's a delay. Time delay relay right here and it was set for five minutes. I brought it back down. We don't need no five minutes.

We need like a one minute delay, so went ahead and did that we're just waiting, let's see yeah, so i'm jumping across the delay right now and it's open so give it another minute break that delay set the defrost we're just gon na. Do four defrosts a day for a half an hour, okay and we just started up. I can tell by the way the compressor sounds that it's not running backwards. The phase rotation is correct.

We've got very low pressures because more than likely, my evaporator fan motors are not running yet so once the evaporative ammo is turned on, the load will start bringing the suction pressure up. We should be able to notice that, but we're just going to watch it all right. They already jammed a bunch of crap in here. These boxes are so small, but oh man yeah, so we're in everything's good uh.

We had kind of a one of our guys got into a fight with the foam insulation a little bit, but it's all good. So we're just kind of letting this thing run lines are down there. It's kind of a crappy like location, because it's right in front of the door, but you know hey it's all we can do you know putting it over here, wouldn't wouldn't really work because they have this uh. This drop down section right there.

So all right! It's all finished up, um again, it's like polishing the turd. We had a little insulation come down the wall right there too, but it's fine, we're just gon na. Let it dry and we'll peel it off later line sets in units running side. Glass is clear: coils running we tested the defrost heaters, everything's, looking good, so they're happy.

The only thing i'd like to see different is i'd love to support that, but i'm not gon na go crazy with this right now we also cleaned up the electrical up top way up there and yeah they're good to go so it took forever for us to Get that equipment uh. It was a bunch of crap with the ordering the customer orders their own equipment, so we just basically install it for them, and that's why i i you know say that i don't like this particular type of equipment. I didn't sell them that equipment. I wouldn't be saying that if i sold it to them but um yeah, so you know they buy this stuff and then i just install it for him.

You know decide what we need to do. I chose to put that unit on the back dock rather than up on top of that walk-in box. Okay, because the old equipment was sitting on top of the walk-in box and it was just really awkward to get to, and so that's why we had already moved the walk-in cooler equipment down there, and then we put the walk-in freezer right over that and i built Another one of those stands like you guys saw those things are pretty handy, but i do have to say that unistrut by the time you build that stand, it's rather expensive when you get all the little fittings and the bolts and the little nuts to hold it Together and everything it's very convenient, but man it's it's up there pretty darn pricey. So we went ahead and did the best you know again.

The customer doesn't want it to be this perfect, shiny thing, i'd love to spend. You know another two days making everything on that box perfect and line straight and all this stuff, but you got to be practical. Okay, you know the customer doesn't want to spend that kind of money. They just want functionality um and they want it to.

You know operate and and work basically, you know uh honestly, my own pride gets in the way of some of this stuff and i spend a little bit more time trying to make things look prettier than the customer. Probably even really wants you know so um. You have to understand that when you're doing these kind of installs, okay uh, you know and everything's just basically practicality. You know um, i did uh, you know rigid, pipe or or hard drawn.

You know acr for the liquid line, because i couldn't get it straight enough with the soft copper, but i was able to do soft copper for the 7 8 because it was pretty straight and then it was really hidden behind the insulation. So it was no big deal. You know, nothing really crazy happened with this. There was no real big hurdles.

It's really nice when you have the ability to do this over multiple days, like i did this one uh. You know most of the installs that i do you have to do them all in the same day. Um. You know these.

These walk-in installs from start to finish are usually taking us anywhere from 35 to 40 hours. Man hours between you know receiving the equipment loading. The equipment, picking up materials - you know on-site time, follow-up, visits and stuff like that, because a lot of people always ask me like how long these things take, and typically it's it's around 35 to 40 hours. Just depending you know.

Sometimes it goes longer if it's a crazy install, but on the really easy ones it's usually shorter. You know. Sometimes you can get them down to 30 hours depending on how easy the install is and stuff like that. Another thing is: is i always always try to change the line sets uh.

Whenever i do these jobs um, the customer doesn't expect that we change the line sets, but i'm kind of looking out for their best interest. If we're going to, you know, replace the evaporator and the condenser on the roof, we're going to go ahead and run a new line set too through the attic. I try to utilize soft copper as much as possible. It saves a lot of time.

It's just you got to be careful about using soft copper, especially when you're running in attics, and things like that. You know you want to make sure that it's not going to rub out on anything. Sometimes you have the time to support it. Sometimes you don't, but you just got to make sure that you install it appropriately.

You know. Sometimes you can come up with some pretty interesting ways when you're in an attic where nobody's ever going to be again to support them. You can use nylon straps with saddle hangers, you know and hang it from the the ceiling or the yeah, the ceiling, joists and stuff. So there's interesting stuff you can do but uh we did a 448a installation and for those of you that aren't familiar with 448a refrigerant for the medium and low temps, get used to it because it's coming across the united states right now, california's been on a 448-day.

Kick for about a year and a half now where we have to use it on all of our new installs and retrofit installations and uh trust me it's coming your way. So 404 is out the door when it comes to medium temperature and low temperature installations on reaching coolers and everything you'll start seeing it bounce supermarkets, it's already gone. They already have to go to co2. There's a lot of new uh changes coming down the pipeline.

For you know, global warming, potential and stuff like that, so be prepared for that stuff and start reading up on it. It's actually because a lot of people are really jumping on the bandwagon of the 448a equipment. Right now we're running into a problem with my customers: supplier uh, actually getting equipment because uh now it's you know more than just california needs 448 448-a equipment. It's really starting to become a big thing in all the restaurants across the country, so in supermarkets and convenience stores and everything so really really appreciate you guys making it to the end.

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So there's a link to the hvac overtime youtube channel. In the show notes of this video, i really really appreciate you guys and we will catch you on the next one.