So we have a split system A/C that has a refrigerant leak and some undersized supply duct work, I found the leak and measured for the replacement duct work so we can quote the job.
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We've got this little split system here, that's not working correctly. The system looks like it has a refrigerant leak and we've got some other major installation issues. We're gon na I'll, show you here in a minute, so I have recently topped off the charge on this guy. So I'm coming back today to do a leak check on it and then to address the other major issues we have with the installation of this guy from the looks of it.
This is a little 5 ton, 13 seer, it's an ICP brand, one of the carrier. Knockoffs all right, so we got some problems here, and this is what I'm talking about. This is a 5-10 unit, one 12-inch duct coming off of it and that is it our static pressures through the roof. Instead of crushes 0.90 mind you someone's trying to shove 2,000 CFM's through one 12-inch duct all right, so we've got massive the airflow problems here.
So what we're gon na do now that we've gotten some baselines and I've measured everything, and so we're gon na go ahead and tear it apart and try to find a leak can't believe that 0.92 inches of static pressure, total external static. I should say cross that guy 33 degree temperature split. This thing is just you can't even blow the air. You know it's just barely running all right, I'm gon na tear it apart, he's leaking underwear.
You can pick it up ain't, nothing! We could do about that. That's in the middle of the coil, this guy gets a new coil boycott the coil. We can put some ductwork get the fixed I'd like to get a bigger filter than one inch on this guy. So I'm thinking to put a 90 on this return, bring it down, so we can put a two inch filter on it.
This is like a landing area where we go to the main roof thinking of flipping this air handler around. So you can access it from this side. That's my return right there. So I'm thinking about putting a 90 on that dropping it down and pulling air from down there and then, on the other side of this wall, I have a little bit of room to run.
Some more supplied ice won't beat. I won't be easy, but I can run some more supply ducts. That way I can get three or four more 12 inches or maybe even make that one, a bigger like 18 inch, maybe make the hole bigger or something so I'll. Do that and then maybe put a supply up in this area? Yes, let's do a little recap.
I did a return visit on a split system that had a refrigerant leak. The last time I was out here going to service on something else. I noticed it was load, it was all iced up. So while I was here last time, while I was working on their other AC, I shut this one down.
So that way, the air handler would run and melt all the ice, and it did so and then found that the unit was low on gas, topped off the charge, got it running and then got them to create a new work order. For me to come back. So I came back today went through diagnose some massive air flow problems, twelve inch supply duct for a five ton unit, and that is it like. I just can't believe that I cannot believe that someone would think that that is. Okay, one twelve inch supply duct, absolutely asinine anyway, so we're running static through the roof. It's like an inch in some change and also the unit the way that the whoever installed this installed it. They just have an open return on the bottom, with just a one inch filter, well that one inch filter is just sucking right into the unit because it gets plugged up too quick. So what I want to do propose to them is to get them to.
Let me fix the supply. Duct work, add some more drops in the kitchen over the place, get that going and then also put a ninety a sweet, a nice smooth. Ninety on the return, so that way it's pulling from down in the kitchen and then be able to put a two-inch filter on it, can't really put anything more than a two-inch filter, because if it was a residential thing, I would go in and put a bigger Filter on it, but this right here this filters, gon na, be changed. Basically, every couple months and it's it's gon na be part of a contract price and we can't put a 4-inch filter on there, so it just wouldn't be feasible, financially, so we'll just put a two-inch filter on it and then, but the big thing is is I Found the refrigerant leak, the refrigerant leak is in the middle of the thin pack of the evaporator coil on the bottom side of the a-frame triangle-shaped coil.
So it needs a new coil. So at this point I'm thinking in my head, it might even be easier just to change the air handler because it's just a fan coil, so I'll, look at prices and stuff I'd be honest with you. I don't even know if I can get a 13 seer. I don't really deal with the residential stuff very much.
I don't know if I can get a 13 seer in a fan. Coil right now to replace. What's here is I'm gon na leave the condensing it on the roof, which is a 13 seer, so we'll see if I can get a evaporator and it's cheap enough, then I'll just put the evaporator in will flip the air handler around. So we can access it from the landing instead of having to climb over on the other side, or we might just put a whole new fan.
Coil up in there and same thing flip it over. So we can access it from the other side and then fix the ductwork issues. That's pretty much. It we'll submit some quotes and then see what happens.
No secondary pan ether
Your name is Chris and you look like an obscure guitarist I knew from psyOpus Chris Arp I’d like to think your both. Cuz your my hvac hero and he was my guitar hero so I would like to think your the same guy even tho you aren’t in Rochester New York and he is lol
ICP brand? Does it use Faygo as a refrigerant? 😀
This is criminal.
Froze up a few too many times, eh lol
Which refrigerant leak detector did you use in this video?
Hi Chris, I stumbled across your channel. My daily fix is computer repair, windows , Mac based, hardware and software. I have to tell you who ever trained you did a amazing job. You need a high intellect to clearly understand these systems. My purpose in watching is to watch the diagnosis in real time. I do the same in my business. I tip my hat to you. Continued success and production of quality videos. Neal in Atlanta
Is because you have a supply duct is 12" that's why you have 0.9 H2O " as total static external pressure?
I watch your videos quite regularly and it seems like an area I would love to get into. My question is where do I start? I live in Tucson, AZ so there's a lot of HVAC companys. I'm 20 so most companies don't want to insure me but I don't want that to let me down. Anything helps man. Keep up the videos!!! You're videos have taught me so much
Hvac job
I'm a residential service technician and have a little experience with light commercial. Your Videos are great. Everything is well explained and easy-to-follow. I've learned so much just by watching a few videos!
Keep up the great work I'll be watching all your videos!
Did you end up doing this job?? Are you in Nepean ?
Topping up a system with blended refrigerant…
Did you ever get the job? Interested in how it turned out Service area Ottawa??
Love ur videos brother u are a true hvacr technician. I hope 1 day I could be as good as you, and hopefully link up with u to learn from u and work with u. You really inspire me
That’s crazy small
Looks like the butcher work of Coldstat Refrigeration in Paramus.
Wow Australian and American HVAC Systems are quite different.
Great video. Wow 12" duct. ICP. MY company used to put in a lot of Heil equipment and I kid you not we had so many evaporator leaks on their equipment that we had a constant huge pile of evaporator coils to change on them so we stopped putting it in residential applications all together but we still use Heil and Carrier sometimes in commercial applications. All the manufacturers we currently put in residential applications use a fully aluminum evap coil and we have much much less evap failures
Did you ever do a follow up to this?
I can just hear the owner screaming no! no! no! to all the duct work and to just fix the coil, maybe…. =(
Especially since its just AC and most owners could give a crap if their team members are cool or not, as long as product doesn't get wasted. >_> Are you in Barrhaven ?
Wayy oversized for the job. 2.5/3 ton system would do the job that monster is doing. Are you in Kanata ?
lowest bid gets the job strikes again!
I cant find a follow up video to this? Did they ever let you fix it? If you a video for add a link. Thanks 👍
$4850
I don't know how people can afford to be that cheap!. It's too costly!
Which electronic leak detector are you using for 410A? I have the new H10 Pro, and so far, I'm not impressed when it comes to 410A
Looking forward to part 2 of this video…
Are permits not required when these new units are installed? I'm guessing they are not used so much in some areas. I would not think any building inspector would sign off on something so off parameters? Enjoyed the vid! Appreciate your shared insights! I had a leaker today. I think might be in the coil as well that I need to go back to recheck ~ Searched for it fairly thoroughly today but did not find it with the small amount of pressed time I had available today. Future journey continues on!!!
Running down the leaks (R22)(leak Searching)! Going wherever it beeps, Running down the green! (R22) Woohoo, Yeah!
looks like someone paid the lowest bid,get what you pay for!
You are running over an inch of static and there isn't even any return duct connected to the air handler! I could only imagine what it be if there was
Hey Chris, I just started my first commercial refrigeration job yesterday. Can you point me to a good set of analog gauges? I don't know which ones to get. Service area Orleans??
Can you go with a smaller capacity air handler and minimize the duct rework or is the condensing unit too big then? Out of my field so forgive the question if obviously stupid.
What a botch job with that AHU! Almost like they had to try hard to make it unserviceable with its orientation and incapable of delivering its capacity with that duct design. Sounds like you have some good ideas to rectify the situation though!
What a hot mess of a install. 33 degree temp drop. Never knew that was possible? Thanks for sharing your videos. Hope you get the AH changeout job.