CAN THE BEER WALK IN BE TOO COLD??
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- Опубликовано: 9 июл 2024
- This call really had me working, one thing after another the issues kept coming, let me know what you think down in the comments.
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Teaser 00:00
Sponsor Card 00:20
Original symptom 00:30
EEV problem 01:19
WTF moment 04:03
QRC Board self test 09:15
EEV coil test 10:12
Brazing EEV 11:29
Evacuation tips 15:52
Success ?? 18:56
Another symptom 19:59
Head pressure control valve problem 27:16
Return visit 33:03
Closing words 45:21
"Its not a slave"
For a split second I thought the machine was starting a uprising.
I'm a truck driver that works in the areas that you service. I recognize a lot of the areas you work in and I'm always looking for your van lol id be super stoked if i bumped into you.. you've taught me a lot more than I already know. And I'm very grateful for that. Great work
I've lowkey got no clue what's going on but I still love these videos, very entertaining, informative, and educative! Thanks for putting up these videos to RUclips, man!
Some twit found the secret self-destruct setting to an otherwise very reliable refrigeration system. Basically having the system set to 37 defrosts a day combined with a weak electromagnet (that slides the valve inside the tube open and closed) grounding was making the compressor fight the defrosts non-stop. The compressor won the battle but lost the war.
@@prjndigo also the bit of copper on the valve seat
Same bro, I’ve been watching for a long time, and I’m still learning every time.
Welcome 🤗
Thanks for sticking with the filming on this one. Never are one of your videos too long. If I see a 50 minute video post from you I know that quantity WILL equal quality, not just filler.
Obviously someone set the defrost cycles to 37 thinking it was a temperature setpoint. Also, there is no way a magnetically actuated solenoid will suffer coil damage due to valve problems. The coil doesn't even 'feel' the valve being there!
31:34 it’s incredible to me how such a tiny piece of trash can cause such havoc on an HVAC system. Exemplary work!
The itty smallest gives the technician hell sometimes!
Christ this video was brutal to watch. The highs of replacing the expansion valve, the lows of seeing the bypass triggering, the further lows seeing the outdoor light gradually turning to evening with no end in sight.
Truly a saga any engineer knows :(
My engineering mind has ruined me, but I have to say it. Heat doesn't rise in a solid. "Heat rises" is a saying that people use because in a fluid, the higher temperature fluid is less dense, thus it is more buoyant and rises above the more dense fluid. In a solid, heat transfers from high temperature to low temperature, regardless of height (to a reasonable extent). Not trying to be a smart butt as you are 10x the technician I would ever be, just spreading some information about heat transfer. I am about to graduate with a Mechanical Engineering degree, and I watch these videos to learn how I can be a better engineer in the future by keeping the people who maintain the equipment happy. I love your thought process on the "whys" of failure, as the engineering students I am around rarely think that way, and that's a crucial part of why we go to engineering school. Keep up the videos; whether you're helping a fellow technician, an engineering student, or simply entertaining the masses, we love it!
If I have to heat 2 joints, one above and one below, are you saying heating the top one first doesn’t delay the amount of time the component in the middle is exposed to high temperature? If I heat the bottom joint heat rises while I’m brazing then I go to the top joint and there’s more heat all around. You’re saying the metal heats from low to high but there’s a flame that sends heat out and up and he’s trying to minimize his impact all around him especially whatever component is in the middle. But maybe I’m wrong.
@@abujamie3763 The air around the top joint will certainly be warmer than the air around the bottom joint, but the heat transfer via convection is quite minimal in the case when compared to the heat transfer via conduction through the copper since copper has a very high thermal conductivity. So what it really boils down to is the closest joint to the one you are currently heating will generally be the warmest. If you have two joints each 6” apart on a vertical pipe, then yes, the top joint will likely be *slightly* warmer. But the point in all of this way to say that heat doesn’t rise, heat transfers from warm to cool body. It just happens that in fluids, cooler, more dense fluids settle due to density differences.
@@andrewpierce2213 Correct me if i am wrong, heat does not rise, but hot air rises.
@Andrew Pierce Thanks Brother...
AIr convection upwards will cause a little heat to increase on the uphill side. It's not a huge amount but if you heat the air, which rises and travels along let's say a rod or pipe, it will conduct a bit of heat back into the pipe on the uphill side. In the solid, inside of it, yeah...you're right.
Nice to see someone using proper refrigerant practices and diagnostic procedured
Watching as your acetylene ran out was some of the most suspenseful youtube I have seen in a while. Thank you for the educational and informative commentary on what appears to be an extremely complex system.
Haha.. I was really pulling for him. C'mon gas, hang in there! But yeah, at a certain point, you're going to end up with a less-than-stellar outcome that takes longer to do, from trying to make it last than just giving up and getting a new tank. When he threw in the towel, I was disappointed, but had to agree... that was the right call. (But would you expect less?)
I only just discovered this channel yesterday and I know absolutely nothing about HVAC (other than the things I've seen in the 10-ish vids I've binge-watched in the past 24 hours, lol) and I have to agree. I have _no_ idea why I was feeling on edge as he was trying to get that last braze finished before the acetyline ran out, but I was definitely in suspense, hahaha.
I'm fascinated at how easily I've become _so_ engaged in this subject matter that I was actually feeling tense IRL like "oh man, dude's been there all day, dealt with several issues, and now this, is he gonna make it in time?!" lol. I had _zero_ experience with this stuff prior to yesterday, so you'd think it'd just be a curiosity to me (as opposed to a source of tension, lol).
The mind is weird, and this content is awesome.
The best HVACR in the business!!!
No one cares
Ok
Glad to see you are back up and running. Great Video.
"37! The unit did 37 defrosts a day!"
"In a row?"
KoL?
@@ICountFrom0 Veronica.
And 45 minutes each, this unit was in defrost 27.75 hours of the day
@@jasonmurawski5877 lmaooooo
And the box temp was still too cold????
That copper chunk in the headmaster was a special gift from heat craft just for you!
I moved into the shop fabricating duct work 6 years ago. These videos bring back fun memories. 🤘🏻
Good show. When I run into problems like that, I start worrying about my skills. I end up tearing everything apart to find what caused the problem. I have seen some really strange things happen, but never like the time you found the red plastic cover in the Rotolock . But have found copper in many places it should not be. Keep up the good work. I love your show
Chris we all have these sorts of days, you find one problem and you fix it, then it shows up another problem which then takes you on to a further problem. Good call on staying the course and chasing the ghost in the machine.
Thanks bud, I am going live on RUclips this evening 8/9/21 @ 5:PM (pacifc) to discuss my recent uploads and answer questions from the livechat, RUclips comments and emails, Come over and check it out ruclips.net/video/exNsJRteDOU/видео.html
Damn it man
That was a hell of a ride.
A good example of what can possibly go wrong on a simple service call. 😉
Loved it !!!
Way to push on.
It happens a lot more than you think!
I really enjoy your videos. I actually have no interest in commercial HVACs at all. I do enjoy following your logical troubleshooting. I have experience in auto mechanics, low voltage circuits, medical care and computer networking. The techs are totally different but the process to resolve issues is very similar. You are a good diagnostician.
That was a hard one! Great job! Don't be worried about the compressor! It's a scroll and it can take it! When Copland first came out with the scroll I went to a RSES demonstration of the scroll compressor put on by Copland! In one of the tests showing how much tougher the scroll is over a recipricating hermetic compressor or a semi hermetic compressor and a open compressor a test was ran by Copland! They fed bbs in to the compressor and they shot out of the compressor because the screw inside of the compressor has an ecentric that gives when things go thru it like liquid refrigerant so it will take alot of abuse and has now become a industry standard! Remember the Dunham Bush screw compressor that was so durable that it would run for over 30 years with no problem! That is where the technology for the scroll came from! But unlike the screw compressor the scroll is made of pot metal inside and wears away eventually causing it to lock up or the shavings wear thru the armature and short out the compressor! Thanks for another awesome video! In my opinion the turbo torch would have made that job alot easier and faster! I did alot of soldering over the last 35 years and always preferred the turbo torch because the flame wraps around the pipe for even heating and you use different tips for different sizes of pipe! Also it's more economical and you don't have to worry about running out of oxygen and it's lighter and easier to handle as well!
It’s amazing how everything now a days needs to be run by a circuit board.
I remember years ago working on a large 12 cylinder Cat generator. A few sensors for low oil, hi coolant temp. If one went bad, you can temporarily jump it out in an emergency if you absolutely needed it. Cat updated it with circuit boards that controls everything. No more jumping anything out and if a board went bad and you didn’t have a spare, no generator. Sorry for the long rant , but sometimes simple is just better. Don’t even get me started on lighting........
@@blockisle9 Don't get some people started on Cat either.
Yeah eventually the hair dryers and the phone chargers, etc will have one too... Oh wait 😂
Crazy how the USA is still oldscool, in europe circuit boards are standard for at least 15 years, very reliable and easy to use if u know how 🙃
as an engineer it is awesome, every circuit board is a robot that does your bidding so a person doesn't have to. I bet repair techs have a different opinion though.
Just look at the fact you can read all the parameters on that little display
A day in the life of an AC tech great video after 20 years in the trade it’s great to follow a real life service call
Thanks
I am not an HVAC guy but I worked in restaurants for 10 years. Working with Walk-in coolers air conditioning units and especially ice machines. If I had some of this knowledge back then there would have been fewer problems and we could have recognized when things were about to fail, especially the damn ice machines. Thanks for the videos.
I'm a Chef that loves your videos, it's been helping me understand my HVAC equipment a lot more, and I feel more competent at communicating with Techs about what I think is going on with my equipment. Thank you for all your content, and I love seeing the quality of your Workmanship!
Great job staying focused. Keep up the hard work. Much love. god bless you and your family.
I always hate when the torch runs out of gas on the last braze joint. You have the schlep everything down to the van and back up to the roof. The days just always seem to get longer. I appreciate and thank you for sharing your experience with us.
What a pain! This happens a lot! What I mean is that you think your done...and BOOM, rare situation pops in!
Glad that your real on your thoughts, the way that you record it's like a real day on the job. Nice And THANK YOU
Hope You charge the client real good. Lots of work and material there. 💪
I actually dig the longer videos. I’m a residential HVAC tech and seeing the refrigeration side of things are interesting to me and I get a few tips on working on the commercial package units, for the few that I have. Keep it up and I’ll keep watching. Thanks for your dedication.
This video is a perfect example of what can happen in commercial refrigeration. Great job on diagnosis. I faced that board/valve early in my career and it threw me for a loop. Great content
I really enjoy watching you trouble shoot and enjoy your videos. Personally I enjoying trouble shooting difficult issues that others can't figure out. My line of work is very different from yours. I really enjoy watching you trouble shoot. A long video and I know it was very frustrating issue but I really enjoyed it.
The very first time I ran into one of those those systems was at a Little Caesars. I was on the horn with tech support, and told them what I had found and followed their directions, and they said to replace the solenoid coil. I asked what could have caused the coil to fail. Tech support told me they had a run of bad coils. Ok, it was still under the warranty so we do what they say to do. So I changed the coil. Unit was working great again.
Three months later, same thing happened. This time tech support tells me to change the EEV, EEV coil, sensors, and the board. The manufacturer's paying for it so Ok. No more problems from the system to the best of my knowledge.
Given what you found in the headmaster valve, there may have been smaller copper particles that got to the EEV and were jamming the valve up enough to start burning out the EEV coil.
I think I will miss the big Sporlan TXV tests with the magnet on the valve. A good solid fast "thunk" and you know it's just a burned up coil. And a weak quiet valve would get replaced or rebuilt.
Oh well, that's progress. So they say.
Why am I watching all these HVAC videos? I don't even have a central unit or any major refrigeration. I must say though, rather interesting. I love problem-solving and love "fixing things", and your videos are loaded with both of these.
Carel e2v coils fail often here in uk (aldi supermarkets). When the coil goes faulty the body is stuck in its last known position regardless of what steps it thinks it’s at. Probably just a new coil needed but nevertheless job well done. Keep up the good work :)
...and of course Carel will just refuse to sell the coil. Even if the EEV was mechanically stuck, it really wouldn't cause the coil to burn out since the control doesn't continuously keep stepping the valve.
@@AmericanLocomotive1 is this true? does Carel not allow customers to buy the coil separately?
The simple answer is “ That Beer can NEVER be too COLD !!! “ Good vid ! Yes , that scrap of copper was from someone cutting or Reaming a Pipe poorly and Leaving a Shaving hanging inside the Pipe. It finally detached it self from the tube and blew its way down the pipe. Great find !
... until the beer comes out in solid chunks! Here... eat your beer.
I feel you man. I've been doing commercial refrigeration for 15 years. This one had me frustrated watching. Keep up the good content man. 👌
When the beer cooler decides it's a beer freezer. LOL
Your watch makes it into view at the 19:(02) minute mark. I can't be the only one who said that is cool, I want one! What is it? If its Apple , not for me. GREAT video!! Even the calls that seem to test you, you still have a great way of explaining your troubleshooting process! That, to me is probably one of the more important things you do! Its to easy for someone without your experience to get overwhelmed by the scope of how the entire system works and not focus on step by step. For me, that's why I love watching you work!!
It's a Samsung Galaxy active 2 watch with a supcase band
The thermo imaging camera would have helped hear to see the head master bypassing nice job l learned a lot here I was ready to replace the compressor again nice job thanks for the video
Hey Chris, i been repairing lab chiller in my company. They use EEV. When i faced the symptom that temperature keeping lowering although u see the step is zero in your PCB, then i replaced both EEV coil and valve together. But what manufacture say is always keep one spare EEV coil to comfirm whether it is coil or valve issue. They dont say what cause EEV coil to fail. They say it is either coil or valve when u r having temperature unstable problems.
Chris, I had this same issue head-master by passing but only every now and then and then the internal scroll leaked by and fought the pressure control, this was new install only two months old and we had to install two pressure controls. Heath Craft just sent us authorizations to replace the whole condenser, everything worked like it was supported to ,for more then 2 years after that.
These videos make me want to get into HVAC!!!
You say that now.wait till you get a call like this at 10pm and have to drive 0ne hour and work on freezer all night and while you working on it another emergency call comes in and you the only one on call. Refrigeration is tough .
@@richardharmon874 You get two emergency calls at once? Easy, you do the customer first that pays their bill the fastest.
@@robertreite4630 👍
You definitely should! It's an awesome and rewarding job. I'm 21 and I've been doing it for a year now and it's one of the best jobs to have.
I know this video was a long one but your long videos are the best ones I’m sure it was a pain in the ass to deal with all that but it makes for a very good content thanks for passing on the knowledge
Then I'm thinking probably the board. Then I hear it from you 2 seconds after I continue the video. This is hilarious! Somebody stop me!
That was a tricky one Chris, no doubt frustrating for you but these are the ones we love as techs... great work mate 👍🏼
I often find copper trash in systems from the installers who say you don't need to ream tubing,or try to use something other than a dreamer to clean up their cuts.A good pencil teamed is like $8 to $10,and it will last a long time.
this was a mess but it gave us a extra long video and i enjoyed every second of it :D
Pre-made flares? Blaspheme! Jokes aside I avoid pre-made flares because they tend to break if you re-seat them as low as 3+ times. It's just the way they are manufactured making the back of the flare thinner. Love the videos btw. Its priceless exposure for resi comfort cooling techs wanting to learn more about commercial HVACR. Definitely turning my apprentices onto you.
I have been repairing refrigeration, HVAC, and ice makers on commercial fishing vessels for almost 30 years. Though some systems are different, like using water to cool the condenser as opposed to air. I have picked up many good tips on checking certain components. Always try to keep learning. Thanks for sharing this great content.
Thanks for the video, perseverance paid off.
I've had that happen several times with those txv and it was because moisture got in the head of the solenoid valve. If you run across that problem again take the head off the txv and dry it out good then put it back together. I've done that on about 6 of them and it fixed the issue everytime.
I have seen this very thing about year ago. it can drive you crazy. Great job.
Thank you for this video. Learning a lot.
Your persistence is commendable.
Like someone said, I dont know anything about these types of things but I enjoy watching the videos.
You make a bunch of great videos. This by far has been my favorite. Thanks
Thanks again, Chris. Love your videos. Truly.
Great work as always and thanks for the content stay safe and take care
Love you videos, I’ve been a residential tech for 8 years and just made the jump to commercial earlier in the year and this helps me learn.
Those valves are easy to damage during soldring. They don't take that much heat.
You should get the service magnet from Carel. Then you can manually open and close the valve.
Had one on a large CO2 system, where the controller was off for 2 weeks, and the coil still iced up. It was with a PJEZ0000C controller and a EVD driver module.
Another awesome video Chris !!
Always big picture diagnosis. Good job brother.
I learn a lot of good things from that video.
This was a good one! Thanks!!!
i haven't worked in 20 years, I fell from a vertical ladder and became creped. I loved my job and watching your videos fill the gap from then til now. I'm glad i don't have to work on all the expensive electronics. I worked on electronic in supermarket and delfield which had the mark 2 board which had defrost and ice machines had boards. you're showing VFD's and electronic txv's that cost, I would hate to tell the customer the prices.
Great video! Thank you for filming your thought process. It really makes for a good video and I always pickup on some information.
Thank you for your videos it really helps me to figure out when I encounter similar problems.
Excellent video, great info
Great video. Thanks for sharing.
Love your videos!👍
Honest HVAC technician till date without any bullshit talks. To the point jobs.
🤔
Excellent job! BIG PICTURE!
Crazy Chris...I had similar call this week on the Beacon II but for a WIF. My call had the valve “sticking shut” - system would pump into a vacuum after first thinking we had “bottled gas” scenario (Mi winter). The “espn” is the “count” of refrigerant the EEV detects. In your case you read 0 but we’re actually wide open. In my case it read 128 per manufacture but it was actually closed. Stumper to figure out at first....GRRR! Heatcraft had me unplug the harness and turn the valve 6-7 times clockwise. My “espn” went to 144 which was enough to allow the system to run while I await the part/kit to arrive. Holiday weekend, won’t be here til Monday. Also, FYI, Heatcraft says to deengerize system, wait 3 minutes, and reenergize - then hit “reset time” to allow board to reset to factory parameters.
“Why did it fail?” My thought is typical “restriction” - crap in the system.....
Charles in tech support is very knowledgeable and helpful!
Also; we have an anti-shirt cycle fail save on our system. Have to adjust to .03 while service then set to 1-2 when pressure control is adjusted. We set to 15-10 but again also have 5” of snow...
Good call....video will be viewed by my techs going back to the job Monday! Thanks 😊
Happy New Year!!!!
And....we added a fan cycle control to by pass the headmaster. We need it for pump down during cold weather.
Wow, that was some job! Fantastic job! well done 👏🏻👏🏻👏🏻👏🏻
Video of the year , even with everything happening still was able give great info
Great video thank you so much!!!!!
I understand what he says but I don't know what he means. And I still think these videos are amazing content to watch. Keep up the great work!
I show your videos, particularly this one, to my techs here in Asia.
Big picture through small details. This video is super instructional.
As always, thanks Chris. 🍺
awesome video, shows the problems you run into when working with these systems.
love this videos tnx
Thanks man for what you doing
Another excellent job and video 👍👍👍
Wow I couldn't believe that you had that much patient with this job 🏃♂️🏃♂️🏃♂️
love ya videos , keep them coming .
Bro..... there are few who understand what it takes to be successful in this field. This video captures a part of it. I watch your video on my off time. Thanks for taking us with you on this one. We really appreciate it.
The best analogy I can think of to explain the Wet Rag heat compound is it's a battery that deals with heat instead of electricity...
You put it on and it charges up as you braise the joints but eventually, it can't absorb anymore heat - the tank is full and it starts discharging that heat into whatever it's in contact with, either the component it protected or it's storage container...what receives that discharged heat depends on whether or not you cleaned it off the component soon enough...
Great job and video like always
I have watched the video to the end, great work and great skills man.
I fell asleep a couple times but I slept-learned what you were doing and oddly followed along the entire time!
Good job Chris been in a minute! Since viewing! Stay safe got Hurt bruised knee cap fell down steps coming down from roof!
I think you did a very good job of all your diagnosis, I’ve had them every so often just like what you had! Hair pullers! Multiple offenders that throw you off! But your persistence was correct! That compressor within a few months weeks to a month or so is going to crap out on you. Seen it it too many t! This one is very good teachable moment! Keep it up Chris! Keep plugging!
Love the “WTF moment” chapter 😂😂😂
One of those calls man !
You gotta think fast, think logically and act quickly. 👍
Watching from Australia love the vids mate
Great video Chris. That was a hell of a call.
Wauw Chris, hat off to you for a great job..
Pro diagnostic 🥇
Best ever troubleshoot steep u are the best good luck thanks for sharing u knowledge.
Love your Show bros.
"Tried clipping the tip but that didn't do it."
It so rarely does
You are a thorough kik ass tech i just learned a ton of shit from you i love refrigeration but have only done simple fixes you are the man im going to subscribe!
54 minutes... awsome 😃
Sounds like you're having as much fun as I did today I live in Greenville South Carolina and we just got slammed my hurricane Zeta trees down everywhere big tent no longer big Palace crafts but Keep On Keepin On