THE COMPRESSOR SOUNDS LIKE IT HAS ROCKS IN IT
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- Опубликовано: 26 сен 2020
- We found that the compressor sounded like it was pumping rocks while doing a normal PM service, I came out to check it out and this is what I found.
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Really, really liked the tear-down of compressor. All the "normal" problem solving is interesting, but getting into the details of a normally unseen component was great! Well done! Keep 'em comin'.
There is a video of some Indian guys repairing and re-welding them.. Video is not in English but its good. Pay not attention to the safety violations ;) ruclips.net/video/SNTib8YyFWo/видео.html
The video is from Pakistan
I could not have predicted how much I like watching these videos....
I know! I have ZERO knowledge in HVAC, but these videos are fun to watch.
Never thought I’d love doing it as much as I do but here I am on top of a walk in on Sunday eating lunch and watching this video lol
You and me both brother
I just enjoy watching skilled tradesmen do their thing. You also learn a lot.
This is my job in Kuwait, I did Not know this would a satisfying thing to watch.
Dad was an Aero Engine Engineer for twenty eight years we had many a discussion on the effects of destructive behavior of vibration on critical aircraft parts. Everything from chafing, erosion and failure of said same components. I'm going with the bad mount.
Hey Mate, I'm a second generation refrigeration and air conditioning professional with almost 50 years' personal experience and I find your videos really interesting. Keep up the good work!
3:07 "You have to be careful with these" ... Code for "Not OSHA approved" ? Lmao...
Im glad to see that no matter how many years you do this the "hope nothing blows up" never goes away when you hit disconnects. I'm a 3rd year and say this regularly.
I find myself saying this anytime I fix something, doesn’t matter what it is. My wife used to get anxiety but after 15 years she now knows “hope nothing blows up” simply means the job is pretty much done.
HVAC School brought me here and I'm grateful for it.
Cool bud glad you came, did Bryan mention something recently or was it an old video and or article?
@@HVACRVIDEOS I'm actually transitioning into the trade and I've been listening to the podcast, I've watched more of your videos but I can't watch them at my current job but I can sneak in a podcast and I believe it was a older podcast where you guys were breaking down some basics and best PM practices
“Hope nothing blows up” when switching breaker on is so relatable 😂
This tear down reminds me of Aussie50, who did a lot of tear downs of HVAC stuff. R.I.P. old friend.
Oh yea... I really miss him
I miss channels like his but with youtube recommendations being total garbage its impossible to find those small cool channels like that
He was great
RIP :((
Aw man, I remember his videos
Sticking a strong magnet at the bottom of that compressor would solve the issue :) no more rattle sound. I'm cheap.
😆..... Good one . .
You must be a restaurant owner 😂
I'm going to give that a shot
Slow metal fatigue due to vibration. If you look at the metal break you'll see 'waves' as the crack grew and the steel stretched and then sudden a clean granular area when it finally failed. I imagine the compressor probably wasn't balanced properly and had a harmonic that was ultimately destructive for those brackets.
I came here to write the same thing and saw you already wrote it 3 months ago. lol.
I’m third on the list, 9 months late.
@@Sidicas Heh. Seems like you got Craigified!
superb analysis
Great job! I am 3000 miles away. Here, that job would more than likely go out for bid to at least 3 contractors. You’d be dealing with a facilities manager or broker who has the job of making sure you do not make any money. He would take the bids and start calling working one bid against another. In the end, the guy on the truck would being doing as little as possible because his company told him he had 4 hours total to pick up the compressor and turn key the changeout. Some “woman” in the office screws up the quote and they will still want the same profit. An example is I saw a company do a nearly $18,000 30 ton compressor change out and did not even change the filter drier or the contractor. Techs in the field are told exactly what to do and how long they got to do the job. Some companies even tell the tech what roads to take to drive to the job. They have sophisticated GPS driver monitor systems that tell the office has fast you turn, if you slam on the brakes, where you are, where you been, and have a camera pointed at the driver. Mom and pop restaurants will not fix anything that is running, and when they do authorize a repair, the company needs a team of collectors working the phones trying to get paid. California, it must be different. Just about everything is brokered out here, one way or another. How you sell these job is a mystery to me. I bet HVAC companies are using your videos showing techs how easy it is! On large equipment facilities out here, in order to get customers and keep customers, either the salesman gave the job away, or, they send a saleswoman out to screw the customer, or, possibly they send the site contact guy to the Final Four Tournament or on a fishing trip. Everything is crooked, everybody wants something for nothing. It all flows downhill to the guy on the truck.
My dad once fixed one of these by using a shop vac'd bowl and a hole saw on the crown, then an old can-opener to finish the cut. Replaced the strap and ran off a cut ring to fit in the top, braised it on with the slug. It'd be a hard call but you'd have been known as a miracle worker XD.
Prjndigo I once moved headstones but left bodies.
The bracket likely broke due to vibration-induced metal fatigue. Ask the manufacturer.....it’s probably a known problem.
That's what I was thinking too. Once the small muffler tab one went maybe it caused the other to see vibrations at its resonant frequency. The breaks seem too be the same distance from the bends in both brackets as well so hopefully that design has improved in new models.
Joseph D too be or not to bee, that is the question.
When your unsweating a line that your going to re sweat as soon as it’s ready to come off move the heat back onto the compressor in this case and pull the line 90% out let it back all the way in then out again a few times this cleans almost all of the silver off of it making it fit better. You also risk tearing the copper if your heat control isn’t great. I love watching the videos keep them coming
I liked how you slightly heated the dryer replacement pipe just before doing the brazing on the joint. Reducing the heat sink effect of the pipe gives a way higher chance for a perfect joint. Great technique!
I was multi-craft electrician/mechanic in a paper/tissue mill and I did as you. No matter if it was a motor, gearbox, relay, contactor I would take it apart to see why it failed. I did it so much that my team mates nick named me "Tinkerbell" because I was always tinkering with something. I enjoyed the compressor tear down.
The black sludge is from the valves overheating. Lack of suction gas cooling
Yeah you are right with that I only hope that the compressor did not pump oil in to the sistem itself
Look at that valve's heat signs on those......
@@liviugabrielancutescu3644 the system is full of it it's circulating oil all the time. Drier catches most of it. A few drier change outs clean it up. That's what I learned over the years. The core type drier cleans a lot of junk out quickly but needs to be changed till the oil is clean again. I'm sure some of the dirt or solids get stuck to the bottom but if it don't get disturbed it's not going to get pumped out of compressor
@@royamberg9177 it's normal to pump just a small amount but that pipe if it was not kept there by the bracket the compressor probably was getting oil and pushing it
Possibly liquid slugging? Maybe caused by low superheat making the compressor pump liquid. The liquid doesn't cool off the compressor and overheats the oil and this happens. I'm not sure, trying figure it out.
"Actually it just satisfied on me"
Hopefully it took you to dinner first.
Erik Kovacs 😂😂😂😂😂😂😂😂😂
New merch: 'God, I hope she blows'
Yea... wth does that mean anyway??
Johnathan Waters think long and hard about it. 😀
@@Johnathan_Waters When a system is "satisfied" it refers to the temp control detecting the desired temp it's programmed/adjusted for. After the thermostat reaches set point, it opens phase to the liquid line solenoid (closing the valve) so the compressor can pump down and shut off.
I used to love cruise control... Nowadays, I seldom see the highway, and when I do, I forget I have it. When I do use it, I'm surprised it still works. LOL
Nice to see the teardown on that compressor, this is the first video I've watched of a teardown. I had always wondered how they made electric compressors, but never really researched it. Seeing the internals here, it makes perfect sense to me, and just as I type this it dawned on me that if you turn that compressor on its side, it looks almost exactly like an air compressor.
I don't know why HVAC still surprises me like this, it's tried-and-true old-school technology... Maybe that's because many industries don't take the "if it ain't broke, don't fix it" attitude.
DashCamAndy need never forget you have highway, as long as you can see.
Those crazy Santa annas will blow you away and then you drive by the windmills and see they are off and wonder. Nice job, looked like a relaxing day for a change.
Black sludge is from the compressor overheating check your superheat at the compressor If it's a Copeland compressor they want min 20F degree max 40F superheat at the compressor plus check your discharge temperature if it's at 250F oil starts to turn to acid.Make sure your condenser fan are working correctly.
The same guideline for L'Unite (Tecumseh) 20°C superheat max 40 deg
Black sludge can also be from aluminum wear. Aluminum oxide will look the same as burnt mineral oil.
Edit: that was definitely from overheating because the valve plate was discolored and it had carbon buildup from burning the oil.
I have learned a lot here. I will probably still call an HVAC tech to do compressor changes or charges, but I sure as hell soak and rinse down my compressors monthly and swap my air filters religiously now since watching this channel.
i have more than 10 years of experience in HVACR field, but you still teaching me lot of things, Best Wishes for you Sir From Pakistan
Love your videos. Actual hvac content not just selling sponsored tools.
I never had time to open up a bad compressor. It's nice to see what the insides of those things looks like.
HVACR gives bringing work home a whole new meaning. Haha. Thanks for the great video and for tearing down the compressor.
25:00 that's why we using at least four compressors in parallel connection Chris.
Had no idea why this video was recommended but find it oddly satisfying. Can remember when HVAC became a thing at the Vo-Tech schools. Never bothered to check into. Wish I had.
Had a scroll compressor on a Data server room unit that was making that noise, but cooling and running fine. I wanted to replace it before it broke but my service supervisor and manager said no. 6 months later someone else has taken over the contract and it went out. He said he felt it would have been best if I had replaced it in the spring like I wanted instead of middle of the summer. 🤷♂️
Morning Chris it’s gonna be a great video I can tell already
Pity about the wind noise.
Nice!! Love to see the inner workings of compressors. Good job.
Amazing it was still pumping. Great video, keep up the good work.
Great education on this situation. MADD props
I love the way you work
Thanks for cutting open that compressor. It was really interesting since I have never seen one of these open.
I want this comment to be as fair and honest as possible!
Having the benefit of watching you work as an observer over your shoulder its unfair for me to be critical of your technique and industry best practices. I absolutely love the imperfections and your frustrations at times!!!!! It allows me to strive to be better and not be so hard on myself as well. Cheers!
alimuh007 and likewise when I screw up, I shall say to myself: this is something just like what alimuh would have done.
I love your videos when you cut something open and show us how it works
Really enjoyed the teardown! I have cut a few different styles of compressors open in the past. I have not seen anything plastic inside one before, like the one you have.
The noise was probably from those sheared off brackets rattling in the bottom of the compressor shell, whatever, it wasn't right & the replacement of the compressor was the way to go.
Love the video. Really cool video of what really goes on inside the compressor
Great video! Excellent break down on taking the compressor apart. 👍
Nice video as always Chris! Like the tear down of that compressor, feels like ages ago i did that stuff myself. In fact it was in the 80's and 90's!
Great to see the inside of a compressor. Thanks for this info.
Thanks for ur time
"So we are going to jump on the Roof and take a look at this compressor" In comes the Coffeegrinder
Others have touched on this, but I believe I can explain what you are seeing with the oil and carbon deposits.
Was this originally an R-22 system years ago, before the condensing unit was replaced with an R-404 unit? The reason I ask is that it looks like there is mineral or alkylbenzene oil mixed in with the POE oil. Mineral and alkylbenzene oils are good oils when used with CFC or HCFC refrigerants, but not so good in an HFC system. Also, mineral and AB oils will decompose into carbonaceous materials at lower temps than POE oils, but even so they still requires discharge temps above the manufacturer's specified maximum for the compressor (around 225°F-250°F for the Tecumseh AV series). I think that is the case here. The compressor discharge temp must be well over the manufacturer's rated maximum in order to have caused the discoloration on the valve plate and the carbon deposits on the pistons and valves, as well as the sludge in the oil. High discharge temps are caused by the usual things: high compression ratio (seen in systems running low evap temps), excessive superheat, excessive high side pressure (dirty condenser, overcharge), etc.
What you are calling "copper plating" on that bearing end plate isn't copper plating. That is actually a copper thrust surface. The entire weight of the rotating assembly rests on that thrust surface, so copper is used as the bearing material for the steel thrust surface of the crankshaft to ride upon. Copper plating should not occur in a dry, acid-free system. If the system contains moisture and/or acid, that needs to be addressed immediately.
thanks for taking the time to cut it open, pretty interesting
BEST VAC I'VE EVER ACHIEVED,126 MICRONS! 4 Yellow Jacket 10 cfm pumps,and two Welch pumps 18 cfm on liquid lines over 4 days!
That white thingy was the sound that was heard when it was banging like crazy in its seat, just a matter of time before it got destroyed and spewed pieces all over the oil that plugged oil holes and the compressor got seized.
Im pleased that you've taken apart one of those "hermetically sealed" compressors. Luckily we had cut out units back when I was earning my certification. Vibration was probably the issue here.
I had never seen the inside of a refrigeration compressor and this just amazed me. Very interesting
Like your hvac videos
Well done!
Great video, thanks
Good Vid ! That oil in the Bottom of the compressor that ooks like 1 Thick oil and a Thinner oil is Exacly that. it is 2 Diferent oil types that Dont Completely mix. The thicker oil is the Mineral Oil and the other oil is either alka benzene or poe. old system and a few compressor changeouts = different oils in the compressor. Thats one of the Drawbacks of NOT being able to do oil changes on a Hermetic compressor after doing a compressor change out.
BADASS BROTHER! DOPE VIDEO. LOVED IT
This is pure speculation on what broke the metal tab on the muffler and the metal strap for the suction inlet, if the vibration pads where bad the compressor might have vibrated itself until it broke. Great video too, I'm an HVAC/R and commercial kitchen tech, I love your videos just because I love seeing what other people are working on and doing, I like hearing your thoughts on things as well. Keep up the good work man.
Great video man ..
I heard that same sound in a roof top hvac unit & they haven’t replaced it yet. Still running strong.
TIL that 86°F is not hot…
Meanwhile I would only be living at the beach at that temperature.
The thing that made me most appreciate cruise control wasn't the 3+ hour drives for work trips or even the hourlong commute to one project, though I certainly did appreciate it for those. What really made me realize how nice it is was having a wheel speed sensor go out and disable my cruise control during the project with an hour commute each way. I'll never take it for granted again, haha
Another great video and job 👍👍👍👍
Great video
Very interesting video I like it a lot thank you man.
Great video.
CheaterPlug, Best creative tool i've seen in a long while! thanks for sharing that one!
Wow that compressor sounds horrible and that wind was powerful excellent work and thanks for the awesome content stay safe and take care
It's pretty amazing how 85° in the desert isn't hot but 85° in the midwest specifically in Wisconsin is brutally HOT because of the insane HUMIDITY. Living next to all the Great Lakes is is nice but damn does it get humid. When it gets to 100° out here it feels like 140° and it's just wet and muggy like a swamp.
Great work. ✔️💯🏆
Thanks so much for sharing. 😉👌🏼
awsome video, love the beard growth, looks good on you!!!
Super interesting watching the teardown of the compressor. I knew roughly how they worked, but that let me put the parts to a.. face? I'm sure you know what I mean.
If you have clients that have major contactor problems due to sand/dust getting in them, ask them if they want you to reroute the contactors into a Explosion-Proof box mounted on the outside of the compressor cabinet.
Explosion-Proof boxes are what's used in places that have lots of fine dust (that tends to go BOOM if the concentration is too high and there is a spark, like Bread Flour factories and Sugar Refineries). They're the next best thing to Hermetically Sealed and no sand or dust is going to get in them to ruin the contactor...
These boxes can also protect mechanical time clocks too...
I dont know shit about AC units etc. these videos are just interesting and fun to watch, but that compressor seems like it was like "nah, f* this, imma keep going....". Props to the compressor.
Thanks again buddy👍🙏👏
That fan is going crazy 10:30
8:43 priceless afterthoughts "and don't grab a hot flare nut" as a fella who's worked many career/contracting fields, been there done that! fingers, hands, arms, legs, stomach, back, NOSE(yeah) etc.
poooooo happens, more when distracted
Nice job and video
This was entertaining, since I've never seen an AC compressor from the inside.
Good video Chris
That small tab looks like it mated that "muffler?" Thing to the suction line thing. Once that snapped, the muffler thingy could vibrate... and that vibration probably caused that other little bar on the suction line thing to snap. I'm sure those two tabs made a bit of noise at the bottom but those two side units are sitting right next to the pistons and now have play... so they were probably making the most noise. Yeah it works but you know that vibration would have caused another break that would have been far more catastrophic. Good swap and thanks for the dissection. I love seeing the inside of motors. Makes the video awesome to me.
I'm just following your nomenclature but I'd guess that muffler is something to do with the oil or discharge line but I didn't see how it came out of the case. I don't see why there'd be a "muffler" on an electric driven motor but i haven't a clue.
I've always called them mufflers as well. I once dismantled a scrapped compressor (which still worked. The whole unit was scrapped due to rotted coils) and ran it with and without the mufflers. It was much louder without than it was with. It's surprising how loud it is period running outside of the steel housing pumping air. Of course, when it's still sealed in the hermetic housing it's much quieter either way.
@@Matt_Deluca good to know, I really didn't realize they'd have one. Though I'd wager vibration dampener might be closer to the description but again idk
Super informative want to get my HVACR aswell
A great video! Liked the compressor teardown! I used to cut open scroll compressors and would usually find the failure was from them binding due to wear from the pot metal parts wearing out ! There would be a large amount of metal shavings in the sump! They're very cheaply made! I personally prefer the turbo torch because the flame wraps around the pipe and the silfos flows better and you don't have to move that bulky torch around so much ! The turbo torch tip is so much lighter to! I 💯 percent agree with you that the whole unit should have been replaced! You as the company owner should have convinced restaurant that it would have been much less expensive in the long run! That was a perfect opportunity as it was still running! Liked that you used the heat dough on the service valve make sure to tell your techs about that! To few technicians are using the heat dough! It's some really good stuff unlke that worthless messy paste! A very though we'll make video !
Brazing in that wind must have been a son-of-a-gun.
v8 fastback we cannot have nice breezes because we use wind for the wrong purpose.
“It actually just satisfied on me.”
-Chris, 2020
Hi Chris, nice to see u
Hello
I bet brazing in that wind was fun. Cool tear down! I’m the same way, I always wanna take stuff apart to see what broke and/or how it works and is put together.
Thank you to show us what's inside.
For future tool buying thought.. i used all my career the D-Tech.. I now use the D-Tech Stratus... It is SOOOOOO worth the money... I found leaks with the status that i didnt find with the other..The tools with PPM reading are just that much more accurate..
HVACR VIDEOS Look at the ends of the plastic manifold where it feeds the suction inputs of the cylinders. It has clear signs of being hit by the valves!!
Good morning thanks for the video love how you cut the compressor apart i also love to find out what happened to it!!
That was interesting to see inside the compressor. Hope it doesn't blow, cool tee-shirt. I was thinking maybe it was a caniblet pin or part of a muffler bearing. 🤪
Top work...
i want to vacuum police you, but you did it yourself lol. unlucky on that packing there, yes they always leak; which is why i like to put nylog on the valve caps during vacuum just to be on the safe side. pulled a 220-ton circuit down on a chiller to around 600 microns in a couple hours, took the whole weekend and on monday morning was down to 170. sometimes all we need is more time, which we usually don't have. great vid though, keep up the great work and thanks for all the teaching along the way! p.s. impacts rule
Nice. That’s pretty interesting. Seems like the valve plate was overheating and maybe started breaking the oil down. I opened one recently because it sounded like rocks inside and it turned out to be a mounting spring broke and the whole assembly was bouncing off the shell.
Yeah i think somehow this one was hitting the case and or thr muffler was rattling .........
Thanks for the autopsy
this is not my trade but like the way you do a ortopsy in the failures you get as i do the same with the gear that im involed in like finding what killed the amp in the sound system and what was the chain of events to cause the issue .great videos keep it going
thank you!
I really appreciate your video the tear Downs are awesome ok piston pump tear down done Copeland scroll compressor next I'm sure you've seen some impressive brake Downs be for
Im like "holy crap 107°"... then you mention the video was shot back in june haha.