THE BEER WALK IN IS MAKING A LOUD NOISE
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- Опубликовано: 10 июн 2023
- The beer walk in compressor was making a loud noise
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Just this week i replaced a big scroll. The biggest Copland makes ( 30 hp- 385k btu's- 213 L of oil ) had rotolocks as well. It was a heavy sucker ( 400 lbs ) i really want to cut it open and see the guts of it. When i went on the original service call....found the oil sight glass was empty....all the oil had migrated to the brazed plate HX. It wasn't a burn out, and it ran like yours did, but it too was making a horrible sound and it wasn't pumping that well. It took us almost 1 year to get the compressor from the manufacturer. We also replaced the 609S LL filter drier and the TXV ( i found it leaking from the adjustment stem and internals ). It was on a Multistack water cooled chiller. On start up it was purring like a kitten...didn't even have to adjust the TXV either. It was a cool repair and i enjoyed it. We also added 2 CCH's to the compressor as a safeguard too.
Thanks for sharing. You are big influence on the trade....in a positive way. You are also realistic and show real world repairs....not the by the book, which is seldom feasible.
I also just replaced a ZP385 not long ago.
Actually found another one bad this past Friday as well
Odd call for sure, the part you found the wear on is the Shut Down Device. This prevents the scroll from running backwards at shut-down and making awefull noise customers hear and complain about. It works by jamming itself on the flat on the shaft, given its age I don't think it's that bad. It flings itself out of the way while running. My 2 cents it was simply its time after a long service life.
Watching you fumble with the bender is the most real and relatable frustration. I get irritated for you.
ahh, the age old problem of benders not fitting where you need them! 13:29 for soft tubing a spring/noodle type hand bender is usually best, but it's always very tough so close to a flare/end.
I always try magical benders first(lol), but it never fails that I revert to spring type or just bare hand it/use random cylindrical objects(sockets/cans/tool handles/pipes/tanks/ducts) you get the idea, anything and everything is a bending tool. 🤣
I find it very nice of you actually showing some of your employees doing something. I would suggest to do that more often if they don't mind. It appears more as you are not the only lonely guy that has to deal with all that stuff
He's not the only one that deals with 🤬💩 all day, but he IS the only one that can "waste" time filming what he's doing without having the Boss breathing down his neck...
Or at least, if the Boss does scream at him for "wasting" time filming instead of making money fixing the customer's equipment, he can tell the Boss to 🤬Off and the Boss can't reprimand or fire him for it...
He gets away with it cause he OWNS the Company which means he Outranks EVERYONE, including the Boss...
😄😁😆😅😂🤣
Putting this video on while trying to sleep was perfect lol. The background sound was perfect to fall asleep to
Sunday videos are best! Thanks for all the time you put into it.
I've heard that some of the older scroll compressors will encounter a power failure event allowing the orbiting scroll to rotate backwards and will start in this condition.
Sounds like my old AC unit the day before it blew up. Lightning/surge damage in that case. Can't wait to see what the damage was, if you show the internals.
I appreciate these videos where you do things like a post mortem on the compressor.
I wish i could smash that like button multiple times. Nice work Chris, and all his Techs.
maybe those scratches are caused by the iron particles that came of that weared out metal piece. If they get inside the bearings, they could cause problems, even when the oil is fine. And due to the magnetic fields from the motor, they are attracted and will stay there
Love the videos, and the 4K60 quality
thanks bud , I will be going live on RUclips this evening 6/12/23 @ 5:PM (pacific) to discuss recent uploads and to answer questions from the live chat, come on over and check it out ruclips.net/user/liveCPjb6E9YmCc
Great work Chris. Thank you.
Great Video. Thank you for sharing
Great video. Truly love your Brazing skills .
Great job, well done 👍
Power swagger is money!
The oil looks really fine, I would call this just an old compressor. Maybe it has eaten some metal shavings or dirt out of the copper piping which might have caused the wear patterns on the rotor, maybe some liquid refrigerant once got into the scroll and did the mechanical damage.
I love the idea that somewhere, somebody in design might see this and use it to justify a modification to some future system to make it work better.
2pm, eating ice and sipping on my coffee, while watching your new vid... Life is good 😊✌
Another great video Chris! Though I do have to say it was quite different without the music montage for soldering.
I still enjoyed it and again very insightful and informative!
Thank you for all the time you put into these videos, be it long or short! Stay safe out there!
brazing. soldiering is different. :)
Good work.
I love when we get to see a good autopsy!
Hi. Chris
Thanks. For video
Good. Stuff always. Enjoyable. To. Watch
Nice job and video Chris.
I really hate those Krack systems. Not fond of a scroll for refrigeration either. Have one that has one circuit that has been through 3 compressors. We have replaced TXV, contactor, Drier, Refrigerant, Dual pressure control and the fan cycle switch. Beginning to believe there is a problem with the heas injection system or maybe, partial restriction in the condensor coil itself. I recommended that we cut out that circuit and put separate skid on top of cabinet. Which would reduce load on the rest of rack. Lowering all other circuits head pressures. Originally a R22 system, Customer refuses to let us replace rack. Have tried many different refrigerants in the rack. Currently running 409A. Pressures never did run right.
wow, what a riddle.....expensive
Another great video! Nice to see the appearance of the new WetRag Heatshield from Refrigeration Technologies ❤
Awesome video cool when you take the compressor apart
I love that elbow torque wrench!....I need one of those, mine is out of calibration....
Good find. That was definitely not going to last.
This is a reference from Dick Wurz Commercial Refrigeration book. And it makes sense. But when you change a sweat drier, whether you are taking the old one out by unsweating it, or putting the new one in, it releases moisture into the system that the drier has collected. That's why it's better to use flare or canister driers. I've always done flare drier whenever possible and I started using that male to female thread sight glass because of you. Really works nicely.
Always a good video. I have some crazy window air conditioner modifications I was going to send you pictures.
Jon, just post them on line so we all can see them. That would be interesting.
@@brucejones2354 Any particular place I should post them?
There’s a good video. Thanks for posting that receiver on your right looks kind of rough.
That wear at the top bearing surface is due to particles in the oil
Anyone with a normal degree of foresight should have realized by now that the cooling of food, that of living space, etc. will become increasingly important. In my opinion, the cooling/maintenance business is a profession of the future right after the nursing profession!
Do not forget about the janitors to
Any trade is at this point.
This industry been growing for years and expected to grow over 15% next 5 years
In my opinion HVAC is more important then nursing. Thermodynamics are related to comfort that keeps the nurses job easy.
Lol. I've been in hvacr for 35 years and an owner operator for 23 years. Your comments is an indication of how weak the people have become and how they've lost the ability of self sufficiency. The skills are lost and college is a waste. Breeze Mechanical Inc.
They call it a 50 pound cylinder because that's its water capacity,
Also before they say I had both of my gauges on the low side of the system I charged half of the factory charge which was 19.4ozs so I charged 10ozs and both sides still were in a vacuum.
I totally feel, in my honest opinion, the evaporators being shut off is a huge factor in the failure. A suction accumulator, a rewire, or a delete of the switches are the only sure fire ways to eliminate the human error factor.
Nice 😊🙌👍🍀
Chris if you still have the stator take a look at it , the rotor looks like it had contact with the stator. Worn main bearing?
Love the vid ❤ keep it up
Very nice work Chris.
Nice that your starting to give your guys some screen time lol. What's the longest a employee as stayed with you not counting family.
I will discuss this on my Livestream this evening on RUclips 6/12/23 @ 5:PM (pacific) come on over and check it out ruclips.net/user/liveCPjb6E9YmCc
I usually just add 40-43 pounds of any kind of refrigerant to50 pounders
Suggestion. Hook the manual fan switch in series with liquid solenoid. So that when fan switch is shut off. It closes liquid line and pumps down.
Or add a relay to switch an appropriate control line that can be bypassed if needed. I'd rather not have AC power to a rack component being provided by a switch (and possibly breaker) not local to that rack.
What was that solder coil you used at 21:00?
Was it Silver Solder? If yes, why use it instead of the usual braising rods you use?
Do you ever personally help guys with diagnostic questions. I’ve only been doing commercial refrigeration and restaurant equipment for a year or so.
Let me know. Thanks
First thing i do once home after a 14 overtime sunday? Watch this video. I think i need to get a life xD ❤
1:51 refrigerant valve companies won't guarantee their valves against a vacuum pump when the valves are new, let alone old ones. I always recover the charge to be safe, just my opinion though.
Can you see if MotorKote friction reducer is compatible with freon oils? I want to see if putting it in the oil inside the system (if compatible) would reduce friction of the compressors and motor bearings and increase the life of the compressors by reducing the load and reduce the overall heat by reducing friction in the system
I did put .25oz in my cars R-134A system and I can tell the engine with the AC compressor on idles MUCH smoother, but I only put in a teeny amount, I wonder how much (if compatible) it would take on larger systems
Chris and all of his followers I have situation that I would guess you have not come across because I have been doing refrigeration for almost 30yrs and I came across a Fisher Scientific cooler that had a sideways compressor with accumulator attached to the compressor complaint was that cooler not getting cold enough found cooler running at room temperature coil was not frozen up compressor was warm drawing just under RLA suspected undercharge so put gauges on and found both sides low and high in vacuum when compressor was running but when it was not running had 90PSIG with system equalized question is what metering device was it and what was the issue.
If you don’t mind me, asking what is a normal pay rate for a refrigeration technician? Is it much greater than a residential?
What kind of oil pump is in those scrolls? Did you open the oil pum?
Would you say that there isn't enough metal and particles in the oil to account for the amount that's been worn off of the parts of the compressor? Is it possible it had an oil change after some damage happened?
What's the silver solder called?
Maybe sound like a dumb question, but why using new refrigerant when refilling it instead of cleaning the recovered one ? does the Refrigerant deteriotate over time or is it because it can have contaminents in it ?
I have seen you routinely skip the nitrogen pressurization decay test to determine if your welds hold. Is this because you feel that any leaks would show in the micron decay test? And do you skip this test out of expediency?
He does this because he trusts his welds
How much was the bill?
😂
I have a question, please know I'm not being critical but if the refrigerant was not burt then why replace it? Did I miss something? Maybe I been wrong but I try to save the refrigerant if I know it's good. I'm always questioning myself to ensure I'm doing what is best. Great video!
but it was contaminated and may cause a restriction down the line in the immediate future.
OK, now you have one compressor with mech failure and one with electrical. Can you assembly the one working frankenstein-type of those parts? Or would you make a video why you should not rebuilt compressors by yourself?
P.S. I'm from country where parts are expensive, and labour is not - so for my swamp point of view there is reasoning to make thing like that.
warranty
maybe a power issue caused it to run backwards for a long period at one point or something else failed causing major flood back and oil washout?
Pretty sure it’s against best practices to braze without 80’s music in the back round
That compressor was worn out
Hallo. I was wondering...The leak wasn't enough to affect the vacuum? No worries on if moisture got sucked in?
Well, he is in a fairly dry climate, and any moisture that may have migrated into the system would have been miniscule.
and the drier/filter would have removed it?
@@brucejones2354
You used a cordless grinder to cut up that compressor? I used my cordless Milwaukee one and it started smoking. I ordered the fuel but I’m hesitant to cut it open with another cordless grinder lol
Take a look at Marita XGT. Those things are built for work (the red instruments are way more expensive in my area.). Some of them requires spare operator, if you get what I'm meaning.
Am I the only one that thinks it is nice to see an employee recognized on occasion in the videos? I do understand you normally dont show every man you have
What dose a metallic smell smell like to you can you give me an example please
Not in the industry but can tell you it is an odor that makes you think metal. Metal doesn't really have a smell, but the odor for some reason triggers "metal" the same way burning wood has a destinct smell as do plastics.
Can anyone explain why the rotolock fitting is stainless steel instead if a copper or brass component?
rust
my guess is power surge
Does that location have a voltage issues, because a low / high voltage can cause a mechanical problem with in the compressor, over torquing mechanical parts
Hey bud, I noticed that you don't use Zoom Lock. Do you not trust it?
Yeah I use the zoomlock max it's just not necessary on most the jobs I do but I will usually use it on new walk in installs
@HVACR VIDEOS thanks for responding back, keep up on explaining as I use your videos for my hvac/R students. Just love your OCD I'm the same way. Once again good job!!
570 thumbs uP
Often I don't stick around to the end of your video after the job is done. Does not watching your discussion at the end of your video hurt you with the RUclips algorithm? Does fast-forward'ing to the end and just watching the last 30 seconds help at all?
Does the Viper Wet Rag get stuck in the rotolock threads? I see you used an actual wet rag this time.
Definitely missing the brazing montage music lol.
Great video though!
Facilities versus management, a tale as old as time. Let's save $20 now to spend $1,000 later
You are a good tech, but you can improve your welding skills in my opinion, too much fuel at the tip is audible and not the hottest that for cooking the metal too long. also you apply heat all over the place, LOL . Thanks for the videos I'm a vet tech and I still learning from you and everyone else.☺
I was taught to run a slight carburizing flame for brazing. Reason being you reduce the oxygen at the point of your molten filler material
@@BiigCheeze Absolutely, but in practice that takes longer and more fuel, if you braze like that inside a Subzero refrigerator you'll burn it up,. You can control temp melting point by moving the flame. Just not my style to be wasting fuel and oxygen with noisy flames.
@@hotrod7696 yes I agree, his braizing technique shows a lack of confidence. He seems nervous when welding
The heating of the copper up to the elbow for example was unnecessary and seemed like a bit of mental time wasting...
IF THAY DONT DO MAINTENANCE. EVEN IN GOOD TIMES . THEN MAKE THEM PAY .
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I routinely weld with my cut resistant gloves on. But I dunk my gloved hands in water first.
Put a couple drops of oil on the outside of the flared pipe so nut doesn’t bind when tightening. You’re welcome
38:13 Looks like a no-oil damage to me....
I've seem guys with non leather gloves do it, end up catching fire, and they have to pull the bits of rubber melted in their skin off.