What happens when a compressor tries to pump liquid

Compressor slugging. Fast forward to the 7 minute mark for the compressor autopsy

[@dricklorenz9340]

I searched for "compressor slugging" so here i am. Thanks for taking the time to make this video...

[@UlisesPalacios]

Thanks. This one was interesting for sure.

[@johnsheets6902]

Terrific video! Really enjoyed how you dismantle the compressors to confirm problems. Can’t help but feel like I have learned how things work in more detail. Thanks!

[@danobrien3109]

This is a great learning tool for any mechanic at any stage of their career. Thanks for sharing your knowledge and explaining simply how the system operates.👍👍🇨🇦

[@cameron3991]

Don't learn to much from this guy, 99% of techs do not recover with the cylinder upside down, especially commercial techs. An you do not need a filter dyer on your machine, and you definitely do not need to replace it each time you recover that is just a complete waste of money. Ive had the same recovery machine for the last 10 years and as long as you take care of it you won't have any problems. The only time I might use a filter dyer is if the system I'm recovering has a ton of moisture in it, but it slows your recovery time down a lot. There is not really any good information in this video if you want to waste your time watching somebody cut a compressor apart for 20 minutes this video is for you but as far as useful information this is pointless.

[@RodDay]

Nice breakdown video. Thanks for taking the time for the details and corrective actions taken for the repair. I love the fact that you have a VFD setup for this demo.

[@UlisesPalacios]

RodDay thank you. I appreciate it. I enjoy it.

[@carsten.hamburg8771]

Very interesting insight into that technology, thanks! Best viewed at 1.75 speed btw.

[@rookierefrigeration4357]

Really cool video. Why don’t you upload anymore😭

[@LaudiumEnoch777]

Hey thanks for making this video I was really interested in seeing inside

[@sjefoekel6058]

You are the doctor G off compressor autopsy👨‍🏭👨‍🍳👌

[@UlisesPalacios]

sjef oekel lol thank you

[@tserevenad]

Fascinating. really informative. thanks. that kind of failure must be very noisy. Can a slugged compressor physically lock up so it can't run (I imagine so if damage is severe), if that occurs physical lock up would it trip breakers or thermal overload?

[@rigakit]

So So nice when your truck is by side!!

[@sophiegrisom]

The thin flapper valves are a weak point in compressors. They cracked in my Harbor Freight air compressor, but replacements were ~$8 and easy swap (youtubes). Of course no liquid passed thru, just fatigue from repeated flexing. Similar flapper plates in the Denso AC compressor of my 2002 Chrysler. Didn't break, but a rebuilder messed up, putting 2 flappers plates on one sid (stuck together) and none on the other side (dual-acting pistons). Tore it down and fixed it. Given the bent thick steel on the backers of this compressor, I agree that liquid likely got inside the cylinder to hydrolock. Appears not a robust design with that plastic inlet tube and iffy seal to keep out oil. I wonder if specific to Carrier, or if they out-source compressors. Indeed, many HVAC boxes come from the same factories with just different brand names attached.

[@mccutcheonservicesllc81]

Great video 👍 It's fun tearing stuff apart to see how it works!!

[@UlisesPalacios]

McCutcheon Services LLC yes sir. Thank you.

[@capitolrefrigerationheatin7501]

thanks for posting, looks like flood back issues,lost the superheat !

[@UlisesPalacios]

Capitol Refrigeration,Heating,and Cooling thank you. I'm still on the search for one with broken rods. Would be could to look at the damage

[@davida1hiwaaynet]

Very cool. There's not a lot of clearance between the top of the piston and the head is there? Definitely not enough room for a broken valve reed to bounce around in there! When I saw you removed the bolts and got a little refrigerant; it brought to mind a rebuild I did recently. I remember last year (2020) tearing down a sulphur dioxide refrigeration compressor built in 1931. It had been decommissioned for many decades (since 1980). I still got a spurt of SO2 when taking the head bolts out! Start at the 57 minute mark to see that part... kzbin.info/www/bejne/kIvXfqCsgr-qrrs Interestingly, the overall design of the head seems similar to yours here, although the older one has the suction valve in the piston as opposed to the head.

[@LMSILVIA]

That reed is flapping away 60 times per second for years on end, can't you think it simply failed due to metal fatigue? Every time you encounter a broken reed is not necessarily because of liquid slugging . I imagine you didn't just change the compressor and didn't look for what caused the supposed slugging? You'd be amazed how much flood back these kind of compressors can take and still manage...

[@Z-Ack]

Hell my copeland scroll been pumping for 30 years... spent 20 years of its life making cold and the last 10 making shop air... put an air filter on the inlet with oil diffuser that i add a half a cup to every month of royal purple air compressor oil while its running.. copper lines ran through a vehicle oil cooler radiator then an oil/ water separator after that at the lowest point below everything, then piped up to a 30 gallon tank.. put an old wall mercury thermostat coil on top of the compressor acting as a thermal switch for a fan i got mounted above and below the unit.. been good to me.. takes about 15 mins to fill the tank to 150psi from empty... enough air to run an impact, painter, nailer, not quite enough for sand blaster but still.. ole copee still fartin 30 years old.. got a date on it of 1992 so 29 year old.. still an antique ... ha!

[@SupermarketRefrigeration]

Badass 🤘🤘 You ever find out what was causing that slugging? SH looked good, but maybe flooded starts??

[@UlisesPalacios]

Maybe airflow. They wouldn’t change filters that often and it was probably flooding at one point for awhile

[@rb3263]

What did you use to open up the compressor? Like you would probably need to take some precaution opening up with an angel grinder? Cool video, makes me want to check out this compressor I helped change out.

[@israelnieves7785]

Awesome video thanks for the breakdown 👍

[@kingofthecrease30]

do you do refrigeration as well or only hvac ? your videos are good

[@UlisesPalacios]

kingofthecrease30 thanks man. I'm gonna get into some more refrigeration shortly.

[@aircooledtx]

Good CMP change, Ulises

[@UlisesPalacios]

Michael Lee thank you sir.

[@jonhvac]

Very interesting autopsy Ulises and comfy times too ;)

[@UlisesPalacios]

Jon HVAC thanks 🙏

[@airmechanical7163]

Excellent video!

[@leroygreen1877]

looks like what happens when you drop a valve in a engine. Why was it pumping liquid and not vapor? How can you stop slugging?

[@timshields5308]

Great video. Keep up the good work.

[@theairconditioningguy]

I've been using my recovery machine without a filter for a while! I keep forgetting to buy one. 😕

[@UlisesPalacios]

The Air Conditioning Guy lol I would get one just to protect it.

[@syedbasheer8210]

Excellent video😍

[@scottbunning7377]

Dido. Thanks for the video.

[@Jeepjones85]

Great video thanks

[@joeshearer1247]

I'm suprised it wasn't pumping at all with one cylinder still good,

[@RodDay]

With the discharge open on the damaged side most pressure built up on the good side would be forced into the open discharge port.

[@throttlebottle5906]

discharge valve on bad piston was stuck open from being bent and the whole plate probably bent/smashed. hard to say the original cause, it could have been caused by liquid, but the valve could have broken first :(

[@joeshearer1247]

I thought the discharge valves were relatively in tact

[@RodDay]

Joe Shearer 18:45 into the video shows that the discharge was damaged. Looks like possibly the piston pushed the suction reeds into the center cross member support of the discharge valve.

[@UlisesPalacios]

Joe Shearer it was Kinda hard to tell in the video but both discharge valves were bent

[@mohamadafravi1160]

so nice

[@mikestevenson1819]

Nice

[@roushhawley8438]

Your title makes no sense at all.

[@yespetaiownfursnoidontcare2180]

He meant Tries.

[@UlisesPalacios]

Roush Hawley you're right. I'll fix it.