poe and mineral oil why you need to purge
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- Опубликовано: 18 сен 2024
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poe and mineral work fine. your visual test has no merit in a system operating. some retrofits even advise to add poe to the mineral or Alka benzene for improved oil return. water is not an issue on a sealed system that has been evacuated to 250 microns and new driers installed.
if you have that much water to oil in a system you have a bigger problem! I could see a drop of water to that oil but just pouring no way. and his vacuum test, again your not getting that much moisture in a normal system, and what he is proving is why you use a digital vacuum gauge and proper techniques, and most all guides recommend a triple vacuum. I have yet to mix the two but i feel more than comfortable after reading the oil manufactures recommendations doing it.
NO system, big or small, should ever have that much moisture. That's insane and rediculous example.
Yea unless mr knows all puts his gauges on when its hot and humid out and gets all that condensation up inside or he forgets to purge the lines…. But i have to agree with you regarding the poe and mineral oil. Trane used to use compressors for r22 residential systems loaded with “white mineral oil”. But even trane dealers dont stock any of the white mineral oil and even when you research the p/n called for per manufacturer you get a poe oil…. I had a compressor bust its load and sploodge out all of the oil inside and what was left in it was left open to the rain and all for a month before they called it in.. so i drained the oil, purged, replaced drier / filter, reversing valve and cleaned txv screens, filled it up with 12 lbs of r22 and put in 2 qts of poe 00027 or 0024 one the two.. im sure there was still a bunch of residual left in the system cuz theres only so much you can do but when i showed the trane guys the label on the compressor “filled with white mineral oil” they said just use this stuff, it wont hurt it. A few years later i checked the oil for a maintenance deal and wasent acidic, was still clear, smelled like a rubber fart but like used oil….
You are just making the oil cold with the vacuum pump boiling the water. The temp probably drops down to freezing quickly with the large amount of water that you added. The boiling pressure of water at 29 deg F is 4000 microns, which is about 2 inches deep of oil. So, the water sitting under the oil can never boil even if your pump pulls down to zero microns. The pressure at the bottom of the oil sump prevents the water from boiling. That is why a filter dryer is used to remove moisture from oil. I have mixed the two oils in a glass beaker and they never separated even over several days of standing. As a matter of fact, synthetics are mixed all the time with mineral in the automotive industry to save cost. The mixture is called a synthetic blend. There is no coagulation. You are just seeing air bubbles from the shaking. Milky oil is common especially when refrigerant mixes in the oil. The problem using HFC refrigerants with mineral oil is simply lack of oil return and oil slogging in the evaporator. This problem is worse with low temperature refrigeration. Having 20% or more POE oil is adequate to return the mineral oil in most residential applications. I actually confirmed this with a PHd chemist at National Refrigerants. Blends higher than 80% POE oil will never have problems. One more thing. Refrigeration oil is purified so that it never solidifies even at low temperatures. This is true for all the oils. The solids would commonly be waxes such as paraffin an others. This is why refrigeration oil is so expensive and motor oil is never used.
Bravo! I just love guys doing experiments that don't have the proper knowledge to perform their experiments. Had he injected that oil into a container in a vacuum he would have an entirely different result.
excellent resonse, i been mixing them for the longest while,, on a sealed system, it reacts different.. have used r134 on may cars which call for 1234yf,, and a/c works just fine
My question does it still lubricate here's an example detroit diesed 6-71 leaked oil into water procedure is fix leak and run the engine the water will evaporate. Oil and water still acted as a lube. Mixing mineral oil and poe will it still lubricate
This video is a good proof why technician cannot be engineers
@@ontariocollegeoftradesmone318 Would it be recommended to use r-y123yf rated refrigerant oil in both r123yf and 134a automotive systems? That is what I am thinking after my research.
Little unrealistic on how much moisture would be in a system compared to the amount of oil. What little moisture, if any is left in the system after proper evac should be picked up by the filter dryer. On top of that, your system isnt normally under a vacuum when the two oils would supposedly be trying to mix.
POE oil is hygroscopic and picks up water like crazy if the system is open to the atmosphere. And as he showed, a vacuum can't fully remove moisture from POE oil.
nice test , i hapenned to stumble on this i like it ,,,i am retired and old but i remember if you do what your suppose to do with an ac system CORRECTLY you will not have any problems ,,,i never did and slept good at night . just the way i like it ,,,thanks for sharing ,,,,cutting corners catches up to the best of us trust me on this one .....and i am not a chemist either so ! learn we must .
The oil manufactures say poe can be mixed with mineral oil and most recommend adding it in i believe 20%. Do you follow this videos recommendation of 4oz water to 12oz oil? LOL
bad video holleywell even states you can add 20% poe on top of mineral get your facts straight and adding water to either oil alone is bad
2:28 How much water do you usually add when services HVAC systems??? 1/4 cup seems like too much.
It's advised to add 1 Liter of water for every pound of refrigerant !
birdwing98.😆
😂😂😂
It helps to keep your compressor running cool! 😂
I like to add one shot glass worth. That's usually good for 2 to 5 ton systems, heat pump or straight cool. Keeps 'em cooler running in July and August. 1.5 ton systems don't need any 'cause they don't do hardly anything anyway.
At what point did you add a solvent to the the 2 oils? The refrigerant will act like a solvent and make the 2 oils missable.
You evacuate a system to remove moisture! Any water in your system is to be avoided ! Period.......... When using CFC or HCFC refrigerants, POE and MO can be mixed. The exception is R12 that only uses MO or Alkyl Benzene Mineral Oil (ABMO) blend. HFC refrigerants can only use POE oil. ..
Actually, it WAS in fact pulling moisture. You put in at least a half cup of H20. NO FREAKING way a system would have that much moisture. Sorry, this experiment, though interesting, doesnt reflect reality.
The original addition of the POE to the mineral oil wasnt coagulation. It was combining the moisture that was already in the mineral oil with the POE. THAT is what you were experiencing.
Correct. Although Moisture wasn’t good for r22 systems it’s even worse for 410 systems with the POE oil. Hydrolysis takes place and it becomes toxic when moisture is added to Poe oil.
You dumped water straight on top of the oil...... what ... the...
Thats what i said! I was thinking forget why your adding oil in the first place! Let the system go it will kill itself soon enough with that much water. LOL
That’s shows theirs moisture in the system when you mix the oils
I don't think you know what the word coagulate means.
you would never have that much water in the system. The moisture be would be the amount in the air.
THE BLIGHT IS TRYING TO SPREAD!
vacuuming poe oil does not remove it's moisture. a molecular sieve drier removes moisture from poe.
Everything you said is wrong and the amount of water you added is not realistic to any scenario exept sabotage. Ive never seen this coagulated oil you speak of. Use a filer drier for crying out loud.
amen brother......amen........you make me proud to be 25 year veteran of the H.V.A.C. industry
Tnx bro for good information , i never use again this fakes oil , it damage the compressor and fridge pipes . Tnx again.
I disagree.....