Pulling out refrigerant oil during refrigerant recovery procedure. You’re not supposed to do that
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- Опубликовано: 11 мар 2022
- I intentionally recovered the refrigerant out very quickly to make a little bit of refrigerant oil come out with the refrigerant so I can show you just for experimentation.
On this vehicle with the refrigerant fitting up so high in the system and I would normally start the refrigerant recovery process with the valve throttle back to slow down the refrigerant recovery procedure so it would not rapidly lower the pressure in the system making it bubble up and foam up That causes the refrigerant and the oil to bubble up forcing the oil out through the service valve.
(Oil removal is preventable)
By just slowing down the recovery procedure
After going deep in a rabbit hole of DIY AC auto videos I finally reached yours... I m so glad. You always find the same statement everywhere. "Recovering the refrigerant does not take oil out" which you clearly demonstrated is BS. I also noticed you recommended the airsept device that protects the recovery machine and can help you measure how much was taken out... It goes for 274 right now on Amazon. I think its worth the investment if you have one of those cheap portable recovery machines. Thank you!
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thanks for the class Very informative.
I've been so worried about figuring how how much refrigerant oil is coming out when I recover refrigerant so that I can put the same amount back in. It's good to know that if you're pulling from the low side it doesn't pull much oil out at all so I don't really need to worry about replacing it.
Yes, you still need to worry about it. If you listen and watch to enough of my videos, I explain how you can pull out oil through the low side..
Especially if the low side fitting is located directly on top of the compressor port or the low side fitting is located at the lowest point on the suction line we’re all the refrigerant oil and Refrigerant gather as a liquid when the system is turned off .
The very instant that you start your recovery, it starts pulling oil and refrigerant. It foams up like whipped cream or expanding spray foam. .
This is why your recovery machine has a throttling valve to turn down the flow of recovery to slow it down . As you monitor it through your site glass on your gauges or side glass in line on your recovery hose.
You do not just hook up a hose without knowing, and just recover at full speed . You will be pulling out oil every time if you do this..
So you either put a in-line site glass
Or a very good product is produced by AIRSEPT as you cover, refrigerant any oil, or if anybody added any leak sealer to the system, get separated out and gathers at the bottom so you can drain it out at the end of your recovery when you’re finished and measure the amount of oil you have removed.
So the answer is definitely yes you do have to worry about removing oil when recovering from the low side service port incorrectly . It’s all about the speed.. and the location. You must have a site glass when using portable, refrigerant recovery units in Automotive.
@@coldfinger459sub0do you have a part number for that oil separator from airsept?
Does it pull much oil if there's no refrigerant in there at all?
Vacuum does not pull out oil.
You do not hook up a vacuum pump to a system that has a Refrigerant
Do you hook up a refrigerant recovery machine to a system that has refrigerant
Where can that sight glass be found? I learn alot from your content.
That's a master cool #53375 refrigerant oil sight glass - I know that's on some of y'all mind lol
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Hi Thomas, I dont want to bore at every comment but I dont know to be quiet, If you prefeer you can answer on the next video about that because sometimes you put too much effort to ask us correctly
One guy that is AC tech on Brazil, has a channel named 'Clube dos Refrigeristas' he showed how vacuum can pull some oil and cause this says vacuum pump oil ends with some dye in it, he uses a little accumulator to measure it too.
Its good to know If oil removal happens, but I dont think we have to worry about little quantities.
So my question is: Do you think a bigger vacuum pump can pull more oil than a little one? Because sometimes I've seen you using the biggest Navac that money can buy (lol) or maybe this oil comes from what is left inside the manifold hoses, I dont really know so I will appreciate to hear your opinion
Thanks so far, regards from one of your most wearisome subscribers (Im not a bot, I promise you really)
It’s good you ask questions, that means you actually thinking 🤔
That means you want to know more.
It sounds like the bazillion guy doesn’t use a recovery machine to save the refrigerant.
He just vents it out to the air?.
Or he just recovered a little leaving some refrigerant still trapped in the oil.
So when he puts on the vacuum pump it explodes into a into like Whip cream can. ( like Coke Cola CO2 trapped in the water. You released the pressure and the CO2 explodes or of the water sand as refrigerant.)
If you notice I use a recovery machine first and it draws out all the refrigerant even from the oil.
Here in the USA it’s a EPA LAW you must recover refrigerant down below -15 vacuum and it must hold at -15 vacuum.
If it holds that means there is no more refrigerant left trapped under the oil.
If you notice my vacuum machine I pull refrigerant out down all the way past -29.9 down into the micron range.
In the old days when my dad and my grandfather were young. Before refrigerant recovery machine. You throw gauge on car put one end in a can slowly open gauge valve so not to release oil. Sometimes oil will come out but you can measure it because it’s in a can. This was old school way.
Vacuum pumps were vary small back then 1 or 1.5 CFM.
Or a old refrigerator motorways used .
If someone is removing oil when they vacuum is sounds like they don’t understand the physics of refrigerant don’t know what they are doing.
Because you should never remove oil pulling a vacuum. Unless you’re doing something really wrong like leaving refrigerant trapped in the oil.
In this video I made I intentionally set up to pull a vary fast recovery at the beginning to make me pull out oil with refrigerant just to show oil coming out. Just for example.
Normally on this car no oil would come out.
I watch the Brazilian guys channel I can’t understand no English subtitles.
MACS is having a video training webinar on refrigerant recovery in a couple of days look it up. On RUclips
@@coldfinger459sub0 Im wrong! I did the wrong call on the AC channel from Brazil, it was another Brazilean guy but I cant find now, Anyway I dont know if he doesnt recover refrigerant, I want to think he does, but if not probably is happening exactly what you say about, he's a professional guy too, but you know, even people living in rich countries doesnt care to release gas sometimes
Thanks we appreciate your clever teachings
Do you add that oil back to system when putting it back in? I also see that they recommend you only pull down to 0 or above PSI to stop air getting sucked into your recovery tank.
I hear we pull down to a minimum of -15 vacuum when recovering refrigerant
I’ve personally recover refrigerant with my equipment down to around 1000 µm or below
I do not worry about getting the air inside my refrigerant because it’s so easy to remove
And I own a refrigerant identifier I have done videos on that tells me if my refrigerant is 100% pure or any percentage of air that might be in the refrigerant
And yes, if you did happen to take out a certain quantity of refrigerant oil, for example, 5 mL, you would put back in 5 mL of new fresh oil .
@@coldfinger459sub0 Great answer - thnx.
Do you have a video showing how to get air out of refrigerant? I thought that was not possible - learning lots of new stuff!
@@pingpong9656 no video on air removal yet
Hi Tom. Looking forward to the video on how to remove air from the refrigerant. When you get the chance. Thanks in advance.
R134a last 10 years in our atmosphere in a green house effect. R1234 lasts 3 years.
Be nice if we could use CO2 or propane for refrigerant
you can use propane. i do it all the time to our tractors. i have leave the high side close to 200psi at WOT which usually leaves a low pressure side of 35-45psi and its ice cold. @@coldfinger459sub0
what's the part number for that oil catch? I'm struggling to find one
Give me the part number for this device all you do is Google or eBay or Amazon refrigerant oil site glass and 1 million of these devices pictures will pop up on your screen.
Master cool 53376 and then there’s three other part numbers with three different other varieties so there’s four different varieties of the same tour
If my low line shows that there is 0 PSI would it be safe to disconnect my AC lines from the condenser to replace it?
Figuresd it out..... i have no freon at all in my car, replaced the condenser which was leaking and my drier... taking it to the shop today to get it pressurised and freon added.
So its a oil sight glass but its also a oil separator right?
No, it is not a oil separator
It’s an oil site glass it’ll let you see the condition of the Refrigerant annoyed or whether it is crystal clear or dirty that’s about all
If you carefully control the speed velocity of your high side and low side, as you fluid through there, you can make it separate some oil from Refrigerant, but this is not what it’s meant, for I was only doing that for experimentation
AIRSEPT MAKES A OIL SEPARATOR AND REFRIGERANT SEALANT SEPERATOR THAT WILL PROTECT YOUR EQUIPMENT AND YOU CAN MEASURE THE AMOUNT OF OIL THAT YOU RECOVER. IT’S AN AD ON THIRD-PARTY DEVICE.
So when you do a vaccum it dont pull the oil ?
No, vacuum does not pull out oil
@@coldfinger459sub0ok thank you
Hi . What the name of this oil glass ? If i want to find it in ebay or ...
Mastercool 53376-YF 1234YF AC Refrigerant Visual Inspection sight glass Kit
@coldfinger459sub0 thank you 😊