What's R1234yf? What's R134a? Automotive HVAC training
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- Опубліковано 30 вер 2024
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Servicing an R1234yf-equipped vehicle can present challenges for shop owners and technicians. This module covers the additional knowledge and specialised equipment required to service such vehicles, and discusses the differences between R1234yf, which is a synthetic HFO refrigerant, and its R134a predecessor.
The YF stands for your fucked if your a tech. Machine takes 2 hours to evacuate and recharge. Gotta sit there and baby sit the machine
why can't we use R600a/R290? Way cheaper and probably just as safe in terms of flammability...Pretty much the same GWP and ODP numbers. Oh right, no one would make any money that way, lolz.
I am happy to use it if it does not cost me extra. The governments are all but bunch of Hypocrites. If your vehicle releases higher emission you have to pay more. But when they issue a 2 weeks work permit for a job that only require 2 days at max and cause unnecessary traffic jams and emission thats all right bcos whatever they do is right.
Yes, those are natural gases and can't be patented. unlike 1234yf which is synthetic and can be patented even though it's inferior to the ones you mentioned.
Why reinvent the wheel???…. More new and expensive tools, refrigerant and higher cost in services and labor. Good way to RIP more money out of people…..
Not accepting that rip off.....R1234bullshit can easily converted to R134a. One just need to have experience.
Glad to hear it
Can't you just pump r134a in the system and be done with it? Or does anything else needs changing?
@@MrRightNow There is more to it dude, you need to make sure you don't have a leak first. Also the R1234yf needs to be properly recovered. You will need a manifold gauge set, a vacuum pump & R1234yf Quick-connectors. NEVER ...EVER...mix the gasses/refrigerants. Some basic knowledge is needed. You can learn that easily on youtube videos, PLENTY good one's out there. Its really not that difficult at all. All it takes is the willingness to learn a bit.
@@0815funkmaster this is Innocence if pumped out and now fitting applied there is no real problem BUT do not mix the two GASSES
ya you can convert 1234yf to r134a but not the other way around
This is what I don’t get. They say it’s safe and not bad but need stronger evaporator and also different equipment that is spark free. Oh also keep the gas under strict guidelines cos it’s flammable. Oh don’t get me started on the price of the shit
The silent part
R12 could freeze the nipples off a penguin. 134a couldn't match it.
wont buy a car with 1234yf,,,staying with r12 an 134a,,,, only reason they change is when dupont patent rights are over,,all about money
I am also interested
The modern engineers way of thinking ... We will make it more difficult , complex , and most important , More expensive .. Yeah , i can just see them high 5ing each other ..happy they figured another way to fuck the consumer .. Big bonus in there pay this year for coming up with this one . Makes me sick ..
Propane for the win.
Yeah, why be concerned about the flammability of 1234yf when you're sitting on a 1500 pound lithium battery.
Based off of the information you put in this video it appears that I would be better off using propane like Mexico does in my AC system. the regulations Of R 12 And 134 a. That is a bunch of crap it has nothing to do with ozone and more to do with the patient running out .
you say its not good to retrofit but yet i did with my car and its working better then ever i can expect summer temp to reach 35c with high humidity and car stays cool
the Stuff id PROPANE that they wish to mask QUESTION is WHY ???
Cost to evac, diagnose, and refill R134A in my area: $280. cost for R1234YF: $600. 😡
DuPont is all concerned about the ozone layer suckers
Too Expensive
Do you interested in the cheaper ones?
I've successfully converted two vehicles from R1234yf to R134a. A 2015 Ram 1500 and a 2021 Honda Accord which are both working fine. I purchased R1234yf quick couplers that allowed me to use my R134a manifold gauge set, vacuum pump and other tools that I already had. It's very important to completely evacuate the system of all R1234yf, you do not want to mix them.
I have a 2018 accord new compressor no gas can I gas up with r134a?😊
@@dowahnephoenix4096 Absolutely, but you definitely need to thoroughly evacuate the system before you re-charge it. I did my daughters 2021 Accord last summer and it's been totally fine.
Idk about it's efficiency, but I need that double walled evap line for our r134a systems here in Phoenix when the ambient temp reaches 114 degrees. Fords can't seem to blow cooler than 60 degrees from stop light to stop light.
I can tell you it’s not efficient for my flag hours. That 1234yf machine we’ve got in the shop takes forever to do a recovery and a charge. Literally takes 3X as long to service a 1234yf system vs a 134a
Correct me if I'm wrong but automotive A/C systems are designed to cool the cab about 15 +/- degrees difference based on ambient temperatures. We will never have a 50° difference from ambient temp unless you go old school and use a propane system (good luck with that)
@@jaimeflores1575 couple years ago I had a 99' Grand Prix that I replaced the compressor on and it would consistently blow 38-40 degrees F at the vent no matter the ambient temperature. Not sure how or why but I've never had a/c system work as well in a vehicle as that car did.
@@TelosDextroza No it wasn't. But I realized he said "cab temperature". It's not uncommon for a/c to blow around 40 F right at the vent. The cab temperature itself will never actually get that cold. So he's probably right about what he said.
I had a few 1234yf cars and always thought they didn't cool that well. Always blowing on high. I do live in Florida but thought something wasn't right. I just purchased an 11 year old truck with 134a and the cab is turned into an ice box after a few miles of driving. It's clear to me that 1234yf is dumb. More expensive parts and blows warmer. I have owned four 4th generation Rams with the new junk and one with the old stuff. R134a is king!
You say it's more efficient but its crap I've worked on multiple cars with it and the lowest I can get the systems to cool down is 57°F but I ran both of my cars on that same day one with R134a and the other with R12 and the sentra can get down to 41°f and the 280zx can get to 38°f so that's gonna be an issue hopefully this new crap is just a trend and it will die out and continue using r134a, we already did retrofits on some fleet Hondas back to R134a it was too expensive for them to run they constantly leaked from the compressors and have horrible warranty so its easier to dump the new crap and use to old
Bruh, I recently bought myself a 2015 Fiat 500 Abarth and it has this new R1234YF and it is so bad. You are right, the lowest temperature it is able to achieve is nothing close to previous R134a systems. Best way to describe it is, R1234RF feels like R134a but with a system that is low on refrigerant.
Personally, since 2012, I've used another refrigerant R152a on every single one of my vehicles. Gets colder, gets colder faster, and half the molar mass as R152a and past 1500 rpms it feels like the AC isn't even on. It gets colder than R12. R152a is exact same chemical as R134a, but about 64% of the molar mass, so all you do is evacuate R134a, vacuum, and put in the R152a.
BTW, R152a is literally Compressed Air (Canned Duster) you find at the computer section at Walmart. There is no vehicle that will need more than 20oz of R152a, which is 2 cans. 2 Cans of compressed air will cost you about $8 at Walmart.
Best Refrigerant ever. I planned to put R152a into my car maybe this weekend if it doesn't rain, but I definitely need to get rid of this R1234RF, it's complete garbage. Here in Texas, when it gets to 100'F it feels like I dont even have the AC on. It's kinda embarrassing to have a passenger with me and feel that.
You should try R152a, it's easily far and away much colder than any refrigerant I've ever experienced, easily.
@@ImJustKindaHere I done propane on a customer that was stubborn about using it and I was surprised how good propane is I know it's extremely dangerous buy God damn on a 105 degree day it was getting down to 22 degrees, but I'll stick to my r12 and r134a they're good enough for my car the jeep my wife has I already dumped that stuff out and put r134a so that issue was resolved
@@alextepozteco3681 Trust me, try R152a (Air Duster) over R134a, it will blow you away by how little parasitic drag it puts on your engine (about half of R134) and how substantially colder it gets and how it gets colder faster. Again, only put in 64% of the ounces that it normally requires R134a. So if it normally asked for 12oz, put in only 7.7 oz
R152a gets so cold that you will be forced to raise the temp on your AC system (which also removes more parasitic drag on your engine).
Only real tool you need to get R152a (Duster can) into it is a "side can tap" to be able to puncture into the side of the can to syphon the liquid.
Again, gets colder than R12, runs at a far lower pressure (so if you leak out R134, this could be a fix for it), half the drag on the engine, and gets colder faster.
Runs at lower pressure than R12 too.
Try it my dude, you won't regret it :D
@@ImJustKindaHere 100% correct....preach it brother !...it must use the Pag oil..........if you clean out an old R12 unit and put in 152a...just flush out the old mineral oil and use the Pag oil and 52% charge weight for the new refrigerant
Scotty Kilmer did a good video about this and it's a good one
i now know why the german automakers are so against this with the condesor so close to the exhaust manifold on some front wheel drive cars the first person to be burnt alive in an accident and this gas will be banned
R1234 vs R134a, compares it to R12. R134a doesn't damage ozone, reinventing the wheel as usual, while taking all your money.
Please I want to ask you ,if I can replace R1234yf to R134a in my car ,because its very expesive.
What about the efficency between them
I am also interested in that
Yes, I've done this to a few vehicles without issue. The "experts" will tell you "no", but many have done it.
Actually I would like to fill my car with gas 1234a instead of 1234fy cuz it's really expensive...w is your opinion plz??
Car is Nissan Altema 2019
What about the reply to your comment please
Yes, I've done this to a few vehicles without issue. The "experts" will tell you "no", but many have done it.
Can a 1234yf system be swapped with 134a gas?
Yes, I've done this to a few vehicles without issue. The "experts" will tell you "no", but many have done it.
@@scottcpan68 Thank you for the reply. Will the system work correctly with 134a gas?
Its flammable ! not good !
It’s extremely low flammability, in comparison to r290 (propane). But it’s still junk. I’ll be converting the new car to r134.
Everyone here needs to go & get educated.
Funny fact is that every single R1234yf system has a small leak. How's that supposed to save the environment ?
Desipates significantly faster than 134a. 134a takes like a decade to stabilize while 1234f takes no more than a month
Why is he looking under a tesla hood as if there's an engine under there? 🤔
Very clever 😂😂😂
Does that mean here in Australia we don’t need a licence to use it anymore unlike 134? Does that rip off scheme disappear now?
Any harmful ,damages to the AC system if we retrofit system from R1234YF to 134a !!! If it does what parts and why it got damaged !??? Good question Right !???
Can hardly understand a word of your English accent.
I suspect you need more experience with the English language, you’ll get better.
It's Aussie, not English.
I am very Grateful for you sharing your knowledge about these refrigerant system changes and similarities. it is very helpful ,informative and well done Thank You!!
I use r21 propane in all my cars. Its cheap and makes ice cubes
R290
@@HDXFH you are correct.
You just pump it in instead of r134a? No modifications?
No mods just don't crash and spark off and explode. That's all.
A/C Line with large diameter carry low pressure gas and small diameter carry high pressure liquid
what is GWP^2?? cause R744 has lower GWP value which is better than R1234yf value!!, Also isn't R744 formula CO2 -Carbon dioxide- which means some here is giving some false information.
Now I really appreciate my Thermodynamics course LOL
But R1234yf exacerbates low T in penguins.
So stupid. Mite as well use 290 or 600a.
Prvlam C1233_20
Great video thank you mark mangano dependable auto wartburg tennessee
Good
Gracias por la información saludos! 👍👍👍
You are standing in front of a nice car :)
Dont you mean a pos that won't ever get to 200k miles
@@CmurkGam3ing There's Tesla's with over a million miles on them.
@@mattwolf7698 not on original batterys in a 10 year time frame
There’s a date printed on my 134a cylinder. Do you know what the date represents?
Mine says: 01-08-2021
Normally it's the tanks test date - in the US they need retesting every 5 years I think
Yes.you’re right
I think it’s ex factory date
Pretty much you have a bomb on your car😮😮
If your vehicle uses gas then you’ve always had a “bomb on your car”
@@SeanBoss I wish I could give this a million likes.
the inner and outer pipe is like what is used on cheap household refrigerators.
the cap line witch is a thin wire like tube runs inside the line that returns to the compressor.
to eliminate the droplets couldnt the evaporator just be made bigger?
on a window air conditioner the condenser coil is always bigger than the evaporator.
why not do the opposite make the 2 coils the same size.
if you really want to reduce the global warming why not do a "hard transition" (snap! go electric and eliminate burning fuel with no soft transition)
instead of every car sold in 2050 has to be electric make retroactive every car sold now be electric and do a cash for clunker buyout for all fuel car.
yes there would be more car fires due to battery fires because no car makers would have no time to perfect the ev.
by going ev we can eliminate the biggest carbon footprint.
LOL! If only carbon was a pollutant!
Never trust anyone who presses the bonnet shut rather than dropping it.
@@okornel Fair enough 👍
I feel sorry for your equipment
I never trust anyone who calls the hood a bonnet.
@@KrisMinnear 😂 Neither would I if I were on your side of the pond!
That’s the proper way to close it on the Tesla. It typically won’t lock fully when dropped.
LOL Can you count to 4 hahahahaha That must of been real hard to find a name for that coolant.