The main thing to appreciate about 1234YF is its significantly reduced environmental impact, boasting a Global Warming Potential (GWP) over 99% lower than R-134a. This change reflects a global shift towards more sustainable automotive practices.
The R-1234yf is much more reactive than R-134a. On the positive side, this higher reactivity is why R-1234yf is so much more friendly to the environment.
Changing from R-1234yf to R-134a refrigerant may result in a system with incorrect refrigerant flow and heat exchanger mal-distribution which may cause a loss of cooling performance or durability concerns.
HFC-134a: a Potent Greenhouse Gas
Potent greenhouse gas with a global warming potential that is 1,430 times that of CO2.
Why is 1234YF Important? Environmentally Friendly: The older refrigerant, R-134a, contributes to global warming if it leaks into the atmosphere. 1234YF has a much lower global warming potential, meaning it's less harmful to the environment.
The downside, however, is that these systems are more complicated and costlier to maintain. The refrigerant alone costs about ten times more than 134a.
Still, the answer is an emphatic, “No.” Not only would a retrofit of this type negate the environmental benefits of R-1234yf, but it would also be a violation of Federal Law under Section 203 of the Clean Air Act: “tampering” with a vehicle's emissions control device.
It is anticipated that by 2025 all vehicles will contain 1234YF. Don't fret, however, if your current vehicle requires 134a. Though 134a is not compatible with 1234YF and is expected to be phased out, it is still in production and will continue as long as there is a demand for repair of older vehicles.
R134a has been found to have a lot of greenhouse gas potential, as it can end up in the atmosphere and take forever to break down. For that reason, all new vehicles sold in America after the year 2021 can no longer use this type of refrigerant.
The AIM Act is a Federal nationwide rule phasing out the use of global warming materials. As part of that effort, EPA is now banning the use of 134a in aerosol products as of 1/1/2025. There are excepted products that are allowed to use 134a until 1/1/2028.
Switching to R1234yf refrigerant is a step towards a greener future, but it comes with higher costs due to advanced equipment, stringent regulations, and specialized training.
The ACX universal flushing unit is designed for refrigerants R134a and R1234yf. A proper flush of the air conditioning system is one of the most important tasks to be carried out during repairs and after the replacement of a compressor.
The results also shows that the compressor working with R134a performed better than that working with R1234yf when operating under high condensing and low evaporating temperatures. However when the condensing temperature gets lower, R1234yf outperformed R134a.
What's behind the Switch to R-1234yf and what Exactly Does it Mean for Techs? R-134a was originally the replacement for R-12 which was phased out when it was found to be harmful to the ozone layer. Years later, R-134a was found to contribute to global warming, and now it too is being phased out . Enter R-1234yf.
Most vehicles have a label or sticker under the hood that indicate whether the refrigerant used is R-134a or R-1234yf.
R-1234yf is used in almost every new car sold in the U.S., but the EU is discussing a ban and the industry is investigating alternatives like CO2 and propane. The question is why the auto companies, with all of their ability to identify emerging chemicals of concern, were using R-1234yf in the first place?”
An AC leak will lead to warmer air from your vents over time. In most cases this can be fixed with a proven stop leak additive to seal up any leaks. When it's time for an AC recharge, turn to AutoZone.
In 2010, Chevy, Buick, GMC, and Cadillac announced that their 2013 vehicles would use this new refrigerant within the U.S. Since then, many other automotive manufacturers have transitioned to using R-1234yf with the EPA scheduling all newly manufactured vehicles to be equipped by 2021 (click here to read more).
In the first half of 2024 we'll phase out our R-410A dedicated models and introduce -01 refrigerant versatile models, compatible with both R-410A and R-454B refrigerants.
General Motors began introducing vehicles to the market utilizing this new system in 2013 with full conversion in 2018. Chrysler, Honda, and Subaru models followed in 2017. It is anticipated that by 2025 all vehicles will contain 1234YF.
R1234yf has an atmospheric life of 11 days compared to a 13 year lifespan for R134a. R1234yf compares in efficiency to R134a and has the same cooling capacity. Vehicles using R1234yf are expected to use less fuel and produce 20-30% less CO2 which means a significantly reduced carbon footprint. R1234yf is safe to use.
R-12 and R-134a are known to be very efficient at cooling but are not as energy efficient as 1234YF. Therefore, cars with 1234YF systems can have better fuel efficiency and emit fewer greenhouse gases.