Refrigerant gas RS-24 (R426A)

Hello,

My R107 being equipped with an AC with R12 banned today, I was thinking of switching to R134A, but apparently this RS24 gas is designed as a direct replacement for R12 with almost the same cooling capacity, unlike R134A which seems less efficient.

www.framacold.com/upload/gas/RS-24-771.pdf

Does anyone have any feedback on the use of this gas?

Thanks.
Jean Charles

Hallo Charles,

the link does not work.

I do not have any experiences with R426A but > 90% of this gas is R134A.
From my point of view it is better to use pure R134A than a mixture when you have to refill later.

Hello,

the correct link is:
www.framacold.com/upload/gaz/RS-24-771.pdf
The advantage of R426A over R134A is, that it is compatible with mineral oil that we had in our AC when it was driven by R12.
I used (and still use) R437A in my car but this seems to be no longer available. In my opinion R426A is a good option if you don't want to change the oil.

Regards,
Lutz

Thanks for your feedback.

After inspection of the air conditioning system, everything is original and all the hoses and the oil tank will have to be replaced anyway.
My mechanic told me that R132A had already been banned in new cars since 2013 and replaced by R1234yf, which is less harmful to the planet but more dangerous because it is flammable.
R426A is not flammable, does not destroy the ozone layer but warms the planet like R132A.
I admit that I have trouble determining the gas that will still be usable in 20 years.

Hello Jean Charles,

which oil tank? Do you mean the dryer? The oil is distributed over the whole AC system.
As the AC system in our cars was designed for R12, a refrigerant with as similar characteristics as possible is preferable.

Cheers,
Lutz
 

Hello Chromix,

On paper, RS-24 seems like the ideal solution. But I don't know if many garages are able to recharge the air conditioning with this gas.
I can't find any prices online.