R12 drop in Refrigerant

[mikejen]

Hello everyone can you advise me a drop in for a walk in running on R12 operating as a chiller 40-45 deg f
Thanks

[Andy P]

Hi Mike - you could try DuPont's ISCEON MO49 which will act as a drop in. It is mainly targetted at car a/c but will work fine in your application, and is particularly good in higher ambients. There are also others if you can't find a DuPont stockist, but make sure you use something compatible with mineral oil

cheers

Andy P

[Raven]

Hi Mike,
R409A is what we use here in London as a drop in for
R12 not that there is a lot of use for it now.

Hope this helps,
Cheers,
Raven

[bobkellyb]

There several to choose from, I have found R409a ok
but latley have been using SP34E, (134a with some additives so it can be used with mineral oil)

[mikejen]

Thanks everyone will need to get the Refrigerant from the States as no one on the island has the Refrigerants you have mentioned