View Full Version : Changing from 507 to 22 in a cold store.
babs jolayemi
24-02-2009, 09:51 AM
Hi members, kindly help in advice on changing a cold store of 1200 metric tons using R502 gas into R22. What can be the effect on temperature and other thing that might affect the efficiency. Thanks.
thebigcheese
24-02-2009, 08:59 PM
in a few months will u be changing the r22 again then
Dont think Nigeria is banning 22 yet big cheese:mad:
The thing to watch is what oil is in the compressor and flushing the system to prevent acid build up.
But it may be worth considering a different refrigerant that is covered by the kyoto agreement maybe 417a ??
But that would mean complete oil change to synthetic and a very good flush and a good triple vac
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