Forum > Heating & Air Conditioning Repair

r22a freon substitute

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stocpro47:
can these new freon substitutes be injected into systems[window ac/refrigerator] with real freon or must the freon be recovered first???

shieldcracker:
Yes, most of the refrigerant substitutes work with POE or AKB oils, instead of MO found in r-22/12/502 older products.

tgoods:
The old refrigerant must be recovered. The drop-in replacements will work with mineral oil. Most of them have a little butane in the mix so they're miscible with mineral oil.

niobrara:
Agree with tgoods they work,but do not mix them. Recover and pump the old out first.

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