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Old 09-14-2015, 07:43 PM   #1
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A/C units repIacing R22 with R134a

Has anyone replaced their R22 with R134a ? I bought a can of the R134a which came with a cheap guage and hose but it will not connect to the R22 fittings. Can anyone direct me to exactly what fitting I need to charge with these throwaway cans. I bought a R12 to R134a fitting thinking R12 & R22 took the same fitting but no joy.

Yes I know all the negatives but this is`a rusted out piece of crap with a slow leak that I want to squeak through the rest of the season.
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Old 09-14-2015, 08:08 PM   #2
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R-22and R-134 are NOT the same ..R-134 is the replacement for R-12.! R-410 is the replacement for R-22. Do not mix them. You must recharge your R-22 with R-22 .
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Old 09-14-2015, 09:16 PM   #3
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No wonder I couldn't find a fitting. Thanks, found out r424a is drop in replacement.
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Old 09-15-2015, 08:24 AM   #4
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But where can you buy that? Please let us know as I'm looking at a similar project
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Old 09-15-2015, 09:54 AM   #5
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You need a license to buy R12 or R22, not sure about any of the others. I have a 25# can of R22 but no more R22 A/C units. Anyone in the Houston area need any?

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