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In Reply to: air conditioner Question 12 vs 134??? more posted by justin on June 16, 2000 at 18:04:42:
I know some one that spent $3k having their A/C repaired and upgraded to R-134a and there still having trouble. Can you imagine that. I would only upgrade when the system needs a new compressor. Even the biggest system only take a couple of pounds of freon. You would most likely be way ahead recharging with R-12 unless it leaks like a sieve. The system was designed for R-12 and trying to retrofit by flushing and only replacing the freon will most likely be less than satusfactory.