A/C retrofit R-134a pressures

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10-17-2005, 07:35 PM

copurnikus

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A/C retrofit R-134a pressures

What is the best hi/lo pressure for a retrofit from R-12 to R-134? I have heard if you overcharge it, 134 may lose efficiency... Thanks

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10-17-2005, 10:24 PM

tech

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RE: A/C retrofit R-134a pressures

I only know the low pressure is supposed to be 40 Psi.

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