Predictions on all the freon leaked out and need AC system replaced

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On Thu, 12 Jun 2014 20:27:52 -0400, Stormin Mormon

Why? How could it let air in as fast as the compressor pulls it out?
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On Mon, 16 Jun 2014 09:03:42 -0400, Stormin Mormon

Let me ask this, is it your belief that the system, one with a small leak, will actually not really "equalize" on the high and low side but that only the side with the small leak will equalize to atmospheric whereas the side that didn't have the small leak will retain a higher pressure, higher then atmospheric, then the side that has the small leak. That is the only scenario under which I can see how your experience can be explained.
If that's not clear, let me explain as if I was you, with the small leak on the low side, the low side winds up at zero (that is it's at atmospheric pressure). The high side, on the other hand, doesn't go to atmospheric but retains a pressure higher then atmospheric. Then when you start the system the low side reads zero/atmospheric, while the high side pumps up to something higher. Similarly, if the leak was on the high side then the high side is at zero. The low side however doesn't go down to zero. When you start the system you see slight pressure on the low side because it wasn't at zero to start with.
I'm not sure I really think that's possible unless the compressor valves and expansion valve can all act in such a way as to trap refrigerant in each side with at least a few psi *residual pressure difference*. My experience is with Automobile AC and in my experience those system equalize to the same pressure on both sides whether the leak is in the high side or the low side.
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