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Re: Can someone 'splain me POA valve vs original?
Quote:
Originally Posted by tdangle
This is something I really don't understand. The POA opens at a specific pressure allowing flow back to the compressor. If R134 runs at a higher pressure compared to R12 why is the POA valve actually adjusted to a lower pressure. I must be missing something here.
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30 psi with R12 is 32 degrees.
With R134a, 30 psi would be 35 degrees.
Lowering the pressure allows the core to get colder.
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