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This depends on the refrigerant and the condensing medium, but essentially:
R-22: do not consistently exceed 275 psig running pressure;
R-410A: do not consistently exceed 445 psig running pressure.
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Why is early detection of high blood pressure important?
Early detection of high blood pressure can limit damage to your heart and arteries!
What is a high frequency word?
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That will depend on the specific laws in the jurisdiction. In general, anything over .08 BAC is considered a DUI. There is no 'upper limit.'
