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Here were the readings before after approximately 10 months of A/C non-use:
High 20, Low 20, Condenser 90F degrees, Vent N/A (clutch not engaging)
I put in one 14 ounce R12 can and here is after:
High 160, Low 35, Condenser 92F degrees, Vent 78.
My read is that the system is still low and I could get the vent colder, but not so low as to prevent the low pressure switch from cutting off. I've got some more R12, but I don't think I'll push it any further until I can recover and recycle properly. I want to ensure I've got the right amount of oil and patch any leaks.
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