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I've got a 3 year leak in my AC system. It cools good for two years, then gets weak on the third.
I've got a mechanic buddy with access to a professional recovery/charging station. He removed all of the existing R134a (which was .65 Lbs) and then put a 29.5 inch vacuum on the system for about 1/2 hr. It held the vacuum for the whole time.
Anyway... He wasn't sure how much refrigerant the system was supposed to take. (If there is supposed to be a sticker with this info under the hood, mine has fallen off).
He estimated and put in 1.75 lbs. With an ambient air temp of 75 degrees we got 295 PSI on the high side and 55 PSI on the low side. We never measured the register temperature, but the AC is cooling nice and frosty now.
I'm just wondering how much R134a the system is actually supposed to hold?
I've got a mechanic buddy with access to a professional recovery/charging station. He removed all of the existing R134a (which was .65 Lbs) and then put a 29.5 inch vacuum on the system for about 1/2 hr. It held the vacuum for the whole time.
Anyway... He wasn't sure how much refrigerant the system was supposed to take. (If there is supposed to be a sticker with this info under the hood, mine has fallen off).
He estimated and put in 1.75 lbs. With an ambient air temp of 75 degrees we got 295 PSI on the high side and 55 PSI on the low side. We never measured the register temperature, but the AC is cooling nice and frosty now.
I'm just wondering how much R134a the system is actually supposed to hold?