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Old 09-28-2019, 10:25 AM
Caseyc's Avatar
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Join Date: May 2014
Location: Florida
Posts: 56
83 240d condenser capacity question

I finally got around to overhauling my AC. I replaced a faulty R4 compressor with a new 4 seasons R4. I also replaced the OEM condenser with a 16x20 parallel flow and neccessary hoses. A new drier and TXV, and a 126 fan in place of the smaller original. I flushed, nitrogen tested and vacuum tested before adding 3 12oz cans of r12. I intended to add 4 cans or as close to 2.9lbs as I could get, but I noticed after the 3rd can, the compressor is running smoothly and NOT cycling, and there are no bubbles in the site glass on the drier.

Cooling is sufficient, ambient temp is mid 80s with high humidity.
Lo is reading around close to 50 and Hi around 175.

Is it possible that the condenser capacity is reduced from the OE condenser, causing 36oz of R12 to be suitable? Should I stop here or add more?

Best regards
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