I have purchased a nice set of books from Autoacsystems.com. I have tried to contact them about one of their charts on the books that doesn't make sense to me,
but it seems they do not reply to their Email anymore.
There is a Chart that they have which tells the General Vent temps on different temperature days with different humidity for R12 and R134a (And it varies with car to car) but it's a General Rule of thumb
of what to expect.
From 70F upto 90F.... R12 Always shows about 2-4 Celcius Colder than R134a
However at 100F Ambient day at upto 30% Humidity..... it shows that R134A outperforms R12.
Does anybody have an Explanation for this? As it has always been to my knowledge that R12 Would always perform better... so I cant see why under certain conditions on a 100F Day... R134a can perform better.
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