Quote:
Originally Posted by adrive7
Something I have wondered about this is Max A/C means the compressor does not work as hard, but it requires another fan to kick on (which is considerably louder than the normal fan, but probably irrelevant) which requires a larger load on the alternator.
So, which wins out? A more frequent but intermittent A/C compressor or a constant draw fan? I don't know the answer.
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Coyote X is correct; the same fan is running, but with an interior intake open. This makes it more noisy and also blows harder since there's less resistance on the fan. I bet the blower motor uses the same amount of electricity on fresh or recirculating settings.