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Old 06-22-2011, 07:29 AM
FireRanger FireRanger is offline
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Default Re: Air Conditioning and Gas Consumption

If the air across the evaporator coil is moving faster (higher blower setting), it can exchange more heat and the freon will return to the compressor warmer. If you have it on a lower setting or recirculating inside air, it will exchange less heat and return to the compressor cooler.

But remember there is no thermostatic control on any of this. The compressor works solely on it's output pressure. That output pressure really isn't dependent on it's incoming freon temperature. So the blower speed, max ac, etc should theoretically have no effect on this. The pressure goes from low to high due to mechanical design (expansion valves, etc).

So I think the blow speed and max ac settings effect on fuel consumption would be negligible if at any.
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