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Old 08-28-2005, 05:01 PM
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A/C question

O.K. Ive installed A/C, everything works great! I have electric fan which I have hooked up with a relay to my manual switch that goes to my compressor. Do I have to have my compressor hooked all the time with my 12volt feed when I turn it on? Because if not then I will take it off my manual switch because I really don't need the fan all the time! As of now everytime I turn on my A/C I turn on my fan (which is how I get my 12volt feed) Advise, thanks Dana

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Old 08-28-2005, 06:46 PM
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What kind of compressor is this?

As a rule A/C compressors are not fed with 12 volts constant and are just cycled with a pressure switch. If your compressor has an internal pressure switch I guess you have to have 12 volts on it all the time.

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Old 08-28-2005, 07:31 PM
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re:AC question

I've always used a fan that is controlled by engine temp, manual override, and then from the binary switch on the drier to the fan relay- that way the fan comes on whenever the compressor is cycling. I've read that electric fans use minimal current once you're moving along. Bill
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