Quote:
Originally Posted by Speedbumpauto
One thing I think you should do and I will do to mine, is wire the fan relay into the A/C compressor clutch circuit so that any time the compressor is working, the fan is working. Also, a manual fan relay override switch is nice to have in the cab and is easy to do. That way you can keep your auto fan option at 190 or so, but if you're at a light and or heavy traffic and see the temp starting to climb, you can switch on the fan ahead of time. I do it all the time in the summer in the hot rod.
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Luckily the controller has a built in relay circuit for the AC compressor.