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Re: SkinnyG's '61 Apache
I'm using a trinary switch on my truck as a secondary trigger for the fan controller, and it works well. The one I have only activates the fan if the high side pressure exceeds 227 psi. I'm getting vent temps in the mid-30s with this set up.
Trinary Safety Switch specs:
Low is off @ 28psig - and on @ 29psig
High is off @ 454psig - and on @ 369psig
Fan is on @ 227psig - and off @ 185psig
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