A/C Trinary Switch

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Apr 25, 2012 | 10:34 AM

Class of 81

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1st Gear

Joined: Jun 2011

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A/C Trinary Switch

I have a 1981 which I recently updated to include a ZZ430 and 200-4r. I am in the process of finishing the A/C system. Currently I have the Dewitts dual spal fans coming on when triggered by the A/C compressor, which leaves them on at highway speeds and is unnecessary. I would like to put in a trinary switch to trigger the fans as high pressure in the system rises. Does anyone know what the part number is for the switch and where everyone is mounting it? The stock system has been upgraded to r134.

Last edited by Class of 81; Apr 25, 2012 at 10:36 AM.

Apr 25, 2012 | 11:58 AM

Garys 68

Melting Slicks

Joined: Sep 2004

Posts: 2,655

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Not sure on the stock switch, but I've got them from Vintage Air and Classic Auto Air, about $35.
They replace the stock binary/compressor switch. On my aftermarket, that's on the dryer.

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