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86 Bronco r12 upgrade

Posted: Fri Aug 22, 2025 9:14 am
by Broke_again
New to the site and searched for answer to no avail.

Upgrading system from r12 to r152 with ester oil. I've placed 2 e-fans in front of condenser. I want to trigger them from the refrigerant on the high side port via a "tee" adapter and trinary? / binary? switch so the fans only come on when needed.

Anyone know of such a switch?

What pressure settings on/off should I be looking for?

Thanks in advance for you guys'/gals' help

Re: 86 Bronco r12 upgrade

Posted: Sat Aug 23, 2025 8:30 am
by Tim
Just run a "relay" setup that triggers off the cycling switch.