Ok, my question here is can you wire up the relay WITH the pressure switch and also manually controll the fan ON and OFF also with a 2 way switch by grounding or powering pin 85 or 86. I got all the parts however after reading through the threads im starting to brain fart. So essentially i can interrupt the ground and controll it via switch to manually turn it on and off?
Below is taken from Sumotoys thread.
3) Since this is a ground circuit, the wires have no 'polarity'. Take one of the leads and attach it to pin 86 (activation ground) on the relay. Take the other lead and attach it to chassis ground.
4) For manual override, you can piggyback another wire to pin 86 to switch in cab, then to ground.
5) Done
Below is taken from Sumotoys thread.
3) Since this is a ground circuit, the wires have no 'polarity'. Take one of the leads and attach it to pin 86 (activation ground) on the relay. Take the other lead and attach it to chassis ground.
4) For manual override, you can piggyback another wire to pin 86 to switch in cab, then to ground.
5) Done
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