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Hi/Low 3 Relay Fan wiring with Trinary and Manual Switch
Here's what I came up with. Haven't wired up yet and have no experience with this. Replicated and modified other examples I found. Appreciate any feedback.
Considerations I'm not 100% on:
For the switch, I have the Fan 1 and 2 wires under the dash (going to Terminator) and I was going to splice in right there.
All 86 pins are being fed from the same 12v constant hitting the 30 pins on Relay 1 and 3. Normally 86 is 12v switched but A. these are ground triggered B. This will enable me to run the fans w/ the ignition key off.
The fans are 12v 120W Cold Case fans which suggest 24A load on high. My power feed is to the relays is a single leg (30A, 10 gauge).
05-05-2024, 02:46 PM
Hi/Low 3 Relay Fan wiring with Trinary and Manual Switch 
