And I take it that
"Fan, additional, use with standard or HD fan" is what we colloquially refer to as "Pusher Fans."
If so, ERA's standard method of wiring your HD puller fan and your dual pusher fans is to all come on at that same time,
wham, when the thermostatic switch in the bottom radiator hose grounds on. That momentary influx of current will take its toll on your Smiths ammeter gauge, plus, you don't need all three anyway. Instead, have them wire it up this way:
Cool Modification - For Pusher Fans Only, Though It's a far superior design, if I do say so myself.
