On/Off Compressor Switch in Cab and Pressure Switch Wiring

[chaddurst]

Ok guys, Im almost done redoing my bag setup. Just have a few quick wiring questions. I have a On/Off switch for my Viair 450's in my cab to shut them on and off. It is a three-prong switch and I have figured out that the top prong is the ground and the bottom two are power prongs. My question is where do the two power prongs go as far as wiring to the relays to switch them on/and off (where do I wire them in at?) Also, I have a EAI adjustable Pressure switch and I am needing to know which of the two wires (purple and Blue) to wire to the relay system and which to run as a 12v+ constant?

Thanks, Chad

[BigChevMan]

what type of relays?

[chaddurst]

http://www.suicidedoors.com/products/30-40_amp-relay-socket.htm

Like this.

[chaddurst]

bump

[Mike]

quick paint diagram

[Mike]

I have no idea why your switch would have a ground. You should really need only a 2way/prong on/off switch. You will have power coming from your pressure switch to the toggle, which when switched on would send power to the relay, which will turn on the comps. The relay should have 5 wires.

1= to switch (this activates the relay
1= to ground
1= to constant power
1= to where you want power to go when switched on
1= where you want power to go when relay is switched off (not used in your case)

If you need a diagram of which one is which I can find one for you.

[HAZARDOUS1500]

I have no idea why your switch would have a ground. You should really need only a 2way/prong on/off switch.

it might have a light on it. the one i have for my fog lights has a light on it and a ground but i just didnt ground it cause i didnt want the light.

[AntiBling]

it might have a light on it. the one i have for my fog lights has a light on it and a ground but i just didnt ground it cause i didnt want the light.


:word: Thats the first thing I thought.

[chaddurst]

:word: Thats the first thing I thought.


Yep it has a light.

[chaddurst]

quick paint diagram


Thanks Mike, which is which on the pressure switch? I have a purple and a blue wire on an EAI adj Pressure switch

[Mike]

doesnt matter, when it hits the target pressures it will open/close the circuit which is basically connecting the two wires together. Doesnt matter which order

[supermachine]

i have mine setup up with a illuminated switch on my dash, when the compressor is running the switch lights up letting me know it's on ( exhaust and stereo is kinda loud) it's a nice feature to have. plus i can just flip the switch and kill the compressor if i don't need it running

[Mike]

I have a 3 way toggle so I can choose to run either my engine driven or electrics