Bryan, Thanks for your help--I am home now and cant wait to go try this
out--with your help-- the worst this thing can do is run backwards--then I will
switch wires--thanks again this is what makes "THE LIST" so great. wmts
>
> From: "Bryan A. Savage Jr" <basavage@earthlink.net>
> Date: 2002/09/12 Thu AM 01:43:54 EDT
> To: wmtsmith@landracing.com
> CC: land-speed@autox.team.net
> Subject: Re: Electrical Help
>
> Bill,
> First wire color.
>
> Black is a hot wire - always. Black to ground = 120 VAC
> Red is the second hot wire in 240 VAC wiring. Red to ground also = 120 VAC,
> Red to Black = 240 VAC
> Some 240 equipment use 4 wires. Black, Red, White (return or common)
> and Green (Earth ground - water pipe, copper stake in ground or rebar in a
>slab)
> You need at least three. Two hot and one earth ground (green).
>
> Soo..
> Wrap red duct tape around the incoming white wire and just hook red to red
> and black to black - sort of.
>
> A) The best way. Buy a two pole pressure switch.
> Incoming red and black to pressure switch pole one and two then
> red and black from the switch to red and black on the motor.
> Green to the motor frame or metal the motor is solidly bolted to.
>
> B)
> If the pressure switch is a single pole unit and will handle the current---
> -->> THIS IS NOT THE SAFEST WAY TO DO IT. I RECOMMEND BUYING A DUAL
> POLE/CONTACT PRESSURE SWITCH FOR SAFETY'S SAKE.
> Incoming red to motor red.
> Incoming black to pressure switch then a BLACK wire from the other side of
> the pressure switch to the black motor wire.
>
> Rotation may be controlled by wiring under the cover in the motor.
> Not all motors have this option.
>
> I hope this helps and be careful,
> Bryan
>
>
> wmtsmith@landracing.com wrote:
>
> > I am rebuilding an air compressor for my grage shop. I had to buy a new
>motor--single phase 220v.
> >
> > I need std. rotation ie. counter clockwise.
> >
> > How do I wire the pressure switch in? Also how to pair the big yellow and
>blue with the
>
>
> small red and black with my white and black incoming 220v. thanks in advance
>wmts
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