I have a Doerr LR22132 240 volt 60hz 3450rpm motor on my air compressor. I need to find out what pins the whit wire and black wire go to. As well as the yellow jumper wire

the rating for the capacitors is printed /imprinted on the capacitors
take them along with the information you have given to a electrical motor rewind shop and they will match them up

The short answer is: No. The longer answer is, the motor and controls were designed to run on 220 Volts, and as such cannot simply be re-wired for 110 Volts. You basically have 3 options: 1) Have a licensed electrician wire in a 220V circuit to your shop/garage/shed for the compressor. 2) Change out the motor for one designed for 110V (finding one that will work could be difficult, and might require modification of mounts, spindles, gears etc and probably not worth the trouble...but technically possible) 3)purchase a step UP transformer which can turn 110V North American household current into 220V.

you'd have to change the voltage regulator, which is usually inside the motor - on newer motors, if they have a separate Power Supply, you can sometimes change it on a slide switch... keep in mind, that 230 is MUCH more effective for a device made for drawing a lot of power - that motor might draw 8-10 amps at 220, which will be 2x that if you go to 110... so, when all is said and done, it might work out cheaper to just spend like $200 and buy a new 110 unit that is similar... but again, depends what you want to use it for...

Due to the nature of power factor correction and other sizing criteria it is best to open the can on the motor that protects the capacitor and order a comparable unit for capacitance, number of sections (- ie, start/run versus Start or Run) plus capacity and working volts AC. Unless ordering from the original compressor supply company, most parts houses will not have a cross reference with that data.

Red and Black should each be connected to the individual power legs, for 230 V operation. The white wire should be connected to ground.

The green should be connected to the chassis, it is ground.
There should be a wiring diagram on it to tell you how to do this, but if not:

There may be T-leads on the motor labeled
P1, P2, T3,T4,T5,T8

P1-L1(black wire)
P2-cap/tape don't use.
T2,T3, and T5 wire nut together
T4,T-8 wire nut together with L2(white)

The power leads will be coming from your switch box on the compressor body itself. Don't wire the 220v directly to the motor, you replace the leads where the first motor was connected on the cutoff switch. There will be only 2 leading from the switch to the motor.

There should be a plate where the ires run thru, and on the plate or motor itself, there should be a diagram shouwing what terminals to connect the leads too.
Hope this helps.

First, take the plate where the wires connect to the motor off, and the solution is normally found in the dust cap for the wiring. If not there, go to the AO Smith website with your motor model number and there should be instructions on which of the numbered leads to group together in order to reverse the rotation. Don't worry- it's easy. Don't forget to unplug everything before changing these wires around.

check your running and starting capacitor. you may want to check your bearing to

Diagram for aosmith motor b381 is here: http://www.electricmotorwarehouse.com/IMAGES/B381_connection.htm

However, I believe that this motor will be more efficient at 230v depending on load conditions. At 115v this motor will draw more amps and tend to run hot, but situation rules. Enjoy