someone will tell me i am wrong for this, i will wire those 2 contactors together every chance i get. This can cause a "voltage drop" on the entire building when the compressor starts, dimming the lights. if it is an industrial plant or another commercial building with a large power draw i have never had a complaint from doing this. the entire purpose of part winding start from my understanding is to limit the inrush current. I may be wrong about this.