Some Tempstar and other units have two speed condenser fan motors. They have a thermostat sensor. Somewhere around 80* or below ambient it will be on low speed. As ambient temp increases a relay switches it to high speed.
On the ones I see the two brns to capacitor, white to common, black is high, and red is low. Both black and red are only used on two speed systems with a relay. If you have a single speed, only use one, either black or red usually black. As said if both are tied together you will burn the motor up.