I am not sure if this will help you out any, but here goes:
Line1 & Line 2 are your Hot Power Wires coming into the motor.
It does not really matter which wire goes to which post of the motor.
This will remain true if you are bringing in 110-115-120 (these are all the same, people just refer to them differently) which also is referred to at times as "Low" voltage, and the same goes for 220-230-240 (again, referred to differently) which is referred to at times as "High" voltage.
Whether bringing in Low voltage or High Voltage, the wires you bring in will number only three:
- Hot (potentially Hot)
Low Voltage (115) will have:
- 1 Absolute Hot Wire = Line 1. Normally Black
- 1 Potentially Hot Wire = Common/Nuetral Line 2, normally White
- Ground/Earth = Normally Green
High Voltage (220) will have:
- 1 Absolute Hot Wire - Line 1, Normally will be same color as Line 2 or Black/Red
- 1 Absolute Hot Wire - Line 2, Normally will be same color as Line 1 or Red/Black
- Ground - Green
In either of the above voltages, it does not matter which wire goes where, as long as a Hot wire goes onto Line 1 and the other "Hot or Potentially Hot, if 110", goes onto Line 2. Do not put a Hot wire anywhere else and Do Not put a Ground wire on either Line 1 or 2!
Most Motors are coming out of the factory wired for High Voltage Set up (220), so you will have to move some wires or a terminal block, to set the motor to operate at "Low" voltage (115). These motors are "Dual" Voltage, they have the capability to run either 110 or 220. But they don't magically know which voltage is being supplied.