Look at the outside of the home where the electrical connection goes under the home. Look for the sticker that may still be there. It will read something like 120 / 240 volt FOUR wire.
Follow the instructions.
If they were meant to be reconnected at the home it would only need three wires.
One "danger" of reconnecting is that the frame of the home is bonded to the grounding conductor. Connecting the green to the white wire in the home means you could energize the frame of the home.
Alan --
