Girlfriend decided to not use central ac unit (dying, the ac unit that is) Thought we might be able to use the feed to run a 18,000 BTU window ac unit. But looking in the subpanel outside the MH, the ac unit was being fed by what seems to be two large hots and a ground.
How can I convert this to four wire to feed new sub panel. I wanted to use sub panel to service the ac unit and perhaps another circuit to add a couple more outlets along the same wall the subpanel would be on.
MH is served on other side by meter and a pedestal with a 70 and a 60 amp breaker. The sixty amp breaker was supplying the power to the ac unit.
Any help out there Please.

Sorry , but a four wire cable or conduit with four wires will need to be installed from the main panel to the new subpanel.