- Aug 19, 2006
We have a single Coleman unit and would like to add an additional unit come spring. On my coach there are two powered roof vents, one right above the dining area and the other in the bedroom. The one above the dining area has a blocked off 110v box that I haven't opened yet so I am not sure what that is hiding. We would actually like to replace the rear power vent with the new AC unit. Would the wiring that is in place for the power vent handle the AC and would the opening in the roof be the same size? Thanks!