Southwind Vacuum Diagram

Old Forum Post

Senior Member
[Loren] Looking for a vacuum diagram for the heater/ac control on an 85 Southwind 27&#039. Have 4 hard lines, black - vacuum, blue - def, red - heater, white - vent, but can&#039t figure out how to plug them in. The control has 7 ports, and I believe 3 are not used.
Any help?