Johnson Controls P352PN-3 Electronic Proportional Pressure Control, 90 to 250 Psi Setpoint, 10 to 100 Psi Throttling Range, 24 Vac ( Supplied by Y350R Power Module ), 0 to 10 Vdc and 0 to 20 mA Analog Output, Direct or Reverse Action is Jumoer Selectable,