Installation, Operation and Maintenance ManualVariCool® VAV4Subject to change without notice 1020-IM (0818)Wiring DiagramUnited CoolAir provides a wiring schematic for each unit produced To retrieve the diagram for your unit please visitwww�unitedcoolair�com, on your computer or mobile device, scroll to the footer section or Home/industry-resources,enter your serial number in the Serial Search field and press return to retrieve your product-wiring diagram.Your serial number is a combination of the year, month and sequential order of build dateThis action will return the Model number, Job Number and the wiring diagram for viewing as well as downloadingNOTE: Only units shipped since November 2016 are available on the site, for older units please contact the factory directlyat 717-843-4311