Confirmed through DaikinApplied that our DK-RC-BAC-1 is compatible via P1P2 with the EKEBMCBAV3 single unit interface, but not the EKEBFCBAV3 multiunit interface.
This EKEB is an interface between the F1F2 VRV comm bus and a standard AHU.
https://www.daikinac.com/content/assets/DOC/Product%20Brochures/PF-VAHUIK-01-16.pdf