So if you set 08 to 8000 RPM, and 09 to say 100 RPM (lower than what you would ever run it at but high enough that it wouldn't be on at 0 speed,) would it connect one output at >= 100 RPM, then another output when >= 8000?
If so you can do some relay logic, probably need 2 relays. If output A is for 8000 RPM and B is for 100 RPM, you need !A || B. Which with relays you should be able to implement with 1 NC or dual throw relay and 1 NO or dual throw relay. A would be wired to the coil of the NC relay, and the output of the NC relay would be wired in series with output B to the coil of the NO relay (with the NO Contacts wired to the fan.)