You want to connect the fan to the Break Out Board ( BOB)?
Firstly,the fan will rated at 24VDC as that is a standard voltage. 22v is close enough.....
Also, I would suggest it best NOT to power the fan from the BOB, if you can. Best to have the BOB on its own dedicated supply to reduce the chances of any electrical problems.
these machines can be finicky.....
Do you have a different 24VDC souce you can use?
Just my 2c worth.....