Ok, this has been coming up a lot. The behavior of the preset up and preset down functions has changed between different versions of the H9 software, and the short answer for your problem is that if you upgrade the software on your H9 to v4.8.0[1] it will do what you want.
I'm pretty sure that you have an H9 Core which currently has 4.5.0[3] or 4.5.0[4] installed, because the behavior of those functions is what you're describing when that H9 software version is installed.
I gave a longer explanation of the differences between the H9 software versions in this forum thread if you want the complete story. Although the thread is about the aux switch the same applies to MIDI CC values: http://forum.eventide.com/cs/forums/t/9444.aspx
