Here is a pdf describing the H9 Max preset list:
You can download the H9 Max factory preset list here:
To import this file into the desktop version of H9 Control, click on the Settings button in the bottom right hand corner of H9 Control and go to Import Presets / Preset Lists. On an iOS device you should be able to click on this link and choose to open it in H9 Control which will import it into H9 Control.
Alternatively, you can also reinitialize your H9 to its factory state by turning it off and on again with the right footswitch and the big black wheel pressed, but this will delete your current preset list and replace it with the H9 Max factory preset list.