I have a 622 transmitter and can probably find a hard-copy of the manual. I could scan some or all pages if I need to. I can also probably answer any specific question you may have. let me know. I searched Horizon web site for the 622 manual and it does not seem to be there. The 652 manual is still there and the programming is similar. you may want to refer to this manula as a reference until you get the exact 622 manual that you need.