Here's a link to the Procom Owner's Manual website. However, the Model Number you listed doe not sound like a Procom Model #.
http://www.worldmkting.com/owners_manuals.htmAlso, all vent-free heaters, fireplaces, gas log sets, etc come with the regulator built-in. Are you trying to replace one you think doesn't work? Or are you trying to convert it from one gas type to another?
If it's the latter, there is no conversion approved for vent-free gas appliances. Plus, if you could, it would take more than just the regulator to do it. Totally unsafe to do.. Please don't attempt it.