Its not an IRV33 or 34, or 66. Our 2017 Roo 23WS has an IRV34.
Must be the newest junk to come out. The IRV stuff is distributed by Patrick Industries
. They are about even keel with Lippert and Furrion on the garbage meter as far as the stuff they distribute. The website in the link will not be much help as you'll find out. When a company distributes products and their website is as unhelpful as this one is and does not provide any links to support and documentation, that says volumes about the quality of the product itself. Take notice there is no link to contact support, only sales.