I know this is not really a controls questions, but we controls guys probably have more info on VAVs than most mechanical guys. Has anyone got any infomation on a Trane box Model# HRB06GXF. The tag calls it a VariTrane Variable Volume Unit, but the guy who has looked at it says that it does not have the usual VariTrane Air Valve, but some linkages and springs. If anyone has any cut-sheets, IOM or anything on these units, can I please get a copy.
EDIT: It is a pneumatically controlled box.