Distribution Doors

The distribution door positions are determined by the control components. The distribution doors open and close air flow passages inside of the air distribution system to establish air flow direction. There are two distribution doors inside of the plenum assembly, panel/defrost door and panel/floor door. The panel/defrost door can be positioned to either block off, or direct, air to the panel ducts or defrost ducts. The panel/floor door can block off or direct air to the panel/defrost ducts or the floor duct.