Vanguard 3501 Product Update: Switching 1050 control board to Mercury 310 March 26, 2024 18:19 Updated vanguard-3501-changes.pdf 300 KB Download Related articles Vanguard 3501 Installation Manual with 1050US Controller Vanguard 3501 Swing Part Diagrams Vanguard 3501 Installation Manual with Mercury 310 Controller Mercury 310 Installation and Programming Manual Vanguard 3501 Component Changes Technical Bulletin