Carte d'extension v3v diem4 De Dietrich 200014267

The Option board v3v diem4 is an add-on module designed to expand the functionality of compatible burner control systems. It typically enables three-way valve (V3V) management, allowing for more precise regulation of heating circuits. This board integrates seamlessly with DIEM4-based controllers, enhancing system flexibility for multi-zone heating setups. When upgrading or repairing a burner's control logic, this option board provides additional features without replacing the entire control unit.