Systemair S-BM2 - Smoke Control Damper - MA multi

Smoke control dampers are designed for mechanical or natural smoke and heat extract systems. Its function is to extract toxic gases, smoke and fire or provide a supply of fresh air to fire compartments. Smoke control dampers are fitted with an actuator without a spring; therefore, they have two safety positions, “open” and “closed” and require power even in the event of fire. S-BM2 smoke control damper is designed for the installations listed in the “Installation Methods” section of its Handbook. Highlights • Battery installation of up to 4 dampers • MA – manual intervention (can be used also as an AA classified smoke control damper) The safety position can be adjusted up to first 25 minutes during smoke extraction • Multi - usage in compartments classified as "multi" Can be used also in compartments classified as "single" • Pressure level 2 (-1000 Pa ... 300 Pa) • Casing leakage according to EN 1751, class C • Blade leakage according to EN 1751, class 3 • Exceptional free area and low pressure drop • Inst...