CPSC, Invensys Building Systems Announce Recall of Siebe Actuators in Building Fire/Smoke Dampers

Actuators hold open fire and smoke dampers in a building's heating, ventilation and air conditioning (HVAC) system. A spring mechanism integrated with the damper, is designed to close the damper during a fire to limit the spread of smoke, fire and fumes. These MA-200 and MA-200-1 series actuators were used in fire and smoke dampers that were manufactured by various companies from December 1993 through October 1999, which were installed by private contractors in commercial and residential buildings. The actuators have manufacture date codes of 9348 through 9947.