Siebe actuators
Check against the official notice below — it lists the full affected range.
Invensys Building Systems has recalled MA-200 and MA-200-1 series actuators used in fire and smoke dampers installed in commercial and residential buildings. These actuators, manufactured between December 1993 and October 1999 (with date codes 9348 through 9947), contain a spring mechanism designed to close dampers during a fire and prevent smoke, fire, and fumes from spreading through a building's ventilation system. The recalled actuators can jam, preventing the dampers from closing properly during a fire, which could allow smoke and fire to spread through the building and potentially cause serious injury or death to occupants.
To obtain a free replacement actuator, building owners must test their actuators and report the results to Invensys. Only actuators that fail testing will be replaced.
Written by software from the official notice below. Not reviewed by a lawyer.
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. The recalled actuators can jam and prevent the dampers from closing. If dampers fail to close during a fire, serious injury or death can be suffered by building occupants because smoke, fire and fumes can spread through a building's ventilation system.
To be eligible for a free actuator replacement, the building owner must test the actuator and report the results to Invensys. Only actuators that fail testing will be replaced.
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.
Official record: U.S. Consumer Product Safety Commission ↗
Republished from the official source above; details can change — the source record controls.