Optimized rectangular fire damper with a fire resistance up to 120 minutes, available in small dimensions (starting from 100 mm. height). A minimal pressure loss is guaranteed thanks to the thin blade and the transmission located outside the tunnel.
- Easy to install.
- Optimal free air passage and minimal pressure loss.
- Optimal acoustic performance.
- Higher net building volume.
- Air-tightness class C according to EN1751.
CU-LT+MFUSP : Rectangular fire damper CU-LT with automatic unlocking mechanism MFUSP. It unlatches the damper blade when the temperature in the duct rises above 72ºC. Due to the rise in temperature the fusible link melts. This causes an armed internal torsion spring to unwind and thereby release the damper blade into its safety position (closed). the fusible link must be replaced after functioning. The damper can be unlocked manually to test the proper functioning of the mechanism. The damper must be reset manually.
CU-LT+ONE T 24/230 FDCU : Rectangular fire damper CU-LT with the spring return actuator ONE T 24/230 FCDU. When powered, the actuator moves the damper blade into its stand-by position. When the power is interrupted or when the temperature in the duct exceeds 72ºC, the internal armed spring brings the damper blade back into its safety position. the motor can be reset manually by using a standard 9V battery. An integrated LED indicates the open or closes position of the motor. The included beginning and end of range switches indicate the position of the damper blade (on a control panel).