Alpine® Redi-Reset® NF
NF Non-Fail Safe Fusible Link Release / Sash Chain
FEATURES AND CHARACTERISTICS OF THE NON-FAIL SAFE RELEASE
»U.L. Classified For Fire Doors up to 32’ wide by 25’ high.
»This rolling door operator is a highly dependable automatic closing due to a simplified design.
»Slower, safer, uniform closing speed of approximately 6 inches per second.
»This non-fail safe release is easily tested with a touch of a button on the control station.
»The operator system can be activated by a fusible link or a thermal sensor without the requirement for a mechanical release device.
»The operator is capable of closing the rolling steel door in the event of a fire emergency and eliminates the need for a mechanical resetting.
»Operators can be fitted with back-up battery support which allow the door to be remain open and fire ready in the event of a power failure.
The Alpine Redi-Reset-NF rolling door operator provides high quality automatic fire door closing control and eliminates the hassle of mechanical resetting. This operator system is available for both fire doors and counter fire doors. The Redi-Reset-NF never needs to be mechanically reset. The operator will close the fire door without releasing spring tension or disengaging the motor operator. The closing speed of the fire door will not exceed 9″ per second.
Redi-Reset-NF operator system utilizes a fusible link release device which is connected to a sash chain. Because of this automatic closing feature, a sensing edge is required to react to a possible obstruction in the opening. After the alarm systems are cleared and power is restored, the resetting of the non-fail safe release is completed at floor level with the touch of the “open” button on the control station. The fire door is now ready for both normal and or emergency operation.
A key benefit of the Redi-Reset-NF rolling door operators is that it can be activated by a fusible link or thermal sensors, fire alarm systems or smoke detectors without the need for a mechanical release device. Door operator testing is completed quickly and easily.