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ONE
Spring return actuator for remote control
The spring-return actuator ONE is designed to easily operate Rf-t fire dampers of all sizes, automatically or remotely.
Six models are available, 24 or 230 volt, with FDCU or FDCB position switches; and optionally with plug (ST).
- Unlocking button
- Blade position indicator
- LED
- Battery compartment to reset motor
- Plug (ST)
Variants
-
ONE T 24 FDCU
Spring return actuator ONE 24V (with fusible link) + unipolar beginning- and end-of-range switch -
ONE T 24 FDCU L
Spring return actuator ONE 24V (with fusible link) + unipolar beginning- and end-of-range switch -
ONE T 24 FDCU ST
Spring return actuator ONE 24V (with fusible link) + unipolar beginning- and end-of-range switch and plug (ST) -
ONE T 24 FDCU ST L
Spring return actuator ONE 24V (with fusible link) + unipolar beginning- and end-of-range switch and plug (ST) -
ONE T 230 FDCU
Spring return actuator ONE 230V (with fusible link) + unipolar beginning- and end-of-range switch -
ONE T 230 FDCU L
Spring return actuator ONE 230V (with fusible link) + unipolar beginning- and end-of-range switch -
ONE T 230 FDCU ST
Spring return actuator ONE 230V (with fusible link) + unipolar beginning- and end-of-range switch + plug (ST) -
ONE T 230 FDCU ST L
Spring return actuator ONE 230V (with fusible link) + unipolar beginning- and end-of-range switch and plug (ST) -
ONE T 24 FDCB
Spring return actuator ONE 24V (with fusible link) + bipolar beginning- and end-of-range switch -
ONE T 230 FDCB
Spring return actuator ONE 230V (with fusible link) + bipolar beginning- and end-of-range switch
Unlocking
-
manual unlocking
shortly press the unlocking button (1) once. -
automatic unlocking
the fusible link reacts as soon as the temperature in the duct reaches 72°C. -
remote unlocking
by interrupting the power supply.
Resetting
-
manual resetting
open the battery compartment (4) and press a 9V battery against the contact springs. Hold this position until the LED (3) emits a continuous light.
Check whether the indicator (2) shows that the damper blade is in the open position.
Remove the battery, the LED fades away.
Close the battery compartment. -
motorised resetting
switch off the power supply for at least 5 sec. Power the actuator (respect the prescribed voltage) for at least 75 sec. The resetting stops automatically when the end of range is reached (damper open).
