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CU-LT-L500 - Mechanisms
MFUS(P) - Mechanism with fusible link
The operating mechanism MFUS(P) automatically unlocks the blade when the temperature in the duct exceeds 72°C. The damper can also be unlocked and reset manually.
- Unlocking button
- Resetting handle
- Cable entrance
Variants
-
MFUSP
Mechanism with fusible link
Options - Switch
-
FDCU
Limit switch 'open/closed'
Unlocking
-
manual unlocking
press the unlocking button (1). -
automatic unlocking
the fusible link melts when the temperature reaches 72°C in the duct. -
remote unlocking
n/a
Resetting
-
manual resetting
turn the resetting handle (2) 90° clockwise (or use a 10 mm hex key). -
motorised resetting
n/a
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 ST
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 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).
ONE-X - Spring return actuator with integrated communication module.
The ONE-X is a spring return actuator with integrated communication module designed to simply operate Rf-t fire dampers of all sizes, automatically or remotely. The ONE-X is available in two versions: 24 V and 230 V.
- Unlocking button
- Blade position indicator
- LED red: status
- Battery compartment
- LED blue: communication
- LED orange: error message
- Supply
- Bus cable
- Bus cable
Variants
-
ONE-X 24
Spring return actuator ONE-X 24V (with fusible link T) with integrated communication module -
ONE-X 230
Spring return actuator ONE-X 230V (with fusible link T) with integrated communication module
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
via ZENiX controller
Resetting
-
manual resetting
Open the battery compartment (4) and press a 9V battery against the contact springs. Hold this position until the red LED (3) emits a continuous light. Control whether the indicator (2) indicates that the damper blade is open. Remove the battery. Close the battery compartment. -
motorised resetting
via ZENiX controller. By applying voltage during first use.
BFL(T) - Remotely controlled spring return actuator
The spring return actuator BFL(T) is especially designed to operate fire dampers remotely. The BFL(T) variant is intended for fire dampers with smaller dimensions (CR60, CR120, CR2 with ø ≤ 400 mm, CRS60 with ø ≤ 315 mm, CU2 / CU2-15 / CU4 with W+H ≤ 1200 mm or for CU-LT and CU-LT-1s). For Markage FD with H = 200 mm or H = 2200 mm (in combination with BFT motor).
- Locking button
- Plug (ST)
- Access for manual resetting
- Thermo-electric tripping device (T)
Variants
-
BFL24
Spring return actuator BFL 24V -
BFL24-ST
Spring return actuator BFL 24V with plug (ST) -
BFL230
Spring return actuator BFL 230V -
BFLT24
Spring return actuator BFL 24 V with thermo-electric fuse (T) -
BFLT24-ST
Spring return actuator BFL 24 V with thermo-electric fuse (T) and plug (ST) -
BFLT230
Spring return actuator BFL 230 V with thermo-electric fuse (T)
Options - Switch
-
SN2 BFL/BFN
Auxiliary limit switch 'open/closed'
Unlocking
-
manual unlocking
place the locking button on “unlock”. (In case of BFLT: the damper can alternatively be unlocked by pushing the “test” button on the thermo-electric fuse) -
automatic unlocking
the thermo-electric fuse reacts as soon as the temperature reaches 72°C (type BFLT). -
remote unlocking
by interrupting the power supply.
Resetting
-
manual resetting
turn the enclosed handle anti-clockwise. To block the motor, place the locking button on “lock” -
motorised resetting
switch off the power supply for at least 10 seconds. Supply the actuator (respect the prescribed voltage) for at least 75 seconds. The resetting stops automatically when the end of range is reached (damper open) - it takes about 60 seconds to reset the damper - or when the power supply is interrupted.
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