MARKAGE FD - Mechanisms

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).
  1. Locking button
  2. Plug (ST)
  3. Access for manual resetting
  4. Thermo-electric tripping device (T)

Variants

  • 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.

Documents Scroll down/right to view the entire table

File Type Format Date
Technical product brochure KIT SN2Technical datasheet KITpdf [663.53 kB]22/12/2010
Technical product brochure KIT BFLTTechnical datasheet KITpdf [8,518.89 kB]22/09/2023

BFN(T) - Remotely controlled spring return actuator

The spring return actuator BFN(T) is especially designed to operate fire dampers remotely. The BFN(T) variant is intended for fire dampers with large dimensions (CRE60, CR2 with ø > 400 mm, CRS60 with ø > 315 mm or CU2, CU2-15, CU4 with W+H > 1200 mm. For Markage FD with H of 400 and 600 mm or with H = 1200 mm (2 pcs) and with H = 2400 mm (in combination with BFT motor).
  1. Locking button
  2. Plug (ST)
  3. Access for manual resetting
  4. Thermo-electric tripping device (T)

Variants

  • BFNT24
    Spring return actuator BFN 24 V with thermo-electric fuse (T)
  • BFNT24-ST
    Spring return actuator BFN 24 V with thermo-electric fuse (T) and plug (ST)
  • BFNT230
    Spring return actuator BFN 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 BFNT: 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 BFNT).
  • 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.

Documents Scroll down/right to view the entire table

File Type Format Date
Technical product brochure KIT SN2Technical datasheet KITpdf [663.53 kB]22/12/2010
Technical product brochure KIT BFNTTechnical datasheet KITpdf [8,812.72 kB]22/09/2023

BF(T) - Remotely controlled spring return actuator

The spring return actuator B(L)F(T) is specially designed to remotely control fire dampers. The BF(T) model is intended for fire dampers with large dimensions (ø > 400 mm or W+H > 1200 mm). For Markage FD with H ≥ 800 mm and H ≤ 1600 mm (1 piece) or with H ≥ 1800 mm (2 pieces).
  1. Access for manual resetting
  2. Thermo-electric tripping device (T)
  3. Plug (ST)

Variants

  • BFT24
    Spring return actuator BF 24 V with thermo-electric fuse (T)
  • BFT230
    Spring return actuator BF 230 V with thermo-electric fuse (T)
  • BFT24-ST
    Spring return actuator BF 24 V with thermo-electric fuse (T) and plug (ST)

Unlocking

  • manual unlocking
    Use the enclosed handle and turn ¼ anti-clockwise.
  • automatic unlocking
    As soon as the temperature exceeds 72°C (Type BFT).
  • remote unlocking
    By interrupting the power supply.

Resetting

  • manual resetting
    Use the enclosed handle and turn anti-clockwise. To block the motor, turn back a quarter of a turn.
  • motorised resetting
    Switch off the power supply for at least 10 sec. Supply the actuator (respect the prescribed voltage) for at least 120 sec. The resetting stops automatically
    - when the end of range is reached (damper open). It takes about 75 sec. to reset the damper.
    - or when the power supply is interrupted.

Documents Scroll down/right to view the entire table

File Type Format Date
Technical product brochure KIT B(L)F(T)Technical datasheet KITpdf [36,878.14 kB]19/07/2013
Technical product brochure KIT BAETechnical datasheet KITpdf [418.69 kB]17/11/2010
Technical product brochure KIT SN2Technical datasheet KITpdf [663.53 kB]22/12/2010