4/64 | F-B90
•01, 02 – with grille on one side only.
•11, 22 – with grille on both sides.
Types of Activation
•H0
Fire damper with a manual crank activation mechanism and with a spring return release mechanism activated by a
fusible thermal link set to 74°C.
•H2
Fire damper with an activation mechanism H0 + open and closed indication with AC 230 V or AC/DC 24 V contact
switches.
•B230T or G230T (G230T not available for sizes H=250)
Fire damper with an activation mechanism with a Belimo (B230T) or Gruner (G230T) spring return actuator (230V AC)
with an electro-thermal fuse 72°C and auxiliary switches.
•B24T or G24T (G24T not available for sizes H=250)
Fire damper with an activation mechanism with a Belimo (B24T) or Gruner (G24T) spring return actuator (24V AC/DC)
with electro-thermal fuse 72°C and auxiliary switches.
•BST0 or GST0 (GST0 not available for sizes H=250)
Fire damper with an activation mechanism with spring return actuator Belimo (BST0, AC/DC 24 V, supply through com.
unit: AC 230 V) or Gruner (GST0, AC/DC 24 V, supply through com. unit: AC 24 V) with an electro-thermal fuse 72°C
and auxiliary switches, with a Belimo supply and communication unit BKN230-24 or Gruner supply and communication
unit fs-UFC24-2 (other communication units on demand).
•B24T-SR or G24T-SR (G24T-SR not available for sizes H=250)
Fire damper with an activation mechanism with a Belimo (B24T-SR) or Gruner (G24T-SR) spring return actuator (24V
AC/DC) with electro-thermal fuse 72°C and auxiliary switches for Modulated dampers (possibility to open the blade at
the desired angle).
•BSD230T or GSD230T (Only for Grille types 11 and 22 & GSD230T not available for sizes H=250)
Overflow fire damper with Smoke Detector fitted activation mechanism (230V AC) with a Belimo or Gruner spring
return actuator with an electro-thermal fuse 72°C and auxiliary switches, with a Belimo supply and communication
unit or Gruner power supply unit (Actuator powered through transformer and than 24V AC/DC Smoke detector).
•BSD24T or GSD24T (Only for Grille types 11 and 22 & GSD24T not available for sizes H=250)
Overflow fire damper with Smoke Detector fitted activation mechanism (24V AC/DC) with a Belimo or Gruner spring
return actuator with an electro-thermal fuse 72°C and auxiliary switches, with a Belimo supply and communication
unit or Gruner power supply unit (Actuator powered through 24V AC/DC Smoke detector).
Design
The casing and the blades of the F-B90 are made of a galvanized sheet metal. A foam seal with an intumescent seal
that prevents leaks of heat or smoke. The casing has flanges on two sides with a thread to attach to sheet-metal duct
flanges. Two sides of the damper have inserts with a thread to attach the grille. The damper casing and two covers on
two sides give protection to the mechanism and the actuator of the F-B90. They also give access for easy connection.
Composition of materials
Body of the product contains these materials: Galvanized sheet metal; Galvanized steel fasteners; PE tapes and foil
Blades and mechanism access doors of the product contain these materials: Calcium silicate board; Polyurethane foam;
Intumescent strips; Acrylic sealant
The manufacturing processes of these materials agree with local regulations. The product does not contain dangerous
materials.
