ETS NORD NORDfire FDMB User manual

NORDfire
FDMB Fire Damper
Square dampers from 160×160 mm to 0,5 m2 (max. dimensions 1000×500 mm)
CE certified acc. to EN15650
Fire resistance up to EIS 120
External Casig leakage class C, Internal leakage class 2 acc. to EN 1751
Damper actuating mechanical, or electrical

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1. Description
1.1 Fire dampers are shutters in ducts of air-conditioning devices that prevent spreading the fire and
combustion products from one fire segment to the other one by means of closing the duct in the
points of fire separating constructions.
Dampers blade automatically closes air duct using a shutting spring or an actuating mechanism
back spring. The shutting spring is started by releasing an initiation lever. The impulse for
releasing the lever can be either a manual one, a thermal one. The back spring of the actuating
mechanism is started when the thermoelectrical starting mechanism BAT is activated, when a
reset button on BAT is pushed or when a power supply of the actuating mechanism is stopped.
The damper is sealed with a silicon packing against smoke penetration after closing the blade.
At the same time, the damper blade is bedded in a material which enlarges its capacity and air
proofs the air duct.
Dampers have two inspection holes.
1.2 Damper characteristics
• CE certified acc. to EN 15650
• Tested in accordance with EN 1366-2
• Classified acc. to EN 13501-3+A1
• Fire resistance EIS 120, EIS 90
• External Casing leakage class C, Internal leakage class 2 acc. to EN 1751
• Cycling test in class C 10000 acc. to EN 15650
• Corrosion resistant acc. to EN 15650
• ES Certificate of conformity No. 1391-CPR-0011/2014
• Declaration of Performance No. PM/FDMB/01/20/1
• Hygienic assessment of fire dampers - Report No. 1.6/pos/19/19b
Fig. 2 FDMB with mechanical controlFig.1 FDMB with actuating mechanism
General information

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1.3 Working conditions
Right damper function is secured under the following conditions:
a) Maximum air circulation speed: 12 m/s
Maximum pressure dierence: 1200 Pa
b) The air circulation in the whole damper section must be secured as steady on whole
surface.
Operation of the dampers does not depend on the direction of air circulation. The dampers can
be located in an arbitrary position.
Dampers are suitable for systems without abrasive, chemical and adhesive particles.
Dampers are designed for macroclimatic areas with mild climate according to EN 60 721-3-3.
Temperature in the place of installation is permitted to range from -30°C to +50°C.
2. Design
2.1 Design with mechanical control
Design .01
Design with mechanical control with a thermal protective fuse which actuates the shutting device,
after the nominal start temperature 72°C has been reached. Automatic initiation of the shutting
device is not activated if the temperature does not exceed 70°C. In case that other start
temperatures are required, thermal fuses with nominal start temperature +104°C or +147°C can
be supplied (this requirement must be specified in the order).
Fig. 3 Design .01
Design .11
Design .01 with mechanical control can be complemented with a limit switch signalling of the
damper blade position "CLOSED". Cable is connected directly to limit switch.
Fig. 4 Design .11
ATTENTION:
Mechanisms are produced in four designs
M1 to M2 , dierence is only in size of inner
spring, which closes the fire damper. For
the size of fire dampers is always assigned
the size of mechanism - Tab 4.2.1. It is not
recommended to use dierent size of mecha-
nism, than given by the manufacturer, other-
wise, there is a risk of fire damper destruc-
tion.
Limit switch
“CLOSED”

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Design .80
Design .01 with mechanical control can be complemented with a terminal switches signaling of
the damper blade position “CLOSED” and “OPEN”. Limit switches are connected via damper
casing, cables are connected directly to limit switches.
Fig. 5 Design .80
Fig. 6 Limit switch G905-300E03W1
Nominal voltage and maximal current AC 230 V / 5A
Class of protection IP 67
Working temperature –25 °C...+120 °C
Fig. 7 Change of mechanical design for the motorised one or vice versa
1- Damper
2- Mounting plate
3- Sealing cover
4- Seal plates
5- Mounting plate cover
6- Thermal fuse
7- Mechanics
8- Actuator
9- Temperature sensor
10- Sensor sticker
Limit switch
“OPEN”
Limit switch
“CLOSED”
This limit switch is possible to connect in
following two versions:
a) if the arm is moving … connect wire 1+2
b) if the arm is moving … connect wire 1+4
1- 1(COM) - black wire
2- 2(NC) - gray wire
3- 4(NO) - blue wire

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2.2 Design with actuating mechanism
Design .40, .50
The damper are equipped by Belimo actuators with spring return and thermoelectric activation
device of BFL, BFN or BF depending on the damper size (furher mentioned as „actuators“).
After being connected to power supply AC/DC 24V or 230V, the actuating mechanism displaces
the damper blade into operation position ”OPEN” and at the same time it pre-stretches its back
spring. When the actuating mechanism is under voltage, the damper blade is in the position
”OPEN” and the back spring is pre-stretched. Time needed for full opening of the flap blade from
the position ”CLOSED” to the position ”OPEN” is maximum 120 sec. If the actuating power supply
is cut o (due to loss of supply voltage, or pushing the reset button on the thermoelectrical starting
mechanism BAT), the back spring displaces the damper blade into the breakdown position
”CLOSED”. The time of displacing the blade from the position ”OPEN” to the position ”CLOSED”
takes maximum 20 sec. In case that the power supply is restored again (the blade can be in any
position), the actuating mechanism starts to re-displace the damper blade into the position
”OPEN”.
A thermoelectrical starting mechanism BAT, which contains two thermal fuses Tf1 and Tf2, is a
part of the actuating mechanism. These fuses are activated when temperature +72°C has been
exceeded (the fuse Tf1 when the temperature around the damper and the fuses Tf2 when the
temperature inside the air-conditioning piping has been exceeded). After the thermal fuse Tf1 or
Tf2 has been activated, the power supply is permanently and irreversibly cut o and the actuating
mechanism, by means of the pre-stretched spring, displaces the damper blade into the
breakdown position ”CLOSED”.
Signalisation of damper blade position ”OPEN” a ”CLOSE” is provided by two limit switches.
Fig. 8 Design .40, .50
Fig. 9 Actuating mechanism BELIMO BFL BFL (BFN) 230-T
AC230 V
BAT
Actuating mechanism

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Fig. 10 Actuating mechanism BELIMO BFL BFL (BFN) 230-T
AC/DC 24
Tab 2.2.1. Actuating mechanism BELIMO BFL24-T(-ST), BFN 24-T(-ST), BFL 230-T a BFN 230-T
Actuating mechanism BELIMO BFL, BFN 230-T BFL, BFN 24-T(-ST)
Nominal voltage AC 230 V 50/60 Hz AC 24 V 50/60 Hz
DC 24 V
Power consumption
- motoring
- holding
3,5/5 W
1,1/2,1 W 2,5/4 W 0,8/1,4 W
Dimensioning 6,5/10 VA (Imax 4 A @ 5 ms) 4/6 VA (Imax 8,3 A @ 5 ms)
Protection class II III
Degree of protection IP 54
Running time
- motor
- spring return
<60 s
~ 20 s
Ambient temperature
- normal duty
- safety duty
- non-operating temperature
- 30°C … +55°C
The safe position will be attained up to max. +75°C
- 40°C … +55°C
Connecting - motor
- auxiliary switch
cable 1 m, 2 x 0,75 mm² (BFL/BFN 24-T-ST) with 3-pin plug-in
connectors
cable 1 m, 6 x 0,75 mm² (BFL/BFN 24-T-ST) with 6-pin plug-in
connectors
Thermal trips duct outside temperature +72°C
duct inside temperature +72°C
Fig. 11 Actuating mechanism BELIMO BF 230-TN, BF 24-ST

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Tab 2.2.2. Actuating mechanism BELIMO BFL24-TN(-ST), BF 230-TN
Actuating mechanism BELIMO BF 24-TN(-ST) BF 230-TN
Nominal voltage AC 24 V 50/60 Hz
DC 24 V AC 230 V 50/60 Hz
Power consumption
- motoring
- holding
7 W
2 W 8 W 3 W
Dimensioning 10 VA (Imax 8,3 A @ 5 ms) 12,5 VA (Imax 500 mA @ 5 ms)
Protection class III II
Degree of protection IP 54
Running time
- motor
- spring return
120 sec
~ 16 sec
Ambient temperature
- normal duty
- safety duty
- non-operating temperature
- 30°C … +55°C
The safe position will be attained up to max. +75°C
- 40°C … +55°C
Connecting - motor
- auxiliary switch
cable 1 m, 2 x 0,75 mm²
cable 1 m, 6 x 0,75 mm²
(BF 24-T-ST) with plug-in connectors
Thermal trips Tf1: duct outside temperature Duct +72°C
Tf2/Tf3: duct intside temperature Duct +72°C

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3. Dimensions, weighs and eective area
3.1 Dimensions
Fig. 23 Design with mechanical control
Position:
1- Damper casing
2- Mechanics
3- Damper blade
4- Inspection hole covering
5- Sensor sticker
6- Hole for camera
* X=23 (AxB≤500x400)
* X=36 (AxB>500x400)
Fig. 24 Design with actuating mechanism
Position:
1- Damper casing
2- Actuating mechanism
3- Damper blade
4- Inspection hole covering
5- BAT thermoelectrical
starting mechanism
6- Hole for camera
* X=23 (AxB≤500x400)
* X=36 (AxB>500x400)

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3.2 Dimensions, weights and eective area
Tab 3.2.1. Dimensions, weights and eective area
A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
160 x 160 - 20 5,5 7,0 0,0113 BFL M1
x 180 - 30 6,0 7,5 0,0137 BFL M1
x 200 - 40 6,0 7,5 0,0161 BFL M1
x 225 - 52,5 6,5 8,0 0,0191 BFL M1
x 250 - 65 7,0 8,5 0,0222 BFL M1
x 280 - 80 7,0 8,5 0,0258 BFL M1
x 300 - 90,0 7,5 9,0 0,0282 BFL M1
x 315 - 97,5 7,5 9,0 0,0300 BFL M1
x 355 - 117,5 8,5 10,0 0,0349 BFL M1
x 400 - 140 9,0 10,5 0,0403 BFL M1
x 450 - 165 9,5 11,5 0,0392 BFL M1
x 500 - 190 10,0 13,0 0,0446 BFL M2
x 550 - 215 10,5 13,5 0,0500 BFL M2
x 560 - 220 10,5 13,5 0,0511 BFL M2
x 600 - 240 11,0 14,0 0,0554 BFL M2
x 630 - 255 11,5 14,5 0,0586 BFL M2
x 650 - 265 11,5 14,5 0,0608 BFL M2
x 700 - 290 12,5 15,5 0,0662 BFL M2
x 710 - 295 12,5 15,5 0,0673 BFL M2
x 750 15 315 13,0 16,0 0,0716 BFN M2
x 800 40 340 13,5 16,5 0,0770 BFN M2
x 900 90 390 14,5 17,5 0,0878 BFN M2
x 1000 140 440 20,0 23,0 0,0986 BFN M2
180 x 160 - 20 6,0 7,5 0,0131 BFL M1
x 180 - 30 6,0 7,5 0,0159 BFL M1
x 200 - 40 6,5 8,0 0,0187 BFL M1
x 225 - 52,5 6,5 8,0 0,0222 BFL M1
x 250 - 65,0 7,0 8,5 0,0258 BFL M1
x 280 - 80 7,5 9,0 0,0300 BFL M1
x 300 - 90 7,5 9,0 0,0328 BFL M1
x 315 - 97,5 8,0 9,5 0,0349 BFL M1
x 355 - 117,5 8,5 10,5 0,0406 BFL M1
x 400 - 140 9,0 11,0 0,0469 BFL M1
x 450 - 165 10,0 13,0 0,0465 BFL M1
x 500 - 190 10,5 13,5 0,0529 BFL M2
x 550 - 215 11,0 14,0 0,0593 BFL M2
x 560 - 220 11,0 14,0 0,0605 BFL M2
x 600 - 240 11,5 14,5 0,0657 BFL M2
x 630 - 255 12,0 15,0 0,0695 BFL M2
x 650 - 265 12,0 15,0 0,0721 BFL M2
x 700 - 290 13,0 16,0 0,0785 BFN M2
x 710 - 295 13,0 16,0 0,0797 BFN M2
x 750 15 315 13,5 16,5 0,0849 BFN M2
x 800 40 340 14,0 17,0 0,0913 BFN M2
x 900 90 390 15,0 18,0 0,1041 BFN M2
x 1000 140 440 20,5 23,5 0,1169 BFN M2
200 x 160 - 20,0 6,0 7,5 0,0149 BFL M1
x 180 - 30,0 6,5 8,0 0,0181 BFL M1
x 200 - 40 6,5 8,0 0,0213 BFL M1
x 225 - 52,5 7,0 8,5 0,0253 BFL M1
x 250 - 65 7,5 9,0 0,0294 BFL M1
x 280 - 80 7,5 9,0 0,0342 BFL M1
x 300 - 90 8,0 9,5 0,0374 BFL M1

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A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
200 x 315 - 97,5 8,0 9,5 0,0398 BFL M1
x 355 - 117,5 9,0 10,5 0,0463 BFL M1
x 400 - 140 9,5 11,0 0,0535 BFL M1
x 450 - 165 10,0 13,0 0,0537 BFL M1
x 500 - 190 10,5 13,5 0,0611 BFL M2
x 550 - 215 11,5 14,5 0,0685 BFL M2
x 560 - 220 11,5 14,5 0,0700 BFL M2
x 600 - 240 12,0 15,0 0,0759 BFL M2
x 630 - 255 12,5 15,5 0,0804 BFL M2
x 650 - 265 12,5 15,5 0,0833 BFL M2
x 700 - 290 13,0 16,0 0,0907 BFN M2
x 710 - 295 13,5 16,5 0,0922 BFN M2
x 750 15 315 14,0 17,0 0,0981 BFN M2
x 800 40 340 14,5 17,5 0,1055 BFN M2
x 900 90 390 15,5 18,5 0,1203 BFN M2
x 1000 140 440 17,0 20,0 0,1351 BFN M2
225 x 160 - 20 6,5 8,0 0,0171 BFL M1
x 180 - 30 7,0 8,5 0,0209 BFL M1
x 200 - 40 7,5 9,0 0,0246 BFL M1
x 225 - 52,5 8,0 9,5 0,0292 BFL M1
x 250 - 65 8,5 10,0 0,0339 BFL M1
x 280 - 80 9,0 10,5 0,0395 BFL M1
x 300 - 90 9,5 11,0 0,0432 BFL M1
x 315 - 97,5 9,5 11,0 0,0460 BFL M1
x 355 - 117,5 10,0 11,0 0,0534 BFL M1
x 400 - 140 10,5 11,5 0,0618 BFL M1
x 450 - 165 11,5 12,0 0,0628 BFL M1
x 500 - 190 12,5 13,0 0,0714 BFL M2
x 550 - 215 13,5 14,0 0,0801 BFL M2
x 560 - 220 13,5 15,0 0,0818 BFL M2
x 600 - 240 14,0 15,5 0,0887 BFL M2
x 630 - 255 14,5 16,0 0,0939 BFN M2
x 650 - 265 15,0 16,5 0,0974 BFN M2
x 700 - 290 16,0 17,5 0,1060 BFN M2
x 710 - 295 16,0 17,5 0,1078 BFN M2
x 750 15 315 16,5 18,0 0,1147 BFN M2
x 800 40 340 17,5 19,0 0,1233 BFN M2
x 900 90 390 19,0 22,0 0,1406 BFN M3
x 1000 140 440 20,5 23,5 0,1579 BF M3
250 x 160 - 20 6,5 8,0 0,0194 BFL M1
x 180 - 30 7,0 8,5 0,0236 BFL M1
x 200 - 40 7,0 8,5 0,0278 BFL M1
x 225 - 52,5 7,5 9,0 0,0331 BFL M1
x 250 - 65 8,0 9,5 0,0384 BFL M1
x 280 - 80 8,5 10,0 0,0447 BFL M1
x 300 - 90 8,5 10,0 0,0489 BFL M1
x 315 - 97,5 9,0 10,5 0,0521 BFL M1
x 355 - 117,5 9,5 11,5 0,0605 BFL M1
x 400 - 140 10,5 12,0 0,0700 BFL M1
x 450 - 165 11,0 14,0 0,0719 BFL M1
x 500 - 190 11,5 14,5 0,0818 BFL M2
x 550 - 215 12,5 15,5 0,0917 BFL M2
x 560 - 220 12,5 15,5 0,0937 BFL M2

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A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
250 x 600 - 240 13,0 16,0 0,1016 BFN M2
x 630 - 255 13,5 16,5 0,1075 BFN M2
x 650 - 265 13,5 16,5 0,1115 BFN M2
x 700 - 290 14,5 17,5 0,1214 BFN M2
x 710 - 295 14,5 17,5 0,1234 BFN M2
x 750 15 315 15,0 18,0 0,1313 BFN M3
x 800 40 340 15,5 18,5 0,1412 BFN M3
x 900 90 390 17,0 20,0 0,1610 BFN M3
x 1000 140 440 18,5 21,5 0,1808 BF M3
280 x 160 - 20 7,0 8,5 0,0221 BFL M1
x 180 - 30 7,0 9,0 0,0269 BFL M1
x 200 - 40 7,5 9,0 0,0317 BFL M1
x 225 - 52,5 8,0 9,5 0,0377 BFL M1
x 250 - 65 8,5 10,0 0,0438 BFL M1
x 280 - 80 8,5 10,5 0,0510 BFL M1
x 300 - 90 9,0 10,5 0,0558 BFL M1
x 315 - 97,5 9,0 11,0 0,0594 BFL M1
x 355 - 117,5 10,0 12,0 0,0691 BFL M1
x 400 - 140 11,0 12,5 0,0799 BFL M1
x 450 - 165 11,5 14,5 0,0828 BFL M1
x 500 - 190 12,0 15,0 0,0942 BFL M2
x 550 - 215 13,0 16,0 0,1056 BFL M2
x 560 - 220 13,0 16,0 0,1078 BFN M2
x 600 - 240 13,5 16,5 0,1170 BFN M2
x 630 - 255 14,0 17,0 0,1238 BFN M2
x 650 - 265 14,5 17,5 0,1284 BFN M2
x 700 - 290 15,0 18,0 0,1398 BFN M2
x 710 - 295 15,0 18,0 0,1420 BFN M3
x 750 15 315 15,5 18,5 0,1512 BFN M3
x 800 40 340 16,5 19,5 0,1626 BFN M3
x 900 90 390 18,0 21,0 0,1854 BF M3
x 1000 140 440 23,5 26,5 0,2082 BF M3
300 x 160 - 20 7,0 8,5 0,0239 BFL M1
x 180 - 30 7,5 9,0 0,0291 BFL M1
x 200 - 40 7,5 9,5 0,0343 BFL M1
x 225 - 52,5 8,0 9,5 0,0408 BFL M1
x 250 - 65 8,5 10,0 0,0474 BFL M1
x 280 - 80 9,0 10,5 0,0552 BFL M1
x 300 - 90 9,5 11,0 0,0604 BFL M1
x 315 - 97,5 9,5 11,0 0,0643 BFL M1
x 355 - 117,5 10,5 12,0 0,0748 BFL M1
x 400 - 140 11,0 12,5 0,0865 BFL M1
x 450 - 165 12,0 15,0 0,0900 BFL M1
x 500 - 190 12,5 15,5 0,1024 BFL M2
x 550 - 215 13,5 16,5 0,1148 BFN M2
x 560 - 220 13,5 16,5 0,1173 BFN M2
x 600 - 240 14,0 17,0 0,1272 BFN M2
x 630 - 255 14,5 17,5 0,1347 BFN M2
x 650 - 265 14,5 17,5 0,1396 BFN M2
x 700 - 290 15,5 18,5 0,1520 BFN M2
x 710 - 295 15,5 18,5 0,1545 BFN M2
x 750 15 315 16,0 19,0 0,1644 BFN M3
x 800 40 340 17,0 20,0 0,1768 BFN M3
x 900 90 390 18,5 21,5 0,2016 BF M3
x 1000 140 440 20,0 23,0 0,2264 BF M3
315 x 160 - 20 8,5 10,5 0,0252 BFL M1

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A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
315 x 180 - 30 9,0 10,5 0,0308 BFL M1
x 200 - 40 9,5 11,0 0,0363 BFL M1
x 225 - 52,5 9,5 11,5 0,0432 BFL M1
x 250 - 65 10,0 12,0 0,0501 BFL M1
x 280 - 80 10,5 12,0 0,0584 BFL M1
x 300 - 90 11,0 12,5 0,0639 BFL M1
x 315 - 97,5 11,5 13,0 0,0680 BFL M1
x 355 - 117,5 12,0 13,5 0,0791 BFL M1
x 400 - 140 13,0 14,5 0,0915 BFL M1
x 450 - 165 13,5 16,5 0,0955 BFL M1
x 500 - 190 14,5 17,5 0,1086 BFL M1
x 550 - 215 15,0 18,0 0,1218 BFN M2
x 560 - 220 15,0 18,0 0,1244 BFN M2
x 600 - 240 15,5 18,5 0,1349 BFN M2
x 630 - 255 16,0 19,0 0,1428 BFN M2
x 650 - 265 16,5 19,5 0,1481 BFN M2
x 700 - 290 17,5 20,5 0,1612 BFN M2
x 710 - 295 17,5 20,5 0,1638 BFN M2
x 750 15 315 18,0 21,0 0,1744 BFN M3
x 800 40 340 18,5 21,5 0,1875 BFN M3
x 900 90 390 20,0 23,0 0,2138 BF M3
x 1000 140 440 21,5 24,5 0,2401 BF M3
355 x 160 - 20 7,5 9,5 0,0288 BFL M1
x 180 - 30 8,0 9,5 0,0352 BFL M1
x 200 - 40 8,5 10,0 0,0415 BFL M1
x 225 - 52,5 9,0 10,5 0,0494 BFL M1
x 250 - 65 9,5 11,0 0,0573 BFL M1
x 280 - 80 10,0 11,5 0,0668 BFL M1
x 300 - 90 10,0 11,5 0,0731 BFL M1
x 315 - 97,5 11,0 12,0 0,0778 BFL M1
x 355 - 117,5 11,5 13,0 0,0905 BFL M1
x 400 - 140 12,0 13,5 0,1047 BFL M1
x 450 - 165 13,0 16,0 0,1100 BFL M1
x 500 - 190 13,5 16,5 0,1251 BFN M2
x 550 - 215 14,5 17,5 0,1403 BFN M2
x 560 - 220 14,5 17,5 0,1433 BFN M2
x 600 - 240 15,0 18,0 0,1554 BFN M2
x 630 - 255 15,5 18,5 0,1645 BFN M2
x 650 - 265 16,0 19,0 0,1706 BFN M2
x 700 - 290 17,0 20,0 0,1857 BFN M2
x 710 - 295 17,0 20,0 0,1888 BFN M2
x 750 - 315 17,5 20,5 0,2009 BFN M3
x 800 15 340 18,5 21,5 0,2160 BF M3
x 900 40 390 20,0 23,0 0,2463 BF M3
x 1000 90 440 21,5 24,5 0,2766 BF M4
400 x 160 140 20 8,0 10,0 0,0329 BFL M1
x 180 - 30 8,5 10,0 0,0401 BFL M1
x 200 - 40 9,0 10,5 0,0473 BFL M1
x 225 - 52,5 9,5 11,0 0,0563 BFL M1
x 250 - 65 10,0 11,5 0,0654 BFL M1
x 280 - 80 10,5 12,0 0,0762 BFL M1
x 300 - 90 10,5 12,5 0,0834 BFL M1
x 315 - 97,5 11,0 12,5 0,0888 BFL M1
x 355 - 117,5 12,0 13,5 0,1033 BFL M1
x 400 - 140 13,0 14,5 0,1195 BFL M1
x 450 - 165 13,5 16,5 0,1263 BFL M1

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A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
400 x 500 - 190 14,5 17,5 0,1437 BFL M2
x 550 - 215 15,5 18,5 0,1611 BFL M2
x 560 - 220 15,5 18,5 0,1646 BFL M2
x 600 - 240 16,0 19,0 0,0685 BFL M2
x 630 - 255 16,5 19,5 0,1785 BFL M2
x 650 - 265 17,0 20,0 0,1890 BFL M2
x 700 - 290 18,0 21,0 0,1959 BFL M2
x 710 - 295 18,0 21,0 0,2133 BFL M2
x 750 - 315 18,5 21,5 0,2168 BFN M2
x 800 15 340 19,5 22,5 0,2307 BFN M3
x 900 90 390 21,0 24,0 0,2481 BFN M3
x 1000 140 440 23,0 26,0 0,3177 BFN M4
450 x 160 - 20 9,0 10,5 0,0374 BFL M1
x 180 - 30 9,0 10,5 0,0456 BFL M1
x 200 - 40 9,5 11,0 0,0538 BFL M1
x 225 - 52,5 10,0 11,5 0,0641 BFL M1
x 250 - 65 10,5 12,0 0,0744 BFL M1
x 280 - 80 11,0 12,5 0,0867 BFL M1
x 300 - 90 11,5 13,0 0,0949 BFL M1
x 315 - 97,5 11,5 13,5 0,1011 BFL M1
x 355 - 117,5 13,0 14,5 0,1175 BFL M1
x 400 - 140 13,5 15,0 0,1360 BFL M1
x 450 - 165 14,5 17,5 0,1445 BFL M1
x 500 - 190 15,5 18,5 0,1644 BFL M2
x 550 - 215 16,5 19,5 0,1843 BFL M2
x 560 - 220 16,5 19,5 0,1883 BFL M2
x 600 - 240 17,0 20,0 0,2042 BFL M2
x 630 - 255 17,5 20,5 0,2161 BFN M2
x 650 - 265 18,0 21,0 0,2241 BFN M2
x 700 - 290 19,0 22,0 0,2440 BFN M2
x 710 - 295 19,0 22,0 0,2480 BFN M2
x 750 15 315 20,5 23,0 0,2639 BFN M2
x 800 40 340 22,5 23,5 0,2838 BFN M2
x 900 90 390 22,5 25,5 0,3236 BFN M3
x 1000 140 440 24,0 27,0 0,3634 BF M3
500 x 160 - 20 9,5 11,0 0,0419 BFL M1
x 180 - 30 9,5 11,5 0,0511 BFL M1
x 200 - 40 10,0 11,5 0,0603 BFL M1
x 225 - 52,5 10,5 12,5 0,0718 BFL M1
x 250 - 65 11,0 13,0 0,0834 BFL M1
x 280 - 80 11,5 13,5 0,0972 BFL M1
x 300 - 90 12,0 13,5 0,1064 BFL M1
x 315 - 97,5 12,5 14,0 0,1133 BFL M1
x 355 - 117,5 13,5 15,0 0,1318 BFL M1
x 400 - 140 14,5 16,0 0,1525 BFL M1
x 450 - 165 15,5 18,5 0,1626 BFL M1
x 500 - 190 16,5 19,5 0,1850 BFL M2
x 550 - 215 17,0 20,0 0,2074 BFL M2
x 560 - 220 17,5 20,5 0,2119 BFL M2
x 600 - 240 18,0 21,0 0,2298 BFN M2
x 630 - 255 19,0 22,0 0,2433 BFN M2
x 650 - 265 19,0 22,0 0,2522 BF M2
x 700 - 290 20,0 23,0 0,2746 BF M2
x 710 - 295 20,5 23,5 0,2791 BF M2

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14 RDT-07-0121
®NORDfire |FDMB
A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
500 x 750 15 315 21,0 24,0 0,2970 BF M3
x 800 40 340 22,0 25,0 0,3194 BF M3
x 900 90 390 24,0 27,0 0,3642 BF M3
x 1000 140 440 25,5 28,5 0,4090 BF M4
550 x 160 - 20 10,0 13,0 0,0364 BFL M1
x 180 - 30 10,5 13,5 0,0463 BFL M1
x 200 - 40 10,5 13,5 0,0563 BFL M1
x 225 - 52,5 11,0 14,0 0,0687 BFL M1
x 250 - 65 12,0 15,0 0,0812 BFL M1
x 280 - 80 12,5 15,5 0,0961 BFL M1
x 300 - 90 13,0 16,0 0,1061 BFL M1
x 315 - 97,5 13,0 17,5 0,1135 BFL M1
x 355 - 117,5 14,5 18,0 0,1335 BFL M1
x 400 - 140 15,0 19,0 0,1559 BFL M1
x 450 - 165 16,0 20,0 0,1808 BFL M1
x 500 - 190 17,0 21,0 0,2057 BFL M2
x 550 - 215 18,0 21,5 0,2306 BFL M2
x 560 - 220 18,5 21,0 0,2356 BFL M2
x 600 - 240 19,0 22,0 0,2555 BFL M2
x 630 - 255 20,0 23,0 0,2704 BFN M2
x 650 - 265 20,0 23,0 0,2804 BFN M2
x 700 - 290 21,5 24,5 0,3053 BFN M2
x 710 - 295 21,5 24,5 0,3103 BFN M2
x 750 15 315 22,0 25,0 0,3302 BFN M2
x 800 40 340 23,0 26,0 0,3551 BFN M2
x 900 90 390 25,0 28,0 0,4049 BFN M3
560 x 160 - 20 10,0 13,0 0,0371 BFL M1
x 180 - 30 9,5 11,5 0,0472 BFL M1
x 200 - 40 10,0 11,5 0,0574 BFL M1
x 225 - 52,5 10,5 12,5 0,0701 BFL M1
x 250 - 65 11,0 13,0 0,0828 BFL M1
x 280 - 80 11,5 13,5 0,0980 BFL M1
x 300 - 90 12,0 13,5 0,1082 BFL M1
x 315 - 97,5 12,5 14,0 0,1158 BFL M1
x 355 - 117,5 13,5 15,0 0,1361 BFL M1
x 400 - 140 14,5 16,0 0,1590 BFL M1
x 450 - 165 15,5 18,5 0,1844 BFL M1
x 500 - 190 16,5 19,5 0,2098 BFL M2
x 550 - 215 17,0 20,0 0,2352 BFL M2
x 560 - 220 17,5 20,5 0,2403 BFL M2
x 600 - 240 18,0 21,0 0,2606 BFN M2
x 630 - 255 19,0 22,0 0,2758 BFN M2
x 650 - 265 19,0 22,0 0,2860 BF M2
x 700 - 290 20,0 23,0 0,3114 BF M2
x 710 - 295 20,5 23,5 0,3165 BF M2
x 750 - 315 22,5 25,5 0,3368 BF M3
x 800 15 340 23,5 26,5 0,3622 BF M3
600 x 160 40 20 10,5 13,5 0,0400 BFL M1
x 180 - 30 11,0 14,0 0,0510 BFL M1
x 200 - 40 11,0 14,0 0,0619 BFL M1
x 225 - 52,5 12,0 15,0 0,0756 BFL M1
x 250 - 65 12,5 15,5 0,0893 BFL M1
x 280 - 80 13,0 16,0 0,1058 BFL M1
x 300 - 90 13,5 16,5 0,1167 BFL M1

Kuvamateriaali on havainnollistava
Pidätämme oikeuden muutoksiin RDT-07-0121 15
®NORDfire |FDMB
A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
600 x 315 - 97,5 14,0 17,0 0,1249 BFL M1
x 355 - 117,5 15,0 18,0 0,1469 BFL M2
x 400 - 140 16,0 18,0 0,1715 BFN M2
x 450 - 165 17,0 20,0 0,1989 BFN M2
x 500 - 190 18,0 21,0 0,2263 BFN M2
x 550 215 19,0 22,0 0,2537 BFN M2
x 560 - 220 19,5 22,5 0,2592 BFN M2
x 600 - 240 20,5 23,5 0,2811 BF M2
x 630 - 255 21,0 24,0 0,2976 BF M2
x 650 - 265 21,5 24,5 0,3085 BF M2
x 700 - 290 22,5 25,5 0,3359 BF M2
x 710 - 295 22,5 25,5 0,3414 BF M2
x 750 15 315 23,5 26,5 0,3633 BF M3
x 800 40 340 24,5 27,5 0,3907 BF M3
630 x 160 - 20 10,5 13,5 0,0422 BFL M1
x 180 - 30 11,0 14,0 0,0538 BFL M1
x 200 - 40 11,5 14,5 0,0653 BFL M1
x 225 - 52,5 12,0 15,0 0,0798 BFL M1
x 250 - 65 13,0 16,0 0,0942 BFL M1
x 280 - 80 13,5 16,5 0,1116 BFL M1
x 300 - 90 14,0 17,0 0,1231 BFL M1
x 315 - 97,5 14,0 17,0 0,1318 BFL M1
x 355 - 117,5 15,5 18,5 0,1549 BFL M2
x 400 - 140 16,5 19,5 0,1809 BFN M2
x 450 - 165 17,5 20,5 0,2098 BFN M2
x 500 - 190 18,5 21,5 0,2387 BFN M2
x 550 - 215 20,0 23,0 0,2676 BFN M2
x 560 - 220 20,0 23,0 0,2734 BFN M2
x 600 - 240 21,0 24,0 0,2965 BF M2
x 630 - 255 21,5 24,5 0,3139 BF M2
x 650 - 265 22,0 25,0 0,3254 BF M2
x 700 - 290 23,5 26,5 0,3543 BF M2
x 710 - 295 23,5 26,5 0,3601 BF M2
x 750 15 315 24,0 27,0 0,3832 BF M3
650 x 160 - 20 11,0 14,0 0,0437 BFL M1
x 180 - 30 11,5 14,5 0,0556 BFL M1
x 200 - 40 12,0 15,0 0,0676 BFL M1
x 225 - 52,5 12,5 15,5 0,0825 BFL M1
x 250 - 65 13,0 16,0 0,0975 BFL M1
x 280 - 80 14,0 17,0 0,1154 BFL M1
x 300 - 90 14,0 17,0 0,1274 BFL M1
x 315 - 97,5 14,5 17,5 0,1363 BFL M2
x 355 - 117,5 16,0 19,0 0,1603 BFL M2
x 400 - 140 17,0 20,0 0,1872 BFN M2
x 450 - 165 18,0 21,0 0,2171 BFN M2
x 500 - 190 19,0 22,0 0,2470 BFN M2
x 550 - 215 20,0 23,0 0,2769 BFN M2
x 560 - 220 20,5 23,5 0,2829 BF M2
x 600 - 240 21,5 24,5 0,3068 BF M2
x 630 - 255 22,0 25,0 0,3247 BF M2
x 650 - 265 22,5 25,5 0,3367 BF M2
x 700 - 290 23,5 26,5 0,3666 BF M2
x 710 - 295 24,0 27,0 0,3726 BF M2

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16 RDT-07-0121
®NORDfire |FDMB
A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
650 x 750 15 315 24,5 27,5 0,3965 BF M2
700 x 160 - 20 11,5 14,5 0,0473 BFL M1
x 180 - 30 12,0 15,0 0,0603 BFL M1
x 200 - 40 12,5 15,5 0,0732 BFL M1
x 225 - 52,5 13,0 16,0 0,0894 BFL M1
x 250 - 65 13,5 16,5 0,1056 BFL M1
x 280 - 80 14,5 17,5 0,1251 BFL M1
x 300 - 90 15,0 18,0 0,1380 BFL M2
x 315 - 97,5 15,5 18,5 0,1477 BFL M2
x 355 - 117,5 16,5 19,5 0,1737 BFN M2
x 400 - 140 17,5 20,5 0,2028 BFN M2
x 450 - 165 19,0 22,0 0,2352 BFN M2
x 500 - 190 20,5 23,5 0,2676 BFN M2
x 550 - 215 22,0 26,5 0,3000 BF M2
x 600 - 220 22,5 27,0 0,3065 BF M2
x 630 - 240 23,5 28,0 0,3324 BF M2
x 650 - 255 24,5 29,0 0,3519 BF M2
x 225 - 265 25,0 29,5 0,3648 BF M2
x 700 - 290 26,5 31,0 0,3972 BF M2
x 710 - 295 27,0 31,5 0,4037 BF M2
710 x 160 - 20 11,5 15,5 0,0480 BFL M1
x 180 - 30 12,0 16,0 0,0612 BFL M1
x 200 - 40 12,5 15,5 0,0744 BFL M1
x 225 - 52,5 13,0 16,0 0,0908 BFL M1
x 250 - 65 14,0 17,0 0,1073 BFL M1
x 280 - 80 14,5 17,5 0,1270 BFL M1
x 300 - 90 15,0 18,0 0,1402 BFL M2
x 315 - 97,5 15,5 18,5 0,1500 BFL M2
x 355 - 117,5 17,0 20,0 0,1763 BFN M2
x 400 - 140 18,0 21,0 0,2060 BFN M2
x 450 - 165 19,0 22,0 0,2389 BFN M2
x 500 - 190 20,0 23,0 0,2718 BFN M2
x 550 - 215 21,5 24,5 0,3047 BF M2
x 560 - 220 21,5 24,5 0,3112 BF M2
x 600 - 240 22,5 25,5 0,3376 BF M2
x 630 - 255 23,5 26,5 0,3573 BF M2
x 650 - 265 23,5 26,5 0,3705 BF M2
x 700 - 290 25,0 28,0 0,4034 BF M2
750 x 160 - 20 12,0 15,0 0,0510 BF M2
x 180 - 30 12,5 15,5 0,0649 BFL M1
x 200 - 40 13,0 16,0 0,0649 BFL M1
x 225 - 52,5 13,5 16,5 0,0963 BFL M1
x 250 - 65 14,5 17,5 0,1138 BFL M1
x 280 - 80 15,0 18,0 0,1347 BFL M2
x 300 - 90 15,5 18,5 0,1487 BFL M2
x 315 - 97,5 16,0 19,0 0,1591 BFN M2
x 355 - 117,5 17,5 20,5 0,1871 BFN M2
x 400 - 140 18,5 21,5 0,2185 BFN M2
x 450 - 165 19,5 22,5 0,2534 BFN M2
x 500 - 190 21,0 24,0 0,2883 BFN M2
x 550 - 215 22,0 25,0 0,3232 BF M2
x 560 - 220 22,5 25,5 0,3302 BF M2
x 600 - 240 23,5 26,5 0,3581 BF M2

Kuvamateriaali on havainnollistava
Pidätämme oikeuden muutoksiin RDT-07-0121 17
®NORDfire |FDMB
A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
750 x 630 15 255 24,0 27,0 0,3790 BF M2
x 650 - 265 24,5 27,5 0,3930 BF M2
800 x 160 - 20 12,5 15,5 0,0546 BFL M1
x 180 - 30 13,0 16,0 0,0696 BFL M1
x 200 - 40 13,5 16,5 0,0845 BFL M1
x 225 - 52,5 14,5 17,5 0,1032 BFL M1
x 250 - 65 15,0 18,0 0,1219 BFL M2
x 280 - 80 16,0 19,0 0,1444 BFL M2
x 300 - 90 16,5 19,5 0,1593 BFL M2
x 315 - 97,5 16,5 19,5 0,1705 BFL M2
x 355 - 117,5 18,0 21,0 0,2005 BFN M2
x 400 - 140 19,5 22,5 0,2341 BFN M2
x 450 - 165 20,5 23,5 0,2715 BFN M2
x 500 - 190 22,0 25,0 0,3089 BFN M2
x 550 - 215 23,0 26,0 0,3463 BF M2
x 560 - 220 23,5 26,5 0,3538 BF M2
x 600 - 240 24,5 27,5 0,3837 BF M2
900 x 160 - 20 13,5 16,5 0,0619 BFL M1
x 180 - 30 14,0 17,0 0,0789 BFL M1
x 200 - 40 15,0 18,0 0,0958 BFL M1
x 225 - 52,5 15,5 18,5 0,1170 BFL M2
A x B [mm] a [mm] c [mm]
weight eect.
area
Sef. [m²]
Actu.
mech.
Mech.
contr.
design
mech [kg] servo [kg]
900 x 250 - 65 16,5 19,5 0,1382 BFL M2
x 280 - 80 17,0 20,0 0,1637 BFL M2
x 300 - 90 17,5 20,5 0,1806 BFL M2
x 315 - 97,5 18,0 21,0 0,1933 BFN M2
x 355 - 117,5 19,5 22,5 0,2273 BFN M2
x 400 - 140 21,0 24,0 0,2654 BFN M2
x 450 - 165 22,5 25,5 0,3078 BFN M2
x 500 - 190 23,5 26,5 0,3502 BF M2
x 550 - 215 25,0 28,0 0,3926 BF M2
1000 x 160 - 20 15,0 18,0 0,0692 BFL M1
x 180 - 30 15,5 18,5 0,0882 BFL M1
x 200 - 40 16,0 19,0 0,1071 BFL M2
x 225 - 52,5 17,0 20,0 0,1308 BFL M2
x 250 - 65 17,5 20,5 0,1545 BFL M2
x 280 - 80 18,5 21,5 0,1830 BFL M2
x 300 - 90 19,0 22,0 0,2019 BFN M2
x 315 - 97,5 19,5 22,5 0,2161 BFN M2
x 355 - 117,5 21,0 24,0 0,2541 BFN M2
x 400 - 140 22,5 25,5 0,2967 BFN M2
x 450 - 165 14,0 27,0 0,3441 BFN M2
x 500 - 190 25,5 28,5 0,3915 BF M2

www.etsnord.fi
18 RDT-07-0121
®NORDfire |FDMB
3.3 Blades overlaps
Tab 3.3.1. Blades overlaps
Blades overlaps Dimension Overlaps
Blades overlaps
Fig.28
Act. mechanism side ”a” Tab. 4.2.1
Side without act. mechanism ”c” Tab. 4.2.1
These values have to respected when projecting related air-conditioning
Fig. 25 Blades overlaps
3.4 For the design .60 (with BKN supply and communication device) add to weight of the
damper with an actuating mechanism (from the Tab 4.2.1.) the weight of BKN…0,5 kg.
3.5 Dampers can be supplied on the customer´s demands in all subdimension of the above
mentioned range.
3.6 Flanges of dampers (Fig. 22, 23).
Fig. 26 Flange of Damper- OPERATORS SIDE Fig. 27 Flange of Damper- INSTALLATIONS SIDE

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Pidätämme oikeuden muutoksiin RDT-07-0121 19
®NORDfire |FDMB
4. Placement and Assembly
4.1 Fire dampers are suitable for installation in arbitrary position in vertical and horizontal passages
of fire separating constructions. Damper assembly procedures must be done so as all load
transfer from the fire separating constructions to the damper body is absolutely excluded.
Back-to-back air-conditioning piping must be hung or supported so as all load transfer from the
back-to-back piping to the damper is absolutely excluded. Installation gap must be filled by
approved material perfectly in all the installation space volume (installation gap).
To provide needed access space to the control device, all other objects must be situated at least
350 mm from the control parts of the damper. Inspection hole must be accessible.
Damper blade has to be inside of construction (labelled with BUILD IN EDGE on the damper
body) after installation. The fire damper can also be installed outside the wall construction. Duct
and the damper part between the wall construction and the damper blade (labelled with BUILD
IN EDGE on the protective covering) must be protected with firefighting insulation.
The distance between the fire damper and the construction (wall, ceiling) must be minimum
75 mm. In case that two or more dampers are supposed to be installed in one fire separating
construction, the distance between the adjacent dampers must be at least 200 mm according to
EN 1366-2 paragraph 13.5.
Exceptions are given in chapter 6.
Fig. 27 The distance between the fire damper and the construction
min. 75
min. 200
min. 75

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20 RDT-07-0121
®NORDfire |FDMB
Fig. 28 Built in edge
“Wall edge sticker” indicates the recommended edge of installation of fire damper into the fire
partition structure (wall). The damper must be installed so that the entire damper blade - in the
closed position - is located inside the fire separating structure (wall) and at the same time the
control mechanism and inspection openings are freely accessible.
4.2 The control mechanism has to be protected (covered) against damage and pollution during
installation process. All fire dampers has to be closed during installation process. The damper
body should not be deformed in the course of bricking in. Once the damper is built in, its blade
should not grind on the damper body during opening or closing.
Fig. 29 Installation opening
4.3 Examples of fire damper installing
The fire damper can be integrated into a solid wall construction made e.g. of normal concrete/
masonry, porous concrete with minimum thickness 100 mm or into solid ceiling construction made
e.g. of normal concrete with minimum thickness 110 mm or porous concrete with minimum
thickness 125 mm.
The fire damper can be integrated into a gypsum wall construction with fire classification EI 120
or EI 90.
The fire damper can also be integrated outside the wall construction. Duct and the damper part
between the wall construction and the damper blade (labelled with BUILD IN EDGE on the
protective covering) must be protected with fire-fighting insulation.
If is damper installed outside a construction it is necessary to use reinforcement VRM.
1- * The recommended dimension of the installation opening is from 25 mm to
2- 50 mm on the both sides (it means from A+50 to A+100 or B+50 to B+100)