System air FDR-3G OF Series User manual

FDR-3G…OF
Overflow Fire Damper FDR-3G

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Table of Contents
Overview 3
Technical Parameters 6
Diagrams 11
Dimensions 13
Ordering Code 14
Installation 16
Electrical parameters 34
Operation manual 46

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Overflow Fire Damper FDR-3G
Description
Overflow fire dampers up to size 630 mm represent passive fire protection, designed with the help of
compartmentalization to prevent the spread of toxic gases, smoke and fire. Standard fire dampers are designed and
certified in accordance with EN 15650 and tested for EIS criteria according to EN 1366–2. Fire damper together with its
installation form an inseparable part of fire resistivity rating. FDR-3G...OF fire dampers are designed for the installations
listed and described in their User Manual. By default, all fire dampers are supplied with an manual mechanism or
actuator mechanism, optionally with smoke detector. FDR-3G...OF is equipped on both ends with Grilles that together
with the duct extensions cover blade overhangs.
Manually Operated Fire Dampers
By default, all manually operated fire dampers are supplied with hand crank, optionally with micro switches. In case of
fire, the fire damper is closes automatically after the melting of the thermal fuse. After the closing of the damper
blade, it is mechanically locked in the closed position and can only be opened manually. The actuating mechanism is
activated when the temperature of the air in the duct reaches 74°C and the damper closes within 10 seconds after the
melting of the fuse.
Actuator- Operated Fire Dampers
By default, all actuator operated fire dampers are supplied with an actuator with micro switches. A fire damper
equipped with a spring return actuator can be closed with command from the building management system, or after
the breaching of the thermoelectric fuse. Actuator operated fire dampers are standardly equipped with a
thermoelectric fuse, that activates the closing of the damper after the reaching or exceeding of the ambient
temperature of 72°C. The actuator power circuit is interrupted and its spring closes the damper blade within 20
seconds.
The activation mechanisms are removable and are interchangeable, for example an actuator operated mechanism
instead of a manually operated mechanism.
Highlights
• Activation types with fitted smoke detector
• Construction with included Grilles
• Tightness class 3C as standard

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• Low pressure drop
• Changeable mechanism
• Inspection opening built-in
• Great variety of installations rated up to EI120S
Activation Types
• H0-OF
Overflow fire damper with an activation mechanism with a cover, manual crank and with a spring return release
mechanism activated by a fusible thermal link set to 74°C (on demand 100°C).
• H2-OF
Overflow fire damper with an activation mechanism H0-OF + open and closed indication with AC 230 V or AC/DC 24 V
contact switches.
• H5-2-OF
Overflow fire damper with an activation mechanism H0-OF + a AC/DC 24 V electromagnetic release mechanism in the
impulse connection (release takes place when the electromagnet is activated) + open and closed indication with AC
230 V or AC/DC 24 V contact switches.
• H6-2-OF
Overflow fire damper with an activation mechanism H0-OF + an AC 230 V electromagnetic release mechanism in the
impulse connection (release takes place when the electromagnet is activated) + open and closed indication with AC
230 V or AC/DC 24 V contact switches.
• B230T-OF or G230T-OF
Overflow fire damper with an activation mechanism with a Belimo or Gruner spring return actuator (AC 230 V) with
electro-thermal fuse 72°C and auxiliary switches.
• B24T-OF or G24T-OF
Overflow fire damper with an activation mechanism with a Belimo or Gruner spring return actuator (AC/DC 24 V) with
electro-thermal fuse 72°C and auxiliary switches.
• BSD230T-OF or GSD230T-OF
Overflow fire damper with Smoke Detector fitted activation mechanism (AC 230 V) 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 Smoke Detector AC/DC 24 V).
• BSD24T-OF or GSD24T-OF
Overflow fire damper with Smoke Detector fitted activation mechanism (AC/DC 24 V) 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 Smoke Detector AC/DC 24 V).
Design
Fire dampers have casings made from galvanized sheet metal. Blades from non-asbestos insulants have a rubber seal
for cold smoke and an intumescent seal, that expands in a fire situation. Overflow fire damper is equipped on both
ends with galvanized sheet metal Grilles mounted on sheetmetal duct extensions.
Material Composition
The product contains galvanized sheet metal, calcium silicate board, fireproof carbon fiberglass, polyurethane foam and
ethylene-propylene rubber. These are processed in accordance with local regulations. The product contains no
hazardous substances, except for the solder in the thermofuse, which contains a milligram of lead.
List of Accessories
Detailed information about accessories for FDR-3G...OF is available in SystemairDESIGN under Fire Damper Accessories.

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• AM-FD: Activation Mechanisms
• CBR-FD: Cover Boards

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Technical Parameters
Durability test
50 cycles/manually operated activation mechanism – with no change of the required properties
10000 + 100 + 100 cycles/actuator operated activation mechanism – with no change of the required properties
Fire testing pressure
Underpressure up to 300 Pa
Safety position
Closed. (In fire scenario the damper closes via spring in actuator or spring in manual mechanism)
Airflow direction
Both directions
Allowed air velocity
Damper can still operate at max. 12 m/s. Air without any mechanical or chemical contamination
Side with fire protection
Depending on installation classification: From both sides (i <-> o)
Repeated opening
Suitable for daily check procedure. It is not possible to operate the device after reaching Activation temperature.
Activation Temperature
Manually operated: 74 °C as standard by means of a spring after the melting of the thermofuse and/or after smoke
sensor detection.
Actuator operated: 72 °C as standard by means of the spring after current interruption in the electro-thermal fuse and/
or after smoke sensor detection.
Operational temperature
Minimum: 0 °C
Maximum: 60 °C for 74 °C and 72 °C thermofuse
Environment suitability
Protected against weather disruptions, with temperature above 0 °C, up to 95% Rha, (3K5 according to EN 60721-3-3)
Open/Closed indication
Manually operated microswitches - Activation types H2-OF up to H6-2-OF
Actuator operated built-in microswitches - Activation types B230T-OF/G230T-OF up to BSD24T-OF/GSD24T-OF
Closing/Opening time
Manually operated < 10 s, actuator operated < 20 s
Inspection possibility
By opening of the inspection lid. For smaller than DN160 after removing of the activation mechanism, or a inspection
opening must be added to the connecting duct. Smoke senzor can be tested with test button or through damper grille
with smoke spray tester.
Maintenance
Not required. Dry cleaning if demanded by law in the country in which the dampers are installed.
Revisions
Determined by law in the country in which the fire dampers are installed but at least every 12 months.
Allowed pressure
1200 Pa

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Blade tightness (STN EN 1751)
Class 3 as standard
Tightness of the housing (STN EN 1751)
Class C as standard
Conformity with EC directives
2006/42/EC Machinery Directive
2014/35/EU Low Voltage Directive
2014/30/EU Electromagnetic Compatibility Directive
Driving actuator types
Belimo: BLF230-T, BLF24-T, BF230-T, BF24-T, BFN230-T, BFN24-T, BFN24-T, BFL230-T, BFL24-T (also with connection
possibilities with acronyms ST, W)
Gruner: 360TA-230-12-S2, 360TA-024-12-S2, 340TA-230D-03-S2, 340TA-024D-03-S2, 340TA-230-05-S2,
340TA-024-05-S2 (also with connection possibilities with acronyms ST, W)
Transport and Storage
Dry indoor conditions with a temperature range of -20 °C to +50 °C

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Legend
P1 Blade
P2 Casing
P3 Manually operated activation mechanism (H0;H...)
P4 Actuator operated activation mechanism (B...;G...)
P5 Inspection lid
P6 Thermoelectric fuse (BAT72;TA-72)
P7 Supply and communication unit (BKN230-24;FS-UFC24-2)
P8 Bendable hanger
P9 Release and test button
P10 Crank
P11 Open position
P12 Closed position
P13 Hexagon bent wrench No.10 (not part of delivery)
P14 Smoke detector (Hekatron ORS 142)

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P15 Grid
P16 Extended ductwork

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Assessed Performance - FDR-3G
19 CE 1396
Systemair Production a.s.
Hlavná 371, 900 43 Kalinkovo, Slovakia
1396-CPR-0162, FDR-3G
(valid for subgroups: …EX, …KS, …OF)
EN 15650 : 2010
Circular fire dampers
Nominal activation conditions/sensitivity - Pass
sensing element load bearing capacity
sensing element response temperature
Response delay (response time) - Pass
closure time
Operational reliability - Pass
motorized cycle = 10.200 cycles
manual cycle = 50 cycles
modulated = 20.200 cycles
Fire resistance:
Resistivity depending on installation method and situation
integrity E
maintenance of the cross section (under E)
mechanical stability (under E)
cross section (under E)
insulation I
smoke leakage S
Durability of response delay - Pass
sensing element response temperature and load bearing capacity
Durability of operational reliability - Pass
open and closing cycle

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Diagrams
FDR-3G-200-H0-OF
Pressure drop & sound power level (A-weighted)
400 600 800 1000 1200 1400 m³/h
200 300 400 l/s
50
100
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-225-H0-OF
Pressure drop & sound power level (A-weighted)
600 800 1000 1200 1400 1600 m³/h
200 300 400 l/s
25
50
75
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-250-H0-OF
Pressure drop & sound power level (A-weighted)
1000 1500 2000m³/h
200 300 400 500 l/s
25
50
75
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-280-H0-OF
Pressure drop & sound power level (A-weighted)
1000 1500 2000 m³/h
200 300 400 500 600 l/s
25
50
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)

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FDR-3G-315-H0-OF
Pressure drop & sound power level (A-weighted)
1000 1500 2000 2500m³/h
200 300 400 500 600 l/s
25
50
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-400-H0-OF
Pressure drop & sound power level (A-weighted)
2000 3000 m³/h
400 600 800 1000 l/s
10
20
30
40
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-450-H0-OF
Pressure drop & sound power level (A-weighted)
2000 3000 4000 5000 m³/h
600 800 1000 1200 1400 l/s
10
20
30
40
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-500-H0-OF
Pressure drop & sound power level (A-weighted)
2000 3000 4000 5000 6000m³/h
600 800 1000 1200 1400 1600 l/s
10
20
30
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-560-H0-OF
Pressure drop & sound power level (A-weighted)
3000 4000 5000 6000 m³/h
800 1000 1200 1400 1600 1800 l/s
10
20
30
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
FDR-3G-630-H0-OF
Pressure drop & sound power level (A-weighted)
3000 4000 5000 6000 7000 m³/h
1000 1500 2000 l/s
10
20
Pa
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)

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Dimensions
Free area
Dimensions
Note: 3) Inclusive bearing
Overhangs
Weights

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Ordering Code
DN - Nominal Dimension, øDN
from 200 mm up to 630 mm
B - Type of Activation (H0-OF up to GSD24T-OF)
H0-OF (Manual crank, no switches)
H2-OF (Manual crank, 2 switches 230V AC or 24V AC/DC)
H5-2-OF (Manual crank, 24V AC/DC electromagnet, 2 switches 230V AC or 24V AC/DC)
H6-2-OF (Manual crank, 230V AC electromagnet, 2 switches 230V AC or 24V AC/DC)
B230T-OF (230V AC Belimo Actuator)
G230T-OF (230V AC Gruner Actuator)
B24T-OF (24V AC/DC Belimo Actuator)
G24T-OF (24V AC/DC Gruner Actuator)
BSD230T-OF (230 V AC Supply unit & Smoke detector 24 V AC/DC & 24 V AC/DC Belimo Actuator)
GSD230T-OF (230 V AC Supply unit & Smoke detector 24 V AC/DC & 24 V AC/DC Gruner Actuator)
BSD24T-OF (Smoke detector 24 V AC/DC & 24 V AC/DC Belimo Actuator)
GSD24T-OF (Smoke detector 24 V AC/DC & 24 V AC/DC Gruner Actuator)
Example of the Circular Overflow Fire Dampers Ordering Code
FDR-3G-630-H2-OF
Circular overflow fire damper, nominal diameter 630 mm, manually operated activation mechanism with open and
closed position indication with switches AC 230 V or AC/DC 24 V.
Note: The fire resistivity depends on the installation method.
Inspection opening positions (Removable mechanism is available for all sizes):
ø 200 ≤ DN ≤ ø225
Standardardly in position: L; Additional inspection opening cannot be added.

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ø 250 ≤ DN ≤ ø630
Standardardly in position: B; On demand in position: L, T.

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Installation Methods
Notes:
ve - Vertical (wall)
ho - Horizontal (floor/ceiling)
Installation, Maintenance & Operation
Some damper parts may have sharp edges – therefore to protect yourself from harm, please use gloves during damper
installation and manipulation. In order to prevent electric shock, fire or any other damage which could result from
incorrect damper usage and operation, it is important to:
ensure that installation is performed by a trained person.
follow the written and depicted instructions provided within User Manual closely.
perform damper inspection in accordance with User Manual.
check the damper’s functionality as per the chapter “Fire Damper Functionality Check” before you install the fire
damper. This procedure prevents the installation of a damper that has been damaged during transportation or handling.
Installation, Maintenance & Operation
Some damper parts may have sharp edges – therefore to protect yourself from harm, please use gloves during damper
installation and manipulation. In order to prevent electric shock, fire or any other damage which could result from
incorrect damper usage and operation, it is important to:
ensure that installation is performed by a trained person.
follow the written and depicted instructions provided within User Manual closely.
perform damper inspection in accordance with User Manual.
check the damper’s functionality as per the chapter “Fire Damper Functionality Check” before you install the fire
damper. This procedure prevents the installation of a damper that has been damaged during transportation or handling.
Information about installation, maintenance and operation is available in the “UserManual_FDR-3G” document or more
can be found at SystemairDESIGN.

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Installation rules
• The damper must not support any part of the surrounding construction or wall which could cause damage and
consequent damper failure.
• The damper driving mechanism can be placed on either side of the wall, however it needs to be placed so as to
ensure easy access during inspection. When the damper is fitted with smoke sensor, the damper must be rotated
so that the sensor is on highest posisition.
• According to the standard EN 1366-2, the distance between the fire damper bodies must be at least 200 mm. This
condition does not apply for tested distances. Therefore Wet and Soft installations are approved for smaller
distances under condition that the resulted resistivity is reduced to EI90S.
• The distance between the wall/ceiling and the fire damper must be at least 75 mm. This condition does not apply
for tested distances. Therefore Wet and Soft installations are approved for smaller distances under condition that
the resulted resistivity is reduced to EI90S.
• The fire damper must be installed into a fire partition structure in such a way that the damper blade in its closed
position is located inside this structure. A bendable hinge is provided on the damper body which represents a plane
where supporting construction begins.
• For each resistivity the minimum thickness of a its supporting construction cannot be decreased as per EN 1366-2
at least 200 mm from the installation opening.
• The gap in the installation opening between the fire damper and the wall/ceiling can be increased by up to 50% of
the gap area, or decreased to the smallest amount possible that still provides sufficient space for the installation of
the filling.
IN ACCORDANCE WITH EN 15650, EACH FIRE DAMPER MUST BE INSTALLED ACCORDING TO THE INSTALLATION
INSTRUCTIONS PROVIDED BY THE MANUFACTURER!

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Installation 1 - Wet
Using Plaster/Mortar/Concrete Filling
The supporting construction opening must be prepared as depicted. Opening surfaces must be even and cleaned off.
The flexible wall opening must be reinforced as per the standards for plasterboard walls. The opening dimensions are
driven by the nominal dimensions of the damper with added clearance. For circular dampers prepare the opening of
diameter D1 or width by height of D2.
Insert the closed damper into the middle of the opening so that the damper blade is in the wall. Use the bendable
hanger (2; or hangers) to secure the damper against the wall using a suitable screw (F1; recommended screw diameter
5,5; e.g. DIN7981).
Fill in the area between the wall and the damper with plaster or mortar or concrete filling (2), while paying attention to
prevent the fouling of the damper’s functional parts, which could limit its correct functionality. The best way is to cover
the functional parts during installation. The seepage of the filling material can be prevented by using boards. However,
these are not required for wet installation.
First let the plaster or mortar or concrete filling harden and then perform the next steps!
If needed, uncover and clean the damper after installation.
Check the damper’s functionality
Installation - Standard Distances
According to the standard EN 1366-2, the minimum distance from the wall or ceiling to the damper body is 75 mm. For
multiple crossings through a fire resistive wall the minimum distance between two damper bodies is 200 mm. This
applies for distances between the damper and a nearby foreign object crossing the fire resistive wall.
Installation - Smaller Distances - Maximum resistivity reduced to EI90S
The distance between individual fire dampers can be reduced to 60 mm, measured from surface to surface of the
housing and the distance between the surface of the damper installed in the duct and the adjacent supporting
construction (wall/floor) can be reduced to 40 mm, provided that the fire resistance classification will be reduced as
follows: EI90 (ve i <-> o) S.
Installation in a Wall thinner than tested
Installation in a thinner wall is allowed under the condition that an additional layer/layers of fire protective board are
fixed to the surface of the wall in order to achieve the same length of damper penetration seal as was tested. The
minimum width of added boards around the damper is 200 mm. In addition, the alternative thinner wall should be
classified in accordance with EN 13501-2:2007 + A1: 2009 for fire resistance required for product application. For a
protruding wall, the additional layers must be fixed on the steel supporting construction of the wall.

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