System air FDR-3G EX Series User manual

FDR-3G…EX
Atex Fire Damper FDR-3G
Handbook

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Table of Contents
Overview .........................................................3
Technical Parameters ..................................................6
Diagrams .........................................................11
Dimensions & Weights ..................................................13
Ordering Code ......................................................15
Installation ........................................................16
Electrical Parameters ...................................................42
Operation Manual ....................................................48

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Description
Atex fire dampers 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 dampers together with their installation form an inseparable
part of a fire resistivity rating. This Atex version is modified by the 2014/34/EU directive, which sets out the technical
requirements for equipment and protective systems intended for use in potentially explosive atmospheres. Atex fire
dampers are designed for group II category 2 G and 2 D against the ignition of gas explosion group IIB and dust
explosion group IIIB, temperature class T85 °C...T100 °C for Db or temperature class T6...T5 for Gb. Equipment
Protection Level Gb and Db according to EN ISO 80079-36.2016.
Highlights
• Lightweight construction
• Tightness class 3C as standard
• Suitable for Gas and Dust explosive atmosphere

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• Inspection opening built-in
• Great variety of installations rated up to EI120S
Activation Types
Manually Operated Fire Dampers
By default, all manually operated fire dampers are supplied with a hand crank, optionally with microswitches. 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.
•H0-EX - Zone: 1, 2 (Gb), 21, 22 (Db)
Atex fire damper with an activation mechanism with a conductive plastic 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-EX - Zone: 1, 2 (Gb, limit T6), 21, 22 (Db, limit T85°C)
Atex fire damper with an activation mechanism H0-EX + open and closed indication with AC 230 V or AC/DC 24 V
contact atex rated switches. Atex temperature class reduced to T85°C in Db and T6 in Gb.
Actuator Operated Fire Dampers
By default, all actuator operated fire dampers are supplied with an actuator with microswitches. 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, which 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.
•SET-EX - Zone: 1, 2 (Gb), 21, 22 (Db)
Atex fire damper with an activation mechanism with atex rated Schischek ExMax spring return actuator (with universal
supply unit 24...240 V AC/DC) with electro-thermal fuse 72°C and auxiliary switches.
•SRT-EX - Zone: only 2 (Gc), 22 (Dc)
Atex fire damper with an activation mechanism with atex rated Schischek RedMax spring return actuator (with
universal supply unit 24...240 V AC/DC) with electro-thermal fuse 72°C and auxiliary switches.
•SET-B-EX - Zone: 1, 2 (Gb), 21, 22 (Db)
Atex fire damper with ExBox-BF terminal box and an activation mechanism with atex rated Schischek ExMax spring
return actuator (with universal supply unit 24...240 V AC/DC) with electro-thermal fuse 72°C and auxiliary switches.
•SRT-B-EX - Zone: only 2 (Gc), 22 (Dc)
Atex fire damper with ExBox-BF terminal box and an activation mechanism with atex rated Schischek RedMax spring
return actuator (with universal supply unit 24...240 V AC/DC) with electro-thermal fuse 72°C and auxiliary switches.
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, which expands in a fire situation. All moving parts are conductively connected
to eliminate electric charges.
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...EX is available in SystemairDESIGN under Fire Damper Accessories.

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• AM-FD: Activation Mechanisms
• CBR-FD: Cover Boards
• IPOR-FD: Insulation Cover Plates
Specific Conditions of Use:
• The fire damper is suitable for the use with the ambient temperature Ta = 0°C/+60°C. In case of additional electrical
equipment (limit switch, temperature sensor, servo-drive) the temperature range is reduced according to the range
of the used device.
• The electrical devices installed together with the damper must have the type of protection corresponding with the
defined zone.
• The temperature class of the equipment is dependent on the temperature of the flowing medium according to the
table:
The maximum temperature of flowing medium 60°C:
• Initialization temperature of heat fuses: ≥ 72°C
• Temperature class: T6
The maximum temperature of flowing medium 85°C:
• Initialization temperature of heat fuses: ≥ 100°C
• Temperature class: T5

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Technical Parameters
CE certificate number 1396 - CPR - 0162
ATEX certificate number FTZÚ 20 ATEX 0035X
Explosion Proof Class {EX} II 2 D Ex h IIIB T85°C...T100°C Db, {EX} II 2 G Ex h IIB T6...T5 Gb. For
activation type H2-EX the temperature class is reduced to T85°C Db and T6 Gb
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 a fire scenario the damper closes via a spring in the actuator or a spring in the 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 the activation temperature.
Activation Temperature Temperature of the fire damper closing
• Manually operated: 74 °C by means of a spring after the melting of the thermofuse
• Actuator operated: 72 °C by means of the spring after current interruption in the electro-thermal fuse
Operational temperature Permissible temperature in the duct and its surroundings
• Minimum: 0 °C, for all types of mechanism
• Maximum: 60 °C for 74 °C and 72 °C thermofuse (All mechanism types); 85 °C for 100 °C thermofuse (mechanism
type H0)
Environment suitability
Protected against weather disruptions, with temperature above 0 °C (3K5 according to EN 60721-3-3)
Open/Closed indication
• Manually operated microswitches - Activation types H0-EX and H2-EX
• Actuator operated built-in microswitches - Activation types SET-EX and SRT-EX
Closing/Opening time
Manually operated < 10 s, actuator operated < 20 s
Inspection possibility
By opening of the inspection lid. For sizes smaller than DN160, , inspection can happen either after the activation
mechanism is removed, or an inspection opening must be added to the connecting duct.
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
Schisckek ExMax
Schisckek RedMax
Transport and Storage
Dry indoor conditions with a temperature range of -20 °C to +50 °C

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Product parts
P3P6 P3P6P1 P2 P8P5P1 P2 P8 P5
FDR-3G...EX
DN≤630
P4 P14P4 P14
FDR-3G...EX
DN>630

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Legend
P1 Blade
P2 Casing
P3 Manually operated activation mechanism (H0-EX; H2-EX)
P4 Actuator operated activation mechanism (SET-EX; SRT-EX)
P5 Inspection lid
P6 Thermoelectric fuse (ExPro-TT-72, Schischek)
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 Actuator operated activation mechanism (SET-B-EX; SRT-B-EX)

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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
The pressure drop and A-weighted total discharged sound power level depend on the nominal diameter of the damper
and air flow volume at different duct pressures. The type of activation does not influences the airflow parameter,
therefore only one activation type is shown in the diagrams.
FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
100 200 500
m³/h
30 50 100 l/s
10
50
100
Pa
Size: 100
Size: 125
Size: 140
25
30
35
40
45
50
25
30
35
40
45
50
55
25
30
35
40
45
50
FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
200 300 500 m³/h
50 100 200 l/s
10
50
100
Pa
Size: 150 Size: 160
Size: 180
25
30
35
40
45
50
25
30
35
40
45
50
55
25
30
35
40
45
50
FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
500 800 1000 m³/h
200 300 500
l/s
5
10
20
Pa
Size: 200
Size: 225
Size: 250
25
30
35
40
45
50
25
30
35
40
45
50
25
30
35
40
45
50
FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
800 1000 2000 m³/h
200 300 500 l/s
5
10
20
Pa
Size: 280
Size: 315
25
30
35
40
45
50
25
30
35
40
45
50

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FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
2000 3000 5000 m³/h
500 800 1000 l/s
2
5
10
20
Pa
Size: 400
Size: 450
Size: 500
25
30
35
40
45
50
25
30
35
40
45
50
25
30
35
40
45
50
FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
3000 5000 8000 m³/h
800 1000 2000 l/s
1
5
10
Pa
Size: 560
Size: 630
Size: 710
25
30
35
40
45
50
25
30
35
40
45
50
25
30
35
40
45
50
FDR-3G-...-H0-EX
Pressure drop & A-weighted sound power level in dB(A)
5000 10000 20000 m³/h
2000 3000 5000 l/s
0.5
1
5
Pa
Size: 800
Size: 900
Size: 1000
25
30
35
40
45
50
25
30
35
40
45
50
25
30
35
40
45
50

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Dimensions
DN 100 up to DN 630
Free area
DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
AV(m2)0,003 0,007 0,009 0,011 0,013 0,018 0,023 0,031 0,039 0,050 0,065 0,085 0,110 0,138 0,173 0,220 0,283
Dimensions
45 45
450
175
R2
DN-2
DN+30 3)
≤85 (H0-EX; H2-EX)
5,7
≤130 (SET-EX; SRT-EX)
FDR-3G...EX
DN≤630
≤185 (SET-B-EX; SRT-B-EX)
95
(mm)
Note: 3) Inclusive bearing
Overhangs
DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
R1(mm) -300 -287,5 -280 -275 -270 -260 -250 -237,5 -225 -210 -192,5-172,5 -150 -125 -100 -70 -35
R2(mm) -67 -54,5 -47 -42 -37 -27 -17 -4,5 8 23 40,5 60,5 83 108 133 163 198
Weights
m
(kg ±5%)
DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
H0-EX, H2-EX 3,3 3,4 3,6 3,7 3,8 4,2 4,4 4,8 5,3 5,8 6,4 7,3 8,3 11,1 12,3 14,6 17,0
SET-EX, SRT-EX 6,8 6,9 7,1 7,2 7,3 7,7 7,9 8,3 8,8 9,3 9,9 10,8 11,8 14,6 15,8 18,1 20,5

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DN 710 up to DN 1000
Free area
DN (mm)
710 800 900 1000
AV(m2)0,357 0,459 0,587 0,731
Dimensions
R2
45
R1
500
45
215
DN-2
≤85 (H0-EX; H2-EX)
DN+30 3)
100
FDR-3G...EX
DN>630
≤130 (SET-EX; SRT-EX)
≤185 (SET-B-EX; SRT-B-EX)
(mm)
Note: 3) Inclusive bearing
Overhangs
DN (mm)
710 800 900 1000
R1(mm) 3 48 98 148
R2(mm) 191 236 286 336
Weights
m
(kg ±5%)
DN (mm)
710 800 900 1000
H0-EX, H2-EX 33,5 39,4 46,5 54,2
SET-EX, SRT-EX 37,0 42,9 50,0 57,7

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Ordering Code
DN - Dimension, øDN
100 mm up to 1000 mm
B - Type of Activation (H0-EX up to SRT-EX)
H0-EX (Manual crank, no switches)
H2-EX (Manual crank, 2 switches 230V AC or 24V AC/DC)
SET-EX (24...240 V AC/DC, Schischek ExMax)
SRT-EX (24...240 V AC/DC, Schischek RedMax)
SET-B-EX (24...240 V AC/DC, Schischek ExMax + ExBox-BF)
SRT-B-EX (24...240 V AC/DC, Schischek RedMax + ExBox-BF)
Example of the Circular Fire Dampers Ordering Code
FDR-3G-1000-H2-EX
Atex circular fire damper, nominal diameter 1000 mm, manually operated activation mechanism with 2 switches AC
230 V or AC/DC 24 V, indicating the damper’s closed and open position.
Note: The fire resistivity depends on the installation method.
Inspection opening positions (Removable mechanism is available for all sizes):
DN ≤ ø 150
No inspection opening. Inspection possible through removable mechanism or additional inspection opening must be
added to the conecting duct.
ø 160 ≤ DN ≤ ø225
Standardly in position: L; Additional inspection opening cannot be added.
ø 250 ≤ DN ≤ ø1000
Standardly in position: B; On demand in position: L, T.

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Installation Methods
1 Wet
FDR-3G...EX
DN100 ... DN1000
EI 60 (ve ho i ↔ o) S
a) b) c)
360°
EI 90 (ve ho i ↔ o) S
EI 120 (vehoi ↔ o) S
2 Dry
FDR-3G...EX
DN100 ... DN630
EI 60 (ve ho i ↔ o) S a) b) c)
360°
EI 90 (ve ho i ↔ o) S
FDR-3G...EX
> DN630 ... DN1000
EI 60 (ve - i ↔ o) S a) b)
360°
EI 90 (ve - i ↔ o) S
3 Soft
FDR-3G...EX
DN100 ... DN630
EI 60 (ve ho i ↔ o) S a) b) c)
360°
EI 90 (ve ho i ↔ o) S
3H Hilti
FDR-3G...EX
DN100 ... DN630
EI 60 (ve - i ↔ o) S a) b)
360°
EI 90 (ve - i ↔ o) S
5.1 On, Out
FDR-3G...EX
DN100 ... DN400
EI 60 (ve - i ↔ o) S a) b)
EI 90 (ve - i ↔ o) S
5.2 On, Out
FDR-3G...EX
DN100 ... DN500 EI 60 (ve - i ↔ o) S
a) b)
Legend:
1. Wet - Wet Installation, Using Plaster/Mortar/Concrete Filling
2. Dry - Dry Installation, using cover boards and mineral wool filing
3. Soft - Soft Installation, using mineral wool filing
3H. Hilti - Filling made only from Hilti foam
5.1. On & Out - ON & OUT of the wall installation rated for EI90S, Using 2 layers of Mineral Wool
5.2. On & Out - ON & OUT of the wall installation rated for EI60S, Using 1 layer of Mineral Wool

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a) - Flexible (plasterboard) wall
b) - Concrete/masonry/cellular concrete (rigid) wall
c) - Concrete/cellular concrete (rigid) floor/ceiling
ve - Vertical wall
ho - Horizontal floor/ceiling
Circular fire dampers are certified according to EN 15650, tested according to EN 1366-2, classified according to
EN13501 and explosion-proof certified according to Directive 2014/34/EU and EN ISO 80079-36.2016, part 1 - the
reached classes are: II 2 D Ex h IIIB T85°C...T100°C Db, II 2 G Ex h IIB T6...T5 Gb. For activation type H2-EX the
temperature class is reduced to T85°C Db and T6 Gb
IMPORTANT: The device must be installed in such a way that forming of creeping discharges is prevented (static
surface charging).
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:
1. ensure that the installation is performed by a trained person.
2. closely follow the written and depicted instructions provided within the Handbook.
3. perform a damper inspection in accordance with the Handbook.
4. 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 “Handbook_FDR-3G” document, and
more information can be found at SystemairDESIGN.
Installation rules
IMPORTANT: The device must be installed in such a way, that forming of creeping discharges is prevented (static
surface charging).
• The duct connected to the fire damper must be supported or hung in such a way that the damper does not carry its
weight. The damper must not support any part of the surrounding construction or wall, which could cause damage
and resulting damper failure. It is recommended to connect the damper to a dilatation compensator on either end of
the damper.
• 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.
• 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 the condition that the resulting 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 the condition that the
resulting 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 the supporting construction begins. This condition does not apply to On & Out installations.
• For each resistivity the minimum thickness of 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
1. 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 an opening of diameter D1.
2. 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).
3. For a damper diameter greater than 800 mm, it is recommended to use a duct support inside the damper to avoid
any damage or bend to the damper housing from the weight of the filling.
4. 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!
5. After the filling hardens, remove the duct support from inside of the damper.
6. If needed, uncover and clean the damper after installation.
7. 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 2 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 the fire resistance required for product applications. For
a protruding wall, the additional layers must be fixed on the steel supporting construction of the wall.
1 Wet
FDR-3G...EX
DN100 ... DN1000
EI 60 (ve ho i ↔ o) S
a) b) c)
360°
EI 90 (ve ho i ↔ o) S
EI 120 (vehoi ↔ o) S

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