Trox Technik FKA2-EU User manual

Fire damper
Type FKA2-EU
Installation and operating manual
Read the instructions prior to performing any task!
according to Declaration of Performance
DoP / FKA2-EU / DE / 001
GB/en

A00000076523, 1, GB/en
Translation of the original
© 2019
TROX GmbH
Heinrich-Trox-Platz
47504 Neukirchen-Vluyn
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: http://www.troxtechnik.com
09/2019
Fire damper Type FKA2-EU
2

General information
About this manual
This operating and installation manual enables oper-
ating or service personnel to correctly install the TROX
product described below and to use it safely and effi-
ciently.
This operating and installation manual is intended for
use by fitting and installation companies, in-house tech-
nicians, technical staff, instructed persons, and qualified
electricians or air conditioning technicians.
It is essential that these individuals read and fully under-
stand this manual before starting any work. The basic
prerequisite for safe working is to comply with the safety
notes and all instructions in this manual.
The local regulations for health and safety at work and
general safety regulations also apply.
This manual must be given to the system owner when
handing over the system. The system owner must
include the manual with the system documentation. The
manual must be kept in a place that is accessible at all
times.
Illustrations in this manual are mainly for information
and may differ from the actual design.
Copyright
This document, including all illustrations, is protected by
copyright and pertains only to the corresponding
product.
Any use without our consent may be an infringement of
copyright, and the violator will be held liable for any
damage.
This applies in particular to:
Publishing content
Copying content
Translating content
Microcopying content
Saving content to electronic systems and editing it
TROX Technical Service
To ensure that your request is processed as quickly as
possible, please keep the following information ready:
Product name
TROX order number
Delivery date
Brief description of the fault
Online www.troxtechnik.com
Phone [phone]
Limitation of liability
The information in this manual has been compiled with
reference to the applicable standards and guidelines,
the state of the art, and our expertise and experience of
many years.
The manufacturer does not accept any liability for dam-
ages resulting from:
Non-compliance with this manual
Incorrect use
Operation or handling by untrained individuals
Unauthorised modifications
Technical changes
Use of non-approved replacement parts
The actual scope of delivery may differ from the infor-
mation in this manual for bespoke constructions, addi-
tional order options or as a result of recent technical
changes.
The obligations agreed in the order, the general terms
and conditions, the manufacturer's terms of delivery,
and the legal regulations in effect at the time the con-
tract is signed shall apply.
We reserve the right to make technical changes.
Defects liability
For details regarding defects liability please refer to
Section VI, Warranty Claims, of the Delivery and Pay-
ment Terms of TROX GmbH.
The Delivery and Payment Terms of TROX GmbH are
available at www.troxtechnik.com.
General information
Fire damper Type FKA2-EU 3

Safety notes
Symbols are used in this manual to alert readers to
areas of potential hazard. Signal words express the
degree of the hazard.
Comply with all safety instructions and proceed carefully
to avoid accidents, injuries and damage to property.
DANGER!
Imminently hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING!
Potentially hazardous situation which, if not avoided,
may result in death or serious injury.
CAUTION!
Potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
NOTICE!
Potentially hazardous situation which, if not avoided,
may result in property damage.
ENVIRONMENT!
Environmental pollution hazard.
Tips and recommendations
Useful tips and recommendations as well as informa-
tion for efficient and fault-free operation.
Safety notes as part of instructions
Safety notes may refer to individual instructions. In this
case, safety notes will be included in the instructions
and hence facilitate following the instructions. The
above listed signal words will be used.
Example:
1. Untighten the screw.
2.
CAUTION!
Danger of finger entrapment when closing
the lid.
Be careful when closing the lid.
3. Tighten the screw.
Specific safety notes
The following symbols are used in safety notes to alert
you to specific hazards:
Warning signs Type of danger
Warning – danger zone.
General information
Fire damper Type FKA2-EU4

1 Safety.................................................................. 6
1.1 General safety notes................................... 6
1.2 Correct use.................................................. 6
1.3 Qualified staff............................................... 6
2 Technical data.................................................... 7
2.1 General data................................................ 7
2.2 FKA2-EU with fusible link............................ 8
2.3 FKA2-EU with spring return actuator......... 11
2.4 FKA2-EU with spring return actuator and
duct smoke detector.................................. 18
3 Transport and storage..................................... 19
4 Parts and function........................................... 20
4.1 FKA2-EU with fusible link.......................... 20
4.2 FKA2-EU with spring return actuator......... 20
4.3 FKA2-EU with spring return actuator and
duct smoke detector.................................. 21
5 Installation........................................................ 22
5.1 Installation situations................................. 22
5.2 Safety notes regarding installation............ 24
5.3 General installation information................. 24
5.3.1 Installation kit supply package and
assembly ES.......................................... 33
5.4 Solid walls................................................. 35
5.4.1 Mortar-based installation........................ 36
5.4.2 Mortar-based installation with partial
mortaring................................................ 38
5.4.3 Dry mortarless installation with installa-
tion kit ES............................................... 39
5.4.4 Dry mortarless installation with fire batt.. 43
5.5 Solid ceiling slabs...................................... 44
5.5.1 Mortar-based installation into solid
ceiling slabs............................................ 45
5.5.2 Mortar-based installation into a concrete
base........................................................ 48
5.5.3 Mortar-based installation in conjunction
with wooden beam ceilings.................... 49
5.5.4 Mortar-based installation in conjunction
with solid wood ceilings.......................... 50
5.5.5 Dry mortarless installation with installa-
tion kit ES............................................... 51
5.6 Lightweight partition walls and compart-
ment walls with metal support structure.... 53
5.6.1 Mortar-based installation........................ 57
5.6.2 Dry mortarless installation with installa-
tion kit ES............................................... 62
5.6.3 Dry mortarless installation with installa-
tion kit ES remote from a lightweight
partition wall........................................... 66
5.6.4 Dry mortarless installation with fire batt.. 68
5.7 Lightweight partition walls with timber sup-
port structure............................................. 71
5.7.1 Mortar-based installation........................ 73
5.7.2 Dry mortarless installation with installa-
tion kit ES............................................... 76
5.7.3 Dry mortarless installation with fire batt.. 78
5.8 Solid wood walls........................................ 80
5.8.1 Mortar-based installation........................ 81
5.8.2 Dry mortarless installation with installa-
tion kit ES............................................... 82
5.8.3 Dry mortarless installation with fire batt.. 83
5.9 Shaft walls with metal support structure.... 84
5.9.1 Mortar-based installation........................ 86
5.9.2 Dry mortarless installation with installa-
tion kit ES............................................... 89
5.10 Fixing the fire damper.............................. 90
5.10.1 General................................................. 90
5.10.2 Suspending fire dampers installed
remote from solid walls and ceiling
slabs..................................................... 91
5.10.3 Fixing the damper when a fire batt is
used...................................................... 92
6 Accessories..................................................... 93
7 Electrical connection...................................... 96
7.1 Limit switches (fire dampers with fusible
link)............................................................ 96
7.2 Spring return actuator................................ 96
7.3 Spring return actuator and duct smoke
detector RM-O-3-D.................................... 96
8 Functional test................................................. 97
8.1 Fire damper with fusible link...................... 97
8.1.1 Fusible link – size 1................................ 97
8.1.2 Fusible link – size 2 and 3...................... 98
8.2 Fire damper with spring return actuator.. 101
8.2.1 Spring return actuator – BFL... / BFN... 101
8.2.2 Spring return actuator – BF.................. 103
8.3 Functional test with automatic control
unit........................................................... 105
9 Commissioning.............................................. 106
10 Maintenance................................................... 107
10.1 General.................................................. 107
10.2 Replacing the fusible link....................... 108
10.2.1 Fusible link – size 1............................ 108
10.2.2 Fusible link – size 2 and 3.................. 109
10.3 Inspection, maintenance and repair
measures............................................... 110
11 Decommissioning, removal and disposal... 112
12 Legend............................................................ 113
13 Index............................................................... 117
Table of contents
Fire damper Type FKA2-EU 5

1 Safety
1.1 General safety notes
Sharp edges, sharp corners and thin sheet metal
parts
CAUTION!
Danger of injury from sharp edges, sharp cor-
ners and thin sheet metal parts!
Sharp edges, sharp corners and thin sheet metal
parts may cause cuts or grazes.
– Be careful when carrying out any work.
–Wear protective gloves, safety shoes and a hard
hat.
Electrical voltage
DANGER!
Danger of electric shock! Do not touch any live com-
ponents! Electrical equipment carries a dangerous
electrical voltage.
– Only skilled qualified electricians are allowed to
work on the electrical system.
–Switch off the power supply before working on
any electrical equipment.
1.2 Correct use
The fire damper is used as an automatic shut-off
device to prevent fire and smoke from spreading
through ducting.
The fire damper is suitable for supply and extract air
in HVAC systems.
Operation of the fire dampers is allowed only in
compliance with installation regulations and the
technical data in this installation and operating
manual.
Modifying the fire damper or using replacement
parts that have not been approved by TROX is not
permitted.
Additional provision:
For use
in extract air systems in commercial kitchens
as an air transfer damper,
the following regulations must be observed.
Incorrect use
WARNING!
Danger due to incorrect use!
Incorrect use of the fire damper can lead to dan-
gerous situations.
Never use the fire damper
–in areas with potentially explosive atmospheres
– as a smoke control damper
– outdoors without sufficient protection against the
effects of weather
– in atmospheres where chemical reactions,
whether planned or unplanned, may cause
damage to the fire damper or lead to corrosion
1.3 Qualified staff
WARNING!
Danger of injury due to insufficiently qualified
individuals!
Incorrect use may cause considerable injury or
damage to property.
– Only specialist personnel must carry out work.
Personnel:
Skilled qualified electrician
Specialist personnel
Skilled qualified electrician
Skilled qualified electricians are individuals who have
sufficient professional or technical training, knowledge
and actual experience to enable them to work on elec-
trical systems, understand any potential hazards related
to the work under consideration, and recognise and
avoid any risks involved.
Specialist personnel
Specialist personnel are individuals who have sufficient
professional or technical training, knowledge and actual
experience to enable them to carry out their assigned
duties, understand any potential hazards related to the
work under consideration, and recognise and avoid any
risks involved.
Safety
Qualified staff
Fire damper Type FKA2-EU6

2 Technical data
2.1 General data
Nominal sizes B × H 200 × 100 – 1500 × 800 mm *
Casing lengths L 305 and 500 mm
Volume flow rate range Up to 14400 l/s or 51840 m³/h
Differential pressure range Up to 2000 Pa
Temperature range 1, 3 -20 °C – 50 °C
Release temperature 72 °C or 95 °C (for warm air ventilation systems)
Upstream velocity 2≤ 8 m/s with fusible link,
≤ 12 m/s with spring return actuator
Closed blade air leakage EN 1751, Class 2
Casing air leakage EN 1751, Class C; (B + H) ≤ 700, Class B
EC conformity Construction Products Regulation (EU) No. 305/2011
EN 15650 – Ventilation for buildings – Fire dampers
EN 13501-3 – Classification: Fire resistant ducts and fire
dampers
EN 1366-2 – Fire resistance tests for installations: Fire
dampers
EN 1751 Ventilation for buildings – Air terminal devices
Declaration of performance DoP / FKA2-EU / DE / 001
1) Temperatures may differ for units with attachments. Details for other applications are available on request.
2) Data applies to uniform upstream and downstream conditions for the fire damper.
3) Condensation and the intake of humid fresh air have to be avoided as otherwise operation will be impaired or not possible.
* Damper blade with lip seal for sizes 1 and 2, damper blade with travel stop seal for size 3, see table
Ä 9.
Rating plate
Fig. 1: Rating plate (example)
1 CE mark
2 Manufacturer's address
3 Number of the European standard and year of its
publication
4 Notified body
5 The last two digits of the year in which the CE
marking was affixed
6 Year of manufacture
7 No. of the declaration of performance
8 Website from which the DoP can be downloaded
9 Regulated characteristics; the fire resistance class
depends on the application and may vary
10 Type
Technical data
General data
Fire damper Type FKA2-EU 7

2.2 FKA2-EU with fusible link
Dimensions and weight
Fig. 2: FKA2-EU with fusible link
B Width of the fire damper (side B)
H Height of the fire damper (side H)
L Length of the fire damper (casing length)
W: 115 mm
Y Keep clear to provide access for operation
x 75 mm size 1
87 mm size 2 and 3
A Installation side
B Operating side
Weight of FKA2-EU with fusible link, see table
Ä 9.
Sizes 1 to 3, see table
Ä 9.
Technical data
FKA2-EU with fusible link
Fire damper Type FKA2-EU8

Limit switches
Connecting cable length / cross section 1 m / 3 × 0.34 mm²
Protection level IP 66
Type of contact 1 changeover, gold-plated
Maximum switching current 0.5 A
Maximum switching voltage 30 V DC, 250 V AC
Contact resistance approx. 30 mΩ
Weight [kg] for casing length L = 305 [mm] / L = 500 [mm]
B
[mm]
H [mm]
100 150 200 250 300 350 400 450 500 550 600 650 700 750 800
200 4/5 4/6 5/7 7/9 8/10 8/11 9/11 10/12 10/13 – – – – – –
250 4/6 5/7 6/7 8/10 8/11 9/12 10/12 10/13 11/14 – – – – – –
300 5/6 5/7 6/8 8/10 9/12 10/13 11/13 11/14 12/15 15/19 16/20 17/21 18/22 19/23 20/24
350 5/7 6/8 7/9 9/12 10/13 11/14 11/15 12/15 13/16 17/20 18/22 19/23 20/24 21/25 22/26
400 6/8 7/9 7/10 10/12 11/14 11/15 12/16 13/17 14/18 18/22 19/23 20/25 21/26 22/27 24/28
450 6/9 7/10 8/11 10/13 11/14 12/16 13/17 14/18 15/19 20/24 21/25 22/26 23/28 24/29 25/31
500 7/9 8/10 9/12 11/14 12/15 13/17 14/18 15/19 16/20 21/26 22/27 23/28 25/30 26/31 27/33
550 7/10 8/11 9/12 12/15 13/16 14/17 15/19 16/20 17/21 22/27 24/28 25/30 26/31 28/33 29/35
600 8/11 9/12 10/13 12/16 13/17 15/18 16/20 17/21 18/22 24/28 25/30 27/32 28/33 29/35 31/36
650 8/11 9/13 10/14 13/17 14/18 15/19 16/21 22/26 24/28 25/30 27/32 28/33 30/35 31/37 33/38
700 9/12 10/13 11/15 14/18 15/19 16/20 17/22 23/28 25/30 26/32 28/33 30/35 31/37 33/39 34/40
750 9/13 10/14 12/16 14/19 16/20 17/21 18/23 24/29 26/31 28/33 30/35 31/37 33/39 35/41 36/42
800 10/13 11/15 12/16 15/19 16/21 18/22 19/24 26/31 27/33 29/35 31/37 33/39 35/41 36/43 38/44
900 – – 15/20 16/21 18/23 24/29 26/31 28/34 30/36 32/38 34/40 36/42 38/44 40/47 42/49
1000 – – 16/21 18/23 19/25 26/32 28/34 30/36 33/39 35/41 37/43 39/46 41/48 43/50 45/53
1100 – – 21/27 24/29 26/32 28/34 31/37 33/39 35/42 37/44 40/47 42/49 44/52 47/54 49/57
1200 – – 23/29 25/31 28/34 30/37 33/39 35/42 36/45 40/47 43/50 45/53 48/55 50/58 53/61
1300 – – 24/31 27/33 30/36 32/39 35/42 38/45 40/48 43/51 46/53 48/56 51/59 54/62 56/65
1400 – – 26/32 29/35 32/39 34/42 37/45 40/48 43/51 46/54 49/57 51/60 54/63 57/66 60/69
1500 – – 27/34 30/38 33/41 36/44 39/47 43/50 46/54 49/57 52/60 55/63 58/67 61/70 64/73
Sizes
1
2
Sizes
3
Technical data
FKA2-EU with fusible link
Fire damper Type FKA2-EU 9
Damper blade with lip seal for sizes 1 and 2, damper blade with travel stop seal for size 3.

Flange holes
Fig. 3: Flange holes L = 305 mm – uneven and even number of holes
Fig. 4: Flange holes L = 500 mm – uneven and even number of holes
A Installation side
B Operating side
Technical data
FKA2-EU with fusible link
Fire damper Type FKA2-EU10

B or H [mm] 100
150
200
250
300
350
400
450
500
550
600 650
700
750
800
900
1000
1100
1200
1300
1400
1500
Number of holes,
side B*
–00111223344
Number of holes,
side H*
00011122––––
* Number of holes horizontally (B) or vertically (H), but without corner holes; B < 400 mm and H only with
corner holes
2.3 FKA2-EU with spring return actuator
Dimensions and weight
Fig. 5: FKA2-EU with Belimo spring return actuator
B Width of the fire damper (side B)
H Height of the fire damper (side H)
L Length of the fire damper (casing length)
W: 115 mm
Y Keep clear to provide access for operation
x 115 mm size 1 – BFL horizontal
107 mm size 2 – BFN horizontal to H = 395 mm
113 mm size 2 from H ≥ 400 mm and
size 3 – BFN vertical
A Installation side
B Operating side
Weight of FKA2-EU with fusible link + approx. 1 kg (BFL... and BFN...), see table
Ä 9.
Sizes 1 to 3, see table
Ä 9.
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU 11

Spring return actuator BFL...
Construction 230-T TR 24-T-ST TR
Supply voltage 230 V AC, 50/60 Hz 24 V AC/DC, 50/60 Hz
Functional range 198 – 264 V AC 19.2 – 28.8 V AC
21.6 – 28.8 V DC
Power rating Spring winding mecha-
nism / hold position
3.5 W / 1.1 W 2.5 W / 0.8 W
Rating 6.5 VA 4 VA
Running time Actuator / spring return < 60 s / < 20 s
Limit switch Type of contact 2 changeover contacts
Switching voltage 5 – 120 V DC / 5 – 250 V AC
Switching current 1 mA – 3 (0.5 inductive) A
Contact resistance < 1 Ω (when new)
IEC protection class / IP protection II / IP 54
Storage temperature / ambient temperature -40 – 55 °C / -30 – 55 °C ¹
Ambient humidity ≤ 95% rh, no condensation
Connecting cable Actuator / limit switch 1 m, 2 × 0.75 mm² / 1 m, 6 × 0.75 mm² (free of halo-
gens)
Spring return actuator type BFL... for size 1.
¹ Up to 75 °C the safe position will definitely be reached.
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU12

Spring return actuator BFN...
Construction 230-T TR 24-T-ST TR
Supply voltage 230 V AC, 50/60 Hz 24 V AC/DC, 50/60 Hz
Functional range 198 – 264 V AC 19.2 – 28.8 V AC
21.6 – 28.8 V DC
Power rating Spring winding mecha-
nism / hold position
5 W / 2.1 W 4 W / 1.4 W
Rating 10 VA (Imax 4 A @ 5 ms) 6 VA (Imax 8.3 A @ 5 ms)
Running time Actuator / spring return < 60 s / < 20 s
Limit switch Type of contact 2 changeover contacts
Switching voltage 5 – 120 V DC / 5 – 250 V AC
Switching current 1 mA – 3 (0.5 inductive) A
Contact resistance < 1 Ω (when new)
IEC protection class / IP protection II / IP 54
Storage temperature / ambient temperature -40 – 55 °C / -30 – 55 °C ¹
Ambient humidity ≤ 95% rh, no condensation
Connecting cable Actuator / limit switch 1 m, 2 × 0.75 mm² / 1 m, 6 × 0.75 mm² (free of halo-
gens)
Spring return actuator type BFN... for size 2 and 3.
¹ Up to 75 °C the safe position will definitely be reached.
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU 13

Spring return actuator BF...
Construction 230-TN TR 24-TN-ST TR
Supply voltage 230 V AC, 50/60 Hz 24 V AC/DC, 50/60 Hz
Functional range 198 – 264 V AC 19.2 – 28.8 V AC
21.6 – 28.8 V DC
Power rating Spring winding mecha-
nism / hold position
8.5 W / 3 W 7 W / 2 W
Rating 11 VA 10 VA
Running time Actuator / spring return < 120 s / approx. 16 s
Limit switch Type of contact 2 changeover contacts
Switching voltage 5 – 120 V DC / 5 – 250 V AC
Switching current 1 mA ... 6 A
Contact resistance < 100 mΩ
IEC protection class / IP protection II / IP 54 III / IP 54
Storage temperature / ambient temperature -40 – 50 °C / -30 – 50 °C ¹
Ambient humidity ≤ 95% rh, no condensation
Connecting cable Actuator / limit switch 1 m, 2 × 0.75 mm² / 1 m, 6 × 0.75 mm² (free of halo-
gens)
BF actuator optional, weight of FKA2-EU with fusible link + approx. 2 kg
¹ Up to 75 °C the safe position will definitely be reached.
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU14

Dimensions and weight
Fig. 6: FKA2-EU with Siemens spring return actuator
B Width of the fire damper (side B)
H Height of the fire damper (side H)
L Length of the fire damper (casing length)
W: 115 mm
Y Keep clear to provide access for operation
x 120 mm size 1 – GRA horizontal
120 mm size 2 – GNA horizontal to H = 395 mm
117 mm size 2 from H ≥ 400 mm and
size 3 – GNA vertical
A Installation side
B Operating side
Weight of FKA2-EU with fusible link + approx. 1.4 kg (GRA... and GNA...), see table
Ä 9.
Sizes 1 to 3, see table
Ä 9.
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU 15

Spring return actuator GRA...
Construction 326.1E 126.1E
Supply voltage 230 V AC, 50/60 Hz 24 V AC, 50/60 Hz /
24 – 48 V DC
Functional range 198 – 264 V AC 19.2 – 28.8 V AC
19.2 – 57.6 V DC
Power rating Spring winding mechanism 7 VA / 4.5 W 5 VA / 3.5 W
Hold position 3.5 W 2 W
Running time Actuator / spring return 90 s / 15 s
Limit switch Type of contact 2 changeover contacts
Switching voltage 24 – 230 V AC / 12 – 30 V DC
Switching current AC: 6 A (inductive 2 A) / DC: 2 A
IEC protection class / IP protection II / IP 42 or IP 54* III / IP 42 or IP 54*
Storage temperature / ambient temperature -20 to 50 °C / -20 to 50 °C
Ambient humidity < 95% rh, no condensation
Connecting cable Actuator / limit switch 0.9 m, 6 × 0.75 mm² (free of halogens)
Spring return actuator type GRA... for size 1.
*Connecting cable at the bottom
Spring return actuator GNA...
Construction 326.1E 126.1E
Supply voltage 230 V AC, 50/60 Hz 24 V AC, 50/60 Hz /
24 – 48 V DC
Functional range 198 – 264 V AC 19.2 – 28.8 V AC
19.2 – 57.6 V DC
Power rating Spring winding mechanism 7 VA / 4.5 W 5 VA / 3.5 W
Hold position 3.5 W 2 W
Running time Actuator / spring return 90 s / 15 s
Limit switch Type of contact 2 changeover contacts
Switching voltage 24 – 230 V AC / 12 – 30 V DC
Switching current AC: 6 A (inductive 2 A) / DC: 2 A
IEC protection class / IP protection II / IP 42 or IP 54* III / IP 42 or IP 54*
Storage temperature / ambient temperature -20 to 50 °C / -20 to 50 °C
Ambient humidity < 95% rh, no condensation
Connecting cable Actuator / limit switch 0.9 m, 6 × 0.75 mm² (free of halogens)
Spring return actuator type GNA... for sizes 2 and 3.
*Connecting cable at the bottom
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU16

Spring return actuator GGA...
Construction 326.1E 126.1E
Supply voltage 230 V AC, 50/60 Hz 24 V AC, 50/60 Hz /
24 – 48 V DC
Functional range 198 – 264 V AC 19.2 – 28.8 V AC
19.2 – 57.6 V DC
Power rating Spring winding mechanism 8 VA / 6 W 7 VA / 5 W
Hold position 4 W 3 W
Running time Actuator / spring return 90 s / 15 s
Limit switch Type of contact 2 changeover contacts
Switching voltage 24 – 230 V AC / 12 – 30 V DC
Switching current AC: 6 A (inductive 2 A) / DC: 2 A
IEC protection class / IP protection II / IP 42 or IP 54* III / IP 42 or IP 54*
Storage temperature / ambient temperature -20 to 50 °C / -20 to 50 °C
Ambient humidity < 95% rh, no condensation
Connecting cable Actuator / limit switch 0.9 m, 6 × 0.75 mm² (free of halogens)
GGA actuator optional, weight of FKA2-EU with fusible link + approx. 2.5 kg
*Connecting cable at the bottom
FKA2-EU with Joventa spring return actuator
The FKA2-EU can also be supplied with Joventa spring
return actuator on request:
SFR 2.90 T
SFR 1.90 T
SFR 1.90 T SLC
Technical data
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU 17

2.4 FKA2-EU with spring return actuator and duct smoke detector
Dimensions and weight
Fig. 7: FKA2-EU with Belimo spring return actuator and duct smoke detector
B Width of the fire damper (side B)
H Height of the fire damper (side H)
L Length of the fire damper (casing length)
W: 115 mm
Y Keep clear to provide access for operation
x 115 mm size 1 – BFL horizontal
107 mm size 2 – BFN horizontal to H = 395 mm
113 mm size 2 from H ≥ 400 mm and
size 3 – BFN vertical
A Installation side
B Operating side
Weight of FKA2-EU with fusible link + approx. 2.5 kg (BFL... and BFN...), see table
Ä 9.
Technical data for spring return actuator, see table
Ä 12 and Ä 14
Sizes 1 to 3, see table
Ä 9.
The type RM-O-3-D duct smoke detector must be installed in the lower inspection access and arranged at the
top when assembling the fire damper. For technical details on the duct smoke detector, see the operating and
installation manual for the type RM-O-3-D duct smoke detector.
Technical data
FKA2-EU with spring return actuator and duct smoke detector
Fire damper Type FKA2-EU18

3 Transport and storage
Delivery check
Check delivered items immediately after arrival for
transport damage and completeness. In case of any
damage or an incomplete shipment, contact the ship-
ping company and your supplier immediately.
Fire damper
–Attachments/accessories, if any
Operating manual (1 per shipment)
Colour hues on the damper blade
The blades of fire dampers are treated with a
greenish impregnating agent. Resulting colour hues
on the damper blade are due to technical reasons
and do not constitute a defect of any kind.
Transport on site
If possible, take the fire damper in its transport pack-
aging up to the installation location.
Storage
If the unit has to be stored temporarily:
Remove any plastic wrapping.
Protect the unit from dust and contamination.
Store the unit in a dry place and away from direct
sunlight.
Do not expose the unit to the effects of weather (not
even in its packaging).
Do not store the unit below -40 °C or above 50 °C.
Packaging
Properly dispose of packaging material.
Transport and storage
Fire damper Type FKA2-EU 19

4 Parts and function
Fire dampers are used as safety related components in
ventilation systems. The fire damper is used as a shut-
off device to prevent fire and smoke from spreading
through ducting. During normal operation the damper
blade is open to enable air passage through the ventila-
tion system.
If the temperature increases in the event of a fire, the
damper blade closes. Release is triggered at 72 °C
( 95 °C in warm air ventilation systems). If the damper
blade closes due to a temperature increase (i.e. in the
event of a fire), it must not be reopened.
4.1 FKA2-EU with fusible link
Fig. 8: FKA2-EU with fusible link
1.1 Casing (galvanised)
1.2 Damper blade
1.5 Inspection access
1.6 Handle
1.7 Interlock
10.14 Thermal release mechanism with fusible link
Functional description
In fire dampers with a fusible link, damper closure is
triggered by the fusible link. If the temperature inside the
fire damper rises to 72 °C or 95 °C, the fusible link trig-
gers a coil spring mechanism. The coil spring mecha-
nism then causes the fire damper to close.
As an option, the fire damper can be either supplied or
subsequently fitted with one or two limit switches. The
limit switches can signal the damper blade position to
the central BMS or fire alarm system. One limit switch
each is required for damper blade positions OPEN and
CLOSED.
4.2 FKA2-EU with spring return
actuator
Fig. 9: FKA2-EU with spring return actuator
1.1 Casing (galvanised)
1.2 Damper blade
1.5 Inspection access
10.1 Spring return actuator
10.13 Thermoelectric release mechanism with temper-
ature sensor
Functional description
The spring return actuator enables the motorised
opening and closing of the damper blade; it can be acti-
vated by the central BMS. Motorised fire dampers can
be used to shut off ducts on a regular basis. As long as
power is supplied to the actuator, the damper blade
remains open. The spring return actuator closes the fire
damper when one of the following events occur:
Temperature in the fire damper > 72 °C or > 95 °C
Ambient temperature outside the release mecha-
nism > 72 °C
The power supply is interrupted (power off to close)
As standard, the spring return actuator is equipped with
limit switches that can be used to indicate the damper
blade position.
Parts and function
FKA2-EU with spring return actuator
Fire damper Type FKA2-EU20