Trox Technik FKRS-EU User manual

Fire damper
Type FKRS-EU
Installation and operating manual
Read the instructions prior to performing any task!
according to Declaration of Performance
DoP / FKRS-EU / DE / 003
GB/en
Note:
Including amendment to FKRS-EU/001 up to FKRS-EU/004

M375EE7, 4, GB/en
Translation of the original
© 2016
TROX GmbH
Heinrich-Trox-Platz
47504 Neukirchen-Vluyn
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: http://www.troxtechnik.com
10/2016
Fire damper Type FKRS-EU2

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, properly trained 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 a fault is processed as quickly as pos-
sible, please keep the following information ready:
Delivery date of the TROX components and sys-
tems
TROX order number
Product name
Brief description of the fault
Contact in case of a 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 FKRS-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.
DANGER!
Imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING!
Potentially hazardous situation which, if not avoided,
could 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 infor-
mation 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 FKRS-EU4

1 Safety.................................................................. 7
1.1 General safety notes................................... 7
1.2 Correct use.................................................. 7
1.3 Qualified staff.............................................. 7
2 Technical data.................................................... 8
2.1 General data................................................ 8
2.2 FKRS-EU with fusible link............................ 9
2.3 FKRS-EU with spring return actuator........ 10
3 Transport and storage.................................... 12
4 Parts and function........................................... 13
4.1 FKRS-EU with fusible link......................... 13
4.2 FKRS-EU with spring return actuator........ 13
4.3 FKRS-EU with fusible link and cover grille
used as an air transfer unit........................ 14
5 Installation........................................................ 15
5.1 Installation situations................................. 15
5.2 Safety notes on installation....................... 17
5.3 General installation information................. 17
5.3.1 After installation...................................... 18
5.4 Solid walls................................................. 19
5.4.1 Mortar-based installation........................ 19
5.4.2 Mortar-based installation with flexible
ceiling joint.............................................. 20
5.4.3 Dry mortarless installation with circular
installation block ER............................... 21
5.4.4 Dry mortarless installation with fire
batt......................................................... 22
5.4.5 Dry mortarless installation with wall face
frame WA................................................ 24
5.4.6 Installation remote from solid walls, use
of an installation kit, wall attachment...... 26
5.4.7 Installation remote from solid walls, use
of an installation kit, wall penetration...... 29
5.5 Solid ceiling slabs...................................... 30
5.5.1 Mortar-based installation........................ 30
5.5.2 Mortar-based installation into wooden
beam ceilings......................................... 33
5.5.3 Mortar-based installation into lightweight
ceilings................................................... 34
5.5.4 Mortar-based installation into concrete
base........................................................ 35
5.5.5 Dry mortarless installation with circular
installation block ER............................... 37
5.5.6 Dry mortarless installation with fire
batt......................................................... 38
5.5.7 Installation remote from solid walls with
installation kit WE................................... 40
5.6 Lightweight partition walls with metal sup-
port structure............................................. 41
5.6.1 Mortar-based installation........................ 43
5.6.2 Dry mortarless installation with square
installation kit TQ.................................... 46
5.6.3 Dry mortarless installation with fire
batt......................................................... 48
5.6.4 Installation remote from lightweight parti-
tion walls with installation kit WE............ 51
5.6.5 Dry mortarless installation with installa-
tion kit GL............................................... 55
5.7 Lightweight partition walls with timber sup-
port structure............................................. 56
5.7.1 Mortar-based installation........................ 58
5.7.2 Dry mortarless installation with square
installation kit TQ.................................... 60
5.7.3 Dry mortarless installation with fire
batt......................................................... 62
5.8 Fire walls................................................... 67
5.8.1 Mortar-based installation........................ 70
5.8.2 Dry mortarless installation with square
installation kit TQ.................................... 71
5.9 Shaft walls................................................. 72
5.9.1 Shaft walls with metal support struc-
ture......................................................... 72
5.9.2 Shaft walls without metal support struc-
ture......................................................... 77
5.10 Suspended installation of the fire
damper.................................................... 80
5.10.1 General................................................. 80
5.10.2 Fixing to the ceiling slab....................... 80
5.10.3 Fire dampers with fire batt.................... 80
5.10.4 Fire damper remote from walls and
ceilings................................................. 83
6 Connecting the ductwork............................... 84
6.1 Ducts......................................................... 84
6.2 Removing the transport/installation protec-
tion............................................................. 84
6.3 Limiting duct expansion............................. 84
6.3.1 Flexible connectors................................ 84
6.4 Cover grille................................................ 85
6.5 Inspection access...................................... 85
7 Making electrical connections....................... 86
7.1 Connecting the limit switches (fire
dampers with fusible link).......................... 86
7.2 Connecting the spring return actuator....... 86
7.3 Equipotential bonding................................ 87
8 Functional test................................................. 88
8.1 Fire damper with fusible link...................... 88
8.2 Fire damper with spring return actuator.... 89
8.3 Functional test with automatic control
unit............................................................. 91
9 Commissioning................................................ 92
10 Maintenance..................................................... 93
10.1 General.................................................... 93
Table of contents
Fire damper Type FKRS-EU 5

10.2 Lubricating points.................................... 93
10.3 Replacing the fusible link......................... 94
10.4 Maintenance............................................ 95
11 Decommissioning, removal and disposal..... 97
12 Index................................................................. 98
Table of contents
Fire damper Type FKRS-EU6
Amendment to FKRS-EU/001 up to
FKRS-EU/004.................................................... 1

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 air and extract
air systems.
The fire damper may be used in potentially explo-
sive atmospheres if appropriate special accessories
are used with it and if the product bears the CE con-
formity marking according to Directive 94/9/EC. Fire
dampers for use in potentially explosive atmos-
pheres are marked for the zones for which they
have been approved.
Operation of the fire dampers is allowed only in
compliance with installation regulations and the
technical data in this installation and operating
manual.
Modifications of the fire damper and the use of
replacement parts that have not been approved by
TROX are not permitted.
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
– without specially approved attachments 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 skilled qualified personnel must carry out
work.
The following degrees of qualification are required for
the work described in the operating manual:
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 FKRS-EU 7

2 Technical data
2.1 General data
Nominal sizes 100 – 315 mm
Volume flow rate range up to 770 l/s
up to 2770 m³/h
Differential pressure range up to 1500 Pa
Operating temperature 1, 3 At least 0 – 50 °C
Release temperature 72 °C or 95 °C (for warm air ventilation systems)
Upstream velocity 2, 3 ≤ 8 m/s with fusible link
≤ 10 m/s with spring return actuator
Closed blade air leakage EN 1751, Class 3
Casing air leakage EN 1751, Class C
EC conformity Construction Products Regulation (EU) no. 305/2011
EN 15650 – Ventilation for buildings – Fire dampers
EN 13501-3 – Classification – Part 3: Fire resisting ducts
and fire dampers
EN 1366-2 – Fire resistance tests for service installa-
tions – Part 2: Fire dampers
EN 1751 Ventilation for buildings – Air terminal devices
Declaration of performance DoP / FKRS-EU / DE / 003
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) For explosion-proof constructions of the FKRS-EU see the corresponding operating manual
Rating plate
Fig. 1: Rating plate (example)
①CE mark
②Manufacturer's address
③Number of the European standard and year of its
publication
④Notified body
⑤The last two digits of the year in which the CE
marking was affixed
⑥Year of manufacture
⑦No. of the declaration of performance
⑧Website from which the DoP can be downloaded
⑨Regulated characteristics; the fire resistance class
depends on the application and may
vary
Ä Chapter 5.1 ‘Installation situations’
on page 15
⑩Type
Technical data
General data
Fire damper Type FKRS-EU8

2.2 FKRS-EU with fusible link
Dimensions and weight
Fig. 2: FKRS-EU with fusible link
1 Keep clear to provide access for operation
ⒶInstallation side
ⒷOperating side
Weight [kg]
Nominal size [mm] 100 125 150 160 180 200 224 250 280 315
ØDN [mm] 99 124 149 159 179 199 223 249 279 314
FKRS-EU with fusible link 1.3 1.6 1.8 2.0 2.3 2.5 2.7 3.3 3.8 4.4
... with circular installation block (ER) 5.7 8.6 7.6 7.3 11.0 9.8 13.5 12.1 16.0 15.0
... with square installation block (TQ) 5.4 6.1 7.0 7.9 8.8 9.7 10.6 12.0 13.7 15.8
... with wall face frame (WA) 4.4 5.2 6.1 6.6 7.4 8.2 9.0 10.2 11.7 13.6
... with installation kit for flexible
ceiling joints (GL)
4.4 5.2 6.1 6.6 7.4 8.2 9.0 10.2 11.7 13.6
... with installation kit for installation
remote from walls and ceilings (WE)
4.4 5.2 6.1 6.6 7.4 8.2 9.0 10.2 11.7 13.6
Technical data
FKRS-EU with fusible link
Fire damper Type FKRS-EU 9

Limit switches
Connecting cable length / cross section 1 m / 3 × 0.34 mm²
Protection level IP 66
Type of contact 1 changeover contact, gold-plated
Maximum switching current 0.5 A
Maximum switching voltage 30 V DC, 250 V AC
Contact resistance approx. 30 mΩ
2.3 FKRS-EU with spring return actuator
Dimensions and weight
Fig. 3: FKRS-EU with spring return actuator
1 Keep clear to provide access for operation
ⒶInstallation side
ⒷOperating side
Weight [kg]
Nominal size [mm] 100 125 150 160 180 200 224 250 280 315
ØDN [mm] 99 124 149 159 179 199 223 249 279 314
FKRS-EU with spring return actuator 3.1 3.4 3.6 3.7 4.0 4.2 4.5 5.0 5.5 6.2
... with circular installation block (ER) 7.5 10.4 9.4 9.1 12.8 11.6 15.3 13.9 17.8 16.8
... with square installation block (TQ) 7.2 7.9 8.8 9.7 10.6 11.5 12.4 13.8 15.5 17.6
... with wall face frame (WA) 6.2 7.0 7.9 8.4 9.2 10.0 10.8 12.0 13.5 15.4
Technical data
FKRS-EU with spring return actuator
Fire damper Type FKRS-EU10

Weight [kg]
Nominal size [mm] 100 125 150 160 180 200 224 250 280 315
... with installation kit for flexible
ceiling joints (GL)
6.2 7.0 7.9 8.4 9.2 10.0 10.8 12.0 13.5 15.4
... with installation kit for installation
remote from walls and ceilings (WE)
6.2 7.0 7.9 8.4 9.2 10.0 10.8 12.0 13.5 15.4
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 compression 3.5 W 2.5 W
Hold position 1.1 W 0.8 W
Rating 6.5 VA 4 VA
Running time Actuator / spring return < 60 s (< 60 s at -30 ... -10 °C)
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 II
Protection level IP 54
Storage temperature -40 ... 55 °C
Ambient temperature -30 ... 55 °C ¹
Ambient humidity ≤ 95 % RH, non-condensing
Connecting cable Actuator 1 m / 2 × 0.75 mm² (free of halogens)
Limit switch 1 m / 6 × 0.75 mm² (free of halogens)
¹ Up to 75 °C the safe position will definitely be reached.
Technical data
FKRS-EU with spring return actuator
Fire damper Type FKRS-EU 11

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 FKRS-EU12

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. Closure 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.
To ensure proper functioning of the fire damper, a test
can be carried out.
Ä 88
4.1 FKRS-EU with fusible link
Fig. 4: FKRS-EU with fusible link
1 Casing
2 Fusible link
3 Damper blade with seal
4 Inspection access (12 mm)
5 Lip seal
6 Handle with interlock and damper blade position
indicator
7 Travel stop for CLOSED position
8 Release mechanism
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 FKRS-EU with spring return
actuator
Fig. 5: FKRS-EU with spring return actuator
1 Casing
2 Temperature sensor
3 Damper blade with seal
4 Inspection access (12 mm)
5 Lip seal
6 Spring return actuator
7 Travel stop for CLOSED position
8 Thermoelectric release mechanism
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. As long as power is supplied
to the actuator, the damper blade remains open. In the
event of a fire, the internal thermoelectric release mech-
anism closes the damper blade when at least one of the
following is true:
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
FKRS-EU with spring return actuator
Fire damper Type FKRS-EU 13

4.3 FKRS-EU with fusible link and
cover grille used as an air transfer
unit
Fig. 6: FKRS-EU with fusible link and cover grille used
as an air transfer unit
1 Casing
2 Fusible link
3 Damper blade with seal
4 Inspection access (12 mm)
5 Cover grille
6 Handle with interlock and damper blade position
indicator
7 Travel stop for CLOSED position
8 Release mechanism
Functional description
Air transfer units prevent fire and smoke from spreading
in buildings. The thermal release mechanism closes the
air transfer unit when the release temperature (72 °C) is
reached. Smoke can, however, spread below this tem-
perature. Air transfer units are installed in places where
the general building inspectorate sees no risk, for
example:
As an inlet for additional supply air in the walls of
required corridors (escape routes) if the inlet is near
the ground (centre line up to 500 mm above floor
surface)
In installation shafts as long as they have sufficient
fire resistance where they penetrate compartment
floors
In installation ducts as long as they have sufficient
fire resistance where they penetrate compartment
floors or walls (except for necessary corridors or
escape routes)
The air transfer unit consists of the FKRS-EU fire
damper with general building inspectorate licence
Z-19.18-2128, with a thermal release mechanism for
72 °C and with cover grilles on both sides, but without a
duct smoke detector.
Parts and function
FKRS-EU with fusible link and cover gr...
Fire damper Type FKRS-EU14

5 Installation
5.1 Installation situations
Note
The performance classes of the fire damper and the wall or ceiling slab may differ. The lower performance class
determines the performance class of the overall system.
Installation situations
Supporting con-
struction
Installation location Min-
imum
thick-
ness
[mm]
Class of perform-
ance EI TT
(ve–ho, i ↔ o) S
up to
Installation
type
Installa-
tion
informa-
tion
Solid walls in 100 EI 120 S N
Ä 19
100 EI 90 S E
Ä 21
100 EI 120 S W 1
Ä 22
in, with flexible ceiling joint 100 EI 90 S N
Ä 20
on the face of 100 EI 90 S E
Ä 24
remote from 100 EI 90 S E
Ä 26
Solid ceiling
slabs
in 100
(150) 4
EI 120 S N
Ä 30
100
(150) 4
EI 90 S E
Ä 37
100
(150) 4
EI 120 S W 1
Ä 38
in, with concrete base 100
(150) 4
EI 120 S N
Ä 35
underneath (suspended, hori-
zontal duct)
100
(150) 4
EI 90 S E
Ä 40
combined with wooden beam ceil-
ings
150 EI 90 S N
Ä 33
combined with modular ceilings 5150 EI 120 S N
Ä 34
Lightweight parti-
tion walls
in, with metal support structure,
cladding on both sides
98 EI 120 S 2N 1
Ä 43
98 EI 90 S E
Ä 46
98 EI 120 S 2W 1
Ä 48
75 EI 30 S N
Ä 45
75 EI 30 S E
Ä 47
1) The class of performance depends on the installation details
2) For lightweight partition walls ≥ EI 120
3) Wall thickness 100 mm – 235 mm
4) Thickness increased near the installation opening
5) Cadolto system
N = Mortar-based installation
E = Installation kit
W = Fire batt
Installation
Installation situations
Fire damper Type FKRS-EU 15

Installation situations
Supporting con-
struction
Installation location Min-
imum
thick-
ness
[mm]
Class of perform-
ance EI TT
(ve–ho, i ↔ o) S
up to
Installation
type
Installa-
tion
informa-
tion
80 EI 60 S W
Ä 50
in, with steel support structure,
cladding on both sides
98 EI 90 S N
Ä 44
98 EI 90 S E
Ä 46
remote from 98 EI 90 S E
Ä 51
in, with metal support structure,
cladding on both sides, flexible
ceiling joint
100 3EI 90 S E
Ä 55
in, with timber support structure
(also timber panel constructions
and timber frames), cladding on
both sides
130 EI 120 S N 1
Ä 58
130 EI 120 S E
Ä 60
130 EI 120 S W 1
Ä 62
105 EI 30 S N
Ä 58
105 EI 30 S E
Ä 60
105 EI 30 S W
Ä 62
in, half-timbered constructions,
cladding on both sides
140 EI 90 S N
Ä 58
140 EI 90 S E
Ä 60
140 EI 90 S W
Ä 62
Fire walls in, with metal support structure,
cladding on both sides
100 EI 90 S N
Ä 70
100 EI 90 S E
Ä 71
Shaft walls in, with metal support structure,
cladding on one side
90 EI 90 S N
Ä 74
90 EI 90 S E
Ä 76
in, with steel support structure,
cladding on one side
90 EI 90 S N
Ä 74
in, without metal support struc-
ture, cladding on one side
50 EI 90 S E
Ä 79
1) The class of performance depends on the installation details
2) For lightweight partition walls ≥ EI 120
3) Wall thickness 100 mm – 235 mm
4) Thickness increased near the installation opening
5) Cadolto system
N = Mortar-based installation
E = Installation kit
W = Fire batt
Installation
Installation situations
Fire damper Type FKRS-EU16

5.2 Safety notes on installation
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.
5.3 General installation information
NOTICE!
Risk of damage to the fire damper
– Protect the fire damper from contamination and
damage.
– Cover openings and release mechanism (e.g.
with plastic foil) to protect them from mortar and
dripping water.
– Do not remove the transport and installation pro-
tection (if any) until installation is complete.
Please note:
Control elements, electric actuator and inspection
access panel must remain accessible for mainte-
nance.
Loads imposed on the casing may impair the func-
tion of the fire damper. Install and connect the
damper in such a way that no loads will be imposed
on the installed damper.
Close larger installation openings or cut holes
according to the wall structure, e.g. masonry work.
Before installation: Perform a functional test, then
close the fire damper. Ä 88
Protect the fire damper from humidity and conden-
sation as they will damage the fire damper.
Installation position
The fire damper can be installed with the damper blade
shaft in any position (0 to 360°)(Fig. 7). The position of
the release mechanism is not critical but the mechanism
must remain accessible for maintenance.
Fig. 7: Installation positions and distances
a Distance between two fire dampers. The distance
depends on the installation situation and is given in
the installation details.
Perimeter gap »s«
With mortar-based installation the perimeter gap »s«
must not exceed 75 mm. The perimeter gap »s« must
be large enough such that mortar can be filled in even in
case of thicker walls. The gap must be large enough
such that mortar can be filled in. We recommend a gap
of at least 20 mm.
Acceptable mortars for mortar-based installation
In case of mortar-based installation, the open spaces
between the fire damper casing and the wall or ceiling
slab must be closed off with mortar. Entrapped air is to
be avoided. The mortar bed depth should be equal to
the thickness of the wall but must be at least 100 mm.
The following mortars are acceptable:
DIN 1053: Groups II, IIa, III, IIIa; fire protection
mortar of groups II, III
EN 998-2: Classes M 2.5 to M 10 or fire protection
mortar of classes M 2.5 to M 10
Equivalent mortars that meet the requirements of
the above standards, gypsum mortar or concrete
Mineral wool as filling material
Unless otherwise stated in the relevant installation
details, mineral wool with a gross density of ≥ 80 kg/m³
and a melting point of 1000 °C must be used.
Fire batt systems
The following fire batt systems are acceptable (fire batt
systems have to be provided by others):
Installation
General installation information
Fire damper Type FKRS-EU 17

Hilti
Firestop board CFS-CT B 1S 140/50
Ablative coating CFS-CT
Fire-resistant sealant CFS-S ACR
HENSEL
Mineral wool slab ROCKWOOL Hardrock 40
Ablative coating HENSOMASTIK 5 KS Farbe
Fire-resistant sealant
HENSOMASTIK 5 KS Spachtel
Promat
Mineral wool slab Paroc Pyrotech Slab 160
Ablative coating Promastopp-CC
For installation with a fire batt the FKRS-EU has to be
coated. Alternatively, sleeves can be used. Sleeves are
to be ordered separately.
Fire-resistant cladding
When you use installation kit WE, the following mate-
rials are acceptable for the cladding of fire dampers and
ducts:
Promatect LS35
Promatect L500
Promatect AD40
5.3.1 After installation
Clean the fire damper.
Remove transport and installation protection, if any.
In case of mortar-based installation this protection
must not be removed until the mortar has hardened.
Test the function of the fire damper.
Connect the ductwork.
Make electrical connections.
Installation
General installation information > After installation
Fire damper Type FKRS-EU18

5.4 Solid walls
5.4.1 Mortar-based installation
Fig. 8: Installation into a solid wall
1 Mortar
ⒶInstallation side
ⒷOperating side
Personnel:
Specialist personnel
Materials:
Mortar
Ä ‘Acceptable mortars for mortar-based installation’ on page 17
Requirements
Performance class up to EI 120 S
Solid walls or fire walls made of, for example, concrete, aerated concrete, masonry, or solid gypsum wallboards
according to EN 12859 (without open spaces), gross density ≥ 350 kg/m³ and W ≥ 100 mm
≥ 40 mm distance to load-bearing structural elements
≥ 40 mm distance between two fire dampers
1. Create an appropriate installation opening, ØDN + 150 mm max.. When you install two fire dampers next to
each other into the same opening, the mortar bed between the two fire dampers must not exceed 150 mm.
2. Push the fire damper into the installation opening and secure it. Make sure that the distance from the con-
necting spigot on the operating side to the wall is 220 mm. If the wall thickness is >115 mm , extend the fire
damper on the installation side with an extension piece or a spiral duct.
3. Close off the perimeter gap »s« with mortar. The mortar bed depth must be at least 100 mm.
If the fire damper is installed as the wall is being erected, the perimeter gap »s« is not required. The open
spaces between the fire damper and the wall must be closed off with mortar. Entrapped air is to be avoided. The
mortar bed depth should be equal to the thickness of the wall.
Installation
Solid walls > Mortar-based installation
Fire damper Type FKRS-EU 19

5.4.2 Mortar-based installation with flexible ceiling joint
Fig. 9: Mortar-based installation in a solid wall with flexible ceiling joint
1 Mortar
2 Mineral wool (depending on the flexible ceiling
joint)
3 Solid ceiling slab
ⒶInstallation side
ⒷOperating side
a Subsidence of ceiling slab according to the code of
good practice
*≤ 30 mm (following subsidence)
Personnel:
Specialist personnel
Materials:
Mortar
Ä ‘Acceptable mortars for mortar-based installation’ on page 17
Requirements
Performance class up to EI 90 S
Solid walls or fire walls made of, for example, concrete, aerated concrete, masonry, or solid gypsum wallboards
according to EN 12859 (without open spaces), gross density ≥ 350 kg/m³ and W ≥ 100 mm
≥ 40 mm distance to load-bearing structural elements
≥ 40 mm distance between two fire dampers
1. Create an appropriate installation opening, ØDN + 150 mm max.
2. Push the fire damper into the installation opening and secure it. Make sure that the distance from the con-
necting spigot on the operating side to the wall is 220 mm.
If the wall thickness is >115 mm , extend the fire damper on the installation side with an extension piece or a
spiral duct.
3. Close off the perimeter gap »s« with mortar. The mortar bed depth must be at least 100 mm.
4. Fill the gap above the mortar bed with mineral wool.
Installation
Solid walls > Mortar-based installation with flexi...
Fire damper Type FKRS-EU20