FKRS-EU

FKRS-EU with Belimo spring return actuator

FKRS-EU with fusible link for 72 °C or 95 °C

CE-konform gemäß europäischen Vorschriften

With TROXNETCOM as an option

ATEX-Zertifizierung

Testata secondo VDI 6022

Conforme a VDI 6022

FKRS-EU

COMPACT DIMENSIONS – IDEAL FOR RESTRICTED SPACES

Small circular fire damper for shutting off air ducts between 2 fire compartments, available in 10 nominal sizes

Nominal sizes: 100 – 315 mm
Low differential pressure and sound power level
Explosion-proof construction (ATEX) as an option
Optional use as upstream shutter of an air transfer unit
Optional use as air transfer damper
Optional stainless steel casing or powder-coated casing for increased corrosion protection
Integration into the central BMS with TROXNETCOM
Universal installation options

Optional equipment and accessories

Electric actuator 24 V/230 V
Release temperature 72/95 °C

Useful additions

Duct smoke detectors

Updating products

Initialize order code

general information

Application

Fire dampers with CE marking and declaration of performance, for the isolation of duct penetrations between two fire compartments in the event of a fire
To prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments

Special features

Declaration of Performance according to the European Construction Products Regulation
Classification according to EN 13501-3, up to EI 120 (v_e, h_o i ↔ o) S
Certified mortar-based installation with reduced distances of 40 mm to load-bearing components or at least 10 mm between 2 fire dampers
Surrounding gap dimensions in the mortar-based installation with mortar up to 225 mm permitted
Meets the requirements of European product standard EN 15650
Tested for fire resistance properties in accordance with EN 1366-2 (300 Pa and 500 Pa negative pressure)
Meets the hygienic requirements according to VDI 6022-1, VDI 3803-1, DIN 1946-4, DIN EN 16798-3 as well as Ö-Norm H 6020 and H 6021 and SWKI
Corrosion protection according to EN 15650 in connection with EN 60068-2-52
Closed blade air leakage acc. to EN 1751, class 3
Casing air leakage acc. to EN 1751, class C
Low differential pressure and sound power level
Any airflow direction
Integration into the central BMS with TROXNETCOM
Integration into the central building management system with the international standard fire damper system according to IEC 62026-2 with AS interface is possible

Classification

Class of performance up to EI 120 (v_e, h_o, i ↔ o) S according to EN 13501-3

Nominal sizes

100, 125, 150, 160, 180, 200, 224, 250, 280, 315
L: 400 mm

Variants

With fusible link
With spring return actuator
With spring return actuator for use in potentially explosive atmospheres
With cover grille on both sides as an upstream shutter for the air transfer unit
With spring return actuator, duct smoke detector and cover grille on both sides as air transfer damper according to general building inspectorate licence Z-6.50-2516

For installation in Germany, please note: If a fire damper with only a mechanical shut-off element is to be used as an air transfer unit, the local building regulations apply. Such air transfer units are usually used in pressure differential systems only.

Parts and characteristics

Release temperature 72 °C or 95 °C (for use in warm air ventilation systems)
Single-handed operation
Installation orientations from 0° - 360
Explosion-proof constructions for zones 1, 2, 21, 22

Attachments

Limit switch for damper blade position indication
Spring return actuator with 24 V AC/DC or 230 V AC supply voltage
Spring return actuator for 24 – 230 V supply voltage, for use in potentially explosive atmospheres
Network module for the integration with AS-i or LON networks
Spring return actuator and pre-wired duct smoke detector with 230 V AC, 50/60 Hz or 24 V DC supply voltage for use as air transfer damper
All attachments can also be retrofitted

Accessories

Installation block ER for dry mortarless installation in solid walls and ceilings
Installation kit TQ2 for dry mortarless installation in solid walls, in lightweight walls/fire walls with metal support structure and cladding on both sides, in shaft walls with and without metal stud frame, in timber stud, timber frame and solid timber walls as well as in solid timber ceilings, woodbeamed ceilings, and in combination with lightweight ceilings (ADK Modulraum system)
Installation kit WA2 for dry mortarless installation in solid walls as well as in single-sided shaft walls with and without metal stud framing
Installation kit WE2 for dry mortarless installation away from solid walls and ceilings as well as away from lightweight walls with metal stud frame cladding on both sides
Installation kit GL2 for installation in lightweight partition walls/fire walls with flexible ceiling joint and for dry mortarless installation in lightweight partition walls with metal stud frame and cladding on both sides during wall construction
Cover grilles
Flexible connectors
Extension piece

Useful additions

Duct smoke detector RM-O-3-D
Duct smoke detector with airflow monitor RM-O-VS-D

Construction features

Rigid circular casing suitable for push fitting into cut circular holes without additional drilling and chiselling being required
Spigot connections with lip seal on both ends, suitable for ventilation ducts according to EN 1506 and EN 13180 plus non-standard but commercial nominal sizes 180, 224 and 280
Suitable for the connection of ducts, cover grilles or flexible connectors
The release mechanism is accessible and can be tested from the outside
One inspection access panel
Remote control with spring return actuator

Standards and guidelines

Construction Products Regulation
EN 15650 Ventilation for buildings – Fire dampers
EN 1366-2 Fire resistance tests for service installations – Fire dampers
EN 13501-3 Fire classification of construction products and building elements
EN 1751 Ventilation for buildings – Air terminal devices
2006/42/EC – Machinery Directive
2014/34/EU – ATEX Directive

Materials and surfaces

Casing:

Galvanised sheet steel
Galvanised sheet steel, powder-coated RAL 7001
Stainless steel 1.4301

Damper blade:

Special insulation material
Special insulation material with impregnation
Replaceable damper blade (from NS 180 mm)

Other components:

Damper blade shaft made of galvanised steel or stainless steel
Plastic plain bearings
Elastomer seals

The design variants made of stainless steel or with powder-coated casings meet increased requirements for corrosion protection. Detailed resistance lists upon request.

Supply package

If attachments and accessories are factory-mounted on the fire dampers, they are already included in the order code. Depending on the installation situation, additional materials such as mortar, screws or mineral wool may be required for correct installation. Such materials are not usually included in the supply package (unless stated otherwise). Attachments and accessories have to be selected by people in charge of the building project. These people also have to select and provide any additionally required installation or fixing materials and make sure that the required classifications are met.

Maintenance

The functional reliability of the fire damper must be tested at least every six months; this has to be arranged by the owner of the ventilation system; functional tests must be carried out in compliance with the basic maintenance principles stated in EN 13306 and DIN 31051. If two consecutive tests, one 6 months after the other, are successful, the next test can be conducted one year later.
A functional test involves closing the damper blade and opening it again; with a spring return actuator this can be done via remote control
Fire dampers must be included in the regular cleaning schedule for the ventilation system.
For details on functional tests, maintenance and inspection refer to the installation and operating manual

Technical data

Nominal sizes: 100 to 315 mm
Casing length: 400 mm
Volume flow rate range: up to 770 l/s (2770 m³/h)
Differential pressure range: up to 1500 Pa
Temperature range: -20 - 50 °C *
Upstream velocity **: Standard version ≤ 8 m/s, version with spring return actuator ≤ 10 m/s, version with Ex actuator ExMax/RedMax-15-BF TR ≤ 10 m/s

* For FKRS-EU in Ex version, see supplementary operating instructions

** Data apply to uniform upstream and downstream conditions of the fire dampers

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.
The fire damper may be used in areas with potentially explosive atmospheres if suitable special accessories are used with it and if the product bears the CE conformity marking according to Directive 2014/34/EU. Fire dampers for use in areas with potentially explosive atmospheres are marked for the zones for which they have been approved.
Operation of fire dampers is allowed only in compliance with installation regulations and the technical data in the installation and operating manual.
Modifying the fire damper or using replacement parts that have not been approved by TROX is not permitted.

Incorrect use:

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

For installation in Germany please note:

Do not use it in extract air systems in commercial kitchens
Do not use it as an air transfer damper
Do not use it with a combined penetration seal
Single installation in a sandwich panel wall is considered correct use. Do not combine it with cable penetrations
Air transfer units may require a building inspectorate licence. This has to be determined and applied for on a case to case basis (by others).
Flame-resistant building materials that form no dripping droplets (elastomer foams) have to be at least of fire rating class C - s2, d0 according to the German MVV TB (2019/1) guideline. The current national building regulations apply.

Installazione e messa in servizio

Installation is to be carried out according to the installation and operating manual.

Mortar-based installation:

In solid walls, also combined installation, multiple installation and installation with partial mortaring
In non-load-bearing solid walls with flexible ceiling joint
In lightweight partition walls and compartment walls with metal support structure and cladding on both sides, also combined installation
In timber stud walls, half-timbered constructions and solid wood walls
In shaft walls with metal support structure and cladding on one side, also combined installation
In solid ceilings slabs and in a concrete base on solid ceiling slabs, also multiple installation and combined installation in a concrete base
In hollow core slabs, hollow concrete block ceilings, composite ceilings and ribbed ceilings
In conjunction with wooden beam ceilings, solid wood ceilings and lightweight ceilings (Cadolto system)
In solid wood ceilings, wooden beam ceilings and historic wooden beam ceilings

Dry mortarless installation:

In solid walls and ceiling slabs with installation block ER
In solid walls, lightweight partition walls and compartment walls with metal support structure and cladding on both sides: with installation kit TQ2
On the face of solid walls with installation kit WA2
Remote from solid walls and ceiling slabs (horizontal duct) and remote from lightweight partition walls with metal support structure and cladding on both sides: with installation kit WE2
In solid walls and ceiling slabs using a fire batt
In solid wood and wooden beam ceilings with installation kit TQ2
Dry mortarless installation without installation kit in lightweight partition walls with metal support structure and cladding on both sides
In lightweight partition walls with metal support structure or steel support structure and cladding on both sides: with installation kit TQ
In lightweight partition walls with metal support structure and cladding on both sides: with installation kit GL2 as the wall is being erected
In lightweight partition walls and compartment walls with metal support structure, cladding on both sides and flexible ceiling joint: with installation kit GL2
In lightweight partition walls and compartment walls with metal support structure and cladding on both sides using a fire batt
In timber stud walls and half-timbered constructions with cladding on both sides, also in solid wood walls: with installation kit TQ2
In timber stud walls and half-timbered constructions with cladding on both sides, also in solid wood walls: with a fire batt
In shaft walls with or without metal support structure and cladding on one side with installation kit TQ2
In shaft walls with or without metal support structure and cladding on one side with installation kit WA2
In solid walls, lightweight partition walls with metal support structure or timber support structure, solid wood walls and sandwich panel walls: with Hilti fire stop blocks CFS-BL
Combined installation (with cable and pipe penetrations in a combined penetration seal) in solid walls, lightweight partition walls with metal support structure or timber support structure, and in solid wood walls (in Germany this requires official approval)
Combined installation (with cable penetrations in Hilti fire stop blocks CFS-BL) in solid walls, lightweight partition walls with metal support structure or timber support structure, in solid wood walls and in sandwich panel walls (in Germany this requires official approval)
Remote from solid walls, lightweight partition walls with metal support structure or timber support structure and solid wood walls with mineral wool insulation

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

Construction with fusible link

In the event of a fire, fire dampers shut automatically to prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments. In the event of a fire, the damper is triggered at 72 °C or at 95 °C (use in warm air ventilation systems) by a fusible link. The release mechanism is accessible and can be tested from the outside

One or two limit switches (optional attachment) can be used to indicate the damper blade position.

Casing
Fusible link
Damper blade with sealing ring
Inspection access (12 mm)
Lip seal
Handle and damper blade position indicator
Travel stop for CLOSED position
Thermal release mechanism

Functional description

Nominal sizes	100 – 315 mm
Casing length	400 mm
Volume flow rate range	Up to 770 l/s / up to 2770 m³/h
Differential pressure range	Up to 1500 Pa
Temperature range ^{1, 3, 4}	-20 to 50 °C
Release temperature	72 °C or 95 °C (for warm air ventilation systems)
Upstream velocity ²	≤ 8 m/s with standard version; ≤ 10 m/s version with spring return actuator

¹ Temperatures may differ for units with attachments. Details for other applications are available on request.
** Data apply to uniform upstream and downstream conditions of the fire dampers
* For FKRS-EU in Ex version, see supplementary operating instructions
³ Non-condensing operation and without moisture entry via the outdoor air intake.

Free cross sections and Zeta values

	NS
	100	125	150	160	180	200	224	250	280	315
A [m²]	0.005	0.009	0.014	0.016	0.021	0.027	0.033	0.042	0.053	0.069
ζ	1.71	1.08	0.76	0.67	0.54	0.44	0.56	0.45	0.36	0.28

Quick sizing tables provide a good overview of the possible volume flow rates at certain different sound power levels, at a differential pressure of up to 35 Pa. Approximate intermediate values can be interpolated. Precise intermediate values can be calculated with our Easy Product Finder design program. The Easy Product Finder can be found on our website: www.trox.de/mytrox/auslegungsprogramm-easy-poduct-finder-182e16348fac3d33

Volume flow rate qv for differential pressure Δpst < 35 Pa

L_WA [dB(A)]	NS
L_WA [dB(A)]	100	125	150	160	180	200	224	250	280	315
25 [l/s]	22	40	70	80	105	140	170	215	280	360
35 [l/s]	35	65	105	125	165	210	245	315	405	525
45 [l/s]	43	87	150	180	235	295	345	445	570	735
25 [m³/h]	79	144	252	288	388	504	612	774	1008	1296
35 [m³/h]	126	234	378	450	587	756	882	1134	1458	1890
45 [m³/h]	157	315	540	648	847	1062	1242	1602	2052	2646

Sizing example

Given data
Volume flow rate: 500 m³/h
Sound power level: ≤ 35 dB(A)

Quick sizing
FKRS-EU/180

Specification text

Circular fire damper that meets the requirements of the European product standard EN 15650. Tested for fire resistance properties to EN 1366-2 (negative pressure of 300 Pa and 500 Pa), with CE marking.

With the Declaration of Performance (DoP), the fire damper manufacturer provides evidence of the respective installation conditions, such as in, on and away from walls or ceilings, with the essential features such as size, supporting structure, type of construction and installation and the respective associated performance classes according to classification standard DIN EN 13501-3.

The ready-to-use unit contains a release device and a replaceable, fire-resistant damper blade that can be arranged with installation position 0 - 360 degrees depending on the use.

Classification (depending on application):

EI 30 (ve, ho i ↔ o) S to EI 120 (ve, ho i ↔ o) S.

Suitable for:

Mortar-based installation

In solid walls, also with partial mortar lining, as well as in walls made of gypsum wallboards
In non-load-bearing solid walls with flexible ceiling joint
In lightweight walls, fire walls, safety partition walls and radiation protection walls with metal studs or steel substructure and cladding on both sides
In timber stud walls and timber frame walls as well as in solid wood and cross laminated timber walls
In shaft walls with metal support structure and cladding on one side
In solid ceilings and in concrete bases on solid ceilings
In hollow core slabs, hollow concrete block ceilings, composite ceilings and ribbed ceilings
In combination with wooden beam ceilings, solid wood ceilings and lightweight ceilings (Cadolto and ADK Modulraum systems)
In solid wood ceilings, wooden beam ceilings and historic wooden beam ceilings
Combined installation with FK2-EU in solid walls and ceilings, lightweight walls, shaft walls as well as timber stud walls and timber frame walls (up to 1.2 m² total fire damper area)
Multiple occupancy up to 1.2m² total fire damper area in solid walls and ceilings, lightweight walls as well as shaft walls

Dry mortarless installation

In solid walls and ceiling slabs with installation block ER
In solid walls, lightweight walls, fire walls, safety partition walls and radiation protection walls with metal stud frame or steel substructure and cladding on both sides, with installation kit TQ2
Dry mortarless installation without installation kit in lightweight partition walls with metal support structure and cladding on both sides
With installation kit GL2, In lightweight partition walls with metal support structure and cladding on both sides, during wall construction
In lightweight partition walls and compartment walls with metal support structure, cladding on both sides and flexible ceiling joint, with installation kit GL2
In timber stud walls and half-timbered constructions with cladding on both sides, also in solid wood walls, with installation kit TQ2
In shaft walls with or without metal support structure and cladding on one side, with installation kit TQ2
On solid walls as well as on shaft walls with and without metal studs and planking on one side, with installation kit WA2
In solid wood and wooden beam ceilings as well as lightweight ceilings (ADK Modulraum system), with installation kit TQ2
Remote from solid walls and ceiling slabs (horizontal duct) and remote from lightweight partition walls with metal support structure and cladding on both sides, with installation kit WE2
Away from solid walls, lightweight walls with metal studs and cladding on both sides, as well as timber stud and timber frame walls and solid wood walls with mineral wool insulation

Coated board system installation

In solid walls and ceilings with coated board system, also multiple occupancy
In lightweight walls, fire walls, safety partition walls and radiation protection walls with metal studs or steel substructure and cladding on both sides, also multiple occupancy, as well as in shaft walls with metal studs with coated board system
In timber stud and timber frame walls and cladding on both sides, also multiple occupancy, as well as solid timber walls with coated board system

Other (in Germany: buidling approval required)

In solid walls, lightweight walls with metal and wooden studs, solid wood walls and sandwich panels with HILTI fire protection blocks CFS-BL (stone bulkhead)
Mixed installation with cable and pipe penetrations (combined penetration seal) in solid walls, lightweight walls with metal and wooden studs and solid wood walls
Mixed installation with cable penetrations in HILTI fire stop blocks CFS-BL (stone bulkhead) in solid walls, lightweight walls with metal and wooden studs, solid wood walls and sandwich panels

Sizes: 100, 125, 150, 160, 180, 200, 224, 250, 280, 315 mm

Optimised low-leakage casing, up to leakage class C to EN 1751 with low differential pressure and low sound power level.

Damper casing made of galvanised sheet steel, optionally galvanised sheet steel with powder coating RAL 7001, or stainless steel 1.4301. Damper blade made of special insulating material, optionally with impregnation. Corrosion protection according to EN 15650 in connection with EN 60068-2-52 Meets the hygienic requirements according to VDI 6022-1, VDI 3803-1, DIN 1946-4, DIN EN 16798-3 as well as the Ö-Norm H 6020 and H 6021 and the SWKI.

Casing length 400 mm, for the connection to ducts made of non-combustible or combustible materials. Thermal release at 72 °C or 95 °C (warm air ventilation systems) with a fusible link or thermoelectrically with a spring return actuator, push button and indicator light (LED). Versions with a brushless spring return actuator for opening and closing the fire damper, also when the ventilation system is running and regardless of the nominal size, are particularly suitable for functional checks or daily shut-offs of duct sections. A spring return actuator can be retrofitted from the outside without modifying the linkage.

Explosion-proof constructions for zones 1, 2, 21 and 22 with spring return actuator.

Special features

Declaration of Performance according to the European Construction Products Regulation
Classification according to EN 13501-3, up to EI 120 (v_e, h_o i ↔ o) S
Complies with the European product standard EN 15650
Tested for fire resistance properties in accordance with EN 1366-2 (300 Pa and 500 Pa negative pressure)
Certified wet installation with reduced distances of 40 mm to load-bearing components or 10 mm between 2 fire dampers
Surrounding gap dimensions in the mortar-based installation with mortar up to 225 mm permitted
Inspection opening (12 mm)
Meets the hygienic requirements according to VDI 6022-1, VDI 3803-1, DIN 1946-4, DIN EN 16798-3 as well as Ö-Norm H 6020 and H 6021 and SWKI
Corrosion protection according to EN 15650 in connection with EN 60068-2-52
Air leakage with closed damper blade acc. to EN 1751, class 3
Casing air leakage acc. to EN 1751, class C
Low differential pressure and sound power level
Any airflow direction
Integration into the building management system with the international standard fire damper system according to IEC 62026-2 with AS interface is possible

Technical data

Nominal sizes: 100 to 315 mm
Casing length: 400 mm
Volume flow rate range: up to 770 l/s (2770 m³/h)
Differential pressure range: up to 1500 Pa
Temperature range: -20 - 50 °C *
Upstream velocity **: Standard version ≤ 8 m/s, version with spring return actuator ≤ 10 m/s, version with Ex actuator ExMax/RedMax-15-BF TR ≤ 10 m/s

* For FKRS-EU in Ex version, see supplementary operating instructions

** Data apply to uniform upstream and downstream conditions of the fire dampers

Materials and surfaces

Casing:

Galvanised sheet steel
Galvanised sheet steel, powder-coated RAL 7001
Stainless steel 1.4301

Damper blade:

Special insulation material
Special insulation material with impregnation
Replaceable damper blade (from NS 180 mm)

Other components:

Damper blade shaft made of galvanised steel or stainless steel
Plastic plain bearings
Elastomer seals

The design variants made of stainless steel or with powder-coated casings meet increased requirements for corrosion protection. Detailed resistance lists upon request.

Equivalence criteria

The Declaration of Performance in accordance with the Construction Products Regulation describes all CE-certified installation types, including the performance class up to EI 120 S in accordance with EN 13501-3 and the essential characteristics of at least the permissible size and supporting structure
Meets the hygienic requirements according to VDI 6022-1, VDI 3803-1, DIN 1946-4, DIN EN 16798-3 as well as Ö-Norm H 6020 and H 6021 and SWKI
CE-marked and thus fire tested according to EU regulation 305/2011 and assessed according to Machinery Directive 2006/42/EC and ATEX Directive 2014/34/EU
CE-certified mortar-based installation at a distance ≥ 10 mm between 2 fire dampers
Pressure loss < 10 Pa with reference size 315 mm and 6 m/s face velocity
Sound power < 35 dB (A) with reference size 315 mm and 6 m/s face velocity
Combined mortar-based installation with fire dampers of the FK2-EU type in solid walls, lightweight walls with cladding on both sides, timber stud and timber frame walls as well as solid ceilings
Multiple occupancy up to 1.2 m² total fire damper area in solid walls and ceilings

Life cycle assessment

A life cycle assessment is available for the product series in form of an Environmental Product Declaration (EPD) that has been checked and published by a programme holder.

Order code FKRS-EU

FKRS-EU

–

200

TQ2

ZL09

1 Type
FKRS-EU Fire damper

2 Casing variant
No entry: standard construction
1 powder-coated casing, RAL 7001 (silver grey)
2 Stainless steel casing

3 Damper blade variant
No entry: standard variant
7 impregnated damper blade

4 Fusible link/thermoelectric release device
No entry: 72 °C release temperature
W¹ 95 °C release temperature (only for use in warm air ventilation systems)
W² with coated fusible link, 72 °C release temperature
WB² with coated fusible link, 95 °C release temperature (only for use in warm air ventilation systems)

5 Country of destination
Specify country code

6 Nominal size [mm]
100, 125, 150, 160, 180, 200, 224, 250, 280, 315

7 Accessories 1
No entry: without accessories
ER circular installation block
TQ2 square installation kit
WA2 Installation kit for mounting directly on walls
WE2 Installation kit for installation away from walls and ceilings
GL2 Installation kit for flexible ceiling joint

8 Accessories 2
No entry: without accessories

2 entries required: accessories for operating side and for installation side
0 Side without accessories
A Cover grille
S flexible connector

9 Attachment
Z00 – ZEX4

¹ not with attachment ZEX1 - ZEX4
² only with attachment part Z00 - Z03

Order example: FKRS-EU-2-7/DE/200/TQ2/SS/ZL09

Type	FKRS-EU
Variant	Stainless steel casing and impregnated damper blade
Country of destination	Germany
Nominal size [mm]	200
Accessories 1	Square installation kit
Accessories 2	Flexible connector on operating and installation side
Attachment	Spring return actuator 24 V AC/DC and LON module LON-WA1/B3

Order code for FKRS-EU as an upstream shutter of an air transfer unit

FKRS-EU

–

200

Z03

1 Type
FKRS-EU Fire damper as an upstream shutter of an air transfer unit

2 Construction
No entry: standard construction
1 Powder-coated casing, RAL 7001 (silver grey)
7 impregnated damper blade
1-7 powder-coated casing, RAL 7001 (silver grey), and impregnated damper blade

3 Country of destination
DE Germany
Other destination countries upon request

4 Nominal size [mm]
100, 125, 150, 160, 180, 200, 224, 250, 280, 315

5 Accessories 2
AA Cover grille on operating and installation side

6 AttachmentZ00 – Z03

Order example: FKRS-EU-1-7/DE/200/AA/Z03

Type	FKRS-EU (as an upstream shutter of an air transfer unit)
Variant	powder-coated casing, RAL 7001 (silver grey), and impregnated damper blade
Country of destination	Germany
Nominal size [mm]	200
Accessories 2	Cover grille on operating and installation side
Attachment	Limit switches for damper blade positions CLOSED and OPEN

If the damper is to be used as an air transfer unit in Germany, please note:
If a fire damper with only a mechanical shut-off element is to be used as an air transfer unit, the local building regulations apply. Such applications may require a building inspectorate licence. This must be checked and applied for by the client. Such air transfer units are usually used in pressure differential systems only., Order code FKRS-EU as air transfer damper

FKRS-EU

–

200

TQ2

Z43RM

1 Type
FKRS-EU Air transfer damper (MFD)

2 Casing variant
No entry: standard construction
1 powder-coated casing, RAL 7001 (silver grey)
2 Stainless steel casing

3 Damper blade variant
No entry: standard variant
7 impregnated damper blade

4 Country of destination
Specify country code

5 Nominal size [mm]
100, 125, 150, 180, 200, 224, 250, 280, 315

6 Accessories 1
No entry: without accessories
ER circular installation block
TQ2 square installation kit
Installation kits GL2 and WA2 can be ordered separately

7 Accessories 2
AA Cover grille on operating and installation side

8 AttachmentZ43RM, Z45RM, Z43RMS, Z45RMS, ZA12

Order example: FKRS-EU-1-7/DE/200/TQ2/AA/Z43RM

Type	FKRS-EU (as air transfer damper)
Variant	powder-coated casing, RAL 7001 (silver grey), and impregnated damper blade
Country of destination	Germany
Nominal size [mm]	200
Accessories 1	square installation kit
Accessories 2	Cover grille on operating and installation side
Attachment	Spring return actuator 230 V AC with factory mounted and wired duct smoke detector RM-O-3-D as air transfer damper

Dimensions, Accessories

FKRS-EU with installation block ER

① FKRS-EU

② Installation block ER with cover plate

FKRS-EU (variant with fusible link) with limit switch

Accessories 1 – installation block ER

Accessories 1	Order code
Circular installation block	ER

Dimensions of the core hole/cover plate [mm]

	NS
	100	125	150	160	180	200	224	250	280	315
ØD1 ¹	200	250	250	250	300	300	350	350	400	400
□B	250	300	300	300	350	350	400	400	450	450

¹ Diameter of core drilling in solid walls and ceilings

Weights for FKRS-EU with fusible link and installation block ER, see dimensions/table weights

Accessories 1 – installation kit TQ2

Accessories 1	Order code
Square installation kit	TQ2

Weights for FKRS-EU with fusible link and installation kit TQ2, see dimensions/table weights

Accessories 1 – installation kit WA2

Accessories 1	Order code
Installation kit	WA2

Weights for FKRS-EU with fusible link and installation block WA2, see Dimensions/table Weights

Accessories 1 – installation kit WE2

Accessories 1	Order code
Installation kit	WE2

Weights for FKRS-EU with fusible link and installation block WE2, see Dimensions/table Weights

Accessories 1 – installation kit GL2

Accessories 1	Order code	Wall thickness [mm]
Installation kit	GL2	100 – 235 mm ¹

¹The installation kit can be adapted to the wall thickness (by others)

Weights for FKRS-EU with fusible link and installation block GL2, see dimensions/table weights

Accessories 2 – cover grille

Cover grilles for FKRS-EU

Operating side	Installation side	Order code
Cover grilles	–	A0
–	Cover grilles	0A
Cover grilles	flexible connector	AS
flexible connector	Cover grilles	SA
Cover grilles	Cover grilles	AA *

* AA for FKRS-EU as upstream shutter of an air transfer damper and air transfer damper according to general type approval Z-6.50-2516.

Accessories 2 – flexible connector

Operating side	Installation side	Order code
flexible connector	–	S0
–	flexible connector	0S
flexible connector	flexible connector	SS
flexible connector	Cover grilles	SA
Cover grilles	flexible connector	AS

Accessories 2 – extension piece

Open blade protrusion [mm]

NS	100	125	150	160	180	200	224	250	280	315
x	-220	-208	-195	-190	-180	-170	-158	-145	-130	-113
y	-80	-67.5	-55	-50	-40	-30	-18	-5	10	27.5

① x [mm]

② y [mm]

Attachment– limit switch

Attachment	Order code
Limit switch for damper blade position CLOSED	Z01
Limit switch for damper blade position OPEN	Z02
Limit switches for damper blade positions CLOSED and OPEN	Z03

Attachment – spring return actuator

Attachment	Order code
Spring return actuator 230 V (Belimo)	Z43
Spring return actuator 24 V (Belimo)	Z45
Spring return actuator 230 V (Siemens)	Z43S
Spring return actuator 24 V (Siemens)	Z45S

Attachment – spring return actuator in Ex construction

Accessorio	Codice d'ordine
ExMax-15-BF TR	ZEX1
RedMax-15-BF TR	ZEX3

Type of actuation	Release mechanism	Labeling	Ambient temperature	Maximum airflow velocity
ExMax-15-BF TR	ExPro-TT *	II 2G Ex h IIC T6 Gb II 2D Ex h IIIC T80°C Db	-40 ... 40 °C	10 m/s
ExMax-15-BF TR	ExPro-TT *	II 2G Ex h IIC T5 Gb II 2D Ex h IIIC T95°C Db	-40 °C ≤ Ta ≤ +50 °C	10 m/s
RedMax-15-BF TR	ExPro-TT *	II 3G Ex h IIC T6 Gc II 3D Ex h IIIC T80°C Dc	-40 ... 40 °C	10 m/s
RedMax-15-BF TR	ExPro-TT *	II 3G Ex h IIC T5 Gc II 3D Ex h IIIC T95°C Dc	-40 °C ≤ Ta ≤ +50 °C	10 m/s

* Release temperature: 72 °C

Attachment - spring return actuator and RM-O-3-D as air transfer damper

Attachment	Order code
With spring return actuator 230 V (Belimo) and duct smoke detector type RM-O-3-D	Z43RM¹
With spring return actuator 24 V (Belimo) and duct smoke detector type RM-O-3-D	Z45RM¹
With spring return actuator 230 V (Siemens) and duct smoke detector type RM-O-3-D	Z43RMS¹
With spring return actuator 24 V (Siemens) and duct smoke detector type RM-O-3-D	Z45RMS¹

¹ If the unit is not connected to ducting, cover grilles are required on both ends. In conjunction with spring return actuator, duct smoke detector type RM-O-3-D and cover grilles on both sides, this is an air transfer damper with general type approval: Z-6.50-2516.

Attachment – Spring return actuator and TROXNETCOM

Attachment	Order code
Spring return actuator 24 V and AS-EM	ZA07
Spring return actuator 24 V, RM-O-3-D and AS-EM	ZA12 ¹
Spring return actuator 24 V and MB-BAC-WA1/2	ZB01
Spring return actuator 24 V and LON-WA1/B3	ZL09
Spring return actuator 24 V and WA1/B3-AD	ZL10
Spring return actuator 24 V and WA1/B3-AD230	ZL11
Spring return actuator 24 V and TNC-Linkbox	ZA14
Spring return actuator 24 V and MB-BAC-WA1/2	ZB01

¹ Can be used as an air transfer damper with fusible link and end grilles on both sides, in accordance with general type approval Z-6.50-2516.

Attachment – Explosion-proof spring return actuator and TROXNETCOM

Attachment	Order code
AS-Interface module and ExMax-15-BF TR	ZEX2
AS-Interface module and RedMax-15-BF TR	ZEX4

Attachment – Duct smoke detectors

General

To prevent smoke from spreading in buildings, it is extremely important that the smoke is detected at an early stage.
Duct smoke detectors that operate on the principle of light scattering detect the smoke regardless of its temperature so that the fire dampers can be closed before the release temperature of 72 °C is reached
If the air contains suspended particles, as is the case with smoke, beams of light are deflected off these. A sensor (photodiode), which does not receive light in clear air, is illuminated by the scattered light.
The fire damper or smoke protection damper blade is released when the brightness of the scattered light exceeds a certain threshole

Duct smoke detector for fire dampers and smoke protection dampers
General building inspectorate licence Z-78.6-125
For airflow velocities from 1 – 20 m/s
Independent of the airflow direction
Supply voltage 230 V AC, 50/60 Hz or 24 V DC with voltage monitoring module (VWM) (upon request)
Volt-free signal and alarm relays
Integral signal lamps
Contamination level indicator
Automatic adjustment of alarm threshold
Long service life
Temperature range 0 – 60 °C

Duct smoke detector for fire dampers and smoke protection dampers
General building inspectorate licence Z-78.6-67
For airflow velocities from 1 – 20 m/s
Independent of the airflow direction
Airflow monitoring with warning for lower limit 2 m/s
Supply voltage 230 V AC, 50/60 Hz
Volt-free signal and alarm relays
Integral signal lamps
Contamination level indicator
Automatic adjustment of alarm threshold
Long service life
Temperature range 0 – 60 °C

Accessorio	Codice d'ordine
Rilevatore di fumo a canale	RM-O-3-D
Rilevatore di fumo a canale	RM-O-VS-D

The duct smoke detector must be ordered as a separate attachment and must be installed by others in the duct.

When used as an air transfer damper, the duct smoke detector is mounted on the FKRS-EU and supplied pre-wired.

Downloads

product information

Product data sheet – FKRS-EU

FKRS-EU_PD_2023_04_19_DE_en 3,2 MB pdf

certificates

Certificate concerning statistical leakage tests

LC_v1_2024_10_DE_en Certificate 660 KB pdf
Declaration of performance FKRS-EU

FKRS-EU_DoP_006_DoP_2023_12_DE_en 440 KB pdf
Declaration of hygiene conformity

FKRS-EU_HC_2024_05_DE_en Certificate 1,8 MB pdf
ATEX Certificate FKRS-EU

TROX_21TH0381_EPS-21-ATEX-2-142-X_en_0_signed Certificate 820 KB pdf
EU Declaration of conformity - ATEX - FKRS-EU

FKRS-EU_CE_ATEX_2022_01_25_DE_en Certificate 1,3 MB pdf
CE declaration of conformity

FKRS-EU_CE_2020_03_GB_en Certificate 300 KB pdf
Environmental Product Declaration FKRS-EU

FKRS-EU_EPD_2024_03_DE_en Environmental Product Declarations 410 KB pdf

operation manuals

Installation and operating manual - FKRS-EU

FKRS-EU_IOM_A00000092709_V2_2024_06_GB_en Installation and operating manual 28 MB pdf
Installation and operating manual short version – FKRS-EU

FKRS-EU_SV_IOM_A00000092711_V2_2024_06_GB_en Installation and operating manual 7,2 MB pdf
Additional installation manual Fire damper - FKRS-EU

FKRS-EU_ASYM_IM_CD10064_V2_2024_03_GB_en Additional installation manual 6,7 MB pdf
Supplementary Operating Manual Explosion-proof fire damper - FKRS-EU

FKRS-EU ATEX_A00000042247_V1_2023_04_GB_en Supplementary Operating Manual 850 KB pdf
Additional Manual – Conversion kits

A00000057380/11/2016 Additional Manual 970 KB pdf
Supplementary installation manual kit GL2

FKRS-EU_GL2_IM_A00000041590_V1_2023_04_GB_en Additional installation manual 2,5 MB pdf
Supplementary installation manual kit WE2

FKRS-EU_WE2_IM_A00000066481_V3_2023_04_GB_en Additional installation manual 9,6 MB pdf
Supplementary installation manual FKRS-EU – Sandwich panel walls

FKRS-EU_Steinschott_IM_A00000072076_V1_2023_11_GB_en Supplementary installation manual 1,6 MB pdf
Repair instructions FKRS-EU

FKRS-EU_OM_A00000082350_V4_2024_06_GB_en Repair instructions 3,6 MB pdf

Installation video

In the past, openings for the installation of fire dampers in solid walls or ceiling slabs had to be of the exact size; only minimal tolerances were allowed, if at all. This has changed with fire batt solutions as they provide a new level of flexibility. With a fire batt, fire dampers can in fact be installed in openings that are much larger than the fire damper casing – the perimeter gap may be up to 400 mm wide. It is no longer a strict requirement that an installation opening fits the fire damper exactly.

Installation video

Conversion kits are available to fit TROX fire dampers with a spring return actuator.

Type BLF230 (230 V AC)

Type BLF24 (24 V AC/DC)

Installation video

FKRS-EU Mounting limit switch

FKRS-EU- Converting a BLF actuator to an explosion-proof actuator

FKRS-EU- Converting a BLF actuator to BFL actuator

TROX Services

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FKRS-EU

COMPACT DIMENSIONS – IDEAL FOR RESTRICTED SPACES

general information

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

Dimensions, Accessories

Accessories 1 – installation block ER

Accessories 1 – installation kit TQ2

Accessories 1 – installation kit WA2

Accessories 1 – installation kit WE2

Accessories 1 – installation kit GL2

Accessories 2 – cover grille

Accessories 2 – flexible connector

Accessories 2 – extension piece

Attachment– limit switch

Attachment – spring return actuator

Attachment – spring return actuator in Ex construction

Attachment - spring return actuator and RM-O-3-D as air transfer damper

Attachment – Spring return actuator and TROXNETCOM

Attachment – Explosion-proof spring return actuator and TROXNETCOM

Attachment – Duct smoke detectors

Downloads

product information

Product data sheet – FKRS-EU

certificates

Certificate concerning statistical leakage tests

Declaration of performance FKRS-EU

Declaration of hygiene conformity

ATEX Certificate FKRS-EU

EU Declaration of conformity - ATEX - FKRS-EU

CE declaration of conformity

Environmental Product Declaration FKRS-EU

operation manuals

Installation and operating manual - FKRS-EU

Installation and operating manual short version – FKRS-EU

Additional installation manual Fire damper - FKRS-EU

Supplementary Operating Manual Explosion-proof fire damper - FKRS-EU

Additional Manual – Conversion kits

Supplementary installation manual kit GL2

Supplementary installation manual kit WE2

Supplementary installation manual FKRS-EU – Sandwich panel walls

Repair instructions FKRS-EU

Installation video

Installation video

Installation video

FKRS-EU Mounting limit switch

FKRS-EU- Converting a BLF actuator to an explosion-proof actuator

FKRS-EU- Converting a BLF actuator to BFL actuator

TROX Services

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE