Rf-t CR2 User manual

www.rft.be
en
Rf-Technologies nv Lange Ambachtstraat 40 9860 Oosterzele Belgium Tel [phone] Fax [phone] [email protected]
0749
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ets cou
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eu et
Volets de désenfuma
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Organisme Certi
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icateur
AFNOR Certi
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ication - www.marque-n
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C1-EN-I 09/2017
CR2
Circular fire damper for large diameters

2Table of content
Table of content
Declaration of performance 3
Product presentation CR2 4
Range and dimensions CR2 4
Evolution - kits 5
Options - at the time of order 9
Storage and handling 10
Installation 10
Installation at a minimal distance from another damper or from an adjacent supporting construction 11
Installation in rigid wall and floor 12
Installation in flexible wall (metal stud gypsum plasterboard wall) 13
Installation in flexible wall (metal stud gypsum plasterboard wall), sealing with gypsum 15
Installation in gypsum block wall 17
Installation in flexible and rigid wall, sealing with rigid rock wool boards with coating 18
Installation in rigid floor, sealing with rigid rock wool boards with coating 21
Inspection of the damper 23
Operation and mechanisms 24
Electrical connection 30
Weights 32
Selection graphs 33
Example 33
Selection data 33
Correction factor ΔL 34
Sample order 34
Approvals and certificates 34
Explanation of the abbreviations and pictograms
Wn = nominal width
Hn = nominal height
Dn = nominal diameter
E = integrity
I = thermal insulation
S = smoke leakage
Pa = pascal
ve = vertical wall penetration
ho = horizontal floor penetration
o -> i = meets the criteria from the outside
(o) to the inside (i)
i <-> o = fire side not important
V AC = Volt alternating current
V DC = Volt direct current
E.TELE = power supply magnet
E.ALIM = power supply motor
V = volt
W = watt
Auto = automatic
Tele = remote controlled
Pnom = nominal capacity
Pmax = maximum capacity
GKB (type A) / GKF (type F): "GKB" stands
for standard plasterboards (type A accor-
ding to EN 520) while "GKF" plasterboards
offer a higher fire resistance for a similar
plate thickness (type F according to EN
520)
Cal-Sil = calcium silicate
OP = option (delivered with the product)
KIT = kit (delivered separately for repair or
upgrade)
PG = connection flange to the duct
Sn = free air passage
ζ [-] = pressure loss coefficient
Q = air flow
∆P = static pressure drop
v = air speed in the duct
Lwa = A-weighted sound power level
Lw oct = sound power level per octave
midband
dB(A)a = A-weighted decibel value
∆L = correction factor
large dimensions
EN 1751
B/C
air tightness in accordance with EN 1751: class B (class C
in option )
suitable for built-in installation minimal distance allowed
BASTA OK
sealing with fire resistant stone wool boards allowed,
also for asymmetric opening

3
Declaration of performance
F-08/2017CE_DoP_Rf-t_C1_EN
DECLARATION OF PERFORMANCE Declarationofperformance CE_DoP_Rf-t_C1_EN F-08/2017
1. Unique identication code of the product-type: CR2 2. Intended use/es: Circular re damper to be used in conjunction with partitions to maintain re compartments in heating, ventilating and air conditioning installations. 3. Manufacturer: Rf-Technologies NV, Lange Ambachtstraat 40, B-9860 Oosterzele 4. System/s of AVCP: System 1 5. Harmonised standard / European Assessment Document; notied body / European
Technical Assessment, Technical Assessment Body, notied body; certicate of constancy of performance:
EN 15650:2010, BCCA with identication number 0749; BCCA-0749-CPR-BC1-606-0464-15650.01-2517
6. Declared performance according to EN 15650:2010 (Fire resistance according to EN 1366-2 and classications according to EN 13501-3)
Essential characteristics Performance Range Wall type Wall Sealing Installation Classication
Ø 200-630 mm Rigid wall Aerated concrete ≥ 100mm Mortar / Gypsum 1 EI 120 (vei no) S - (500 Pa)
Stone wool + coating ≥ 150 kg/m³ 1 EI 90 (vei no) S - (300 Pa)
Rigid oor Aerated concrete ≥ 150mm Mortar 2 EI 120 (hoi no) S - (500 Pa)
Stone wool + coating ≥ 150 kg/m³ 2 EI 120 (hoi no) S - (300 Pa)
Flexible wall Metal studs gypsum plasterboard Type A (EN 520) ≥ 100mm Stone wool ≥ 40 kg/m³ + cover plates 1 EI 60 (vei no) S - (500 Pa)
Gypsum 1 EI 60 (vei no) S - (500 Pa) Stone wool + coating ≥ 150 kg/m³ 1 EI 60 (vei no) S - (300 Pa)
Metal studs gypsum plasterboard Type F (EN 520) ≥ 100mm Stone wool ≥ 40 kg/m³ + cover plates 1 EI 90 (vei no) S - (300 Pa)
Gypsum 1 EI 120 (vei no) S - (500 Pa) Stone wool + coating ≥ 150 kg/m³ 1 EI 90 (vei no) S - (300 Pa)
Gypsum blocks ≥ 70mm Block glue 1 EI 120 (vei no) S - (500 Pa)
1 Type of installation: built-in, 0-360°. Minimal distances authorised with axis till 45°.
≥ 30mm
≤ 45°360° ≥ 30mm
2 Type of installation: built-in, 0-360°. Minimal distances authorised.
360° ≥ 30mm ≥ 30mm
Nominal activation conditions/sensitivity: Pass Response delay (response time): closure time Pass Operational reliability: cycling
CFTH - 50 cycles; MANO - 300 cycles; B(L) F(T) - 10000 cycles; BFL(T) - 10000 cycles; BFN(T) - 10000 cycles; ONE - 10000 cycles; UNIQ - 300 cycles
Durability of response delay: Pass Durability of operational reliability: Pass Protection against corrosion according to EN 60068-2-52: Pass Damper casing leakage according to EN 1751: ≥ class B
Harmonised standard
EN 15650:2010
The performance of the product identied above is in conformity with the set of declared performance/s.This declaration of performance is issued, in accordance with Regulation (EU) No 305/2011, under the sole responsibility of the manufacturer identi- ed above.
Signed for and on behalf of the manufacturer by:
Frank Verlinden, Product Manager
Oosterzele, 08/2017

4Product presentation CR2
Product presentation CR2
Circular fire damper available in the largest dimensions (up to a diameter of 630 mm) with a fire resistance up to 120 minutes. Its
refractory tunnel is made of galvanised steel and its blade consists of asbestos-free panels, which are resistant to humidity.
Fire dampers are installed where air ducts penetrate fire-resistant compartment walls. Their role is to restore the fire resistance grade
of the penetrated wall and to prevent smoke propagation. Fire dampers are distinguished by their degree of fire resistance, by their
aeraulic properties as well as by their installation ease. Rf-Technologies' fire dampers are all CE marked. They can be equipped with
various types of mechanisms depending on the specific needs linked to the project or to the local regulations.
5large dimensions
∎suitable for built-in installation
∎minimal distance allowed
∎suitable for rigid wall, rigid floor and light wall (metal stud
gypsum plasterboard wall, gypsum blocks)
∎sealing with fire resistant stone wool boards allowed, also for
asymmetric opening
∎air tightness in accordance with EN 1751: class B (class C in
option )
∎tested according to EN 1366-2 up to 500 Pa
∎operating mechanism outside the wall
∎maintenance-free
∎for indoor use
∎operating temperature: max. 50°C
EN 1751
B/C BASTA OK
1. casing in galvanised steel
2. damper blade
3. operating mechanism
4. sealing cold smoke
5. blade bumper
6. intumescent strip
7. fusible link
8. rubber sealing ring
9. product identification
1
2
4
5
6
7
8
3
9
Range and dimensions CR2
Exceeding blade: X = on the mechanism side, Y = on the wall side
X375 Y
230
50
ØDn-2
145
ØDn [mm] 315 355 400 450 500 560 630
x - - - - - 15 50
y 24 44 66 91 116 146 181
ØDn [mm] 200 250 315 355 400 450 500 560 630

5
Evolution - kits
Ø Dn < 315 mm Ø Dn < 315 mm
ØDn P
Z
Q
ØDn P
Z
Q
CFTH ONE BFL(T) UNIQ
P81 105 101 115
Q182 199 110 298
Z58 60 80 60
CFTH ONE BFL(T) BFN(T) UNIQ
P85 105 104 104 115
Q182 199 110 110 298
Z156 157 179 179 157
Evolution - kits
KITS CFTH Automatic unlocking mechanism CFTH with FCU and without FTH 72
KITS MANO EVO Upgradeable automatically unlocking mechanism
KITS BFL24 Spring return actuator BFL 24V
KITS BFL24-ST Spring return actuator BFL 24V with plug (ST)
KITS BFLT24 Spring return actuator BFL 24V with thermo-electric fuse (T)
KITS BFLT24-ST Spring return actuator BFL 24V with thermo-electric fuse (T) and plug (ST)

6Evolution - kits
KITS BFL230 Spring return actuator BFL 230V
KITS BFLT230 Spring return actuator BFL 230V with thermo-electric fuse (T)
KITS BFN24 Spring return actuator BFN 24V (BFN kits must be used instead of BFL kits for fire dampers
produced before 1/7/2015)
KITS BFN24 Spring return actuator BFN 24V
KITS BFN24-ST Spring return actuator BFN 24V with plug (ST)
KITS BFNT24 Spring return actuator BFN 24V with thermo-electric fuse (T)
KITS BFNT24-ST Spring return actuator BFN 24V with thermo-electric fuse (T) and plug (ST)
KITS BFN230 Spring return actuator BFN 230V
KITS BFNT230 Spring return actuator BFN 230V with thermo-electric fuse (T)

7
Evolution - kits
KITS BF24 Spring return actuator BF 24V (BF kits must be used instead of BFN kits for fire dampers
produced before 1/7/2015)
KITS ONE T 24 FDCU Spring return actuator ONE 24V (with fusible link T) + unipolar beginning- and end-of-ran-
ge switch
KITS ONE T 24 FDCB Spring return actuator ONE 24V (with fusible link T) + bipolar beginning- and end-of-ran-
ge switch
KITS ONE T 230 FDCU Spring return actuator ONE 230V (with fusible link T) + unipolar beginning- and end-of-
range switch
KITS ONE T 230 FDCB Spring return actuator ONE 230V (with fusible link T) + bipolar beginning- and end-of-ran-
ge switch
UNIQ VD/VM FDCU Operating mechanism UNIQ (with fusible link) + unipolar beginning- and end-of-range
switch
UNIQ VD/VM FDCB Operating mechanism UNIQ (with fusible link) + bipolar beginning- and end-of-range
switch
KITS VD24 MAN EVO FDCU Natural magnet 24 V DC + FDCU
KITS VD48 MAN EVO FDCU Natural magnet 48 V DC + FDCU
KITS VM24 MAN EVO FDCU Electromagnet 24 V DC + FDCU

8Evolution - kits
KITS VM48 MAN EVO FDCU Electromagnet 48 V DC + FDCU
KITS FDC CFTH 1 Beginning or end of range switch FCU/DCU/FCB/DCB
KITS FDCU MAN Unipolar beginning and end of range switch
KITS FDCB MAN Bipolar beginning and end of range switch
KITS SN2 BFL/BFN Bipolar beginning and end of range switch
KITS ME MANO EVO Resetting motor ME 24V/48V (AC, DC)
KITS ME UNIQ Resetting motor ME 24V/48V (AC, DC)
KITS FTH72 Fusible link FTH 72°C (for CFTH)
KITS FT72 MANO EVO Fusible link FTH 72°C
KITS ZBAT 72 Black spare part for thermo-electric fuse for BFLT/BFNT

9
Options - at the time of order
FUS72 ONE Fusible link 72°C
FUS72 UNIQ Fusible link 72°C
MECT Testbox for mechanisms 24/48 V (magnet, motor, beginning and end of range switches)
EPP CR2 Kit with 4 cover plates (gypsum plasterboard 12.5 mm) for CR2 in light wall.
INSPECAM
Sturdy digital endoscope for the internal inspection of fire dampers through an optional
inspection opening. The endoscope features a 1 meter long probe with a diameter of 8,2
mm equipped with a dimmable LED, a removable 4x zoom, a colour LCD monitor 3.5”.
Photographic capture 3MP and video capture 720P.
Options - at the time of order
UL Inspection opening to visually determine the state and the position of the damper, by
using an endoscope.
EN 1751
C
EN1751_C Air-tightness class C (note: for CU2 H>600 or W>800 / for CR2 Ø>315).

10 Storage and handling
Storage and handling
As this product is a safety element, it should be stored and handled with care.
Avoid:
• any kind of impact or damage
• contact with water
• deformation of the casing
It is recommended:
• to unload in a dry area
• not to flip or roll the product to move it
• not to use the damper as a scaffold, working table, etc.
• not to store smaller dampers inside larger ones
Installation
General points
∎The installation must comply with the installation manual delivered with the product and the classification report.
∎Axis orientation: see the declaration of performance.
∎Avoid obstruction of adjoining ducts.
∎Product installation: always with closed damper blade.
∎Verify if the blade can move freely.
∎Please observe safety distances with respect to other construction elements. The operating mechanism must also remain accessi-
ble: allow for a clearance of 200 mm around the housing.
∎The air tightness class will be maintained if the damper is installed according to the installation manual.
∎Rf-t fire dampers are always tested in standardised constructions according to EN 1366-2. The achieved results are valid for similar
supporting constructions with a fire resistance, thickness and density equal or superior to the supporting construction used
during the test.
∎The damper must remain accessible for inspection and maintenance.
∎Schedule at least two running checks each year.
2015
2016
2017
2018
2019
TEST
 | 
 | 
 | 
 | 
 | 

11
Installation
Installation at a minimal distance from another damper or from an adjacent supporting construction
≥ 75mm
≥ 75mm ≥ 200mm ≥ 200mm
≥ 30mm ≥ 30mm ≥ 200mm
≥ 30mm
1. Principle
According to the European test standard, a fire damper must
be installed at a minimum distance of 75 mm from an adjacent
wall and 200 mm from another damper, unless the solution was
tested at a shorter distance. This range of Rf-t fire dampers has
been successfully tested and can be installed in a vertical or
horizontal supporting construction, at a distance below the mi-
nimum set by the standard. For circular dampers, the minimal
distance is set to 30 mm.
A
B
2. Certified solution
For the Rf-t fire dampers, the solution consists of the following
elements: A: Universal sealing for minimal distance; B: Sealing
compliant with existing classifications (Declaration of Perfor-
mance). A. Sealing of the opening at the side with minimal
distances between damper and wall/ceiling: rigid stone wool
panels (150 kg/m³) are applied to a depth of 400 mm (for a
wall of 100mm for instance: 100mm in the wall + 150 mm on
each side of the wall). The surface of this sealing is set between
the axes (centres) of the dampers. B. Sealing of the rest of the
opening according to the existing classifications for the fire
damper (Declaration of Performance). This sealing is therefore
also applied between circular dampers that are mounted at
a minimum distance from one another (30 to 200 mm) but at
a distance greater than 75 mm from a wall/ceiling. Details for
each wall/sealing combination are given under the correspon-
ding title of this installation guide.
30mm
30mm
30mm
200
mm
max 45°
max 45°
3. Restrictions
In a vertical wall, the orientation of the blade axis should be
horizontal or oriented at a maximum of 45°.
A maximum of 3 circular dampers can be installed at a mini-
mum distance from one another, both vertically and horizontal-
ly (with a maximum cluster of 4 dampers).
Note: when sealing the opening with panels of fire resistant
stone wool, the maximum number of dampers also depends
on the maximum “blank seal” allowed for the selected sealing
material. Please refer to the manufacturer’s instructions for this
information.
1 2
3

12 Installation
Installation in rigid wall and floor
The product was tested and approved in:
Range Wall type Sealing Classication
Ø 200-630 mm Rigid wall Aerated concrete ≥ 100mm Mortar / Gypsum EI 120 (vei no) S - (500 Pa)
Ø 200-630 mm Rigid oor Aerated concrete ≥ 150mm Mortar EI 120 (hoi no) S - (500 Pa)
230
375
≥100
≥ ØDn+ 80mm
≥100
≥150
Gips / Mortel
Mortel
TEST!
B < 200mm
40
≥ 30
≥ 30
B
≥ 30
40
3. The dampers can be installed at a minimum distance (≥ 30
mm) from an adjacent wall or from another damper.
≥100
4. Make the necessary openings (Dn + 80 mm) in the wall.
1 2
3 4

13
Installation
400mm
≥150kg/m³
5. Mount the dampers in the opening.
Apply rigid stone wool panels (150 kg/m³) to a depth of 400
mm (150 mm on each side of the wall) to seal the opening at
the side with minimal distances.
The surface of this sealing is set between the axes (centres) of
the dampers.
Caution: the opening is sealed according to the existing
classification (see next point) when:
- 2 fire dampers are installed at a minimum distance from one
another but at a normal distance (≥ 75 mm) from the wall or
floor/ceiling.
- One single (no cluster) fire damper is located at a minimum
distance (≤ 75 mm) from a wall or floor/ceiling.
Gips / Mortel
Mortel
6. Seal the rest of the opening with standard mortar or gypsum
(only for vertical walls).
Installation in flexible wall (metal stud gypsum plasterboard wall)
The product was tested and approved in:
Range Wall type Sealing Classication
Ø 200-630 mm Flexible wall Metal studs gypsum plasterboard Type F (EN 520) ≥ 100mm Stone wool ≥ 40 kg/m³ + cover plates EI 90 (vei no) S - (300 Pa)
Ø 200-630 mm Flexible wall Metal studs gypsum plasterboard Type A (EN 520) ≥ 100mm Stone wool ≥ 40 kg/m³ + cover plates EI 60 (vei no) S - (500 Pa)
≥ 40kg/m³
50
2x12.5 / 1x25mm
ØDn+50mm
ØDn+50mm
60’
90’
F (EN520)/GKF
A (EN520)/GKB
ØDn+200mm
230mm
ØDn+200mm
ØDn+5mm
5 6
1 2

14 Installation
≥ 40kg/m³
1.
3.
2.
M6
JointFiller
TEST!
40
A
A
A
A
40mm
≥ 30
≥ 30
≤ 600mm
B
A
A
A A
≥ 30
A 25mm
B < 200mm
≥ 30
40
5. The dampers can be installed at a minimum distance (≥ 30
mm) from an adjacent wall or from another damper.
50
50
2x12.5 / 1x25mm
≥ 40kg/m³
6. Build the drywall and foresee horizontal and vertical studs
around the opening. In the opening around the dampers (Dn
+ 50 mm), the void between the gypsum boards is filled with
stone wool with a minimum density of 40 kg/m³.
3 4
5 6

15
Installation
400mm
≥150kg/m³
7. Mount the dampers in the opening.
Apply rigid stone wool panels (150 kg/m³) to a depth of 400
mm (150 mm on each side of the wall) to seal the opening at
the side with minimal distances.
Caution: the opening is sealed according to the existing
classification (see next point) when:
- 2 fire dampers are installed at a minimum distance from one
another but at a normal distance (≥ 75 mm) from the wall or
floor/ceiling.
- One single (no cluster) fire damper is located at a minimum
distance (≤ 75 mm) from a wall or floor/ceiling.
≥ 40kg/m³
8. Seal the rest of the opening with standard stone wool 40 kg/
m³ across the entire wall thickness.
ØDn+5mm
ØDn+200mm
Gips JointFiller
9. Apply cover plates (gypsum plasterboards) to finish the surfa-
ce at both sides. Seal off the space between the plasterboards
with jointfiller.
Installation in flexible wall (metal stud gypsum plasterboard wall), sealing with gypsum
The product was tested and approved in:
Range Wall type Sealing Classication
Ø 200-630 mm Flexible wall Metal studs gypsum plasterboard Type A (EN 520) ≥ 100mm Gypsum EI 60 (vei no) S - (500 Pa)
Ø 200-630 mm Flexible wall Metal studs gypsum plasterboard Type F (EN 520) ≥ 100mm Gypsum EI 120 (vei no) S - (500 Pa)
7 8
9

16 Installation
ØDn+80mm
≤ 600mm
50
2x12.5 /
1x25mm
≥ 40kg/m³
ØDn+
80 mm
ØDn+
80 mm
230mm
Gips
40
40
A
A
A
A
A
A A
A
40mm
≥ 30
≥ 30
≥ 30
≤ 600mm
A 60-80mm
B < 200mm
B
≥ 30
3. The dampers can be installed at a minimum distance (≥ 30
mm) from an adjacent wall or from another damper.
50
50
2x12.5 / 1x25mm
≥ 40kg/m³
4. Build the drywall and foresee horizontal and vertical studs
around the opening. In the opening around the dampers, the
void between the gypsum boards is partially filled (up to Dn +
40 mm) with stone wool with a minimum density of 40 kg/m³.
1 2
3 4

17
Installation
400mm
≥150kg/m³
5. Mount the dampers in the opening.
Apply rigid stone wool panels (150 kg/m³) to a depth of 400
mm (150 mm on each side of the wall) to seal the opening at
the side with minimal distances.
The surface of this sealing is set between the axes (centres) of
the dampers.
Caution: the opening is sealed according to the existing
classification (see next point) when:
- 2 fire dampers are installed at a minimum distance from one
another but at a normal distance (≥ 75 mm) from the wall or
floor/ceiling.
- One single (no cluster) fire damper is located at a minimum
distance (≤ 75 mm) from a wall or floor/ceiling.
Gips
6. Seal the rest of the opening (40 mm) with standard gypsum
across the entire wall thickness.
Installation in gypsum block wall
The product was tested and approved in:
Range Wall type Sealing Classication
Ø 200-630 mm Flexible wall Gypsum blocks ≥ 70mm Block glue EI 120 (vei no) S - (500 Pa)
230
375
≥70
≥ ØDn+80mm
Blokkencol
TEST!
5 6
1 2

18 Installation
40
B < 200mm
40
≥ 30
≥ 30
B
≥ 30
3. The dampers can be installed at a minimum distance from an
adjacent wall or from another damper.
≥70
4. Make the necessary openings (Dn + 80 mm) in the wall.
400mm
≥150kg/m³
5. Mount the dampers in the opening.
Apply rigid stone wool panels (150 kg/m³) to a depth of 400
mm (150 mm on each side of the wall) to seal the opening at
the side with minimal distances.
The surface of this sealing is set between the axes (centres) of
the dampers.
Caution: the opening is sealed according to the existing
classification (see next point) when:
- 2 fire dampers are installed at a minimum distance from one
another but at a normal distance (≥ 75 mm) from the wall or
floor/ceiling.
- One single (no cluster) fire damper is located at a minimum
distance (≤ 75 mm) from a wall or floor/ceiling.
Blokkenlijm
6. Seal the rest of the opening (40 mm) with block glue across
the entire wall thickness.
Installation in flexible and rigid wall, sealing with rigid rock wool boards with coating
The product was tested and approved in:
Range Wall type Sealing Classication
Ø 200-630 mm Rigid wall Aerated concrete ≥ 100mm Stone wool + coating ≥ 150 kg/m³ EI 90 (vei no) S - (300 Pa)
Ø 200-630 mm Flexible wall Metal studs gypsum plasterboard Type A (EN 520) ≥ 100mm Stone wool + coating ≥ 150 kg/m³ EI 60 (vei no) S - (300 Pa)
Ø 200-630 mm Flexible wall Metal studs gypsum plasterboard Type F (EN 520) ≥ 100mm Stone wool + coating ≥ 150 kg/m³ EI 90 (vei no) S - (300 Pa)
3 4
5 6

19
Installation
50
2x12.5 / 1x25mm
≤ 300
≤ 300
≤ ØDn+600
≤ ØDn+600
60’
90’
90’
100mm ≥ 40kg/m³
F (EN520)
A (EN520)
1. The opening around the damper is sealed with 2 layers of 50
mm-thick mineral wool panels with fire resistant coating on
one side (type PROMASTOP-CB 50 / PROMASTOP-CB/CC 50 /
HILTI CFS-CT B).
PROMASTOP-E / CC
HILTI CFS-S ACR
150kg/m³
PROMASTOP-CB 50 (CC)
/ HILTI CFS-CT B
≤ 300
≤ 300
PROMASTOP-E / CC
HILTI CFS-S ACR
3. The joints on these 2 layers must be installed staggered and
covered all around the edge with coating (type PROMASTOP-E /
PROMASTOP-CC / HILTI CFS-S-ACR).
PROMASTOP-E / CC
HILTI CFS-S ACR
F (EN520)
A (EN520) 60’
90’
2x50 mm
TEST!
120’ (BELGIUM)
F (EN520)
2x60 mm
TEST!
1 2
3 4
5 6

20 Installation
≤ 400
≤ 300
≤ 400
≤ 300
≤ Øn+600
≤ Øn+600
7. The damper does not need to be centered in the opening
(with max dimensions fire damper + 600 mm). The maximal
distance between the damper and the edge of the opening is
400 mm.
2
A
A
A
≥ 30
40mm
≤ 600mm
B
A ≤ 300mm
B < 200mm
≥ 30
≥ 30
Promat : HxW ≤3,75m²
Hilti EI90: HxW ≤3,20m²
Hilti EI120: HxW ≤1,44m²
W
H
8. The dampers can be installed at a minimum distance (≥ 30
mm) from an adjacent wall or from another damper.
2
A
A
A
A
40mm
≤ 600mm
A 200 - 400mm
B < 200mm
≥ 30
50
2x12.5 / 1x25mm
F (EN520)
A (EN520)
100mm
10. Build the drywall and foresee horizontal and vertical studs
around the opening. Mount the dampers in the opening.
7 8
9 10