Rf-t CU2 User manual

www.rft.be
en
Rf-Technologies nv Lange Ambachtstraat 40 9860 Oosterzele Belgium Tel [phone] Fax [phone] [email protected]
0749
C2-EN-J 06/2018
CU2
Wide-ranging rectangular re damper up to 120’

2Table of content
Table of content
Declaration of performance 4
Product presentation CU2 5
Range and dimensions CU2 6
Variant CU2L 6
Range and dimensions CU2L 6
Variant CU2 ATEX 7
Range and dimensions CU2 ATEX 7
Variant CU2L ATEX 7
Range and dimensions CU2L ATEX 8
Evolution - kits 8
Options - at the time of order 11
Flange types - at the time of order 11
Storage and handling 13
Installation 13
Installation at a minimal distance from another damper or from an adjacent supporting construction 14
Installation in rigid wall and floor 15
Installation in flexible wall (metal stud gypsum plasterboard wall) 17
Installation in flexible wall (metal stud gypsum plasterboard wall), sealing with gypsum 19
Installation in gypsum block wall 21
Installation in flexible and rigid wall, sealing with rigid rock wool boards with coating 23
Installation in rigid floor, sealing with rigid rock wool boards with coating 26
Installation in shaft wall 27
Battery assembly 28
Operation and mechanisms 29
Electrical connection 34
Weights 36
Selection graphs 43
Example 44
Selection data 45
Correction factor ΔL 56
Sample order 57
Approvals and certificates 57

3
Explanation of the abbreviations and pictograms
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 battery assembly tested in rigid wall
EN 1751
B/C
air tightness in accordance with EN 1751: class B (class C
in option )
suitable for built-in installation
intermediate dimensions on request minimal distance allowed
BASTA OK
sealing with fire resistant stone wool boards allowed,
also for asymmetric opening
ATEX certificate TÜV 14 ATEX 7540 X

4Declaration of performance
H-05/2018CE_DoP_Rf-t_C2_EN
DECLARATION OF PERFORMANCE Declarationofperformance CE_DoP_Rf-t_C2_EN H-05/2018
1. Unique identication code of the product-type: CU2 2. Intended use/es: Rectangular 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-0749-CPR-BC1-606-0464-15650.03-0464; BCCA-0749-CPR-BC1-606-0464-15650.13-2517
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
200x200 mm ≤ CU2 ≤ 1200x800 mm Rigid wall Aerated concrete ≥ 100 mm Mortar 1 EI 120 (vei no) S - (500 Pa)
Gypsum 1 EI 90 (vei no) S - (500 Pa) Stone wool + coating ≥ 140 kg/m³ 1 EI 90 (vei no) S - (300 Pa)
Flexible wall Metal studs gypsum plasterboard Type A (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates 2 EI 90 (vei no) S - (500 Pa)
Gypsum 2 EI 90 (vei no) S - (500 Pa) Stone wool + coating ≥ 140 kg/m³ 1 EI 60 (vei no) S - (300 Pa)
Metal studs gypsum plasterboard Type F (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates 2 EI 90 (vei no) S - (500 Pa)
Gypsum 1 EI 90 (vei no) S - (500 Pa) Stone wool + coating ≥ 140 kg/m³ 1 EI 90 (vei no) S - (300 Pa)
Gypsum blocks ≥ 70 mm Block glue 2 EI 120 (vei no) S - (500 Pa)
Rigid oor Aerated concrete ≥ 150 mm Mortar 1 EI 120 (hoi no) S - (500 Pa)
Stone wool + coating ≥ 140 kg/m³ 1 EI 90 (hoi no) S - (300 Pa)
200x200 mm ≤ CU2 ≤ 1500x1000 mm Rigid wall Aerated concrete ≥ 100 mm Mortar / Gypsum 1 EI 60 (vei no) S - (500 Pa)
1E 120 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Rigid wall Aerated concrete ≥ 100 mm Mortar / Gypsum 1 EI 90 (vei no) S - (300 Pa)
Flexible wall Metal studs gypsum plasterboard Type F (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates 2 EI 90 (vei no) S - (300 Pa)
2E 120 (vei no) S - (300 Pa)
Gypsum 2 EI 90 (vei no) S - (300 Pa)
2E 120 (vei no) S - (300 Pa)
Asymmetrical exible wall (shaft wall) Metal studs gypsum plasterboard Type F (EN 520) ≥ 82.5 mm Stone wool ≥ 40 kg/m³ + cover plates 2 EI 60 (vei no) S - (300 Pa) Rigid oor Aerated concrete ≥ 125 mm Mortar 1 EI 120 (hoi no) S - (300 Pa)
1 Type of installation: built-in 0/90/180/270°.
Minimal distances authorised.
≥ 25 mm
≥ 50 mm
≥ 50 mm
2 Type of installation: built-in 0/180°.
Minimal distances authorised.
≥ 25 mm
≥ 50 mm
≥ 50 mm
Essential characteristics Performance
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 - 10000 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, 05/2018

5
Product presentation CU2
Product presentation CU2
Rectangular fire damper available in the largest dimensions, with battery conform to the European norm up to 3050x1650 mm. Fire
resistance up to 120 minutes. The refractory casing is made of asbestos-free panels, which are resistant to humidity. Its many options
make the CU2 damper a universal reference on the market.
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
5many options and variants
5battery assembly tested in rigid wall
5model available for use in potentially explosive atmospheres
∎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
∎intermediate dimensions on request
EN 1751
B/C BASTA OK
1. connection flange PG30
2. casing made of refractory material
3. damper blade
4. operating mechanism
5. sealing cold smoke
6. blade bumper
7. intumescent strip
8. transmission with locking (open/closed)
9. fusible link
10.product identification
4
3
10
2
8
9
6
5
7
1

6Range and dimensions CU2
Range and dimensions CU2
Wn/Hn per step of 50 mm; intermediate dimensions are subject to extra cost (heights between ≥275 and ≤299 mm are not possible).
Exceeding blade: X = on the mechanism side, Y = on the wall side
YX
45
400
240
(Wn-6)x(Hn-6)
(Wn+24)x(Hn+24)
Hn [mm] 300 350 400 450 500 550 600 650 700 750
x - - - - - 1 26 51 76 101
y 2 27 52 77 102 127 152 177 202 227
Hn [mm] 800 850 900 950 1000
x 126 151 176 201 226
y 252 277 302 327 352
≥ ≤
(Wn x Hn) mm 200x200 1500x1000
Variant CU2L
Damper with a tunnel casing extension at one or both sides so that the damper blade does not exceed the tunnel. This version allows
to connect a grill or a bend directly on the damper flange or to use a circular connection.
∎extension: a=Hn/2-230 mm (on the side of the mechanism);
b=Hn/2-100 mm (on the wall side)
1. connection flange PG30
2. casing made of refractory material
3. damper blade
4. operating mechanism
5. sealing cold smoke
6. blade bumper
7. intumescent strip
8. transmission with locking (open/closed)
9. fusible link
10.product identification
5
3
26
4
7
1
8
9
10
Range and dimensions CU2L
Wn/Hn per step of 50 mm; intermediate dimensions are subject to extra cost (heights between ≥275 and ≤299 mm are not possible).
Exceeding blade: X = on the mechanism side, Y = on the wall side
227,5+a102,5+b
X
45
L=330+a+b
Y
(Wn-6)x(Hn-6)
≥ ≤
(Wn x Hn) mm 200x200 1500x1000

7
Variant CU2 ATEX
Variant CU2 ATEX
Explosion protected fire damper for use in zone 1,2 (gas) and zone 21,22 (combustible dust). The option is available on all dimensions
of the CU2.
5ATEX certificate TÜV 14 ATEX 7540 X
1. explosion proof mechanism
2. equipotential connection
1
2
Range and dimensions CU2 ATEX
Wn/Hn per step of 50 mm; intermediate dimensions are subject to extra cost (heights between ≥275 and ≤299 mm are not possible).
Exceeding blade: X = on the mechanism side, Y = on the wall side
YX
45
400
240
(Wn-6)x(Hn-6)
(Wn+24)x(Hn+24)
Hn [mm] 300 350 400 450 500 550 600 650 700 750
x - - - - - 1 26 51 76 101
y 2 27 52 77 102 127 152 177 202 227
Hn [mm] 800 850 900 950 1000
x 126 151 176 201 226
y 252 277 302 327 352
≥ ≤
(Wn x Hn) mm 200x200 1500x1000
Variant CU2L ATEX
Explosion protected fire damper for use in zone 1,2 (gas) and zone 21,22 (combustible dust) with a tunnel casing extension at one
or both sides so that the damper blade does not exceed the tunnel. This extension makes it possible to use a circular connection (PR
flange).
5ATEX certificate TÜV 14 ATEX 7540 X
∎extension: a=Hn/2-230 mm (on the side of the mechanism);
b=Hn/2-100 mm (on the wall side)
102,5+b
45
227,5+a
yx
L=330+a+b
(Hn-6) x (Wn-6)

8Range and dimensions CU2L ATEX
Range and dimensions CU2L ATEX
Wn/Hn per step of 50 mm; intermediate dimensions are subject to extra cost (heights between ≥275 and ≤299 mm are not possible).
Exceeding blade: X = on the mechanism side, Y = on the wall side
102,5+b
45
227,5+a
yx
L=330+a+b
(Hn-6) x (Wn-6)
≥ ≤
(Wn x Hn) mm 200x200 1500x1000
Hn < 300 mm Hn ≥ 300 mm
P
Z
Q
Wn P
ZQ
Wn
CFTH ONE BFL(T) E/RMEX(T)
P78 104 96 118
Q180 191 110 95
Z62 47 74 72,5
CFTH ONE BFL(T) BFN(T) E/RMEX(T)
P78 104 96 100 118
Q180 191 110 110 95
Z157 147 180 180 167,5
Evolution - kits
KITS CFTH Automatic unlocking mechanism CFTH with FCU and without FTH 72
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)

9
Evolution - kits
KITS BFLT24-ST Spring return actuator BFL 24V with thermo-electric fuse (T) and plug (ST)
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

10 Evolution - kits
KITS BFNT230 Spring return actuator BFN 230V with thermo-electric fuse (T)
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
KITS FDC CFTH 1 limit switch (FCU/DCU/FCB/DCB)
KITS SN2 BFL/BFN Auxiliary limit switch 'open/closed'
KITS FTH72 Fusible link FTH 72°C (for CFTH)
KITS ZBAT 72 Black spare part for thermo-electric fuse for BFLT/BFNT

11
Options - at the time of order
FUS72 ONE Fusible link 72°C
MECT Testbox for mechanisms 24/48 V (magnet, motor, beginning and end of range switches)
KITS EQ Kit equipotential connection (per set of 5 pieces)
Options - at the time of order
UL Inspection shutter (set of 2)
EQ Equipotential connection
EN 1751
C
EN1751_C Air-tightness class C (note: for CU2 H>600 or W>800 / for CR2 Ø>315).
Flange types - at the time of order
33
30 30
3333
400
HnxWn
(Hn-6)x(Wn-6)
PG30
Connection to ducts with 30 mm flanges (either by sliding profile,
or with bolts, or with clamps).
Elliptical holes Ø 8,5 x 16 mm.
43 43
400
4040
43
HnxWn
(Hn-6)x(Wn-6)
PG40 Connection to ducts with 40 mm flanges.
Elliptical holes Ø 8,5 x 16 mm.

12 Flange types - at the time of order
23
2020
400
23 23
HnxWn
(Hn-6)x(Wn-6)
PG20 Connection to ducts with 20 mm flanges.
Elliptical holes Ø 6,5 x 16 m.
40
HnxWn
(Hn-6)x(Wn-6)
L-70
PM Connection to ducts by insertion. This type of frame is used in
case of lack of space for a standard PG30 frame.
(Hn-6)x(Wn-6)
+L-70
PP No connection. This type of frame is used on one side of a dam-
per that ends into a room.
Øn-2
e L
L1
e
n+30
PRJ Circular connection with rubber sealing ring.
210
W+62
H+62
PPT Grill. Very well suited as protection grill on the end piece of a duct
system.

13
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
 | 
 | 
 | 
 | 
 | 

14 Installation
Installation at a minimal distance from another damper or from an adjacent supporting construction
≥ 75 mm
≥ 75 mm ≥ 200 mm ≥ 200 mm
≥ 50 mm ≥ 50 mm ≥ 200 mm
≥ 25 mm
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 construc-
tion, at a distance below the minimum set by the standard.
For rectangular dampers, the minimal distance is set to 50 mm
between 2 dampers or between a damper and a vertical wall,
and to 25 mm between a damper and a floor/ceiling.
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
100 mm for instance: 100 mm in the wall + 150 mm on each
side of the wall).
This sealing is applied over the whole width/height of the
damper(s).
When the damper is installed at a distance of 25 mm from a
floor/ceiling, the rigid high-density stone wool panels (A) may
be replaced with standard 40 kg/m³ stone wool, compressed by
at least 40%.
B. Sealing of the rest of the opening according to the existing
classifications for the fire damper (Declaration of Performance).
Details for each wall/sealing combination are given under the
corresponding title of this installation guide.
50 mm
25 mm
200 mm
3. Restrictions
The installer may choose the direction of the blade axis freely:
horizontal or vertical axis.
A maximum of 2 rectangular dampers can be installed at a mi-
nimum distance from one another, both vertically and horizon-
tally (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

15
Installation
Installation in rigid wall and floor
The product was tested and approved in:
Range Wall type Sealing Classication
200x200 mm ≤ CU2 ≤ 1200x800 mm Rigid wall Aerated concrete ≥ 100 mm Mortar EI 120 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x1000 mm Rigid wall Aerated concrete ≥ 100 mm Mortar / Gypsum EI 60 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x1000 mm Rigid wall Aerated concrete ≥ 100 mm Mortar / Gypsum E 120 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Rigid wall Aerated concrete ≥ 100 mm Mortar / Gypsum EI 90 (vei no) S - (300 Pa)
200x200 mm ≤ CU2 ≤ 1200x800 mm Rigid oor Aerated concrete ≥ 150 mm Mortar EI 120 (hoi no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Rigid oor Aerated concrete ≥ 125 mm Mortar EI 120 (hoi no) S - (300 Pa)
200x200 mm ≤ CU2 ≤ 1200x800 mm Rigid wall Aerated concrete ≥ 100 mm Gypsum EI 90 (vei no) S - (500 Pa)
400
240
≥100
≥150 mm:≤1200x800:120’(500 Pa)
≥125 mm:≤1500x800:120’(300 Pa)
≥100
≥Hn+100
≥Wn+100
Plaster / Mortar
Mortar
!
TEST! ≥ 50
≥ 50
≥ 25
50
50
≥ 200
4. The dampers can be installed at a minimum distance from an
adjacent floor/ceiling (≥ 25 mm), from an adjacent wall or from
another damper (≥ 50 mm).
1 2
3 4

16 Installation
≥100
5. Make the necessary openings (Wn + 100 mm) x
(Hn + 100 mm) in the wall.
400 mm
≥150 kg/m³
rockfit 431
40 mm
≤60%
≥150 kg/m³
6. 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.
This sealing is applied over the whole width/height of the
damper(s).
When the damper is installed at a distance of 25 mm from a
floor/ceiling, the rigid high-density stone wool panels may
be replaced with standard 40 kg/m³ stone wool (Rockfit 431),
compressed by at least 40%.
Plaster / Mortar
Mortar
7. Seal the rest of the opening with standard mortar or gypsum
(only for vertical walls).
5 6
7

17
Installation
Installation in flexible wall (metal stud gypsum plasterboard wall)
The product was tested and approved in:
Range Wall type Sealing Classication
200x200 mm ≤ CU2 ≤ 1200x800 mm Flexible wall Metal studs gypsum plasterboard
Type A (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates EI 90 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Flexible wall Metal studs gypsum plasterboard
Type F (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates EI 90 (vei no) S - (300 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Flexible wall Metal studs gypsum plasterboard
Type F (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates E 120 (vei no) S - (300 Pa)
200x200 mm ≤ CU2 ≤ 1200x800 mm Flexible wall Metal studs gypsum plasterboard
Type F (EN 520) ≥ 100 mm Stone wool ≥ 40 kg/m³ + cover plates EI 90 (vei no) S - (500 Pa)
1.
≥ 40 kg/m³
2x12.5 / 1x25 mm
50
Hn+100
Wn+100
240
Wn+200mm
Hn+200mm
1.
3.
2.
1.
≥ 40 kg/m³
TEST!
≥ 50
≥ 50
≥ 25
≤ 600 mm
≥ 200
50
50
5. The dampers can be installed at a minimum distance from an
adjacent floor/ceiling (≥ 25 mm), from an adjacent wall or from
another damper (≥ 50 mm).
50
2x12.5 / 1x25 mm
6. Build the drywall and foresee horizontal and vertical studs
around the opening.
1 2
3 4
5 6

18 Installation
400 mm
≥150 kg/m³
rockfit 431
40 mm
≤60%
≥150 kg/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.
This sealing is applied over the whole width/height of the
damper(s).
When the damper is installed at a distance of 25 mm from a
floor/ceiling, the rigid high-density stone wool panels may
be replaced with standard 40 kg/m³ stone wool (Rockfit 431),
compressed by at least 40%.
≥ 40 kg/m³
8. Seal the rest of the opening with standard stone wool
40 kg/m³ across the entire wall thickness.
Ln+200 mm
9. Apply cover plates (gypsum plasterboards) to finish the
surface at both sides.
Seal off the space between the plasterboards with jointfiller.
7 8
9

19
Installation
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
200x200 mm ≤ CU2 ≤ 1200x800 mm Flexible wall Metal studs gypsum plasterboard
Type A (EN 520) ≥ 100 mm Gypsum EI 90 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1200x800 mm Flexible wall Metal studs gypsum plasterboard
Type F (EN 520) ≥ 100 mm Gypsum EI 90 (vei no) S - (500 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Flexible wall Metal studs gypsum plasterboard
Type F (EN 520) ≥ 100 mm Gypsum EI 90 (vei no) S - (300 Pa)
200x200 mm ≤ CU2 ≤ 1500x800 mm Flexible wall Metal studs gypsum plasterboard
Type F (EN 520) ≥ 100 mm Gypsum E 120 (vei no) S - (300 Pa)
≤ 600 mm
50
2x12.5 / 1x25 mm
≥ 40 kg/m³
≥100 mm
≥100 mm
≥100 mm
≥100 mm
Wn +
Hn +
Wn +
Hn +
240 mm
Plaster
TEST!
≥ 50
≥ 50
≥ 25
≤ 600 mm
≥ 200
50
50
4. The dampers can be installed at a minimum distance from an
adjacent floor/ceiling (≥ 25 mm), from an adjacent wall or from
another damper (≥ 50 mm).
1 2
3 4

20 Installation
50
2x12.5 / 1x25 mm
5. Build the drywall and foresee horizontal and vertical studs
around the opening.
400 mm
≥150 kg/m³
rockfit 431
40 mm
≤60%
≥150 kg/m³
6. 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.
This sealing is applied over the whole width/height of the
damper(s).
When the damper is installed at a distance of 25 mm from a
floor/ceiling, the rigid high-density stone wool panels may
be replaced with standard 40 kg/m³ stone wool (Rockfit 431),
compressed by at least 40%.
Plaster
7. Seal the rest of the opening (50 mm) with standard gypsum
across the entire wall thickness.
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