Lindab WK45 Series Installation and operation manual

English
For further information please refer to the Technical Manual.
As the manufacturer is constantly improving its products, the aesthetic or dimensional features, the technical data, the equipment and acces-
sories indicated could be subject to variations.
Installation booklet
RECTANGULAR SERIES WK45 - 500 Pa / 300 Pa
Cert. N° 1812-CPR-1006 EN 15650
This is a 17 page installation booklet.
www.mp3-italia.it
*1MUBWK45EN* rev 19-05
*1MUBWK45EN*
www.lindab.com - Fire dampers are manufactured by MP3 Srl www.mp3-italia.it
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*1MUBWK45EN-LIND*
WK45

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OVERVIEW
Fire resistance classication according to EN 13501-3-2009
EI 180 S
(500 Pa)
EI 120 S
(500 Pa)
EI 90 S
(500 Pa)
EI 60 S
(500 Pa)
EI 30 S
(500 Pa)
Rigid wall
EI 120 S Installation within vertical rigid wall
Wall minimum thickness 100 mm
Wall minimum density 500 kg/m³
Mortar or plaster putty sealing
ve (i↔o)
W - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 120 S Installation within vertical rigid wall
Wall minimum thickness 100 mm
Wall minimum density 500 kg/m³
Plasterboard and rock wool 100 kg/m³ sealing
ve (i↔o)
D - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 180 S Installation within vertical rigid wall
Wall minimum thickness 140 mm
Wall minimum density 500 kg/m³
Mortar sealing
ve (i↔o)
WB X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
Flexible wall
EI 120 S Installation within vertical light wall (plasterboard)
Wall minimum thickness 100 mm
Wall rock wool density up to 100 kg/m³ (optional)
Mortar or plaster putty sealing
ve (i↔o)
W - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 90 S Installation within vertical light wall (plasterboard)
Wall minimum thickness 100 mm
Wall rock wool density up to 100 kg/m³ (optional)
Plasterboard and rock wool 100 kg/m³ sealing
ve (i↔o)
D - - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 120 S Installation within vertical light wall (gypsum blocks wall)
Wall minimum thickness 100 mm
Wall minimum density 995 kg/m³
Plaster putty sealing
ve (i↔o)
W - B X H min 200 X 200
max 1000 X 600
B X H
min 200 X 200
max 1000 X 600
B X H
min 200 X 200
max 1000 X 600
B X H
min 200 X 200
max 1000 X 600
EI 90 S Installation within vertical light wall (gypsum blocks wall)
Wall minimum thickness 70 mm
Wall minimum density 995 kg/m³
Plaster putty sealing
ve (i↔o)
W - - B X H min 200 X 200
max 1000 X 600
B X H
min 200 X 200
max 1000 X 600
B X H
min 200 X 200
max 1000 X 600
Floor
EI 180 S Installation within oor
Floor minimum thickness 140 mm
Floor minimum density 2200 kg/m³
Mortar sealing
ho (i↔o)
WB X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 120 S Installation within oor
Floor minimum thickness 150 mm
Floor minimum density 650 kg/m³
Mortar sealing
ho (i↔o)
W - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 90 S Installation within oor
Floor minimum thickness 100 mm
Floor minimum density 650 kg/m³
Mortar sealing
ho (i↔o)
W - - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H are re damper minimum and maximum nominal dimensions (base x height) in mm
ve Vertical installation
ho Horizontal installation
(i↔o) Origin of re irrelevant
Pa Pascal of depression
E Integrity
I Thermal insulation
S Smoke seal
W Wet method sealing
D Dry method sealing
Cert. N° 1812-CPR-1006 EN 15650

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Fire Batt (Weichschott) sealings
EI 120 S
(300 Pa)
EI 90 S
(300 Pa)
EI 60 S
(300 Pa)
EI 30 S
(300 Pa)
Rigid wall
EI 90 S Installation within vertical rigid wall with Fire Batt (Weichschott) sealing
Wall minimum thickness 100 mm
Wall rock wool minimum density 500 kg/m³
Rock wool 140 kg/m³ and endothermic varnish sealing
ve (i↔o)
W - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
Flexible wall
EI 90 S Installation within vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing
Wall minimum thickness 100 mm
Wall rock wool density up to 100 kg/m³ (optional)
Rock wool density 140 kg/m³ and endothermic varnish sealing
ve (i↔o)
W - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
EI 90 S Installation within vertical light wall (gypsum blocks wall) with Fire Batt (Weichschott) sealing
Wall minimum thickness 100 mm
Wall minimum density 995 kg/m³
Rock wool 140 kg/m³ and endothermic varnish sealing
ve (i↔o)
W - B X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
Floor
EI 120 S Installation within oor with Fire Batt (Weichschott) sealing
Floor minimum thickness 150 mm
Floor minimum density 650 kg/m³
Rock wool 140 kg/m³ and endothermic varnish sealing
ho (i↔o)
WB X H min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H
min 200 X 200
max 1500 X 800
B X H are re damper minimum and maximum nominal dimensions (base x height) in mm
ve Vertical installation
ho Horizontal installation
(i↔o) Origin of re irrelevant
Pa Pascal of depression
E Integrity
I Thermal insulation
S Smoke seal
W Wet method sealing
D Dry method sealing
Cert. N° 1812-CPR-1006 EN 15650
Paired re dampers wall opening
1. Hole and installation for two re dampers paired side by side with horizzontal axis
2. Hole and installation for two re dampers paired vertically with horizzontal axis

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X1 X2 Y1 Y2
vertical rigid wall EI 120 S B1 + 80 mm Btot + 80 mm H1 + 80 mm Htot + 80 mm
light vertical plasterboard wall EI 120 S B1 + 100 mm Btot + 100 mm H1 + 100 mm Htot + 100 mm
light vertical plasterboard wall EI 90 S B1 + 75 mm Btot + 75 mm H1 + 75 mm Htot + 75 mm
light vertical gypsum blocks wall EI 120 S B1 + 80 mm Btot + 80 mm H1 + 80 mm Htot + 80 mm
light vertical gypsum blocks wall EI 90 S B1 + 80 mm Btot + 80 mm H1 + 80 mm Htot + 80 mm
horizontal oor EI 180 S B1 + 130 mm Btot + 130 mm H1 + 130 mm Htot + 130 mm
horizzontal oor EI 120 S B1 + 130 mm Btot + 130 mm H1 + 130 mm Htot + 130 mm
horizzontal oor EI 90 S B1 + 130 mm Btot + 130 mm H1 + 130 mm Htot + 130 mm
Mechanism type
Manual / Manual with magnet
1. Manual opening lever
2. Protection box
3. Lever position when the blade is open
4. Lever position when the blade is closed
5. Magnet knob (for magnetic version)
6. Closed blade indicator
7. Open blade indicator
8. Manual closing button
Blade closing mode
Automatic closing with thermal fuse.
The control mechanism has a thermosensitive element that auto-
matically closes the blade when the temperature in the duct exceeds
70°C (or 95°C for the re damper with 95°C thermal fuse).
It is possible to close the damper by pressing the indicated button.
If the manual mechanism is equipped with electromagnet it is possi-
ble to remotely close the re damper.
The manual command mechanism with magnet is equipped with
an electromagnet which, in case power is interrupted (interuption
magnet version) or when power is supplied (input magnet version),
comands the closing of the damper.
Blade opening mode
The damper must be opened when the ventilation system if
switched o.
In case of closed damper by pressing the closing button or remotely
by electromagnet (magnetic version), it is possible to manually open
the re damper blade by rotating the lever antyclockwise.
For power supply interruption electromagnet, provide power supply
and pull the magnet knob before opening the re damper.
In case of closed damper as a result of the action of the thermosen-
sitive element, it is possible to manually reopen the damper by rotat-
ing the lever counterclockwise once the element has been replaced.
Position indication microswitches
On request, the re damper can be supplied with position mi-
croswitches (SA/SC/S2 optional) that signal the blade position (open
or closed). Refer to Electrical connections paragraph for more details.
Closing by remote control
With power supply input or interruption magnet (WK45M version
only).
Temperature calibration of thermosensitive element for auto-
matic damper closing
70 °C±7 °C (Standard)
95 °C±9 °C (On request).
Belimo motorized version
1. Manual closing switch
2. Manual opening lever
3. Position indicator
4. Blade locking lever
Blade closing mode
Automatic closing with thermal fuse.
The control mechanism has a thermosensitive element that auto-
matically closes the blade when the temperature in the duct or in
the room exceeds 72°C (or 95°C for the 95°C version).
To close the damper when the motor is connected, press the switch
on the temperature sensor or cut o the power supply.
Blade opening mode
The damper must be opened when the ventilation system if
switched o.
To open the damper with the electric motor driven actuator, provide
power supply to the motor. Refer to the section Electrical connec-
tions for further information.
To manually open the damper, use the handle supplied and carefully
rotate clockwise to the 90° indicator. To hold the damper in open
position operate on the lever indicated in gure.
For VGB/DGB versions to hold the damper in open position, carefully
rotate the handle counterclockwise.
During the manual opening of the damper, power must not be sup-
plied to the motor.
Position indication microswitches
The motorized versions are supplied with two microswitches to
show the blade's position (open or closed). Refer to the section Elec-
trical connections for further information.
Closing by remote control
If power to the motor is cut o, the blade will close.
Temperature calibration of thermosensitive element for auto-
matic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (On request).

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Siemens motorized version
1. Manual closing switch
2. Manual opening lever
3. Screwdriver
4. Position indicator
Blade closing mode
Automatic closing with thermal fuse.
The control mechanism has a thermosensitive element that auto-
matically closes the blade when the temperature in the duct or in
the room exceeds 72°C (or 95°C for the 95°C version).
To close the damper when the motor is connected, press the switch
on the temperature sensor or cut o the power supply.
Blade opening mode
The damper must be opened when the ventilation system if
switched o.
To open the damper with the electric motor driven actuator, provide
power supply to the motor. Refer to the section Electrical connec-
tions for further information.
To manually open the damper, use the handle supplied and carefully
rotate counterclockwise to the 90 °C indicator. To hold the damp-
er in open position, rotate the screw anticlockwise as shown in the
picture.
During the manual opening of the damper, power must not be sup-
plied to the motor.
Position indication microswitches
The motorized versions are supplied with two microswitches to
show the blade's position (open or closed). Refer to the section Elec-
trical connections for further information.
Closing by remote control
If power to the motor is cut o, the blade will close.
Temperature calibration of thermosensitive element for auto-
matic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (On request).
Fire dampers pairing
The WK45 patented rectangular re dampers can be paired side-by-
side or vertically (not more than two) using the custom connection
kit (see section Accessories and spare parts). Two insulating layers
must be inserted between the two re dampers.
The pair of dampers, may be installed in vertical wall in the same way
as a single damper.
1. WK45 Fire damper
2. Steel plate
3. Fixing screws
4. Rock wool strip 100 kg/m³ 80 x 65 x nominal re damper base + 70 mm
(not included in the connection kit WKBA2)
5. Rock wool strip 100 kg/m³ 80 x 65 x nominal re damper height + 70 mm
(not included in the connection kit WKBA2)
6. Nut
• It is forbidden to pair three or more re dampers.
1. WK45 Fire damper
2. Steel plate
3. Fixing screws
4. Rock wool strip 100 kg/m³ 80 x 65 x nominal re damper base + 70 mm
(not included in the connection kit WKBA2)
5. Nut
• It is forbidden to pair three or more re dampers.
• It is forbidden to vertically pair two re dampers with vertical axis.
ELECTRICAL CONNECTIONS
Electrical wiring
Electrical connections must be done by qualied and trained people.
Switch o the power supply before starting any work on the electric
elements. Never switch on the power supply during electrical con-
nections.

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1. SC (closed damper) microswitch - on request
2. SA (open damper) microswitch - on request
3. Magnet - on request
4. Magnet cables for wiring
SC/SA microswitches position
1. "NC" contact of SC microswitch. When the re blade is closed the circuit
is open.
2. "NO" contact of SC microswitch. When the re blade is closed the circuit
is closed.
3. "NC" contact of SA microswitch. When the re blade is open the circuit is
open.
4. "NO" contact of SA microswitch. When the re blade is open the circuit is
closed.
230 V AC magnet wiring
1. 230 V AC power supply
2. Magnet
3. Rectier
24 V DC magnet wiring
1. 24 V DC power supply
2. Magnet
WK45 - Motorized version
Belimo servomotor:
BFL24T, BFN24T, BF24T, BFL230T, BFN230T, BF230T.
Siemens servomotor:
GRA126, GNA126, GGA126.

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Siemens servomotor:
GRA326, GNA326, GGA326.
Motorized re dampers electical wiring
To connect the dampers to the power supply, proceed as follows:
• Check that the voltage and electrical frequency are equivalent to
those of the motor of the servomotor (check the motor's informa-
tion label);
• Make the connections as shown in the below diagram.
1 Negative (DC) or neutral (AC)
2 Positive (DC) or phase (AC)
3 Phase
4 Neutral
S1 Common closed damper microswitch
S2 Normally closed, closed damper microswitch
S3 Normally opened, closed damper microswitch
S4 Common open damper microswitch
S5 Normally closed, open damper microswitch
S6 Normally opened, open damper microswitch
Electrical specications
Manual
Manual with magnet
Belimo motorized version
Siemens motorized version
Voltage and power consumption -
Power interrruption magnet:
P=4,5 W (24V DC or 230 V AC version) Power input magnet: P=4,5 W (24V DC or 230 V AC version)
Motor 24V AC/DC (WK45VMB):
Belimo BFN24T
Opening: 4 W
In stand-by: 1,4 W
Motor 230V AC (WK45DMB):
Belimo BFN230T
Opening: 5 W
In stand-by: 2,1 W
Motor 24V AC/DC (WK45VGB):
Belimo BF24T
Opening: 7 W
In stand-by: 2 W
Motor 230V AC (WK45DGB)
Belimo BF230T
Opening: 8 W
In stand-by: 3 W
Motor 24V AC/DC (WK45VPS) /
(WK45VSS):
Siemens GNA126 / GRA126
Opening: 3,5 W
In stand-by: 2 W
Motor 230V AC (WK45DPS) / (WK45DSS):
Siemens GNA326 / GRA326
Opening: 4,5 W
In stand-by: 3,5 W
Motor 24V AC/DC (WK45VGS):
Siemens GGA126
Opening: 6 W
In stand-by: 1.5 W
Motor 230V AC (WK45DGS):
Siemens GGA326
Opening: 6 W
In stand-by: 2,5 W
Microswitches position contacts Manual control version: 15 - 400V
1,8 A
Motorized version:
Siemens: AC 24V…230V / 6 (2) A
Belimo: DC 5V…AC 250V / 1mA…3A (0,5A)
Blade closing time Spring: 1 s motor: < 30 s
Protection degree IP42 IP42 MAGNETIC VERSION
IP54 MOTORIZED VERSION
MAINTENANCE AND INSPECTIONS
Fire dampers and control mechanisms do not require routine main-
tenance. Extraordinary maintenance (repairs) and periodic inspection opera- tions are the responsibility of the ventilation system operator.

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The implementation of a periodic inspection plan allows to guaran-
tee the eciency and functionality of the re dampers for the re
safety of the building.
Periodic inspection and cleaning
Periodic inspection shall be performed in accordance with the re-
quirements of the law or by the building regulations or other local
regulations.
In the absence of specic regulations (or to their complement), in ac-
cordance with point 8.3 of the EN 1560 standard, it is recommended
to carry out the following control activities at intervals of no more
than 6 months:
• If the damper is connected to a remote control or command sys-
tem (eg BMS or alarm or re detection), that responds correctly to
commands by performing at least one opening and closing test
and verifying the correct movement of the blade and the correct
functioning of the microswitches (limit switches).
• If the damper is not connected to a remote control or command
system, manually execute an opening and closing test and check
the correct movement of the blade and the correct functioning of
the microswitches (limit switches) if present.
Together with the control activities, it is recommended to visually
verify the absence of corrosion, the integrity of the electrical wiring
and the sealing of the construction support.
Damper cleaning is included in the ordinary maintenance activities
of the ventilation ducts.
Fire dampers can be cleaned with a dry or wet cloth.
In the case of resistant dirt, it is possible to use normal household
detergents.
If prescribed for the type of building, it is possible to use disinfectant
detergents.
The use of detergents or mechanical abrasive cleaning systems is not
permitted.
These indications comply with the standards EN 15650 annex D and
EN 15423 annex C.
Repair
For safety reasons, repair activities involving re-ghting compo-
nents must be carried out only by qualied personnel.
Only original spare parts supplied by the re damper manufacturer
must be used.
A functional test must be performed after each repair.
.
At the end of the inspection, cleaning or repair operations, check that
the re damper is in the normal operating position.
Keep records of all inspections, repair activities, any problems en-
countered and their resolution.
This practice, even when not mandatory, is very useful in practice.
Disposal
Disposal in case of destruction must be carried out in accordance
with national legislation. For electrical and electronic parts also refer
to EU Directive 2011/65.
INSTALLATION
The sizes shown are in mm.
It is recommended to perform a functional test before Installation to
exclude possible damage during transport and another test immedi-
ately after installation to exclude accidental damage to the product
and interference with mounting components.
Blade rotation axis positioning
The re damper can be installed both with the blade axis positioned
vertically or horizontally.
Positioning brackets before xing
1. WKGY100 xing brackets (accessory to order separately, one size valid for all
re dampers kind)
WKGY100 xing brackets are obligatory for intallations within plaster-
board walls and suggested for walls with 100 mm thickness.
They are not usable for installations with Fire Batt (Weichschott) seal-
ing.
Installation of exible connectors in order to balance out the
ventilation ducts expansion
CAUTION: Refer anyway to law and national standardization.
Flexible connectors compensate any duct thermal expansion and
wall bending in case of re.
Flexible connectors are used to limit re damper stresses due to ex-
ternal forces in case of re and to preserve re resistance class.
In general it is always appropriate the use of exible connectors for
the followings installations:
– light walls;
– Plasterboard and rock wool or Fire Batt (Weichschott) sealing;
– Applique xing system.

9/17
Flexible connector must be normal ammability and in case of re
the grounding bonding should disconnet to guarantee the com-
plete separation between re damper and connected air duct.
When exible connectors made of conductive material (e.g. alumi-
num) are used, no additional grounding bonding is required.
Despite exible connector installation, the re damper must be in-
stalled in the construction support so that its weight does not aect
damper’s installation position both during normal operation and in
case of re.
It is recommended not to compress exible connectors in the in-
stallation phase.
Flexible connector must be at least 100mm long and in order that
possible duct thermal expansions are balanced.
Take care that the exible connector does not interfer with opening
/ closing movement of the blade.
Transfer Application (application not connected to air ducts on
one or both sides)
Following tests performed as per EN 1366-2, section 6.3.6 Standard,
it is possible to install the re damper free from air duct from one or
both sides.
• Attention: re resistance classication for transfer application is
conform to section Fire resistance classication according to EN
13501-3-2009 limited to EI 120S if the ducted classication is high-
er.
• End cap with mesh shall be mounted on the side not connected
to air duct.
• End cap with mesh is made from galvanized steel sheet and in-
cludes nuts and screws for xing on re damper.
• End cap with mesh is supplied loose from the re damper.
Components (Transfer Application)
1. End cap with mesh
2. Fire damper 3. M10 nut 4. M10 screw
Technical data (Transfer Application)
1. Mechanism side
2. Mechanism opposite side
3. End cap with mesh
L1 End cap length mechanism side
L2 End cap length mechanism
opposite side
H Nominal height of re damper
Length of end cap with mesh depending on re damper
height H.
H L1 L2
200 50 50
250 50 50
300 50 50
350 50 50
400 50 50
450 50 50
500 50 50
550 50 50
600 50 50
650 100 100
700 100 100
750 150 150
800 150 150
H Nominal height of re damper
L1 End cap length mechanism side
L2 End cap length mechanism opposite side
Minimum distances
It is recommended to keep enough space for using the control
mechanism or for maintenance.
In accordance with Articles 7 and 13 of EN 1366-2 respect the mini-
mum distances indicated below.

10/17
Minimum distances
1. Side vertical wall
2. Floor
a. Distance between re dampers installed within vertical wall
b. Distance between re damper and vertical lateral wall / oor
c. Distance between re dampers installed within oor
d. Distance between re damper and vertical lateral wall
Fire dampers installed within vertical wall Fire dampers installed within oor
Installation a [mm] b [mm] c [mm] d [mm] Paired installation
Rigid wall
EI 180 S Installation within vertical rigid wall
Mortar sealing 70 75 - - Yes. One air duct
EI 120 S Installation within vertical rigid wall
Mortar or plaster putty sealing 70 75 - - Yes. One air duct
EI 120 S Installation within vertical rigid wall
Plasterboard and rock wool 100 kg/m³ sealing 70 75 - - Yes. One air duct
Flexible wall
EI 120 S Installation within vertical light wall (plasterboard)
Mortar or plaster putty sealing 70 75 - - Yes. Separate air duct
EI 90 S Installation within vertical light wall (plasterboard)
Plasterboard and rock wool 100 kg/m³ sealing 70 75 - - Yes. Separate air duct
EI 120 S Installation within vertical light wall (gypsum blocks wall)
Plaster putty sealing 70 75 - - Yes. Separate air duct
EI 90 S Installation within vertical light wall (gypsum blocks wall)
Plaster putty sealing 200 75 - - No
Floor
EI 180 S Installation within oor
Mortar sealing - - 70 75 Yes. Separate air duct
EI 120 S Installation within oor
Mortar sealing - - 70 75 Yes. Separate air duct
EI 90 S Installation within oor
Mortar sealing - - 70 75 Yes. Separate air duct
The minimum distance between two or more paired installations
is 200 mm.
It is forbidden to pair three or more re dampers.

11/17
Fire Batt (Weichschott) sealings
Fire dampers installed within vertical wall Fire dampers installed within oor
Installation a [mm] b [mm] c [mm] d [mm] Paired installation
Rigid
wall
EI 90 S Installation within vertical rigid wall with Fire Batt
(Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing 70 50 - - Yes. One air duct
Flexible wall
EI 90 S Installation within vertical light wall (plasterboard) with
Fire Batt (Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing 70 50 - - Yes. One air duct
EI 90 S Installation within vertical light wall (gypsum blocks wall)
with Fire Batt (Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing 70 50 - - Yes. One air duct
Floor
EI 120 S Installation within oor with Fire Batt (Weichschott)
sealing
Rock wool 140 kg/m³ and endothermic varnish sealing - - 200 75 No
The minimum distance between two or more paired installations
is 200 mm.
It is forbidden to pair three or more re dampers.
1. One air duct 2. Separate air ducts
Construction supports characteristics
The European standard for re dampers foresees a precise correlation
between the wall/oor characteristics and the re resistance class
obtained, as well as the correlation between wall/oor used for the
test and wall/oor used for the actual installation.
The test results obtained on a type of wall/oor are valid also for
walls/oor of the same type but with greater thickness and/or densi-
ty than those used in the test.
For plasterboard walls, the test results are also valid for walls with a
greater number of plasterboard layers on each side.
As a result, the indicated thickness and density characteristics are to
be considered as minimum values.
The wall/oor in which the re dampers are installed must be re
class certied according to the standards foreseen for the structure.
Rigid walls
Can be made with aerated concrete blocks, poured concrete, con-
crete panels, perforated cell elements in concrete or brick in accord-
ance with the following characteristics:
• minimum thickness 100 mm;
• minimum density 500 kg/m³.
The use of a reinforcing beam above the opening is recommended
for walls made from concrete blocks, bricks or in concrete cell ele-
ments.
For walls built with perforated elements, it is also recommended that
the area of the opening be made from full elements (for example
aerated concrete blocks) to guarantee the correct adhesion of the
mortar.
1. Reinforcing beam
Light plasterboard vertical walls
During testing, light plasterboard walls have been used with the fol-
lowing characteristics:
• U-shaped horizontal metal frame (50 mm) and C-shaped vertical
frame (49 mm) made from 0,6 mm thick sheet metal;
• Vertical proles placed with a maximum spacing of 625 mm be-
tween each other;
• Filling made of rock wool with density up to 100 kg/m³ (optional);
• Each side is made from two plasterboard layers 12,5 mm thick, un-
alinged to avoid alignment between the joints of the layer above
and below.

12/17
The following indications are given for the installation walls:
• metal proles minimum width: 49 mm;
• metal proles minimum thickness: 0,6 mm;
• vertical proles placed with a maximum spacing of 625 mm be-
tween each other;
• vertical prole xing with selfthreading screws or by clinching to
the bottom horizontal prole and insertion in the top horizontal
prole;
• proles xed using self-threading screws or by clinching on every
intersection.
• installation of a frame around the damper with base and height
where shown in the installation instructions;
• Filling made of rock wool with density up to 100 kg/m³ (optional);
• each side is made from two plasterboard layers 12,5 mm minu-
mum thick, unalinged to avoid alignment between the joints of
the layer above and below.
• the front plasterboards layers are xed using long enough screws
to pass through the lower plasterboard and attach to the steel pro-
le underneath.
1. Plasterboard thickness 12,5 mm
2. Rock wool density up to 100 kg/m³ (optional)
3. Horizontal U-shaped prole
4. Vertical C-shaped prole
5. Self-drilling screw Ø 3,5 X 25 mm
6. Self-drilling screw Ø 3,5 X 35 mm
Gypsum blocks light walls
Gypsum blocks wall can be built with special solid gypsum blocks
with interlocking shaped edges as indicated in the supplier's instruc-
tions and according to the following characteristics:
• minimum thickness 70 or 100 mm according to the type and re-
sistance class required;
• minimum density 995 kg/m³.
It is generally advisable to rst build the wall and then provide the
opening for the re damper.
Aerated concrete oors
Aerated concrete oors can be built during installation or with pre-
formed slabs with interlocking shaped edges according to the fol-
lowing characteristics:
• minimum thickness 100 or 150 mm according to the type and re-
sistance class required;
• minimum density 650 kg/m³
Poured concrete oors
Poured concrete oors can be built during installation or with pre-
formed slabs with interlocking shaped edges according to the fol-
lowing characteristics:
• minimum thickness 100 or 150 mm according to the resistance
class required;
• minimum density 2200 kg/m³.
Installations within vertical rigid wall
Refer to the section Construction supports characteristics for further
information.
Comply with the minimum distances indicated on section Minimum
distances
Wall opening
A opening must be provided in the wall as indicated in the table and
in the drawing
Damper positioning
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the table and in the drawing.
Filling
Fill the space between the wall and the damper as indicated in the
table and in the drawing.

13/17
Fire resistance classication Hole size“D1 x D2”
[mm]
Damper protrusion from
the wall“E”
[mm]
Wall minimum thickness“S”
[mm] Sealing
EI 120 S Installation within vertical rigid wall
Wall minimum density 500 kg/m³ EI 120 S
(500 Pa) From (B+80) x (H+80) to (B+580) x (H+580) 205 100 Mortar or plaster putty sealing
EI 120 S Installation within vertical rigid wall
Wall minimum density 500 kg/m³ EI 120 S
(500 Pa) From (B+80) x (H+80) to (B+110) x (H+110) 205 100 Rock wool 100 kg/m³
with inll plasterboard
(thickness 12.5 mm)
EI 180 S Installation within vertical rigid wall
Wall minimum density 500 kg/m³ EI 180 S
(500 Pa) From (B+80) x (H+80) to (B+110) x (H+110) 185 140 Mortar sealing
B Nominal base of the damper
H Nominal height of the damper
EI 120 S / EI 180 S Installations within vertical rigid wall
1. Sealing indicated in the table
D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the wall: see table above
S Wall minimum thickness: see table above
EI 120S Installation within vertical rigid wall
1. Plasterboard inll panel, thickness 12,5 mm, for rock wool sealing
2. Rock wool, 100 kg/m³
3. Self-drilling screw Ø 3,5 X 45 mm
D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the wall: see table above
Installations within vertical light wall (plasterboard)
Refer to the section Construction supports characteristics for further
information.
Comply with the minimum distances indicated on section Minimum
distances
Wall opening
A opening must be provided in the wall as indicated in the table and
in the drawing
Damper positioning
Fix the four aps code WKGY100 on the four corners of the re damp-
er (in corrispondence to the longer screws).
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the table and in the drawing.
Filling
Fill the space between the wall and the damper as indicated in the
table and in the drawing.
Fire resistance classication Hole size“D1 x D2”
[mm]
Damper protrusion from
the wall“E”
[mm]
Wall minimum thickness“S”
[mm] Sealing
EI 90 S Installation within vertical light wall (plasterboard)
Wall rock wool density up to 100 kg/
m³ (optional) EI 90 S (500 Pa) Da (B+75) x (H+75) a (B+95) x (H+95) 205 100 Rock wool 100 kg/m³
with inll plasterboard
(thickness 12.5 mm)
EI 120 S Installation within vertical light wall (plasterboard)
Wall rock wool density up to 100 kg/
m³ (optional) EI 120 S (500 Pa) Da (B+100) x (H+100) to (B+580) x (H+580) 205 100 Mortar or plaster putty
B Nominal base of the damper
H Nominal height of the damper

14/17
EI 90 S Installation within vertical light wall (plasterboard)
D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the wall: see table above
1. Plasterboard inll panel, thickness 12,5 mm
2. Plasterboard inll panel, thickness 12,5 mm
3. Rock wool, 100 kg/m³
4. WKGY100 xing brackets (accessory to order separately, one size valid for all
re dampers kind and wall thickness)
5. Rock wool density up to 100 kg/m³ (optional)
6. Plasterboard thickness 12,5 mm
7. Self-drilling screw Ø 3,5 X 45 mm
8. Metal frame
EI 120 S Installation within vertical light wall (plasterboard)
D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the wall: see table above
1. Mortar M-10, EN998-2 or plaster
2. Rock wool density up to 100 kg/m³ (optional)
3. Plasterboard thickness 12,5 mm
4. Metal frame
Installations within vertical light wall (gypsum blocks wall)
Refer to the section for further information.
Comply with the minimum distances indicated on section Minimum
distances
Wall opening
A opening must be provided in the wall as indicated in the table and
in the drawing
Damper positioning
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the table and in the drawing.
Filling
Fill the space between the wall and the damper as indicated in the
table and in the drawing.
Fire resistance classication Hole size“D1 x D2”
[mm]
Damper protrusion from
the wall“E”
[mm]
Wall minimum thickness“S”
[mm] Sealing
EI 90 S Installation within vertical light wall (gypsum blocks wall)
(paired installation not available)
Wall minimum density 995 kg/m³ EI 90 S
(500 Pa) From (B+80) x (H+80) to (B+110) x (H+110) 220 70 Plaster putty sealing
EI 120 S Installation within vertical light wall (gypsum blocks wall)
Wall minimum density 995 kg/m³ EI 120 S
(500 Pa) From (B+80) x (H+80) to (B+110) x (H+110) 205 100 Plaster putty sealing
B Nominal base of the damper
H Nominal height of the damper 1. Plaster putty
D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the wall: see table above
S Wall minimum thickness: see table above
Installations within oor
Refer to the section Construction supports characteristics for further
information. Comply with the minimum distances indicated on section Minimum distances

15/17
Floor opening
A opening must be provided in the oor as indicated in the table
and in the drawing
Damper positioning
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the table and in the drawing.
Filling
Fill the space between the oor and the damper as indicated in the
table and in the drawing.
Fire resistance classication Hole size“D1 x D2”
[mm]
Damper protrusion from
the wall“E”
[mm]
Floor minimum thickness“S”
[mm] Sealing
EI 90 S Installation within oor
Floor minimum density 650 kg/m³ EI 90 S
(500 Pa) From (B+130) x (H+130) to (B+170) x (H+170) 193 100 Mortar sealing
EI 120 S Installation within oor
Floor minimum density 650 kg/m³ EI 120 S
(500 Pa) From (B+130) x (H+130) to (B+170) x (H+170) 193 150 Mortar sealing
EI 180 S Installation within oor
Floor minimum density 2200 kg/m³ EI 180 S
(500 Pa) From (B+130) x (H+130) to (B+170) x (H+170) 185 140 Mortar sealing
B Nominal base of the damper
H Nominal height of the damper D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the oor: see table above
S Floor minimum thickness: see table above
1. Mortar M-10, EN998-2
Installations within vertical wall with Fire Batt (Weichschott) sealing
Refer to the section Construction supports characteristics for further
information.
Comply with the minimum distances indicated on section Minimum
distances
Wall opening
A opening must be provided in the wall as indicated in the table and
in the drawing
Damper positioning
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the table and in the drawing.
Filling
Fill the space between the damper and the wall using Fire Batt
(Weichschott) sealing made from two rock wool panels with mini-
mum thickness of 50 mm and minimum density of 140 kg/m³.
The panels must be covered on both faces of the wall with endo-
thermic varnish type PROMASTOP E PASTE or HILTI CFS-CT (mini-
mum thickness of 1 mm) and with an internal perimeter sealant type
PROMASTOP E PASTE or HILTI CFS-S ACR (minimum thickness of 1
mm).

16/17
Fire resistance classication Hole size“D1 x D2”
[mm]
Damper protrusion from
the wall“E”
[mm]
Wall minimum thickness“S”
[mm] Sealing
Rigid wall
EI 120 S Installation within rigid vertical wall with Fire Batt (Weichschott) sealing
Wall minimum density 500
kg/m³ EI 90 S (300 Pa) (B+800 max) x (H+800 max) 205 100 Rock wool 140 kg/
m³ and endothermic
varnish sealing
Flexible wall
EI 120 S Installation within vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing
Wall rock wool density up to 100
kg/m³ (optional) EI 90 S (300 Pa) (B+800 max) x (H+800 max) 205 100 Rock wool 140 kg/
m³ and endothermic
varnish sealing
EI 120 S Installation within vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing
Wall minimum density 995
kg/m³ EI 90 S (300 Pa) (B+800 max) x (H+800 max) 205 100 Rock wool 140 kg/
m³ and endothermic
varnish sealing
B Nominal base of the damper
H Nominal height of the damper D1 Hole base indicated in the table
D2 Hole height indicated in the table
E Damper protrusion from the wall indicated in the table
1. Rock wool panel 50 mm thick with 140 kg/m³ density.
2. PROMASTOP E PASTE or HILTI CFS-S ACR type sealant
3. PROMASTOP E PASTE or HILTI CFS-CT endothermic varnish
Installation within oor with Fire Batt (Weichschott) sealing
Refer to the section for further information.
Comply with the minimum distances indicated on section Minimum
distances
Floor opening
A opening must be provided in the oor as indicated in the table
and in the drawing
Damper positioning
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the table and in the drawing.
Filling
Fill the space between the damper and the oor using Fire Batt
(Weichschott) sealing made from two rock wool panels with mini-
mum thickness of 50 mm and minimum density of 140 kg/m³.
The panels must be covered on both faces of the wall with endo-
thermic varnish type PROMASTOP E PASTE or HILTI CFS-CT (mini-
mum thickness of 1 mm) and with an internal perimeter sealant type
PROMASTOP E PASTE or HILTI CFS-S ACR (minimum thickness of 1
mm).
Fire resistance classication Hole size“D1 x D2”
[mm]
Damper protrusion from
the wall“E”
[mm]
Floor minimum thickness“S”
[mm] Sealing
EI 120 S Installation within oor and Fire Batt (Weichschott) sealing
Floor minimum density 650 kg/m³ EI 120 S
(300 Pa) (B+800 max) x (H+800 max) 205 150 Rock wool 140 kg/
m³ and endothermic
varnish sealing
B Nominal base of the damper
H Nominal height of the damper

17/17
D1 Hole base: see table above
D2 Hole height: see table above
E Damper protrusion from the oor: see table above
1. Rock wool panel 50 mm thick with 140 kg/m³ density.
2. PROMASTOP E PASTE or HILTI CFS-S ACR type sealant
3. PROMASTOP E PASTE or HILTI CFS-CT endothermic varnish