SMAY WKP-O Guide

a
Technical
Documentation
WKP-O
Fire damper -
rectangular
v
https: //
www.smay.eu

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Technical documentation
WKP-O
2434
SMAY Sp. z o.o.
22
2434-CPR-0010
EN 15650:2010
Fire damper
type: WKP-O
Nominal activation
conditions/sensitivity:
Closing/opening during
the test at the right time
Pass
Response time/Closure time:
Pass
Reliability:
300 cycles –pass
Fire resistance:
Fire integrity - E
Fire insulation - l
Smoke leakage - S
Mechanical stability
(under E)
Maintenance of the cross section (under E)
EI 120 (ve hoi↔o) S
EI 90 (ve i↔o) S
E 120 (ve i↔o) S
EI 120 (ve i↔o) S
Durability:
Response delay:
Operating reliability:
Pass

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Version 6.00
SMAY reserves the right to make changes to this document.
TABLE OF CONTENT
1. INTRODUCTION................................................................................................. 3
2. LEGAL REGULATIONS......................................................................................... 3
3. INTENDED USE ................................................................................................. 3
4. TECHNICAL DESCRIPTION .................................................................................. 4
5. BELIMO ELECTRIC ACTUATORS USED IN WKP-O ................................................... 7
6. ACCESSORIES FOR WKP DAMPERS .................................................................... 14
7. CONDITIONS OF TRANSPORT AND STORAGE ...................................................... 15
8. INSTALLATION TECHNOLOGY............................................................................ 15
8.1. INSTALLATION TECHNOLOGY –RIGID WALL....................................................... 16
8.1.1. PROMADUCT CHANNEL..................................................................................... 19
8.2. INSTALLATION TECHNOLOGY –STRUCTURES THICKER THAN 125 MM ................... 20
8.3. INSTALLATION TECHNOLOGY –LIGHT WALL....................................................... 21
8.4. INSTALLATION TECHNOLOGY –MKW HONEYCOMB MESH COVER .......................... 24
9. PRINCIPLES OF MAINTENANCE.......................................................................... 25
10. TERMS OF WARRANTY...................................................................................... 27

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1. INTRODUCTION
The purpose of technical documentation is to familiarize the user with the intended use, design, operation principle,
installation, periodic maintenance and operation of product.
2. LEGAL REGULATIONS
The WKP-O dampers are certified by CTO Gdańsk, Certificate of Constancy of Performance no. 2434-CPR-
0010.
The WKP-O dampers are designed, manufactured and tested in accordance with the following standards: PN-EN
15650 “Ventilation for buildings – Fire dampers” and PN-EN 13501- 3 “Fire classification of construction products
and building elements –Part 3: Classification using data from fire resistance tests on products and elements used in
building service installations: fire resisting ducts and fire dampers.”
The effectiveness of the dampers is confirmed by tests according to PN-EN 1366-2 “Fire resistance tests for service
installations –Part 2: Fire dampers.” The WKP-O fire damper is classified as tightness class C (housing tightness) on
the basis of tests carried out according to PN-EN 1751 “Ventilation for buildings. Air terminal devices. Aerodynamic
testing of dampers and valves.”
3. INTENDED USE
WKP-O fire dampers are classified in the following fire resistance range and can be mounted in the following building
partitions:
a. EI 120 (ve i↔o) S –horizontal axis of rotation of damper blades. In rigid walls with low density (650±200)
kg/m2 or more, with 125 mm thickness or more and with fire resistant class EI 120 or higher (e.g. concrete,
masonry of solid brick, cellular concrete blocks or airbricks and prefabricated boards),
b. EI 90 (ve i↔o) S, E 120 (ve i↔o) S –horizontal or vertical axis of rotation of damper blades. In rigid walls with
low density (650±200) kg/m2 or more, with 120 mm thickness or more and with fire resistant class EI90 or
higher (for dampers with horizontal or vertical axis of rotation of damper blades), EI120 or higher (for dampers
with horizontal axis of rotation of damper blades).(e.g. concrete, masonry of solid brick, cellular concrete blocks
or airbricks and boards),
c. EI 120 (ve o→i) S –horizontal axis of rotation of damper blades. In standard walls with 125 mm thickness or
more and with fire resistant class EI 120 or higher
where:
E–fire integrity,
I–fire insulation,
S–smoke leakage,
120/90–duration of fulfilment of E, I and S criteria, expressed in minutes,
ve –damper mounted directly in the wall,
ho –damper mounted directly in the ceiling,
i↔o –operating effectiveness criteria are fulfilled from the inside to the outside (fire inside), and from the outside
to the inside (fire outside).
o→i –operating effectiveness criteria are fulfilled from the outside to the inside (fire outside)
WKP-O fire dampers may be installed without ventilation duct, from one or two sides with mounted honeycomb mesh
cover.
WKP-O fire dampers may be installed in vertical building partitions with both horizontal and vertical rotation axis
of baffle, with any actuator location.
WKP-O fire dampers are intended for installation on internal and external building partition as also at a distance from
them. In case of external wall installation, use of finishing element is required (intake or exhaust) which will protect
from influence of atmospheric factors. Drive system (actuator) should be installed inside facility. It is recommended to
use dampers in special execution (impregnated fireproof boards, anti-corrosive steel elements).
WKP-O fire dampers may also be installed in building partition of a smaller fire resistance. In this case, the damper`s
fire resistance is equal to the building partition fire resistance, considering the smoke leakage criterion.

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WKP-O
Construction
type
Minimum thickness
of the building
partitions mm
Fire resistance class
Sealing type
Rigid wall
≥120 mm
EI 120 (vew i↔o) S1000 C10 000 AAmulti
MORTAR
≥120 mm
EI 90 (vew i↔o) S1500 C10 000 AAmulti
MORTAR
Flexible wall
≥125 mm
EI 120 (vew i↔o) S1000 C10 000 AAmulti
MINERAL WOOL
≥125 mm
EI 90 (vew i↔o) S1500 C10 000 AAmulti
MINERAL WOOL
Steel duct
-
E600 120 (ved i↔o) S1000 C300 AAsingle
-
4. TECHNICAL DESCRIPTION
The WKP-O dampers are made up of a rectangular housing, movable blades and a drive system.
The dampers’ housing is made of fire-rated boards and steel structural members. Both sides of the housing are
equipped with steel connection spigots, which enable easy connection of a duct.
Movable blades, made of mineral silicate composite, are fastened to the housing by means of metal pins.
There are intumescent seals mounted on the inner side of the housing and on the blades. Their characteristic feature
is the volume increase at high temperatures, tightly filling all leaks between the baffle and the body. A bubble seal
ensures the leak tightness at ambient temperature.
The WKP damper is provided with an innovative actuating mechanism, which ensures the counter rotation of the
blades. The mechanism is made up of, among other things, gears made of fire-rated materials, blades and an electric
actuator.
During normal operation of the system, the blades are in the open position. The permissible air velocity for the WKP-O
damper in a B x H connection duct is 12 m/s.
The WKP-O damper is equipped with an electric spring return actuator of BF or BFN series by BELIMO and a BAT or
BAE thermal fuse (72 ° C) (optionally 95 ° C), which is the damper's drive system with AC 230 V or AC / DC 24V
The range of dampers covers the following dimensions: a clear damper width from 200 to 1200 mm (10 mm intervals)
and clear damper height from 200 to 800 mm (100 mm intervals).
Table 1.WKP-O weight [kg]
Width B [mm]
200
300
400
500
600
700
800
900
1000
1100
1200
Height H [mm]
200
12
14
16
17
19
20
22
24
26
28
29
300
13
15
17
19
20
22
25
26
28
30
32
400
14
16
18
20
22
25
27
29
31
32
34
500
15
18
20
22
25
27
29
31
33
35
37
600
17
19
21
24
27
29
31
33
35
38
40
700
18
20
23
26
28
31
33
36
38
40
43
800
19
22
25
27
30
33
35
38
40
43
46

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WKP-O
Figure 1. WKP-O-E-K damper
Actuators used: BFN230-T; BFN24-T;
BF230-T; BF24-T
NOTES:
B –clear damper width; H –clear damper height; N –number of damper blades C - parameter, select according to the table

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Figure 2. WKP-O-E-T damper
Actuators with thermoelectric tripping device used:
BFN230-T; BFN24-T; T-BAT 72 or BAT 95 (optional) BF230-T; BF24-T; T- BAE 72 or BAE 95 (optional)
NOTES:
B –clear damper width (min. 200 max. 1200); H –clear damper height (min. 200 max. 800); N –number of damper blades C - parameter, select according to the table

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5. BELIMO ELECTRIC ACTUATORS USED IN WKP-O
Spring-return 90° actuator BFN series, combined
with thermoelectric tripping device BAT:
▪BFN230-T,
▪BFN24-T,
where:
ST - connection plug.
Spring-return 90° actuator BF series, combined
with thermoelectric tripping device BAE:
▪BF230-TN,
▪BF24-T

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Wiring diagram BFN230-T
Wiring diagram BFN24-T

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Wiring diagram BF230-T
Wiring diagram BF24-T

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Technical data: BFN230-T

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Technical data: BFN24-T

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Technical data: BF230-T

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Technical data: BF24-T

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6. ACCESSORIES FOR WKP DAMPERS
WKP-O dampers can be used as transfer dampers with use of KST type grilles with horizontal or vertical lamellas or
with use of MKW flat or convex honeycomb mesh cover.
Both products are used to prevent the damper from colliding with unwanted objects, covering sensitive moving parts.
Application, structure and parameters of the KST grilles are described in the documentation on the website:
https://www.smay.pl/pl/product/kratki-wentylacyjne-transferowe-kst/
MKW mesh covers have openings similar to a honeycomb. There are two types of mesh cover (honeycomb mesh
cover):
a. MKW-B –short (flat) installed in wall on the side of thermal fuse
b. MKW-D –tall (convex), installed in wall on the side of the protruding thermal fuse.
Figure 3. MKW-B (flat) honeycomb mesh cover
Figure 4. MKW-D (convex) honeycomb mesh cover

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The honeycomb mesh cover are made in the following series of types according to their width*
B of the damper
Bof the mesh cover
B of the damper
Bof the mesh cover
200-250
570
701-750
1070
251-300
620
751-800
1120
301-350
670
801-850
1170
351-400
720
851-900
1220
401-450
770
901-950
1270
451-500
820
951-1000
1320
501-550
870
1001-1050
1370
551-600
920
1051-1100
1420
601-650
970
1101-1150
1470
651-700
1020
1151-1200
1520
* In a special version, the honeycomb mesh cover can be made with dimensions different from the typical ones.
7. CONDITIONS OF TRANSPORT AND STORAGE
WKP-O should be stored in cardboard boxes and/or on pallets. WKP-O should have a pre-protected actuator cardboard
box. Fire dampers should be stored indoors, providing protection against atmospheric agents, at a minimum
temperature of +5°C.
Do not allow mechanical damage of damper, that may be caused e.g. blows or dropping.
During the transport the dampers should be package in cardboard, and/or put on a pallets and should be secured
before relocating, and against weather conditions. Be especially careful particularly with the WKP-O-E-T type dampers.
After each transport, visual inspection of each fire damper must be carried out.
8. INSTALLATION TECHNOLOGY
Before installing the fire dampers, make sure that there are no damage, during transport or storage, that could block
the baffle.
Check that the baffle can be opened and closed (full opening and closing position). To open fire dampers WKP-O use
the actuator key.
The opening and closing must proceed smoothly (not stepwise).
Do not pull by baffle to open or close fire damper, it may cause permanent damage, not covered by the warranty.
Before installation verify dimensions of the gap between bottom blade and inside part of the housing under the blade,
and between top blade and inside part of housing above blade. The dimension of the gap cannot be lower than 4 mm.
Before installing, secure the fire damper, by dust and dirt, using a foil or other screening material. It can prevent
components of fire damper by damage.
Dampers to preserve of the declared resistance, insulation and smoke leakage EIS120, EIS90, should be installed on
wall, which was classified as EIS120, EIS90.
It is allowed to install WKP-O dampers in wall with other fire-resistance, should be remembered that fire-resistance in
this situation is resistance of lowest classified (in this regard) element in this system.
Ducts made of flammable and non-flammable materials can be connected to the damper. Ducts should be installed
that they cannot load the damper during fire. Ducts lengthening during fire can be compensated by support and knee.
ATTENTION: Distance between fire dampers or fire damper and construction elements must be compatible with
standard 1366-2:
a. Minimal 200 mm between fire damper, which are installed in different ventilating wires,
b. Minimal 75 mm between fire damper and construction element (wall/ceiling).

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8.1. INSTALLATION TECHNOLOGY –RIGID WALL
a. Make an opening in the wall 230 [mm] (acceptable 210 ÷ 250 [mm]) greater than the dimension B and 100 [mm]
(acceptable 80 ÷ 120 [mm]) greater than the dimension H, that is B+230 and H+100.
b. For the dampers which have height H=200 mm and H=300 mm installation opening should have height H+160
[mm] (acceptable 140÷180 [mm]).
c. Put the closed fire damper into the installation opening and support or suspend, in this way that the axis of the fire
damper baffle matches the axis of the wall, and ensure a concentricity of fire damper and installation opening. The
damper should be protected against possible undesirable stresses, which could lead to deflection of the housing,
e.g. by using assembly struts.
d. After setting the fire damper as described, fill the gap between the fire damper and the wall with cement, cement-
lime mortar or concrete.
e. After drying of the mortar (approx. 48 hours), remove used supports or suspensions, check the fire damper
correct operation and leave it in fully open position.
In order to avoid filling the holes above and below the actuator housing, the opening for the WKP damper can be made
as shown in the figure below.
Figure 5. Dimensions of the installation opening of the WKP-O dampers in rigid wall with a horizontal and with vertical
axis of rotation of the baffle, with planned cut for actuator housing. The C dimension is given in the table.
N
C
2
0
3
100
4
100
5
200
6
200
7
300
8
300
N –number of blades in damper
Mortar, cement mortar,
cement-lime mortar or concrete
Rigid wall

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Figure 6. Installing method of WKP-O fire dampers in rigid wall.
Figure 7. Installing method of WKP-O fire dampers in rigid wall

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Figure 8. Installing method of WKP-O fire dampers in rigid wall with KST grille in rigid wall structure.

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8.1.1. PROMADUCT CHANNEL
After setting the fire damper as described, and build it in wall, duct made of PROMATECT-L500 boards with 50 mm
thickness must be installed. The band around the duct must be made by PROMATECT-L500, with 50 mm thickness and
60 mm width. Connection of damper and the wall, and damper with the band must be made by K84 glue. The sides of
the duct and the band must be connected by using 4,2x90 –4,8x120 screws.
Figure 9. Installing method of WKP-O fire dampers with PROMAT boards duct.