Wildeboer FR90 User manual

Maintenance-free
FR90 re dampers in short lengths
for installation in rigid walls and ceilings and in metal stud walls
■ Sizes: DN 100 mm to DN 315 mm
■ Fire classication: EI 30/60/90/120 (ve- ho, i ↔ o) S
■ Options:
■ Protective grille DN 100 to DN 200 for air transfer applications
■Non-return valves DN 160 and DN 200
■ Limit switch for CLOSED position
User Manual 5.12 (2019-09) 1
The German original version of this document shall prevail

User Manual 5.12 (2019-09) 2 Subject to change
Series FR92K
FR90 re dampers in short lengths
Fire damper and optional accessories
• Connecting piece AS with traverse for
screw fastening the protective grille SG1
or SG2.
Sizes DN 100 to DN 200
⇒ see pages 3 and 8 to 10
Optional accessories for installation in air transfer applications
Plug connections
with lip seals
Single-piece steel sheet casing made of galvanized
sheet steel, longitudinally welded - extremely stable -
• Air-tight and smoke-tight
• Casing leak tightness class C according to EN 1751
Break-resistant damper blade
with elastomer lip seal-
Leak tightness class 3 according
to EN 1751
Large free cross-section enables:
• Maximum volume ows
• Minimum pressure loss
• Minimum sound levels Release element
• Protective grille SG1
with wide edge for instal-
lation ush with the wall.
⇒ see pages 3 and 8 to 10
• Protective grille SG2
with narrow edge for
installation with excess
lengths.
⇒ see pages 3 and 8 to 10
• Option: Duct frame RB for placing over
the connecting piece and protective grille
SG1 which protrude from the wall.
 ⇒ see pages 3 and 10
Enclosed
closing spring
actuator
• Connecting piece AR with non-return valve
on the non-operation side, with traverse for
screw fastening the protective grille SG1 or
SG2.
Sizes DN 160 to DN 200.
⇒ see pages 3 and 8 to 10

UU
25 25
150
100
d
2
8
7
4
3
6
59
10
1
Operation side
L1
Non-operation side
L2
8
User Manual 5.12 (2019-09) 3
Subject to change Series FR92K
FR90 re dampers in short lengths
Description
1 Casing
2 Damper blade
3 Damper blade seal
4 Release element with
pipe fusible link 70°C
5 Fusible link holder
on the casing
6 Enclosed
closing spring actuator
7 Bearing axis
8 Plug connection with
lip seal
9 Limit switch (optional)
10 Fusible link holder on
damper blade
DN
Fire damper Protective
grille
Afree
[m2]
∅ d
[mm]
U
[mm]
AA
[m2]
Afree
[m2]
Weight
[kg]
100 99.3 00.0068 0.004 0.565 0.0049
125 124.3 00.0110 0.008 0.685 0.0081
160 159.3 5 0.0185 0.014 0.865 0.0138
200 199.3 25 0.0293 0.024 1.105 0.0221
250 249.3 50 0.0465 0.038 1.715 -
315 314.3 85 0.0747 0.064 2.415 -
Maintenance-free FR90 re dampers according to EN 15650: FR92K series, short length 150 mm
Fire classication: EI 30/60/90/120 (ve- ho, i ↔ o) S
Declaration of performance: DoP no.: CPR/FR90/003
• FR90 re dampers are essentially made from non-combustible building
materials. Certication: Certicate MPA-BS 6000/593/18
•Use in air transfer applications is based on compatibility for approval in accordance
with the building code in each individual case. Approvals are no longer issued.
Optional accessories:
•Connecting piece AS with traverses for screw fastening
the protective grille SG1 or SG2 to the operation side
L1 or non-operation side L2. Sizes DN 100 to DN 200.
⇒ see pages 2 and 8 to 10
• Connecting piece AR with non-return valve and trav-
erse for screw fastening the protective grille SG1 or SG2
on the non-operation side L2. Sizes DN 160 to DN 200.
⇒ see pages 2, 8 to 10
•Protective grille SG1 with wide edge for installation
ush with the wall or in combination with the duct frame
RB. Sizes DN 100 to DN 200.⇒ see pages 2 and 8 to 10
•Protective grille SG2 with narrow edge for installation
ush with the connecting piece AS. Sizes DN 100 to
DN 200. ⇒ see pages 2, 8 to 10
•Duct frame RB for covering connecting piece and pro-
tective grille SG1 which protrude from the wall. Sizes
DN 100 to DN 200. ⇒ see pages 2 and 8 to 10
Single-piece casing made of galvanized sheet steel with
plug connections and lip seals on both sides.
Release element for 70°C nominal temperature.
Casing leak tightness class C according to EN 1751.
Enclosed, maintenance-free drive mechanism outside
the casing wall, sealed drive axles made of stainless
steel, with red metal bearings.
For installation in rigid walls and ceilings with a thickness
of at least 100 mm and in metal stud walls with a thick-
ness of 95 mm or more. Installation can be carried out
with the damper blade axis in the vertical or horizontal
position, or anywhere in between. Installation with the
connecting piece AR and non-return valve must be in a
vertical axis position.
Connection to ventilation ducts made from non-combus-
tible or combustible materials, or with protective grille.
Optional accessories:
• Limit switch for damper blade position CLOSED. ⇒ see page 11
Nominal sizes DN [mm]
100 - 125 - 160 - 200 - 250 - 315

LR
ps
5
10
1
Static pressure drop
p [Pa]
S
Volume flow V [m³/h]
50 100 200 300 500 1000
30
70 6000
300
3
200
Sound power level
[dB(A)]L
WA
100
125
160
200
35
40
65
70
30
45
55
60
20
25
50
Nominal size DN [mm]
v = 3 m/s
A
15
4
5
6
7
8
10
250
15
100
50
40002000
315
2
User Manual 5.12 (2019-09) 4 Subject to change
Series FR92K
Example:
Both sides with ventilation duct connection
V = 468 m³/h
DN = 160 mm
v
A = 6.5 m/s
Dps = 15 Pa
LWA = 40 dB(A)
FR90 re dampers, series FR92K, can be used at a velocity of up to 15 m/s in the
inow cross-section AA and up to 2500 Pa operating pressure.
FR90 re dampers in short lengths
Dimensioning (1) pressure drop, sound power level with ventilation duct connection on both sides
Installation on both sides with ventilation duct connection
Nomenclature
DN [mm] Nominal size
AA [m²] Inow cross-section
Afree [m²] Free cross-section re damper or protective grille
V [m³/h] Volume ow
Dps [Pa] Static pressure drop
vA [m/s] Flow velocity in inow cross-section (= inow velocity)
DL [dB] Relative sound power level to LWA
f [Hz] Octave mid frequency
LWA [dB(A)] A-weighted, area-corrected sound power level

LR
p
Sound power level
[dB(A)]L
WA
100
125
160
200
30
35
25
40
50
15
20
45
Nominal size DN [mm]
v = 1.5 m/s
A
1
2.5
3.5
4
3
2
5
10
3
Pressure drop
p [Pa]
Volume flow V [m³/h]
20
50
100 200 300 400 500
80
30 40 50 60 70 80
20
30
40
700
5
10
100
3
Static pressure drop
]aP[p
S
Volume flow V [m³/h]
50
50
100 200 300 500 1000
200
300
2000
Sound power level L
WA
[db(A)]
10
0
125
160
20
0
Nominal size DN [mm]
v = 3 m/s
A
2
4
5
6
7
8
9
10
35
40
65
70
30
45
55
60
20
25
50
70
30
LR
ps
Exhaust
air
User Manual 5.12 (2019-09) 5
Subject to change Series FR92K
FR90 re dampers in short lengths
Dimensioning (2) pressure drop, sound power level with protective grilles connection
Installation on one side with ventilation duct connection and protective grille
Installation on both sides with protective grille in air transfer applications
free incoming ow -
exhaust air-
Installation on both sides with protective grille and non-return valve in air transfer applications
DN
Volume ow [m³/h] in the opening direction
at a di󰀨erential pressure of
Leak tightness class according to
EN 1751 with closed non-return
valve and 25 to 300 Pa di󰀨erential
pressure in the closing direction
25 Pa 50 Pa
160 110 250 ≥ 2
200 270 460 ≥ 2

D
W
D
W, D *W
*
W, D
*
W
95
s s
s 15≥
s 15≥
s 15≥
User Manual 5.12 (2019-09) 6 Subject to change
Series FR92K
FR90 re dampers in short lengths
Installation in general
Installation in walls
The damper blade axis and the closing spring actuator
are shown here in horizontal position.
When using the connecting piece AR and the non-re-
turn valve, the damper blade axis and the closing
spring actuator must be installed vertically!
⇒ see page 9
Rotation of the re damper by up to 360° is also permitted
so that intermediate positions with appropriate installation
positions of the closing spring actuator are possible.
Operation sides
Vertical in ceilings Suspended in ceilings
FR90 re dampers, series FR92K,
must be installed in ≥ 100 mm thick rigid walls and ceilings, or in ≥ 95 mm thick metal stud walls, each with the
appropriate re resistance period.
The circumferential gap “s” and the installation gaps between re dampers must be ≥15 mm
wide. The llings or mortaring must be made as uniformly as possible on both sides of the
damper blade, and should be ≥ 95 mm deep overall.
Fillings are made manually or mechanically with mortar of groups II or III according to
DIN 1053 or with mortar of classes M2.5, M5, M10 or M20 according to EN 998-2 or with
the respective re protection mortar or gypsum mortar.
Gaps can be additionally lled as required. The same applies in the area of the connecting
pieces. Special llings are indicated below.
Installation on both sides
with duct connection
Installation in air transfer applications
with protective grille on both sides
Installation on one side with duct connec-
tion and with protective grille on other side
Flush with the duct Flush with the wall
Connection types
* ll out as required
Installation in ceilings

d or a

b
Wall cladding
Drywall screw Ø 3.9
Mask perforated
profiles before
mortaring
53
b
approx.+ND
25
a
U frames
from Walls
profiles
Mineral wool filling
Fill on both sides
Drywall screws 3.9
Wall cladding
User Manual 5.12 (2019-09) 7
Subject to change Series FR92K
Installation
opening a x b
or ∅d
for mortar lling:
a≥DN +25 mm
b≥DN +50 mm
d≥DN +50 mm
Installation recommendation
• Construct metal stud wall with an installation opening and apply cladding on the one side.
• Fill installation opening with mineral wool and apply a second cladding.
• Cut installation opening in claddings and mineral wool lling and chamfer them all around.
• Insert and align re damper.
• Seal remaining joints with gypsum ller or equivalent. All dimensions in mm
FR90 re dampers in short lengths
Installation in rigid walls and ceilings and in metal stud walls
Rigid walls and ceilings can be made of concrete, lightweight concrete, porous
concrete (aerated concrete) or plaster. They can be a masonry or wallboard
construction and must have a bulk density of≥ 450 kg/m³. Walls may also be
congured as re walls, shaft walls, shafts or ducts.
Required minimum thicknesses for installation of the re damper W, D[mm]:
Fire resistance period
in minutes
30
60
90
120
Rigid walls 100
Rigid ceilings 100
The metal stud walls must be clad with at least 2 layers of 12.5 mm DF gyp-
sum boards according to EN 520. GKF gypsum boards, Fermacell boards or
other equivalents must be used. The metal stud distances (spans) can be up
to 1,000 mm. Proles for metal stud walls are described in DIN 18182 and
EN 14195, constructions in DIN 18183.
Fire resistance period
in minutes
30
60
90
1201)
Metal stud wall 95
1) for installation with mineral wool
up to DN 200 only!
Installation
with mineral wool
Installation
with mortar
Installation
with mortar
Installation opening
The following is required in the wall claddings:
• U frame a x b ≥ DN + approx. 50 mm
• Installation opening ∅= DN + approx. 6 mm
• Notch = 35 x 25 mm and as follows
- on one side for a wall thickness of ≥125 mm
- on both sides for a wall thickness < 125 mm.
The space around the enclosure of the re
damper must be lled with mineral wool with a
bulk density of ≥ 100 kg/m³ up to the U frame.
The dimensions of the installa-
tion opening for mortar lling can
be as above for rigid walls.
Required minimum thicknesses
W for installation of the re
damper [mm]:

User Manual 5.12 (2019-09) 8 Subject to change
Series FR92K
FR90 re dampers in short lengths
Installation in air transfer applications with protective grille on both sides; without non-return valve
Minimum wall thicknesses for protective grille SG1 installation ush with the wall
DN
Without non-return valve ⇒ see page 8 With non-return valve ⇒ see page 9
Wall
thickness
W [mm]
Connecting piece AS
Length L1
Connecting piece AS
Length L2
Wall
thickness
W [mm]
Connecting piece AS
Length L1
Connecting piece AR
Length L2
100 ≥ 210 55 55 ≥ 210 55 55
125 ≥ 210 55 55 ≥ 210 55 55
160 ≥ 210 55 55 ≥ 210 55 55
200 ≥ 220
75
Shorten on-site to
60 mm
75
Shorten on-site to
60 mm
≥ 235
75
Shorten on-site to
60 mm
75
100
L2 L1
Installation opening
DN + 50

W
D1
SG1
SG1
AS
AS
The damper blade can be installed with the axis
in the vertical or horizontal position, or anywhere
in between; the same applies to the protective
grille and connecting pieces.
Installation with excess lengths
Ü1 and / or Ü2
Installation ush with the wall
100
L2 L1
W≥95 (100)
05+NDInstallation opening
ND
SG2
SG2
Ü1Ü2
AS
AS
Operation side
Connection length on the
• Operation side L1
• Non-operation side L2
Excess length on the
• Operation side Ü1
• Non-operation side Ü2
If Ü1 = L1, Ü2 = L2 + 100 mm - wall thickness W
When the re damper is open,
the ow direction can be from
both sides.
Longitudinal pipe seam
1
GSK29RF
SG1
AS
Non-operation side L2 Operation side L1
AS
Complete installation
Flow directions
All dimensions in mm

User Manual 5.12 (2019-09) 9
Subject to change Series FR92K
FR90 re dampers in short lengths
Installation in air transfer applications with protective grille on both sides and with non-return valve
100
L2 L1
Installation opening
DN + 50
D1
SG1
SG1
AR
W
AS
1L2L
05+ND
Installation opening
W≥95 (100)
100
ND
SG2SG2
Ü1Ü2
AR
AS
Operation side
Installation with excess lengths
Ü1 and/or Ü2
Installation ush with the wall
Connecting piece AR
with non-return valve
Install
axes in
a vertical
upright
position!
Flow direction
+5°
-5°
Non-return valve installation
Complete installation
Locking mechanism of
the non-return valve
The re damper and the connecting piece AR with
non-return valve must be installed with vertical axes. All
longitudinal pipe cuts are then horizontal. A maximum
deviation of ± 5° is permissible.
Install connecting piece AR with the non-return valve on
non-operation side L2 of the re damper.
To do so ≥ 3 mm excess length from the nished wall surface.
Non-return
valve
Connecting
piece
When the re damper is open,
a single-sided ow direction is
possible.
Connection length on the
• Operation side L1
• Non-operation side L2
Excess length on the
• Operation side Ü1
•Non-operation side Ü2
⇒ see table on page 8
If Ü1 = L1, Ü2 = L2 + 100 mm - wall
thickness W
Longitudinal pipe seam
1
GSK29RFSG1 AR
Non-operation side L2 Operation side L1
AS
Flow direction
All dimensions in mm
After installation and align-
ment, secure the non-return
valve. To do so, push the fas-
tening tabs on the connecting
piece inwards with a slot-head
screwdriver.

D
1
7
7
D
2
DN
L or L
12
L2
DN
LL
SG1
duct frame
User Manual 5.12 (2019-09) 10 Subject to change
Series FR92K
All dimensions in mm
FR90 re dampers in short lengths
Optional accessories
Protective grille SG1 with wide edge made of powder-coated,
galvanized sheet steel in the colour RAL 9010 (pure white).
Pack: Protective grille SG1, fastening screws M5 x 6 and M5 x 10,
mount and screw covers.
Pack: Protective grille SG2, fastening screws M5 x 6 and M5 x 10,
mount and screw covers.
Connecting pieces AR made of galvanized sheet steel with an
aluminium non-return valve are for tting onto the inow side re
damper plug connection tted with lip seals. Traverses are for screw
fastening the protective grille SG1 or SG2 to the connecting piece AR.
The non-return valve opens in the specied ow direction automat-
ically and with a pressure delay. It closes if there is a return ow
or no ow.
Sizes: DN 100 DN 125 DN 160 DN 200
∅D1 [mm] 125 145 185 235
Connecting pieces AS made of galvanized sheet steel are for
tting onto the re damper plug connections tted with lip seals.
Traverses are for screw fastening the protective grille SG1 or SG2
to the connecting pieces.
Sizes: DN 100 DN 125 DN 160 DN 200
Lengths L1 , L2 [mm] 55, 75 or 100 75, 100
Sizes: DN 100 DN 125 DN 160 DN 200
∅D2 [mm] 106 131 166 206
The lengths 75 mm and 100 mm of sizes DN 100, DN 125 and DN 160 can be
shortened by the customer to 55 mm, those of the sizes DN 200 can be short-
ened to 60 mm.
Protective grille SG2 with narrow edge made from galvanized sheet
steel powder-coated in shade RAL 9010 (pure white).
Sizes: DN 160 DN 200
Lengths L2 [mm] 55 75
Duct frame RB in the RAL colour 9010 (pure white) for covering
protruding connecting pieces.
Duct frames must be used together with the protective grille SG1
and can be shortened by the customer to the excess length Ü. They
are secured between the wall and protective grille SG1 with their
screw fastening.
Size DN 100 DN 125 DN 160 DN 200
Length L [mm] 50 or 100
SG1
SG2
Ü