Wildeboer Fk92k series User manual

The German original version of this document shall prevail User Manual 5.1-1 (2018-09) 1

The space-saving solution

Maintenance-free

FK90K fire dampers

■ Sizes100x100to800x250

■ Exceptionallyhighvolumeflows-Minimumpressuredrop-Extremelyquiet

■ Foruniversalusewithawiderangeofapplications

■ Fireclassification:EI30/60/90(ve- ho, i ↔o)SC10ooo

■ Hygienecertificate

■ EnvironmentalProductDeclarationaccordingtoISO 14025 and EN 15804

User Manual 5.1-1 (2018-09) 2 Subject to change

Series FK92K

FK90K fire dampers

Features and characteristics

Elastomer lip seal

- frictionless sealing -

Casing made of calcium silicate

NominalwidthB:100mmto800mm

NominalheightH:100mmto250mm

Length:260mm

LeaktightnessclassCaccordingto

EN 1751

Damper blade

canbeinstalledbothhorizontally

andvertically

- replaceable -

All-round enclosed

thermal release elements

70°Cor95°C

Option:

Corrosion-resistantreleaseelement70°C

Large free cross-section

Maximumvolumeflow

Minimum pressure drop

Extremelylowsoundpowerlevel

Connection holes for profiles from

20 mm in height

Option:    

Profileswithepoxyresinpowder coating

Thermal-mechanical release

mechanism for single

handed operation

Option:

Electric actuators

Control openings (inspection openings)

forviewingbothsidesofthe

damper blade

Option:

Factory-mountedinstallation subframe ER5 made of

calcium silicate for sliding ceiling connection in metal

stud walls with cladding on both sides.

Fully enclosed:

•Operation unit

•Release mechanism

•Release element

UserManual5.1-1(2018-09)3Subject to change Series FK92K

Casingandexchangeabledamperblademadeofabra-

sion-andcorrosion-resistantcalciumsilicate,galvanized

steel components. Connection profiles for connections

withscrews,clampsandslidingrails.Permanentlydura-

bleelastomerlipsealsinwallsofcasing.Leaktightness

classCaccordingtoEN1751.

Option: galvanized steel components (connection pro-

files)alsowithepoxyresinpowdercoating.

Enclosed, maintenance-free drive mechanism in the

area of the casing wall as a self-locking transmission

for break-proof torque transmission. Sealed drive axles

made of stainless steel, with red metal bearings. Ther-

malreleasemechanismsfor70°Cor95°Cnominaltem-

perature.Theoperationunitscanbe actuated manually

orelectrically.⇒see page 4

Release mechanisms, operation units and electric actua-

torsareenclosedandfittedwithspringreturns.Theyare

maintenance-free, can be connected in a form-locking or

force-fittingmanner,areeasytoreplaceandcanbeeas-

ilyretrofittedasrequired.

For installation with horizontal or vertical damper blade

axles. Air inflow from any connection side. Connection

to ventilation ducts made of non-combustible or combus-

tible materials, including protective grilles.

Options:

•With installation subframe ER5 for sliding ceiling

connections with drops of up to 40 mm in metal stud

wallswithcladdingonbothsides.  

⇒seepages6,22to24,35

•With set of gaskets DS for installation remote from

rigidwallsandceilingsandmetalstudwalls. 

⇒seepages6,28to33,35

FK90K fire dampers

Description

Rigid wall

Rigid ceiling

Suspended ceiling

Fire-resistant wall

FK90K fire dampers

attached to adjacent walls

and/or ceilings

Minimum dimension h = 145 mm, whenusingoneFK90KfiredamperwithH=100mm.

Inthisexampleh≥ 290mmwithtwoFK90Kfiredampersinastackedarrangement.

Particularly suitable in situations where limited space

is available for installation

Exampleofinstallationinsuspendedceiling.

The same method can be used for raised floors.

Ventilationductsarenotshown.

Maintenance-free FK90K fire dampers according to EN 15650

Fireclassifications: EI 30/60/90 (ve- ho, i ↔o) S C10ooo

Declarationofperformance: DoP no.: CPR/FK90K/002

EnvironmentalProductDeclarationISO14025,EN15804:EPD-WBB-20130080-IBA1-DE

Additional national approvals in

Germany:

• Buildingmaterials:Z-56.4212-993

FK90K fire dampers are essen-

tiallymadefromnon-combustible

building materials.

Widths B[mm]: 100-150-200-250-300

  400-500-600-700-800

Heights H[mm]:100-125-150-175-200-225-250

Length L[mm]: 260

All dimensions can be combined.

FK90K fire dampers in these sizes achieve fire resist-

anceperiodsofupto90minutesiftheyareinstalledin

accordancewiththefollowingstipulations. 

Installationtypesinorremovedfromrigidwallsandceil-

ingsandmetalstudwallswithaminimumthicknessand

fire resistance period are possible.

Ifthewalls,ceilingshaveafireresistanceperiodofless

than 90 or 60 minutes, the fire resistance period of the

FK90K fire damper is reduced accordingly; partly if the

minimumthicknessislower.

User Manual 5.1-1 (2018-09) 4 Subject to change

Series FK92K

Enclosed release element

FK90K fire dampers

Release mechanisms and actuators

Option: Electric spring return actuator

 with70°Creleaseelement;protectionclassIP54.

M220-9/H 230 V AC;9,2VA;Imax≤2 ms=0.27A.

M24-9/H 24 V AC/DC;6.1 VA/3.5 W;Imax≤2 ms =3.5 A.

 Runtime:Opening≈ 60s,closing≈ 21 s.

 CLOSED/OPENpositionindicatorsvialimitswitchfor

5 A at ≤240 V AC.

 Halogen-freeconnectioncable;0.9mlong;

2 x0.75 mm²and6 x0.75mm².TheAMPconnector

plugs are detachable.

Option: with95°Creleaseelement.

Thermal-mechanical release mechanism - Standard -

with70°Creleaseelement;protectionclassIP54.

Option: withcoated70°Creleaseelement.

Option: withcoated95°Creleaseelement.

Option:withlimit switch

E Changeoverwithgold-platedcontactsfor5 A at

250 VACor24 VDC;protectionclassIP67; 

1msiliconefreeconnectioncable3 x0.34 mm².

 Oneortwocanbepluggedinforthe CLOSEDand/orOPEN

position indicator instead of blind caps.

Option: with remote release, mounted on thermal-mechani-

cal release mechanism. ⇒seepage35

FK90K fire dampers, series FK92K, are fitted with maintenance-free thermal-mechanical release mechanisms or

withthermal-electricalreleasemechanismsonthespringreturnactuators.Release occurs at a nominal temperature

of 70°C or 95°C.Coatedreleaseelementsprovideincreasedcorrosionprotection.

Electricspringreturnactuatorsalsoclosethefiredampersifthesupplyvoltageisinterrupted.Theyreopenthefire

dampers as soon as the voltage is present again.

Release mechanisms and operation units can be replaced on site!

Enclosed release

element

can be replaced

from the front.

Blind cap can

bereplacedwith

the OPEN limit

switch.

Manual release

“Red button”

Lever for opening the

fire damper.

Insertedlimit

switch CLOSED.

Option: Electric spring return actuator - Standard -

 with70°Creleaseelement;protectionclassIP54.

M220-10/H 230VAC;6.5VA/3W; Imax≤5ms=4A

M24-10/H 24VAC/DC;4VA/2.5W; Imax≤5ms=8.3A

 Runtime:Opening<60s,closing≈20s

 CLOSED/OPENpositionindicatorsvialimitswitchesfor0.5A

at≤250VACorfor1mAupto3Aat5upto250VDC.

 Halogen-freeconnectioncable;1mlong;2x0.75mm²and

6x0.75mm².TheAMPconnectorplugsaredetachable.

Option: with95°Creleaseelement.

Buttonforfunctioncheck

User Manual 5.1-1 (2018-09) 5Subject to change Series FK92K

Actuator underneath the ceiling

Actuator above the ceiling

Vertical installation positions

D=ceiling

Horizontaldamperbladeaxle

Filling F1

(as required) Metal anchor M6

adjacent rigid wall

for attachment

FK90K

corner bracket

Fastening to walls and ceilings to be protected

Fasten fire dampers in walls and ceilings so they are pro-

tected from shearing.

This is done in or on the walls and ceilings to be protected.

With FK90K fire dampers, fastening to adjacent walls and

ceilings is also possible.

Filling F1

⇒seepage16

Visible side

for attachment by

screw mounting

FK90K corner bracket

Use of FK90K angle bracket

⇒seepages14to33

Fastening to adjacent walls, ceilings, floors

Filling F1

adjacent rigid

ceiling

Metal anchor M6

for attachment

FK90K

corner bracket

Withlargerwall thicknesses,the FK90K

angle brackets on the reverse side are

within the walls. Openings in the wall

mustbesealedusingasuitablematerial;

mineral wool or gypsum joint filler as

applicable.

Horizontal installation positions W=Wall

Damperbladeaxle

FK90K corner bracket

can also be turned through 90° and

mounted on the operation side.

⇒seepage3

Operationside Non-operation

side

horizontal vertical

The release mechanisms and actuators are

alwayslocatedtotheH-sideonthecasing

of the fire dampers.

⇒seepages6and7

Actuator

right

Actuator

above

Actuator

left

Actuator

bottom

FK90K fire dampers

Specialinstallationtypes,installationlocations,hygiene

FK90K fire dampers

•

satisfythehygiene requirementsaccordingtoVDI6022-1,

VDI3803-1,DINEN13779

• do not promote the growth of microorganisms1) (fungi,

bacteria). This reduces the risk of infection for people and

alsothenecessarycleaninganddisinfectionwork!

• are resistant to disinfectants2)

1) The corresponding resistance of the materials to fungi and bacte-

ria was verified by testing the microbial metabolic potential according to

DINENISO846forallmaterialsintheFK90Kfiredampers.

The resistance to disinfectants of the materials in the FK90K fire dampers

was tested with the disinfectant groups of active ingredients alcohol and

quaternary compounds.These disinfectantsare on thelist by the Robert

KochInstitute,andwereusedinaccordancewiththespecificationsinthelist

ofdisinfectantsbytheDisinfectantsCommissionintheGermanAssociation

forAppliedHygiene(VAH).IthasbeenverifiedthatFK90Kfiredamperscan

withstandnormaluseofdisinfectantsanddisinfectionmethods.

UserManual5.1-1(2018-09)6 Subject to change

Series FK92K

FK90K fire dampers

Datasheet(1)

All dimensions in mm

110

Connection profile

for screw connection M6, suitable for

clamp connection and sliding rails

* Two control openings below the release mechanism

Manual release

Casing

Marking for

installation area

260

B + 20

Outer dimension B + 63

02 H

02+H

34+HOuter dimension

Control openings*

Manual release

Manual lever

Enclosed transmission

in the outer wall

Limit switch

E-OPEN (optional)

Limit switch

E-CLOSED (optional)

Thermal-

mechanical

release mechanism

Operation unit

Control openings*

100

260

110 10

55+H

Set of gaskets DS

FK90K fire damper with installation subframe

ER5 made of calcium silicate, for sliding ceiling

connections with drops up to 40 mm in metal stud

walls with cladding on both sides.

Studprofiledepthss=50mmto125mm.

Factory-assembled.    

⇒seepages22to24,35

Weightallowance+70%inadditiontostandardweight.

⇒see page 28

FK90K fire damper with set of gaskets DS

Forinstallationremotefromrigidwallsandceilingsand

frommetalstudwallswithcladdingonbothsides.

⇒seepages28to33,35

115

260

110

Calcium silicate

installation subframe ER5

86 48+H

34+H

User Manual 5.1-1 (2018-09) 7Subject to change Series FK92K

Size-independent excess lengths T U

Thermal-mechanical release mechanism 95 -

ActuatorsM220-10/H,M24-10/H 75 140

ActuatorsM220-9/H,M24-9/H 90 120

All dimensions in mm

Operating range, closing and opening

•FK90Kfiredampersaresuitableforvolumeflowsupto7000m³/h,inflowvelocitiesofupto12m/sandoperating

pressuresofupto1500Pa.

•Theapplicationboundariesmarkedinthenomogramsmustbecompliedwith.⇒ see pages 8 to 11

•FK90Kfiredampersarequick-closing,apartfromtheversionswithelectricactuators.Duetotheflowdynamics,

if the fire damper is triggered at high inflow velocities, this may cause pressure surges accompanied by

multiplication of operating pressures, which in turn may lead to considerable damage to the ventilation and air

conditioningsystem.Additionally,whenshut-offdampersareclosed,thevolumeflowsaredistributedamongother

paralleldampersthatarestillopen.Thismayleadtoexcessivestress,inparticularathighoperatingpressures,

large volume flows and large cross-sections. Electric actuators should be used under such conditions. These

actuatorsclosethefiredampersrelativelyslowlyandinaddition,deactivationofthefancanbetriggeredviathe

OPENlimitswitch.

•Thetorquesoftheelectricactuatorsaresufficientforallfiredampersizes,whichmeanstheycanbefullyopened

whenthefanisinoperation.

•Wheneverpossible,itmustbeensuredthattheinflowsandoutflowsatthefiredampersarethesame.

•F

K90KfiredamperswithelectricactuatorcanbeusedforOPEN/CLOSEDvolumeflowcontrol.

Maximum excess lengthsofmechanicalandelectricalequipment

parts.

Additional space must be

provided for installation,

electrical connections and

maintenance;observethe

cableentrypoints.

Damper blade:Itissituated

inside the fire damper casing

even in the open position.

Thusnoexcesslength!

Toallowaccesstotherelease

mechanisms and actuators

for operational reasons, a

clearance, in addition to "T",

fromadjacentwalls,ceilingsor

other fire dampers of 400 mm

is recommended.

B + 20

Outer dimension B + 63

02 H

02+H

34+HOuter dimension

110

260

FK90K fire dampers

Datasheet(2)

Seal

Sliding rail or

sliding clip

Ventilation duct with

flange for sliding rail

Seal

Sliding rail or

sliding clip

Ventilation duct with

flange for sliding rail

Hexagon screw M6

FK90K

Ventilation duct with flange

Seal

Ventilation duct connections

• withscrews • withslidingrails

• withscrewterminals

Thermal-mechanical release mechanisms are

markedwithV3 or V5. The height-

dependent allocations must not be

changed!

H

<175 V5

≥175 V3

User Manual 5.1-1 (2018-09) 8 Subject to change

Series FK92K

100

150

200

300

500

700

1000

Volume flow V [m³/h]

1500

2000

3000

5000

6000

4000

1 2 3 5 7 10 20 30

100

200 300 400 600 800

Width [mm]

Pressure drop p [Pa]

Flow velocity v [m/s]

2.5

100

125

150

175

225

250

200

Height H [mm]

125

100

150

175

200

225

250

7000

50 150 250 500 700

FK90K fire dampers Dimensioning(1)

Pressuredropwithventilationductconnectiononbothsides

Free cross-section Afree [m²]

H\W100 150 200 250 300 400 500 600 700 800

 100 0.010 0.015 0.020 0.025 0.030 0.040 0.050 0.060 0.070 0.080

 125 0.013 0.019 0.025 0.031 0.038 0.050 0.063 0.075 0.088 0.100

 150 0.015 0.023 0.030 0.038 0.045 0.060 0.075 0.090 0.105 0.120

 175 0.018 0.026 0.035 0.044 0.053 0.070 0.088 0.105 0.123 0.140

 200 0.020 0.030 0.040 0.050 0.060 0.080 0.100 0.120 0.140 0.160

 225 0.023 0.034 0.045 0.056 0.068 0.090 0.113 0.135 0.158 0.180

 250 0.025 0.038 0.050 0.063 0.075 0.100 0.125 0.150 0.175 0.200

Inflow cross-section AA[m²]

H\W100 150 200 250 300 400 500 600 700 800

 100 0.008 0.012 0.016 0.020 0.024 0.032 0.040 0.048 0.056 0.064

 125 0.011 0.016 0.021 0.026 0.032 0.042 0.053 0.063 0.074 0.084

 150 0.013 0.020 0.026 0.033 0.039 0.052 0.065 0.078 0.091 0.104

 175 0.016 0.023 0.031 0.039 0.047 0.062 0.078 0.093 0.109 0.124

 200 0.018 0.027 0.036 0.045 0.054 0.072 0.090 0.108 0.126 0.144

 225 0.021 0.031 0.041 0.051 0.062 0.082 0.103 0.123 0.144 0.164

 250 0.023 0.035 0.046 0.058 0.069 0.092 0.115 0.138 0.161 0.184

Nomenclature ⇒ see page 10

User Manual 5.1-1 (2018-09) 9Subject to change Series FK92K

100

200 300 400 600 800

Width [mm]

Height H [mm]

125

100

150

175

200 225

250

100

150

175

225

250

Height H [mm]

200

1000

2000

3000

5000

7000

Sound power level L [dB(A)]

300

500

Volume flow V [m³/h]

150

200

Flow velocity v [m/s]

4000

6000

125

700

1500

500 700250150

FK90K fire dampers Dimensioning(2)

Soundpowerlevelwithventilationductconnectiononbothsides

Octave mid frequency [Hz]

Relative sound power level

Relative sound power level DL

Example:

 V = 1500 m³/h

 B = 400 mm

 H = 225 mm

AA = 0.09 m²

Afree = 0.082 m²

Dps = 2.7 Pa

vA = 4.6 m/s

LWA = 27 dB(A)

Sound power level LW-Octfortheoctavemidfrequencies

f [Hz] 63 125 250 500 1000 2000 4000 8000

LWA [dB(A)] 27 27 27 27 27 27 27 27

4.6m/s

[dB] 11 9 3 -2 -8 -15 -24 -28

LW-Oct [dB] 38 36 30 25 19 12 3 -

FlowvelocityvA[m/s]

[m/s]

User Manual 5.1-1 (2018-09) 10 Subject to change

Series FK92K

FK90K fire dampers Dimensioning(3)

Pressuredropwithventilationductconnectionononeside,andfreeincomingflowwithprotectivegrille

300

500

1000

Volume flow V [m³/h]

700

2000

3000

4000

5000

1 2 3 5 10 20 30

100

200 300 400 600 800

Width [mm]

Pressure drop p [Pa]

Flow velocity v [m/s]

2.5

100

125

150

225 250

Height H [mm]

125

100

150

175

200

225

250

100

200

1.5

175

440

150

50 500 700250150