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DKR - Multi-nozzle Ceiling Diffuser
Hal
ton
re
serv
es
the
rig
ht
to a
lte
r p
rod
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Halton DKR Multi-nozzle Ceiling Diffuser
•Horizontalairsupply,verticalairpatternsarealso
possible
•Supplyairpatterncanfreelybedirectedinuptofour
directionsoralternativelyradiallyasswirljet
•Directionalnozzleswithtwo-slotairpathefficiently
deflecttheairstreams
•Supplyairjetvelocityisefficientlyreduceddueto
highmixingeffect
•Detachablefrontplateallowscleaningofthe
terminalunitandsupplyductwork
Accessories
•Balancingplenumwithmeasurementand
adjustmentfunctions.
MATERIAL AND FINISHING
PART MATERIAL NOTE
Frame Galvanised steel
Front panel Steel
Nozzle Polyacetal POM Colour alternativesWhite RAL 9010Grey RAL 7040Black
Coupling sleeve Galvanised steel
Gasket Rubber compound
Finishing Painted White RAL 9010 Special colours available
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DKR - Multi-nozzle Ceiling Diffuser
Hal
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re
serv
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the
rig
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to a
lte
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Halton DKR Multi-nozzle Ceiling Diffuser
LpA values presented with room attenuation 4 dB (red 10m2 - sab). When using room attenuation 8 dB (red 25m2 - sab): LpA - 4dB.
Pa Supply air cooling capacity, WLpA A-weighted sound pressure level, reduced by total equivalent absorption surface of 10m2, dB(A) red 10m2 - sabDPst Static pressure drop, Pa
DPtot Total pressure drop, PaLd Distance from the supply unit, at which air jet detaches from ceiling, mLmin Minimum distance between central lines of two supply units, m (V3 = 0,25m/s at 1.8m height)L0.2 Isotermal throw length, m when residual velocity of supply air jet 0,2 m/sRoom temperature (Tr) = 24 °CSupply air temperature (Ta) = 14 °CRoom height = 2,8 m
QUICK SELECTION
Pa 240 360 480 600 720 960 1200 1440 1680 1920 2400 3000qv l/s 20 30 40 50 60 80 100 120 140 160 200 250
m3/h 72 108 144 180 216 288 360 432 504 576 720 900
DKR-100-300(R4) LpA 19 31 40 47DPst 6 13 23 36DPtot 10 22 39 61Ld - - - -Lmin - - - -L0.2 1,4 2,6 3,8 4,8
DKR-125-300(R4) LpA 26 35 42 48DPst 10 18 28 41DPtot 14 25 38 55Ld - - - -Lmin 1,0 1,6 2,6 3,6L0.2 2,2 3,0 3,8 4,6
DKR-160-300(R4) LpA 21 29 36 42 51DPst 10 18 27 40 70DPtot 11 20 31 45 80Ld 2,2 3,0 3,4 3,8 4,8Lmin - - - - -L0.2 2,3 3,6 4,6 5,4 7,2
DKR-160-450(R4) LpA 22 28 38 46DPst 4 6 11 18DPtot 8 12 21 32Ld - - - -Lmin - - - -L0.2 2,4 3,0 3,8 4,8
DKR-200-450(R4) LpA 21 30 37 43DPst 5 10 15 22DPtot 8 13 21 30Ld 2,6 3,0 3,6 4,2Lmin 1,6 2,8 4,0 5,2L0.2 3,0 4,0 5,0 6,0
DKR-200-600(R4) LpA 27 34 41 46DPst 6 9 13 17DPtot 9 15 21 29Ld 3,0 3,6 4,0 4,4Lmin 2,4 3,6 4,6 5,8L0.2 3,8 4,6 5,6 6,6
DKR-250-450(R4) LpA 26 33 39 44 49DPst 10 16 23 31 41DPtot 12 19 27 36 47Ld 2,4 3,0 3,6 4,2 4,6Lmin - - - - -L0.2 3,8 5,2 6,4 7,4 8,4
DKR-250-600(R4) LpA 21 28 34 40 45 53DPst 5 8 11 15 19 30DPtot 6 10 14 20 26 40Ld 2,6 3,0 3,4 4,0 4,2 5,0Lmin 2,0 2,8 3,8 4,8 5,8 7,8L0.2 3,2 4,2 5,0 5,8 6,6 8,4
DKR-315-600(R4) LpA 24 30 35 39 47 56DPst 8 11 15 20 31 48DPtot 9 12 17 22 35 54Ld 2,4 2,8 3,0 3,4 4,2 4,8Lmin 2,6 3,6 4,6 5,6 7,4 9,8L0.2 4,0 4,8 5,6 6,4 8,0 10,0
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ØW
ØD
ØW1
H8
63
NS ØW ØW1 H ØD
100-300 299 256 67 99
125-300 299 256 67 124
160-300 299 256 67 159
160-450 449 406 89 159
200-450 449 406 89 199
250-450 449 406 89 249
200-600 599 519 89 199
250-600 599 519 89 249
315-600 599 519 89 314
DKR - Multi-nozzle Ceiling Diffuser
Hal
ton
re
serv
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the
rig
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to a
lte
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DIMENSIONS
ACCESSORIES
ACCESSORY CODE DESCRIPTION
Balancing plenum TRI For balancing & equalising the airflow and attenuating the duct noise
Function
•Airissuppliedbothhorizontallyandverticallyinto
thespacethroughthefrontpanelofthediffuser.
•Thesupplyairpatterncanbedirectedradiallyinthe
direction(s)desired(1,2,3and4)bymanuallyrotating
thenozzles.
•Horizontalswirljetandverticalairpatternscanalso
beachievedbyadjustingthenozzles.
•Directionofthesupplyairhasnoeffectonthe
pressuredroportheairflowrate.
•Therecommendedmaximumairtemperature
differencebetweensupplyandroomairis10°C.
•Themaximumrecommendedtemperaturefor
plasticmaterialis60°C.
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7
ØDØD1
ØW2
DKR (ØD) ØD1 TRI ØW2 H1
100-300 100 TRI-100-100 265 293-343
125-300 100 TRI-100-125 265 293-343
160-300 125 TRI-125-160 265 323-373
160-450 160 TRI-160-160 415 385-435
200-450 160 TRI-160-200 415 385-435
250-450 200 TRI-200-250 415 435-485
200-600 200 TRI-200-200 530 435-485
250-600 250 TRI-250-250 530 499-549
315-600 250 TRI-250-315 530 499-549
DKR - Multi-nozzle Ceiling Diffuser
Hal
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the
rig
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to a
lte
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Installation
Thediffuserisconnectedeitherdirectlytotheduct
byscrewingoralternativelybyrivetingtotheTRI
balancingplenum.
Directtheflowpatterninthedesireddirectionsby
individuallyrotatingeachnozzleinordertomeetthe
requiredspecification.
Itisrecommendedthatasafetydistanceupstreamof
thediffuserisminimum3xD.
Installation with plenum TRI
ThecollarofTRIplenumcanbeinstalledeither
internallyintheplenumorexternallyatthebottom
oftheplenum.Theheightoftheunitispresentedin
thetablebelowfortheexternalinstallation.When
thecollarisinstalledinternally,thetotalheightH1is
reducedby60mm.
Thetechnicalperformanceforthecombinationof
supplyairdiffuserandTRIplenumispresented
separatelyforthetwodifferentinstallations.SeeHIT
Designsoftware.
5
q = k pv m ∆*
TRI/S >8XD min 3XD
100 6.0 7.5
125 9.9 12.6
160 16.9 21.9
200 28.3 31.0
250 47.9 51.5
315 78.6 -
DKR - Multi-nozzle Ceiling Diffuser
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Adjustment
ItisnotpossibletoadjustairflowintheDKRitself.
Inordertoenableairflowadjustmentand
measurementofairflowrateitisrecommendedto
connectthediffusertoTRIbalancingplenum.The
supplyflowrateisdeterminedbyusingtheMSM
measurementandadjustmentmodule.
Openthefrontpanelandpassthetubesandcontrol
spindlethroughtheplasticnozzle.Replacethefront
panel.
Measurethedifferentialpressureusingamanometer.
Theflowrateiscalculatedusingtheformulabelow.
Adjusttheairflowratebyrotatingthecontrolspindle
untilthedesiredsettingisachieved.Lockthedamper
positionwithascrew.
Replacethetubesandspindleintheplenumand
replacethediffuserfrontpanel.
Kfactorforinstallationswithdifferentsafetydistances
(D=ductdiameter)
Servicing
Eachnozzlecaneasilyberemovedbypressingthe
stoppersandthenpushingthenozzlethroughthe
frontpanel.Wipethenozzlesandthefrontpanelwith
adampcloth.Thenozzlesarereplacedintothefront
platebypushing.Replacethefrontpanel.
Option with balancing plenum
Removethemeasurementandadjustmentmodule
bypullinggentlytheshaft;(notthecontrolspindleor
measurementtubes!).
Wipethepartswithadampcloth,insteadof
immersinginwater.
Remountthemeasurementandadjustmentmodule
bypushingtheshaftuntiltheunitmeetsthestopper.
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DKR - Multi-nozzle Ceiling Diffuser
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the
rig
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to a
lte
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Pressure drop, throw pattern and sound data
Selection example : Requirements : qv = 100 l/s Selection : DKR-200-600 LpA < 35 dB(A) LpA < 34 dB(A) L0,2 < 4,0 m L0,2 < 3,8 m Swirl pattern DPtot = 15 Pa
DKR-160-300, DKR-160-450,
swirl pattern
DKR-200-450, DKR-200-600,
swirl pattern
DKR-250-450, DKR-250-600, DKR-315-600,
swirl pattern
DKR-100-300, DKR-125-300,
swirl pattern
Note:Recommended minimum supply temperature, 10 °C below room.
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DKR - Multi-nozzle Ceiling Diffuser
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Note:Recommended minimum supply temperature, 10 °C below room.
Pressure drop, throw pattern and sound data
DKR-160-300, DKR-160-450,
4-way pattern
DKR-200-450, DKR-200-600,
4-way pattern
DKR-250-450, DKR-250-600, DKR-315-600,
4-way pattern
DKR-100-300, DKR-125-300,
4-way pattern
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DKR - Multi-nozzle Ceiling Diffuser
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SOUND LEVEL DATA
DKR qv DPst DPtot F (Hz) LpA NR NC
(l/s) (m3/h) (Pa) (Pa) 63 125 250 500 1000 2000 4000 [dB(A)]
DKR-100-300 25 90 9 15 33 26 27 30 23 5 3 25 22 20
29 104 12 20 35 30 32 35 29 13 4 30 27 25
34 122 17 28 37 34 36 40 34 20 12 35 32 31
40 144 23 39 38 37 41 44 40 28 21 40 37 36
DKR-125-300 29 104 9 13 36 26 29 30 22 3 3 25 22 20
34 122 13 17 37 30 34 35 28 11 3 30 27 25
40 144 18 24 38 33 38 40 34 19 7 35 32 30
46 166 25 33 39 37 43 44 39 26 15 40 37 36
DKR-160-300 34 122 13 15 37 26 29 29 24 7 3 25 21 19
41 148 18 21 38 30 33 34 30 16 3 30 26 24
49 176 26 29 39 34 37 38 36 24 11 35 32 30
57 205 36 40 40 37 40 42 41 32 20 40 37 36
DKR-160-450 55 198 5 10 39 33 31 30 19 3 3 25 22 20
63 227 7 13 39 36 36 35 25 10 3 30 27 26
73 263 9 17 40 39 40 40 31 17 7 35 32 31
85 306 13 23 40 42 45 45 37 25 14 40 37 36
DKR-200-450 69 248 7 10 44 30 31 29 22 3 3 25 21 19
81 292 10 14 45 33 35 34 28 11 3 30 26 25
94 338 13 18 46 37 39 39 34 19 7 35 31 30
109 392 18 25 47 40 43 45 39 27 14 40 37 36
DKR-200-600 75 270 5 8 40 32 31 30 19 3 3 25 21 20
87 313 7 11 42 35 36 35 26 9 3 30 27 25
101 364 9 15 43 38 40 40 32 18 6 35 32 30
117 421 12 20 45 40 45 45 38 26 12 40 37 36
DKR-250-450 77 277 10 11 36 28 32 29 22 4 3 25 21 19
91 328 13 15 37 31 35 34 29 13 3 30 26 25
106 382 18 21 38 35 39 39 34 21 8 35 31 30
123 443 24 28 39 38 42 44 40 28 15 40 36 35
DKR-250-600 91 328 6 8 42 31 32 29 21 3 3 25 21 19
105 378 8 11 43 34 36 34 26 8 3 30 26 25
122 439 11 15 44 37 40 40 32 16 4 35 32 31
141 508 15 20 45 40 44 45 38 24 7 40 37 36
DKR-315-600 103 371 8 9 43 28 31 29 21 3 3 25 21 19
121 436 11 13 44 32 35 35 28 10 3 30 27 25
140 504 15 17 45 35 38 40 34 18 5 35 32 30
163 587 20 23 45 38 42 45 39 26 10 40 37 36
LpA values presented with room attenuation 4 dB (red 10m2 - sab). When using room attenuation 8 dB (red 25m2 - sab): LpA - 4dB.NR/NC noise criteria
ATTENUATION DATA
DL[dB]
f[Hz]
63 125 250 500 1000 2000 4000 8000
DKR-100-300(R4) 29 24 16 10 16 10 10 9
DKR-125-300(R4) 28 22 16 9 14 12 10 10
DKR-160-300(R4) 25 20 14 9 11 11 10 10
DKR-160-450(R4) 26 20 12 10 12 8 9 9
DKR-200-450(R4) 24 17 12 8 11 8 9 9
DKR-200-600(R4) 25 17 11 10 9 8 9 9
DKR-250-450(R4) 22 16 11 7 11 8 10 10
DKR-250-600(R4) 22 16 10 8 9 9 10 10
DKR-315-600(R4) 20 14 9 7 9 9 10 10
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DKR - Multi-nozzle Ceiling Diffuser
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Suggested Specifications
Thediffusershallbemadeofpaintedsteelwitha
white(RAL9010)standardcolour.
Airissuppliedthroughplasticnozzles,whichshall
haveatwo-slotdesigninordertoensureefficient
mixingofsupplyair.
Nozzlesshallbeindividuallyadjustabletoprovidehigh
flexibilityfortheadjustmentofthethrowpattern.
Option 1; no balancing plenum
Thediffusershallhaveahotgalvanisedsteelframe
withaspigotwithintegralgasketforconnectionto
circularduct.
Thediffusershallhaveadetachableperforatedfront
panelthatprovidesaccesstotheduct.
Option 2; option with balancing plenum
Thediffusershallbeconnectedtoabalancingplenum
equippedwithameasurementandadjustment
module.
Thediffusershallhaveadetachablefrontpanelthat
providesaccesstothemeasurementandadjustment
moduleintheplenum.
Thebalancingplenumshallhaveaspigotwithintegral
gasketforair-tightductconnection.
Thebalancingplenumshallcomprisesound
attenuationmaterialmadeofpolyesterfiberwitha
washablesurface.
Product Code
DKR-D-A
D=Diameterofductconnection
100,125,160,200,250,315
A=Diffusersize
D=100:300
D=125:300
D=160:300,450
D=200:450,600
D=250:450,600
D=315:600
Specificsandaccessories
CO=Colour
W White
X Specialcolour
Codeexample
DKR-100-300,CO=W
Subproducts
TRI Plenum(Diffusers)
Recommended