quick selection guidegrillesdiffusors
TRANSCRIPT
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Quick Selection Guide
Issue Date November 2013
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Quick Selection
This selection guide has been designed to allow quick and simple
selection for a broad range of TROX Grille and Diffuser product. Full product
and system details for these and other TROX equipment can be found on our
website www.troxuk.co.uk.
As part of our commitment to a collaborative design process our local Sales Engineersare available to offer assistance and advice on these and other TROX systems and product.
To contact you local engineer call 01842 754545.
In addition to the Grille and Diffuser product in this guide, TROX offer a complete range of air
distribution products and systems, these include:
Active Chilled Beams
Passive Chilled Beams
Multi Service Chilled Beams (MSCB)
Chilled Ceilings
Fan Coil Units
Acoustics
Filtration
VAV Terminal Units
Labcontrol
Dealer Desk Cooling
Low to High Density Cooling
TROX UK Ltd
Caxton Way
ThetfordNorfolk IP24 3SQ
Tel: +44 (0) 1842 754545
Fax: +44 (0) 1842 763051
E-Mail: [email protected]
www.troxuk.co.uk
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Page
Section1 - Adjustable GrillesAT/VAT 04
Section 2 - Extract GrilleAE 06
Section 3 - Floor GrillesAFG 08FB 10
Section 4 - Linear GrillesAH/WAP/AF 12
Section 5 - Transfer GrillesAGS/LCG/LVV40 14
Section 6 - Slot DiffusersVSD50 - High Capacity 16VSD35 18ALS-25 - High Capacity 20ALS-20 22Slot Diffuser Plenum Boxes 24
Section 7 - Fixed Blade Linear Diffuser ADM 26
Section 8 - Louvre Faced DiffusersSquare Diffuser ADT 28ADLQ 32Circular Diffuser ADLR 34
Section 9 - Perforated Face Diffuser ADLQL 36
Section 10 - Disc Valves
LVS/ZLVS 38
Section 11 - Swirl DiffusersSelection Methodology 40SDW 42VDW 44FD 46DCS 48TDF 50TDV 52RFD 54
Section 12 - Jet NozzlesDUK 56AJA 58
Contents
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6 4 3
2
Adjustable Grille Type VAT Supply or return air grille with individually adjustable vertical aerofoil blades. Front border 32mm wide with visible screw fixing
(border counter-punched). Available on request with concealedfixing and sub frame.
Adjustable Grille Type AT Supply or return air grille with individually adjustable horizontal aerofoil blades. Front border 32mm wide with visible screw fixing(border counter-punched). Available on request with concealedfixing and sub frame.
Sizes AvailableMinimum size 150 x 100. Maximum Size 1200 x 600. Standardincrements 50mm.
For full details see publication 1/1.1/B/...
Order Code
Rear Assembly
S E C T I
O N
1
A d j u s t a b l e G r i l l e s
04
Type
AT = Horizontal front blade
VAT = Vertical front blade
Rear Assemblies
A = Grille face only
AG = Rear opposed blade damper
D = Rear adjustable blades
DG = Rear adjustable blades and damper
0 = No subframe
B30 = 75mm
subframe bracket
Fixing Variant
0 = Without (screw fix)
S11 = With (secret fix)
X = Without flange drilling or secret fix
L x H (mm) Powder coat finish
AT - AG 800 x 200 B30 S11 P3 RAL 9010 20% Gloss / / / / / /
1 0 7 7
5
H /
L
H +
2 2 / L +
2 2
H +
4 5 / L +
4 5
1 6 , 7
1 0 7 7
5
...-AGOpposed blade action volume control damper, adjustable from the front face.
...-DA set of individually adjustable vertical airpattern control blades. For type VAT theseblades are horizontal.
...-DGVolume control dampers as ...-AG plus a setof individually adjustable vertical air patterncontrol blades.
Type AT · VAT
Type AT shown
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Performance DataGrille with ceiling effect (grille installed within 300mm of ceiling). Throw is the distance from sidewall grille to anaverage velocity of 0.35 m/s. The minimum distance between multiple units must be 20% of Throw.
Throw assumes direction blades set at 45° bladedivergence. For 0° blade divergence multiple throw by1.4 and divide pressure drop by 1.1.
By limiting effective jet velocity to 7 m/s all grille sizesshown meet NC35 assuming 8dB room attenuation andfully open damper.
S E C T
I O N
1
A d j u s
t a b l e G r i l l e s
05
Subframe Secret Fixing Detail
75
32
‘X’
Type B30 - 30mm border : X = 15
Screwdriver operationto locate fastenertongue behind subframe
Concealed fastenerfactory fitted togrille border
L+6/H+6 Subframe fixedto surround(No 8 screw by others)
1 5
100
150
200
250
300
350
400
450
500
600
Nominalheight(mm)
H
PivotLine
150
200
250
300
400
350
450
500
600
700
800
900
1000
1200
Nominalwidth(mm)
L
60
40
20
10
5
Pressuredrop (total)
(Pa)
8
65
4
3
2
Effective JetVelocity
(m/s)
10
8
6
5
4
3
1100
1000900
800
700
600
500
400
350
300
250
200
175
150
125
10090
70
50
40
30
20
Air Volume(l/s)
Throw(m)
Pivotline
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Eggcrate Grille Type AEReturn air grille with fixed square pattern core. Front border32mm with visible screw fixing. Available on request with
concealed fixing.
The grille is available with rear mounted opposed blade volumecontrol damper adjustable from the front face.
Size AvailableMinimum Size 150 x 100. Maximum Size 1200 x 600. Standardincrements 50mm.
For full details see publication 1/1.3/B/...
S E C T I
O N
2
E x t r a c t G r i l l e s
Order Code
Type
AE
Rear Assemblies
A = Grille face only
AG = Rear opposed blade damper
Subframe
0 = without subframe
B30 = 75mm subframe bracket
Fixing Variant
0 = Without (screw fix)
S11 = With (secret fix)
X = Without flange drilling or secret fix
L x H (mm)Powder coat finish
AE - AG 200 x 200 B30 S11 P3 RAL 9010 20% Gloss / / / / / /
Screw Fixing Secret Fixing Detail Subframe
H / L
H + 4 5 / L + 4 5
H + 2 2 / L + 2 2
1 3 75
32
‘X’
Type B30 - 30mm border : X = 15
Screwdriver operationto locate fastenertongue behind subframe
Concealed fastenerfactory fitted togrille border
L+6/H+6 Subframe fixedto surround(No 8 screw by others)
1 5
Rear Assembly
...-AG
1 0 4 7
0
06
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Performance Data
200
300
400
500
600
700
800
900
1000
1100
1200
Nominalwidth(mm)
L
1000
500
400
300
200
100
50
25
Air Volume(l/s)
Effective JetVelocity
(m/s)
Pressuredrop (total)
(Pa)
15
10
5
2
Pivotline
765
4
3
2
1
0.5
Pivotline
Nominalheight(mm)
H100
150
200
250
300
350
400
450
500
600
S E C T
I O N
2
E x t r a c t G r i l l e s
By limiting effective jet velocity to 7 m/s all grille sizes shown meet NC35 assuming 8 dB room attenuation (nodamper or damper fully open).
07
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Note: 1) 75mm CFG depth option available
DetailA
X standard 25mm. Can be 25-50mm in 1mm steps
Shims tosuit heightrequired
(factory fitted)
X
90mm MaximumPedestal
599 +0.5/-1mm
1 2 5 m
m 1 )
Power Inlet Plug (C14)
6mm13mm Nominal Pitch
6
8 . 5
1 4 0 m m A
p p r o x
S E C T I
O N
3
F l o o r G r i l l e s
Order Code
Type CFG Type AFG
Detail A
08
Computer Room Floor Grille Type CFG/AFGFloor grille types CFG and AFG are specifically developed for mounting in RaisedAccess Floors in such areas as Computer Rooms, where load and damage
resistance are of the utmost importance.Having a heavy duty construction, they can replace 600mm square floor tiles.Grille border depth can be specified to suit the type of floor system used. A rangeof surface finishes is available.
The type CFG is a fan assisted computer room floor grille thateliminates hotspots and reduces risk of equipment failure byproviding up to 5kW of cooling per cabinet.
The type AFG is a static grille assembly which can handle supplyair or alternatively extract air and be fitted with rear opposedblade damper assembly for air volume flow control.
For full details see publication PI/1/9/B/...
Frame Depth (mm)
between face of grille
and face of pedestal
25 standard
Optionally 26 - 50 in
1mm steps
*Does not have the structural performance of 125mm unit
Type
CFG
AFG
/ / / / 600 x 600 35 P2
P2 = Polyester powder coat silver grey
RAL 9006 25% Gloss (Standard)
P4 = Polyester powder coat black
RAL 9006 20% Gloss
N1 = Polyester powder coat with nylon
reinforcing black RAL 9005
Unit Depth (mm)
125 = Standard
*75 = Optional
0 = Not used AFG
Size (mm)
Rear Assembles
F1 = Fan Pack (230V Standard) CFG only
A = Face only, AFG only
AG = Rear opposed blade damper, AFG only
CFG - F1 125
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S E C T
I O N
3
F l o or
G r i l l e s
09
CFG Fan Specification
Watts/Motor 26Total Watts 104
Amps/Motor 0.12Total Amps 0.48Motor 230V AC 50Hz
Selection Guide
The floor grille should be located at the front of theI.T./Comms cabinet experiencing hot spot conditions thecabinet should incorporate a perforated door. The floorvoid static pressure must be considered in the selectionprocess (see Potential cooling below). Sufficient void air(cooled by others) must be available to be drawn by thegrille at the specific point of need.
CFG Acoustic Data
Sound power level for one CFG 76dB(A)In an area with several units the noise level will increase
due to multiple sources. To allow for this and roomattenuation an assessment should be made by anacoustic engineer to ensure required room noise levelsare achieved.
Structural performance
Test Result
Stability of deflection
(centre of grille):
4.5 kN static load through 25mm
square indentor
Impact load test:
40 kg Sand Bag from 1m
height
Dynamic rolling load test:
4.5 kN load 50 passes of wheel
3 kN load 50 passes of wheel
3 kN load 50 passes of wheel
Safety load test
(centre of grille):
13.5 kN load through 25mm square
indentor
Deflection 23 hours after load
applied - 3mm
Deflection 24 hours after load
applied - 3mm
0.09mm permanent
deformation
0.01mm permanent indentation
Did not collapse
Did not collapse
0.40mm Vertical permanent
deformation (max)
0.20mm Horizontal permanent
deformation (max)
Did not collapse
6.00
5.00
4.00
3.00
2.00
1.00
0.00
k W C o o l i n g C a p a c i t y
CFG
5.11kW
0.81kW
AFG Grille
(no fans)
Potential cooling
-15 -10 -5 0 5 10 15
A i r V o l u m e ( l / s )
Floor Void Static Pressure (Pa)
0
600
100
200
300
500
400
CFG: 4 fans AFG: no fans
Note: Based on 10k rise across I.T. equipment with1 Pascal floor void static pressure
The 125mm deep unit will provide the following strengthagainst the performance specification:
PSA MOB PF2 PS/SPU March 1992, with the following results:
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Floor Grille Type FBFloor Swirl Diffusers available in either aluminium or plasticconstruction in a range of finishes/colours.
Diffusers may be installed into a floor with either a pressurised void(no plenum box) or duct connection to optional side entry plenum box.
Air discharge pattern may be adjusted to provide either horizontal orvertical by adjustment of optional control element (not type VF).
For full details see publication 1/8/EN/...
S E C T I
O N
3
F l o o r G r i l l e s
Order Code - Aluminium Construction
Type
Surface of diffuser core and trim ring:
Die cast and deburred 1
Die cast, deburred, tumble fettled 2
Die cast, deburred, tumble fettled 3
and polished black stove enamel paint,
face skimmed natural
Die cast, deburred, tumble fettled 4
face skimmed
Adjustable swirl element2) vertical V
directional control horizontal H
vertical - fixed VF 3)K = Trim ring1)
FBA - 1 - V - K - SM - A 150 /
10
SM = Dirt trap including adjustable volume control at rear
SV = Dirt trap including adjustable volume control at face
A = Plenum box
Size (mm)150200
Order Code - Plastic Construction
Type
Surface of diffuser, core and trim ring:
Ash grey - similar to RAL 7037 1
Black - similar to RAL 9005 2
Adjustable swirl element2) vertical V
directional control horizontal Hvertical - fixed VF 3)
1) For orders without trim ring a spacing ring is provided for technical performance reasons and to ensure correct height of grille core.2) For orders without adjustable swirl element the direction of air discharge is vertical.3) Only available for size 200.
1) For orders without trim ring a spacing ring is provided for technical performance reasons and to ensure correct height of grille core.2)
For orders without adjustable swirl element the direction of air discharge is vertical.3) Only available for size 200.
K = Trim ring1)
FBK - 1 - V - K - SM - A 150 /
SM = Dirt trap including adjustable volume control at rearSV = Dirt trap including adjustable volume control at face
A = Plenum box
Size (mm)150200
V00 /
0 = Standard polyamide(PA 6)
V00 = Polyamide(PA 6-V0)
0 /
1
2
3
4
6
5
6 Plenum Box
5 Dirt Trap
4 Clamping Ring
3 Trim Ring
2 Swirl element for adjustment of air discharge direction
1 Diffuser Core
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Horizontal Discharge Vertical
SizeThrow (m) Discharge
0.3 m 0.9 m 1.2 m 1.5 m
150Air Volume (l/s) min - max 10 - 16 15 - 25 18 - 30 - 10 - 30
Press Drop (Pa) min - max 8 - 20 18 - 50 28 - 70 - 5 - 35
200Air Volume (l/s) min - max 16 - 27 21 - 35 25 - 41 30 - 50 10 - 50
Press Drop (Pa) min - max 8 - 20 13 - 35 18 - 50 28 - 70 5 - 50
ØR1
c 1
S E C T
I O N
3
F l o or
G r i l l e s
11
Performance Data
Max noise level NC38 assuming 4dB room attenuation. Data for FBA diffusers and dirt trap, damper fully open noplenum box. Horizontal discharge is Throw distance to terminal velocity of 0.15m/s (min vol) and 0.25m/s (maxvol). A 600mm clear zone (from centre of diffuser) is recommmended with vertical discharge.
Size Ø D G E H1 H2 K1 K2 ØR1 ØR2 ØR3 ØR4 ØR5 c1 c2
150 98 50 160 125 71.5 200 198.5 149.5 138 137 150.1 150.3 21 22
200 123 48 200 150 84 250 248.8 199.5 188 187 200.1 200.3 21 22
Dimensions
Diffuser core FBA/FBK
Adjustable swirl element to change direction of discharge
Vertical - fixed (VF)Vertical/Horizontal (V,H)
Clamping ringFor installation in floor panels - min. 25mm thickness
Clamping ring
For installation in floor panels - max. 55mm thickness
Dirt trap SM/SV
Trim ring K
Plenum box A
ØR2 2
ØR3
1 , 5
4 7
ØR4-9,5
ØR424
c 2
7 0
4 , 5
H 1
18 GK1/K2
H 2
Ø D
E
ØR2 2
ØR521
2
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Linear Grille Types AH - WAPSupply or return air grille with fixed horizontal profiled blades.Type AH - 5.5mm blades on 12.5mm pitch. WAP - 3mm blades on
12.5mm pitch. Front border 30mm wide, blades with either 0° or15° deflection, Type AH-0 and AH-15 respectively, with visiblescrew fixing (border counter punched). Available on request withconcealed fixing. Standard finish: Powder coated RAL9010 20%gloss.
Type AFSupply or return air grilles for lay in floor mounting with fixedhorizontal profiled blades, blades with either 0° or 15°deflection. Type AF-0 and AF-15 respectively. The grille core isremovable. The grille can be fitted into masonry. Standard finish:Powder coated RAL 9006 25% gloss.
Sizes AvailableMinimum Size 150 x 100. Maximum Size 1800 x 600. Standardincrements 50mm.
For full details see publication 1/1.1/B/...
S E C T I
O N
4
L i n e a r G
r i l l e s
Order Code
Type
AF
AH
WAP
AHR (20mm border)
WAPR (20mm border)
Blade deflection
15°
0°
Subframe
0 = No subframe
B30= 75mm subframe bracket
(30mm borders) for finite grille
B20= as above but for 20mm
border grille
L30 = 1800mm subframe (30mm
borders) for linear grille**
L20 = as above but for 20mm border grille
Note: ** = Also for use when S11 fix plenum box supplied
Rear Assemblies
A = Grille Face only
AG = Rear opposed
blade damper
D = Rear adjustable
blades
DG = Rear adjustable
blades and damper
Fixing
0 = Without (screwfix)
S11 = With (secret fix)
X = Without flange
drilling
L x H (mm)Powder coat finish
AH - 15 - AG 1000 x 150 B30 S11 P3 20% Gloss / / / / / /
...-AGOpposed blade actionvolume control damper,adjustable from thefront face.
...-DA set of individuallyadjustable vertical airpattern control blades.
...-DGVolume control dampersas ...-AG plus a set of individually adjustablevertical air patterncontrol blades.
Type AH - WAP Type AF
1 0 7 7
5
H / L
H +
4
1 ( 2 1 ) / L +
4 1 ( 2 1 )
1 2 . 5
AH-0WAP-0
AH-15WAP-15
H/L
12.5
H+30/L+30
AF-0
6 4 3
2
1 0 7 7
5
Rear Assembly
12
RAL 9010
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Performance DataLinear grille (with aspect ratio >12 to 1) with ceiling effect (grille installed within 300mm of ceiling). Throw is thedistance from sidewall grille to an average velocity of 0.35 m/s.
By limiting effective jet velocity to 6 m/s all grille sizesshown up to 3m long meet NC35 assuming 8 dB roomattenuation and fully open damper.
LThrow
(m)
Effective JetVelocity
(m/s)
Pressuredrop (total)
(Pa)
Nominalheight(mm)
HType
AH/AF
WAP
AH/AF
WAP
AH/AF
WAP
WAPAH/AF
AH/AF
WAP
AH/AF
WAP
75
75
100
100
150
150
200250
200
250
300
300
60
40
30
20
15
10
7
Pivot line
7
6
5
4
3
2
1.5
400
350
300
250
200175
150
125
100
80
70
60
50
40
30
Air Volume(l/s.m)
20
10
15
5
2
1
S E C T
I O N
4
L i n e a
r G r i l l e s
Subframe Secret Fixing Detail
75
32
‘X’
Type B30 - 30mm border : X = 15Type B20 - 20mm border : X = 5
Screwdriver operationto locate fastenertongue behind subframe
Concealed fastenerfactory fitted togrille border
L+6/H+6 Subframe fixedto surround(No 8 screw by others)
1 5
13
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Order Code
Type
AGS
AGS-T (Matching frame - T)
0 = without subframe
0 = Screwfix
X = Without flange drilling
L x H (mm) Powder coat finish
AGS - T 250 x 250 0 0 P3 RAL 9010 20% Gloss / / / / / /
Type
LVV 40
Note: For use with LCG Grilles
L x H (mm)
Order Code - Fire Block
LVV 40 150 x 150 /
Type
LCG
L x H (mm) Powder coat finish
Order Code - Pressed Steel Grille
LCG 150 x 150 0 0 P3 RAL 9010 20% Gloss / / / / / /
Transfer Grille Type AGSNon vision grille for supply or return air with fixed inverted veeblades with visible screw fixing (border counter-punched). The
non-vision grille is also available with a matching rear frame -Type AGS-T
Transfer Grille Type LCG / LVV40Pressed steel grilles and integral intumescent fireblock (1 hourrated), for use in fire rated doors and partitions.
Size AvailableMinimum Size 150 x 100. Maximum Size 1200 x 600. Standardincrements 50mm.
For full details see publication 1/1.1/B/...
T r a n s f e r G r i l l e s
S E C T I
O N
5
14
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T r a n s f e r G r i l l e s
S E C T
I O N
5
Performance Data
Type LCG/LVV40Type AGS-T Type AGS
H / L
H 1
/ L 1 H
/ L
H 1 + 1 0 / L 1 + 1 0
min25
max44
Intumescentmastic by others
LVV40 intumescentfireblock
LCG cover grille
Neck Pressure Drop (Pa) 3 7 12.5 19.5 28 38Size Jet Velocity 1 1.5 2 2.5 3 3.5
150 x 150 Volume (l/s) 7 10 14 17 20 24
200 x 150 Volume (l/s) 9 14 19 24 28 33
200 x 200 Volume (l/s) 15 23 30 38 45 53
300 x 200 Volume (l/s) 24 35 47 59 71 82
300 x 300 Volume (l/s) 38 57 76 96 115 134
400 x 300 Volume (l/s) 52 78 104 130 156 182
450 x 300 Volume (l/s) 59 88 117 147 176 205
450 x 450 Volume (l/s) 90 135 181 226 271 316
600 x 400 Volume (l/s) 110 164 219 274 329 384
500 x 500 Volume (l/s) 116 174 232 290 348 406
600 x 600 Volume (l/s) 171 256 341 426 512 597
800 x 600 Volume (l/s) 229 344 459 573 688 803
1000 x 600 Volume (l/s) 288 432 576 720 864 1008
1200 x 600 Volume (l/s) 347 520 694 867 1041 1214
Neck NC20 NC25 NC30 NC35Size Volume l/s T∆Pa Volume (l/s) T∆Pa Volume (l/s) T∆Pa Volume (l/s) T∆Pa
150 x 150 45 15 55 23 65 30 80 45
200 x 150 55 15 70 21 80 30 100 40
200 x 200 74 15 86 19 105 27 120 35300 x 200 100 12 120 18 145 24 170 32
300 x 300 140 11 170 16 200 20 240 29
400 x 300 175 10 210 15 250 20 300 26
450 x 300 200 10 235 14 285 20 340 25
450 x 450 285 9 325 13 380 17 470 24
600 x 400 310 9 380 12 450 16 550 22
500 x 500 325 8 390 12 485 16 560 21
600 x 600 435 8 530 11 640 15 750 20
By limiting effective jet velocity to 3 m/s all grille sizes shown meet NC35 assuming 8 dB roomattenuation.
Data is for composite unit of 2No. grilles and integral fireblock. NC levels based on 8dB roomattenuation.
AGS
LCG / LVV40
15
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High Capacity Linear Slot Diffuser Type VSD50The Type VSD50 slot diffuser is available with 1-4 slots.They are characterised by high induction, which results in a rapid decay of supply
air velocity and temperature differential.
The direction of air discharge can be adapted on site (by others) to the requiredroom conditions.
Size Available1 to 4 slot lengths available in increments of 150mm.
For full details see publication 2/2.5/B/1...
S l o t D i f f u s e r s
S E C T I
O N
6
16
Order Code - Diffuser
Order Code - Plenum
Note: For details of Plenum Boxes see leaflet 2/2.5/B/..
/ / / / / /
Blade SettingHH1 = All blades in one directionHH2 = Alternating blades every 300mmHA2 = 45o Alternating blades every 150mmHH3 = Alternating blade 33%/66%.
150mm then 300mm
Finish/colourP3 = powder coated to RAL 9010 20%1
P2 = powder coated to RAL 9006 25%P4 = powder coated to RAL 9005 20%P6 = other colours to RAL
1) standard finish
TypeVSD50
StyleBlackWhiteBF WF BL WLBN WNBE WE
F = FiniteL = LinearN = Non activeE = Mitre*
FlangeNF = Not flangedFL = FlangedPL = Plank ceiling1
TZ = Techzone2
1) 4 slot only2) VSD35 only
End CapP02 = PlateA02 = AngleL02 = Offset anglePL02 = Plank Fixings
0 = WithoutFK = Fixing kit
/ /
Length450mm to 1800mm150mm increments
No. of Slots1 to 4
TypeVSD50
Plenum Type0 = Standard plenumEH - Extended heightRA - Light baffle return air
No. of Slots1 to 4
Spigot Damper0 = Standard spigotM = Spigot damperMC = Cord operatedspigot damper
Extended neckY = dimension mm0 = without extended neck
Spigot dia
No. of Spigots1 to 4
VSD50-V3-BF-4-FL-P02 0 P3 20%RAL 9010
AKV-VSD50-V3-0-4-D12-M 0
HH2
Length L1 mm length of diffuser orangle* of mitre in degrees*Only in 90o or 135o with 300mminside leg
LiningNoneD12 = 12mm
1200
1200 x 1 x 198 x 0
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S l o t D
i f f u s e r s
S E C T
I O N
6
Performance Data
Perimeter throw pattern for VSD diffusers to a maximum terminal velocity of 0.75 m/s with average room velocitiesof 0.25 m/s. Blade configuration as detailed below to be set up on site, by others.
Diffuser recommended active length between 75% and 80% of facade length.
Maximum air change rates up to 25 per hour using special perimeter blade configuration as detailed below.
Max NC35 assuming 8dB room attenuation, 1200mm long plenum, recommended max spigot velocity 3.5 m/s.
VSD50
Number of Slots
Throw (m)
3.0 m 4.5 m 6.0 m
1Air Volume (l/s/m) min - max 20 - 55 20 - 70 20 - 80
Press Drop (Pa) max 22 36 47
2Air Volume (l/s/m) min - max 40 - 80 40 - 100 40 - 115
Press Drop (Pa) max 14 22 29
3Air Volume (l/s/m) min - max 60 - 100 60 - 120 60 - 145
Press Drop (Pa) max 10 15 20
4Air Volume (l/s/m) min - max 80 - 115 80 - 140 80 - 165
Press Drop (Pa) max 8 13 18
17
Slots‘P’
FL NF PL
1 79.5 59.5 -
2 121.5 101.5 -
3 163.5 143.5 -
4 205.5 185.5 299
Slot Width Dimensions VSD50
Example shown: 4 slot diffuser Façade
150
300
200 to1000mm
Throw (m)
2.7m PartitionWall
Façade
Perimeter Throw Pattern
Sections NF FL
PL
Tolerance Length ‘L1’ +/- 1 Width ‘P’ +/- 1
End CapsType P Type A Type L Type PL
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S E C T I
O N
6
S l o t D i f f u s e r s
Linear Slot Diffuser Type VSD35The type VSD35 slot diffuser is available with 1-4 slots.They are characterised by high induction, which results in a rapid decay of supply
air velocity and temperature differential.
The direction of air discharge can be adapted on site (by others) to the requiredroom conditions.
Size Available1 to 4 slots lengths available in increments of 150mm.
For full details see publication 2/2.5/B/1...
Order Code - Diffuser
Order Code - Plenum
Note: For details of Plenum Boxes see leaflet 2/2.5/B/..
18
/ / / / / /
Blade SettingHH1 = All blades in one directionHH2 = Alternating blades every 300mmHA2 = 45o Alternating blades every 150mmHH3 = Alternating blade 33%/66%.
150mm then 300mm
Finish/colourP3 = powder coated to RAL 9010 20%1
P2 = powder coated to RAL 9006 25%P4 = powder coated to RAL 9005 20%P6 = other colours to RAL
1) standard finish
TypeVSD35
StyleBlackWhiteBF WF
BL WLBN WNBE WE
F = FiniteL = LinearN = Non activeE = Mitre*
FlangeNF = Not flangedFL = FlangedPL = Plank ceiling1
TZ = Techzone2
1) 4 slot only2) VSD35 only
End CapP02 = PlateA02 = Angle
L02 = Offset anglePL02 = Plank Fixings
0 = WithoutFK = Fixing kit
/ /
Length450mm to 1800mm150mm increments
No. of Slots
1 to 4
Spigot Damper0 = Standard spigotM = Spigot damperMC = Cord operatedspigot damper
Extended neckY = dimension mm0 = without extended neck
Spigot dia
No. of Spigots1 to 4
VSD35-V3-BF-4-FL-P02 0 P3 20%RAL 9010
01200 x 1 x 198 x 0
HH2
Length L1 mm length of diffuser orangle* of mitre in degrees*Only in 90o or 135o with 300mminside leg
LiningNone
D12 = 12mm
1200
TypeVSD35
Plenum Type0 = Standard plenumEH - Extended heightRA - Light baffle return air
No. of Slots1 to 4
AKV-VSD35-V3-0-4-D12-M
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Slots‘P’
FL NF PL TZ
1 64 44 - -
2 91 71 - -
3 118 98 - 133
4 144.5 124.5 299 -
S l o t D
i f f u s e r s
S E C T
I O N
6
Performance Data
Slot Width Dimensions VSD35
Perimeter throw pattern for VSD diffusers to a maximum terminal velocity of 0.75 m/s with average room velocitiesof 0.25 m/s. Blade configuration as detailed to be set up on site, by others.
Diffuser recommended active length between 75% and 80% of facade length.
Maximum air change rates up to 25 per hour using special perimeter blade configuration as detailed.
Max NC35 assuming 8dB room attenuation, 1200mm long plenum, recommended max spigot velocity 3.5 m/s.
VSD35
Number of Slots
Throw (m)
3.0 m 4.5 m 6.0 m
1Air vol. (l/s/m) min - max 15 - 40 15 - 50 15 - 50
Press drop (Pa) max 31 44 44
2Air vol. (l/s/m) min - max 30 - 60 30 - 70 30 - 75
Press drop (Pa) max 15 23 26
3Air vol. (l/s/m) min - max 45 - 70 45 - 85 45 - 95
Press drop (Pa) max 10 16 20
4Air vol. (l/s/m) min - max 60 - 80 60 - 100 60 - 110
Press drop (Pa) max 9 14 17
19
Example shown: 4 slot diffuser Façade
150
300
200 to1000mm
Throw (m)
2.7m PartitionWall
Façade
Perimeter Throw Pattern
Sections NF FL TZ
PL
Tolerance Length ‘L1’ +/- 1 Width ‘P’ +/- 1End CapsType P Type A Type L Type PL
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S l o t D i f f u s e r s
S E C T I
O N
6 High Capacity Linear Slot Diffuser Type ALS25Supply slot diffuser with integral baffle plate and air deflection blades. Inthe supply mode the discharge can either be set to horizontal or vertical
direction by adjustment of the air deflection blades. Available as extractdiffuser and also blanked dummy variant.
For full details see publication 2/2.2/B/...
Order Code - Plenum
Plenum
Diffuser Type
ALS25
Number of Slots
1 - 4
Fix Type
CF = Clip fix
BF = Bridge fix
BX = Bridge fix for extended height plenum
M = Spigot Damper
or no entry
D = Lining or no entry
Spigot
(mm)Number of spigots
1 - 4
1) Overall Height (mm)(including diffuser plusany neck extension Y)
1) Minimum overall height including diffuser with CF fixing = spigot diameter + 98 mm + YMinimum overall height including diffuser with BF fixing = spigot diameter + 122 mm + Y
Note: For details of Plenum Boxes see page 24.
Length
(mm)
AKV - ALS25 - 3 - BF - D - M 1200 x 248 x 2 x 370 0 0 / / /
Order Code - Diffuser
Type
ALS25
Style
S = Return (without blades)
NA = Non-Active (without blades)
E = Mitred corner
(non-active without blades
300mm inside legs)
T2 = (2 supply blades withspreader plate)
Number of slots
1 to 4
Not Used
Fixings
SB = Support Brackets
CF = Clip Fixings
BF = Bridge Fixings
BX = Bridge Fixings for extended height plenum
0 = Without
Length of diffuser in mm or Angle of mitre in degrees
End Caps / End Plates
A1 = One end cap fitted
A2 = End cap both ends fitted
P1 = One end plate fitted
P2 = End plate both ends fitted
0 = None
Powder coat finish
ALS25 - T2 - 3 - A2 1200 SB 0 P3 RAL 9010 20% Gloss / / / / / /
20
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S l o t D
i f f u s e r s
S E C T
I O N
6
ALS25-T2-1 ALS25-T2-2
DIM ‘A’ mm
SLOT
2528
DIM ‘P’ mm
28
DIM ‘A’ mm
2825
SLOTSLOT
19.52528
DIM ‘P’ mm
AIR DEFLECTION BLADESADJUSTABLE FROM FACE
AIR BAFFLE PLATEIN EACH SLOT
7 6
End Angle End Plate Dimensions
Number of Slots Neck A Face P
1 46.0 81.0
2 90.5 125.5
3 135.0 170.0
4 179.5 214.5
Performance Data
Air volume shown is based on diffuser used in a 1-way blow configuration to a maximum terminal velocity of 0.75m/s with average room velocities of 0.25 m/s.
Diffuser recommended active length between 75% and 80% of facade length.
Maximum air change rates up to 20 per hour for 1-way discharge pattern, 23 per hour for 2-way discharge pattern.
Max NC35 assuming 8dB room attenuation, 1200mm long plenum, recommended max spigot velocity 3.5 m/s.
ALS25
Number of Slots
Throw (m)
3.0 m 4.5 m 6.0 m
1Air vol. (l/s/m) min - max 20 - 55 20 - 70 20 - 80
Press drop (Pa) max 22 36 47
2Air vol. (l/s/m) min - max 40 - 80 40 - 100 40 - 115
Press drop (Pa) max 14 22 29
3Air vol. (l/s/m) min - max 60 - 100 60 - 120 60 - 145
Press drop (Pa) max 10 15 20
4Air vol. (l/s/m) min - max 80 - 115 80 - 140 80 - 165
Press drop (Pa) max 8 13 18
7 5
1.5
28
7 5
1.5
21
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Order Code - Diffuser
Type
ALS20
Style
S = Return (without blades)
NA = Non-Active (without blades)
E = Mitred corner
(non-active without blades
300mm inside legs)
T2 = (2 supply blades with spreader plate)
Number of slots
1 to 6
Not Used
Fixings
SB = Support Brackets
CF = Clip Fixings
BF = Bridge Fixings
BX = Bridge Fixings for extended height plenum
0 = Without
Length of diffuser in mm or Angle of mitre in
degrees
End Caps / End Plates
A1 = One end cap fitted
A2 = End cap both ends fitted
P1 = One end plate fitted
P2 = End plate both ends fitted
0 = None
Powder coat finish
1200 SB 0 P3 RAL 9010 20% Gloss / / / / / /
S l o t D i f f u s e r s
S E C T I
O N
6 Type ALS20Supply slot diffuser with integral air straightener, hit and miss damper andair deflection blades. In the supply mode the discharge can either be set to
horizontal or vertical direction by adjustment of the air deflection blades.Available as extract diffuser and also blanked dummy variant.
For full details see publication 2/2.1/B/...
Order Code - Plenum
Variable
Plenum
Diffuser Type
ALS20
Number of Slots
1 - 6
Fixing
CF = Clip fix
BF = Bridge fix
BX = Bridge fix for extended height plenum
M = Spigot Damper
or no entry
D = Lining or no entry
Spigot
(mm)Number of spigots
1 - 4
1) Overall Height (mm)(including diffuser plusany neck extension Y)
1) Minimum overall height including diffuser with CF fixing = spigot diameter + 98 mm + YMinimum overall height including diffuser with BF fixing = spigot diameter + 122 mm + Y
Note: For details of Plenum Boxes see page 24.
Length
(mm)
AKV - ALS20 - 3 - BF - D - M 1200 x 248 x 2 x 430 0 0 / / /
22
ALS20 - T2 - 3 - A2
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S l o t D
i f f u s e r s
ALS20-DS-1 ALS20-DS-2
DIM ‘A’ mm
SLOT
2028
DIM ‘P’ mm
28
DIM ‘A’ mm
2820
SLOTSLOT
19.52028
DIM ‘P’ mm
ADJUSTABLE FROM FACEAIR DEFLECTION BLADES
AIR BAFFLE/HIT & MISSSECTION IN EACH SLOT
7 6
End Angle End Plate
7 5
1.5
28
7 5
1.5
Performance Data
Air volume shown is based on diffuser used in a 1-way blow configuration to a maximum terminal velocity of 0.75m/s with average room velocities of 0.25 m/s.
Diffuser recommended active length between 75% and 80% of facade length.
Maximum air change rates up to 20 per hour for 1-way discharge pattern, 23 per hour for 2-way discharge pattern.
Max NC35 assuming 8dB room attenuation, 1200mm long plenum, recommended max spigot velocity 3.5 m/s.
ALS20
Number of Slots
Throw (m)
3.0 m 4.5 m 6.0 m
1Air vol. (l/s/m) min - max 15 - 45 15 - 55 15 - 55
Press drop (Pa) max 39 55 55
2Air vol. (l/s/m) min - max 30 - 65 30 - 80 30 - 85
Press drop (Pa) max 19 29 33
3Air vol. (l/s/m) min - max 45 - 80 45 - 95 45 - 105
Press drop (Pa) max 13 18 22
4Air vol. (l/s/m) min - max 50 - 90 50 - 110 50 - 120
Press drop (Pa) max 9 14 16
5Air vol. (l/s/m) min - max 70 - 100 70 - 125 70 - 135
Press drop (Pa) max 7 11 13
6Air vol. (l/s/m) min - max 75 - 110 75 - 135 75 - 150
Press drop (Pa) max 6 9 11
Dimensions
Number of Slots Neck A Face P
1 41.0 76.0
2 80.5 115.5
3 120.0 155.0
4 159.5 194.5
5 199.0 234.0
6 238.5 273.5
S E C T
I O N
6
23
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S l o t D i f f u s e r s
S E C T I
O N
6 Slot Diffuser Plenum Type AKVAll plenums are supplied loose for site assembly to diffuser, Type CF clipped to diffuser prior to installation, Types BF & BX plenum pre-
installed for 2nd fix diffuser.
Plenum from pre-galvanised, mild steel natural finish.Damper Type M from pre-galvanised perforated sheet.Assembly supported by others (4 no holes provided at top edge of plenum).
Plenum internally lined with 15mm black faced Class O foam if required.
Order Code
Variable
Plenum
Diffuser Type
ALS20
ALS25
Number of slots
Fixing
CF = Clip fix
BF = Bridge fix
BX = Bridge fix for extended height plenum
Overall Height (mm)Length
(mm)
AKV - ALS20 - 3 - BF - D - M 1200 x 248 x 2 x 430 0 0
Spigot
(mm)
Number of spigots
M = Spigot Damper or no entry
D = Lining or no entry
/ / /
Spigot Lengths
Spigot Length Dimension XSpigot Damper Order Suffix
Up to 178Ø 198 to 398Ø
YES - M - 75mm 100mm
NO - 40mm 40mm
‘L’ Max = 2100‘L’ Min = D+100
‘L’ Max = 2100‘L’ Min = 2D+100
Plenum Lengths & Spigot Positions
‘L’
L/2L/4 L/4
24
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S l o t D
i f f u s e r s
S E C T
I O N
6
Slot Diffuser Plenum Details
Type BF Type CF Type BX or CF
Extended Neck Plenum(Type ‘BX’ shown)
Extension ‘Y’
Maximum = 1150mm ‘CF’ Types1100mm ‘BX’ Types
Minimum = 25mm All Types
‘Bb’ Ø ‘ D ’
Ø ‘ D ’
( D + 2 2 )
‘ E b ’ O / A H E I G H T
‘W’ ‘X’
TYPICAL SLOT(VSD TYPE SHOWN)
‘Bc’
Ø ‘ D ’
Ø ‘ D ’
( D + 2 2 )
‘ E c ’ O / A
H E I G H T
‘W’ ‘X’
‘Bb’ Ø ‘ D ’
Ø ‘ D ’
‘W’ ‘X’
EXTENSION
‘Y’(*)
( D + 2 2 )
‘ E c + Y ) O R ( E b + Y ) O / A H E I G H T
Dimensions
Type Number of slots W Bc Bb Ec Eb D Max
1 138 43 61 (D+98) (D+122) 1982 176 82.5 100.5 (D+98) (D+122) 248
AKV-ALS203 214 122 140 (D+98) (D+122) 298
4 254 161.5 179.5 (D+98) (D+122) 353
5 310 201 219 (D+98) (D+122) 448
6 380 240.5 258.5 (D+98) (D+122) 498
1 138 48 66 (D+98) (D+122) 198
2 214 92.5 110.5 (D+98) (D+122) 298AKV-ALS253 254 137 155 (D+98) (D+122) 353
4 310 181.5 199.5 (D+98) (D+122) 448
25
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F i x e d B l a d e L i n e a r D i f f u s e r s
S E C T I
O N
7 Linear Diffuser Type ADMOpposed blade damper can be provided and where diffuser length exceeds1200mm, this should be mounted in the plenum box. Plenum box
requirements should be forwarded to Trox for assessment/design proposals.
Size AvailableHeights 150 to 450 in increments of 50mm. Length 300mm minimum
For full details see publication 2/2.4/B/...
Order Code
Screw Fixing Secret Fixing Detail
Type
ADM1
ADM2
Style
A = Face only
AG = Opposed blade damper1)
Note 1) Where supplied with plenum AG will be mounted in the plenum only.
L x H (mm)
Subframe
0 = without
A00= subframe
Fixing Variant
0 = without (screwfix)
S11 = with (secret fix)
N2 = with crossbar fixing
SB = with support bracket
(mitred corner only)
Powder coat finish
ADM1 - A 1000 x 200 0 0 P3 RAL 9010 20% Gloss / / / / / /
Type OStandard Supply
Type N2Optional Extra,Cross Bar fixing
Type S11Optional Extrasubframe withconcealed fasteners.
Border drilled forfixing to duct
3 5
Opening sizeH + 6 L + 6
Opening size H x LIncludedin supply
Duct
7 0
T y p e / A
1 4 0
T y p e / A G
Type ADM1-A Type ADM2-A
-1A Opening size ‘H’ x ‘L’ Type-0 fix
7 0
A G s e c t i o n
A s e c t i o n
5
0
overall size H + 38 / L + 38
H-22 / L-22
125Blade Pitch
3030
7
A Opening size ‘H’ x ‘L’ Type-0 fix
7 0
A G s e c t i o n
A s e c t i o n
5
0
overall size H + 38 / L + 38
H-22 / L-22
125Blade Pitch
3030
7
26
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Supply Aerodynamic Data ADM-1
Performance Data
F i x e d
B l a d e L i n e a r D i f f u s e r s
S E C T
I O N
7
The above selections meet noise levels up to and including NC35 assuming 8dB room attenuation. ADM lineardiffuser with ceiling effect (horizontal throw). Throw is the distance from diffuser to a velocity of 0.5 m/s.
H Pressure Drop (Pa)in mm
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L o u v r e F a c e d D i f f u s e r s
S E C T I
O N
8 Type ADT Square louvred face, removable core, ceiling diffusers type ADT giving horizontal airdischarge, are suitable for use in rooms with ceiling heights between 2.60 and 4.00m.
The recommended supply air temperature differential is ±10K. The ADT diffuser can beused for supply or extract air applications.
ADT Plenum BoxManufactured from pre-galvanised mild steel. Supplied loose forsite fixing with either side or top entry spigots, with or withoutspigot dampers.
Plenums are also available internally lined if required and must besupported by the four holes provided on the top edge.
For full details see publication PI/2/10.3/B/...
28
Order Code - Diffuser
Order Code - Plenum Box
Type ADTF
ADTB
ADTA
ADTT
ADTM**
ADTS**
ADTH***
150 x 150225 x 225300 x 300375 x 375450 x 450525 x 525600 x 600*
Size
ADTF - 4 - AG 225 x 225 P3 RAL 9010 20% / / / /
VariablePlenum
Diffuser Type ADT
ZH Horizontal spigot (supply)
AH Horizontal spigot (extract)
ZV Vertical spigot (supply)
AV Vertical spigot (extract)
0 No damper
M Spigot damper 2)
MC Spigot damper cord operated 2)
AGF Opposed blade damper fitted to
rear of diffuser
AGP Opposed blade damper fitted to
body of plenum
0 No lining
D Lining
Spigot Dia (mm)
Plenum size (mm)
0 Unpainted
C Painted inside and out
E Painted outside
I Painted inside
Blanking Plate
BP-ADT / 450Diffuser size
Overall Height (mm)(including diffuser)1)
1) For ZH, AH minimum height spigot diameter + 102 mmMinimum height with AGF/AGP damper, spigot diameter + 154 mmMinimum height with reduced size plenum + 30 mm on either of above
For ZV, AV height fixed at 242mm or 272mm for full or reduced plenum respectively2) Not available for vertical spigots
DiffuserSize (mm)
450 x 248 x 300 x 380 0 / / / / RAL9005 / 20% /
Discharge 4
directions 3
2
2C
1
Rear Ancillaries
A Diffuser face only
AG Opposed blade damper fitted to rear of diffuser
P3 Powder coated white RAL9010 20% gloss (standard)
P4 Powder coated black RAL9005 20% gloss
P6 Powder coated colour RAL...
Gloss level
Gloss level
State colour
P4 Painted black RAL9005
20% gloss
P3 Painted white RAL9010
20% gloss
P6 Painted colour RAL...
Note:
*ADTF only
**only sizes 150 and 450
***only size 375
State colour
AKV - ADT - ZH - D - M P4E
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L o u v r e F a c e d D i f f u s e r s
S E C T
I O N
8
Diffuser OnlyType ADTF performance data (without damper, if fitted, 100% open)4-Way Discharge
29
Nomenclature:V̇ in l/s Volume flow per diffuserL in m Distance from the outlet where the maximum
time average air velocity is 0.5 m/svk in m/s Diffuser neck velocityΔpt in Pa Total pressure dropLpNC NC rating of room sound pressure level based
on an assumed 8dB room attenuation.
Note:The throw distance L should be between 75% and 100%of the distance to the nearest wall or 50% of the diffuserspacing dimension, based on a ceiling height of 2.7 -2.9m.
Nominal vk – m/s 1.0 1.5 2.0 2.5
L x H Δpt in Pa 6 13 24 37
V̇ in l/s L in m LpNC V̇ in l/s L in m LpNC V̇ in l/s L in m LpNC V̇ in l/s L in m LpNC
150x150 4-way 25 0.8 < 36 1.0 < 50 1.5 22 60 2.1 27
225x225 4-way 55 1.2 < 80 1.5 < 105 2.1 19 130 2.7 26
300x300 4-way 95 1.5 < 140 2.2 < 190 3.1 22 240 3.7 28
375x375 4-way 150 1.8 < 225 2.7 < 300 3.7 24 375 4.3 30
450x450 4-way 210 2.1 < 320 3.4 < 425 4.3 25 530 4.6 32
525x525 4-way 290 2.7 < 430 4.0 18 575 4.6 27 720 5.2 32
600x600 4-way 375 3.1 < 560 4.3 19 750 4.9 28 940 5.5 34
< indicates values less than 15
Type AKV (side entry spigot)
Performance is based on sizes and spigot sizes shown in table below.
Noise level correction for plenum (damper 100% open)
Total pressure drop correction for plenum (damper 100% open)
Nominal L x H 150 225 300 375 450 525 600
Spigot ØD 123 198 248 313 313 313 313/398
Height E min 277 352 402 467 467 467 467/552
Function Size 150x150 225x225 300x300 375x375 450x450 525x525 600x6001) 600x6002)
Supply F x2.2 x1.6 x1.6 x1.7 x2.4 x3.7 x5.0 x3.2
Extract F x2.2 x1.6 x1.7 x2.0 x2.6 x3.2 x4.3 x2.7
1) with 313 Ø spigot 2) with 398 Ø spigot
Function Size 150x150 225x225 300x300 375x375 450x450 525x525 600x6001) 600x6002)
Supply ΔLpNC +11 +7 +9 +9 +10 +13 +16 +11
Extract ΔLpNC +11 +6 +5 +7 +9 +10 +12 +8
1) with 313 Ø spigot 2) with 398 Ø spigot
General guidance on changing spigot diameter ØD with damper 100% open
Type AKV (Top entry spigot)The effect on performance is small providing spigot velocities do not exceed 3.5 to 4.0 m/s
Spigot velocity m/s 2.5 3 3.5 4.0
Approx LpNC 25 30 35 40
Diffuser with plenum box
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The type ADTF has a shaped flanged border for directlymounting to a closed flush ceiling (to maintain horizontal discharge)
To fit over ceiling opening size (L+100) (H+100)
Type ADTA to locate in ‘clip-in’ ceiling to match bevelled edgetile with ‘PIP’ height = 27.5mm (ie SAS system 150) or 25mm(ie Burgess type ‘A’)
Type ADTB to locate in ‘clip-in’ ceiling to match square edgedtile with ‘PIP’ height = 25mm (ie Burgess type ‘B’ or ‘D’)
The type ADTT has a flat flanged border to enable the diffuserface to be mounted on the back of an exposed ‘T’ bar ordirectly to a closed flush ceilingType *ADTH (size 375 only): 495 O/A to ‘lay-on’ 500 squareceiling ‘T’ supports
The types ADTM and ADTS each have a border designed to layinto an exposed Threadline support bar system
Type ADTM to ‘lay-on’ threadline ceiling ‘T’ support bar 15mmwide x 16mm deep (dimension Z)
Type ADTS to ‘lay-on’ threadline ceiling ‘T’ support bar 15mm
wide x 8mm deep (dimension Z)Standard nom (L x H) sizes 150/450
L o u v r e F a c e d D i f f u s e r s
S E C T I
O N
8
30
TypeNominal duct size L x H
150 225 300 375 450 525 600
ADTF • • • • • • •
ADTA/ADTB • • • • • •
ADTT • • • • • •
ADTH* •
ADTM/ADTS • •
*Overall face 495mm lay on 500 mm square ceiling "T" supports
Location clipson border (2 eachon opposite sides)
Location clipson border (2 each
on opposite sides)2 5
Detail X ADTA ‘PIP’ heights
Standard ‘PIP’ heights:25mm or 27.5mmNB: Non-standard heightsavailable on request
Detail Y ADTB ‘PIP’ heights
Standard ‘PIP’ height:
25mmNB: Non-standard heightsavailable on request
DetailX & Y
Type ADTF Type ADTT (*ADTH)
Type ADTA - ADTB Type ADTM - ADTS
L x H
(L + 145) (H + 145) O/A
5 3
1 5
(L + 145) (H + 145) O/A
5 3 7
L x H
(L + 150) (H + 150) O/A
5 3
7 1 5
L x H
(L + 133) (H + 133) O/A
5 3
‘ Z ’
L x H
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L o u v r e F a c e d D i f f u s e r s
S E C T
I O N
8
31
(L-2) (H-2) ‘X’
2 5
Optiontype ‘AGF’
‘ Ø D ’
ADTF borderstyle shown(refer table 1)
E O / A h e i g h t r e q u i r e d
( r e f e r t o t a b l e 3 )
( R e f e r t a b l e 2 )
Optiontype ‘M’
1)
(L1-2) (H1-2) ‘X’
2 5
Effective
( R e f e r t a b l e 2 )
F O / A h e i g h t r e q u i r e d
( r e f e r t o t a b l e 3 )
‘ Ø D ’
Option type‘AGP’ fittedto the plenum
Optiontype ‘M’
1)
Table 2 - Available spigot sizes 3)Table 1 - Maximum Spigot Sizes
L x H Side Entry Top EntryAvailable for diffusers type
Nom. Max ØDmm Max ØDmm
150 148 123 ADT / F / A / B / T / M / S
225 222 198 ADT / F / A / B / T
300 298 278 ADT / F / A / B / T
375 353 353 ADT / F / A / B / T / H
450 4482) 398 ADT / F / A / B / T / M / S
525 4982) 498 ADT / F / A / B / T
600 5582) 558 ADT / F / A / B / T
Table 3 - Overall height diffuser + plenum
Reduced plenum sizesEffective plenum size L1 x H1 must be at least one sizedown on nominal L x H.
Plenum Option E min E max F min F max
AKV-ADT ‘0’ &‘M’ D+102 1000 D+132 1000
AKV-ADT AGF/AGP D+154 1000 D+184 1000
Notes:1) Also available with cord operated damper type MC2) 398 is maximum ØD for type M or MC dampers3) For performance guidance information on spigot size selection see page 29
ØDmmSubiect to limitations as shown in table 1 & as noted
98 198 348
123 222 398
138 248 448
148 278 498
158 298 558
178 313
‘D’
(L-2) (H-2) I/S
4 0
2 4 2
Optiontype ‘AGF’
I/S Plenum
2 7 2
‘D’
4 0
Option type‘AGP’ fitted to
the plenum
(L1-2) (H1-2)
Table 4 - ADT Side Entry
Spigot Length Dimension ‘X’Spigot Damper Order Suffix
Up to 178Ø 198 to 398Ø
YES - M - 75mm 100mm
NO - 40mm 40mm
Notes:1) For full plenum code details refer to page 282) All plenums, and if required transformations, are supplied loose for site
assembly by others3) All full size plenums are supplied with clips for diffuser face fixing
4) Holes (4) provided at top edge of plenum for hanging by others5) AGF and AGP damper adjustment requires core removal 6) Plenum can be internally lined – code D
(lining material 12mm black faced class O) foam
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L o u v r e F a c e d D i f f u s e r s
S E C T I
O N
8 Square Diffuser Type ADLQType ADLQ high capacity ceiling diffuser comprises a fixed diffuser face withplenum box supplied loose (to be fitted by others), where specified.
Low pressure drop and noise levels due to curved blade construction.
Available as a four-way face configuration.
For full details see publication 2/11/EN/...
Type
A = Diffuser face
AG = With OBD
AR = With rear
mounting ring Subframe
0 = Without installation subframe
E1 = Duct cross bar
Size (mm)
250
300
400
500
600
625
Not Used Powder coat finish
Order Code - Diffuser
ADLQ - A 250 0 0 P3 RAL 9010 20% Gloss / / / / / /
Plenum
Diffuser Type
ZH = horizontal spigot (supply)
AH = horizontal spigot (extract)
ZV = vertical spigot (supply)
AV = vertical spigot (extract)
M1) = Spigot, damper or blank
D = Lining or no entry
Spigot size
Not Used
Reduced plenum size or blankif standard diffuser size
Note : 1) Only available for horizontal spigot (ZH, AH)
Diffuser
Size
Order Code - Plenum
AK - ADLQ - ZH - D - M 400 x 198 x 6 0 0 / / /
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Type ADLQ-AK
Type ADLQ-AType ADLQ-AG
Ø D
K 50
H
Q 1
Q 2-58
Q 1
Q 2
4 2
1 0 8
Type ADLQ-AR
Q 2-55
ADLQ-AR
6 5
Performance Data
ADLQ louvre diffuser with ceiling effect (horizontal throw). Throw is the distance from diffuser to a velocity of 0.5 m/sfor a 4-Way discharge. All selections shown meet NC35 assuming 8 dB room attenuation.
Supply (4 - Way Discharge)
Extract
SizeLwnc 15 21 25 30 35
Pressure Drop (Pa) 10 15 20 30 45
250Volume (l/s) 30 38 45 55 62
Throw (m) - - 1.0 1.2 1.4
300Volume (l/s) 45 53 65 80 95
Throw (m) - - 1.0 1.2 1.3
400Volume (l/s) 80 100 115 150 170
Throw (m) - 1.1 1.2 1.9 2.5
500Volume (l/s) 135 160 175 225 275
Throw (m) - 1.2 1.6 2.0 2.7
600Volume (l/s) 210 275 290 350 450
Throw (m) - 2.0 2.1 2.75 3.5
SizeLwnc 15 21 25 30 35
Pressure Drop (Pa) 10 15 20 30 45
250 Volume (l/s) 30 38 45 54 60
300 Volume (l/s) 50 60 70 90 100
400 Volume (l/s) 90 110 125 170 200
500 Volume (l/s) 180 200 250 300 375
600 Volume (l/s) 300 375 450 500 600
Size ØD H K Q1 Q2
250 158 262 204 248 198
300 158 262 254 298 248
400 198 307 354 398 348
500 248 357 454 498 448
600 313 420 554 598 548
L o u v r e F a c e d D i f f u s e r s
S E C T
I O N
8
Dimensions
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L o u v r e F a c e d D i f
f u s e r s
S E C T I
O N
8 Circular Diffuser Type ADLRAluminium diffusers Type ADLR and ADLR-Q arerecommended for flush installation in ceilings.
Circular or square configurations can be used instandard ceiling systems.
Plenum boxes are available with top or side entry.
For full details see publication 2/16/EN/...
Order Code
Type
ADLR
(Circular diffuser)
Q = Square diffuser
(or blank)
A = Diffuser face
C = With flap damper
AR = With connecting ring
Top entry plenum
ZV = Supply air
AV = Extract air
Side entry plenumZH = Supply air
AH = Extract air
M = Damper in plenum box
spigot4)MN = Volume setting by
cord and measurement
test point
L = Spigot with lip seal
Accessories
RZ Circular flap damper and equalising grid
Please order accessory RZ separately stating size required
2) Size
of Face
section
593
598
Size of
Diffuser
1
2
3
4
5
6
7
8
0 = Standard surface finish stove enamelled
to 3)RAL 9010
S1 = Stove enamelled to RAL...
0 = Without subframe1)D0 = Duct subframe1)F0 = Standard subframe
Type ADLR - Q
593 - for installation in visible T-bar
598 - for installation in ceiling grid with rear sub-structure
State colour
No entry for standard construction
ADLR - Q - ZH - M - L 598 x 4 0 0 S1 RAL 9016 / / / / /
Ø D
K
H 2
ØR1 (ADLR)
ØP
3 5
6
H 1
ØR1 (ADLR)
ØD
ØB
1) Required on constructions without plenum box2) Only on variants with square face section Type ADLR - Q3) GL = Gloss level 50 - 60%4) Available side entry plenum only
Type ADLR-Q Type ADLR-Q
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L o u v r e F a c e d D i f f u s e r s
S E C T
I O N
8
Performance Data
Dimensions
Linear Pattern based on a single row of Diffusers.Square Pattern with Diffusers at equal centres.
Ceiling diffuser with ceiling effect (horizontal throw). At diffuser centres shown, maximum terminal velocity is0.25 m/s at 1.0m below ceiling. All selections shown meet NC38 assuming 5dB room attenuation including side
entry plenum box and spigot damper (fully open).
Diffuser Centres (m)
Size Selection Method 1.2 (m) 1.8 (m) 2.4 (m) 3.0 (m) 3.6 (m) 4.2 (m)
Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa
Linear Pattern 35 22 55 60 80 130 - - - - - -1
Square Pattern 32 19 45 35 60 68 - - - - - -
Linear Pattern 50 15 80 35 110 70 - - - - - -2
Square Pattern 35 7 55 17 80 35 100 58 - - - -
3Linear Pattern 60 7 95 17 130 30 175 60 - - - -
Square Pattern 50 5 65 8 95 17 130 30 155 50 - -
4Linear Pattern - - 110 13 150 25 200 35 250 55 300 85
Square Pattern - - 70 5 100 10 140 19 180 32 220 40
5Linear Pattern - - - - 180 23 230 37 280 65 360 90
Square Pattern - - - - 130 12 160 19 200 25 260 50
6Linear Pattern - - - - 220 15 260 25 330 40 400 50
Square Pattern - - - - 150 9 180 13 220 15 290 30
7Linear Pattern - - - - 240 15 290 20 360 37 450 50
Square Pattern - - - - 175 8 210 10 270 19 330 32
8Linear Pattern - - - - 250 13 320 22 400 30 500 50
Square Pattern - - - - 180 7 220 10 280 17 360 28
Size Ø B Ø D H1 H2 K Ø P Ø R1 Ø R2
1 201.5 123 233 220 266 202 244 192
2 257.5 158 233 250 290 258 300 248
3 313.5 198 233 295 372 314 356 304
4 369.5 248 267 345 476 362 412 360
5 425.5 248 267 345 476 426 468 416
6 481.5 313 298 410 567 482 542 4727 537.5 313 298 410 590 578 598 528
8 593.5 313 298 410 615 590 654 584
ØR2-55
ØR1
ØR2
3 5
ØR2-55 3 5
593 or 598
ØR2
Type ADLR Type ADLR-Q
ØR2-51
6 0
Type ADLR-AR/ADRL-Q-AR
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P e r f o r a t e d F a c e D i f f u s e r s
S E C T I
O N
9 Perforated Diffuser Type ADLQLType ADLQL ceiling diffuser comprises a perforated diffuser face with rearplenum box, top or side entry.
Spigot dampers are only available with side entry plenums. Blanking plates areavailable on request for site fitting by others.
For full details see publication 2/15.1/B/...
Order Code
Type
K = 27mm cover border
P = 11mm flush border
Supply
ZH = horizontal spigot
ZV = vertical spigot
Extract
AH = horizontal spigot
AV = vertical spigot
Note: 1) Only available for horizontal spigot2) Only available for flush border & layin “T” bar
Size (mm)
300
400
500
600
295 2)
595 2)
Not used
M = spigot1) damper or blank
D = Lining1) or blank
Spigot size
Reduced plenum size or blank
if standard diffuser size
Powder Coat finish
ADLQL - K - ZH - D - M 300 X 158 X 0 0 0 P3 RAL 9010 20% Gloss / / / / / /
Dimensions
Size Ø D DA1 DA2 H1 H2 H3 K1 K2 Q1 Q2
300 158 290 300 300 75 83 274 269 336 298
400 198 390 400 340 75 83 374 369 436 398
500 248 490 500 390 75 83 474 469 536 498
600 313 590 600 455 75 83 574 569 636 598
295 158 - 300 300 - 83 271 266 - 295
595 313 - 600 455 - 83 571 566 - 595
Blanking Plates
tes
Blanking plate
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P e r f or
a t e d F a c e D i f f u s e r s
S E C T
I O N
9
Type ADLQL-K-V Type ADLQL-P-V
ØD
K2
H 2
DA1
Q1
8
ØD
K2
H 3
Q2
DA2
Type ADLQL-K-H Type ADLQL-P-H
DA1
Q1
8
K1
Ø D
H 1
Q2
DA2
K1
Ø D
H 1
Supply (4 - Way Discharge)
Size Pressure Drop 10 15 20 25 30
300Volume (l/s) 45 60 70 78 85
Throw (m) 0.7 0.8 1.0 1.1 1.2
400Volume (l/s) 80 100 118 130 145
Throw (m/s) 0.85 1.1 1.3 1.4 1.5
500Volume (l/s) 110 135 158 175 190
Throw (m) 0.85 1.1 1.4 1.5 1.6
600Volume (l/s) 170 210 240 260 290
Throw (m/s) 1.2 1.4 1.6 1.8 2.0
Extract
Size Pressure Drop 10 15 20 25 30
300 Volume (l/s) 80 105 120 135 150400 Volume (l/s) 105 130 150 170 180
500 Volume (l/s) 135 160 185 210 225
600 Volume (l/s) 210 260 300 330 360
Note: Pressure drop and acoustic data shown is for top entry spigot.
For side entry supply & extract acoustic and pressure drop data refer to leaflet 2/15.1/B/...
Performance Data
Horizontal throw distance from diffuser to a velocity of 0.5 m/s for a 4-Way discharge. All selections shown meet NC35assuming 8 dB room attenuation.
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D i s c V a l v e s
S E C T I O
N
1 0 Disc Valve Type LVS · Z-LVS
The disc valves consist of a valve ring, central disc and installation subframe. To guarantee a
perfect seal, the valve ring is fitted with aperipheral sealing strip. A bayonet fitting is usedto mount the unit in the installation subframe.
The air volume flow is adjusted by rotating thecentral disc which alters the gap between thedisc and the valve ring. The central disc is heldin position with a locknut.
For full details see publication 1/4/EN/...
Order Code
Type LVS (Extract Valve) Type Z-LVS (Supply Valve)
Dimensions
Supply
Z - LVS
Extract
LVS
Size Ø (mm)
100
125
160
200
G1 - Subframe
O - No Subframe
160 G1 / /
Size B C D E
100 40 99 132 104
125 46 124 162 129
160 54 159 205 164
200 61 199 245 204
Ø C
Ø E
Ø D
50
B
8
Ø C
Ø E
Ø D
50
B
8
S
38
LVS
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S E C T
I O N
1 0
D i s c
V a l v e s
Type LVS (Extract Valve)
Performance Data
Note: Maximum Noise Level NC38, assuming 8dB room attenuation.Throw to a terminal velocity of 0.2 m/s. Performance based on air gap dimension S = 9mm.
Type Z-LVS (Supply Valve)
SizePressure drop (Pa)
10 20 30 50 70
Volume (l/s) 10 15 18 23 28100
Throw (m) 0.7 1.1 1.5 2.0 2.7
Volume (l/s) 13 18 21 28 33125
Throw (m) 0.9 1.4 1.6 2.0 2.7
Volume (l/s) 15 22 27 35 42160
Throw (m) 0.9 1.5 1.8 2.5 3.0
Volume (l/s) 20 28 35 45 55200
Throw (m) 1.5 2.1 2.8 3.8 4.5
39
Size Air gap
(mm) S
Air Volume (l/s)
10 20 30 40 50 60 80 100 120
-15 - - - - - - - - -
-5 30 120 - - - - - - -100
0 12 50 112 300 - - - - -
+5 5 28 56 100 - - - - -
-15 70 270 - - - - - - -
-5 14 50 100 200 - - - - -125
0 5 25 50 89 139 - - - -
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S w i r l D i f f u s e r s
S E C T I O
N
1 1
The layout and centres of the swirl diffusers must be carefully considered to ensure maximum comfort is achieved. Wehave provided three alternative arrangements for positioning diffusers, selection methods 1, 2 and 3. Each of theselections will ensure that the maximum terminal velocity in the occupied zone (VH1) will not exceed 0.25m/s, 1.0mbelow ceiling.
Swirl Diffuser Selection Methodology
Swirl diffusers offer a high induction air distribution method thatenables the highest comfort criteria to be achieved.
The following range of diffusers each discharge an air streamhorizontally across the ceiling. The entrainment and expansion takesplace rapidly, and the velocity decay of the air-stream occurs in directproportion with the distance from the device.
High turbulence occurs immediately within the proximity of thediffuser, which allows high air change rates to be successfully suppliedinto the room. With careful selection swirl diffusers can handle up to30 air changes per hour while still satisfying relevantcomfort criteria.
2 . 7 m
1 . 0 m
Minimum Diffuser CentresA, B or C
X
VH1 –
Occupied Zone
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S wi r
l D i f f u s e r s
S E C T
I O N
1 1
When the diffuser rows are at least 4.0m apart,the minimum diffuser centres should be ‘A’.
When the diffuser rows are at least 3.0m apart,the minimum diffuser centres should be ‘B’.
When the diffuser centres in each direction are equal,the minimum diffuser centres should be ‘C’.
Selection Method 1 - Rows ≥ 4.0m apart
M i n i m u m D i f f u s e r a t
C e n t r e s A
Diffuser Rows at Centres≥ 4.0m
Selection Method 2 - Rows ≥ 3.0m apart
M i n i m u m D i f f u s e r a t
C e n t r e s B
Diffuser Rows at Centres≥ 3.0m
Selection Method 3 - Rows on Square Grid
M i n i m u m D i f f u s e r a t
C e n t r e s C
Diffuser Rows atCentres C
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S w i r l D i f f u s e r s
S E C T I O
N
1 1 Type SDW
Square faced adjustable blade swirl diffuser. Type SDW is available in a range of sizes.
The removable face plate is held in the plenum box with a centre screw fixing.The head of the screw is covered with a decorative cap.
The plenum box is available with side or top entry spigot and a volume control damper.
For full details see publication 2/7/EN/...
Order Code - Diffuser
Type
Q = Square flush face
QL = Square lay in T bar
QM15 = Square lay in threadline 15 x 16
QM15 = Square lay in threadline 26 x 16
QS15 = Square lay in threadline 15 x 8
QS26 = Square lay in threadline 26 x 8QB = Burgess Ceiling
Z = Supply
A = Extract
F = Face Only 2)
Blank or
oversized ceiling
module size
Number of blades
Diffuser
active size 1)Not used
0 = Supply air: black air control blades
Extract air: no air blades
Q11 = Extract air: black air control blades
Q21 = Supply air: white air control blades
Extract air: white air control blades
Powder coat finish
SDW - QS - Z 500 - 24 - 600 0 P3Q21 RAL 9010 20% Gloss / / / / / /
Note: 1) Standard sizes
Q - 300 x 8, 400 x 16, 500 x 24, 600 x 24, 600 x 48, 625 x 24, 625 x 54
QS15 - 300 x 8 x 600, 400 x 16 x 600, 500 x 24 x 600, 600 x 24 x 600
QB/QL/QS26 - 300 x 8 x 600, 400 x 16 x 600, 500 x 24 x 600, 600 x 24 x 600, 600 x 48 x 600
QM15/QM26 - 300 x 8 x 600, 300 x 8 x 750, 400 x 16 x 600, 400 x 16 x 750, 500 x 24 x 600, 500 x 24 x 750, 600 x 24 x 600,
600 x 24 x 750, 600 x 48 x 600, 600 x 48 x 750, 625 x 24 x 750, 625 x 54 x 750
2) Face section without central fixing hole, for use on lay in ceilings QL, QS15, QS26, QM15 & QM26 without rear plenum
Order Code - Plenum
Plenum
Diffuser
ZH = Horizontal Spigot (Supply)
AH = Horizontal Spigot (Extract)
ZV = Vertical Spigot (Supply)
AV = Vertical Spigot (Extract)
M = Spigot Damper
MN = Spigot damper and test point connection1)
or no entry
Spigot2)
Size (mm)
D = Lining
or no entry
Number of blades
1) Only available on ZH type2) Refer to product data sheet for spigot sizes available with each plenum size
DiffuserActive Size
AK - SDW - ZH - D - MN 500 x 198 x 24 /
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Spigot Lengths
Spigot Length Dimension ‘X’Spigot Damper Order Suffix
Up to 178Ø 198 to 398Ø
YES - M - 75mm 100mm
NO - 40mm 40mm
S E C T
I O N
1 1
S wi r l D i f f u s e r s
Performance Data
Swirl diffuser with ceiling effect (horizontal throw). Minimum diffuser centres ensure maximum terminal velocity is0.25 m/s at 1.0 m below ceiling. All selections shown meet NC38 assuming 5dB room attenuation including side entryplenum box and spigot damper (fully open).
For Selection Methodology see page 40.
Type QFace-mounted
Type QS15To ‘Lay-on’ Tegular tee-bar15mm wide x 8mm deep
Type QLTo ‘Lay-on’FLAT tee-bar
Type QM15To ‘Lay-on’Tegular tee-bar15mm wide x 16mm deep
Q Size ØD P K
298 x 298 300 x 8 158 250 288
398 x 398 400 x 16 198 295 370
498 x 498 500 x 24 198 295 474598 x 598 600 x 24 248 345 565
598 x 598 600 x 48 248 345 588
‘K’ I/S PLENUM ‘X’
‘ P ’
Ø D
See Type below
‘K’ I/S PLENUM
2 5 0
See Type below
Q 8 15
5
ace s ze
1584 face size
8 15
1 6
584 face size
Diffuser Centres (m)
Size Selection Method 1.2 m 1.8 m 2.4 m 3.0 m 3.6 m 4.2 m
Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa
1, Centres A 100 37 95 30 105 40 120 46 140 65 - -
400 x 16 2, Centres B 75 20 70 18 75 20 85 27 100 47 - -
3, Centres C 25 5 45 7 65 15 85 27 110 43 - -
1, Centres A 140 40 120 27 130 33 140 38 160 50 - -
500 x 24 2, Centres B 100 20 85 14 90 18 100 20 120 27 - -
3, Centres C 35 5 55 9 75 11 100 20 120 27 - -
1, Centres A 150 18 145 17 110 20 180 25 210 35 250 50
600 x 24 2, Centres B 110 10 105 9 110 10 130 14 152 18 180 25
3, Centres C 40 3 65 4 85 6 115 11 170 23 220 38
1, Centres A 190 23 170 18 180 20 195 24 220 30 300 55
600 x 48 2, Centres B 130 11 110 8 120 9 140 13 180 22 200 29
3, Centres C 50 2 80 4 90 6 120 9 180 22 230 33
Note: Vol = Volume (l/s) Pa = Pressure Drop
Dimensions
43
26 73
1
599
3
584
Type QM26To ‘Lay-on’ Tegular tee-bar26mm wide x 16mm deep
Type QBTo ‘Push-In’ spring tee-barSuitable for ‘tee’ or ‘omega’ type
Type QS26To ‘Lay-on’ Tegular tee-bar26mm wide x 8mm deep
Tile levelled via centrescrew i.e. no location pip
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S w i r l D i f f u s e r s
S E C T I O
N
1 1 Type VDW
Adjustable swirl diffusers type VDW are supplied in a range of sizes. The faceplate is circular to suit the architectural requirements
The removable face plate is held in the plenum box with a centre screwfixing. The head of the screw is covered with a decorative cap.
The plenum box is available with side or top entry spigot, with volumecontrol damper and / or lip seal on request.
For full details see publication 2/7/EN/...
Order Code
Type
R = Circular
Z = Supply
A = Extract
V = Top entry plenum
H = Side entry plenum
L = Spigot with lip seal
M = Volume control damper
with adjustable lever1) MN = Volume control damper
with cable and test connection
0 = Supply air: black air control blades
Extract air: no air blades
Q11 = Extract air: black air control blades
Q21 = Supply air: white air control blades
Extract air: white air control blades
Size (mm) Not Used Powder coat finish
VDW - R - Z - V - M - L 600 x 24 0 P10 RAL 9010 / / / / / 20% Gloss /
NOTE: 1)Only for supply air with side entry
ØR/Q
ØB
ØD
4 0
H 1
ØR
~32
K
H 2
3 5
ØR
ØP
8
Ø D
Type VDW-...-V
Type VDW-R-...-
Type VDW-R-...-H
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Performance Data
Diffuser Centres (m)
Size Selection Method 1.2 m 1.8 m 2.4 m 3.0 m 3.6 m 4.2 m
Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa
1, Centres A 100 37 95 30 105 40 120 46 140 65 - -
400 x 16 2, Centres B 75 20 70 18 75 20 85 27 100 47 - -
3, Centres C x C 25 5 45 7 65 15 85 27 110 43 - -
1, Centres A 140 40 120 27 130 33 140 38 160 50 - -
500 x 24 2, Centres B 100 20 85 14 90 18 100 20 120 27 - -
3, Centres C x C 35 5 55 9 75 11 100 20 120 27 - -
1, Centres A 150 18 145 17 160 20 180 25 210 35 250 50
600 x 24 2, Centres B 110 10 105 9 110 10 130 14 152 18 180 25
3, Centres C x C 40 3 65 4 85 6 115 11 170 23 220 38
1, Centres A 190 23 170 18 180 20 195 24 220 30 300 55
600 x 48 2, Centres B 130 11 110 8 120 9 140 13 180 22 200 29
3, Centres C x C 50 2 80 4 90 6 120 9 180 22 230 33
Note: Vol = Volume (l/s) Pa = Pressure Drop
S E C T
I O N
1 1
S wi r l D i f f u s e r s
Dimensions
ØR Size B D H1 H2 P K
300 300 x 8 280 158 200 250 278 290
400 400 x 16 364 198 200 295 362 372
500 500 x 24 462 198 200 295 460 476
600 600 x 24 559 248 200 345 557 567
600 600 x 48 580 248 300 345 578 590
Swirl diffuser with ceiling effect (horizontal throw). Minimum diffuser centres ensure maximum terminal velocity is0.25 m/s at 1.0 m below ceiling. All selections shown meet NC38 assuming 5dB room attenuation including side entryplenum box and spigot damper (fully open).
For Selection Methodology see page 40.
If the diffuser is installed below a closed ceiling (i.e. freely suspended) a stable discharge can be achieved if aperipheral collar > 50mm is fitted.
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S w i r l D i f f u s e r s
S E C T I O
N
1 1 Type FD
Type FD swirl diffusers are available in various sizes. Depending on thearchitectural requirements, the face plate can be circular or square. The fixed
air control blades on the diffuser face are arranged radially.
The diffuser face can be attached or removed via a centre fix screw into theplenum box. The screw head is covered with a decorative cap. The plenumbox can be supplied with either top or side entry spigots and on request,with spigot lip seals and volume control damper.
If a circular diffuser face is ordered, the plenum box with side entry spigothas a 35mm extension piece fitted to the plenum.
For full details see publication 2/6/EN/...
Order Code
Type
Q = Square
R = Circular
Z = Supply
A = Extract
V = Top entry plenum
H = Side entry plenum
L = Spigot with lip seal
M = Volume control damper with single blade1)MN = Volume control damper with cable and test connection
Size Not Used Powder coat finish
FD - Q - Z - V - M - L 400 0 P10 RAL 9010 / / / / / 20% Gloss /
NOTE: 1) Only for side entry spigot
K
H 2
Ø D
Q
8 3 5
K
H 2
Ø D
ØR
ØP
8
R L
fixing screwfor diffuser face
H
ØR/Q
ØB
ØD
4 0
2 0 0
Type FD-Q-...-H Type FD-R-...-H
Type FD-R-...- Type FD-Q-...-
Type FD-...-V
46
-
8/20/2019 Quick Selection GuideGrillesDiffusors
47/60
SizeH = (side entry) V = (top entry)
Vol Pa Vol Pa
300 65 40 65 65
400 110 40 115 70
500 170 45 140 80
600 200 40 180 55
Selections shown meet NC38 assuming 5dB room attenuation.
Diffuser Centres (m)
Size Selection Method 1.2 m 1.8 m 2.4 m 3.0 m 3.6 m 4.2 m
Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa Vol Pa
1, Centres A 85 65 75 60 80 63 - - - - - -
300 2, Centres B 60 36 54 30 58 33 60 36 70 50 80 63
3, Centres C x C - - 35 13 45 20 58 33 80 63 - -
1, Centres A 125 55 110 40 118 48 120 50 140 65 - -
400 2, Centres B 85 25 78 20 82 23 90 27 100 35 120 50
3, Centres C x C - - 52 9 68 15 80 21 100 35 130 55
1, Centres A 150 40 130 28 135 30 150 40 170 48 - -
500 2, Centres B 105 18 92 14 97 16 105 18 120 23 140 30
3, Centres C x C - - 65 7 85 12 100 17 125 25 155 42
1, Centres A 160 26 145 20 150 21 160 26 185 30 220 45
600 2, Centres B 115 12 100 9 110 11 120 13 135 15 160 25
3, Centres C x C - - 70 5 95 8 115 12 145 20 175 28
Note: Vol = Volume (l/s) Pa = Pressure Drop
Performance Data S E C T
I O N
1 1
S wi r l D i f f u s e r s
Swirl diffuser with ceiling effect (horizontal throw). Minimum diffuser centres ensure maximum terminal velocity is0.25 m/s at 1.0 m below ceiling. All selections shown meet NC38 assuming 5dB room attenuation including side entryplenum box and spigot damper (fully open).
For Selection Methodology see page 40.
If the diffuser is installed below a closed ceiling (i.e. freely suspended) a stable discharge can be achieved if aperipheral collar > 50mm is fitted.
Dimensions
Size Ø B Ø D Ø L Q Ø R H2 K Ø P
300 280 158 254 298 300 250 290 278
400 364 198 336 398 400 295 372 362
500 462