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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

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      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 

    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/...

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    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 

    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/...

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      r  i  l  l  e  s

    Order Code

    Type

    AF 

    AH

    WAP

    AHR (20mm border)

    WAPR (20mm border)

    Blade deflection

    15°

    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...

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    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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    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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    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 -

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    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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      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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    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 /  /  / / / /

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      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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    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 

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      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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    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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      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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      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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    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

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    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-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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      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 / / /

    32

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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

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    Dimensions

    33

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      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

    34

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    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

    35

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      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

    36

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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 

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     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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      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 - - - -

    +5

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      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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    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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      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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      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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      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

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    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