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Linear DiffusersSquare DiffusersLuminaire DiffusersSwirl DifffusersCircular DiffusersJet DiffusersAir Valves

DIFFUSERS

ssers

rs

2

www.waterloo.co.uk Tel: +44 (0)1622 711500

Why Waterloo Reliability

Innovation

Symbols Used

Vt

Vn Vo Face Velocity Vr Room Air Velocity qv

3

Ps Lw

LWA W

veff

Pd

3


Diffusers

ContentsDIFFUSERSLinear Diffusers

4

6

7

LCS Linear Slot Diffusers

Plenum Chambers

Luminaire Diffusers

Square Diffusers

24

DFA Louvred Face Diffusers

29

32

33

37

Swirl Diffusers39

SDFS-P Perforated Face Swirl Diffusers

43

44

47

Circular Diffusers

Jet DiffusersWDJ Drum Jet Diffusers

62

63

4


Diffusers

Introduction

ENDS

Features

included

throw left throw

Vertical throw

Selection Criteria

Noise level is based on diffuser sound

R

No of Slots

EndsFinish

No of Slots

EndsFinish

ORDER EXAMPLEORDER EXAMPLE

2 3

-3 -2

S2 S3 S4

cutout

cutout73

32 67

Dim E + 52

C

Plenum l/SDim E

35Spi

got

Dia

met

er65

BA

D

AIR FLOW RATE l/s per m length

Throw (m)Vt = 0.5m/s

dBA LEVEL

diffusion &Horizontal

diffusionHorizontal

exhaust airExhaust

300

400

500

600

700

12 6055

50-25

25-12.5

12.5-6.25

2.5-1.25

100-5075-37.5

1

2

3

4

504540353025

20

15

10987

6

5

4

3

2

200

1009080

70

60

50

40

30

20

PRESSURE DROP (Pa)

Nº OF SLOTS


Diffusers

Introduction

ENDS

Features

Selection Criteria


R

9676

9962

No of Slots

EndsFinish

No of Slots

EndsFinish


2 3

-3 -2

7 7Stack length (excl ends) = nominal

7 7

Flange Thickness

Dim F

60

Dim CDim D

Dim ADim B12

0

25

Dim E + 52

Plenum l/SDim E

35Spi

got

Dia

met

er


Throw (m)Vt = 0.5m/s

dBA LEVEL


diffusionHorizontal

exhaust airExhaust

300

400

500

600

700

12 6055

50-25

25-12.5

12.5-6.25

2.5-1.25

100-5075-37.5

1

2

3

4

504540353025

20

15

10987

6

5

4

3

2

200

1009080

70

60

50

40

30

20

PRESSURE DROP (Pa)

Nº OF SLOTS

6


Diffusers

High Flow DiffuserHF IntroductionThe Waterloo High Flow diffusers are designed to give exceptional performance and the visual appearance of an architectural shadow gap that has become a very desirable design feature within buildings.High Flow Diffusers are available in two variants: HFC (High Flow Coanda), which is usually ceiling mounted, providing a horizontal throw through the Coanda effect; and HFD (High Flow Directional) which is generally mounted in a wall for directional horizontal projection of air into a space or provide a coanda throw if positioned close to a horizontal surface.The High Flow diffusers are designed to handle a range of air capacities from low to high volumes. It features an excellent air distribution pattern to eliminate draughts in the occupied zone. Available as a single slot and multi sections for continuous linear runs. HFC and HFD are manufactured using aluminum extrusions and feature easily adjustable hidden air pattern control elements.The standard bordered version is available with a RAL polyester powder coated border with black internals. The Plasterline version (PL) is available when a plastered in product is required, the internals of the products are finished in black to maintain the shadow gap appearance.Product DescriptionHFC High Flow CoandaHFD High Flow DirectionalHFC-PL High Flow Coanda PlasterlineHFD-PL High Flow Directional Plasterline Features• High capacity• Strong coanda pattern for best performance• Hidden control elements• Continuous joint detail for long runs.• 3 slot sizes availableFinishes• HFC/DPPG9010 (RAL 9010 Gloss - 80% Gloss White)PPM9010 (RAL 9010 Matt - 20% Gloss White)PPM9006 (RAL 9006 Matt - 30% Gloss Silver) Other colours available on request• HFC/D-PLAnodised black onlySizes3 standard slot sizes are available 25mm, 40mm and 60mm, standard module lengths are 1500mm.

Selection Criteria2.7m ceiling height, increase throw by 1m for every increase of 1m in ceiling height. Horizontal throw is based on 10°c cooling.Selection Example HFC/40/1000Total air flow rate = 130 l/sMaximum throw = 7.2mPressure drop = 20PaSound = 36dBA

HFC/25/1800/PPM9010/ENDSTypeSlot sizeLengthFinishEnds caps

Order exampleOrder example

HFC HFD

HFC - PL HFD - PL

Performance Nomogram

C

AB(STD)

DD + 12 mm

C

C

AB

(STD

)

DD

+ 1

2 m

m

AB

(PL)

DD

+ 1

2 m

m

C

A B (PL)

DD + 12 mm


MAXIMUM RADIUSOF DIFFUSION (Horizontal)

Vr = 0.10 m/s (Vt = 0.25 m/s)

MEDIUM RADIUSOF DIFFUSION (Horizontal)

V r = 0.15 m/s (Vt = 0.5 m/s)

VERTICAL PROJECTIONVt = 0.25 M/S

dBA LEVEL


diffusionHorizontal

exhaust airExhaust

300

400

500

600

700

25

60

40

25

20

12 6055

50-25

25-12.5

2.5-1.25

100-5075-37.550

4540353025

12

10

876

5

4

3

2

1

15

10

9

876

4

23

5

1

1

20

15

10987

6

45

23

200

1009080

70

60

50

40

30

20

PRESSURE DROP (Pa)

12.5-6.25

Size in mm

Dim Size 25 40 60

A 25 40 60

B (STD) 45 45 45

B (PL) 55 55 55

C 60 60 60

D 88 103 123

7


Diffusers

Linear Slot DiffusersIntroduction

CS diffusers are suitable for all commercial and industrial

diffuser

Ends

ED Features

Finishes

No of SlotsFinish

ORDER EXAMPLE

Slots Dim E Dim F

46 34

2 Slot 72

3 Slot

4 Slot

6 Slot 236

7 Slot 274 263

No of slots

Style 2 3 4 6 7

CS-F

CS-P

CS-J

Dim F

Riveton siteby others

Riveted plenum mounting Type PLS

(Access required both sides)

Standard plenum mounting Type PB

Dim E

50

CS-F

CS-J CS-M

CS-M TEG CS-S & EF

CS-TW

CS-PDim B

Dim C

Dim D

Dim B

Dim C

Dim D

Dim B

Dim C

Dim D

Dim A

Dim C

Dim D

Dim A

Dim B

Dim D-2Dim D

Dim A

20

20

5.18

5

20

80

5.18

03

8

61

20

Dim A

20

Dim A20

5.1808

5. 1

5. 185

5. 188. 1 03

Dim B

Dim C

Dim C

Dim D

Dim A

Dim B

Dim C

Dim D

Dim A

Dim B

20

8


Diffusers

Linear Slot DiffusersCS-F / CS-P / CS-J / CS-M / CS-S&E / CS-TW / CS Plank

DiffuserType

Dimension ReferenceNo of slots

1 2 3 4 5 6 7 8

CS-F

Dim A = O/A Face Flange Width 76 114 152 190 228 266 304 343

Dim B = Ceiling Cutout Width 57 95 133 171 209 247 285 324

Dim C = O/A Stack Width 45 84 122 160 198 236 274 312

Dim D = Outside Stack Width 40 79 117 155 193 231 269 307

CS-P





CS-J





CS-M





CS-M

TEG



Dim C = O/A Fitting Lug Width 56 94 132 170 208 246 284 323


CS-S

&

E-F

Dim A = O/A Face Flange Width - 114 152 190 228 266 304 343

Dim B = Ceiling Cutout Width - 95 133 171 209 247 385 324

Dim C = O/A Stack Width 40 79 117 155 193 231 269 -

Dim D = Outside Stack Width - 84 122 160 198 236 274 312

CS-TW





FLAT END CAPS

Diffuser Style

Dim L1 Dim L2 Dim L3

CS-MNominal Length

Nominal Length - 6

Nominal Length + 2

CS-M TEG

Nominal Length

Nominal Length - 6

Nominal Length + 2

L1 = Nominal length = O/A Flat ends

L3 = Ceiling opening lengthL2 = Inside stack length

Dummy hanging bracket fixing available for 1 to 8 slot

Plasterboard bracket fixing available for 1 to 6 slot

Typical PCE Settings

Standard CS Mitred Corner

CSP Plaster Frame

003

300

Angle

750X

X

StandardDiffusers are supplied with flow control vanes in lengths up to 750mm (to suit diffuser length).

Please note: CS-P requires that the ceiling cut out is exactly as described by 'Dim B' to avoid fitment issues due to the small dimension of the over hang of the border.

SpecialTo provide finer control of the air pattern, flow control vanes may be supplied in any specified length.

CS Plank(Typical size is 1200 x 150 with internal 2 slot

or 1200 x 300 with internal 3/4 slot)

Internal, external or vertical air throw available, please

specify on order.

External

Internal

9


Diffusers

Diffuser Style Dim L2 Dim L3 Dim L4

CS-F+ 3

CS-P+ 3 + 36

CS-J+ 3

+ 3

+ 6 + 2 + 6


CS-F- 39

CS-P- 7

CS-J- 33 - 24

- 39


- 6 + 2

Dim L3 = Ceiling opening length

Dim L4 = O/A face flange length

Dim L2 = Outside stack lengthDim L1 = Nominal length = inside stack

L4 = Ceiling opening length

L1 = Nominal length = O/A face flange

L3 = O/A stack lengthL2 = Inside stack length

L4 - Ceiling opening lengthL1 = Nominal length - O/A Flat ends

L3 - O/A diffuser LUG lengthL2 = Inside stack length

-3 -2

Linear Slot Diffusers


Diffusers

Linear Slot Diffusers



Vr = 0.10 m/s (Vt = 0.25 m/s)


V r = 0.15 m/s (Vt = 0.5 m/s)


dBA LEVEL


diffusionHorizontal

exhaust airExhaust

300

400

500

600

700

25

2012

12 6055

50-25

25-12.5

12.5-6.25

2.5-1.25

100-5075-37.5

1

2

3

4

87

6

5

504540353025

10

8765

4

3

2

1

12

10

876

4

3

2

1

15

10

9

8

7

6

5

4

3

20

15

10987

6

5

4

3

2

200

1009080

70

60

50

40

30

20

PRESSURE DROP (Pa)

Nº OF SLOTS

MINIMUM RADIUSOF DIFFUSION (Horizontal)

V r = 0.25 m/s (Vt = 0.85 m/s)

Selection Example

(1Way Throw)

Selection Example

(2Way Throw)

5

Selection Criteria


VrVt


Diffusers

Linear Slot DiffusersLCSIntroduction

LCS can be combined with the standard CS

Ends ED Features

Finishes

No of SlotsFinish


Dimensions



Vr = 0.10 m/s (Vt = 0.25 m/s)


V r = 0.15 m/s (Vt = 0.5 m/s)


dBA LEVEL


diffusionHorizontal

exhaust airExhaust

300

400

500

600

700

25

2

3

4

2012

12 6055

50-25

25-12.5

2.5-1.25

100-5075-37.550

4540353025

10

8765

4

3

2

1

12

10

876

5

4

3

2

1

15

10

9

8

7

6

5

4

3

20

15

10987

6

5

4

3

2

200

1009080

70

60

50

40

30

20

PRESSURE DROP (Pa)


V r = 0.25 m/s (Vt = 0.85 m/s)

12.5-6.25

Nº OF SLOTS

Selection Criteria


VrVt

Reduction-3 -2

‘B’

‘A’ 5LCS-F

‘B’

‘A’ 1.5LCS-P

‘B’

‘A’ 1.8LCS-J

‘A’ 30LCS-TW

‘B’

‘A’ 30LCS-M

Number of Slots

LCS-F 2 3 4

LCS-J 2 3 4

2 3 4

LCS-P 2 3 4

96

2 3 4

223 299


Diffusers

Linear DiffusersIntroduction

multi-slot 2 way diffusers may be adjusted to suit site

Ends

ED Features

requirements

adjustment of air diffusionFinishes

No of SlotsFinish


DSL

DSL-D

35 -

60

25CB

A

25

BC

67

A

PivotLine

300

400

500

600

700

20

10

5

1

50

1

2

3

4

8

7

6

5

37

45

53

2910

20

30

5

3

2

5

10

20

200

10090

80

70

60

50

40

30

20



Vr = 0.10 m/s (Vt = 0.25 m/s)


Vr = 0.25 m/s (Vt = 0.85 m/s)

dBA LEVEL


exhaust air

PRESSURE DROP (Pa)

Nº OF SLOTS

Selection Criteria


VrVt

A C

46

DSL-2

DSL-3

DSL-4

222

DSL-6 237 279

DSL-7

336

DSL-D22

DSL-D23

DSL-D33 237

DSL-D34 327

DSL-D44

Dimensions

DSL-D

DSL

-3 -2

slots in each direction


Diffusers

Linear Fan Coil Diffusers

Selection Criteria

r

Introduction

Ends Features

Finishes

WidthFinish


-4 +2 +3

WidthWd

X Y

FCD2 FCD2

236 244

264 294

336 344

364 394

436 444

FCD

2 4 -

4 7 - - - -

6 3 6 -

4

6 29

27 33

432 2 3 -

3 4 -

3 2 4 -

4 6 3

3 6

6 33 4

7 36 34

9 6 36

7

792 3 6 27

3 7

936 4 32 3 6 29

4 9 34 3 7

4 33

6 37 4

7 39 37

6

6

Way

hr

ow

Way

hr

ow

2 W

ay

hrow

2 W

ay

hrow

P s S

uly

P s S

uly

P s E

trac

t

P s E

trac

t

L w

dA

L w d

A

FCD1Y

56

WdX

FCD2Y

56

WdX

Y

Nom. L + 30Nom. L

(FCD1)

Nom. L + 12

FaceView

Left hand end capThrow direction Right hand end cap


Diffusers

Linear DiffusersPlenum ChambersIntroduction

terminal air resistance is very low relative to the

Low-Line Plenum chamberSE TE EE

Circular Connection

Installation

Plenum Chamber Width

Entry

ORDER EXAMPLE

Spi

got

diam

eter

+ 1

00 m

m

50

Hei

ght

6535

Width

Typical

543

2

1

Pivo

tLi

ne

Pivo

tLi

ne

450

500

600

20

64

2

10

1

125Ø

200Ø

250Ø

315Ø

400Ø

500Ø

160Ø

100

150

200

250

400

450

500

600

300

350

1000

900

800

350

300

700

600

500

450

400

250

200

150

100

600

500

450

200

250

300

350

400

100

400

350

3008 slot

250

200

150

100

50

40

7 slot

6 slot

5 slot

4 slot

3 slot

2 slot

1 slot

50

60708090

100

150

200

250

300350400450500

600

Spigotdiameter(mm)

rate (l/s)Air flowSpigot air

velocity(m/s)

Width(mm)

Height(mm)

Plenum dimensions

Width(mm)

Height(mm)

Rectangularor square spigot

Sta

ndar

d CS

Slo

t W

idth

s

Spigot Air VelocitySelection Guide

m/s dBA2.0 252.5 303.0 353.5 404.0 45

Example

pressureDiffuser

loss (Pa)

Diameter 97 247 397

22 92 229

Low-Line

FDC

installation within

FDQ


DiffusersAdjustable Curved Vane DiffusersIntroduction

to any increment between the minimum and

is recommended that ACD diffusers are not located

dimension

dimension

Features

Finishes

Selection CriteriaPerformance data is based on diffusers mounted in a

w

ACD2

Patterns

SF

25

Sta

ck s

ize

= d

uct

size

-19

Sta

ck s

ize

= d

uct

size

-19

275

16T25T32T

25T16T

32T

27

25

Nom

inal

duc

t &

diff

user

siz

e

Nom

inal

duc

t &

diff

user

siz

e

5

25T32T

16T25T32T

50

OptionalOBSS / ED

Duct width

Finish

ORDER EXAMPLE

25

30

40

50

100

150

200

300

400

500

1000

1500

6.05.0

4.0

3.0

2.0

1.0

6.05.0

4.0

3.0

2.0

1.0

6.07.0

5.0

4.0

3.0

2.0

6.07.0

10.0

5.0

4.0

3.0

2.0

1.0

1

5

10

20

250

300

400

500

600

1.0

4.0

3.0

2.0

1.0

0.5

61

53

45

37

29

1

5

10

20

0.5

1.0

2.0

3.0

4.05.06.07.08.0

1

5

10

20

1

5

10

20

250

300

400

500

600

Xs

XsX l Xs

XlXl

Xl = Long ThrowXs = Short Throw

Total AirFlow Rate

(l/s)

NominalDuct

Width (mm)

NominalDuct

Height (mm)Throw (m) V = 0.4 m/s Static pressure (Pa)

FaceVelocity(m/s)

PIVO

T LI

NE

dBALevel

6 27 28 25 25

FREE JET (VANES AS BELOW)PERFORMANCE AS NOMOGRAM

Diffuser vane setting

2025 25

CEILING JET (VANES AS BELOW)PERFORMANCE THROW = Tnom x 2.5

PRESSURE LOSS = Pa nom x 3 NOISE LEVEL dBA nom + 11dB

Closed

ACD4 ACD3 ACD2 ACD1 ACD1 ACD2 ACD3 ACD4

Diffuser vane setting

t

ACD1 ACD3ACD2 ACD4


Diffusers

Luminaire DiffusersIntroduction

Features

Finishes

Standards

Performance

FinishProject Reference


120

50

390 Ø

157

596 o/a486 i/s recess

600 grid centres

Supply with 2m ofcable pre-wired tofitting

Pivot measurement point(remove light diffuser for access)

6.5mm cable grommet for mainspower and emergency powerpack connection

575 x 575

5

255

Quick fix plenum clips

596

x 59

64 WayPattern

6 24

w - - - 26 33

3 WayPattern

22

w - -

2 WayPattern

w - 27 33

Pressure 4 6

2 3 4

Lw

URF

C W F 2 3 4

0˚

60˚

90˚

60˚

90˚

Photometric Data

30˚30˚


Diffusers

Louvred Face DiffusersIntroduction

DE

diffuser face

Features

Finishes5

75

Nom. + 145

Nom. - 3Nom. + 75

45

Nom. - 6

Nom. + 75

Nom. + 74

Nom.

45 60

Nom. + 70

784.

8

12

Nom. + 38Nom.

Nominal + 2 i/s stack

Nominal - 16 o/s damper

DF-T8 Frame

OBSS damperOperated by screwdriver after

removing core. Suitable for all types

8

DF-T16 Frame

16

OBLL damperLever operation at diffuser face.

Suitable for core 41 only

573 O/A for T20 or 585 O/A special if T10

Duct width

Finish


DFA

Selection Criteria

DF

575

Nom. + 145

Nom. - 3Nom. + 75

45

Nom. - 6

9

34 76

Lw - - - 29 33

Lw 22 26 29 33 37

23

Lw 32 37 39 44

33

422

Lw 33 37 42 44 46 49

43

79 492 964

Lw 37 44 46 49


DiffusersLouvred Face Diffusers

9 67

Lw - - - 22 23

237

Lw 24 27 27 29 29

23 337

Lw 33 33 34 36 33 34 36 37

33 236

Lw 39 39 42

43 236 236 472

Lw 39 42 42 43 44 46 43 43 44 46

9 236 296 339 474

Lw 23 24 23 24 24 26

394 472 629

Lw 29 32 33 33 32 33

23 394 422 492

Lw 37 39 36 37 37

33 473 674 942

Lw 42 44 42 44 42 43

43 394 473

Lw 44 46 47 46 47 46 47 49

Selection Criteria


DiffusersLouvred Face DiffusersSelection Criteria

9

34 76

Lw - - - 23 24 26

Lw - 33

23

Lw 27 34 36 37 39

33

422

Lw 32 36 39 42 43

43

79 492 964

Lw 36 43 46 49

9

34 76

Lw - - 23 24 26

Lw - 32 33

23

Lw 27 34 36 37 39

33

422

Lw 32 36 39 42 43 44

43

79 492 964

Lw 36 43 46 47



9 67

core 22

core 23

Lw - - - - - - 22

237

core 22

core 23

Lw 23 26 27 29 27 29

23 337

core 22

core 23

Lw 29 32 33 34 33 34 34 36

33 236

core 22

core 23

Lw 34 36 37 39 39 39 42

43 236 236 472

core 22

core 23

Lw 42 43 44 42 43 43 46

9 236 296 339 474

core 22

core 23

Lw 23 24 23 24 24 26

394 472 629

core 22

core 23

Lw 29 32 33 33 32 33

23 394 422 492

core 22

core 23

Lw 34 37 39 36 37 37

33 473 674 942

core 22

core 23

Lw 39 42 44 42 44 42 43

43 394 473

core 22

core 23

Lw 44 46 47 46 47 46 47 49

Core 22 Core 23

Selection Criteria

DF - core 23



9

67

Lw - - - - - - - 22

237

Lw 23 26 27 27 29

23

337

Lw 29 32 34 33 34 34 36

33

236

Lw 34 36 37 39 39 39 42

43

236 236 472

Lw 42 43 44 42 43 43 46

9

236 296 339

Lw 22 23 23 24

394

Lw 29 32 32

23

394 422 492

Lw 34 37 36 37 37

33

473 674

Lw 39 43 43 42

43

394 473

Lw 43 44 46 47 46

Core 26 Core 27

Selection Criteria

L

S

L

S

22


Diffusers

9

34 76

Lw - - - - 23 24

Lw - 24 27 32

23

Lw 26 33 34 36 37

33

422

Lw 39 42 43

43

79 492 964

Lw 39 42 43 46 47

9

34 76

Lw - - - - 23 24

Lw - 24 27 29 32

23

Lw 26 33 36 37

33

63 422

Lw 42 43

43

79 492 964

Lw 39 42 44 46 47

LL

S

Louvred Face DiffusersSelection Criteria

aluminium

23


Diffusers

9

67

Lw - - - - - - - - -

237

Lw 24 26 27 26 27 29

23

337

Lw 33 34 32 33 34

33

236

Lw 33 36 36 37 39 36 37 39

43

236 236 472

Lw 37 39 42 43 42 43 44

9

236 296 339 474

Lw - 22 23 24 24

394 472 629

Lw 27 29 29 32

23

394 422 492

Lw 33 34 36 36 37 37 37 39

33

473 674 942

Lw 39 42 42 42 43

43

394 473

Lw 42 43 44 44 46 46 47 47

Core 32 Core 33


L

SS

L

L

S

24



A C D

294

369

Introduction

DTR Features

Finishes

9

34 76

Lw - - - -

Lw - 24 27

23

Lw 26 33 34

33

422

Lw 39

43

79 492

Lw 39 42 43

595

mm

595 mm

D

C

BA

Duct width

Finish



Diffusers

Pressure 9 23 33

Volume

26 39 42

C D E

F G H J K

B

Type B

Pressure 9 23 33

Volume 62 93

- - 27 33

Pressure 9 23 33

Volume

29 33 37

Pressure 9 23 33

Volume

- 26 34

Pressure 9 23 33

Volume

29 34

26



Pressure 9 23 33

Volume 46 93

- - 27

Pressure 9 23 33

Volume 46 62 77 93

- - 34

Pressure 9 23 33

Volume 46 62 77 93

- - 34

Pressure 9 23 33

Volume 23 39 46

- - - 27

Pressure 9 23 33

Volume 342

- 34 37

Pressure 9 23 33

Volume 76

- 26 34

Pressure 9 23 33

Volume 76

- 26 34

Pressure 9 23 33

Volume 76

- - 27 34

Pressure 9 23 33

Volume

34

Pressure 9 23 33

Volume

- 32 36 39

Pressure 9 23 33

Volume

- 32 36 39

Pressure 9 23 33

Volume 76

- 26 29 33 36

Pressure 9 23 33

Volume

- 26 34 36

Pressure 9 23 33

Volume

- 29 33 36

Pressure 9 23 33

Volume

- 29 33 36

Pressure 9 23 33

Volume 42

- - 26 33

Pressure 9 23 33

Volume

- 29 32 36 39

Pressure 9 23 33

Volume

- 27

Pressure 9 23 33

Volume

- 27

Pressure 9 23 33

Volume

- 24 29 32 34

Type E Type J

Type D Type H

Type C Type G

Type F Type K

27


9

67

Lw - - - - - - - - - -

237

Lw - 24 24 26 26 27 27

23

337

Lw 32 33 32 32 33 34

33

236

Lw 33 36 37 36 37 37 39

43

236 236 472

Lw 37 39 42 42 43

9

236 296 339 474

Lw - 23 23 24 24 24

394 472 629

Lw 27 29 29 29

23

394 422 492

Lw 33 34 36 36 37 37

33

473 674 942

Lw 39 42 42 42

43

394 473

Lw 42 43 44 44 44 46 47 47

Core 42


L

L

S S

Diffusers


Diffusers

Louvred Face DiffusersDFA

34 76

Lw - - - -

Pa

Lw - - - -

Pa

Lw - - - -

Pa 32 32 32 32

422

Lw - - - -

Pa 47 47 47 47

79 492

Lw - - -

Pa

34 76

Lw - - - -

Pa

Lw - - - -

Pa 37

Lw - - - -

Pa 47 47 47

422

- -

Lw - - -

Pa 67 67 67

79 492

- - -

Lw - - 22

Pa

34 76

Lw - - - -

Pa

Lw - - - -

Pa 37

Lw - - - -

Pa 47 47 47

422

Lw - - -

Pa 67 67 67

79 492

Lw - 22 23

Pa

Features

diffusionFinishes

Vt

Factor

Factor

Duct width

Finish


Nom. + 70

784.

8

12

Nom. + 38Nom.

29


Diffusers

Introduction

Finishes

Dimension table

367 447CD 247

324 432

LWA 27 32Ps

LWA 27 36 42Ps 7 24

LWA 33 37Ps 7 22 27

PlenumLined


65

DIA.D

65

A (Nominal -3mm)

B (

Nom

inal

-3m

m)

c


Diffusers

Introduction

O

Features

Finishes

Authority

Selection Criteria

r

curves based on Sound Power Level less

B (o/a neck)

C D

E

E

F (opening size)

A

4 way 3 way 2 way 2 way 1 way

Plenum

ORDER EXAMPLE

A C D E F

6 36 296

6 36 446

6 36 496

6 36

4 way

3 way

2 way way

4 way

3 way

2 way way

4 way

3 way

2 way way 4 way 4 way 4 way

34 Ps 9 33 9

Lw - - - - -

Ps 23

Lw - - -

Ps 23 34 7 23

Lw - 23 33 -

Ps 33 9 33 36

Lw - 26

79 Ps 43 43 9 47

Lw 26 32 29

Ps 9 33 26

Lw 43 26

Ps 44

Lw 34 32

Ps 23 7

Lw 33 27 36

Ps 33 26 36

Lw 33 43

Ps 43 9 47

Lw 37 46 44 33

Ps

Lw 37 44

Ps 23

Lw 42 47

Ps 33 36

Lw

Ps 43 47

Lw 49


Diffusers

Aircell Diffusers

Air Volume

4 way

3 way

2 way way

4 way

3 way

2 way way

Ps 2 4

Lw - - - -

Ps

Lw - 24

Ps 22

Lw 27 46 36 33

Ps

Lw 43 43

Ps 44 66 4

Lw - 22

Ps 6 22 6

Lw 46 - 36 -

Ps

Lw 33 43 -

Ps

Lw

Ps 22 29

Lw 36 43 32

Ps

Lw 37

Ps

Lw 43 42

4 way 3 way 2 way 2 way 1 way

Introduction

O

Features

Finishes

Authority

Selection Criteria

r

B (o/a neck)

C D

E

E

F (opening size)

A

Plenum

ORDER EXAMPLE

A C D E F

3 229 296 269

6

32


Diffusers

Aircell DiffusersPerformance

A C D E

- - -

- - -

- - 224

- - 277 299 247

- - 366 449 397

A

B

B

Type 'O' damper

ØE

50

7 7

Do/s stack

C

Type 'P' plenum

50

Ø312

Ø400

R600 neck reducer

Aircell DiffusersInstallationParticular attention has been

Aircell are manufactured from

manufactured from injection

mean that you can use

a diffuser without a

Aircell diffuser

Removable core

W X Y Z

269

Z

Y

X min

WDuct or Plenum

Damper

Diffusers

33


Diffusers

Laminar Flow DiffusersIntroduction

frame

Features

Finishes

Nominal Width

Finish

ORDER EXAMPLE

A

LFF

LFF

Free Area

Optional LD

25

150

ØD o/s

75

Ceiling opening size = W/H -20

ØD

o/s

A75

W x H Overall

W x H Overall

Optional LD

1326

160

ØD o/s

7075A

ØD

o/s

75A

W x H Overall

W x H Overall

ØD

+ 1

35A

ØD

+ 1

25

LFM-TE = Top Entry

LFF-TE = Top Entry

LFM-SE = Side EntryLFM-EE = End Entry

LFF-SE = Side EntryLFF-EE = End Entry

D

Face dischargevelocity (Table 1)

Reduction in airstream section

area increases velocity

Near constant airstream velocity up to 2.5m from

diffuser face(Table 2)

FACE PLATEREMOVAL TOOL

LFM - Flangeless frame

PRE-DRILLED FRAMES FORMODULAR ASSEMBLY

OPTIONAL TOP, END OR SIDE

ENTRY SPIGOTSØ8mm HOLES FOR DROP SUPPORT LINK PLATES

LFF - Flanged frame

OPTIONAL LOUVRE DAMPER

Ø8mm HOLES FOR DROP SUPPORT

34


Diffusers

Laminar Flow Diffusers

Air Flow Rate

72 432

Air Flow Rate

Unit 72 432

Air Flow Rate

Unit 72 432

D

2m

2m

2m

2m

2m

2m

2m

2m

2m

Air Flow Rate

72 432

2 2 4

2 2 4 7

2 2 3 3 4 4

Air Flow Rate

72 432

29 33

32

Selection Criteria

characterised by the tendency to reduce

between the airstream boundary and

airstream velocity is derived from time

Diffuser selection criteria will be

concentrated heat sources or where


Diffusers

Perforated Face DiffusersIntroduction

Features

All aluminium face construction

Finishes

PatternNominal Width

Finish

ORDER EXAMPLE

Free Area

CPD

CPD 297

CPD —

CPD —

CPDE —

CPDE —

CPDE —

CPDE —

W o/aW - 52

H o

/aH

- 5

2

A x B o/snominal duct size

CPD/OBSSH - 52

ØD o/snominal duct size

CPD/LD

Ceiling opening = H - 20

132

72

5

radioradio

Installation

4 Holes 9.5Øfor drop rods

H - 100

W - 100

drop r

od ce

ntresdrop rod centres

Ceiling opening =W-20 x H -20

FLUSH

600 T Bar Centres

LAY-IN / EXPOSED T BAR

300/600/1200 Centres

CONCEALED T BAR

Drop rod fixing by others

36


Diffusers

Perforated Face Diffusers

NominalCPD4 CPD3 CPD2

- -

CPD 4 way 3 way 2 way

X X X X X X X X X X X X X X

Air Flow Rate

m3 324 324 324

23 36 24 24 26

3 4 2 3 4 3 4 6 6 6 6 6

Air Flow Rate

m3 763 763 763 727

67

27 32 33 47 29 33 34 37 34 24

3 6 4 4 6 9 9

Air Flow Rate

m3 324 972

33 37 37 39 43 24 34 33

7 22

Air Flow Rate

m3 - - - - - - - - - - 3636

- - - - - - - - - - 337

- - - - - - - - - - - - - -

- - - - - - - - - - - - - -

- - - - - - - - - - 32 42

- - - - - - - - - -

CPD2 CPDECPD3CPD4yaw3yaw4 Exhaust2 way

Selection Criteria

Radius of diffusion is based on terminal velocities

Static Pressure Loss 7 Pa

37


Diffusers


connections

FeaturesEasy maintenance

Finishes

Nominal Width

Finish

ORDER EXAMPLE

596 SQUARE O/A450 SQUARE FACE OPENING

75

KRCPE LD OPTION2297

KRCPE 450 SQ OBSS OPTION

KRCPE 300 SQ OBSS OPTIONKRCP

Ø297 O/S

450 l/s NECK

6.5

KRCP 4 way throw

3 way throw

side

3 way throw short side

2 way throw throw

m3

Pa 4 4 4 4 4Lw 22 22 22 22 22

Pa 7 7 7 7 7Lw 33 33 33 33 33

PaLw 42 42 42 42 42

Pa 26 26 26 26 26Lw 49 49 49 49 49

KRCP

m3

Pa 6Lw - -Pa 4 22Lw - -Pa 9Lw 23PaLw

Pa 23Lw 46

1 way 2 waycorner

2 wayopposite

3 way 4 way Exhaust

Core Patterns

600 T Bar centres

CONCEALED T BAR

600 T Bar centres

BURGESS TYPE MOUNT

600 T Bar centres

LAY-IN / EXPOSED T BAR

Selection Criteria

Radius of diffusion is based

level is based on diffuser sound

4 way throw



Diffusers


Diffuser Diffuser

Diffuser

With Filter

With FilterFeatures

Short throwFinishes

MWVPD

MWVPD-RF

MWVP-RF

ORDER EXAMPLE

E S øD E

72

92

92

97

99

With Filter

m3

Ps 3 3

Lw - - - - - -

42 Ps 7 24 6

Lw 27 - 29 - 34 - - -

Ps 33 24 9

Lw - - 29 - 22 - -

69 Ps 3 44 39 3

Lw 44 29 - - 32 - - 36 23 - - - -

Ps 7 64 27 9

Lw - 39 - 44 - 32 - - - -

Ps 9 4 29 9

Lw - - 33 23 - 36 - 27 - - -

Ps 32 6 7 44 24 44

Lw 37 - 42 34 24 33 23 - 27 -

Ps 9 44

Lw 32 36 24 29 26 - - 32

Ps 22

Lw 29 33 36 33 - - 33

Ps 24 36

Lw 29 -

E E Filter S

296

296

circumference of a circle of the stated diameter

MWVP-R

Number of Directions

Finish

Selection Criteria


3

39


Diffusers

Introduction

Circular face swirl diffuserSquare face swirl diffuserDuct collar

See table Finishes

Diffuser + Collar Plenum


use data above based on nominal

Colour Finish

ORDER EXAMPLE

SDFC SDFS

Duct mounting collar

Ceilingsupportbrackets

ØD1o/s

65H

ØG

ØA

ØD1o/s

65H

12

Edge detail to suit grid typeas shown below

To suit nominalgrid type & size

To s

uit

nom

inal

grid

typ

e &

siz

e

E *75

C50 *125 WITH QUADRANT

OPERATED FLAPDAMPERS.

20

50

F

ØD2Frame size

483,583, 733

500, 600,

750 Nom Grids

Tegular frame - T8

Tegular frame - T16

Exposed 'T' - E

Frame size 295, 495,

595, 745

300, 500, 600,

750 Nom Grids

12

8

Frame size

483,583, 733

500, 600,

750 Nom Grids

16


Diffusers

for SDFSC E F H

97

247

397

Diameterm3 36 72 324 432

Lw Duct 39

Lw Plenum 27

Ps Duct 47

Ps Plenum

Lw Duct - 29 43

Lw Plenum - 46

Ps Duct

Ps Plenum 26 69

Lw Duct - - 32 37

Lw Plenum - - 27 34 39 43

Ps Duct 4 9 22

Ps Plenum

Lw Duct - - - 26 29 23 36 42

Lw Plenum - - 44

Ps Duct 24 29

Ps Plenum 6 24 36

Lw Duct - - - - 27 43

Lw Plenum - - - 29 32 37 42

Ps Duct 7 9 33

Ps Plenum 6 9

Lw Duct - - - - - 27 33

Lw Plenum - - - - 29 32 37

Ps Duct 3 6 24 29

Ps Plenum 4 6 36

Selection Criteria

Pressure loss data is shown in terms of static

Ducted Diffuser


Diffusers

Perforated Face Swirl DiffusersSDFS-P

Introduction

Perforated face swirl diffuser

Duct collar

Finishes

H

A B

ØD

1

75ØD

70

SDFS-PPerforated supply diffuser Perforated extract diffuser

SDFS-P Perforated supply diffuser with WTP plenum

SDFS-P-E

(for ceiling void return only)

Frame size

Fram

e si

ze

ØD11

0Duct mountingcollar

Removableface-plate

Frame size

Fram

e si

ze

Removableface-plate

38

ØD1


Colour Finish

ORDER EXAMPLE

Exposed 'T' - E

300, 500, 600, 750Nom. Grid

295, 495, 595,745 o/a

27.5

5

Tegular frame - T8 Tegular frame - T16

500, 600, 750Nom. Grid

483, 573, 583, 733

21.5

500, 600, 750Nom. Grid

483, 573, 583, 733

21.5

8 16

FrameSize

FrameSize

FrameSize

42


Diffusers

Perforated Face Swirl DiffusersSDFS-P

A H

247

247

SDFS-P

Diameterm3 72

Lw Duct 36 43

Lw Plenum 36 43

Ps Duct 42 64

Ps Plenum 23

Lw Duct 27 42

Lw Plenum 27 42

Ps Duct 27 44

Ps Plenum 36

Lw Duct 42

Lw Plenum 42

Ps Duct 33

Ps Plenum 43

Lw Duct 26 33

Lw Plenum 26 33

Ps Duct 7 26

Ps Plenum 23 36

Lw Duct 23 29

Lw Plenum 32 43

Ps Duct 6 22

Ps Plenum 26

Lw Duct 26

Lw Plenum 22 33 37 44

Ps Duct 23

Ps Plenum 6 23 39

m3

Pressure loss Pa

w

2 3

2 3 7

6 7 7 9

6 7 7 9

Selection Criteria

Ducted Diffuser

43


Diffusers

Introduction

SDTA

Duct collar

Please note the duct collar is not required when

See tableFinishes

Colour Finish

ORDER EXAMPLE

6587

H

ØD1o/s

12

ØD1o/s

Edge detail to suit grid typeas shown below

SDTA / SDTB SDTA / SDTB

Duct mounting collar

*125 WITH QUADRANT OPERATED FLAPDAMPERS.

E *50

20

C72 50

22

F

ØD2



To s

uit

nom

inal

grid

typ

e &

siz

e

To s

uit

nom

inal

grid

typ

e &

siz

e

ØG


Nominal PlenumWidth

Plenum Plenum Duct collar H

22

343 22

443 22

22

Frame size483, 573, 583, 733

500, 600,

750 Nom Grids

Tegular frame - T8Exposed 'T' - E


595, 745

300, 500, 600,

750 Nom Grids

12 8

Tegular frame - T16

Frame size483, 573, 583, 733

500, 600,

750 Nom Grids

16

44


Diffusers

Introduction

526

526

Nominal Swirl DIA

526

1313

20

Foamgasket

Diameter Grid m3

LWA 27 36 42Ps

LWA 29 43Ps 32

LWA 22 33Ps 23

LWA 26 36

Ps 26

2

LWA 23 29 33 37 42

Ps 9 22 29

Diameter Parameter

ALWA 24

4 9

LWA 23

4 7

ALWA 29

4 9 27

LWA 24

4 6

ALWA 23 36

23

LWA 22

36

ALWA 22 42

4 7 32

LWA 22 23 24 26

4 7 22 29

Selection Criteria

metres and is based on a terminal

Pressure loss data is shown for a

Colour Finish

ORDER EXAMPLE

Duct collar

Finishes


Diffusers

Introduction

adjustable blades

adjustable blades

Features

Finishes

Finish

ORDER EXAMPLE

ØB ceiling cutout

ØA overall

ØC neck

DE

F

Perforated Baffle

H

75

(125 with FDQ option)

FDC, FDQ damperoptions

G i/sØD1 o/s

ØD2 i/s

7563J*

*

Nom D E F G H J*

247 473 247

397 397

497 497

627 627

* Please note the total

46


Diffusers

Ducted Diffuser


SDFCH

Dia

met

er m3 72 432

Ps Duct 3 23 62Ps

Plenum 3 27 47

Lw Duct - - - 27

Lw Plenum - - - 27

Ps Duct 22 33 66Ps

Plenum 26

Lw Duct - - - - 29 34

Lw Plenum - - -

Ps Duct 7 43Ps

Plenum 9 27 43

Lw Duct - - - 27 32 36 39

Lw Plenum - - 39 42

Ps Duct 6 9 27Ps

Plenum 6 47

Lw Duct - - - - - - 37 42

Lw Plenum - - - - - 27 34

Ps DuctPs

Plenum 22 27

Lw Duct - - - 26 32 37

Lw Plenum 26 34 37 42 47

Ps Duct 6 26 34 49Ps

Plenum 9 22 36 44 62

Lw Duct - - - - 26 34 37

Lw Plenum - - 26 34 44 47

Selection Criteria

Ps

47


Diffusers

Vane Swirl DiffusersIntroduction

S

Room adjustable vanesE

Features

is no requirement to identify this on the order

Finishes

Lay-in

Vanes colourRoom adjustable vanesFinish

ORDER EXAMPLE

SDVS SDVC

ØD

ØA

SDVSA-V / SDVSB-V

A x A

200

225

200

B x H ØD

A x A

B x H

51,5

ØA

E +

25

SDVCA-V / SDVCB-V

SDVSA-S / SDVSB-S SDVCA-S / SDVCB-S

B1 x H1

B1 x H1

E

Air discharge - all left / all right

Air discharge - leftAir discharge - right

Air discharge - leftAir discharge - right

Air discharge left Air discharge rightSDVS SDVC

Number of vanes

E

Frame size

483,583, 733

500, 600,

750 Nom Grids

Tegular frame - T8 Tegular frame - T16Exposed 'T' - E


595, 745

300, 500, 600,

750 Nom Grids

12

8

Frame size

483,583, 733

500, 600,

750 Nom Grids

16


Diffusers

Vane Swirl Diffusers

FixingSizes 300 - 600 (inclusive) 1 central screw

Sizes 625 - 825 (inclusive) 4 screws

SDVSB-800-64SDVSB-825-64

795/823

795/

823

595/623

SDVSB-600-40SDVSB-625-40

595/

623

495

SDVSB-500-24

495

395/495595/623

SDVSB-400-16SDVSB-500-16SDVSB-600-16SDVSB-625-16

395/

495

595/

623

295

SDVSB-300-8

295

ø400/ø500ø600/ø625

SDVCA-400-16SDVCA-500-16SDVCA-600-16SDVCA-625-16

SDVCA-500-24

ø500

595/623

SDVSA-600-48SDVSA-625-48

595/

623


795/823

395/495595/623

SDVSA-400-16SDVSA-500-16SDVSA-600-16SDVSA-625-16

395/

495

595/

623

ø600/ø625

SDVCA-600-48SDVCA-625-48

ø300

SDVCA-300-8

295

295

SDVSA-300-8

SDVSA-500-24

495

595


ø800/ø825

595/623

595/

623


ø600/ø625


SDVCB-800-64SDVCB-825-64

ø800/ø825

SDVCB-600-40SDVCB-625-40

ø600/ø625

SDVCB-500-24

ø500

SDVCB-300-8

ø300

SDVCB-400-16SDVCB-500-16SDVCB-600-16SDVCB-625-16

ø400/ø500ø600/ø625

m3

- -24

Ps 6Lw -

Ps

Lw -

Ps

Lw

Ps

Lw 36 32

Ps 24 7Lw 36 -

Ps 9Lw 46 27

Ps

Lw

Ps 62 6Lw 37 27

Ps 26Lw 44 32 -

Ps 7Lw 37 26

Ps 34Lw 34

Ps 22Lw

Ps

Lw 44

Ps 43Lw 49

SDVSA SDVCA

49


Diffusers

Vane Swirl Diffusers

SDVSA SDVCA

m3 - - 24

- - 24

- - 24

Ps 9Lw

Ps 3 4Lw - -

Ps 22 6 3 7Lw 27 - - -

Ps 34 9 4Lw 33 -

Ps 6 2 24Lw 22 -

Ps 3 32 23Lw 42 26 - 24 23

Ps 24 4 42Lw 24 27

Ps 7 66 47Lw 36 - 33

Ps 26 7 33 73 26Lw 42 36 24 42 27

Ps 3 29 27Lw 23 - 26 33

Ps 27 6 23 7 67Lw 36 42 24 42 34

Ps 42 9 36 29 34Lw 42 36 26 42 26 32 27

PsLw 47 36 32 26 46 32

Ps 22 66 22Lw 34 37 42 37 26

Ps 23 73 72 29Lw 34 46

Ps 29 93 36 37Lw 44 33

PsLw 44 37

PsLw 42

Selection Criteria

Pressure loss data is shown in terms of static

Static Pressure loss 4 Pa


Diffusers

Perforated Face Circular DiffusersRWIIntroduction

Features

and isothermal conditions

Finishes

Short throwSelection Criteria

r

Diameter

ORDER EXAMPLE

Nom

D2 overallE K L

Corrections

Z Pressure Noise level

34 - 2

RWI

m3Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia

Ps 7Lw - -

Ps 22Lw 29 - 27

Ps 6Lw 33 26 -

Ps 22 46Lw 33 - 36 -

42 Ps 29 2Lw 33 - - -

Ps 23 9 4Lw 39 29 - 23 - -

69 Ps 33 36 2Lw 34 - 29 - - -

Ps 23 9 3Lw 37 26 - 34 - - -

Ps 37 34 6 2Lw - - -

Ps 24 9 4Lw 29 26 34 - -

Ps 33Lw 33 29 39 27 - -

Ps 22 9Lw 39 33 33 - -

Ps 36Lw 39 -

347 Ps 24Lw 43 34 24

Z

7.5

ØD1ØXØA

RWI

LK

W x H 50

ØD

2Z

E7.

5

ØD1ØXØA

RWI-R + UKRV

W x H 50

ØD

2Z

E7.

5

ØD1ØXØA

RWI + UKDVI


Diffusers

Plain Face Circular DiffusersRWKIntroduction

Features

and isothermal conditions

Finishes


r

Diameter

ORDER EXAMPLE

Nom

D2 overallE K L

Corrections

Z Pressure Noise level

34 - 2

RWK

m3Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia

Ps 6 7Lw - -

Ps 7Lw - - -

Ps 36 27Lw - - -

Ps 39 9Lw 29 - - 26 - -

42 Ps 29 22Lw - 32 - -

Ps 23Lw 36 - - -

69 Ps 36Lw - 26 -

Ps 7Lw 32 - - -

Ps 36Lw 29 - -

Ps 7Lw 34 - 29 26

Ps 26Lw 36 26 33 29 -

Ps 39Lw 33

Ps 24Lw 39 34

347 Ps 32Lw 37

Z

7.5

ØD1Ø XØ ARWK

LK

W x H 50

ØD

2Z

E7.

5

ØD1ØXØA

RWK + UKDVI

W x H 50

ØD

2Z

E7.

5

ØD1ØXØA

RWK-R + UKRV


Diffusers

Plain Face Adjustable Circular DiffusersRWVIntroduction

Features

Finishes


rNoise level is based on diffuser sound

Diameter

ORDER EXAMPLE

D2 overall E K L

RWV Vertical

m3Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia

Ps 6 4Lw - - -

Ps 44Lw - -

Ps 7Lw 26 - - - -

Ps 4 26 9Lw 33 - - 37 27 - 29 -

42 Ps 42 6 24 33 4Lw 37 - - - -

Ps 42 23 9Lw 32 - - 37 27 - -

69 Ps 32 39 7Lw - - - -

Ps 23 46 22Lw - - 36 - 42 27 -

Ps 39 33Lw 27 - 33 27 39 26 -

Ps 24 24 6Lw - 39 32 24 32 - -

Ps 34 26Lw - 37 27 37 33 -

Ps 26Lw 39 32 39

Ps 47 96Lw 39 37

346 PsLw

7.5

ØD1ØXØA

RWV

LK

Horizontal Jet(Lowered Face Plate)

Vertical Jet(Raised Face Plate)

W x H 50

ØD

2

E7.

5

ØD1ØXØA

RWV + UKDVIW x H 50

ØD

2

E7.

5

ØD1ØXØA

RWV-R + UKRV


Diffusers

Small Format Circular DiffusersIntroduction

Small format circular diffuser

Features

Robust steel construction

Finishes

Selection Criteria

tables

Projection — downward throw to a terminal velocity vt

Finish

ORDER EXAMPLE

Diffuser Diameter

DDia

m3

Lw - - 23 39Ps 2 9 37

Dia

m3 22763 94

Lw - 26 36Ps 2 9 37

Dia

m3 763

Lw - 23 34 44Ps 2 9 37

Dia

m3 -477 636 -

-Lw - 26 -Ps 4 72 -

Dia

m3

Lw - 22 32Ps 4 33

Dia

m3 22763 94

Lw - 24 36Ps 4

Dia

m3 763

Lw - 27 39Ps

Dia

m3

477 636

Lw 32Ps 32

Air Volume

Dia

m3

Lw - 23Ps 3 23

Dia

m3 22763 94

Lw - 46Ps 4 76

Dia

m3 763 --

Lw - 22 37 47 -Ps 6 23 49 -

Dia

m3 - -477 - -

Lw 32 47 - -Ps 74 - -

ØB

Diffuser O/A size

Ceiling cut out

Horizontal diffusion

face

ceili

ngD

uct

to

57 89

5

ØC

D

Vertical Projection

Duct / Diffuser size

57 89

5

ØA

face

ceili

ngD

uct

to

Min

2 x

Dia

.

- Equalisation at stub duct

with volume control at diffuser

LD - Standard

Accessories


Diffusers

WRIntroduction

Features

Easily removable central core assembly

Core adjustment feature

Finishes

Installation

Selection Criteria

Pss

Ps s

t

Finish

ORDER EXAMPLE

WR

6

m3 263 39273

Lw 24 32 39 44Ps 24 37 72

m3 677 922224

Lw 29Ps 33 47 64

m3

Lw 37 43Ps 27 39

m3 2632292 366

Lw 39Ps 37

m3

Lw 33 39 49Ps 29 39

m3 2362 4723

Lw 33 46 62Ps 23 32 42

m3 3226

Lw 66Ps 7 23 46

24

m3 7362

Lw 46 67Ps

Projection Factor

t

Correction Factor

A C D E F G H J

6

64 74

96

6

762 6

24 246

273

24 273

CBA

DUCT

REMOVABLE CORE

A (Nominal Dia)

DH

E

FJ

C (Overall)

BG (OPENING SIZE)

Size 6 8 10 12 151821 24

23 4 5 10 20 30

4

5

10

V

Nec

k ve

loci

ty (

m/s

)n

Projection (m)

Example

Vertical Projection - Cone setting A


Diffusers

Aircell Polymer Floor DiffusersIntroduction

Features

Finishes

ORDER EXAMPLE

Ø299 O/A

Ø200Ø211 cutoutØ225 O/A

23

Min

. Ti

le50

Max.

Til

e

129

4

WFORT WFOVT WFOIT

Ø230 O/AØ225

Ø215 slab hole

Ø200

150

4

WFORS

WFORP WFOVP

Ø 225 O/A

Ø 211 cutoutØ 200

115

ctr

of

spi

got

23 M

in t

o 50

Max

Tile

Thi

ckne

ss

4.5

2020

1 O

/S

Ple

num

Dim

Ø190

Ø201 hole

20

30 m

in

WFORD

AA

252

250 O/A Plenum Dim

Ø 1

47

Ø 299 O/S Collar Dim

HORIZONTAL DIFFUSION

0.1

0.2

0.3

0.4

0.5

AIR

VEL

OCIT

Y (m

/s)

5 10 15 20 25 30 40 50AIR FLOW RATE (l/s)

Tr = Ts(-3˚C)

Tr = Ts(-6˚C)

0.5m

0.75

m1.

0m 1.25

m

1.5m

1.75

m

DATA SHOWN IS VALID FORTEMPERATURE CONDITIONS RANGING FROM ISOTHERMAL TO 6°C COOLING

Example

I

R

V

D

P

S


Diffusers

Aircell Polymer Floor Diffusers

0.1

0.2

0.3

0.4

0.5

0.6

0.70.80.91.0

AIR

VEL

OCIT

Y (m

/s)

01 040302515AIR FLOW RATE (l/s)

0.5m

1.0m

0.75

m1.

25m

1.5m

1.75

m

VERTICAL DIFFUSION AT 3°C COOLING VERTICAL DIFFUSION AT 6°C COOLING

0.1

0.2

0.3

0.4

0.5

0.6

0.70.80.91.0

AIR

VEL

OCIT

Y (m

/s)

01 040302515

0.5m

0.75

m1.

0m

1.25

m

1.75

m

AIR FLOW RATE (l/s)

27 -

7 29 64 - -

4 7 26

w24 29 34

26 39 -

23 - -

- - 29 33 37

Pressure Loss Data

vertically from the

2 4 7 26

6

Acoustic data

w- - - - 23 27

23 - -

VERTICAL DIFFUSION AT 3°C COOLING

0.1

0.2

0.3

0.4

0.5

0.6

0.70.80.91.0

AIR

VEL

OCIT

Y (m

/s)

10 05040302515

1.5m

0.5m

0.75

m

1.0m

1.25

m

1.75

m

Example

AIR FLOW RATE (l/s)


0.1

0.2

0.3

0.4

0.5

0.6

0.70.80.91.0

AIR

VEL

OCIT

Y (m

/s)

01 05040302515

0.5m

0.75

m

1.0m

1.25

m1.

75m

AIR FLOW RATE (l/s)


DiffusersAircell Polymer Floor Diffusers

Aircell Polymer Floor DiffusersInstallation

vertically from the

Pressure Loss Data

4 7 226 26 34 42

loss data is based on a

Acoustic data

w

- -22 29

All acoustic data is based

AIR FLOW RATE (l/s)


0.1

0.2

0.3

0.4

0.5

0.6

0.70.80.91.0

AIR

VEL

OCIT

Y (m

/s)

10 05040302515

0.3m

1.2m

0.6m

0.9mExample

AIR FLOW RATE (l/s)


0.1

0.2

0.3

0.4

0.5

0.6

0.70.80.91.0

AIR

VEL

OCIT

Y (m

/s)

01 05040302515

0.3m

0.6m

0.9m

1.2m

Ø201

Ø190

>30m

m

20.5

Ø211

WFO * T

WFO * P

WFO * S

WFO * D

23

Min

. T

ile50

Max

. T

ile


Diffusers

Drum Jet DiffusersWDJIntroduction

Drum Jet Diffuser

FeaturesFully adjustable drum

Finishes

Satin Anodised Aluminium

Low resistant friction on drumEase of adjustment

Number

ORDER EXAMPLE

Factor

No A W H C D E

36

376 337 36

36

642 36

63

667 63

794 63

63

WDJ Air Volumem3

Ps Lw 23 34

2 22Ps Lw 39

26Ps 24 77Lw 26 33

9 36Ps Lw 27 34

4 34Ps 22Lw 24 29

3 37Ps 26Lw 22 32 37

4Ps Lw 29 39 37

22Ps Lw 27 33 37 39

A

75 BladePitch

B14 W

Duct Width

HD

uct

Hei

ght

Adjustable Vanes

Brush Strip Seal

D6

C

30°

30°

WDJ

E

AdaptorFrame

WDJ + OBSS

Selection Criteria


Diffusers

Hi-Flo Jet DiffusersIntroduction

which allows the air jet to be adjusted for both

Features

Easy to install and adjust

direction

Finishes

Selection Criteria

When diffusers are mounted on a common

the jet velocity has retarded to a terminal

Ps

RWH RWH-P

D E F G

247 92 22

34 34

377 47

447

RWH Diffuser setting

Screw fixing through plate to ceiling or wall

F15G

RWH assemblyDiffuser setting

RWH assemblyJet setting

D30 E

Screw or rivetto ducting

ØB D

uct

1.5 - 15can be increasedwith longer screw

Clamp fixingto panel

ØA

ØC C

ut o

ut

ØB D

uct

Ducting(By others)

Ceiling or wall panel

RWH-P assembly RWH-P assembly

RWH

RWH-P

Air Volumem3

Dia

Jetm

Lw 23 29 37 43 49Ps

Diffuserm

Lw 36 44Ps

Dia

Jetm

Lw 22 27 46Ps 6

Diffuserm

Lw 29 37 43Ps 6

Dia

Jetm

Lw 24 29 44 49Ps 4

Diffuserm

Lw 36 44 62Ps 4

Dia

Jetm

Lw 26 33 46Ps 3 7

Diffuserm

Lw 46 62Ps 3 7

Finish

ORDER EXAMPLE


Diffusers

A

299 299

349 349

399 399

499 499

A C

299 299

349 349

399 399

499 499

A C

299 299

349 349

399 399

499 499

A C

299 299

349 349

399 399

499 499

Plenums

2- Element

3- Element

4- Element

Hi-Flo Jet DiffusersFlo Jet Diffusers

2K 4K

+3 +7

+2 +4 +7 +2

-3 +3 +6

+3 +4 +7 +6

Factor

2 3 4

+3 +6

Jet Diffuser

Pressure Loss Factor

Full details of standard

connections

available to suit non-

=C C

=

ØD

=B2 O/S

C

C

A O

/S

=B1 O/S

=

=

ØD

1 Element

2 Elements

3 Elements

4 Elements

C

A O

/S

15 O/S

15 O/S

15 O/S

15 O/S

= CB3 O/S

A O

/S

ØD

A O

/S

B4 O/S=

ØD


Diffusers

Introduction

Features

Low noise levels

Finishes

Selection Criteria

w

Dimensions J

2 79

64

72

462

Dimensions

Finish

ORDER EXAMPLE

Dimensions

ØA3

ØA2

ØA1

ØA4

1BJ

FlowRate

PressureLoss

Lw

m Pa m m m

26 27 442 6 -

723 4

3437 -

23 --

46 24 -32 3 - -

--

33 -- -

7 -76 3 -

4 - -23 - -

--

6 - -64 4 -

-24 - -

- -

62


Diffusers

Subframe

236

29 33

VC

249S 74 97 74 97 - - - - -

94H 47 49 63 47 49 63 47 47 47 47

ORDER EXAMPLE

Air Volumem3 36 72 432

Ps 7 26Lw - 22 34

-Ps - 27

Lw - - 37

Ps 9 37Lw - - 26

Ps 44 72Lw - - - 37

Ps 24 36 44Lw - - - 37

Air Volumem3 36 72 432

Ps 4Lw - -Ps 9Lw - -Ps 6 22 32 47Lw - - - 27Ps 7 29 37Lw - - - 22

VCAir Volume

m3 36 72

Ps 39Lw -Ps 34 62

Lw - 22

Lw - - - 22Ps 32

Lw - - - 24 34

ØA1

ØB1

H1Subframe

ØD

ØB

ØS ØD

ØB

ØS

H + C H

Supply Valve VA/F Exhaust Valve VB/F Exhaust Valve VCC - Core adjustment

+ C

ØD

ØB

H + C

Introduction

inner coreInstallation

Finishes

Selection Criteriat

Ps

63


Diffusers

Introduction

Installation

FinishesWhite - standardAll others subject to minimum order quantity

Ps

Selection Criteria

installations and is based on isothermal conditions to a terminal

Installation Collar Colour

ORDER EXAMPLE

L2

97

Air Volumem3 36 72

Ps 2 4Lw - - -

Ps 24 33 43Lw - - 37

Air Volumem3 36 72

Ps 3Lw - - -Ps 43Lw - 37 43

Air Volumem3 43

33

3642 43

27 32 37

ØD

20

L2

MAX42

15

ØA

L1

Max TileThickness

Installation collarsuitable for wallor ceiling mounting

Adjustable tabs tosuit installationmethod

Reversible airflow regulator (AR) suitable for supplyor extract

Ø184

Perforated snap fit fascia with removable deflection pad and direction baffle

34

1. FRAME/FASCIA2. DEFLECTION PAD3. INSTALLATION COLLAR4. OPTIONAL FLOW REGULATOR

11

3

FIT FACIA WITH BAFFLE BELOW

1

2

REMOVE DIRECTIONBAFFLE FOR FULLRADIAL AIR PATTERN

4(SUPPLY)

4

1

(EXTRACT)

WALL MOUNTING

300

MAX

CEILING MOUNTING

64


Grille or Nominal to to

Nominal

Nominal to

+ 7 - 7

+ 39 - 39

+ 4 - 4

+ 26 - 26

+ 39 - 39

DSR

DSRX

AFG

SG2

SG3

Diffuser or Nominal

to to Nominal

Nominal to

Nominal

- 39

+ 36 - 36

Nominal - 7

DSL - ENDS + 26 - 26

FCD - ENDS

+ 36 - 36

DE + 74 - 74

DFA

Louvre or

Nominal to to

Nominal

Nominal to

- 6 + 6

- 6 + 6

SL - EF

SL - RF - 6 + 6

Waterloo Tel: +44 (0)1622 711500

Waterloo Tel: +44 (0)1622 711500

GRILLES

DIFFUSERS

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