diffusers total
TRANSCRIPT
DiffusersLinear DiffusersSquare DiffusersLuminaire Diffusers Swirl DiffusersCircular DiffusersJet DiffusersAir Valves
Waterloo 2.0
September 2005
Waterloo
Waterloo 2.0 2 Tel: +44 (0) 1622 711511
Waterloo
Waterloo Introduction
Waterloo manufactures its range of products in England and Holland. The photograph shows the new factorybuilt for Waterloo in 2003.
Symbols UsedT Maximum Throw 50mm from the ceiling (for air velocity of 0.1m/s) in isothermal conditions (unless otherwise stated)[m]To Maximum Throw (for air velocity of 0.15 m/s) in occupied zone in isothermal conditions (unless otherwise stated) [m]vt Terminal Velocity [m/s]v Air Velocity 25 mm from the grille face [m/s]Lp NR level is Peak Level on NR curves based on SWL ref 10-12 W less 8dB Room Absorbtion [dB]Lw Uncorrected sound level [dB]qv Air Volume [l/s] or [m3/h]Ps Static Pressure [Pa]W Width [mm]H Height [mm]
Diffusers
A complete range of products designed to be installed in various ceiling systems. Most diffusers are made fromaluminium, and can be ordered with or without plenum chambers for easy connection to duct work. Diffuserscan be ordered in customer specified (PPM/G) colours; standard colour is PPM 9010 (20% gloss white).
This range is complemented by the Aircell range of polymer Grilles and Diffusers.
Our equipment is suitable for dry, filtered air conditioning systems. Should this not be the casethen a suitable maintenance regime should be in operation that reflects the site conditions.
Waterloo 2.0 3 Tel: +44 (0) 1622 711511
Waterloo
Linear DiffusersCS-F, CS-P, CS-S&E, CS-WR Linear Slot Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4KCS-F, KCS-L Linear Slot Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8STKCS, STCS Linear Slot Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10DSL, DSL-D Linear Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12FCD1, FCD2 Linear Fan Coil Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Plenum Chambers Linear Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Square DiffusersDF, DE, DFA Louvred Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18M300, M450, M500, M600, M625 Aircell Polymer Louvre Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . .362300, 2600 Aircell Polymer Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38LFF, LFM Laminar Flow Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42CPD, CPDE Perforated Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46KRCP, KRCPE Perforated Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50MWVP, MWVPD Perforated Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52WPD, MWPD Perforated Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54WID Perforated Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Luminaire DiffusersLUMDF Luminaire Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Swirl DiffusersSDFC, SDFS Circular/Square Fixed Blade Swirl Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60SDFS-P Perforated Face Fixed Blade Swirl Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62SDFCH, SDICH, SDACH High Capacity Circular Swirl Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64SDVS, SDVC Vane Swirl Circular / Square Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Circular DiffusersRWI, RWI-R Circular Perforated Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70RWK, RWK-R Circular Plain Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72RWV, RWV-R Circular Plain Face Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74MC Small Format Circular Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76WR Large Format Circular Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78WFO, WFOV Aircell Polymer Floor Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Jet DiffusersWDJ Drum Jet Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84VS3 Supply Air Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86RWH, RWH-P Hi-Flo Jet Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Supply and Exhaust ValvesVA, VB, VC Steel Supply and Exhaust Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92RPVB Aircell Polymer Supply and Exhaust Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Contents
Linear Slot DiffusersCS-F CS-P CS-S&E CS-WRIntroductionThe Waterloo small format continuous slot diffuser seriesCS has for many years set the industry standard in termsof highest aerodynamic and acoustic performance. TheCS range is ideally suited to variable volume applicationsdue to its excellent low flow rate air diffusioncharacteristics and high air handling capacity. The novelair pattern control element design allows any air diffusionto vertical projection, without any change in the facialappearance.CS diffusers are suitable for all commercial and industrialprojects requiring single or multislot diffusers for ceilings,bulkheads or sidewall supply and exhaust.Diffusers are manufactured from aluminium alloyextrusions fixed or clipped to cross stays allowing easyremoval of internal vanes and pattern control elements.
Product DescriptionCS-F Wide flanged general purposeCS-P Narrow flange for flush / recess mountingCS-S&E Supply and Exhaust (or dual supply) system
diffuserCS-WR Plank Replacement UnitEnds End capsED Equalising Deflector
Features• High air handling capacity
• Wide dynamic range for perfect VAV systems
• Strong coanda effects for good low flow performance
• Fully adjustable air pattern from horizontal to vertical
• Hidden flow control vanes for consistent facial
appearance
• Continuous joint detail for ceiling integrations
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Weights0.8N + 0.7 kg/mN = number of slots
SizesStandard from 1 to 8 slots wide 1500mm long(excluding ends). Continuous diffuser lengths are supplied in sections forbutt jointing on site. (Alignment plates supplied)
Order Example
CS-F/3000/S1/PPM9010/ENDSTypeLengthNº of slotsFinishEnd caps
Type Slots 1 2 3 4 5 6 7 8
CS-FC 76 114 152 190 228 266 304 343E 57 95 133 171 209 247 285 324F 40 79 117 155 193 231 269 307
CS-PC 56 95 133 171 209 247 285 323
E Flush 50 89 127 165 203 241 279 317E Recess 57 96 134 172 210 248 286 324
F 40 79 117 155 193 231 269 307
CS-S & E-FC - 114 152 190 228 266 304 343E - 95 133 171 209 247 285 324
Nº of Slots (Supply or 1 2 3 4 5 6 7Extract) F 40 79 117 155 193 231 269
PB PLS D G
1 slot 34 462 slot 72 843 slot 110 1224 slot 148 1605 slot 186 1986 slot 225 2367 slot 263 2748 slot 301 312
Waterloo
Waterloo 2.0 4 Tel: +44 (0) 1622 711511
2828 18
EF
5
CS-FC
Riveted Plenum Hemmed Plenum
45 -
60
G
1818 18
EF
1.5
CS-PC
81.5
Extract = F - 2
CS-S&E-F
Supply = F
Frame alignment strip
D
CS-F + PLS CS-F + PB
Waterloo
Waterloo 2.0 5 Tel: +44 (0) 1622 711511
Linear Slot DiffusersCS-F CS-P CS-S&E CS-WR
Special ProductsMore information about these products available on request
Waterloo 2.0 6 Tel: +44 (0) 1622 711511
WaterlooLinear Slot DiffusersCS-F CS-P CS-S&E
Curved CS unit
750
X
X
StandardDiffusers are supplied with flow controlvanes in lengths up to 750mm (to suitdiffuser length).
SpecialTo provide finer control of the airpattern, flow control vanes may be suppliedin any specified length.
See page 16 for plenum reference
AIR FLOW RATEl/s per m length
MAXIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.10 m/s (Vt = 0.25 m/s)
MEDIUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.15 m/s (Vt = 0.5 m/s)
VERTICAL PROJECTIONVt = 0.25 M/S
NR LEVELHorizontal diffusion
& exhaust air
Horizontaldiffusion Exhaust
300
400
500
600
700
25
20
12
12 55
50
50
25
12.5
2.5
10075
25
12.5
6.25
1.25
50
1
2
3
4
8
7
6
5
37.54540
3530
25
20
10
87
6
5
4
3
2
1
12
10
87
6
5
4
3
2
1
15
10
9
8
7
6
5
4
3
20
15
10
9
8
7
6
5
4
3
2
200
100
90
80
70
60
50
40
30
20
PRESSURE DROP (Pa)
Nº OF SLOTS
MINIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.25 m/s (Vt = 0.85 m/s)
Selection Example
(1 Way Throw)
Selection Example
(2 Way Throw)
Linear Slot DiffusersCS-F CS-P CS-S&E
Selection Example CS2/1800Total air flow rate 180 I/s = 100 l/s/m
1 Way ThrowMinimum throw 2.8m (3.5 x 0.8 factor)Maximum throw 7.2m (9.0 x 0.8 factor)Pressure drop 25PaNoise level NR29 (NC32 - 3db length correction)
2 Way ThrowMinimum throw 2.0m (2.5 x 0.8 factor)Maximum throw 5.2m (6.5 x 0.8 factor)Pressure drop 25PaNoise level NR25 (NR28 - 3db length correction)
Selection CriteriaCeiling height 2.75m, increase throw by1m for each 1m increase in ceiling heightHorizontal diffusion is based on a coolingdifferential of 11°C Vertical projection is based on a heatingdifferential of 11°CNR is sound pressure level/Noise CriteriaCurve & based on a room absorption of8dB.Vr = mean room air velocity (m/s)Vt = terminal velocity of supply air jet (m/s)
Performance Nomogram
Length CorrectionsActive Length (m) 0.5 1.25 2.0 2.5 3.0NR Reduction -8 -5 -3 -2 0Throw multiplier 0.45 0.65 0.8 0.9 1.0
Waterloo
Waterloo 2.0 7 Tel: +44 (0) 1622 711511
Linear Slot DiffusersKCS-F KCS-L
IntroductionThe Waterloo series KCS is a standard alternativeto the infinitely variable CS linear slot diffuser.Available in 1 to 4 slots it comes complete with ablack polymer pattern control element and willprovide either a one or two way horizontaldistribution. Each unit can be supplied with eitherconventional end caps or polymer flat inserts wherea lay-in grid is used.The KCS is suitable for VAV systems or conventionalfan coil systems and can be supplied with aplenum box if required. Lengths are available up to1800mm long in one piece.
Product DescriptionKCS-F Flanged linear slot diffuserKCS-L Recessed frame linear slot diffuserFL End caps (For KCS-F)KPL Polymer end caps (Suitable for KCS-F and
KCS-L)
Features• VAV system compatibility
• One or two way directional throw
• Other frame styles available
• Black pattern control elements
FinishesPPM9010 (RAL 9010 20% Gloss White)Black polymer bladesOther frame colours and anodised finish availableon request
Advantages• Two way variable throw characteristics• Easily adjustable air pattern• Lay-in grid compatible
Weights0.8N + 0.7 kg/mN = number of slots
SizesStandard from 1 to 4 slots wide 1800mm long(excluding ends). Continuous diffuser lengths are supplied in sectionsfor butt jointing on site. (Alignment plates supplied)
Order Example
KCS-2F/1800/PPM9010/FLTypeNº of slotsOuter frame typeLengthFinishEnd caps
KCS C EKCS-1F 75 55KCS-2F 113 93KCS-3F 151 131KCS-4F 189 169
KCS-1L 46 48KCS-2L 84 86KCS-3L 122 124KCS-4L 160 162
Plenum Widths DKCS-1F 46KCS-2F 84KCS-3F 122KCS-4F 160
KCS-1L 46KCS-2L 84KCS-3L 122KCS-4L 160
Waterloo 2.0 8 Tel: +44 (0) 1622 711511
Waterloo
Linear Slot DiffusersKCS-F KCS-L
Waterloo 2.0 9 Tel: +44 (0) 1622 711511
Selection Example KCS-2F/1800Total air flow rate 180 I/sAir flow rate per metre = 100 l/s/mMinimum throw 2.8m (3.5 x 0.8 factor)Maximum throw 7.2m (9.0 x 0.8 factor)Pressure drop 25PaNoise level NC29 (NC32 - 3db lengthcorrection)
Selection CriteriaCeiling height 2.75mTemperature differential -11°C NC is sound pressure level/Noise CriteriaCurve & based on a room absorption of8dB.Vr = mean room air velocity (m/s)Vt = terminal velocity of supply air jet (m/s)
Please note that for heatingapplications the KCS diffusers arelimited to a maximum supply airtemperature of 50°C
Performance Nomogram
AIR FLOW RATEl/s per m length
MAXIMUMVr = 0.10 m/s
(Vt = 0.25 m/s)
RADIUS OF DIFFUSIONMINIMUM
Vr = 0.25 m/s(Vt = 0.85 m/s)
NR LEVELHorizontal diffusion
& exhaust air
HorizontalDiffusion Exhaust
300
25
20
12
55
50
50
20
30
10 5
10
15
25
3850
5
10075
1
2
3
4
4540
3530
25
20
10
87
6
5
4
3
2
1
15
10
9
8
7
6
5
4
3
200
100
90
80
70
60
50
40
30
20
PRESSURE DROP (Pa)
Nº OF SLOTS
Waterloo
Length CorrectionsActive Length (m) 0.5 1.25 2.0 2.5 3.0+
NR Adjustment -8 -5 -3 -2 0
Throw Multiplier 0.45 0.65 0.8 0.9 1.0
Waterloo 2.0 10 Tel: +44 (0) 1622 711511
Linear Slot DiffusersSTKCS STCS
IntroductionThe Waterloo series STKCS / STCS is a one ortwo slot diffuser with a front face plate designedto be mounted into 600mm and 1200mmmodular T-Bar ceiling systems. The front faceplate on both the one and two slot are the samesize to provide a uniform facial appearance. Theunits are supplied with their own plenum boxesas standard.
Product DescriptionSTKCS-1 Single slot diffuser - one way throw
with a black polymer patterncontrol element
STKCSI-1 Single slot diffuser - one way throw with 6mm thermal/acoustic lining in the plenum
STCS-2 Two slot diffuser - two way throwwith a black aluminium patterncontrol element
STCSI-2 Two slot diffuser - two way throw with 6mm thermal/acoustic liningin the plenum
Features• Common faceplate width for one and two slot
• Integrated plenum unit
• Sizes to suit 600, 1200 & 1500mm T-Bar
ceiling systems
• High induction characteristics
• VAV compatible
• Modular design
FinishesFront face plate PPM9010 - 20% Gloss WhiteOther colours available on request
WeightsSTCS-1 4.0 kg/m
STKCS-1 3.7 kg/m
STCS-2 5.7 kg/m
STKCS-2 5.0 kg/m
SizesSee tables
Order Example
STKCS-2/1195/PPM9010/980/125/1TypeNo. of slotsDiffuser lengthFinishPlenum lengthPlenum spigot diameterNº of spigots
Waterloo
STKCS-2Nom. L E ØD
420 - 700 275 1 x 125
840 - 1260 275 1 x 160
1400 - 1540 275 2 x 125
1680 - 1820 275 2 x 160
STKCS-1Nom. L E ØD
420 - 700 240 1 x 100
840 - 1260 240 1 x 125
1400 - 1540 240 2 x 100
1680 - 1820 240 2 x 125
STCS-2
275
140 50
øD10
0
95100
STKCSI-1
240
100 50
øD10
0
95100
Nom. L
Nom. L + 5
Nom. W - 5
95
ST(K)CS-1
Waterloo 2.0 11 Tel: +44 (0) 1622 711511
Linear Slot DiffusersSTKCS STCS
Performance Table
Selection ExampleSTKCS-1/1400
Air Volume 50 I/sThrow 4.0 mPressure Drop 23 PaNoise Level NR 20
Selection Criteria
Ceiling Height 2.7mTemperature Differential -11KAverage room velocity Vr 0.15m/sNR is sound pressure level/Noise Criteria Curvebased on a room absorption of 8dB
All selections include the plenum
STKCS Plenum length (mm)
m3/h l/sW 560 700 840 980 1120 1260 1400 1540
Slots 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
54 15T 2.8 2.3 2.0 1.7 1.5 1.3 1.2 1.1Ps 14 9 7 5 4 3 2 1Lp - - - - - - - -
72 20T 3.4 2.8 2.5 2.2 2.0 1.8 1.6Ps 18 14 10 8 7 6 5Lp - - - - - - -
108 30T 3.9 3.8 3.2 2.8 2.6 2.3 2.1Ps 11 21 17 14 12 9 7Lp - 20 - - - - -
126 35T 5.2 3.9 4.1 3.6 3.2 2.8 2.6Ps 18 11 23 18 16 14 11Lp 22 - 20 - - - -
144 40T 4.9 3.9 3.8 3.5 3.1Ps 16 11 21 17 15Lp 21 - - - -
180 50T 5.9 5.3 3.9 4.0 3.6Ps 24 14 11 23 18Lp 25 20 - 20 -
198 55T 5.6 4.6 3.9 3.4Ps 21 13 11 10Lp 24 20 - -
126 65T 5.4 4.6 3.9 3.5Ps 19 13 11 10Lp 23 20 - -
252 70T 5.2 4.5 3.9 3.5Ps 18 13 11 10Lp 22 20 - -
306 85T 5.6 4.9 4.4Ps 21 16 13Lp 24 21 20
360 100T 5.3Ps 18Lp 22
For exhaust applications, please multiply the above pressure drops (Ps) by 1.2,and add 3dB to the noise levels.
Waterloo
Waterloo 2.0 12 Tel: +44 (0) 1622 711511
Linear DiffusersDSL DSL-D
IntroductionThe Waterloo large format linear diffusers seriesDSL are ideal for most commercial supply andexhaust systems and integrate well with ceiling tileand lighting layouts. The clear design provides anextremely low air resistance characteristic and thismakes the diffuser ideal for any fan coil orinduction system which is pressure sensitive. Singleor multislot diffusers are available with fixed 1 or 2way air patterns; multislot 2 way diffusers may beadjusted to suit site conditions by changing vanes.The diffusers are constructed from aluminium alloyextrusions fixed or clipped to cross stays. Internalvanes are removable for installation, access orcleaning.
Product DescriptionDSL Large format one way dischargeDSL-D Large format two way dischargeEnds End capsOBSS Allen key operated opposed
blade damperED Equalising deflector
Features• Ultra low pressure loss characteristics suited to
fan coil and induction supply systems• Single or multislot to suit most air handling
requirements• Clean design for practical integration with
lighting or ceiling systems• Fixed 1 or 2 way pattern to prevent unwanted
adjustment of air diffusion
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Weights0.4N + 0.6 kg/mN = number of slots
SizesFrom 1 to 8 slots wide1500mm long (excluding ends) Continuous diffuser lengths are supplied in sectionsfor butt jointing on site (Alignment plates supplied)
*Please specify number of slots in each direction
Order Example
DSL/3000/S1/PPM9010/ENDSTypeLengthNº of slotsFinishEnd caps
Waterloo
Type A B CDSL-1 46 89 70
DSL-2 84 127 108
DSL-3 122 165 146
DSL-4 160 203 185
DSL-5 198 241 222
DSL-6 237 279 260
DSL-7 275 317 298
DSL-8 313 355 336
Type A B CDSL-D11 84 154 137
DSL-D12 122 192 175
DSL-D22 160 230 213
DSL-D23 198 268 251
DSL-D33 237 306 289
DSL-D34 275 345 327
DSL-D44 313 382 365
35 -
60
DSL
25CB
A
DSL-D
25
BC
67
A
DSL-D + OBSS + Plenum
Waterloo 2.0 13 Tel: +44 (0) 1622 711511
Linear DiffusersDSL DSL-D
Selection ExampleDSL/2000/S4Total air flow rate 400 I/sAir flow rate per metre = 200 l/s/mMinimum throw 6.8m (8.5 x 0.8 factor)Maximum throw 12m (15.0 x 0.8 factor)Pressure drop 13PaNoise level NR22 (NR25 - 3db lengthcorrection)
Selection CriteriaFrom a ceiling height of 3.0m, increase throwby 300mm for each 300mm increase in ceilingheight.Horizontal diffusion is based on a coolingdifferential of 11°C NR is sound pressure level based on a roomabsorption of 8dB.Vr = mean room air velocity (m/s)Vt = terminal velocity of supply air jet (m/s)
PivotLine
AIR FLOW RATEl/s per m length
NC LEVELHorizontal diffusion & exhaust air
300
400
500
600
700
20
10
5
1
50
1
2
3
4
8
7
6
5
30
40
50
2010
20
30
5
3
2
5
10
20
200
100
90
80
70
60
50
40
30
20
PRESSURE DROP (Pa)
Nº OF SLOTS
MAXIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.10 m/s (Vt = 0.25 m/s)
MINIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.25 m/s (Vt = 0.85 m/s)
Performance Nomogram
Waterloo
DSL Exhaust Corrections
Pressure Loss Multiply x 2
Noise Level +5 dB
Equalizing Deflector Corrections
Diffuser Length (m) 0.5 0.75 1.0 1.5
Throw Multiplier usingED blades 0.33 0.42 0.48 0.54
Length Corrections
Active Length (m) 0.5 1.25 2.0 2.5 3.0NR Correction -8 -5 -3 -2 0Throw Multiplier 0.45 0.65 0.8 0.9 1.0
Waterloo 2.0 14 Tel: +44 (0) 1622 711511
Linear Fan Coil DiffusersFCD1 FCD2
IntroductionThe Waterloo linear diffuser series FCD has beendeveloped as an alternative form of continuous airdistribution product for fan coil or variable airvolume applications.Available with either one or two way coreconfigurations, the blade profile is specificallydesigned to produce jet throw characteristics with ahigh induction rate, so prompting rapid mixing anddiffusion within the room air.The core sections of the diffusers are retained withquick release spring clips and safety cords to alloweasy removal during installation and service access.
Product DescriptionFCD1 One way fan coil diffuserFCD2 Two way fan coil diffuserLH Left hand end cap for FCD1RH Right hand end cap for FCD1Ends Pair of end caps
Features• High induction rate
• Quick release cores
• Wide size range
• Tile replacement units available
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
WeightsSee Table
Sizes150mm to 400mm wide in 50mm incrementsSingle lengths of 500mm up to 1500mm,continuous applications are supplied in 1200mmlengths with alignments strips.
Order Example
FCD1/3000x250/PPM9010/ENDSTypeLengthWidthFinishEnd caps
Waterloo
Nom.Width
WdX Y Weight
(Kg/m)FCD1 FCD2 FCD1 FCD2
150 151 160 164 186 194 2.3
200 201 210 214 236 244 2.8
250 251 260 264 286 294 3.3
300 301 310 314 336 344 3.8
350 351 360 364 386 394 4.3
400 401 410 414 436 444 4.8
FCD1Y
56
WdX
FCD2Y
56WdX
Y
Nom. L + 30Nom. L
(FCD1)
Nom. L + 12
Face View
Left hand end capThrow direction Right hand end cap
Waterloo 2.0 15 Tel: +44 (0) 1622 711511
Linear Fan Coil DiffusersFCD1 FCD2
Performance Tables
room air velocity (Vr) of 0.25 m/s with acooling differential of 10°C. For isothermalor 10°C heating conditions apply a factor of1.15 to the throws.To avoid draughts in the occupied zone, theselection of diffuser sizes and the resultingthrows should be related to the ceiling height.The following table provides a generalrecommendation for maximum throwselections at various ceiling heights.
Selection CriteriaThe following tabulated data is based ontests with a 1.2m diffuser. Correction factorsshould be applied to the acoustic and throwdata for continuous lengths.Noise data is valid for one or two waythrow configurations and is expressed interms of NR level with a room absorptionfactor of 8dB.Throws are based on a terminal velocity of0.5 m/s, corresponding to an average
Waterloo
FCDSupply Air Volume per metre
Nom. H 150 200
m3/h/m l/s/m
1 W
ay T
hrow
2 W
ay T
hrow
Ps S
uppl
y
Ps E
xtra
ct
Lp (N
R)
1 W
ay T
hrow
2 W
ay T
hrow
Ps S
uppl
yPs
Ext
ract
Lp (N
R)
270 75 3.0 2.1 2 4 -360 100 4.2 3.1 4 7 - 3.3 2.4 - - -450 125 5.3 4.3 6 11 20 4.4 3.2 3 6 -540 150 6.5 5.5 8 15 25 5.3 4.1 4 8 20630 175 7.9 6.8 11 20 30 6.4 5.0 6 11 24720 200 9.2 7.6 14 27 33 7.4 6.1 8 15 28810 225900 250990 275
FCDSupply Air Volume per metre
Nom. H 250 300
m3/h/m l/s/m1
Way
Thr
ow
2 W
ay T
hrow
Ps S
uppl
y
Ps E
xtra
ct
Lp (N
R)
1 W
ay T
hrow
2 W
ay T
hrow
Ps S
uppl
y
Ps E
xtra
ct
Lp (N
R)
432 120 3.4 2.5 2 3 -504 140 4.1 2.9 3 4 -576 160 4.8 3.5 3 5 20 4.2 2.9 2 4 -648 180 5.6 4.1 4 6 23 4.8 3.4 3 5 20720 200 6.2 4.7 5 8 25 5.4 3.9 3 6 23810 225 7.2 5.5 6 10 28 6.2 4.6 4 8 26900 250 7.9 6.4 7 12 31 7.1 5.4 5 10 29990 275 9.1 7.2 9 15 33 7.8 6.2 6 12 311080 300 10.0 8.5 11 18 35 8.7 7.0 7 14 33
FCDSupply Air Volume per metre
Nom. H 350 400
m3/h/m l/s/m
1 W
ay T
hrow
2 W
ay T
hrow
Ps S
uppl
y
Ps E
xtra
ct
Lp (N
R)
1 W
ay T
hrow
2 W
ay T
hrow
Ps S
uppl
y
Ps E
xtra
ct
Lp (N
R)
792 220 5.5 3.9 3 6 22864 240 6.0 4.4 3 7 25936 260 6.5 4.8 4 8 27 6.0 4.3 3 6 241008 280 7.0 5.5 4 9 29 6.5 4.8 3 7 261080 300 7.8 5.9 5 11 30 7.0 5.2 4 8 281170 325 8.5 6.8 6 13 32 7.6 6.0 4 10 301260 350 9.0 7.3 7 14 34 8.7 6.5 5 11 321350 375 10.0 8.3 8 16 36 9.2 7.3 6 13 331440 400 9.8 7.9 6 15 35
Length Corrections
Active Length (m) 0.5 1.0 2.0 2.5 3.0NR Correction -4 -1 +2 +3 +5Throw Multiplier 0.7 0.8 1.1 1.25 1.5
Throw Recommendations
Ceiling Height (m) 2.5 2.7 3.0 3.5 4.0Max Throw (m) 4.0 5.5 6.5 9.5 12.0
IntroductionCorrect selection and sizing ofdistribution plenum chambers andneck reducers is critical becauseterminal air resistance is very lowrelative to the distribution ductworkresistance. It is thereforerecommended that whenever possibleterminals are served by low velocitystub ducts from branch ductingsystems fitted with correct balancingcontrols.Where it is necessary to specify anduse plenums a generous allowancefor commissioned noise generationshould be made. A similar effectresults from use of neck reducers withcircular duct connections because thereduced duct area will causegenerally higher velocities and henceincreased risk of noise generation.
Product DescriptionPBHL High-line Plenum chamberPBLL Low-line Plenum chamberSE Side Entry spigotTE Top Entry spigotEE End Entry spigotCC Circular connectionRC Rectangular connectionLINED 6mm Type “O” fire rated
acoustic liningBAFFLE Perforated plate for more
even air flow to diffuser
Waterloo 2.0 16 Tel: +44 (0) 1622 711511
Linear DiffusersPlenum Chambers
Control Options
Waterloo
High-line plenum chamber Low-line plenum chamber
FDCCord operated flapdamper for mountingwithin circular spigots toplenum chambers.
FDQFlap damper withexternal quadrantcontrol for mountingwithin circular spigotsto plenum chambers.
OBCOCord operatedopposed bladedamper forinstallation withinsquare or rectangularplenum spigots.
OBSS / EDStandard opposedblade damper fordiffuser or ductmounting
Recommended Max Air Volume for NR35 Basedon Recommended Spigot Sizes
Diameter 100 125 160 200 250 315 400l/s 28 42 70 100 165 260
Order Example
PBHL/CSF/1200 x 250 x 250/SE/150/2CC/OBSS/LinedTypeDiffuser TypePlenum Chamber LengthPlenum Chamber WidthPlenum Chamber HeightEntrySpigot SizeSpigot ConnectionsOptionOption
InstallationThe plenum boxes and neckreducers are supported by 4 droprods through a locating holepositioned near each corner.
When ordering plenum chambersplease specify length width &height, spigot size and position(top or side entry) and controloptions. Please note that theplenum height should in general be100mm greater that the spigotdiameter (side entry applications).
Waterloo 2.0 17 Tel: +44 (0) 1622 711511
Linear DiffusersPlenum Performance Nomogram
54
3
2
1
Pivo
tLin
e
Pivo
tLin
e
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
60
70
8090
100
150
200
250
300
350
400450500
600
Spigotdiameter
(mm)
Air flowrate (l/s)
Spigot airvelocity(m/s)
Diffuserpressureloss (Pa)
Width(mm)
Height(mm)
Plenum dimensions
Width(mm)
Height(mm)
Rectangularor square spigot
Stan
dard
CS
Slot
Wid
ths
Spigot Air VelocitySelection Guidem/s NR2.0 202.5 253.0 303.5 354.0 40
Example
Selection ExampleUsing the CS example from page 5, we havea diffuser handling 180 l/s total with apressure drop of 25 Pa. Projecting from thisvolume through the diffuser pressure loss, thenpivot on the plenum dimensions to suit thediffuser 2 slot width, which gives a minimumplenum height of approx 280mm. Draw a linefrom the air flow selection point through therequired spigot air velocity and read off the
nearest standard spigot size. In this examplethe spigot diameter exceeds the selectedplenum height, so the height now becomes315+100 = 415mm.Alternatively, to maintain the original height,select a suitably sized rectangular spigot (300x 200 in the example) or use multiple circularspigots.
Performance Nomogram
Waterloo
Waterloo 2.0 18 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE DFA
Order Example
DF-41/300x300/PPM9010/OBSSTypeDuct widthDuct heightFinishDamper
Nominal + 2 i/s stack
Nominal - 16 o/s damper
DF-T8 Frame
OBSS damperOperated by screwdriver after
removing core. Suitable for all types
OBLL damperLever operation at diffuser face.
Suitable for core 41 only
8
DF-T16 Frame
16
Waterloo
DF - T16 and DF - T8
5
75
Nom. + 145
Nom. - 3Nom. + 75
DF
45
Nom. - 6
IntroductionThe Waterloo series D multicone diffusers, constructed from aluminiumalloy extrusions with mitred and welded/cleated frames, are ideal formost commercial projects requiring high quality diffusers forintegration with a variety of ceiling types. The range is available with5 frame styles and 14 different air pattern control core designs forvertical and horizontal diffusion.
Product DescriptionDF Flanged horizontal blow diffuserDF-T8 8mm Drop tegular tile replacement, core
41 only, 375 & 450mm neck sizesDF-T16 16mm drop tegular tile replacement, core
41 only, 375 & 450 square necksDE Recessed frame horizontal blow diffuserDFA Flanged adjustable diffuser for horizontal or
vertical projection (4 way only)OBSS Opposed blade damperOBLL Lever operated damper via the diffuser facePBD Plenum boxNR/D Top entry neck reducer
Features• Five frame styles for integration with most ceilings• 14 core styles to suit required air pattern• Lightweight aluminium construction• Fixed or adjustable patterns• Suits 300, 500 ,600 & 1200 ceiling grid systems
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
WeightsDF/DE/DFA 12.5 kg/m2 face areaOBSS/ED 9.5 kg/m2 face area
SizesSeries DF/DE Minimum size - 150 x 150 duct size
Maximum size - 1200 x 600 duct size
Series DF-T8/T16 Miniumum size - 375 x 375 duct size(500mm tile replacement)Maximum size - 450 x 450 duct size (600mm tile replacement)
Series DFA Minimum size - 150 x 150 duct sizeMaximum size - 600 x 600 duct size
Standard increments of 75mm only
Nom. + 75
Nom. + 74
Nom.
45
60
DE
DFANom. + 73
784.
8
12
Nom. + 38
Nom.
Waterloo 2.0 19 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE
Performance Tables
-1.0 - 1.5
34
-1.0 - 2.0
76
-1.5 - 2.5
135
-2.0 - 3.5
211
222.0 - 4.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.0 - 2.0
45
-1.5 - 2.5
101
202.0 - 3.5
180
242.0 - 4.5
282
282.5 - 5.0
40515
Lw
l/sMin - Max (m)
-1.5 - 2.5
56
-2.0 - 3.5
127
252.0 - 4.5
225
292.5 - 5.5
352
333.5 - 6.5
50623
Lw
l/sMin - Max (m)
-1.5 - 3.0
68
232.0 - 4.0
152
292.5 - 5.0
270
333.5 - 6.5
422
364.0 - 8.0
60833
Lw
l/sMin - Max (m)
192.0 - 3.5
79
272.0 - 4.5
177
323.0 - 6.0
315
374.0 - 7.5
492
404.5 - 9.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
SupplyCore 41Core 31
-1.5 - 2.5
34
-2.0 - 4.0
76
-2.5 - 5.5
135
-3.5 - 6.5
211
-3.5 - 7.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-2.0 - 3.5
45
202.5 - 5.5
101
233.5 - 6.5
180
254.5 - 8.5
282
255.5 - 10.0
40515
Lw
l/sMin - Max (m)
202.0 - 4.5
56
253.5 - 6.5
127
284.5 - 8.5
225
305.5 - 11.0
352
356.5 - 13.0
50623
Lw
l/sMin - Max (m)
242.5 - 5.5
68
294.0 - 8.0
152
325.0 - 10.5
270
346.5 - 13.5
422
357.5 - 16.0
60833
Lw
l/sMin - Max (m)
283.0 - 6.0
79
324.5 - 9.0
177
356.5 - 12.0
315
377.5 - 15.0
492
409.0 - 18.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
SupplyCore 11
-1.0 - 2.0
34
-1.5 - 2.5
76
-2.0 - 3.5
135
-2.5 - 4.5
211
212.5 - 6.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.0 - 2.5
45
202.0 - 3.5
101
232.5 - 5.0
180
253.0 - 6.0
282
273.5 - 7.5
40515
Lw
l/sMin - Max (m)
201.5 - 3.0
56
252.5 - 5.0
127
283.0 - 6.0
225
304.0 - 7.5
352
324.5 - 9.0
50623
Lw
l/sMin - Max (m)
242.0 - 3.5
68
292.5 - 5.5
152
323.5 - 7.5
270
345.0 - 9.5
422
355.5 - 11.0
60833
Lw
l/sMin - Max (m)
282.0 - 4.5
79
323.0 - 6.0
177
354.5 - 8.5
315
375.5 - 11.0
492
396.5 - 13.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
SupplyCore 21
1.0 - 2.034
1.0 - 2.076
1.5 - 3.0135
2.0 - 3.5211
2.5 - 5.0304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
- - - - 21Lw
l/sS Min - Max (m)L Min - Max (m) 1.0 - 2.0 1.0 - 2.5 2.0 - 3.5 2.0 - 4.0 3.5 - 6.5
1.0 - 2.045
1.0 - 2.5101
2.0 - 4.0180
2.0 - 4.5282
2.5 - 5.0405
15
- 20 23 25 27Lw
l/sS Min - Max (m)L Min - Max (m) 1.0 - 2.0 2.0 - 3.5 2.0 - 4.5 2.5 - 5.0 3.5 - 7.0
1.0 - 2.056
2.0 - 3.5127
2.0 - 4.5225
2.5 - 5.5352
3.5 - 6.5506
23
20 25 28 30 32Lw
l/sS Min - Max (m)L Min - Max (m) 1.5 - 2.5 2.0 - 4.0 2.5 - 5.0 3.5 - 6.0 4.0 - 8.0
1.5 - 2.563
2.0 - 4.5152
2.5 - 5.0270
3.5 - 6.5422
4.0 - 8.0608
33
24 29 32 34 35Lw
l/sS Min - Max (m)L Min - Max (m) 2.0 - 3.5 2.5 - 5.0 3.5 - 6.5 4.0 - 8.0 5.0 - 10.0
2.0 - 3.579
2.5 - 4.5177
3.0 - 6.0315
4.0 - 7.5492
4.5 - 9.0709
43
28 32 35 37 39Lw
l/sS Min - Max (m)L Min - Max (m) 2.0 - 4.0 2.5 - 6.0 4.0 - 7.5 5.0 - 9.5 6.0 - 11.5
375x
375
450x
450
SupplyLL
S
S = Short side throwL = Long side throw
Selection ExampleDF41/300x300Air flow rate 225 l/sThrow 2.0 - 4.5mTotal Pressure Loss 23 PaNoise level NC25
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
For our full range of sizes please refer to the following pages
Waterloo
Waterloo 2.0 20 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 11
Selection ExampleDF11/300x300Air flow rate 225 l/sThrow 4.5 - 8.5mTotal Pressure Loss 15 PaNoise level NC23
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-1.5 - 2.5
34
-2.0 - 4.0
76
-2.5 - 5.5
135
-3.5 - 6.5
211
-3.5 - 7.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-2.0 - 3.5
45
202.5 - 5.5
101
233.5 - 6.5
180
254.5 - 8.5
282
255.5 - 10.0
40515
Lw
l/sMin - Max (m)
202.0 - 4.5
56
253.5 - 6.5
127
284.5 - 8.5
225
305.5 - 11.0
352
356.5 - 13.0
50623
Lw
l/sMin - Max (m)
242.5 - 5.5
68
294.0 - 8.0
152
325.0 - 10.5
270
346.5 - 13.5
422
357.5 - 16.0
60833
Lw
l/sMin - Max (m)
283.0 - 6.0
79
324.5 - 9.0
177
356.5 - 12.0
315
377.5 - 15.0
492
409.0 - 18.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
204.0 - 8.0
413
204.5 - 8.5
540
305.5 - 10.0
551
306.0 - 11.0
720
356.5 - 13.0
689
357.0 - 14.0
900
407.0 - 14.0
827
408.5 - 17.0
1080
409.5 - 18.5
964
4510.0 - 19.0
1260
525x
525
600x
600
SupplyCore 11
Waterloo
Waterloo 2.0 21 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 12
Selection ExampleDF12/450x150Air flow rate 169 l/sThrow 4.0 - 8.0mTotal Pressure Loss 23 PaNoise level NC25
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-2.0 - 3.5
51
-2.5 - 4.0
67
-3.0 - 5.0
101
203.5 - 5.5
118
204.0 - 6.0
135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-2.0 - 4.5
68
202.5 - 5.0
90
203.0 - 7.0
135
253.5 - 7.5
158
254.0 - 8.0
18015
Lw
l/sMin - Max (m)
232.5 - 5.5
84
253.0 - 6.0
113
254.0 - 8.0
169
304.5 - 9.0
197
305.0 - 10.0
22523
Lw
l/sMin - Max (m)
273.5 - 6.5
101
304.0 - 7.0
135
305.0 - 10.0
202
355.5 - 10.5
236
356.0 - 11.0
27033
Lw
l/sMin - Max (m)
304.0 - 7.5
118
354.5 - 8.0
158
356.0 - 11.0
236
-2.5 - 4.5
84
375x
150
202.7 - 6.0
113
253.5 - 7.0
140
304.5 - 8.5
169
355.5 - 10.0
197
356.5 - 12.0
275
357.0 - 13.0
31543
Lw
l/sMin - Max (m)
525x
150
600x
150
-2.5 - 5.0
101
-3.0 - 5.5
127
253.0 - 6.0
135
253.5 - 6.5
169
304.0 - 8.0
169
304.5 - 8.5
211
354.5 - 9.0
202
355.0 - 9.5
253
355.0 - 10.5
236
355.5 - 11.0
295
300x
225
375x
225
-3.5 - 6.0
153
254.0 - 7.0
203
305.0 - 9.0
253
355.5 - 10.0
303
356.0 - 11.5
354
450x
225
204.0 - 7.0
177
204.5 - 8.0
203
254.5 - 8.0
237
255.0 - 9.0
271
305.5 - 10.0
295
306.0 - 12.0
337
356.0 - 12.0
354
357.0 - 14.0
404
407.0 - 15.0
413
408.0 - 16.0
472
525x
225
600x
225
SupplyCore 12
-2.5 - 6.0
169
-3.0 - 6.5
203
-3.5 - 7.0
236
-4.0 - 8.0
271
-3.0 - 6.5
253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
244.0 - 8.0
225
254.5 - 9.0
270
255.0 - 10.0
315
256.0 - 11.0
360
254.5 - 9.0
33815
Lw
l/sMin - Max (m)
295.0 - 10.0
281
305.5 - 11.0
338
306.0 - 12.0
394
307.0 - 13.0
441
305.5 - 11.0
42223
Lw
l/sMin - Max (m)
336.0 - 12.0
338
356.5 - 13.0
405
357.0 - 15.0
473
358.0 - 16.0
540
356.5 - 13.0
50633
Lw
l/sMin - Max (m)
367.0 - 13.5
394
407.5 - 15.0
473
408.0 - 16.0
551
409.0 - 18.0
630
407.5 - 15.0
59043
Lw
l/sMin - Max (m)
600x
300
450x
375
-3.5 - 7.0
296
-4.0 - 8.0
339
305.0 - 10.0
394
256.0 - 11.0
450
356.0 - 12.0
492
307.0 - 13.0
562
407.0 - 14.0
591
358.0 - 16.0
674
408.0 - 16.0
689
409.0 - 18.0
788
525x
375
600x
375
-3.0 - 7.0
354
305.0 - 9.5
472
356.0 - 12.0
591
407.0 - 14.5
709
408.5 - 16.0
827
525x
450
-4.0 - 8.0
406
-3.0 - 8.5
474
306.0 - 11.0
540
306.0 - 11.0
629
357.0 - 13.0
675
357.0 - 14.0
785
408.0 - 16.0
810
409.0 - 18.0
942
409.0 - 18.0
945
4010.0 - 20.0
1103
600x
450
600x
525
Waterloo
Waterloo 2.0 22 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 13
Selection ExampleDF13/450x150Air flow rate 169 l/sThrow 4.0 - 7.5mTotal Pressure Loss 23 PaNoise level NC27
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-2.0 - 3.5
51
-2.0 - 3.5
67
-2.5 - 5.0
101
203.0 - 5.5
118
204.0 - 6.0
135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-2.0 - 4.5
68
202.5 - 5.0
90
223.0 - 6.0
135
253.5 - 7.0
158
254.5 - 9.0
18015
Lw
l/sMin - Max (m)
232.5 - 5.5
84
243.0 - 6.0
113
274.0 - 7.5
169
304.5 - 8.0
197
305.0 - 10.0
22523
Lw
l/sMin - Max (m)
273.5 - 6.5
101
284.0 - 7.5
135
304.5 - 9.0
202
355.0 - 11.0
236
356.0 - 12.0
27033
Lw
l/sMin - Max (m)
304.0 - 7.5
118
324.5 - 8.5
158
345.0 - 10.5
236
-2.0 - 4.0
84
375x
150
202.5 - 6.0
113
263.5 - 6.5
140
294.0 - 8.0
169
335.0 - 10.0
197
356.0 - 12.0
275
357.0 - 15.0
31543
Lw
l/sMin - Max (m)
525x
150
600x
150
-2.5 - 5.0
101
-2.5 - 5.5
127
223.0 - 6.0
135
223.5 - 6.5
169
274.0 - 7.5
169
274.5 - 8.5
211
304.5 - 9.0
202
325.0 - 10.0
253
345.0 - 10.5
236
356.0 - 12.0
295
300x
225
375x
225
-3.0 - 6.0
153
254.0 - 7.0
203
305.0 - 10.0
253
355.5 - 11.0
303
356.5 - 13.0
354
450x
225
-3.5 - 6.5
177
-4.0 - 7.0
203
244.5 - 8.0
237
255.0 - 9.0
271
295.5 - 11.0
295
306.0 - 12.0
337
336.0 - 12.0
354
357.0 - 14.0
404
377.0 - 14.0
413
358.0 - 16.0
472
525x
225
600x
225
SupplyCore 13
-2.5 - 6.0
169
-3.5 - 6.5
203
204.0 - 7.0
236
-4.5 - 7.5
271
-3.0 - 6.5
253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
244.0 - 8.0
225
254.5 - 8.5
270
265.0 - 9.0
315
255.5 - 10.0
360
254.5 - 9.0
33815
Lw
l/sMin - Max (m)
295.0 - 10.0
281
305.0 - 10.5
338
305.5 - 11.5
394
306.0 - 12.0
441
305.5 - 11.0
42223
Lw
l/sMin - Max (m)
336.0 - 11.5
338
346.5 - 13.0
405
347.0 - 14.0
473
357.5 - 15.0
540
356.5 - 13.0
50633
Lw
l/sMin - Max (m)
367.0 - 13.5
394
367.5 - 15.0
473
378.0 - 16.0
551
409.0 - 18.0
630
407.5 - 15.0
59043
Lw
l/sMin - Max (m)
600x
300
450x
375
-3.5 - 7.0
296
-4.0 - 7.5
339
255.0 - 10.0
394
255.5 - 11.0
450
306.0 - 12.0
492
306.5 - 13.0
562
357.0 - 14.0
591
357.5 - 15.0
674
408.0 - 16.0
689
409.0 - 17.0
788
525x
375
600x
375
-3.5 - 7.5
354
305.0 - 10.0
472
356.5 - 12.5
591
407.5 - 15.0
709
409.0 - 16.5
827
525x
450
-4.0 - 8.0
406
203.0 - 8.5
474
306.0 - 11.0
540
306.0 - 11.0
629
357.0 - 13.0
675
357.0 - 14.0
785
408.0 - 16.0
810
408.5 - 17.5
942
409.5 - 18.0
945
4010.0 - 20.0
1103
600x
450
600x
525
Waterloo
Waterloo 2.0 23 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 21
Selection ExampleDF21/300x300Air flow rate 225 l/sThrow 3.0 - 6.0mTotal Pressure Loss 23 PaNoise level NC28
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-1.0 - 2.0
34
-1.5 - 2.5
76
-2.0 - 3.5
135
-2.5 - 4.5
211
212.5 - 6.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.0 - 2.5
45
202.0 - 3.5
101
232.5 - 5.0
180
253.0 - 6.0
282
273.5 - 7.5
40515
Lw
l/sMin - Max (m)
201.5 - 3.0
56
252.5 - 5.0
127
283.0 - 6.0
225
304.0 - 7.5
352
324.5 - 9.0
50623
Lw
l/sMin - Max (m)
242.0 - 3.5
68
292.5 - 5.5
152
323.5 - 7.5
270
345.0 - 9.5
422
355.5 - 11.0
60833
Lw
l/sMin - Max (m)
282.0 - 4.5
79
323.0 - 6.0
177
354.5 - 8.5
315
375.5 - 11.0
492
396.5 - 13.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
253.0 - 6.5
413
253.5 - 7.0
540
525x
525
600x
600
304.0 - 8.0
551
304.5 - 8.5
720
355.0 - 10.0
689
355.5 - 10.5
900
406.5 - 13.0
827
406.5 - 13.0
1080
407.5 - 15.0
964
407.5 - 15.0
1260
SupplyCore 21
Waterloo
Waterloo 2.0 24 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 22
Selection ExampleDF22/450x150Air flow rate 169 l/sThrow 3.0 - 5.5mTotal Pressure Loss 23 PaNoise level NC27
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-1.0 - 2.5
51
-1.5 - 2.5
67
-2.0 - 3.0
101
-2.5 - 3.5
118
-3.0 - 4.0
135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.5 - 3.0
68
-2.0 - 3.5
90
203.0 - 4.5
135
203.5 - 5.0
158
204.0 - 5.5
18015
Lw
l/sMin - Max (m)
232.0 - 3.5
84
242.0 - 4.5
113
273.0 - 5.5
169
303.5 - 6.0
197
304.0 - 7.0
22523
Lw
l/sMin - Max (m)
272.0 - 4.5
101
282.5 - 5.0
135
303.5 - 6.0
202
304.0 - 6.5
236
304.5 - 8.0
27033
Lw
l/sMin - Max (m)
302.5 - 5.0
118
323.0 - 6.0
158
354.0 - 7.0
236
-1.5 - 3.0
84
375x
150
-2.5 - 4.0
113
252.5 - 5.0
140
283.0 - 5.0
169
303.5 - 6.5
197
354.5 - 8.0
275
355.0 - 9.0
31543
Lw
l/sMin - Max (m)
525x
150
600x
150
-2.0 - 3.5
101
-2.0 - 3.5
127
222.0 - 4.5
135
222.5 - 5.0
169
272.5 - 5.0
169
273.0 - 6.0
211
303.5 - 6.5
202
323.5 - 7.5
253
344.0 - 7.5
236
354.5 - 8.5
295
300x
225
375x
225
-2.5 - 4.0
153
253.0 - 5.5
203
303.5 - 6.5
253
354.0 - 8.0
303
405.0 - 9.0
354
450x
225
-3.0 - 4.5
177
203.5 - 5.0
203
253.5 - 6.0
237
254.0 - 6.5
271
304.0 - 7.0
295
304.5 - 8.0
337
354.5 - 9.0
354
355.0 - 10.0
404
405.5 - 10.0
413
406.0 - 11.0
472
525x
225
600x
225
SupplyCore 22
-2.0 - 4.0
169
-2.5 - 4.5
203
-3.5 - 5.0
236
-3.5 - 5.5
271
-2.5 - 5.0
253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
242.5 - 5.5
225
253.0 - 6.0
270
253.5 - 6.5
315
304.0 - 7.0
360
253.0 - 6.5
33815
Lw
l/sMin - Max (m)
293.5 - 7.0
281
304.0 - 7.5
338
304.5 - 8.0
394
355.0 - 9.0
441
304.0 - 8.5
42223
Lw
l/sMin - Max (m)
334.0 - 8.0
338
354.5 - 9.0
405
355.0 - 10.0
473
406.0 - 12.0
540
355.0 - 9.5
50633
Lw
l/sMin - Max (m)
365.0 - 9.5
394
405.5 - 10.0
473
406.0 - 12.0
551
407.0 - 14.0
630
406.0 - 11.0
59043
Lw
l/sMin - Max (m)
600x
300
450x
375
-3.0 - 5.5
296
203.5 - 6.0
339
253.5 - 7.0
394
304.0 - 8.0
450
304.5 - 9.0
492
355.0 - 10.0
562
355.5 - 10.0
591
356.0 - 11.0
674
406.5 - 12.0
689
407.0 - 13.0
788
525x
375
600x
375
-2.5 - 5.0
354
303.0 - 6.5
472
354.0 - 8.5
591
405.0 - 9.5
709
406.0 - 11.5
827
525x
450
203.0 - 5.5
406
204.0 - 6.0
474
304.0 - 7.0
540
305.0 - 8.0
629
355.0 - 9.0
675
355.5 - 10.0
785
406.0 - 11.0
810
406.5 - 12.0
942
407.0 - 13.0
945
408.0 - 14.0
1103
600x
450
600x
525
Waterloo
Waterloo 2.0 25 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 23
Selection ExampleDF23/450x150Air flow rate 169 l/sThrow 3.0 - 5.5mTotal Pressure Loss 23 PaNoise level NC27
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-1.0 - 2.5
51
-1.5 - 2.5
67
-2.0 - 3.5
101
-2.5 - 4.0
118
-3.0 - 5.0
135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.5 - 3.0
68
-2.0 - 3.5
90
222.5 - 4.5
135
203.0 - 5.0
158
203.5 - 6.0
18015
Lw
l/sMin - Max (m)
232.0 - 3.5
84
242.0 - 4.5
113
273.0 - 5.5
169
303.5 - 6.0
197
304.0 - 7.0
22523
Lw
l/sMin - Max (m)
272.0 - 4.5
101
282.5 - 5.0
135
303.5 - 6.5
202
304.0 - 7.0
236
304.5 - 8.0
27033
Lw
l/sMin - Max (m)
302.5 - 5.0
118
323.0 - 6.0
158
344.0 - 7.5
236
-1.5 - 3.0
84
375x
150
202.0 - 4.0
113
262.5 - 5.0
140
293.0 - 6.0
169
333.5 - 7.0
197
354.5 - 8.0
275
355.0 - 9.0
31543
Lw
l/sMin - Max (m)
525x
150
600x
150
-2.0 - 3.5
101
-2.0 - 4.0
127
222.0 - 4.5
135
222.5 - 5.0
169
272.5 - 5.5
169
273.0 - 6.0
211
303.5 - 6.5
202
323.5 - 7.5
253
344.0 - 7.5
236
354.0 - 8.5
295
300x
225
375x
225
-2.5 - 4.0
153
253.0 - 5.5
203
303.5 - 6.5
253
354.0 - 8.0
303
405.0 - 9.0
354
450x
225
-3.0 - 4.5
177
203.5 - 5.0
203
243.5 - 6.0
237
304.0 - 7.0
271
293.5 - 7.5
295
354.5 - 9.0
337
334.5 - 8.5
354
405.5 - 110
404
375.0 - 10.0
413
407.0 - 13.0
472
525x
225
600x
225
SupplyCore 23
-2.0 - 4.0
169
-2.0 - 4.5
203
202.5 - 5.0
236
203.0 - 6.0
271
202.5 - 5.0
253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
242.5 - 6.0
225
253.0 - 6.0
270
263.5 - 6.5
315
304.0 - 7.0
360
263.5 - 6.5
33815
Lw
l/sMin - Max (m)
293.5 - 7.0
281
304.0 - 8.0
338
304.5 - 9.0
394
355.0 - 10.0
441
314.5 - 8.5
42223
Lw
l/sMin - Max (m)
334.0 - 8.0
338
234.5 - 9.0
405
345.0 - 10.0
473
405.5 - 12.0
540
355.0 - 10.0
50633
Lw
l/sMin - Max (m)
365.0 - 9.5
394
375.5 - 10.5
473
376.0 - 12.0
551
407.0 - 14.0
630
386.0 - 12.0
59043
Lw
l/sMin - Max (m)
600x
300
450x
375
-3.0 - 6.0
296
203.5 - 6.5
339
254.0 - 7.0
394
304.5 - 8.0
450
305.0 - 9.0
492
355.5 - 10.0
562
355.5 - 11.0
591
356.0 - 12.0
674
407.0 - 13.0
689
407.5 - 14.0
788
525x
375
600x
375
-2.5 - 5.0
354
303.0 - 6.5
472
354.0 - 8.5
591
405.0 - 9.5
709
406.0 - 12.0
827
525x
450
203.0 - 5.5
406
203.0 - 5.5
474
303.5 - 7.0
540
304.0 - 8.0
629
354.5 - 9.0
675
355.0 - 10.0
785
405.5 - 10.0
810
406.0 - 11.0
942
407.0 - 13.0
945
407.0 - 14.0
1103
600x
450
600x
525
Waterloo
Waterloo 2.0 26 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 25
Selection ExampleDF25/300x300Air flow rate 225 l/sThrow 3.0 - 6.0mTotal Pressure Loss 23 PaNoise level NC28
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-1.0 - 2.0
34
-1.5 - 2.5
76
-2.0 - 3.5
135
-2.5 - 4.5
211
212.5 - 6.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.0 - 2.5
45
202.0 - 3.5
101
232.5 - 5.0
180
253.0 - 6.0
282
273.5 - 7.5
40515
Lw
l/sMin - Max (m)
201.5 - 3.0
56
252.5 - 5.0
127
283.0 - 6.0
225
304.0 - 7.5
352
324.5 - 9.0
50623
Lw
l/sMin - Max (m)
242.0 - 3.5
68
292.5 - 5.5
152
323.5 - 7.5
270
345.0 - 9.5
422
355.5 - 11.0
60833
Lw
l/sMin - Max (m)
282.0 - 4.5
79
323.0 - 6.0
177
354.5 - 8.5
315
375.5 - 11.0
492
396.5 - 13.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
253.0 - 6.5
413
253.0 - 7.0
540
525x
525
600x
600
304.0 - 8.0
551
304.0 - 9.0
720
355.0 - 10.0
689
355.0 - 11.0
900
40
827
406.0 - 13.0
1080
407.0 - 14.0
964
407.0 - 15.0
1260
SupplyCore 25
6.0 - 12.0
Waterloo
Waterloo 2.0 27 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 26 & 27
Selection ExampleDF26/450x150Air flow rate 169 l/sShort side throw 2.5 - 4.0mLong side throw 3.5 - 6.5mTotal Pressure Loss 23 PaNoise level NC30
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15Performance Table
-
1.0 - 2.051
-
1.0 - 2.067
-
1.5 - 2.5101
-
2.0 - 3.0118
20
2.5 - 3.5135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/s
-2.0 - 3.5
68
-2.0 - 4.5
90
203.0 - 5.5
135
253.0 - 6.0
158
253.5 - 6.5
180
15
Lw
l/s
232.0 - 4.5
242.5 - 5.0
303.5 - 6.5
304.0 - 7.0
304.0 - 8.0
23
Lw
272.5 - 5.0
283.5 - 6.5
304.5 - 8.0
305.0 - 8.0
355.5 - 9.5
33
Lw
303.0 - 6.0
118
324.0 - 7.5
158
355.0 - 9.0
236
-
1.0 - 2.084
375x
150
202.5 - 5.0
113
263.0 - 6.0
294.0 - 7.5
334.5 - 8.5
197
355.5 - 10.0
275
356.0 - 11.0
315
43
Lw
l/s
525x
150
600x
150
-
1.5 - 3.0101
-
2.0 - 3.5127
222.5 - 5.0
135
253.0 - 5.5
169
272.5 - 6.0
303.0 - 6.5
303.5 - 7.5
304.0 - 8.0
344.5 - 8.0
236
355.0 - 9.0
295
300x
225
375x
225
-
2.5 - 4.0153
253.5 - 6.0
203
303.5 - 7.0
354.5 - 9.0
355.5 - 9.0
354
450x
225
20
3.0 - 4.0177
20
3.0 - 5.01.5 - 2.5 2.0 - 3.5 2.5 - 4.5 2.5 - 5.0 3.0 - 5.52.0 - 4.0 2.0 - 4.0 2.5 - 4.5 3.0 - 5.0 3.5 - 5.5 3.5 - 6.0
203
254.0 - 7.0
237
253.5 - 7.0
1.0 - 2.5 1.0 - 2.5 1.5 - 3.0 2.0 - 3.5 2.5 - 3.51.0 - 2.5 2.0 - 4.0 2.5 - 4.5 3.0 - 5.0 3.0 - 5.5 3.0 - 6.0271
304.0 - 8.0
304.5 - 9.0
2.0 - 3.5 2.0 - 3.5 2.5 - 4.0 3.0 - 4.5 3.5 - 5.02.0 - 3.5 2.5 - 5.0 3.0 - 5.5 3.5 - 6.0 4.0 - 7.0 4.0 - 8.084 113 169 197 225l/s 140 169 211 253 295 337
355.0 - 10.0
355.5 - 11.0
2.0 - 4.0 2.0 - 4.0 2.5 - 4.5 3.5 - 5.0 3.5 - 5.52.0 - 4.0 2.5 - 6.0 3.0 - 6.5 3.5 - 7.0 4.0 - 8.0 4.5 - 9.0101 135 202 236 270l/s 169 202 253 303 354 404
406.0 - 11.0
413
407.0 - 12.0
2.0 - 4.5 2.0 - 4.5 2.5 - 5.02.0 - 4.5 3.0 - 5.5 3.5 - 6.0 3.5 - 6.5 4.0 - 7.0 4.5 - 8.0 5.0 - 9.0 5.5 - 10.0472
525x
225
600x
225
SupplyCore 26
-
2.0 - 4.0169
-
2.0 - 4.0203
-
2.5 - 4.5236
20
2.5 - 5.0271
-
2.5 - 4.5253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/s
243.0 - 6.0
225
253.5 - 7.5
270
254.0 - 7.5
315
254.5 - 8.5
360
254.0 - 7.5
338
15
Lw
l/s
294.5 - 7.0
281
304.5 - 9.0
338
305.0 - 10.0
394
305.5 - 11.0
441
305.0 - 10.0
422
23
Lw
l/s
334.5 - 9.0
335.0 - 10.5
355.5 - 11.5
356.0 - 12.0
355.5 - 11.5
33
Lw
365.0 - 10.5
394
376.0 - 12.0
473
406.5 - 13.0
551
408.0 - 15.0
630
406.5 - 13.0
590
43
Lw
l/s
600x
300
450x
375
20
2.5 - 5.0296
20
3.0 - 6.0339
254.5 - 8.0
394
255.0 - 8.5
450
306.0 - 11.0
492
306.5 - 12.0
562
356.0 - 13.0
357.0 - 14.0
407.0 - 15.0
689
408.0 - 16.0
788
525x
375
600x
375
2.5 - 5.0 2.5 - 5.0 3.0 - 5.5 3.0 - 6.0 3.0 - 5.5 3.0 - 6.0 3.5 - 6.5
2.5 - 5.0 2.5 - 5.0 3.0 - 5.5 3.0 - 6.0 3.0 - 5.5 3.0 - 6.0 3.5 - 7.0
3.0 - 6.0 3.0 - 6.0 3.5 - 6.5 4.0 - 7.0 3.5 - 6.5 4.0 - 7.0 5.0 - 8.0
4.0 - 7.5 4.0 - 7.5 4.5 - 8.5 5.0 - 9.0 4.5 - 8.5 5.0 - 9.0 6.0 - 10.0338 405 473 540 506l/s 591 674
4.5 - 8.5 4.5 - 8.5 5.0 - 9.5 6.0 - 12.0 5.0 - 9.5 6.0 - 11.0 7.0 - 12.0
Core 27
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
L L
S S
S = Short side throwL = Long side throwViewed from face Viewed from face
Waterloo
Waterloo 2.0 28 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 31
Selection ExampleDF31/300x300Air flow rate 225 l/sShort side throw 2.0 - 4.5mLong side throw 2.5 - 5.0mTotal Pressure Loss 23 PaNoise level NC28
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
Core 31
1.0 - 2.034
1.0 - 2.076
1.5 - 3.0135
2.0 - 3.5211
2.5 - 5.0304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
- - - - 21Lw
l/sS Min - Max (m)L Min - Max (m) 1.0 - 2.0 1.0 - 2.5 2.0 - 3.5 2.0 - 4.0 3.5 - 6.5
1.0 - 2.045
1.0 - 2.5101
2.0 - 4.0180
2.0 - 4.5282
2.5 - 5.0405
15
- 20 23 25 27Lw
l/sS Min - Max (m)L Min - Max (m) 1.0 - 2.0 2.0 - 3.5 2.0 - 4.5 2.5 - 5.0 3.5 - 7.0
1.0 - 2.056
2.0 - 3.5127
2.0 - 4.5225
2.5 - 5.5352
3.5 - 6.5506
23
20 25 28 30 32Lw
l/sS Min - Max (m)L Min - Max (m) 1.5 - 2.5 2.0 - 4.0 2.5 - 5.0 3.5 - 6.0 4.0 - 8.0
1.5 - 2.563
2.0 - 4.5152
2.5 - 5.0270
3.5 - 6.5422
4.0 - 8.0608
33
24 29 32 34 35Lw
l/sS Min - Max (m)L Min - Max (m) 2.0 - 3.5 2.5 - 5.0 3.5 - 6.5 4.0 - 8.0 5.0 - 10.0
2.0 - 3.579
2.5 - 4.5177
3.0 - 6.0315
4.0 - 7.5492
4.5 - 9.0709
43
28 32 35 37 39Lw
l/sS Min - Max (m)L Min - Max (m) 2.0 - 4.0 2.5 - 6.0 4.0 - 7.5 5.0 - 9.5 6.0 - 11.5
375x
375
450x
450
3.5 - 7.0413
4.0 - 8.0540
25 304.5 - 9.0 5.5 - 10.0
3.5 - 7.0551
4.0 - 8.0720
30 355.0 - 9.5 5.5 - 10.0
4.0 - 7.0689
5.0 - 8.0900
35 405.5 - 9.0 5.0 - 10.0
4.5 - 9.0827
5.0 - 10.01080
40 405.5 - 11.0 6.0 - 12.0
5.0 - 10.0964
6.0 - 12.01260
45 456.5 - 12.0 7.0 - 14.0
525x
525
600x
600
SupplyLL
S
S = Short side throwL = Long side throw
Waterloo
Waterloo 2.0 29 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 32
Selection ExampleDF32/450x150Air flow rate 169 l/sShort side throw 1.5 - 3.0mShort side throw 3.0 - 6.0mTotal Pressure Loss 23 PaNoise level NC27
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15Performance Table
-
1.0 - 2.051
-
1.0 - 2.067
-
1.0 - 2.0101
-
1.5 - 2.5118
-
2.0 - 4.0135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/s
-1.0 - 2.5
68
-2.0 - 3.5
90
222.5 - 5.0
135
253.0 - 5.5
158
253.5 - 6.0
180
15
Lw
l/s
232.0 - 3.5
242.0 - 4.5
273.0 - 6.0
303.5 - 6.5
304.0 - 7.0
23
Lw
272.0 - 4.0
282.5 - 5.0
304.0 - 7.5
304.5 - 8.5
355.0 - 9.0
33
Lw
302.5 - 4.5
118
323.0 - 6.0
158
344.5 - 8.5
236
-
1.0 - 2.084
375x
150
202.0 - 4.5
113
262.5 - 5.0
293.5 - 6.5
334.0 - 7.5
197
355.0 - 9.5
275
355.5 - 11.0
315
43
Lw
l/s
525x
150
600x
150
-
1.5 - 3.0101
-
2.0 - 3.0127
222.0 - 4.0
135
222.0 - 4.5
169
272.0 - 4.5
272.5 - 5.5
302.5 - 5.0
323.5 - 6.5
343.0 - 6.0
236
354.0 - 8.0
295
300x
225
375x
225
-
2.5 - 4.0153
252.5 - 5.0
203
303.0 - 6.0
354.0 - 7.0
354.5 - 9.0
354
450x
225
-
3.0 - 5.0177
-
3.0 - 6.01.0 - 2.0 1.5 - 2.5 2.0 - 3.5 2.5 - 4.0 3.0 - 4.52.0 - 3.5 1.5 - 3.0 2.0 - 3.5 2.5 - 4.0 2.5 - 5.0 3.0 - 6.0
203
243.0 - 6.0
237
253.5 - 6.5
1.0 - 2.0 1.0 - 2.0 1.0 - 2.0 1.5 - 2.5 2.0 - 3.01.0 - 2.0 2.0 - 4.0 2.5 - 3.5 3.0 - 4.0 3.5 - 5.0 4.0 - 5.5271
293.5 - 7.0
304.0 - 9.0
1.5 - 3.0 1.5 - 3.0 1.5 - 3.0 1.5 - 3.5 2.0 - 4.01.5 - 3.0 2.0 - 4.5 2.0 - 4.0 2.5 - 5.0 3.0 - 6.0 3.5 - 7.084 113 169 197 225l/s 140 169 211 253 295 337
334.5 - 9.0
355.0 - 10.0
2.0 - 3.5 2.0 - 3.5 2.0 - 3.5 2.5 - 4.0 3.0 - 4.52.0 - 3.5 2.5 - 5.0 2.5 - 5.0 3.5 - 6.0 3.5 - 7.0 4.0 - 8.0101 135 202 236 270l/s 169 202 253 303 354 404
375.0 - 10.0
413
405.5 - 12.0
2.0 - 4.5 2.0 - 4.5 2.0 - 4.52.0 - 4.5 2.5 - 5.5 3.0 - 6.0 3.0 - 6.0 3.5 - 6.5 4.0 - 7.0 5.0 - 8.0 5.5 - 9.0472
525x
225
600x
225
SupplyCore 32
-
2.0 - 3.5169
-
2.0 - 3.5203
-
2.5 - 4.0236
20
3.0 - 4.5271
20
2.0 - 4.0253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/s
242.5 - 5.0
225
252.5 - 5.0
270
253.0 - 5.5
315
303.5 - 6.0
360
252.5 - 5.5
338
15
Lw
l/s
292.5 - 6.0
281
303.5 - 6.5
338
304.0 - 7.0
394
354.5 - 7.5
441
313.5 - 7.5
422
23
Lw
l/s
333.5 - 7.5
334.0 - 8.0
354.5 - 8.5
355.0 - 9.0
354.5 - 8.5
33
Lw
364.0 - 8.0
394
374.5 - 9.0
473
405.0 - 9.5
551
405.5 - 10.0
630
385.0 - 10.0
590
43
Lw
l/s
600x
300
450x
375
20
2.5 - 4.5296
25
3.0 - 5.0339
303.0 - 6.0
394
353.5 - 6.5
450
354.0 - 8.0
492
404.5 - 8.5
562
355.0 - 9.0
405.5 - 10.0
405.5 - 11.0
689
456.0 - 12.0
788
525x
375
600x
375354
472
591
827
525x
450406
2.0 - 3.5 2.0 - 4.0 2.5 - 4.5 3.0 - 5.0 2.0 - 4.5 2.5 - 5.0 3.0 - 6.0
474
5402.0 - 4.5 2.5 - 5.0 3.0 - 5.5 3.5 - 6.0 2.5 - 5.0 3.0 - 5.5 3.5 - 6.0
629
6752.5 - 5.5 2.5 - 6.0 3.0 - 6.5 3.5 - 7.0 3.5 - 6.5 4.0 - 7.0 4.5 - 7.5
785
3.5 - 6.5 3.5 - 7.5 4.0 - 8.0 4.5 - 8.5 4.0 - 8.0 4.5 - 9.0 5.0 - 9.5338 405 473 540 506l/s 591 674 709 810 942
9454.0 - 7.5 4.0 - 8.0 4.5 - 8.5 5.0 - 9.0 4.5 - 9.0 5.0 - 10.0 5.5 - 11.0
22
2.5 - 5.0
283.5 - 6.5
324.5 - 8.5
375.0 - 10.0
406.0 - 12.0
25
3.0 - 5.5
25
3.0 - 5.5
304.0 - 7.0
304.0 - 7.0
355.0 - 9.0
355.0 - 9.0
405.5 - 11.0
405.5 - 10.5
406.5 - 13.0
406.5 - 12.5
2.5 - 5.0 3.0 - 5.5 3.0 - 5.5
3.0 - 6.0 3.5 - 6.5 3.5 - 6.5
4.0 - 7.5 4.5 - 8.0 4.5 - 8.0
4.5 - 9.0 5.0 - 10.0 5.0 - 9.5
5.5 - 11.0 6.0 - 12.0 6.0 - 11.51103
600x
450
600x
525
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
L
SS
S = Short side throwL = Long side throw
Waterloo
Waterloo 2.0 30 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 33
Selection ExampleDF33/450x150Air flow rate 169 l/sShort side throw 2.0 - 3.0mLong side throw 3.0 - 5.0mTotal Pressure Loss 23 PaNoise level NC30
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15Performance Table
-
1.0 - 1.551
-
1.0 - 1.567
-
1.5 - 2.0101
20
2.0 - 2.5118
20
2.5 - 3.0135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/s
-1.5 - 2.5
68
-2.0 - 3.5
90
202.5 - 4.0
135
253.0 - 4.5
158
253.5 - 5.0
180
15
Lw
l/s
232.0 - 3.5
242.0 - 4.5
303.0 - 5.0
303.5 - 5.0
304.5 - 5.0
23
Lw
272.0 - 4.5
282.5 - 5.0
303.0 - 6.0
303.5 - 6.5
354.0 - 7.0
33
Lw
302.5 - 5.0
118
322.5 - 6.0
158
354.0 - 7.0
236
-
1.0 - 1.584
375x
150
202.0 - 3.5
113
262.5 - 4.5
292.5 - 5.5
333.5 - 6.5
197
354.5 - 7.5
275
355.0 - 8.0
315
43
Lw
l/s
525x
150
600x
150
-
1.0 - 2.0101
-
1.0 - 2.0127
252.0 - 4.0
135
252.0 - 4.5
169
302.5 - 5.0
302.5 - 5.5
302.5 - 6.0
353.5 - 6.5
353.5 - 7.0
236
354.0 - 8.0
295
300x
225
375x
225
-
1.5 - 2.5153
252.5 - 5.0
203
303.0 - 6.0
354.0 - 7.0
354.5 - 7.0
354
450x
225
-
2.0 - 3.0177
-
2.5 - 3.51.0 - 2.0 1.5 - 2.5 2.0 - 3.0 2.5 - 3.5 3.0 - 4.01.5 - 2.5 1.5 - 2.5 2.0 - 3.5 2.5 - 4.0 3.0 - 4.5 3.5 - 5.0
203
253.0 - 5.5
237
253.5 - 6.0
1.0 - 2.0 1.0 - 2.0 1.5 - 2.5 2.0 - 3.0 2.5 - 3.51.0 - 2.0 1.5 - 2.5 1.5 - 2.5 2.0 - 3.0 2.5 - 3.5 3.0 - 4.0271
303.5 - 6.5
304.0 - 7.0
1.0 - 2.5 1.5 - 2.5 2.0 - 3.0 2.5 - 3.5 3.0 - 4.01.5 - 2.5 2.0 - 3.5 2.0 - 3.5 2.5 - 4.0 3.0 - 4.5 3.5 - 5.084 113 169 197 225l/s 140 169 211 253 295 337
354.5 - 7.5
355.0 - 8.0
1.5 - 2.5 1.5 - 2.5 2.0 - 3.0 2.5 - 3.5 3.0 - 6.01.5 - 2.5 2.0 - 4.0 2.0 - 4.0 2.5 - 4.5 3.0 - 5.0 3.5 - 5.5101 135 202 236 270l/s 169 202 253 303 354 404
355.0 - 9.0
413
405.5 - 10.0
1.5 - 3.0 1.5 - 3.0 2.0 - 3.51.5 - 3.0 2.5 - 4.0 3.0 - 4.5 2.5 - 5.0 2.5 - 5.0 3.0 - 5.5 3.5 - 6.0 4.0 - 7.0472
525x
225
600x
225
SupplyCore 33
-
1.5 - 2.5169
-
1.5 - 2.5203
20
2.0 - 3.0236
20
2.5 - 3.5271
20
2.0 - 3.5253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/s
252.5 - 5.0
225
252.5 - 5.5
270
253.0 - 6.0
315
303.5 - 6.5
360
253.0 - 6.0
338
15
Lw
l/s
303.0 - 6.0
281
303.5 - 7.0
338
304.0 - 7.5
394
354.5 - 8.0
441
304.0 - 7.5
422
23
Lw
l/s
354.0 - 7.5
354.0 - 8.0
354.5 - 8.5
355.0 - 9.0
354.5 - 9.0
33
Lw
354.5 - 8.5
394
405.0 - 9.5
473
405.5 - 10.0
551
406.0 - 10.5
630
405.0 - 10.5
590
43
Lw
l/s
600x
300
450x
375
20
2.5 - 4.0296
25
3.0 - 4.5339
303.5 - 6.5
394
304.0 - 7.0
450
354.5 - 7.5
492
355.0 - 8.0
562
355.0 - 9.5
405.5 - 10.0
405.5 - 11.0
689
406.5 - 11.5
788
525x
375
600x
375354
472
591
827
525x
450406
2.0 - 4.0 2.0 - 4.5 2.5 - 5.0 3.0 - 5.5 2.5 - 4.5 3.0 - 5.0 3.5 - 5.5
474
5402.0 - 3.5 2.0 - 3.5 2.5 - 4.0 3.0 - 4.5 2.0 - 4.5 2.5 - 4.5 3.0 - 5.0
629
6752.0 - 4.5 2.0 - 4.5 2.5 - 5.0 3.0 - 5.5 2.5 - 5.5 3.0 - 6.0 3.5 - 5.0
785
2.5 - 5.0 2.5 - 5.0 3.0 - 5.5 3.5 - 6.0 3.5 - 6.5 4.0 - 7.0 4.5 - 7.5338 405 473 540 506l/s 591 674 709 810 942
9453.0 - 6.0 3.0 - 6.0 3.5 - 6.5 4.0 - 7.0 4.0 - 7.5 4.5 - 8.0 5.0 - 9.0
25
2.0 - 4.0
303.5 - 7.5
354.5 - 9.0
405.0 - 10.5
406.0 - 12.5
2.5 - 5.0
2.5 - 5..0
3.5 - 6.5
4.0 - 7.5
4.5 - 9.0
25
2.5 - 4.5
304.0 - 8.0
355.0 - 9.5
405.5 - 11.0
406.5 - 13.0
3.0 - 5.5
3.0 - 5.5
4.0 - 7.0
4.5 - 8.0
5.0 - 9.5
25
2.5 - 4.5
304.0 - 8.5
355.0 - 10.0
405.5 - 11.5
456.5 - 14.0
3.0 - 5.5
3.0 - 5.5
4.0 - 7.5
4.5 - 8.5
5.0 - 10.01103
600x
450
600x
525
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
L
L
S
S = Short side throwL = Long side throw
Waterloo
Waterloo 2.0 31 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 41
Selection ExampleDF41/300x300Air flow rate 225 l/sThrow 2.0 - 4.5mTotal Pressure Loss 23 PaNoise level NC25
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Performance Table
-1.0 - 1.5
34
-1.0 - 2.0
76
-1.5 - 2.5
135
-2.0 - 3.5
211
222.0 - 4.0
304
150x
150
225x
225
300x
300
DF DE
9
Total pressuredrop (Pa)
Lw
l/sMin - Max (m)
-1.0 - 2.0
45
-1.5 - 2.5
101
202.0 - 3.5
180
242.0 - 4.5
282
282.5 - 5.0
40515
Lw
l/sMin - Max (m)
-1.5 - 2.5
56
-2.0 - 3.5
127
252.0 - 4.5
225
292.5 - 5.5
352
333.5 - 6.5
50623
Lw
l/sMin - Max (m)
-1.5 - 3.0
68
232.0 - 4.0
152
292.5 - 5.0
270
333.5 - 6.5
422
364.0 - 8.0
60833
Lw
l/sMin - Max (m)
192.0 - 3.5
79
272.0 - 4.5
177
323.0 - 6.0
315
374.0 - 7.5
492
404.5 - 9.0
70943
Lw
l/sMin - Max (m)
375x
375
450x
450
SupplyCore 41
252.5 - 5.0
413
302.5 - 5.5
540
525x
525
600x
600
303.0 - 6.0
551
353.5 - 7.0
720
354.0 - 8.0
689
404.5 - 8.5
900
404.5 - 9.0
827
455.0 - 10.5
1080
455.0 - 10.5
964
456.0 - 12.0
1260
Waterloo
C D E
F G H J K
B
Blanking Plates
Waterloo 2.0 32 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDF DE core 42
Selection ExampleDF42/450x150Air flow rate 169 l/sShort side throw 1.0 - 2.5mLong side throw 2.5 - 5.0mTotal Pressure Loss 23 PaNoise level NC25
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15Performance Table
-
1.0 - 1.551
-
1.0 - 1.567
-
1.0 - 1.5101
-
1.5 - 2.0118
-
2.0 - 2.5135
225x
150
300x
150
450x
150
DF DE
9
Total pressuredrop (Pa)
Lw
l/s
-1.0 - 2.5
68
-1.5 - 3.5
90
-2.0 - 4.0
135
202.5 - 4.5
158
203.0 - 5.0
180
15
Lw
l/s
-1.5 - 3.5
-2.0 - 3.5
252.5 - 5.0
253.0 - 5.5
253.5 - 6.0
23
Lw
-2.0 - 3.5
252.0 - 4.5
252.5 - 6.0
303.0 - 6.5
303.5 - 7.0
33
Lw
252.0 - 4.5
118
252.5 - 5.0
158
303.5 - 6.5
236
-
1.0 - 1.584
375x
150
-2.0 - 3.5
113
202.0 - 4.5
242.5 - 5.0
303.0 - 6.0
197
304.0 - 7.0
275
354.5 - 7.5
315
43
Lw
l/s
525x
150
600x
150
-
1.0 - 2.0101
-
1.0 - 2.0127
-2.0 - 3.5
135
202.0 - 3.5
169
252.0 - 4.5
252.0 - 1.5
252.5 - 5.0
303.0 - 6.5
352.5 - 6.0
236
353.5 - 7.5
295
300x
225
375x
225
-
1.0 - 2.0153
252.5 - 4.0
203
302.5 - 5.0
353.5 - 7.0
354.0 - 8.0
354
450x
225
-
1.0 - 2.0177
-
1.5 - 2.51.0 - 2.0 1.0 - 2.5 1.5 - 3.5 2.0 - 4.0 2.5 - 4.51.5 - 3.0 1.0 - 2.5 1.5 - 3.0 2.0 - 3.5 2.0 - 4.0 2.5 - 4.5
203
252.5 - 5.0
237
253.0 - 5.5
1.0 - 2.0 1.0 - 2.0 1.0 - 2.0 1.5 - 2.5 2.0 - 3.01.0 - 2.0 1.0 - 2.5 1.0 - 2.5 1.0 - 2.5 1.0 - 2.5 1.5 - 3.0271
303.0 - 6.0
303.5 - 6.5
1.0 - 2.5 1.0 - 2.5 1.0 - 2.5 1.5 - 3.0 2.0 - 3.51.0 - 2.5 2.0 - 3.5 2.0 - 3.5 2.0 - 3.5 2.0 - 3.5 2.5 - 4.084 113 169 197 225l/s 140 169 211 253 295 337
354.0 - 7.5
354.5 - 8.0
1.5 - 3.0 1.5 - 3.0 1.5 - 3.0 2.0 - 3.5 2.5 - 4.01.5 - 3.0 2.0 - 4.0 2.0 - 4.0 2.0 - 4.0 2.0 - 4.0 2.5 - 4.5101 135 202 236 270l/s 169 202 253 303 354 404
354.5 - 8.5
413
355.0 - 9.0
2.0 - 3.5 2.0 - 3.5 2.0 - 3.52.0 - 3.5 2.5 - 4.0 3.0 - 4.5 2.0 - 4.5 2.0 - 4.5 2.0 - 4.5 2.0 - 4.5 2.5 - 5.0472
525x
225
600x
225
SupplyCore 42
-
1.0 - 2.5169
-
1.0 - 2.5203
-
1.0 - 2.5236
20
1.5 - 3.0271
20
2.0 - 3.5253
375x
300
450x
300
525x
300
9
Total pressuredrop (Pa)
Lw
l/s
252.0 - 4.5
225
252.5 - 5.0
270
252.5 - 6.0
315
253.0 - 6.5
360
252.5 - 5.0
338
15
Lw
l/s
302.5 - 5.0
281
303.0 - 6.0
338
303.5 - 6.5
394
304.0 - 7.0
441
303.5 - 6.5
422
23
Lw
l/s
303.5 - 6.5
354.0 - 8.0
354.0 - 8.0
354.5 - 8.5
354.0 - 7.5
33
Lw
354.0 - 7.5
394
354.5 - 8.0
473
405.0 - 9.5
551
404.5 - 8.5
630
404.5 - 9.0
590
43
Lw
l/s
600x
300
450x
375
20
2.0 - 3.5296
25
2.5 - 4.0339
302.5 - 6.0
394
303.0 - 6.5
450
353.5 - 7.5
492
354.0 - 8.0
562
354.5 - 8.5
405.0 - 9.0
405.0 - 10.5
689
405.5 - 11.0
788
525x
375
600x
375354
472
591
827
525x
450406
2.0 - 3.5 2.0 - 3.5 2.0 - 4.5 2.5 - 5.0 2.0 - 4.0 2.0 - 4.5 2.5 - 5.0
474
5402.0 - 3.5 2.0 - 3.5 2.0 - 3.5 2.5 - 4.0 2.0 - 4.5 2.0 - 4.5 2.5 - 5.0
629
6752.0 - 4.0 2.0 - 4.5 2.0 - 4.5 2.5 - 5.0 2.5 - 5.5 2.5 - 5.5 3.0 - 6.0
785
2.5 - 5.0 2.5 - 5.0 2.5 - 5.0 3.0 - 5.5 3.5 - 6.5 3.5 - 6.5 4.0 - 7.0338 405 473 540 506l/s 591 674 709 810 942
9453.0 - 6.0 3.0 - 6.0 3.0 - 6.0 3.5 - 5.5 4.0 - 7.5 4.0 - 7.5 4.5 - 8.0
25
2.0 - 4.0
303.0 - 6.0
354.0 - 7.5
404.5 - 9.0
405.0 - 10.5
2.5 - 5.0
2.5 - 5.0
3.5 - 6.5
4.0 - 8.0
4.5 - 9.0
25
2.0 - 4.0
303.5 - 7.0
354.5 - 8.5
405.0 - 10.0
456.0 - 12.0
2.5 - 5.0
2.5 - 5.0
3.5 - 6.5
4.0 - 8.0
4.5 - 9.0
25
2.5 - 4.5
54.0 - 7.5
405.0 - 9.0
405.5 - 10.5
456.5 - 12.5
3.0 - 5.5
3.0 - 5.5
4.0 - 7.0
4.5 - 8.5
5.0 - 9.51103
600x
450
600x
525
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
S Min - Max (m)L Min - Max (m)
L
L
S S
S = Short side throwL = Long side throw
Waterloo
Waterloo 2.0 33 Tel: +44 (0) 1622 711511
Louvred Face DiffusersDFA core 41
-0.5 - 1.0
34
-0.5 - 1.5
76
-1.5 - 2.5
135
-1.5 - 2.5
211
150x
150
225x
225
300x
300
DFA41
Lw
l/s
11 11 11 11Pa
21 21 21 21Pa
32 32 32 32Pa
47 47 47 47Pa
65 65 65 65Pa
Min - Max (m)
-0.5 - 1.5
45
-1.0 - 2.0
101
201.5 - 3.0
180
251.5 - 3.0
282
Lw
l/sMin - Max (m)
201.0 - 2.0
56
221.5 - 2.5
127
261.5 - 3.0
225
312.0 - 4.0
352
Lw
l/sMin - Max (m)
271.0 - 2.5
68
271.5 - 3.0
152
332.0 - 4.0
270
372.5 - 5.0
422
Lw
l/sMin - Max (m)
321.5 - 2.5
79
331.5 - 3.0
177
382.5 - 4.5
315
413.0 - 5.5
492
Lw
l/sMin - Max (m)
375x
375
Horizontal diffusion(Cones fully lowered)
∆t = 10˚C cooling
-2.034
-2.376
-2.4135
202.7211
150x
150
225x
225
300x
300
DFA41
Lw
l/s
21 17 17 17Pa
37 30 30 30Pa
60 47 47 47Pa
87 67 67 67Pa
122 90 90 90Pa
Projection
Projection
Projection
Projection
Projection
222.745
213.3101
233.6180
273.9282
Lw
l/s
283.456
284.1127
314.8225
345.1352
Lw
l/s
354.168
344.7152
375.8270
406.2422
Lw
l/s
104.879
405.4177
436.6315
447.3492
Lw
l/s
375x
375
-6.334
-9.476
-12.5135
2015.6211
150x
150
225x
225
300x
300
DFA41
Lw
l/s
21 17 17 17Pa
37 30 30 30Pa
60 47 47 47Pa
87 67 67 67Pa
122 90 90 90Pa
Projection
Projection
Projection
Projection
Projection
228.345
2112.5101
2316.7180
2720.8282
Lw
l/s
2810.756
2816.1127
3121.5225
3426.8352
Lw
l/s
3513.668
3420.5152
37-
270
40-
422
Lw
l/s
4015.079
40-
177
43-
315
44-
492
Lw
l/s
375x
375
Heating vertical projection(Cones fully raised)
∆t = 10˚C heating (correct for other temp.)
Isothermal vertical projection(Cones fully raised)
Selection ExampleDFA41/300x300Horizontal DiffusionAir flow rate 225 l/sThrow 1.5 - 3.0mTotal Pressure Loss 21 PaNoise level NC20
Selection CriteriaCeiling height 2.7 mTemperature differential -10KRadius of diffusion - Minimum and maximumthrow which results in an average airvelocity within the occupied zone of0.25m/s and 0.10m/s respectively.NC level = peak level on noise criteriacurves based on Sound Power Level less8dB room absorption
Exhaust & OBSS corrections
Supply diffuser + 0dB Pa x 1.0Supply diffuser + OBSS + 3dB Pa x 1.0Exhaust diffuser + 3dB Pa x 1.1Exhaust diffuser + OBSS +13dB Pa x 1.15
Terminal Velocities For Isothermal Vertical Projection
Vt (m/s) 0.25 0.40 0.60Factor 1.00 0.65 0.40
Temperature Differentials For Heating Vertical Projection
∆t (°C) 5 10 15 20 25 30Factor 1.5 1 0.85 0.7 0.6 0.5
Performance Tables
Waterloo
100
H
WL
Waterloo 2.0 34 Tel: +44 (0) 1622 711511
Louvred Face DiffusersPlenum Chambers and Neck Reducers
IntroductionCorrect selection and sizing of distribution plenumchambers and neck reducers is critical becauseterminal air resistance is very low relative to thedistribution ductwork resistance. It is thereforerecommended that whenever possible terminalsare served by low velocity stub ducts from branchducting systems fitted with correct balancing controls.Where it is necessary to specify and use plenums agenerous allowance for commissioned noise generationshould be made. A similar effect results from use ofneck reducers with circular duct connections becausethe reduced duct area will cause generally highervelocities and hence increased risk of noise generation.
Product DescriptionPBD Plenum chamberNR-D Top entry neck reducer
Features• Plated steel with stitched seam joints.• Plenums are available with circular, square or
rectangular spigots in either top or side entryapplications
• Neck reducers are available with circular, square orrectangular spigots in top entry only
InstallationThe plenum boxes and neck reducers are supported by4 drop rods through a locating hole positioned neareach corner.
When ordering plenum chambers please specify lengthwidth & height, spigot size and position (top or sideentry) and control options. Please note that the plenumheight should in general be 100mm greater that thespigot diameter (side entry applications).
Neck reducers are available as standard in sizes up to1200 x 600. The high profile is designed toaccommodate an opposed blade damper.
Plenum chambersPressure loss: multiply diffuser pressure loss by 1.25NR level: based on peak sound power level less 8dBroom absorption allowanceNote: Actual spigot size = nominal - 3mm
Neck reducersPressure loss and noise levels should be based on thespigot air velocity and the nominal diffuser size, ie. if a450 sq neck diffuser handling 200 l/s is fitted with aneck reducer having a 315Ø spigot, the inlet airvelocity is approximately 2.5 m/s. Referring to theselection tables, at the equivalent air velocity throughthe diffuser neck the noise level would be NC33 andthe pressure loss 23Pa.Throw: use catalogue data providing that the ratio ofdiffuser to neck size remains less than 1.5:1.
Diffuser Nominal Diffuser + Plenum + Open OBSS ActualNeck Spigot Maximum flow rate to achieve PlenumSize Size stated noise levels (l/s) Dimensions(mm) (mm) NR25 NR30 NR35 NR40 NR45 L W H
150x150 150Ø 45 55 65 80 95 150 150 250
225x225 200Ø 75 100 125 150 175 225 225 300225x150 200Ø 60 80 100 115 130 225 150 300
300x300 250Ø 140 170 210 260 310 300 300 350300x225 250Ø 90 130 170 210 240 300 225 350300x150 250Ø 85 110 135 160 185 300 150 350
375x375 350Ø 210 240 290 355 430 375 375 450375x300 350Ø 160 210 260 330 400 375 375 450375x225 350Ø 125 170 215 270 330 375 375 450375x150 350Ø 120 140 170 210 260 375 375 450
450x450 400Ø 230 310 400 500 650 450 450 500450x375 400Ø 220 280 355 450 590 450 450 500450x300 400Ø 190 260 330 410 490 450 450 500
525x525 500Ø 290 410 540 670 840 525 525 600525x450 500Ø 280 380 490 610 810 525 525 600525x375 500Ø 275 360 460 580 690 525 525 600525x300 500Ø 235 315 380 480 590 525 525 600
600x600 500Ø 530 620 700 850 1020 600 600 600600x450 500Ø 380 450 540 660 850 600 600 600600x300 500Ø 350 410 460 560 680 600 600 600
Waterloo
PBD Side entry plenum box
NR-D Neck reducer
Waterloo 2.0 35 Tel: +44 (0) 1622 711511
Louvred Face DiffusersCore Configuration Summary
Waterloo
Waterloo 2.0 36 Tel: +44 (0) 1622 711511
Aircell DiffusersM300 M450 M500 M600 M625
Order Example Aircell M300/O300/P300/F300/BM300TypeDamperPlenumFixing KitBlanking Kit
IntroductionThe Waterloo Aircell M series presents all the costand design advantages of the 2000 series withthe visual appeal of clean, unbroken lines on thetraditional multicone design.The diffusers are available in a range of 5 sizesto integrate with standard 300mm and 600mmceilings and the 500mm and 625mm Europeansystems.
Product DescriptionM300 300 sq diffuserM450 450 sq diffuserM500 500 sq diffuserM600 600 sq diffuserM625 625 sq diffuserO Black polymer opposed blade damperP Black polymer plenum boxF Fixing kitBM Blanking kitR600 Reducer with 312Ø spigot
Features• Contemporary style designed for visual
integration with luminaires and other ceilingelements
• Ease of installation with concealed, single pointfixing into P series plenum or rigid ducting
• Full range of integrated accessories availableincluding directional or core blanking kits,universal plenums and opposed blade dampers
FinishesDiffusers are self-coloured whiteDamper and plenum are self-coloured black
WeightsM300 0.6 kgM450 1.4 kgM500 1.6 kgM600 2.6 kgM625 2.8 kg
AuthorityPatents: 2221530, 2223840, 8818337 otherspendingRegistered Designs: 1052716, 106216Fire Rating: BS476 Pt 7 Class 0. BS476 Pt 5,P Rating. BS 2782 Method 508A, Zero Rate ofBurn.
Performance tested to BS4773 1991, ISO 5219.
Maximum supply air temperature mustnot exceed 50°C.
Aircell M A B C D E FM300 6 230 36 56 296 235M450 6 307 36 56 446 375M500 6 307 36 56 496 375M600 6 456 36 56 596 525M625 6 456 36 56 621 525
Waterloo
Waterloo 2.0 37 Tel: +44 (0) 1622 711511
Aircell DiffusersM300 M450 M500 M600 M625
Extract Extract Extract
3333
3643
2315
2823
2143
-23
-9
1.0
-331.6
-151.2
1.5
20341.7
-331.6
M300 M450M500
Supply Supply
2.0
2.0-9
1.5
2.2
2.5
3.03636
3947
2617
3125
2110
2925
3535
-8
2315
1.3
2.0
2.3
2.7
3333
-9
-12
1.5-7
1.3
1.7
2.5
2823
-9
2315
1.5
2.0
2.2
33332.5
36433.0
259
3215
3723
M600M625 M300 M450
M500M600M625
Supply
2.0
2.5
3.5
M
315
270
225
180
135
405
40334.0
44434.5
2810
3517
4025
4336
4747
227
2812
3215
1.8
2.2
2.5
39253.6
42384.3
2712
3517
3826
2.2
2.8
3.7
41354.1
259
3826
2.0
3.7
45444.6
506
608
79
68
56
LwPs34T
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
LwPsT
709LwPsT
-151.2
2447
-25
-10
2136
-17
-231.5
45
I/s
Selection ExampleAircell M450Air Flow Rate 180 l/sThrow 2.0 mStatic Pressure Loss 15 PaNoise level NR23
Selection CriteriaCeiling Height 2.7 mTemperature Differential -10KAverage room velocity vr 0.25 m/sNR level = peak level on noise rating curvesbased on Sound Power Level less8dB room absorption
All performance data includes theplenum box
Performance Table
4 way 3 way 2 way 2 way 1 way
Blanking arrangements
Waterloo
Note: Sizes are overall
Copyright:Waterloo Air Products2005
Waterloo 2.0 38 Tel: +44 (0) 1622 711511
Aircell Diffusers2300 2600
IntroductionThe Waterloo Aircell 2000 series presents acontemporary diffuser style combining highperformance and robust construction with thesignificant cost advantage of injection mouldedengineering polymers.The diffusers are available in 2 sizes to integratewith standard 300mm or 600mm lay-in orconcealed ‘T’ ceiling systems.
Product Description2300 300 sq diffuser2600 600 sq diffuserO Black polymer opposed blade damperP Black polymer plenum boxF Fixing kitB Blanking kit
Features• Contemporary style designed for visual
integration with luminaires and other ceilingelements
• Ease of installation with concealed, single pointfixing into P series plenum or rigid ducting
• Full range of integrated accessories availableincluding directional or core blanking kits,universal plenums and opposed blade dampers
FinishesDiffusers are self-coloured whiteDamper and plenum are self-coloured black
Weights2300 0.6 kg2600 3.2 kg
AuthorityPatents: 2221530, 2223840, 8818337 others
pendingRegistered Designs: 1052716, 106216Fire Rating: BS476 Pt 7 Class 0. BS476 Pt 5,
P Rating. BS 2782 Method 508A,Zero Rate of Burn.
Performance tested to BS4773 1991, ISO 5219.
Maximum supply air temperature mustnot exceed 50°C.
Order ExampleAircell 2300/O300/P300/F300/B300
TypeDamperPlenumFixing kitBlanking kit
Aircell 2000 A B C D E F2300 3 229 41 53 296 2692600 6 459 31 56 596 546
Waterloo
Waterloo 2.0 39 Tel: +44 (0) 1622 711511
Aircell Diffusers2300 2600
Selection ExampleAircell 2300-4Air Flow Rate 75 l/sThrow 1.1 mStatic Pressure Loss 17 PaNoise level NR22
Selection CriteriaCeiling Height 2.7 mTemperature Differential -10KAverage room velocity vr 0.25 m/sNR level = peak level on noise rating curvesbased on Sound Power Level less8dB room absorption
All performance data includesthe plenum box
4 way 3 way 2 way 2 way 1 way
Blanking arrangements
2000 Supply
Air Volume 2300l/s m3/h 4 way 3 way 2 way 1 way
25 90T (m) 0.6 0.7 0.8 1.7
Ps 2 5 8 28Lw - - - 30
50 180T (m) 0.8 1.4 1.7
Ps 8 17 28Lw - 20 30
75 270T (m) 1.1 1.7 2.3
Ps 17 28 60Lw 22 30 41
100 360T (m) 1.7 2.2
Ps 28 50Lw 30 38
125 450T (m) 2.0 2.5
Ps 44 66Lw 36 43
150 540T (m) 2.3
Ps 60Lw 41
200 720T (m)
PsLw
250 900T (m)
PsLw
300 1080T (m)
PsLw
350 1260T (m)
PsLw
400 1440T (m)
PsLw
Supply
2600
4 way 3 way 2 way 1 way
0.910201.82231
0.9 2.510 4020 38
0.3 0.7 1.44 8 15- - 26
0.5 0.9 1.86 10 22- 20 31
0.9 1.6 2.510 18 4020 28 381.4 2.115 2826 331.8 2.522 4031 382.230352.54038
Exhaust
2300 2600
4-
1519
3029
5035
7540
100 645 -
12-
2020
2927
4132
5437
Waterloo
Copyright:Waterloo Air Products2005
Note: Sizes are overall
Performance Table
Waterloo 2.0 40 Tel: +44 (0) 1622 711511
PerformanceThe unique integrated design of the plenum, damper anddiffuser assembly has been specifically developed topromote smooth flow lines, ensuring an exceptionalaerodynamic and acoustic performance.
Aircell products can be used in any air distributionsystems where temperatures do not exceed 50° C.
The components have been tested to BS4773 Parts 1 & 2to provide comprehensive, easy to use selection data forall installation options.
Opposed Blade Damper Type ‘O’The ‘O’ series opposed blade damper is designed tointegrate with the plenum and diffuser range to provide asimple means of flow regulation from the diffuser face.
The unit is designed to snap fit into the universal plenum,or alternatively can be easily screw or rivet fixed intosteel ducting using the inbuilt mounting lugs.
Manufactured in black engineering grade polymer, thedamper is inherently smooth and positive in operation.
WeightsO300 0.5 kg
O450 1.0 kgO600 2.2 kg
Plenum Type ‘P’The ‘P’ series plenum is aerodynamically profiled toprovide ideal flow conditions with either top or side entryduct arrangements.
Manufactured in black engineering grade polymer, thedesign incorporates features such as internal guide vanesto reduce air turbulence, and snap-in locks to retain theopposed blade damper and diffuser mounting bar.
The plenum can be fixed to the ceiling grid or suspendedby drop rods from the slab. Either fixing method iscarried out using patented mounting brackets whichsimply slide into the plenum retaining slots.
WeightsP300 0.7 kg
P450 1.0 kgP600 1.7 kg
Neck Reducer R600The R600 snap-fit neck reducer is available as an optionto convert the P600 plenum spigot from 397Ø to 312Ø.
A
B
B
ØE
50
7 7
50
Ø312
Do/s stack
Ø400
C
Type 'O' damper
Type 'P' plenum
R600 neck reducer
Model A B C D EO300 41 215 - - -O450 41 290O600 41 440 - - -P300 - - 245 224 197P450 - - 277 299 247P600 - - 366 449 397
Aircell DiffusersControls and Fixing Options
Waterloo
Waterloo 2.0 41 Tel: +44 (0) 1622 711511
Aircell DiffusersInstallation and Specification
Aircell diffuser
InstallationParticular attention has been paid to theinstallation method to minimise site fixing time.The plenum is easily installed using the slide-inbrackets as support legs from above the ceiling‘T’, or with drop rods from the slab. The damperand diffuser support bar can then be clipped inplace, with the diffuser finally being secured bythe single centre fixing screw.
SpecificationCeiling diffusers shall be Aircell 2000 seriesmanufactured from injection moulded engineeringpolymer, in self-coloured white as standard.Overall diffuser size shall be nominally 300 or600mm to suit standard ceiling grids.
A captive centre line polymer fixing bolt andmetal fixing bracket kit shall be provided.
Directional blanking is obtained with snap-inplates to provide 1, 2 or 3 way air patterns orreduced area blanking.
Opposed blade dampers (type ‘O’) ismanufactured from injection moulded engineeringpolymer in self-coloured black as standard,operable through the diffuser face.
Plenum box (type ‘P’) is manufactured frominjection moulded engineering polymer of auniversal design and in self-coloured black,incorporating guide vanes and bracket locationslots.
Z
Y
X min
WDuct or Plenum
Diffuser
Damper
W = Damper depthX = Ceiling opening (+5 -0) Y = Face of T bar to underside of Duct or Plenum (+0 -10)Z = Underside of duct to underside of damper
Model W X Y Z2300 45 269 41 882600 45 546 41 88
Universal plenumtype P
Face operated opposedblade damper type O
Diffuser fixing brackettype F - for fixing troplenum or duct
Captive fixing bolt
Removable core
Waterloo
Note:Specially designed clipsmean that you can use atype ‘O’ damper with adiffuser without auniversal Plenum.
Waterloo 2.0 42 Tel: +44 (0) 1622 711511
Laminar Flow DiffusersLFF LFMIntroductionLF diffusers have been designed for use in clean rooms,laboratories, operating theatres, or other applicationswhere critical control of room air movement is necessary.They are also suitable for less critical applications suchas animal rooms or kitchens where a vertical flow patternmay be required.The laminar air pattern is achieved by use of a primarybaffle within the plenum chamber and a low free areaperforated discharge plate at the face of the diffuser.The diffusers are available with either a flanged framestyle (type LFF) to suit conventional exposed or concealed‘T’ ceilings, or, with a flangeless frame (type LFM)suitable for modular panel constructions.The LFM units can be supplied with a perimeter trim stripto suit the overall dimensions of the panel assembly.Support brackets and mounting plates can also bemanufactured to fit suspended light bases used inoperating theatres.The units are available in three standard sizes withoptions for top, side, or end entry inlet spigots and screwoperated louvre dampers.
DescriptionLF laminar flow diffusers are constructed from aluminiumextruded frames and assembled using welding andsoldering techniques to form a robust construction.The perforated aluminium face plate can be easilyremoved for cleaning using the hook tool provided.Plenum chambers are manufactured from galvanisedsheet steel, with all exposed edges and spot weldsprotected.
Product DescriptionLFF Laminar flow panel with flanged frameLFM Laminar flow panel with modular flangeless frame LD Louvre damper
Features• Two frame styles and sizes to suit 600mm and I200mm
‘T’ ceilings or modular panel assemblies.• Side, top, or end entry spigot connections with
optional spigot mounted louvre damper.• Pivoting, removable face plate for easy maintenance.• Easy clean aluminium face plate and frame with
durable polyester powder coating.
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Order Example
LFM/900x600/TE/PPM9010/LDTypeNominal WidthNominal HeightSpigot LocationFinishDamper (if required)
Type Unit size W x H ØD A
LFM 600 x 600 600 x 600 197 120LFM 900 x 600 900 x 600 197 120LFM 1200 x 600 1200 x 600 312 165LFF 600 x 600 598 x 598 197 120LFF 1200 x 600 1198 x 598 312 165
Waterloo
Free Area
23%
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
7075
A
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
Waterloo 2.0 43 Tel: +44 (0) 1622 711511
Laminar Flow DiffusersLFF LFM
Performance Tables
Selection CriteriaLaminar flow diffuser airstreams arecharacterised by the tendency to reduce insectional area from the point of discharge,particularly with high cooling differentials.Although this produces a slight initial increase inthe core velocity, friction between the airstreamboundary and the static room air offsets this, thenet result being to maintain a near constant airvelocity at distances up to 2.5m from the face.This characteristic is reflected in the datapresentation of tables 1 and 2 which giveinformation on the face discharge velocity andthe average airstream velocity over thisdistance. The discharge velocity is based on anaverage number of vane anemometer readings
at the face plate, whilst the airstream velocity isderived from time averaged readings with a 15probe array at distances of 1m and 2m fromthe face. In the case of the latter, data is givenfor cooling differentials of 3°C, 5°C and 10°C.The temperature diffusion data presented intable 3 can be used to determine theapproximate airstream temperature by addingthe indicated temperature rise to the dischargeair temperature.The acoustic data shown in table 5 is presentedin terms of sound power based NR levels. Toobtain the resulting NRlp level in the occupiedzone, room absorption factors should beapplied as appropriate to the installationconditions.
D
Face dischargevelocity (table 1)
Reduction in airstreamsection area increasesvelocity
Near constantairstream velocityup to 2.5m fromdiffuser face(table 2)
Waterloo
Table 1. Average Face Air Velocity
LFM LFF Air Flow Rate
Unit size
m3/h 72 108 144 180 216 288 360 432 504 576 648 720l/s 20 30 40 50 60 80 100 120 140 160 180 200
600x600 0.05 0.10 0.13 0.17 0.21 0.30 0.37900x600 0.05 0.07 0.10 0.13 0.18 0.24 0.301200x600 0.05 0.06 0.11 0.15 0.19 0.24 0.28 0.32 0.37
Table 2. Average Airstream VelocityLFM LFF Air Flow Rate
Unit size
m3/h 72 108 144 180 216 288 360 432 504 576 648 720l/s 20 30 40 50 60 80 100 120 140 160 180 200DT
600x600-3 °C 0.09 0.11 0.13 0.16 0.20 0.26 0.33-5 °C 0.09 0.12 0.15 0.20 0.25 0.31 0.36-10 °C 0.10 0.13 0.15 0.25 0.32 0.41 0.45
900x600-3 °C 0.07 0.09 0.11 0.12 0.14 0.16 0.22 0.25-5 °C 0.07 0.10 0.13 0.17 0.20 0.25 0.29 0.32-10 °C 0.08 0.11 0.15 0.20 0.24 0.31 0.36 0.40
1200x600-3 °C 0.05 0.07 0.09 0.10 0.14 0.22 0.26 0.29 0.31-5 °C 0.05 0.07 0.10 0.12 0.16 0.25 0.30 0.35 0.39-10 °C 0.05 0.10 0.14 0.23 0.30 0.38 0.42 0.45 0.47
Waterloo 2.0 44 Tel: +44 (0) 1622 711511
Laminar Flow DiffusersLFF LFM
Performance Tables
Selection ExampleDiffuser selection criteria will be dependent on theapplication, but as a general guide most sedentaryoccupants would be tolerant of airstream velocitiesup to 0.25m/s if the air temperature is 1-2°C belowthat in the room. In applications where there areconcentrated heat sources or where the occupantsare mostly transitory, this can generally beincreased to 0.35 - 0.5m/s.As an example, consider the use of a 1200 x 600diffuser in an operating theatre where the coolingdifferential is to be 5°C with a supply airtemperature of 17°C.
Reference to table 2 shows that the maximum airflow rate to achieve an average airstream velocityof 0.25m/s would be 140l/s.
Airstream temperatures at distances of 1m and 2mfrom the diffuser face can be found from table 3; inthis case, at 140l/s, the supply air temperature willrise by 3.5°C and 4.5°C respectively, givingmoving air temperatures of 20.5°C and 21.5°C atthe two heights.The diffuser noise level can be found from table 5,which, assuming a fully open damper, would beless than NRlw20 at 140l/s.
Waterloo
Table 3. Airstream Temperature Rise (°C)
LFM LFF Air Flow Rate
Unit size DT
m3/h 72 108 144 180 216 288 360 432 504 576 648 720l/s 20 30 40 50 60 80 100 120 140 160 180 200D
600x
600
-3°C1m 2.5 2.5 2.5 2.5 2.0 2.0 1.02m 3.0 3.0 3.0 3.0 2.5 2.5 2.0
-5°C1m 4.5 4.5 4.5 4.0 3.5 3.0 2.52m 5.0 5.0 5.0 4.5 4.0 3.5 3.0
-10°C1m 8.5 8.0 8.0 8.0 7.5 6.5 6.02m 9.5 9.5 9.5 9.0 8.5 8.0 7.0
900x
600
-3°C1m 3.0 3.0 3.0 3.0 2.5 2.5 2.0 1.52m 3.0 3.0 3.0 3.0 3.0 2.5 2.5 2.0
-5°C1m 5.0 4.5 4.5 4.5 4.0 3.5 3.0 2.52m 5.0 5.0 5.0 5.0 4.5 4.5 4.0 3.5
-10°C1m 10.0 9.5 9.5 9.0 8.5 8.0 7.0 5.52m 10.0 10.0 9.5 9.5 9.0 8.5 8.0 7.0
1200x
600
-3°C1m 3.0 3.0 3.0 2.5 2.5 2.0 2.0 1.5 1.02m 3.0 3.0 2.5 2.5 2.5 2.5 2.5 2.0 1.5
-5°C1m 4.5 4.5 4.5 4.0 4.0 3.5 3.0 2.5 2.02m 5.0 5.0 5.0 5.0 4.5 4.5 4.0 3.0 2.5
-10°C1m 10.0 10.0 10.0 9.5 9.0 8.0 7.5 6.5 5.52m 10.0 10.0 10.0 9.5 9.5 9.0 8.5 8.0 7.0
Table 4. Diffuser Static Pressure Loss (Pa) (open damper)
LFM LFF Air Flow Rate
Unit sizem3/h 72 108 144 180 216 288 360 432 504 576 648 720l/s 20 30 40 50 60 80 100 120 140 160 180 200
600x600 1 1 1 2 2 4 5900x600 1 1 1 2 2 4 5 71200x600 1 1 1 2 2 3 3 4 4
Table 5. Acoustic Data (Noise Level) (NR) (open damper)
LFM LFF Air Flow Rate
Unit sizem3/h 72 108 144 180 216 288 360 432 504 576 648 720l/s 20 30 40 50 60 80 100 120 140 160 180 200
600x600 <20 20 24 28900x600 <20 23 27 301200x600 <20 <20
Waterloo 2.0 45 Tel: +44 (0) 1622 711511
Laminar Flow DiffusersLFF LFM
FACE PLATE
LFM - Flangeless frame
LFF - Flanged frame
MODULAR ASSEMBLYPRE-DRILLED FRAMES FOR
SIDE ENTRY SPIGOTSOPTIONAL TOP, END OR
OPTIONAL LOUVRE DAMPER
Ø8mm HOLESFOR DROP SUPPORT
Ø8mm HOLESFOR DROP SUPPORT
REMOVAL TOOL
LINK PLATES
Waterloo
Waterloo 2.0 46 Tel: +44 (0) 1622 711511
IntroductionThe Waterloo CPD range of diffusers have beendesigned for use in commercial applications andare particularly suited to projects with high airchange rates and high cooling differentials.CPD diffusers are suitable for installation in 300,600 and 1200mm tile module systems and therange includes square and rectangular types.The aluminium face plate may be pivoted downand removed to ease installation, commissioningand maintenance and is held closed by springclips.The diffusers are constructed from aluminiumextruded frames and perforated face plates withplated steel, square, rectangular and circularconnections suitable for top entry ducts.
Product DescriptionCPD2 2 way perforated face supply diffuserCPD3 3 way perforated face supply diffuserCPD4 4 way perforated face supply diffuserCPDE Exhaust air perforated face diffuserOBSS Opposed blade damper for square /
rectangular connectionsLD Louvre damper for circular connections
Features• Integrate with 300, 600 and 1200mm tile sizes
• All aluminium face construction
• Pivoting, removable face plate
• Range of four sizes
• High air handling capacity
• Supply or exhaust diffusers visually compatible
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Type Unit size W x H ØD A x B Weight (kg)
CPD 300 x 300 295 x 295 147 147 x 147 2.0CPD 600 x 600 595 x 595 297 297 x 297 3.4CPD 600 x 300 595 x 295 — 297 x 147 2.8CPD 1200 x 600 1195 x 595 — 597 x 297 6.5CPDE 300 x 300 295 x 295 — 147 x 147 2.0CPDE 600 x 600 595 x 595 — 447 x 447 3.4CPDE 600 x 300 595 x 295 — 447 x 147 2.8CPDE 1200 x 600 1195 x 595 — 597 x 297 6.5
A x B o/snominal duct size
CPD/OBSS
H - 52
ØD o/snominal duct size
CPD/LD
Ceiling opening = H - 20
132
72
W o/a
W - 52
H o
/a
H -
52
5
Perforated Face DiffusersCPD CPDE
Waterloo
Free Area
54%
Order Example
CPD/4/300x300/150 DIA/PPM9010/LDTypePatternNominal WidthNominal HeightSpigot SizeFinishDamper
Waterloo 2.0 47 Tel: +44 (0) 1622 711511
Perforated Face DiffusersCPD CPDE
Performance Tables
Selection ExampleCPD4/300x300/150Air Flow Rate 88 l/sThrow 0.8 - 1.9mStatic Pressure Loss 7 PaNoise Level NR 33
Selection CriteriaCeiling height up to 2.8 mRadius of diffusion is based on terminalvelocities of 0.75 m/s (minimum) and0.10 m/s (maximum) to achieve meanroom air velocities of 0.25 m/s and0.10 m/s respectively.NR level is based on diffuser soundpower level less 8dB room absorption. Square Neck Supply Diffuser Corrections
CPD/300x300/150 x 150 as 150Ø - 6dB Pa x 0.65CPD/600x600/300 x 300 as 300Ø - 6dB Pa x 0.65
Waterloo
CPD 4 way 3 way
Sizes 300x300 600x600 600x300 1200x600 300x300 600x600 600x300Spigot size Ø150 Ø300 300x150 600x300 Ø150 Ø300 300x150
Air Flow Ratem3/h 126 508 324 1296 126 508 324l/s 35 141 90 360 35 141 90
Throw Short Side Min.-Max. [m] 0.2-0.5 1.0-2.3 0.8-1.8 1.0-3.2 0.3-0.6 1.0-2.3 0.8-1.8Throw Long Side Min.-Max. [m] - - 1.0-2.3 1.7-4.0 - - 1.0-2.3Noise Level [NR] - 18 16 31 16 19 19Static Pressure Loss [Pa] 1 3 4 18 2 3 4
Air Flow Ratem3/h 191 763 486 1944 191 763 486l/s 53 212 135 540 53 212 135
Throw Short Side Min.-Max. [m] 0.4-0.9 1.5-3.6 1.3-3.1 1.8-4.0 0.5-1.1 1.5-3.6 1.3-3.1Throw Long Side Min.-Max. [m] - - 1.9-4.4 2.6-5.0 - - 1.9-4.4Noise Level [NR] 22 27 28 42 24 28 26Static Pressure Loss [Pa] 3 6 4 40 4 6 9
Air Flow Ratem3/h 252 1015 648 2592 252 1015 648l/s 70 282 180 720 70 282 180
Throw Short Side Min.-Max. [m] 0.6-1.4 2.1-5.0 1.9-4.4 2.7-5.0 0.7-1.7 2.1-5.0 1.9-4.4Throw Long Side Min.-Max. [m] - - 2.8-6.6 3.3-6.0 - - 2.8-6.6Noise Level [NR] 28 36 32 51 30 36 32Static Pressure Loss [Pa] 5 10 14 70 7 11 17
Air Flow Ratem3/h 317 1282 810 3240 317 1282 810l/s 88 356 225 900 88 356 225
Throw Short Side Min.-Max. [m] 0.8-1.9 2.7-6.2 2.5-5.8 3.3-5.3 1.0-2.3 2.7-6.2 2.5-5.8Throw Long Side Min.-Max. [m] - - 3.8-8.9 4.0-6.3 - - 3.8-8.9Noise Level [NR] 33 44 40 61 35 44 40Static Pressure Loss [Pa] 7 16 21 105 10 17 26
Air Flow Ratem3/h 382 1526 972 382 1526 972l/s 106 424 270 106 424 270
Throw Short Side Min.-Max. [m] 1.1-2.6 3.3-7.7 2.9-6.9 1.3-3.0 3.3-7.7 2.9-6.9Throw Long Side Min.-Max. [m] - - 4.7-11.0 - - 4.7-11.0Noise Level [NR] 38 53 45 39 53 45Static Pressure Loss [Pa] 10 23 31 15 25 38
Air Flow Ratem3/h 446 446l/s 124 124
Throw Short Side Min.-Max. [m] 1.4-3.3 1.6-3.8Throw Long Side Min.-Max. [m] - -Noise Level [NR] 41 42Static Pressure Loss [Pa] 14 20
Air Flow Ratem3/h 508 508l/s 141 141
Throw Short Side Min.-Max. [m] 1.7-4.0 2.0-4.6Throw Long Side Min.-Max. [m] - -Noise Level [NR] 44 45Static Pressure Loss [Pa] 19 27
Waterloo 2.0 48 Tel: +44 (0) 1622 711511
Performance Tables
Selection ExampleCPD2/300x300/150Air Flow Rate 70 l/sThrow 2.0 - 4.6mStatic Pressure Loss 13 PaNoise level NR 34
Selection CriteriaCeiling height up to 2.8 mRadius of diffusion is based on terminalvelocities of 0.75 m/s (minimum) and0.10 m/s (maximum) to achieve meanroom air velocities of 0.25 m/s and0.10 m/s respectively.NR level is based on diffuser soundpower level less 8dB room absorption. Square Neck Supply Diffuser Corrections
CPD/300x300/150 x 150 as 150Ø - 6dB Pa x 0.65CPD/600x600/300 x 300 as 300Ø - 6dB Pa x 0.65
Perforated Face DiffusersCPD CPDE
Waterloo
CPD 2 way ExhaustSizes 300x300 600x600 600x300 300x300 600x600 600x300 1200x600Spigot size Ø150 Ø300 300x150 150x150 450x450 450x150 600x300
Air Flow Ratem3/h 126 508 324 162 486 1458 1296l/s 35 141 90 45 135 405 360
Throw Min.-Max. [m] 0.8-1.8 1.4-3.3 1.1-2.5Noise Level [NR] 20 23 21 - - - -Static Pressure Loss [Pa] 3 4 6 6 6 6 6
Air Flow Ratem3/h 191 763 486 241 727 2185 1944l/s 53 212 135 67 202 607 540
Throw Min.-Max. [m] 1.3-3.1 2.3-5.4 2.5-5.8Noise Level [NR] 29 32 29 - 15 19 20Static Pressure Loss [Pa] 8 9 12 10 10 10 10
Air Flow Ratem3/h 252 1015 648 324 972 2916 2592l/s 70 282 180 90 270 810 720
Throw Min.-Max. [m] 2.0-4.6 3.2-7.6 3.8-9.0Noise Level [NR] 34 38 36 19 25 29 28Static Pressure Loss [Pa] 13 16 22 14 14 14 14
Air Flow Ratem3/h 317 1282 810 403 1213 3636 3240l/s 88 356 225 112 337 1010 900
Throw Min.-Max. [m] 2.7-6.3 4.1-9.7 5.4-12.7Noise Level [NR] 38 45 41 27 33 37 36Static Pressure Loss [Pa] 21 25 34 20 20 20 20
Air Flow Ratem3/h 382 1526 972 486 1458 4374l/s 106 424 270 135 405 1215
Throw Min.-Max. [m] 3.5-8.2 5.1-12.0 6.6-15.5Noise Level [NR] 41 53 45 33 39 43Static Pressure Loss [Pa] 30 27 50 40 40 40
Air Flow Ratem3/h 446 565 1699 5112l/s 124 157 472 1420
Throw Min.-Max. [m] 4.3-10.2Noise Level [NR] 44 38 44 48Static Pressure Loss [Pa] 40 50 50 50
Air Flow Ratem3/h 508l/s 141
Throw Min.-Max. [m] 5.0-12.2Noise Level [NR] 47Static Pressure Loss [Pa] 53
Waterloo 2.0 49 Tel: +44 (0) 1622 711511
Perforated Face DiffusersCPD CPDE
CPD4 CPD3
CPD2 CPDE
4 way 3 way
2 way Exhaust
W - 100drop rodcentres
H - 100
drop ro
d
centres
4 Holes 9.5Øfor drop rods
Deflection Patterns
InstallationDrop rod (or tie wire) support method is recommendedfor concealed T and flush mounting options.
Nominal Deflecting Pad SizeSize (mm) CPD4 CPD3 CPD2
300x300 150x150 195x150 240x150600x600 200x200 370x200 540x200600x300 300x150 420x150 540x150
1200x600 950x200 - -
Ceiling opening =W-20 x H -20
FLUSH
600 T Bar Centres
Drop rod fixingby others
LAY-IN / EXPOSED T BAR
300/600/1200 Centres
CONCEALED T BAR
Waterloo
Waterloo 2.0 50 Tel: +44 (0) 1622 711511
Perforated Face DiffusersKRCP KRCPE
IntroductionThe Waterloo KRCP range of diffusers have beendesigned to suit 600mm square ceiling modules of‘Burgess type’, lay-in T and concealed T arrangements.The diffuser incorporates an easily removable perforatedface plate and adjustable inner multicone pattern controlcores which produce an efficient 4, 3, 2 or 1 way airdiffusion pattern. Matching exhaust units are available.The control cores are available as separate items tofacilitate simple on site changes.This diffuser may be applied to most commercialprojects, but as the frame detail incorporates an anti-smudge ring it is ideal for kitchen and restaurantapplications. The range is suitable for systems involvingair change rates up to 20 per hour and coolingdifferentials up to 14°C.
Product DescriptionKRCP Perforated face supply diffuserKRCPE Perforated face exhaust diffuserOBSS Opposed blade damper for square connectionsLD Louvre damper for circular connections
Features• Easy maintenance• Anti-smudge frame• Pivoted front plate• Adjustable pattern control cores• Versatile ceiling integration
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
SizesAll diffusers are 596 x 596mm overall. Available spigotsizes are as follows:-KRCP Ø300KRCPE 450 x 450, 300 x 300 or Ø300
WeightsKRCP 5.7 kgKRCPE 3.7 kgOBSS 4.0 kg
Order Example
KRCP/600x600/300 DIA/PPG9010/LDTypeNominal WidthNominal HeightSpigot SizeFinishDamper
75
596 SQUARE O/A
KRCPE LD OPTION22
97
KRCPE 450 SQ OBSS OPTION
KRCPE 300 SQ OBSS OPTION
450 SQUARE FACE OPENING
KRCP
Ø297 O/S
450 I/S NECK
6.5
Waterloo
Waterloo 2.0 51 Tel: +44 (0) 1622 711511
Perforated Face DiffusersKRCP KRCPE
Performance Tables
Selection ExampleKRCP/600x600/3004 way throwAir Flow Rate 210 l/sThrow 0.7 - 2.0mStatic Pressure Loss 7 PaNoise level NR 28
Selection CriteriaCeiling Height 3.0 mRadius of diffusion is based on terminalvelocities of 0.75 m/s (minimum) and0.10 m/s (maximum) respectively.NR level is based on diffuser sound powerlevel less 8dB room absorption.Data is based on testing in accordance withBS 4773 Part 1 and 2 for isothermal airconditions. Data is directly applicable tocooling and heating applications.
1 way 2 waycorner
2 wayopposite
3 way 4 way Exhaust
Core Patterns
Installation Options
600 T Bar centres
CONCEALED T BAR
600 T Bar centres
BURGESS TYPE MOUNT
600 T Bar centres
LAY-IN / EXPOSED T BAR
Waterloo
KRCPSupply
4 waythrow
3 waythrow
long side
3 waythrow
short side
2 waythrow
1 waythrow
m3/h l/s
504 140T 0.3-1.1 0.3-1.3 0.3-0.8 0.3-1.8 0.4-2.5Pa 4 4 4 4 4Lw 17 17 17 17 17
756 210T 0.7-2.0 1.0-3.0 0.5-1.6 0.6-2.5 1.8-3.5Pa 7 7 7 7 7Lw 28 28 28 28 28
1008 280T 1.2-2.5 1.6-3.5 0.7-2.0 1.2-3.5 3.2-5.5Pa 17 17 17 17 17Lw 37 37 37 37 37
1260 350T 1.7-3.5 2.1-4.0 1.2-2.5 1.7-4.5 4.5-8.0Pa 26 26 26 26 26Lw 44 44 44 44 44
KRCPEExhaust
Spigot450x450
SpigotØ300m3/h l/s
504 140Pa 1 6Lw - -
1008 280Pa 4 22Lw - -
1512 420Pa 9 50Lw 18 23
2016 560Pa 15 88Lw 30 33
2520 700Pa 23 125Lw 40 41
Waterloo 2.0 52 Tel: +44 (0) 1622 711511
Perforated Face DiffusersMWVP MWVPD
Waterloo
Order ExampleMWVPD-3-200/PPM9010
TypeNumber of DirectionsInlet Spigot DiameterFinish
*The perimeter of the oval is equivalent to the circumference of a circle of the stated diameter
*The perimeter of the oval is equivalent to the circumference of a circle of the stated diameter
W x H ØD EMWVP
EMWVPD Filter Size S
340x340 200 100 296 335x335 110
440x440 250 oval* 100 296 435x435 117
MWVPD MWVP
W x H øD1 E S øD E
240x240 125 235 72 125 87
300x300 160 270 90 160 92
380x380 200 300 110 200 92
480x480 250 oval* 295 102 250 97
560x560 315 oval* 295 99 315 107
MWVPD
MWVP-R
MWVPD-RF
MWVP-RF
IntroductionThe MWVP(D) is a high induction multidirectional (throughblanking plate arrangement) ceiling diffuser with aperforated frontplate. The diffuser is suitable for both supplyand extract applications, with chilled, warm or isothermalair. It is delivered with an acoustically lined plenum attachedas standard. The plenum also has a sound attenuation bladespecially designed to have a minimal effect on pressure,helping to reduce noise levels even further.
Extract diffusers can have an optional EU2 filter fitted, whichconform to the Eurovent norm.
Product DescriptionMWVPD-4 Side-Entry, 4-Way Perforated Plate Supply
Diffuser MWVPD-3 Side-Entry, 3-Way Perforated Plate Supply
Diffuser MWVPD-2 Side-Entry, 2-Way Perforated Plate Supply
Diffuser MWVP-4 Top-Entry, 4-Way Perforated Plate Supply
Diffuser MWVP-3 Top-Entry, 3-Way Perforated Plate Supply
Diffuser MWVP-2 Top-Entry, 2-Way Perforated Plate Supply
DiffuserMWVPD-R Side-Entry Perforated Plate Extract DiffuserMWVPD-RF Side-Entry Perforated Plate Extract Diffuser
With FilterMWVP-R Top-Entry Perforated Plate Extract DiffuserMWVP-RF Top-Entry Perforated Plate Extract Diffuser
With Filter
Features• Supply and extract functionality
• Suitable for chilled, isothermal or warmed air.
• Ideal for modular ceiling tile replacement
• High entrainment and mixing of surrounding air.
• Short throw
FinishingFront plate is PPM 9010 (20% gloss white)as standardOther colours are available on request
SizesSee Table
Waterloo 2.0 53 Tel: +44 (0) 1622 711511
Perforated Face DiffusersMWVP MWVPD
Waterloo
Performance Table
Selection ExampleMWVP(D)-4-250 Air Volume 111 l/s or 400 m3/hThrow 1.1 mPressure Drop9 PaSound Level < NR 20
Selection CriteriaCeiling Height 2.7 mTemperature Differential (Room/Supply air) -10KAir Velocity In The Comfort Zone 0.15 m/sLp dB(A) = Lw less 8 dB Room Damping
MWVP(D) 4-Way Supply 3-Way Supply 2-Way Supply ExtractExtractWithFilter
m3/h l/s 125 160 200 250 315 125 160 200 250 315 125 160 200 250 315 125 160 200 250 315 200 250
100 28
T 0.5 0.4 0.5 0.4 0.6
Ps 8 3 11 5 17 5 3
Lp - - - - 16 - -
150 42
T 0.8 0.6 0.8 0.7 1.3 0.9
Ps 16 7 24 10 40 16 14 6
Lp 22 - 24 - 29 - - -
200 56
T 1.0 0.8 0.7 1.1 0.9 0.8 2.0 1.1 0.8
Ps 33 12 5 24 18 8 68 30 12 25 11 9
Lp 30 16 - 33 20 - 40 24 - 17 - -
250 69
T 1.3 1.0 0.8 0.5 1.1 0.8 0.5 1.6 1.0 0.7
Ps 48 18 8 3 28 12 5 44 17 8 39 16 13 3
Lp 39 24 - - 27 - - 31 18 - 23 - - -
300 83
T 1.2 1.0 0.8 1.3 1.1 0.9 2.1 1.3 1.1
Ps 28 12 5 40 18 7 64 27 11 56 21 9 18 5
Lp 33 15 - 34 18 - 39 23 - 27 - - - -
400 111
T 1.3 1.1 0.9 1.4 1.3 1.0 2.1 1.3 1.0
Ps 20 9 4 30 12 5 48 20 8 31 15 29 9
Lp 26 - - 28 18 - 31 23 - 22 - - -
500 139
T 1.6 1.4 1.2 1.7 1.7 1.3 2.6 2.1
Ps 32 13 6 48 20 7 30 11 44 24 10 41 44
Lp 32 20 - 37 26 15 29 19 28 18 - 22 -
600 167
T 1.7 1.4 2.1 1.6 3.5 2.6
Ps 18 9 28 17 44 18 35 14 5 55 20
Lp 27 16 31 19 35 24 21 - - 27 23
750 208
T 1.7 2.0 3.3
Ps 13 18 28 54 22 11 31
Lp 24 28 31 28 - - 28
1000 278
T 2.3 2.7
Ps 24 28 36 14 56
Lp 35 36 24 - 35
Waterloo 2.0 54 Tel: +44 (0) 1622 711511
Perforated Face DiffusersWPD MWPD
Order Example: WPD-4-200-WKDV
TypeDiffuser PatternSpigot DiameterPlenum Type
IntroductionThe Waterloo high-induction ceiling diffuser type WPDhas a perforated faceplate and easily adjustable airpattern settings. The diffuser is made from aluminiumextrusions with the plenum manufactured fromgalvanised steel. The complete unit has beenspecifically designed to ensure a constant air pattern,resulting in optimal mixing with room air at a very lownoise level. An optional mounting plate is available tosuit 600 x 600 ceiling systems (the overall size of themounting plate is 595 x 595).
Product DescriptionWPD-4 Square ceiling diffuser with 4 way air patternWPD-3 Square ceiling diffuser with 3 way air patternWPD-2 Square ceiling diffuser with 2 way air patternWPD-R Square ceiling diffuser for return airMWPD Square diffuser mounted in perforated
modular plateWKDV Supply air plenumWKDVI Insulated supply air plenumWKRV Return air plenumMPV Modular plateWWM Fixing set
Features• Supply and exhaust applications of warm, cool and
isothermal air
• High induction characteristics
• Variety of air patterns
• Suitable for modular ceiling systems
• Excellent free-jet performance
• Adjustable 3 position faceplate
FinishesPPM9010 (RAL 9010 20% Gloss White)Other colours available on request
Advantages• Excellent aerodynamic performance• Good mixing with room air• Can be used for full tile replacement• Short throw
WPD + MPV-600
WxH
øD1595 x 595
60
K40
MWPD
WxH
øD1595 x 595
60
K4
0
W x H øD1 øD2 E K X
210x210 125 125 243 33 0/ 7.5/15210x210 160 160 243 33 0/ 7.5/ 15310x310 200 200 290 40 0/ 7.5/ 15410x410 250 250 355 55 0/ 7.5/ 15510x510 315 315 435 70 0/ 7.5/ 15
Waterloo
Waterloo 2.0 55 Tel: +44 (0) 1622 711511
Perforated Face DiffusersWPD MWPD
Performance Tables
Accessories
Selection ExampleWPD-4-1254 way supply
Air Volume 56 I/sThrow 1.0 mPressure Drop 33 PaNoise Level NR 31
Selection CriteriaCeiling Height 2.7 mTemperature Differential -10KRoom Velocity Vr 0.15 m/sLw based on diffuser sound power levelminus 8 dB room absoption.
All selections include the plenum
M6 WasherM6 Nut
Support Frame
Spring Clip SetDiffuser Frame
WWM-Set
WPD + WWM-Set The WWM fixing set consists of 2support frames, 4 spring clip sets and4 M6 nuts and washers.
FaceplateHeight
Corrections
X (mm) ‘T’ Throw (m) Pressure (Pa) Noise level (NR)
0 x 1.0 x 1.0 07.5 x 0.9 x 0.9 - 215 x 0.8 x 0.6 - 3
WPD Supply4 way
Supply3 way
Supply2 way
Exhaust
m3/h l/s 125 160 200 250 315 125 160 200 250 315 125 160 200 250 315 125 160 200 250 315
100 28
T 0.5 0.4 0.5 0.4 0.6
Ps 8 3 11 5 17 5
Lp - - - - 17 -
150 42
T 0.8 0.6 0.8 0.7 1.3 0.9
Ps 16 7 24 10 40 16 14
Lp 23 - 25 - 30 - -
200 56
T 1.0 0.8 0.7 1.1 0.9 0.8 2.0 1.1 0.8
Ps 33 12 5 24 18 8 68 30 12 25 11
Lp 31 17 - 34 21 - 41 25 - 18 -
250 69
T 1.3 1.0 0.8 0.5 1.1 0.8 0.5 1.6 1.0 0.7
Ps 48 18 8 3 28 12 5 44 17 8 39 16
Lp 40 25 - - 28 - - 32 19 - 24 -
300 83
T 1.2 1.0 0.8 1.3 1.1 0.9 2.1 1.3 1.1
Ps 28 12 5 40 18 7 64 27 11 56 21 9
Lp 34 16 - 35 19 - 40 24 - 28 - -
400 111
T 1.3 1.1 0.9 1.4 1.3 1.0 2.1 1.3 1.0
Ps 20 9 4 30 12 5 48 20 8 31 15
Lp 27 - - 29 19 - 32 24 - 23 -
500 139
T 1.6 1.4 1.2 1.7 1.7 1.3 2.6 2.1
Ps 32 13 6 48 20 7 30 11 44 24 10
Lp 33 21 - 38 27 16 30 20 29 19 -
600 167
T 1.7 1.4 2.1 1.6 3.5 2.6
Ps 18 9 28 17 44 18 35 14 5
Lp 28 17 32 20 36 25 22 - -
750 208
T 1.7 2.0 3.3
Ps 13 18 28 54 22 11
Lp 25 29 32 29 - -
1000 278
T 2.3 2.7
Ps 24 28 36 14
Lp 36 37 25 -
Waterloo
Waterloo 2.0 56 Tel: +44 (0) 1622 711511
IntroductionThe Waterloo high-induction ceiling diffuser type WIDhas a perforated faceplate and easily adjustable airpattern settings. The diffuser is made from aluminiumextrusions with the plenum manufactured fromgalvanised steel. The complete unit has beenspecifically designed to ensure a constant air pattern,resulting in optimal mixing with room air at a very lownoise level.An optional mounting plate is available to suit600x600 ceiling systems (the overall size of themounting plate is 595x595).
Product DescriptionWID-4 Square ceiling diffuser with 4 way air patternWID-3 Square ceiling diffuser with 3 way air patternWID-2 Square ceiling diffuser with 2 way air patternWID-R Square ceiling diffuser for return airWKDV Supply air plenumWKDVI Insulated supply air plenumWKRV Return air plenumMPV Modular plateWWM Fixing set
Features• Supply and exhaust applications of warm, cool and
isothermal air
• High induction characteristics
• Variety of air patterns
• Suitable for modular ceiling systems
• Excellent free-jet performance
FinishesPPM9010 (RAL 9010 20% Gloss White)Other colours available on request
Advantages• Excellent aerodynamic performance• Good mixing with room air• Can be used for full tile replacement• Short throws
WID + MPV
WxHØD1
595 x 595
X60
K40
Order Example:
WID-3-200-WKDVI TypeDiffuser PatternSpigot DiameterPlenum Type
W x H øD1 øD2 E K X210x210 125 125 196 33 20 27.5 35210x210 160 160 231 33 20 27.5 35310x310 200 200 270 40 20 27.5 35410x410 250 250*oval 288 55 20 27.5 35510x510 315 315*oval 288 70 20 27.5 35
* The perimeter of the oval is equivalent to the circumference of a circle of the stated diameter
Perforated Face DiffusersWID
Waterloo
Waterloo 2.0 57 Tel: +44 (0) 1622 711511
Perforated Face DiffusersWID
Performance Tables
Selection CriteriaCeiling Height 2.7 mTemperature Differential -10KRoom Velocity Vr 0.15 m/sLw based on diffuser sound power levelminus 8 dB room absoption.
All selections include the plenum
Selection ExampleWID-4-1254 way supplyAir Volume 125 m3/h (35 I/s)Throw 0.4 mPressure Drop 22 PaNoise level Lw 25
FaceplateHeight
Corrections
X (mm) ‘T’ Throw (m) Ps (Pa) Noise level (Lw)
20 x 1.0 x 1.0 +027.5 x 0.9 x 0.6 - 235 x 0.8 x 0.5 - 2
Waterloo
WID Supply4 way
Supply3 way
Supply2 way
Exhaust
m3/h l/s 125 160 200 250 315 125 160 200 250 315 125 160 200 250 315 125 160 200 250 315
50 14T 0.4 0.6Ps 7 9Lp - -
75 21T 0.2 0.5 0.7Ps 10 12 15Lp - - 22
100 28T 0.3 0.6 0.8Ps 14 19 22 6Lp 21 24 27 -
125 35T 0.4 0.3 0.7 0.5 0.9 1.2Ps 22 10 26 12 32 16 8Lp 25 - 28 - 33 - -
150 42T 0.5 0.4 0.9 0.7 1.0 0.8Ps 29 15 35 18 43 22 13 5 2Lp 28 20 32 21 36 25 - - -
200 56T 0.7 0.6 0.5 1.2 0.9 0.7 1.4 1.2 1.1Ps 45 25 12 57 28 16 69 35 18 23 9 4Lp 34 24 - 41 25 - 44 27 18 18 - -
250 69T 0.7 0.6 1.2 0.9 1.6 1.5Ps 33 19 40 21 50 25 36 13 5 2Lp 29 - 30 19 33 22 24 - - -
300 83T 0.9 0.8 0.7 1.4 1.2 1.1 2.0 1.7 1.5Ps 48 23 9 52 27 12 66 35 15 52 19 8 3Lp 32 21 - 34 23 - 38 26 21 29 - - -
400 111T 1.2 1.0 1.6 1.5 2.4 2.1Ps 37 17 46 26 57 26 91 34 14 6 2Lp 26 20 28 23 33 26 35 23 - - -
500 139T 1.5 1.3 1.1 2.0 1.8 1.6 3.1 2.6 2.3Ps 50 24 11 60 27 12 85 38 15 52 21 9 4Lp 30 24 21 32 26 22 40 30 24 29 15 - -
600 167T 1.5 1.3 2.2 2.0 3.2 2.7Ps 33 16 40 18 53 19 75 31 13 5Lp 28 24 30 26 33 28 34 22 - -
750 208T 1.9 1.6 2.8 2.4 3.3Ps 50 22 60 25 28 48 21 9Lp 34 28 38 30 33 28 - -
1000 278T 2.3 3.1 4.4Ps 36 40 46 84 38 15Lp 34 36 38 36 23 -
1250 347T 2.9 3.8Ps 52 57 60 24Lp 38 40 29 19
Waterloo 2.0 58 Tel: +44 (0) 1622 711511
Luminaire DiffusersLUMDF
Waterloo
6.5mm cable grommet for mainspower and emergency powerpack connection 575 x 575
5
255
Quick fix plenum clips
120
50
390 Ø
157
596 o/a
486 i/s recess
600 grid centres
596
x 59
6
Supply with 2m ofcable pre-wired tofitting
Pitot measurement point(remove light diffuser for access)
Order Example
LUMDF-S/PPM9010/0001/EP/FDCTypeSupplyFinishProject ReferenceOptional Emergency PackOptional Damper
IntroductionThe Waterloo Luminaire unit is a technically advancedform of light and air terminal which provides multi-directional supply air capability.
Available in both supply and extract versions, the units aredesigned as a ‘tile replacement’ fitting which simply dropsinto any standard 600mm square ‘T’ grid. Furthermore,the use of a special lightweight plenum construction limitsthe overall weight of the supply unit to 9.6kg for the basicunit and 10.3kg with the emergency pack, therebyeliminating the requirement for additional overheadsupport.
Plenums are provided with a ‘quick fix’ clip enabling theinlet spigot to be conveniently configured to suit the supplyduct arrangement.
Both supply and extract units are available with optionalemergency power supplies and all come pre-wired with2m of flying lead.
Supply units can be specified with optional cord operateddampers, which together with the calibration port on thelight case (accessible after removal of the light diffuser),make site commissioning a quick and simple procedure.
Features• Multi-directional air throw capability, quickly and easily
adjustable from face of unit• Lightweight construction• Clip fixed plenum for on-site versatility• Integrated commissioning port• All units supplied complete with pre-wired flying lead• Innovative heat extraction system from light fitting• LGC 3 Cat fitting c/w airhandling linear slot diffuser
Benefits• Can be installed in central areas or adjacent to walls
without degredation of performance or appearance• Units can be quickly and easily relocated and
re-commissioned if site layouts alter• Supply and extract versions can be fitted into ceiling grid
without overhead support• Simple air flow measurement on site via built in port• Aids reduction of heat load from lighting in occupied
zone
Lamp Types• 36W, TC-L compact fluorescent, cap: 2G11
FinishesPlenum Box: Class “O” rated fire retardant board.
Diffuser : Galvanised Steel
StandardsDesigned and manufactured to comply withEN 605982.1. Emergency versions with louvre or TP(a) diffuser attachments compy with EN 60598 .2.22. Class 1 Electrical, CIBSE LG3 VDT, CE Mark
Waterloo 2.0 59 Tel: +44 (0) 1622 711511
Luminaire DiffusersLUMDF
Waterloo
Performance Data
PerformanceJet throws are based on the horizontal distance from the centre of theunit to the point where the jet velocity has decayed to 0.5 m/s.
Data is valid for isothermal conditions or cooling differentials of up to10°C.
Noise levels are based on peak sound power level plotted onto NR andassume a typical room absorption allowance of 8dB (LRlp ref 8dB abs.)
Octave band sound power level data is available on request.
0˚
60˚
90˚
60˚
90˚
Photometric Data
30˚30˚
Emergency factor
1Room index
LP
2
0.09 0.10 0.10 0.10 0.10
3 4 5
Air flow rate (l/s)
Throw (m)Pressure (Pa)
4 WayPattern
1.256
1.5 2.0 2.25 2.5 3.08 11 15 19 24
Noise Level NRLP - - - 21 25 28
40 50 60 70 80 90
Air flow rate (l/s)
Throw (m)Pressure (Pa)
3 WayPattern
1.58
2.0 2.75 3.512 17 22
Noise Level NRLP - - 20 25
40 50 60 70 80 90
Air flow rate (l/s)
Throw (m)Pressure (Pa)
2 WayPattern
2.513
3.0 4.020 28
Noise Level NRLP - 22 28
40 50 60 70 80 90
Air flow rate (l/s)
Pressure (Pa)
Exhaust
4 6 8
40 50 60 70 80 90
10 13 16
URF
C W F 1 2
0.6 0.6 0.2 0.58 0.65 0.67 0.68 0.690.5 0.56 0.63 0.66 0.66 0.690.3 0.53 0.61 0.65 0.64 0.67
0.7 0.6 0.2 0.57 0.64 0.66 0.68 0.680.5 0.55 0.63 0.65 0.67 0.670.3 0.53 0.61 0.64 0.65 0.66
0.8 0.6 0.2 0.58 0.62 0.64 0.65 0.650.5 0.54 0.61 0.63 0.64 0.650.3 0.53 0.59 0.62 0.63 0.64
3 4 5
For additional lighting information refer to leaflets LAL011/1issue 3 and LAL011/2 issue 3, copies of which areavailable upon request.
Waterloo 2.0 60 Tel: +44 (0) 1622 711511
Fixed Blade Swirl DiffusersSDFC SDFS
*125 WITH QUADRANT OPERATED FLAPDAMPERS.
Duct mounting collar
Ceilingsupportbrackets
50
ØD1 o/s
65H
65H
ØG
Ø A
ØD1 o/s
12
To suit nominalgrid type & size
To s
uit n
omin
algr
id ty
pe &
siz
e
SDFC SDFS
SDFC SDFS
Edge detail to suit grid typeas shown below
FE *75
20
C50
ØD2
IntroductionWaterloo Air Products range of fixed blade swirl diffuserspresents an attractive and aerodynamically efficientalternative to conventional circular or square ceiling airterminals.The diffusers are designed to produce a horizontal,radial air pattern with a turbulent, high induction jetcharacteristic and are ideally suited for applications withhigh heating or cooling differentials.Manufactured from aluminium with press formed blades,the units are available in a range of six ISO sizes ineither circular (type SDFC) or square format (types SDFS)and can be supplied complete with a duct mountingcollar for easy assembly.The steel duct mounting collar can be used as a means offixing and supporting the diffuser from rigid ductwork, oralternatively, ceiling support brackets (supplied asstandard) can be fitted for use with flexible ducting.
Product DescriptionSDFC Circular face swirl diffuserSDFS Square face swirl diffuserDM*** Duct collar WTP*** Side entry plenum box
(*** is replaced with nominal size)- see order example
FDC1 Cord operated flap damperFDQ1 Quadrant operated flap damperLINED 6mm Class O fire rated acoustic lining
Please note the duct collar is not requiredwhen ordering diffusers with plenums.
SizesSee table
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Frame size
483,583, 733
500, 600,
750 Nom Grids
Tegular frame - T8 Tegular frame - T16Exposed '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
Please note a 300x300 grid is only available for an exposed lay-in type,and with neck sizes up to 250Ø.
SDFC Size Diffuser + Collar Plenum125 Ø 0.3 kg 1.6 kg160 Ø 0.4 kg 1.9 kg200 Ø 0.6 kg 4.5 kg250 Ø 0.7 kg 5.1 kg315 Ø 1.0 kg 7.4 kg400 Ø 1.5 kg 9.5 kg
SDFS Grid Size Diffuser + Collar Plenum 300 x 300 1.1 kg For plenum weights
use data abovebased on nominal
neck size
500 x 500 1.5 kg600 x 600 2.1 kg750 x 750 3.2 kg
Nom.Size
ØA Available Grid Sizesfor SDFS C ØD1 ØD2 E F ØG H
125 200 300, 500, 600 or 750 215 123 97 320 300 160 25
160 250 300, 500, 600 or 750 240 158 122 320 300 200 25
200 300 300, 500, 600 or 750 275 198 157 420 400 250 25
250 350 300, 500, 600 or 750 315 248 197 420 400 300 25
315 450 500, 600 or 750 370 313 247 520 500 370 30
400 535 500, 600 or 750 435 397 312 580 560 460 30
Order Example
SDFS-250/T16/500/PPM9010 /DM/WTP/FDC1/LINED
TypeNominal SizeFrame Style & Grid(if square diffuser)Colour FinishDuct Collar (DM) or Plenum (WTP)Plenum Spigot Damper (if required)Acoustic Plenum Lining (if required)
Waterloo
SDFS Frame Styles and Grid Sizes
Waterloo 2.0 61 Tel: +44 (0) 1622 711511
Fixed Blade Swirl DiffusersSDFC SDFS
Performance Table
Selection CriteriaJet throw data is expressed in metres and isbased on a terminal velocity of 0.5m/s and a10°C cooling differential. For isothermal or10°C heating conditions apply a factor of1.15 to the throws.
NR levels are based on sound pressure levelswith an assumed 8dB room absorption factorallowed.
Pressure loss data is shown in terms of staticpressure loss (Pa) based on a diffuser fittedwith a DM collar, or for a diffuser installed ina WTP plenum.
For exhaust applications add 3dB to the NR level and multiply pressure loss by 1.1
SDFCSDFS
Supply Air Volumem3/h 36 72 108 144 180 216 252 288 324 360 432 504 576 648 720 810 900 990 1080
Diameter l/s 10 20 30 40 50 60 70 80 90 100 120 140 160 180 200 225 250 275 300
125
Jet Throw 0.3 0.5Lw Duct 20 34
Lw Plenum 22 36Ps Duct 16 47
Ps Plenum 20 59
160
Jet Throw 0.4 0.6 1.0 1.3Lw Duct - 24 33 39
Lw Plenum - 26 35 41Ps Duct 10 21 25 55
Ps Plenum 12 26 31 69
200
Jet Throw 0.4 0.6 0.9 1.3 1.5 1.8Lw Duct - - 20 27 32 36
Lw Plenum - - 22 29 34 38Ps Duct 4 9 15 22 30 40
Ps Plenum 5 11 19 28 38 50
250
Jet Throw 0.6 1.0 1.3 1.4 1.6 1.8 2.1 2.3Lw Duct - - - 21 24 28 31 37
Lw Plenum - - 20 23 26 30 33 39Ps Duct 5 8 11 15 19 24 29 40
Ps Plenum 6 10 14 19 24 30 36 50
315
Jet Throw 0.8 1.0 1.2 1.3 1.4 1.6 1.9 2.2 2.4Lw Duct - - - - 22 25 30 35 38
Lw Plenum - - - 20 24 27 32 37 40Ps Duct 5 7 9 11 14 17 25 33 41
Ps Plenum 6 9 11 14 17 21 31 41 51
400
Jet Throw 1.0 1.2 1.3 1.7 2.2 2.4 2.6 3.0 3.4 3.6Lw Duct - - - - - 22 25 28 30 33
Lw Plenum - - - - 20 24 27 30 32 35Ps Duct 3 5 6 8 11 13 17 20 24 29
Ps Plenum 4 6 8 10 14 16 21 25 30 36
Waterloo
Selection ExampleSDFC/315Air flow rate 120 l/s
Ducted DiffuserJet throw 1.9mStatic Pressure Loss 25 PaNoise level NR 30
Plenum Mounted DiffuserJet throw 1.9mStatic Pressure Loss 31 PaNoise level NR 32
Waterloo 2.0 62 Tel: +44 (0) 1622 711511
Perforated Face Swirl DiffusersSDFS-P
H
AØD1
B
ØD
1
75
ØD
70
SDFS-PPerforated supply diffuser
SDFS-P Perforated supply diffuser with WTP plenum
SDFS-P-EPerforated extract diffuser
(for ceiling void return only)
Frame size
Fram
e si
ze
ØD
110
Duct mountingcollar
RemovableFaceplate
Hangingbrackets
Frame size
Fram
e si
ze
RemovableFaceplate
Hangingbrackets
38
IntroductionWaterloo Air Products range of perforated face, fixedblade swirl diffusers presents an attractive andaerodynamically efficient alternative to conventionalcircular or square ceiling air terminals.The diffusers are designed to produce a horizontal,radial air pattern with a turbulent, high entrainment jetcharacteristic and are ideally suited for applications withhigh heating or cooling differentials.Manufactured from aluminium with press formed blades,the units have an aesthetically pleasing perforated facewhich has Ø4.5mm holes on an 8mm 45° pitch, givinga free area of 49.7%. They are available in a range of4 standard ISO sizes in 3 different frame configurationsto suit 4 nominal ceiling grid sizes. The steel duct mounting collar can be used as a meansof fixing and supporting the diffuser from rigid ductwork,or alternatively, ceiling support brackets (supplied asstandard) can be fitted for use with flexible ducting.
Product DescriptionSDFS-P Perforated face swirl diffuser SDFS-P-E Perforated face extract diffuser DM*** Duct collar WTP*** Side entry plenum box
(*** is replaced with nominal size)- see order example
FDC1 Cord operated flap damperFDQ1 Quadrant operated flap damperLINED 6mm Class O fire rated acoustic lining
Please note the duct collar is not required when orderingdiffusers with plenums.
SizesSDFS-P diffusers are available in ISO duct sizes rangingfrom 160mm to 400mm diameter, with 3 frame optionsto suit ceiling grid sizes of 300, 500, 600 & 750square.
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours are available on request
Nom.Size
Grid Size ØD ØD1 A B H
160 300 x 300 158 122 300 320 255
250 500 x 500 248 197 400 420 330
315 500 x 500 313 247 500 520 380
315 600 x 600 313 247 500 520 380
400 600 x 600 397 312 560 580 445
400 750 x 750 397 312 560 580 445
Order Example
SDFS-P-250/500/T16/PPM9010 /DM
/WTP/FDC1/LINED
TypeNominal sizeFrame style & gridColour finishDuct collar (DM) or Plenum (WTP)Plenum spigot damper (if required)Acoustic plenum lining (if required)
Modular Frame Styles and Grid Sizes
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, 583, 733
21.5
500, 600, 750Nom. Grid
483, 583, 733
21.5
8 16
FrameSize
FrameSize
FrameSizeNom Neck & Grid Size Diffuser + Collar Plenum
160/300x300 1.6 kg 1.9 kg250/500x500 2.5 kg 5.1 kg315/500x500 2.5 kg 7.4 kg315/600x600 3.6 kg 7.4 kg400/600x600 3.6 kg 9.5 kg400/750x750 5.4 kg 9.5 kg
Waterloo
Waterloo 2.0 63 Tel: +44 (0) 1622 711511
Perforated Face Swirl DiffusersSDFS-P
Selection ExampleSDFS-P-315/E/600Air Flow Rate 125 l/s
Ducted DiffuserJet Throw 1.2mStatic Pressure Loss 11 PaNoise level NR 23
Plenum Mounted DiffuserJet Throw 1.2mStatic Pressure Loss 18 PaNoise Level NR 26
Performance Table
Selection CriteriaJet throw data is expressed in metres and isbased on a terminal velocity of 0.5m/s anda 10°C cooling differential. For isothermal or10°C heating conditions apply a factor of1.15 to the throws.
NR levels are based on sound pressure levelswith an assumed 8dB room absorption factorallowed.
Pressure loss data is shown in terms of staticpressure loss (Pa) based on a diffuser fittedwith a DM collar, or for a diffuser installed ina WTP plenum.
SDFS-PSupply Air Volume
Grid Sizem3/h 108 144 180 216 288 360 450 540 630 720 810 900 990
Diameter l/s 30 40 50 60 80 100 125 150 175 200 225 250 275
160 300 x 300
Jet Throw 0.6 1.0 1.3Lw Duct 22 31 37
Lw Plenum 22 31 37Ps Duct 14 27 44
Ps Plenum 18 33 54
250 500 x 500
Jet Throw 0.4 0.5 0.7 1.0 1.7Lw Duct - - - 28 35
Lw Plenum - - - 28 35Ps Duct 4 7 10 19 30
Ps Plenum 5 8 12 23 36
315 500 x 500
Jet Throw 0.4 0.7 0.9 1.2 1.8 2.5Lw Duct - - - 25 31 36
Lw Plenum - - - 27 33 38Ps Duct 3 6 9 14 19 26
Ps Plenum 5 8 12 19 27 35
315 600 x 600
Jet Throw 0.7 0.9 1.2 1.8 2.5Lw Duct - - 23 29 33
Lw Plenum - - 26 31 36Ps Duct 4 7 11 17 22
Ps Plenum 8 12 18 26 35
400 600 x 600
Jet Throw 0.5 0.8 1.2 1.5 1.8 2.1 2.3 2.7Lw Duct - - - - 24 29 33 37
Lw Plenum - - - 23 27 32 35 39Ps Duct 4 6 8 11 14 18 23 26
Ps Plenum 5 8 10 14 18 23 30 35
400 750 x 750
Jet Throw 0.8 1.2 1.5 1.8 2.1 2.3 2.7Lw Duct - - 22 26 30 33 36
Lw Plenum - - 24 28 32 35 37Ps Duct 6 8 11 15 18 23 28
Ps Plenum 7 10 14 19 25 32 38
Exhaust Air Volume
Grid Sizem3/h 108 144 180 216 288 360 450 540 630 720 810 900 990l/s 30 40 50 60 80 100 125 150 175 200 225 250 275
300 x 300 Pressure loss Pa
(All selections <Lw20)
2 3 5 8 15500 x 500 1 2 3 5 7 10600 x 600 1 2 2 3 4 6 7 9 11750 x 750 1 2 2 3 4 6 7 9 11
Waterloo
Waterloo 2.0 64 Tel: +44 (0) 1622 711511
High Capacity Swirl DiffusersSDFCH SDICH SDACH
ØB ceiling cutout
ØA overall
ØC neckD
E
IntroductionThe Waterloo SDFCH are high capacity fixedblade swirl diffusers designed to produce ahorizontal, radial air pattern with a turbulent, highentrainment jet characteristic and are ideally suitedfor applications with high heating or coolingdifferentials.
The Waterloo SDICH is based on the SDFCH butallows the individual adjustment of blades tocreate a specifically required air pattern.
The Waterloo SDACH is also based on the SDFCHbut provides adjustment to the angle of all of theblades in unison in order to create the required airpattern. This can also be controlled remotely withan optional motor.
Both the SDICH and the SDACH allow a continualadjustment from providing coanda effect to verticaldumping. They are particularly useful in areas thatexperience a varied thermal load, for exampleareas that are effected heavily by the changes inseason.
All products in the high capacity swirl diffuserrange are suitable for ceilings up to 15m.
Product DescriptionSDFCH Large format, high capacity fixed swirl
diffuserSDICH Large format, high capacity swirl diffuser
with individually adjustable bladesSDACH Large format, high capacity swirl diffuser
with connected adjustable bladesSDP Side entry plenum boxFDC1 Cord operated flap damperFDQ1 Quadrant operated flap damperLINED 6mm Class O fire rated acoustic liningM Optional actuator- for the SDACH only
Features• Large size range• Profiled frame• Optional standard side entry plenum
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Advantages• High air volume capacity• Standard top entry neck, or side entry with
plenum box
NomSize ØA ØB ØC D E F G H J* ØD1 ØD2
200 280 225 197 90 5 395 375 290 413 197 200
250 330 275 247 100 5 445 425 340 473 247 250
315 430 360 312 115 5 520 500 405 553 312 315
400 530 450 397 130 5 595 575 490 653 397 400
500 650 550 497 185 8 695 675 590 808 497 500
Order Example
SDFCH/200/PPM9010/SDP/FDC1/LINEDType
Nominal size
Finish
Plenum (if required)
Plenum spigot damper
Plenum acoustic lining
F
PerforatedBaffle
H
G i/sØD1 o/s
ØD2 i/s
75
6375
(125 with FDQoption)
FDC, FDQ damperoptions
J*
*
* Please note the total installed height assumes an overlap of 30mm on thediffuser neck / plenum connection.
630 790 680 627 200 8 820 800 720 953 627 630
Waterloo
Waterloo 2.0 65 Tel: +44 (0) 1622 711511
High Capacity Swirl DiffusersSDFCH SDICH SDACH
Selection ExampleSDFCH/500Air Flow Rate 500 l/s
Ducted DiffuserJet Throw 4.0mStatic Pressure Loss 21 PaNoise Level NR 21
Plenum Mounted DiffuserJet Throw 4.0mStatic Pressure Loss 32 PaNoise Level NR 27
Performance Table
Selection CriteriaJet throw data is for a ceiling mounted diffuser andis based on a cooling differential of 10°C and a jetterminal velocity of 0.5m/sFor isothermal conditions apply a factor of 1.1 tothe throws.For 10°C heating applications apply a factor of 1.2to the throws.For duct mounted installations without a ceilingreduce jet throws by a factor of 0.7
Ps is the static pressure loss in Pa and is shown for aducted diffuser or for a diffuser installed in an SDPplenum.
NR levels are based on sound pressure levels withan assumed 8dB room absorption allowance.
For exhaust applications add 3dB to the NR level and multiply pressure loss by 1.1
SDFCHSupply Air Volume
m3/h 72 144 216 288 360 432 540 630 720 810 900 1080 1260 1440 1620 1800 2160 2520 2880 3240 3600 3960 4320
Diameter l/s 20 40 60 80 100 120 150 175 200 225 250 300 350 400 450 500 600 700 800 900 1000 1100 1200
200
Jet Throw 0.4 0.9 1.3 1.6 1.9Lw Duct 3 10 23 40 62Lw Plenum 3 12 27 47 70Ps Duct - - - 22 30Ps Plenum - - - 22 30
250
Jet Throw 1.1 1.3 1.6 1.8 2.0 2.2Lw Duct 8 14 22 33 50 66Lw Plenum 10 17 26 40 59 80Ps Duct - - - - 24 29Ps Plenum - - - 23 30 35
315
Jet Throw 1.4 1.6 1.8 2.0 2.4 2.8 3.3Lw Duct 7 11 15 21 28 35 43Lw Plenum 9 14 20 27 35 43 56Ps Duct - - - 22 27 31 34Ps Plenum - - 20 25 30 34 37
400
Jet Throw 1.7 1.9 2.2 2.4 2.8 3.5 3.8 4.2 4.7Lw Duct 5 6 9 11 14 20 27 35 45Lw Plenum 6 8 11 14 18 25 35 47 58Ps Duct - - - - - - 26 32 37Ps Plenum - - - - - 22 29 35 40
500
Jet Throw 3.2 3.5 3.7 4.0 4.7 5.3Lw Duct 10 13 17 21 30 40Lw Plenum 13 18 22 27 40 54Ps Duct - - - 21 27 32Ps Plenum 21 25 29 32 37 42
630
Jet Throw 2.8 3.1 3.8 4.4 5.4 6.1 7.0 7.7 8.2Lw Duct 6 8 12 16 21 26 34 40 49Lw Plenum 9 11 16 22 28 36 44 52 62Ps Duct - - - - 21 25 29 32 35Ps Plenum - - 21 25 29 33 36 39 42
Waterloo
Nom Size Diffuser (kg) Plenum(kg)200 0.5 5.5250 0.7 7.0315 1.2 9.0400 1.7 13.5500 3.5 18.5630 4.5 25
Also suitable for the SDICH and SDACH when set in the optimum coanda effect position
Waterloo 2.0 66 Tel: +44 (0) 1622 711511
Vane Swirl DiffusersSDVS SDVC
IntroductionThe Waterloo vane swirl diffusers are designed for areas whererapid mixing of supply air is required in rooms of ceiling heightbetween 2.6m and 4m.
Product DescriptionSDVSA Square plate vane swirl diffuser
with radial pattern (angled slot)SDVCA Circular plate vane swirl diffuser
with radial pattern (angled slot)SDVSB Square plate vane swirl diffuser
with radial pattern (normal slot)SDVCB Circular plate vane swirl diffuser
with radial pattern (normal slot)S Side entry plenumV Top entry plenum
Features• High air volume capacity
• Standard top entry neck, or side entry with plenum box
• Reversible polymer blades enabling different discharge directions
• Flat or ribbed blade appearance
• Attractive lightweight design
• Side or top entry plenums available
• In order to keep the same appearance the same design is
used for supply and extract diffusers. Meaning that there is
no requirement to identify this on the order.
FinishesBlack or white polymer vanes(to be specified on order)
PPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
Advantages• Suitable for high ceilings
(relative to other diffusers)• Rapid induction of supply air
Order Example
SDVSA-600-24/PPM9010/SType
Frontplate size
Front face pattern
Finish
Plenum type
Waterloo
200
60
ØB
C x C
D x D / ØDØG
60
FHØA
ØA
D x D / ØD
SDVSA-V / SDVCA-V
SDVSA-S / SDVCA-S
Air discharge - all left / all right
Air dischargeleft
Air dischargeright
SDVSB-800-64SDVSB-825-64
798/823
798/
823
598/623
SDVSB-600-40SDVSB-625-40
598/
623
498
SDVSB-500-24
498
398/498598/623
SDVSB-400-16SDVSB-500-16SDVSB-600-16SDVSB-625-16
398/
498
598/
623
298
SDVSB-300-8
298
SDVCB-800-64SDVCB-825-64
ø800/ø825
SDVCB-600-40SDVCB-625-40
ø600/ø625
SDVCB-500-24
ø500
Waterloo 2.0 67 Tel: +44 (0) 1622 711511
Vane Swirl DiffusersSDVS SDVC
Waterloo
ø400/ø500ø600/ø625
SDVCA-400-16SDVCA-500-16SDVCA-600-16SDVCA-625-16
SDVCA-500-24
ø500
598/623
SDVSA-600-48SDVSA-625-48
598/
623
SDVSA-800-72SDVSA-825-72
798/823
398/498598/623
SDVSA-400-16SDVSA-500-16SDVSA-600-16SDVSA-625-16
398/
498
598/
623
ø600/ø625
SDVCA-600-48SDVCA-625-48
ø300
SDVCA-300-8
298
298
SDVSA-300-8
SDVSA-500-24
498
498
SDVCA-800-72SDVCA-825-72
ø800/ø825
SDVCB-300-8
ø300
SDVCB-400-16SDVCB-500-16SDVCB-600-16SDVCB-625-16
ø400/ø500ø600/ø625
SDVSA SDVCA
SDVCBSDVSB
598/623
598/
623
SDVSA-600-24SDVSA-625-24
ø600/ø625
SDVCA-600-24SDVCA-625-24
FixingSizes 300 - 600 (inclusive) 1 screw centralSizes 625 - 825 (inclusive) 4 screws
Performance Table
Waterloo 2.0 68 Tel: +44 (0) 1622 711511
Vane Swirl DiffusersSDVS SDVC
Waterloo
SDVSASDVCA
Supply Exhaust with side entry plenum Exhaust with top entry plenum
300-8
400-16500-16600-16625-16
500-24600-24625-24
600-48625-48
800-72825-72
300-8
400-16500-16600-16625-16
500-24600-24625-24
600-48625-48
800-72825-72
300-8
400-16500-16600-16625-16
500-24600-24625-24
600-48625-48
800-72825-72
m3/h l/s
54 15T 0.7Ps 3Lp -
72 20T 0.9Ps 6Lp -
90 25T 1.1Ps 9Lp 10
108 30T 1.3 1.1Ps 12 3 4Lp 15 - -
144 40T 1.6 1.3 1.1Ps 22 6 3 7Lp 22 - - -
180 50T 1.9 1.4 1.3Ps 34 9 4 16 12Lp 28 13 - 9 7
216 60T 2.1 1.6 1.4 1.3Ps 50 14 6 2 24 17Lp 33 17 12 - 15 13
252 70T 2.4 1.7 1.6 1.4Ps 68 18 8 3 32 23Lp 37 21 16 - 19 18
288 80T 2.6 1.8 1.7 1.5Ps 88 24 11 4 42 14 30 11Lp 40 25 19 7 23 9 22 9
360 100T 2.0 2.0 1.7 1.8Ps 38 17 7 5 66 21 13 47 17 12Lp 31 25 13 - 30 16 9 28 16 8
450 125T 2.3 2.3 1.9 1.9Ps 59 26 11 7 103 33 20 73 26 19 8Lp 37 31 19 13 37 23 15 35 22 14 6
540 150T 2.6 2.1 2.0 1.9Ps 38 15 10 3 48 29 13 38 27 12 10Lp 35 23 18 - 28 21 10 28 20 12 6
720 200T 2.5 2.2 2.1Ps 27 18 6 85 52 23 18 7 67 48 21 18Lp 31 26 15 37 30 19 15 8 37 29 20 15
900 250T 2.8 2.4 2.3Ps 42 28 9 82 36 29 11 75 34 28 11Lp 37 31 21 37 26 21 15 36 27 22 10
1080 300T 2.5 2.5Ps 41 13 118 51 41 16 108 48 40 16Lp 36 25 42 31 27 21 41 33 27 16
1260 350T 2.6Ps 17 70 56 22 66 55 22Lp 29 36 32 25 37 32 21
1440 400T 2.8Ps 23 91 73 28 86 72 29Lp 33 40 36 29 41 36 25
1620 450T 2.9Ps 29 93 36 91 37Lp 36 39 33 40 28
1800 500T 3.0Ps 35 45 45Lp 39 36 32
2160 600TPs 65Lp 37
Performance Table
Waterloo 2.0 69 Tel: +44 (0) 1622 711511
Vane Swirl DiffusersSDVS SDVC
Waterloo
SDVSB SDVCBSupply
300-8400-16500-16600-16625-16
500-24600-40625-40
800-64825-64
m3/h l/s
54 15T 0.6Ps 3Lp -
72 20T 0.8Ps 5Lp -
90 25T 0.9Ps 6Lp -
108 30T 1.0Ps 8Lp -
144 40T 1.2Ps 12Lp 25
180 50T 1.4 1.2Ps 21 17Lp 31 27
216 60T 1.6 1.4 1.0Ps 30 24 7Lp 36 31 -
252 70T 1.8 1.6 1.1Ps 41 30 9Lp 41 36 22
288 80T 2.2 1.9 1.3Ps 54 40 11Lp 45 40 26
360 100T 2.3 1.5 1.0Ps 62 17 6Lp 45 32 22
450 125T 1.8 1.5 0.9Ps 26 11 1Lp 39 27 -
540 150T 2.1 1.6 1.1Ps 38 19 7Lp 43 32 21
720 200T 2.1 1.5Ps 34 14Lp 40 29
900 250T 2.5 1.8Ps 56 22Lp 46 35
1080 300T 2.2Ps 31Lp 39
1260 350T 2.5Ps 43Lp 44
Waterloo 2.0 70 Tel: +44 (0) 1622 711511
Circular Perforated Face DiffusersRWI
IntroductionThe Waterloo high induction, perforated face circulardiffuser type RWI, has an adjustable radial diffusionpattern and provides excellent induction characteristics.The diffuser and faceplate are manufactured fromaluminium with the plenum being zintec steel, and havebeen designed with modern ceiling types in mind.With their perforated face design, these diffusers ensurethat the primary air is already mixed inside the diffuserwith the room air, which results in a rapid temperaturedecay and short throw.
Product DescriptionRWI Circular supply diffuser with perforated faceplateRWI-R Circular return diffuser with perforated faceplateUKDV Supply air plenumUKDVI Insulated supply air plenumUKRV Return air plenumUKRVI Insulated return air plenum
Features• Supply and exhaust applications for heating, cooling
and isothermal conditions
• Excellent induction characteristics
• Variety of air patterns
• Suitable for modular ceiling systems
FinishesPPM9010 (RAL 9010 20% Gloss White)Other colours are available on request
Advantages• Excellent aerodynamic performance• No ceiling effect required• Short throw
Order Example
RWI-200/UKDV-160TypeDiameterPlenum TypePlenum Spigot Diameter
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWI + UKDVI
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWI-R + UKRV
Z
7.5
KL
ØD1ØXØA
RWI
Waterloo
Nom SizeØD1 WxH ØD2 ØA
overallØX
aperture E K L Z
100 210x210 100 190 175 205 55 12.5 19 / 26.5 / 34125 210x210 125 230 215 215 60 20.0 19 / 26.5 / 34160 310x310 160 270 255 295 65 27.5 19 / 26.5 / 34200 310x310 200 370 345 295 70 27.5 19 / 26.5 / 34250 410x410 250 470 440 365 75 35.0 19 / 26.5 / 34315 510x510 315 570 535 435 90 35.0 19 / 26.5 / 34
Waterloo 2.0 71 Tel: +44 (0) 1622 711511
Circular Perforated Face DiffusersRWI
Performance Table
Selection ExampleRWI-200Air Volume 111 I/s
Throw 1.2 mPressure Drop 37 PaNoise Level NR 26
Selection CriteriaCeiling Height 2.7mTemperature Differential -11KAverage room velocity Vr 0.15m/sNC is sound pressure level/Noise CriteriaCurve based on a room absorption of 8dBAll selections include the plenum
Waterloo
FaceplateHeight
Corrections
Z (mm) ‘T’ Throw (m) Pressure (Pa) Noise level (NR)
19 x 1.0 x 1.0 + 026.5 x 0.9 x 0.6 - 134 x 0.8 x 0.5 - 2
RWI Supply
m3/h l/s100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
50 14T 0.2Ps 10Lw -
75 21T 0.3 0.2Ps 22 10Lw 24 -
100 28T 0.4 0.3Ps 35 14Lw 28 21
125 35T 0.5 0.4 0.3Ps 56 22 10Lw 33 25 -
150 42T 0.5 0.4Ps 29 15Lw 28 20
200 56T 0.7 0.6 0.5Ps 45 25 12Lw 34 24 -
250 69T 0.7 0.6Ps 33 19Lw 29 -
300 83T 1.1 0.9 0.8Ps 48 23 9Lw 32 21 -
400 111T 1.2 1.0Ps 37 17Lw 26 20
500 139T 1.5 1.3 1.1Ps 50 24 11Lw 30 24 21
600 167T 1.5 1.3Ps 33 16Lw 28 24
750 208T 1.9 1.6Ps 50 22Lw 34 28
1000 278T 2.3Ps 36Lw 34
1250 347T 2.9Ps 52Lw 38
Exhaust
100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
7-
2122
30 626 -
46 1031 -
13 5 2- - -
23 9 418 - -
36 13 5 224 - - -
52 19 8 329 - - -
91 34 14 6 235 23 - - -
52 21 9 429 15 - -
75 31 13 534 22 - -
48 21 928 - -
84 38 1536 23 -
60 2429 19
Waterloo 2.0 72 Tel: +44 (0) 1622 711511
Circular DiffusersRWK
IntroductionThe Waterloo circular diffuser type RWK has anadjustable radial diffusion pattern and providesexcellent induction characteristics. The diffuser andfaceplate are manufactured from aluminium and theplenum is zintec steel. The shape of both the plenumand the adjustable faceplate ensure an excellent airpattern, and the internal control disc can also beadjusted to achieve high induction rates and a lowsound power level.
Product DescriptionRWK Circular supply diffuser with plain faceplateRWK-R Circular return diffuser with plain faceplateUKDV Supply air plenumUKDVI Insulated supply air plenumUKRV Return air plenumUKRVI Insulated return air plenum
Features• Supply and exhaust applications for heating,
cooling and isothermal conditions
• Excellent induction characteristics
• Variety of air patterns
• Suitable for modular ceiling systems
FinishesPPM9010 (RAL 9010 20% Gloss White)Other colours are available on request
Advantages• Excellent aerodynamic performance• No ceiling effect required• Short throw
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWK + UKDVI
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWK-R + UKRV
Z
7.5
KL
ØD1ØXØA
RWK
Order Example
RWK-250/UKDV-250TypeDiameterPlenum TypePlenum Spigot Diameter
Waterloo
Nom SizeØD1 WxH ØD2 ØA
overallØX
aperture E K L Z
100 210x210 100 190 175 205 55 12.5 19 / 26.5 / 34125 210x210 125 230 215 215 60 20.0 19 / 26.5 / 34160 310x310 160 270 255 295 65 27.5 19 / 26.5 / 34200 310x310 200 370 345 295 70 27.5 19 / 26.5 / 34250 410x410 250 470 440 365 75 35.0 19 / 26.5 / 34315 510x510 315 570 535 435 90 35.0 19 / 26.5 / 34
Waterloo 2.0 73 Tel: +44 (0) 1622 711511
Circular DiffusersRWK
Performance Table
Selection ExampleRWK-125Air Volume 42 I/s
Throw 1.1 mPressure Drop 29 PaNoise Level NR 20
Selection CriteriaCeiling Height 2.7mTemperature Differential -11KAverage room velocity Vr 0.15m/sNC is sound pressure level/Noise CriteriaCurve based on a room absorption of 8dBAll selections include the plenum
RWK Supply
m3/h l/s 100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
50 14T 0.5Ps 6Lw -
75 21T 0.6 0.5Ps 20 7Lw - -
100 28T 0.8 0.7Ps 36 12Lw 20 -
125 35T 1.0 0.9 0.7Ps 50 20 8Lw 24 - -
150 42T 1.1 0.8Ps 29 12Lw 20 -
200 56T 1.3 1.1Ps 48 18Lw 31 -
250 69T 1.4 1.3Ps 28 12Lw 23 -
300 83T 1.7 1.5 1.4Ps 40 16 7Lw 27 - -
400 111T 1.9 1.7Ps 30 13Lw 24 21
500 139T 2.3 2.1 1.2Ps 45 20 7Lw 29 26 -
600 167T 2.5 1.5Ps 30 10Lw 31 21
750 208T 3.1 2.1Ps 48 15Lw 40 28
1000 278T 2.7Ps 30Lw 34
1250 347T 3.5Ps 54Lw 40
Exhaust
100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
7-
17-
27 10- -
39 16 921 - -
51 22 1327 - -
40 23 820 - -
60 36 1426 21 -
53 2020 -
36 12- -
56 1824 21
80 26 1028 24 -
39 1430 23
2429
3232
FaceplateHeight
Corrections
Z (mm) ‘T’ Throw (m) Pressure (Pa) Noise level (NR)
19 x 1.0 1.0 026.5 x 0.9 x 0.6 - 134 x 0.8 x 0.5 - 2
Waterloo
Waterloo 2.0 74 Tel: +44 (0) 1622 711511
Circular Plain Faced DiffusersRWV
IntroductionThe Waterloo circular plain faced diffuser type RWV hasa solid circular face providing a 360° air pattern withexcellent air induction characteristics. This all aluminiumdiffuser is fully adjustable allowing horizontal andvertical discharge patterns.
With their high induction ratios these diffusers ensurerapid primary and secondary air mixing with low noiselevels.
The diffusers are available with zintec steel plenums withthe option of thermal insulation lining on supplyplenums.
Product DescriptionRWV Circular supply diffuser with plain faceplateRWV-R Circular return diffuser with plain faceplateUKDV Supply air plenumUKDVI Insulated supply air plenumUKRV Return air plenumUKRVI Insulated return air plenum
Features• Supply and exhaust applications for heating, cooling
and isothermal conditions
• Excellent induction characteristics
• Variety of air patterns
• Suitable for modular ceiling systems
FinishesPPM9010 (RAL 9010 20% Gloss White)Other colours are available on request
Advantages• Excellent aerodynamic performance• No ceiling effect required• Short throw
Order Example
RWV-160/UKDV-160TypeDiameterPlenum TypePlenum Spigot Diameter
W x H 50
ØD
2
E7.
5
ØD1ØXØA
RWV + UKDVI
W x H 50
ØD
2
E7.
5
ØD1ØXØA
RWV-R + UKRV
7.5
KL
ØD1ØXØA
RWV
Horizontal Jet(Lowered Face Plate)
Vertical Jet(Raised Face Plate)
Waterloo
Nom SizeØD1 WxH ØD2 ØA
overallØX
aperture E K L
100 210x210 100 190 175 205 55 12.5125 210x210 125 230 215 215 60 20.0160 310x310 160 270 255 295 65 27.5200 310x310 200 370 345 295 70 27.5250 410x410 250 470 440 365 75 35.0315 510x510 315 570 535 435 90 35.0
Waterloo 2.0 75 Tel: +44 (0) 1622 711511
Circular Plain Faced DiffusersRWV
Performance Table
Selection ExampleRWV-200(Horizontal throw)Air Volume 139 I/s
Throw 3.6mPressure Drop 28 PaNoise Level NR 30
Selection CriteriaCeiling Height 2.7mTemperature Differential -11KAverage room velocity Vr 0.15m/sNC is sound pressure level/Noise CriteriaCurve based on a room absorption of 8dBAll selections include the plenum
RWV Horizontal
m3/h l/s100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
50 14T 0.7Ps 6Lw -
75 21T 1.2Ps 12Lw -
100 28T 1.6 1.3Ps 20 7Lw 21 -
125 35T 2.1 1.5 1.4Ps 31 11 4Lw 27 - -
150 42T 2.5 1.7 1.6Ps 42 16 6Lw 32 20 -
200 56T 2.1 2.0 1.4Ps 28 11 5Lw 27 - -
250 69T 2.3 1.8Ps 16 8Lw - -
300 83T 2.7 2.2 1.8Ps 23 11 8Lw 25 - -
400 111T 2.9 2.2Ps 18 14Lw 22 -
500 139T 3.6 2.5 2.2Ps 28 21 8Lw 30 20 -
600 167T 4.3 2.9 2.7Ps 40 30 18Lw 33 26 -
750 208T 3.5 3.3Ps 45 26Lw 34 25
1000 278T 4.0Ps 47Lw 34
1250 346T 4.7Ps 70Lw 40
Vertical
100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
1.220-
1.844202.7 2.080 4026 -3.8 3.0 2.0125 60 1632 22 -
3.9 2.690 2426 -5.2 3.7 2.9150 42 2032 22 -
5.0 4.065 3226 206.4 5.2 4.690 46 2231 23 -
7.8 6.781 3928 22
10.0 9.5 7.6127 61 2434 27 -
12.0 10.087 3532 22
14.0 12.0136 5436 27
14.09633
Exhaust
100Dia
125Dia
160Dia
200Dia
250Dia
315Dia
4-
10-
17 5- -
26 924 -
33 13 430 - -
23 925 -
39 14 740 - -
52 20 1037 22 -
33 16 1134 21 -
24 18 627 - -
34 26 1432 28 -
40 2134 25
3132
Waterloo
Waterloo 2.0 76 Tel: +44 (0) 1622 711511
Small Format Circular DiffusersMC
IntroductionThe Waterloo MC diffuser has been designed forboth supply and exhaust applications requiringcompact circular diffusers; unlike conventional highaspiration diffusers the MC has a small overall toneck size ratio. The diffusers are adjustable toproduce horizontal or vertical air patterns.
ManufactureThe MC diffusers are constructed from steel spinningsretained on aluminium spider braces.
Product DescriptionMC Small format circular diffuserLD Butterfly type louvre damperED&LD Equalising deflector & louvre damperBlind Fix Special blind fixing (see below)
Features• Compact frame design
• Robust steel construction
• Adjustable for vertical or horizontal air patterns
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White))PPG9010 (RAL 9010 Gloss White)Other colours available on request
WeightsMC/150 1.0 kgMC/200 2.1 kgMC/300 3.4 kgMC/450 4.8 kg
Accessories
Order Example
MC/150/PPM9010/LDTypeDiffuser SizeFinishExtras
Ceiling cut out
Horizontal diffusion
Duct / Diffuser size
VerticalProjection
Diffuser O/A size
FAC
EC
EILIN
GD
UC
T TO
ØB
57 89
5
ØC
FAC
EC
EILIN
GD
UC
T TO
57 89
5
ØA
LD - Standard arrangementfor supply ducts. Adjustablethrough diffuser face.
ED&LD - Equalisation at stubduct take off with volume control at diffuser face.
StandardScrew through duct
SpecialBlind fixing
Specify when ordering
Diffuser & Overall CeilingDuct Size Diameter Opening
ØA ØB ØC
150 228 203200 305 280300 381 356450 533 508
Waterloo
Waterloo 2.0 77 Tel: +44 (0) 1622 711511
Small Format Circular DiffusersMC
Performance Tables
Supply Horizontal DiffusionRadius of diffusion.Minimum — space covered by one diffuser whichresults in a mean room air movement of 0.25 m/sMaximum — space covered by one diffuser whichresults in a mean room air movement of 0.10 m/s
Supply Vertical ProjectionProjection — downward throw to a terminal velocityvt = 0.5 m/s
Selection ExampleMC/200Total air flow rate 94 l/s
Horizontal Supply ApplicationThrow Min - Max —1.5 - 3.0mNoise Level — NC21Pressure Loss — 21PaExhaust Application
Noise Level — NC23Pressure Loss — 31Pa
Selection CriteriaNC level: equal to the peak sound powerlevel on an NC curve less 8dB for normalroom absorption.Pressure Loss (Pa): static pressure loss of thediffuser.Throw: radius of diffusion and projection —see individual tables
Exhaust
MC Air Volume
150Dia
m3/h 65 126 191 252 317l/s 18 35 53 70 88
Min - Max (m) 0.5-1.0 0.8-1.5 1.0-2.1 1.5-3.0 2.0-4.0Lw - - 18 26 34Ps 2 9 21 37 58
200Dia
m3/h 112 227 338 454 565l/s 31 63 94 126 157
Min - Max (m) 0.5-1.0 0.9-1.8 1.5-3.0 2.0-4.0 2.5-5.0Lw - - 21 31 40Ps 2 9 21 37 58
300Dia
m3/h 256 508 763 1016 1271l/s 71 141 212 282 353
Min - Max (m) 0.7-1.5 1.4-2.8 2.1-4.2 2.8-5.6 5.0-10Lw - 18 29 39 46Ps 2 9 21 37 58
450Dia
m3/h 572 1145 1717 2290 2862l/s 159 318 477 636 795
Min - Max (m) 1.3-2.5 2.5-5.0 3.8-7.6 5.0-10 6.0-12Lw - 21 35 45 53Ps 4 18 41 72 112
MC Air Volume
150Dia
m3/h 65 126 191 252 317l/s 18 35 53 70 88
Projection (m) 0.9 1.5 2.5 3.5 4.6Lw - 17 28 36 43Ps 4 14 33 56 91
200Dia
m3/h 112 227 338 454 565l/s 31 63 94 126 157
Projection (m) 1.3 2.1 3.0 4.3 5.2Lw - 19 31 39 46Ps 4 17 38 65 105
300Dia
m3/h 256 508 763 1016 1271l/s 71 141 212 282 353
Projection (m) 2.0 3.1 4.6 6.3 7.8Lw - 22 34 43 49Ps 5 20 48 80 125
450Dia
m3/h 572 1145 1717 2290 2862l/s 159 318 477 636 795
Projection (m) 3.2 5.0 7.6 10.1 14.2Lw - 27 40 48 55Ps 8 32 75 128 200
MC Air Volume
150Dia
m3/h 65 126 191 252 317l/s 18 35 53 70 88Lw - - 18 26 35Ps 3 11 23 38 56
200Dia
m3/h 112 227 338 454 565l/s 31 63 94 126 157Lw - - 23 33 41Ps 4 15 31 51 76
300Dia
m3/h 256 508 763 1016 1271l/s 71 141 212 282 353Lw - 17 32 42 50Ps 6 23 49 80 120
450Dia
m3/h 572 1145 1717 2290 2862l/s 159 318 477 636 795Lw - 27 42 52 -Ps 10 35 74 120 180
Waterloo
Waterloo 2.0 78 Tel: +44 (0) 1622 711511
Large Format Circular DiffusersWR
IntroductionThe Waterloo WR series is suitable for ceiling orexposed ductwork mounting and includes a rotatingcentral core adjustment feature to provide settings forprojection heating and spot cooling or conventionalhorizontal diffusion.Manufactured from aluminium spinnings, the diffusersare available with a range of dampers and equalisinggrids for effective control of air distribution.
Product DescriptionWR Large format circular diffuserLD Butterfly type louvre damper (sizes 6-18 only)WDD Opposed blade damper (sizes 21-24 only)SD/ED Splitter damper/Equalising deflector
Features• High air handling capacity
• Easily removable central core assembly
• Simple installation
• Maintenance free, quality product
• Core adjustment feature
• Range of accessories
• Suitable for supply and exhaust
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
WeightsWR-6 1.2 kgWR-8 1.5 kgWR-10 2.3 kgWR-12 3.3 kgWR-15 5.5 kgWR-18 7.8 kgWR-21 10.5 kgWR-24 14.0 kg
InstallationRemove core from bayonet fixing and offer diffuserframe into opening.Screw fix through diffuser stack into duct. Replacecore ensuring the bayonet fixing is secure.
Order Example
WR-15/PPM9010/LDTypeDiffuser sizeFinishExtras
DUCT
REMOVABLE CORE
A (DUCT SIZE)
DH
E
FJ
C
BG (OPENING SIZE)
Size A B C D E F G H J6 152 305 340 51 5 136 320 85 61
8 203 407 457 64 5 149 430 85 74
10 254 508 569 86 5 171 530 85 96
12 305 610 680 95 6 180 640 85 105
15 381 762 851 121 6 206 800 85 131
18 457 914 1040 146 24 246 950 100 156
21 534 10801148 173 18 273 1100 100 183
24 610 10801170 173 18 273 1100 100 183
Waterloo
Waterloo 2.0 79 Tel: +44 (0) 1622 711511
Large Format Circular DiffusersWR
Performance TablesHorizontal Diffusion: Supply
Selection CriteriaRadius of Diffusion: The minimum andmaximum throw covered by one diffuser whichresults in an average air velocity in the occupiedzone of 0.25 m/s and 0.10 m/s respectively(based on 3.0m mounting height and 10°Ccooling)NC Level: Peak level on Noise Criteria curvesbased on sound power level re 10-12 W less 8dBroom absorption.Pressure Loss (Pa): Static pressure loss at thesupply duct.Cone Settings:Setting B: Flush for general applications producinghorizontal diffusion (performance as table)Setting A: Projection setting — multiply tabulatedPs x 1.7, add 2dB to NC values.Setting C: Exposed duct setting — multiplytabulated Ps x 0.8, subtract 2dB from NC values.
Exhaust:Ps (exhaust) = Ps (supply) x 1.2NC (exhaust) = NC (supply) + 3dBVertical Projection Data:Projection is based on isothermal supply conditionswith a terminal velocity of 0.5 m/s. Correct forheating, cooling and other Vt.For projection use graph below. For requiredthrow corrected for temperature differential selectsuitable size and neck velocity.Noise generation and Pressure loss: Use the tablefor horizontal diffusion corrected for cone setting.Selection ExampleSize 12 WR diffuser handling 350 l/s produces ahorizontal throw range of 2.1 - 3.9m and an NClevel of 34 with pressure loss of 25 Pa. Withvertical projection (setting A) the resulting throwwould be 10m for isothermal conditions and anNC level of 36 with a pressure of 42 Pa.
Size 6 8 10 12 15 18 21 24
23 4 5 10 20 30
4
5
10
Vn N
eck
velo
city
(m/s
)
Projection (m)
Example
CBA
Vertical Projection - Cone setting A
Projection Factor for Cooling ∆t= 10°C - 1.15
WR Air Volume
6
m3/h 263 328 392 457 522 652l/s 73 91 109 127 145 181
Min - Max (m) 1.0-1.5 1.0-1.8 1.2-2.4 1.5-2.7 1.5-3.0 2.1-3.9Lw 19 27 34 39 43 50Ps 24 37 53 72 95 141
8
m3/h 468 583 677 806 922 1152l/s 130 162 188 224 256 320
Min - Max (m) 1.2-2.1 1.5-2.7 1.8-3.3 2.2-4.0 2.2-4.5 3.0-5.5Lw 24 30 36 40 43 50Ps 21 33 47 64 84 131
10
m3/h 731 907 1095 1278 1458 1825l/s 203 252 304 355 405 507
Min - Max (m) 1.5-2.7 1.8-3.3 2.1-3.9 2.4-4.8 2.7-3.9 3.6-6.7Lw 25 32 38 43 47 54Ps 17 27 39 53 70 109
12
m3/h 1015 1282 1577 1840 2106 2632l/s 292 366 438 511 585 731
Min - Max (m) 1.5-3.0 2.1-3.9 2.4-4.8 2.7-3.9 3.0-6.0 3.9-7.5Lw 26 34 40 45 49 56Ps 16 25 37 50 65 102
15
m3/h 1642 2052 2448 2873 3283 4104l/s 456 570 680 798 912 1140
Min - Max (m) 1.8-3.6 2.4-4.8 3.0-6.0 3.3-6.6 3.9-7.5 4.8-9.5Lw 28 34 40 44 48 55Ps 13 20 29 39 51 80
18
m3/h 2362 2952 3543 4133 4723 5908l/s 656 820 984 1148 1312 1641
Min - Max (m) 2.4-4.5 3.0-6.0 3.6-7.0 4.2-8.1 4.8-9.3 6.0-12.0Lw 28 35 41 46 50 57Ps 10 16 23 32 42 65
21
m3/h 3226 4032 4838 5645 6451 8064l/s 896 1120 1344 1568 1792 2240
Min - Max (m) 4.2-8.4 4.8-9.7 5.4-10.8 6.0-12.0 6.6-13.2 8.1-16.5Lw 33 40 46 50 54 61Ps 7 12 17 23 30 46
24
m3/h 4205 5256 6300 7362 8424 10512l/s 1168 1460 1750 2045 2340 2920
Min - Max (m) 5.0-10.0 5.5-11.0 6.0-12.0 6.5-13.0 8.0-16.0 10.0-20.0Lw 35 41 47 51 55 62Ps 13 21 30 41 56 84
Waterloo
Heating Dt (°C) 5 10 15 20 25 30
Projection Factor 0.98 0.95 0.85 0.75 0.62 0.50
Terminal Velocity Vt (m/s) 0.75 0.50 0.40 0.30
Correction Factor 0.80 1.0 1.11 1.30
Waterloo 2.0 80 Tel: +44 (0) 1622 711511
Aircell Polymer Floor DiffusersWFO WFOV
Order Example
WFOPType
WFOPWFOPV
Ø225 O/A
AA
Ø5 holes on245 PCD
125
Ø125Nom.
Ø100Nom.
Ø211 cutoutØ200
336
4
150
221
23 M
in. T
ile50
Max
. Tile
Ø190
Ø201 hole
20
30 m
in
WFOD
IntroductionThe Waterloo Aircell WFO series floor diffuser offers thechoice of horizontal or vertical air patterns with its flipover design, as well as a host of other unique & patentedfeatures. The WFOV low pressure vertical supply discoffers vertical projection with a 50% increase in airvolume capacity, compared with standard WFO units.The WFO diffuser disc is 200mm Ø and it has beendesigned to resist permanent deformation when subjectedto point loads up to 500 kg and all materials used are fireretardant. The WFOV diffuser disc is suitable for pointloads up to 300kg.
Product DescriptionWFO Pressurised Floor Void - Tile installation suitable
for fitting into standard floor tile thicknesses of upto 50mm, supplied with a locking collar which isscrew fixed to the underside of the tile.
WFOV As above but with low pressure vertical airpattern disc
WFOS Pressurised Void - Slab floor installation suppliedwith a steel adaptor collar which is cast into thefloor slab. The diffuser can then be installed intothe collar with concealed spring clips.
WFOP Ducted installation with plenum supplied with aplenum which simply snap fits onto the lockingcollar. The plenum features a dual spigotconnection to suit 100mm or 125mm diameterducting.
WFOPVAs above but with low pressure vertical air pattern disc
WFOD Step Drilled InstallationThe diffuser disc only is supplied, suitable forinstallation into pre-cut holes in floor tiles.
Features• Unique ‘flip-over design’• Memory locating peg• Easy fit locking collar• Concealed fixing bracket for concrete / slab flooring• Combined damper / dirt tray with incremental damper
positioning• Heavy duty glass reinforced polycarbonate
construction• Snap fit aerodynamic compact plenumFinishWFO diffusers are available in a slate grey finish(RAL 7037 Mid Grey) as standard. Other colours can bespecified subject to a minimum quantity.
Advantages• Ability to change between horizontal and vertical
settings instantly• Commissioning settings are retained once set using the
memory locating peg• Reduced installation time with easy fit locking collar• Quick fit plenum
Waterloo
Waterloo 2.0 81 Tel: +44 (0) 1622 711511
Aircell Polymer Floor DiffusersWFO Standard Performance
Performance Graph
Selection ExampleWFO(Horizontal Setting)Air Volume 25 I/sJet velocity at 1m from the diffuser will be 0.26 m/sfor 3°C cooling Pressure Drop 25PaNoise Level NR 24
HORIZONTAL DIFFUSION
VERTICAL DIFFUSION AT 6°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCI
TY (m
/s)
AIR
VEL
OCI
TY (m
/s)
105 15 20 30 40 105 15 20 30 40AIR FLOW RATE (l/s) AIR FLOW RATE (l/s)
0.5m
1.0m
0.75
m1.
25m
1.5m
1.75
m
0.5m
0.75
m
1.0m
1.25
m
1.75
m
0.1
0.2
0.3
0.4
0.5
AIR
VEL
OCI
TY (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.
0m1.
25m
1.5m 1.75
m
VERTICAL DIFFUSION AT 3°C COOLING
DATA SHOWN IS VALID FORTEMPERATURE CONDITIONSRANGING FROM ISOTHERMALTO 6°C COOLING
Example
Air Flow Rate (l/s)10 15 20 25 30 35 40
Static Pressure Loss (Pa)WFO 5 10 17 25 35 45 56WFOS 5 10 17 27 38 50 —WFOP 7 17 29 45 64 — —WFOD 4 7 12 19 26 35 45
Pressure Loss Data - Both Settings
All pressure loss data is based on a fullyopen damper
Air Flow Rate (l/s)10 15 20 25 30 35 40
NRLP (Ref. 8dB Room Absorption)WFO <15 <15 19 24 29 33 36WFOS <15 15 21 26 30 34 —WFOP <15 18 25 30 35 — —WFOD <15 <15 <15 20 24 28 32
Acoustic Data - Horizontal Setting
All acoustic data is based on a fully opendamper and horizontal diffusion.Reduce tabulated figures by NR3 for verticaldiffusion.
The dotted lines represent the approximatedistances from the diffuser where the jet airtemperature (Ts) is the same as the room airtemperature (Tr).
Waterloo
Waterloo 2.0 82 Tel: +44 (0) 1622 711511
Aircell Polymer Floor DiffusersWFOV Low Pressure Disc Performance
Performance Graph
Selection Example WFOVAir Volume 35 I/sJet velocity at 1.75m vertically from the diffuser will be0.39 m/s for 3°C coolingPressure Drop 20PaNoise Level NR 18
VERTICAL DIFFUSION AT 6°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCI
TY (m
/s)
AIR
VEL
OCI
TY (m
/s)
105 15 20 30 40 50 105 15 20 30 40 50AIR FLOW RATE (l/s) AIR FLOW RATE (l/s)
1.5m 0.5m
0.5m
0.75
m
0.75
m
1.0m
1.0m
1.25
m
1.25
m
1.75
m
1.75
m
VERTICAL DIFFUSION AT 3°C COOLING
Example
Air Flow Rate (l/s)10 15 20 25 30 35 40
Static Pressure Loss (Pa)WFOV 2 4 7 11 15 20 26WFOPV 7 17 29 45 64 — —
Pressure Loss Data
All pressure loss data is based on a fullyopen damper
Air Flow Rate (l/s)10 15 20 25 30 35 40
NRLP (Ref. 8dB Room Absorption)WFOV — — — — <15 18 22WFOPV <15 18 25 30 35 — —
Acoustic data
All acoustic data is based on a fully opendamper.
Waterloo
Waterloo 2.0 83 Tel: +44 (0) 1622 711511
Aircell Polymer Floor DiffusersInstallation
Type WFO & WFOV (Tile installation)Type WFO & WFOV Diffusers are suitable for installation intofloor tiles from 23mm to 50mm thick. A 211mm diameter holeis drilled/cut through the tile. Ensuring the aperture is free fromshavings/rough edges etc, insert the mounting frame into thehole. Locate locking collar onto the underside body of themounting frame and using the webs screw upwards andtighten to the underside of the tile. The main body of the unitshould now be firmly held in position, screw holes areprovided in the locking collar should additional fixing berequired. The combined damper/dirt tray can now bepositioned into the mounting frame. Ensure that the damperairways are open and place location peg into the slotprovided to lock in position.Finally select the air pattern required either vertical orhorizontal by referring to the disc location tab and place intothe aperture ensuring alignment tab engages with the cut outin the mounting frame. To remove the disc use the toolprovided.
Type WFOP & WFOPV (Tile installationwith plenum)Installation as described for WFO. Select plenum inlet spigotsize, if 125 diameter cut off square around markings with ahacksaw, remove swarf with a file and connect to ductworkwith a flexible tie. ‘Snap on’ plenum onto the ridge situated onthe locking collar.To remove the disc use the tool provided.
Type WFOS (Slab floor or wall installation)The steel sleeve is positioned to the customers requirementsand cast into concrete floor/wall slab. Ensure that the sleeveand face flange are free from debris, fit the mounting clamps,screws and cylinder nuts as shown, to the mounting frame,insert into steel sleeve, gradually tighten the screw headclockwise until the cylinder nut has expanded the clip into thesleeve groove. Establish that the mounting frame is secure andinsert damper/dirt tray locking pin, and diffuser disc. There is no requirement for the locking collar so this can bedisposed of.To remove the disc use the tool provided.
Type WFOD (Diffuser disc only)Drill/cut a 211mm diameter hole in the floor, 20.5 mm deep.Ensure the aperture is free of shavings/debris and place thedisc into position. To remove the disc use the tool provided.
Ø201
Ø190
23 M
in. Ti
le
50 M
ax. Ti
le
WFOWFOV
Ø211
WFOS
WFOP
>30m
m
20.5
WFOD
WFOPV
Waterloo
Waterloo 2.0 84 Tel: +44 (0) 1622 711511
Drum Jet DiffusersWDJ
IntroductionThe Waterloo WDJ Drum Jet diffuser is a highcapacity unit specifically designed forwarehouses, sports halls or factory units etcwhere a long throw is required. The WDJ is fullyadjustable to provide a full jet spread anddirectional control.The unit is constructed from aluminium extrusionsand comes complete with brush strips to providea low friction, airtight seal. Standard installationis screw fixing through the face flange.
Product DescriptionWDJ Drum Jet DiffuserOBSS Opposed blade damper
Features• Fully adjustable drum
• Fully adjustable air pattern
• Suitable for sidewall or exposed duct
applications
FinishesRAL 9010 WhiteSatin Anodised Aluminium
Advantages• Long throws• Low resistant friction on drum• Ease of adjustment
Order Example
WDJ-1806/OBSSTypeNumberDamper
No A B W H C D E Weight
906 300 217 261 170 36 87 146 1.5kg1206 376 217 337 170 36 87 146 1.7kg1806 529 217 490 170 36 87 146 2.0kg2406 681 217 642 170 36 87 146 2.5kg2010 579 319 540 271 63 138 207 5.5kg2510 706 319 667 271 63 138 207 6.5kg3010 833 319 794 271 63 138 207 7.0kg3510 960 319 921 271 63 138 207 7.5kg
A
75 BladePitch
B14
WDuct Width
HD
uct H
eigh
t
Adjustable Vanes
Brush Strip Seal
D6
C
30°
30°
WDJ
E
AdaptorFrame
WDJ + OBSS
Waterloo
Waterloo 2.0 85 Tel: +44 (0) 1622 711511
Drum Jet DiffusersWDJ
Selection ExampleWDJ-2406Air flow rate 400 I/sThrow 17.0 mPressure drop 45PaNoise level NR26
Selection CriteriaTemperature differential - 0°C (Isothermal)Terminal velocity - 0.25m/sNR level with a room absorptionfactor of 8dB.
Performance Table
Throw Correction FactorVane Angle 0° 5° 10° 20° 30° 40° 60°Factor 1.0 0.9 0.82 0.68 0.6 0.52 0.4
WDJAir Volume
m3/h 360 720 1080 1440 2160 2880 3600 4320l/s 100 200 300 400 600 800 1000 1200
906Jet Throw 3.5 16
Pa 20 75NC 13 26
1206Jet Throw 2 9.5 22
Pa 12 45 100NC 22 32
1806Jet Throw 5 15 26
Pa 24 48 77NC 16 25 31
2406Jet Throw 3.5 9 17 36
Pa 10 25 45 98NC 10 18 26 34
2010Jet Throw 1.8 4 8 18 34
Pa 12 22 50 80NC 14 20 28 35
2510Jet Throw 3 5 14 25 37 50
Pa 10 12 26 50 75 105NC 11 15 24 30 35 38
3010Jet Throw 2.2 4 10 18 28 40
Pa 10 18 40 50 75NC 10 20 27 32 30
3510Jet Throw 3.2 7.5 15 22 30
Pa 14 25 40 55NC 18 25 30 33
Waterloo
Waterloo 2.0 86 Tel: +44 (0) 1622 711511
Supply Air NozzlesVS3
IntroductionThe Waterloo supply air nozzles series VS3 areused for supplying air into areas requiring longjet throws and low noise levels. By arrangingindividual nozzles in a bank, correspondingthrow distances are considerably increased.
Product DescriptionVS3Supply air nozzleP Plain connectionD Connection to square ductR Connection to circular ductM Regulating damper (125,160 & 220Ø only)B1 Belimo LM24 motorB2 Belimo LM230 motorB3 Belimo LM24-SR motor
Features• Large range
• 3 duct connection types
• Extended throws when arranged in banks
• Low noise levels
• Motorised version available
FinishesNatural aluminium as standardOther colours available on request
Advantages• High air handling capacity• Easy to install• Remote seasonal adjustment on motorised
versions• Easy to clean aesthetic appearance
Order Example
VS3/M/D/B2/125TypeRegulating DamperDuct Connection TypeMotor Type (if required)Nominal Size
Dim. D L1 L2 L3 A
80 80 125 107 102 160100 100 155 120 115 200125 125 225 120 115 250160 160 315 150 145 315220 220 375 150 145 400
D60º
L3
L19
ØA
+68
ØA
-2Ø
A
R
L2
ØA
+68
ØA
+64
Dim. R315 R500 R630 R800
80 • • • •100 • • •125 • • •160 • • •220 • •
Circular Duct Size Availabilities
VS3/R (without motor)VS3/R/B* (with motor)
VS3/M/P(with regulating damper)
VS3/P
VS3/D (without motor)VS3/D/B* (with motor)
Waterloo
Waterloo 2.0 87 Tel: +44 (0) 1622 711511
Supply Air NozzlesVS3
80100
0.2
125160220
0.5
0.3
0.4
0.7
1
1.5
22.5
Size
Ø
Q (l/s)
55
V t (m
/s)
560 700 75015 30 40 85 110 140 200 280 420
L=5m10m
20m 30m
THROW
p(Pa
)
10
40
27
28
Q (l/s)
45
35
32
30
25
Ø80 Ø100 Ø125 Ø160
Ø220
20
150
25
4030
70
50
100
200
300
250
25 30 40 85 140 200 280 560 830
NC
NOISE LEVEL & PRESSURE DROP
Performance Graphs
Correction Factor for Multiple UnitsNº of Units 1 2 3 4NR Level Addition 0 +3 +5 +6Throw Factor 1.0 1.4 1.9 2.0
Selection ExampleVS3/125Air Volume 200 I/sThrow 30.0 mTerminal Velocity 0.48m/sPressure Drop 140 PaNoise Level NC 33
Waterloo
Waterloo 2.0 88 Tel: +44 (0) 1622 711511
Hi-Flo Jet DiffusersRWH RWH-PIntroductionThe Waterloo RWH diffusers have been designed tohandle high air flow rates and provide relatively longthrows which make them particularly suitable forconditioning of large spaces such as halls, auditoria,terminal buildings, warehouses and factories.The diffusers are versatile in application by virtue ofthe novel “reversible and rotatable” core designwhich allows the air jet to be adjusted for bothpattern and deflection. Units may be mountedindividually or in banks, in bulkhead arrangements ordirectly into stub ducts.The diffusers are constructed from aluminiumspinnings supported on a studding and spacerassembly. The core may be rotated through 180° toexpose either a straight or diffused core assembly. Inaddition, the diffuser spigot may be rotated within themounting plate (if supplied) to enable a full 360°adjustment, by releasing the tension bolts.
Product DescriptionRWH Complete diffuser assembly including diffuser
core, spigot and mounting plate (wall orceiling mounting).
RWH-P Diffuser core and spigot only (suitable formounting onto bulkheads or stub ducts thuseliminating the large mounting plate).
Features• Simple and effective air diffusion for large spaces• Long throw characteristics• High air handling capacity• Easy to install and adjust• Reversible core to produce long throw jet or short
throw diffuser patterns• Core rotatable through 360° for “eyeball” jet
direction• Jet may be deflected off axis by up to 15°• Available in four sizes• Multiple outlet arrangements
FinishesPPM9006 (RAL 9006 Matt Silver)PPM9010 (RAL 9010 20% Gloss White)PPG9010 (RAL 9010 Gloss White)Other colours available on request
WeightsSize RWH RWH-P200 1.6 kg 1.2 kg250 2.5 kg 1.8 kg315 4.2 kg 3.1 kg380 5.3 kg 4.1 kg
Order Example
RWH-P/380/PPM9010TypeDuct & Diffuser SizeFinish
Screw or rivetto ducting
ØB
Duc
t
1.5 - 15can be increasedwith longer screw
Clamp fixingto panel
ØA
ØC
Cut
out
ØB
Duc
t
Ducting(By others)
Ceiling or wall panel
Screw fixingthrough plate toceiling or wall
F15G
RWH assemblyDiffuser setting
RWH-P assembly
RWH Diffuser setting
RWH-P assembly
RWH assemblyJet setting
D30 E
Nom. size ØA ØB ØC D E F G200 247 198 235 92 98 22 28250 312 248 285 104 116 34 34315 377 313 350 124 154 47 68380 447 378 415 159 155 80 65
Waterloo
Waterloo 2.0 89 Tel: +44 (0) 1622 711511
Hi-flo Jet DiffusersRWH RWH-P
Performance Table
RWH-P Diffuser Setting RWH-P Jet Setting RWH DiffuserSetting RWH Jet Setting
Terminal Velocity Correction FactorsVt (m/s) 0.2 0.3 0.4 0.5 1.0 1.5Factor 2.5 1.7 1.25 1.0 0.5 0.3
Multiple Unit Correction FactorsNo. of units 1 2 3 4NR addition 0 +3 +5 +6Throw factor 1.0 1.37 1.86 2.06
SWL Spectrum Correction Data By OctavesFrequency (Hz) 125 250 500 1K 2K 4KDiffuser/ 0° -1 +1 +3 +8 +7 0Diffuser/ 15° 0 +2 +4 +8 +7 +2Jet/ 0° -3 -1 +3 +8 +6 +5Jet/ 15° +1 +3 +4 +7 +6 +1
Heating DifferentialSize 5°C 10°C 20°C
RWH-200 1.30 0.90 0.65RWH-250 1.20 0.85 0.60RWH-315 1.10 0.75 0.55RWH-380 1.00 0.65 0.45
15° Core Setting Correction FactorsJet Diffuser
NR addition +11dB +4dBPressure Loss Factor 1.25 1.25
All data is for the diffuser set for 0° deflection andoperating under isothermal conditions in either “jet” or“diffuser” pattern. Correction factors for 15° deflection aregiven below.When diffusers are mounted on a common plate/plenumthe noise level and throw will increase. Correction factors
are given in the table below.NR level = Peak level on NR curves based on SWL ref10-12 W less 8dB room absorption.Throw = Forward distance to the point where the jetvelocity has retarded to a terminal velocity of 0.5 m/s.Ps = Static pressure loss (Pa).
The above data is based on isothermal supply air conditions. To estimate maximum Vertical projection under warmingconditions multiply “jet” throw data above by the relevant factor below.
To estimate vertical projection under cooling conditions multiply throw (to relevantterminal velocity) by factors as follows:-10°C cooling x 1.15 5°C cooling x 1.10
RWH RWH-PAir Volume
m3/h 360 450 540 720 900 1080 1440 1800 2160 2880 3600 4320l/s 100 125 150 200 250 300 400 500 600 800 1000 1200
200Dia
JetThrow(m) 5.7 7.0 8.2 11.5 15.0 17.0
Lw - 18 24 32 38 44Ps 18 28 40 65 110 160
DiffuserThrow(m) 2.8 3.5 4.1 5.8 7.5 8.5
Lw - - 20 31 39 46Ps 18 28 40 65 110 160
250Dia
JetThrow(m) 4.0 5.1 6.0 7.2 10 12.0 16.5
Lw - 17 22 30 36 41 48Ps 6 10 14 21 31 48 80
DiffuserThrow(m) 2.0 2.6 3.0 3.6 5.0 6.0 8.3
Lw - - 14 24 32 38 49Ps 6 10 14 21 31 48 80
315Dia
JetThrow(m) 5.0 6.8 8.5 9.8 13.0 16.0 20.0 26.0
Lw - - 19 24 33 39 44 53Ps 4 8 13 18 30 45 60 105
DiffuserThrow(m) 2.5 3.4 4.3 4.9 6.5 8.0 10.0 13.0
Lw - - - 20 31 39 46 57Ps 4 8 13 18 30 45 60 105
380Dia
JetThrow(m) 5.4 6.8 8.0 10.5 14.0 16.4 22.0 28.0 35.0
Lw - - - 21 28 33 41 48 53Ps 3 5 7 12 20 30 50 70 100
DiffuserThrow(m) 2.7 3.4 4.0 5.3 7.0 8.2 11.0 14.0 17.5
Lw - - - 14 23 30 41 50 57Ps 3 5 7 12 20 30 50 70 100
Waterloo
Waterloo 2.0 90 Tel: +44 (0) 1622 711511
PlenumsFull details of standard plenums are available from Head Office.
Typical standard plenum arrangementwith optional circular or rectangularconnections
Special designs are available to suit nonstandard applications, for example,rooftop air handling units and high levelducting.
Hi-flo Jet DiffusersRWH RWH-P
Waterloo
Waterloo 2.0 91 Tel: +44 (0) 1622 711511
=C C
=
ØD
=B2 O/S
C
C
A O
/S
=B1 O/S
=
=
ØD
1 Element
2 Element
3 Element
4 Element
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
Mounting Plates
Size A B1 ØDØ200 299 299 Ø235Ø250 349 349 Ø285Ø315 399 399 Ø350Ø380 499 499 Ø415
Size A B2 C ØDØ200 299 598 299 Ø235Ø250 349 698 349 Ø285Ø315 399 798 399 Ø350Ø380 499 998 499 Ø415
Size A B3 C ØDØ200 299 897 299 Ø235Ø250 349 1047 349 Ø285Ø315 399 1197 399 Ø350Ø380 499 1497 499 Ø415
Size A B4 C ØDØ200 299 1196 299 Ø235Ø250 349 1396 349 Ø285Ø315 399 1596 399 Ø350Ø380 499 1996 499 Ø415
1 Element
2 Element
3 Element
4 Element
Hi-flo Jet DiffusersRWH RWH-P
Waterloo
Waterloo 2.0 92 Tel: +44 (0) 1622 711511
Supply and Exhaust ValvesVA VB VC
IntroductionA range of high quality valves for supply and exhaustapplications for commercial and industrial projects. SeriesV valves are best applied to air distribution systemshandling relatively low air flow rates within small circularductwork. The valves provide high initial resistance withwide throttling capability which is necessary to offset therelatively high system resistances.All valves are constructed from steel spinnings protectedby a polyester powder gloss white finish. Flanges arefitted with sealing gaskets and all units are supplied asstandard with plated steel mounting subframes.
Product DescriptionVA Supply valve with spindle locknutVB Exhaust valves with spindle locknutVC Exhaust valve with tamper proof screw locking of
inner core
InstallationAll units are supplied with a steel mounting subframewhich should be fixed to the prepared opening.• Cut aperture to suit subframe size shown in table below• Screw subframe into aperture• Offer valve body into subframe and rotate into
bayonet fixing
FinishesStandard - polyester powder gloss whiteOther colours are available on request
Order Example
VA/125TypeSize
ØB
H
ØB
ØD
Exhaust Valve - VC
ØS
ØB
ØD
H
ØS
ØD
H
Supply Valve - VA
Exhaust Valve - VB
VA VB VCØ100 Ø125 Ø160 Ø200 Ø100 Ø125 Ø160 Ø200 Ø100 Ø125 Ø160 Ø200
ØD 137 161 212 249 137 161 212 248 135 165 197 240S 74 97 127 156 74 97 127 156 — — — —B 94 110 145 194 75 100 130 157 87 103 130 155H 47 49 80 75 47 49 60 64 50 47 47 47
Subframe
ØB
ØA
H
SubframeØ100 Ø125 Ø160 Ø200
B 100 125 160 200A 130 155 190 236H 28 29 31 33
Waterloo
Waterloo 2.0 93 Tel: +44 (0) 1622 711511
Supply and Exhaust ValvesVA VB VC
Performance Table
Selection ExampleVA/200Air Volume 80 I/sThrow 2.0 m Pressure Drop 27 PaNoise Level NR25
Selection CriteriaThrow is the radius of diffusion (Vt = 0.2 m/s)(Supply valve VA only).Ps is the static pressure loss (Pa).dBA is the ‘A’ weighted sound pressure levelbased on 8dB room absorption.
VAAir Volume
m3/h 36 72 108 144 180 216 288 360 432 504l/s 10 20 30 40 50 60 80 100 120 140
100 DiaThrow (m) 0.8 1.2 1.9 2.2
Ps 7 19 42 70Lw - 20 25 45
125 DiaThrow (m) 1.4 2.0 2.4 2.8 3.2
Ps 7 18 27 45 65Lw - 20 26 32 37
160 DiaThrow (m) 0.8 1.1 1.5 1.7 2.1 2.6
Ps 8 18 30 40 75 120Lw - 23 28 32 42 47
200 DiaThrow (m) 1.1 1.4 1.6 2.0 2.3 2.7 3.0
Ps 8 13 17 27 42 55 72Lw - - - 25 32 37 43
VBAir Volume
m3/h 36 72 108 144 180 216 288 360 432 504l/s 10 20 30 40 50 60 80 100 120 140
100 DiaPs 9 38 88 145Lw - 20 32 40
125 DiaPs 8 30 70 130 170Lw - - 24 32 37
160 DiaPs 15 35 55 95 130Lw - 20 24 30 35
200 DiaPs 7 13 19 32 55 70 90Lw - - - 27 33 37 41
VCAir Volume
m3/h 36 72 108 144 180 216 288 360 432 504l/s 10 20 30 40 50 60 80 100 120 140
100 DiaPs 22 75 150Lw - 24 33
125 DiaPs 8 32 55 95 130 180Lw - 21 25 29 34 40
160 DiaPs 6 20 42 75 120 160Lw - - 20 26 33 37
200 DiaPs 9 16 24 34 55 85 110 150Lw 20 22 24 27 32 37 43 47
Waterloo
Waterloo
Waterloo 2.0 94 Tel: +44 (0) 1622 711511
Polymer Supply and Exhaust ValvesRPVB
WALL MOUNTING
300
MA
X
34
1. FRAME/FACIA2. DEFLECTION PAD3. INSTALLATION COLLAR4. OPTIONAL FLOW REGULATOR
113
CEILING MOUNTING
FIT FACIA WITH BAFFLE BELOW
1
2
REMOVE DIRECTIONBAFFLE FOR FULLRADIAL AIR PATTERN
4(SUPPLY)
4
1
(EXTRACT)
IntroductionThe Waterloo Aircell RPV air valves are anattractive and versatile form of air terminal foruse as either a side wall grille or ceiling diffuserin supply or extract applications. Moulded inABS engineering polymer to achieve a highquality finish, the units are available in 100mmor 125mm diameter neck sizes and can besupplied with optional pre-set flow regulators.The RPV valve comprises a flanged frame witheither a plain or perforated snap-fit fascia. Theperforated fascia can be configured to giveeither horizontal diffusion or a projection jetusing a concealed deflection pad. Both fasciatypes are fitted with a removable internal baffleto limit the jet spread angle when wall mountedor when ceiling mounted close to a wall. Thisinternal baffle may be simply snapped off togive 360° jet spread.The optional air flow regulators (AR) aredesigned to push fit into the frame to control airin either supply or extract mode and areavailable in three flow settings for each size.The units maintain a constant flow over apressure range of 50-200 Pa.
Product DescriptionRPVB Wall or ceiling application - perforated
fasciaAR121 12 l/s regulator for Ø100AR171 17 l/s regulator for Ø100AR251 25 l/s regulator for Ø100AR175 17 l/s regulator for Ø125AR255 25 l/s regulator for Ø125AR335 33 l/s regulator for Ø125DC1 Installation collar for Ø100DC5 Installation collar for Ø125
InstallationRPV valves simply push fit into circular ducting oroptional installation collar when using flexibleducting. Suitable for mounting in wall or ceilingtiles.
FinishesWhite - standardAll others subject to minimum order quantity
Order Example
RPVB125/AR335/DC5/WhiteTypeSizeRegulator (if required)Installation CollarColour
ØD
20
TYPE RPVB
L2
MAX42
15Ø184
ØA
L1
Wall or ceilinginstallation
Max TileThickness
Reversible airflow regulator (AR)suitable for supplyor extract
Installation collarsuitable for wallor ceiling mounting
Adjustable tabs tosuit installationmethod
Perforatedsnap fit fascia withremovable deflectionpad and direction baffle
ØA ØD L1 L2RPV100 110 97 140 85
RPV125 135 122 150 85
Waterloo 2.0 95 Tel: +44 (0) 1622 711511
Polymer Supply and Exhaust ValvesRPVB
Performance Tables
Selection CriteriaThrow data is presented in table 1 for ceilingand wall installations and is based onisothermal conditions to a terminal air velocityof 0.25m/s.The ceiling installation data is for a partialradial pattern with the internal baffle fitted andthe fascia in a lowered position. Removing thebaffle produces a full radial pattern andreduces the throws by a factor of 0.85.Data for wall installations is based on aconfined jet and assumes that the valve ismounted within 300mm of the ceiling.Static pressure loss data presented in tables 1& 2 is valid for wall or ceiling valveconfigurations and is based on units fitted with
the internal baffle. Removal of the bafflereduces the pressure loss by a factor of 0.65.Noise data is shown in terms of sound powerbased NR levels (NRlw). Corrections factorsshould be applied as appropriate to theinstallation conditions to obtain the averagesound pressure based NR level. The data isbased on units fitted with the internal baffle.
Selection Example RPVB/125Air Volume 25 I/sThrow ceiling 5.5 m, wall 5.6m Ps pressure drop 16 PaNRlw <20
RPVBAir Volume
m3/h 36 54 72 90 108 126 144l/s 10 15 20 25 30 35 40
RPVB 100Dia
Throw (m) ceiling 3.6 4.7 5.7Throw (m) wall 3.3 4.1 4.7
Ps 2 4 8Lw - - -
RPVB 125Dia
Throw (m) ceiling 5.0 5.5 6.0 6.2 6.6Throw (m) wall 4.9 5.6 6.2 6.9 7.5
Ps 10 16 24 33 43Lw - - 20 26 32
RPVBAir Volume
m3/h 36 54 72 90 108 126 144l/s 10 15 20 25 30 35 40
RPVB 100Dia
Ps 3 5 10Lw - - -
RPVB 125Dia
Ps 13 21 31 43 56Lw - 20 26 32 38
RPVBAir Volume
m3/h 43 61 90 119l/s 12 17 25 33
RPVB 100Dia
Supply 40 47 53Extract 25 31 40
RPVB 125Dia
Supply 36 37 38Extract 22 27 32
Table 1: Supply Air Valve Data - Ceiling and Wall Installation
Table 2 : Extract Air Valve Data
Table 3 : Air Regulator Acoustic Data at 50 Pa - Supply and Extract
Waterloo
WaterlooWaterloo Air Products PlcMills Road Aylesford Maidstone Kent ME20 7NB Tel: +44 (0)1622 717861Fax:+44 (0)1622 710648web: www.waterloo.co.ukemail: [email protected]
Waterloo 2.0 Tel: +44 (0) 1622 711511
All products conform to the Terms and Conditions of Waterloo Air Products Plc a copy ofwhich are available upon request.
Due to our continuous research and development programme, Waterloo Air Products plcreserve the right to alter products and prices without prior notification.
Copyright Waterloo Air Products plc 2005
Designed, Produced and Published by Waterloo Air Products pl,c, UK & Waterloo Bv NLPrinted in the Netherlands
September 2005
Waterloo declare that, at the time of print , all products are in accordance with relevantdirectives, as identified by HEVAC and other European Organisations, and will displaythe CE Marking where required.
GRILLES
A complete range of products suitable for all wall, ceiling and floorapplications. Most grilles are made from aluminium, and have a range offixed or moveable blades designed to give performance whilst remaining
aesthetically pleasing to the eye. Grilles are made to customer specified sizes,and colours (PPM/G); standard colour is PPM9010 (20% gloss white).
This range is complemented by the Aircell range of polymer Grilles andDiffusers.
AIR VOLUME DAMPERS
A complete range of pressure independent Variable air Volume and Constant airVolume dampers. Most volume dampers are regulated with an electronic motorand sensors, and are calibrated to customer specifications before delivery. Theconstant air volume damper requires no power source as it is controlled via a
mechanical device it is also calibrated before delivery.
All volume dampers are made from Zintec plate and all units (except CVD) can beordered with a single or double (with insulation) skin.
DIFFUSERS
A complete range of products designed to be installed in various ceilingsystems. Most diffusers are made from aluminium, and can be ordered with orwithout plenum chambers for easy connection to duct work. Diffusers can be
ordered in customer specified (PPM/G) colours; standard colour is PPM 9010(20% gloss white).
This range is complemented by the Aircell range of polymer Grilles andDiffusers.
EXTERNAL LOUVRESThe finest quality range of products for external wall applications. Rain water
leakage is controlled through the use of specially designed blades that direct theflow. Made from aluminium, with birdscreen or insect screen options.
All louvres are made to customer specified sizes and (PPM/G) colours; standardcolour is PPM 9006 (matt silver)
ACTIVE BEAMS
The finest quality range of high output active beams, used for ventilated heatingand cooling applications. These units have 4 pipe coils to allow heating and
cooling circuits to run simultaneously, giving constant and responsive control. Thedesign allows a large optimum capacity, and also allows the customer to specify
the nozzle type and pitch for individual circumstances.
Active beams are made from steel to a large range of customer specified sizesand as such are suitable for various different ceiling systems. Standard finish is
PPM 9010, however other (PPM/G) colours are available on request.