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1 Barrel Slot Diffusers CSBP / CSBF he High Induction Barrel Slot Diffuser, type CSB, is the latest addition to our already comprehensive range of slot diffusers. An attractive and efficient design makes the CSB ideally suited to a huge variety of applications. applications. Close pattern control gives the CSB its highly adjustable air distribution characteristics, over much shorter runs than have previously been achievable. Constructed from etruded aluminium and ABS FR, the CSB is designed to integrate seamlessly into any installation. In ceiling, sidewall and bulkhead applications, the CSB will provide horizontal or vertical projection, and is suitable for both supply and ehaust ventilation. Product description CSBF Standard flange for general purpose CSBP Narrow flange for flush/recess mounting ENDS End caps PBHLB Plenum bo to suit, 1 4 duct connections PHB Plenum hanging bracket DHB Dummy section hanging bracket Features One to four slot High induction characteristics Modular design Fully adjustable close control air pattern Consistent facia appearance Can be fitted in continuous runs Full length plenum flow distribution baffle included Standard single lengths up to 1800 mm Standard finishes PPM0 Matt White PPG0 Gloss White PPM006 Matt Silver PPM Polyester Powder Matt % gloss PPG Polyester Powder Gloss 80% gloss Other colours are available upon request (an etra charge will apply) Diffuser weights including plenum CSBF/PS1 kg/m CSBF/PS3 kg/m CSBF/PS2 7kg/m CSBF/PS4 12kg/m Dimensions A B CSBF B CSBP D C CSBF C CSBP E F G Length Width CSBF Width CSBP Dimensions for CSB CSB 1 S1 CSB 1 S2 CSB 1 S3 CSB 1 S SPIGO DIAMEER SPIGO DIAMEER + 1. SPIGO DIAMEER Flange dimensions F Flange P Flange Ceiling cut out openings CSB 1 S1 CSB 1 S2 CSB 1 S3 CSB 1 S4 Nom + mm One way throw left One way throw right O/A Height from Ceiling face to op of plenum B Nominal I/S Dim ( D + 0mm) Dim to Ceiling Face E Nozzle No of Slots Length Ends Finish Flange width F 1 A + 2mm Plenum I/S Dim A O/A diffuser face 'C' wo way throw Vertical throw 3 Sigot diameter D 6 Flange thickness G CSBF/1/S4/00/ENDS/PPM0 Diffusers

2 Barrel Slot Diffusers CSBP / CSB F Selection Criteria Ceiling height is 2.7 m. Increase throw by 1 m for every 1 m increase in ceiling height. Apply factor to throw values () of 1.1 for isothermal conditions or vertical diffusion, and 1.1 for degrees of heating. For heating applications and vertical diffusion apply a factor. Noise level is based on diffuser sound power level less 8d b room absorption. Selection Eample 2 Slot/80 Air flow rate 80 /m hrow 6.3m drop 41Pa Noise level 42dBA Performance parameters for supply include plenums. Corrections for length Active Length Noise level dba hrow Multiplier NOE: hrow data for room velocity (V R ) of 0.1m/s Performance Nomogram (Horizontal diffusion) AIR FLOW RAE per m length 0 0 hrow (m) V = 0. m/s Nº OF SLOS PRESSURE DROP (Pa) dba LEVEL Pivot Line

3 Diffusers Linear Slot Diffusers CSF CSP CSS & E CSWR he small format continuous slot diffuser series CS has for many years set the industry standard in terms of highest aerodynamic and acoustic performance. he CS range is ideally suited to variable volume applications due to its ecellent low flow rate air diffusion characteristics and high air handling capacity. he novel air pattern control element design allows any air diffusion to vertical projection, without any change in the facial appearance. CS diffusers are suitable for all commercial and industrial projects requiring single or multislot diffusers for ceilings, bulkheads or sidewall supply and ehaust. Diffusers are manufactured from aluminium alloy etrusions fied or clipped to cross stays allowing easy removal of internal vanes and pattern control elements. CSF Standard flanged general purpose CSP Narrow flange for flush / recess mounting CSS&E Supply and Ehaust (or dual supply) system diffuser CSWR Plank Replacement Unit Ends End caps ED Equalising Deflector Features High air handling capacity Standard 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 Performance Nomogram Finishes AIR FLOW RAE MAXIMUM RADIUS PPM006 (RAL 006 Matt Silver) per m length OF DIFFUSION (Horizontal) PPM0 (RAL 0 % Gloss White) Vr = 0. m/s (V t = 0.2 m/s) PPG0 (RAL 0 Gloss White) Other colours available on request Weights N kg/m 600 N = number of slots 00 Sizes Standard from 1 to 8 slots wide 0mm 0 2 long (ecluding ends). Continuous diffuser lengths are supplied in sections for butt jointing on site. (Alignment plates supplied) Length corrections Active Length (m) dba Reduction hrow multiplier CSF/00/S1/PPM0/ENDS Length Nº of slots Finish End caps PB PLS D G MEDIUM RADIUS OF DIFFUSION (Horizontal) Vr = 0.1 m/s (V t = 0. m/s) C CSF 1 slot 46 2 slot slot slot slot slot slot slot VERICAL PROJECION Vt = 0.2 M/S dba LEVEL Horizontal diffusion & ehaust air E F MINIMUM RADIUS OF DIFFUSION (Horizontal) Vr = 0.2 m/s (Vt = 0.8 m/s) 21 PRESSURE DROP (Pa) Horizontal diffusion Ehaust E F C CSP Selection Eample (2 Way hrow) Selection Eample (1 Way hrow) Slots CSF C E F CSP CSS & EF C E Flush E Recess F C E Nº of Slots (Supply or Etract) F Nº OF SLOS

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5 Diffusers Linear Diffusers Plenum Chambers Correct selection and sizing of distribution plenum chambers and neck reducers is critical because terminal air resistance is very low relative to the distribution ductwork resistance. It is therefore recommended that whenever possible terminals are served by low velocity stub ducts from branch ducting systems fitted with correct balancing controls. Where it is necessary to specify and use plenums, a generous allowance for commissioned noise generation should be made. A similar effect results from use of neck reducers with circular duct connections because the reduced duct area will cause generally higher velocities and hence increased risk of noise generation. PBHL Highline Plenum chamber PBLL Lowline Plenum chamber SE Side Entry spigot E op Entry spigot EE End Entry spigot CC Circular connection RC Rectangular connection LINED 6mm O fire rated acoustic lining BAFFLE Perforated plate for more even air flow to diffuser Installation he plenum boes and neck reducers are supported by 4 drop rods through a locating hole positioned near each corner. When ordering plenum chambers please specify length width & height, spigot size and position (top or side entry) and control options. Please note that the plenum height should in general be 0mm greater that the spigot diameter (side entry applications). Note: Actual spigot diameter in nominal 3mm (ie 0mm is 17mm actual). Note: Plenum length is determined by linear diffuser selection. Recommended ma air volume for 3dBA based on recommended spigot sizes meter Diffuser Spigot diameter 0 mm Highline plenum chamber 6 3 FDC Cord operated flap damper for mounting within circular spigots to plenum chambers. PBHL/CSF/ / / /SE//1CC/Lined/Baffle Plenum Chamber Length Plenum Chamber Width Plenum Chamber Height Entry Spigot Size Spigot Connections Option Option Control Options OBCO Cord operated opposed blade damper for installation within square or rectangular plenum spigots. Performance Nomogram Width (mm) Spigot diameter (mm) Pivot Line 12Ø 160Ø 0Ø Ø 31Ø 0Ø 00Ø Height (mm) Rectangular or square spigot Spigot air velocity (m/s) Height 23 Air flow rate () FDQ Lowline plenum chamber Width Flapdamper with eternal quadrant control for mounting within circular spigots to plenum chambers. Eample Spigot Air Velocity Selection Guide m/s dba Diffuser pressure loss (Pa) Plenum dimensions Width (mm) 1 slot Standard CS Slot Widths 2 slot 3 slot 4 slot slot 6 slot 7 slot 8 slot Pivot Line OBSS / ED Standard opposed blade damper for diffuser or duct mounting Height (mm)

6 Louvred Face Diffusers DF MD DE DFA he series D multicone diffusers, constructed from aluminium alloy etrusions with mitred and welded/cleated frames, are ideal for most commercial projects requiring high quality diffusers for integration with a variety of ceiling types. he range is available with frame styles and 14 different air pattern control core designs for vertical and horizontal diffusion. DF/MD DF8 DF16 DE DFA OBSS OBLL PBD NR/D Features Five frame styles for integration with most ceilings 14 core styles to suit required air pattern Lightweight aluminium construction Fied or adjustable patterns Suits 0, 00,600 & ceiling grid systems Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Weights DF/DE/DFA 12. kg/m 2 face area OBSS/ED. kg/m 2 face area Sizes Series DF/DE Flanged horizontal blow diffuser 8mm Drop tegular tile replacement, & mm neck sizes 16mm drop tegular tile replacement, & square necks Recessed frame horizontal blow diffuser Flanged adjustable diffuser for horizontal or vertical projection (4 way only) Opposed blade damper Lever operated damper via the diffuser face Plenum bo op entry neck reducer Minimum size duct size Maimum size 600 duct size 24 Nom. + 7 Nom. 3 Nom. 6 Nom DF / MD Nom. + 7 Nom. Nom DE Nom Nom Series DF8/16 Miniumum size duct size (00mm tile replacement) Maimum size duct size (600mm tile replacement) 78 Series DFA Standard increments of 7mm only Minimum size duct size Maimum size duct size Nom DFA 4.8 Nominal + 2 i/s stack Nominal 16 o/s damper Duct width Duct height Finish Damper DF41/0/0/PPM0/OBSS DF16 Frame 16 OBLL damper Lever operation at diffuser face. Suitable for core 41 only DF 16 and DF 8 DF8 Frame 8 OBSS damper Operated by screwdriver after removing core. Suitable for all types

7 Diffusers Louvred Face Diffusers DF DE Selection Criteria Ceiling height 2.7 m emperature differential K Radius of diffusion Minimum and maimum throw which results in an average air velocity within the occupied zone of 0.2m/s and 0.m/s respectively. Noise level is based on diffuser sound power level less 8db room absorption. Ehaust & OBSS corrections Supply diffuser + 0dB Pa Supply diffuser + OBSS + 3dB Pa Ehaust diffuser + 3dB Pa 1.1 Ehaust diffuser + OBSS +13dB Pa 1.1 Selection Eample DF41/00 Air flow rate 22 hrow m otal Loss 23 Pa Noise level dba 2 Performance able DF DE Supply otal pressure drop (Pa) Min Ma (m) 1 Min Ma (m) 23 Min Ma (m) Min Ma (m) Min Ma (m) Core Note: Please refer to website for rectangular. Performance able DF DE Supply Core otal pressure drop (Pa) Min Ma (m) Min Ma (m) Min Ma (m) Min Ma (m) Min Ma (m)

8 Louvred Face Diffusers DF DE core 2, 31 & 41 Performance able 1 23 DF DE Supply otal pressure drop (Pa) Min Ma (m) Min Ma (m) Min Ma (m) Min Ma (m) Min Ma (m) Core DF DE Core 31 L L Supply S = Short side throw L = Long side throw otal pressure drop (Pa) S Min Ma (m) L Min Ma (m) S Min Ma (m) L Min Ma (m) S Min Ma (m) L Min Ma (m) S Min Ma (m) L Min Ma (m) S Min Ma (m) L Min Ma (m) S DF DE Supply Core 41 otal pressure drop (Pa) Min Ma (m) 1 Min Ma (m) 23 Min Ma (m) Min Ma (m) Min Ma (m)

9 Diffusers Louvred Face Diffusers Blanking Plates (For 4 way core) 27 B C D E F G H J K B core 41 4 way (Neck ) UNBLANKED BLANK B BLANK B BLANK B BLANK B B

10 Louvred Face Diffusers E & J core 41 3 way (Neck ) 28 Level BLANK E dba dba Level BLANK J Level dba BLANK J Level dba BLANK J BLANK J D & H core 41 2 way opposite (Neck ) E J BLANK D BLANK H BLANK H BLANK H BLANK H D H

11 Diffusers Louvred Face Diffusers C & G core 41 2 way corner (Neck ) BLANK C BLANK G BLANK G BLANK G BLANK G F & K core 41 1 way (Neck ) C G BLANK F BLANK K BLANK K BLANK K BLANK K F K

12 Louvred Face Diffusers DFA core 41 Performance able Selection Criteria Ceiling height 2.7 m emperature differential K Radius of diffusion Minimum and maimum throw which results in an average velocity within the occupied 0.2m/s and 0.m/s respectively. Noise level is based on diffuser sound power level less 8db room absorption. Selection Eample DFA 41 / 0X0 Horizontal Diffusion Air flow rate 22 hrow 1. m otal Loss 21 Pa Noise level <dba Ehaust & OBSS corrections Supply diffuser Supply diffuser + OBSS Ehaust diffuser Ehaust diffuser + OBSS + 0dB Pa + 3dB + 3dB Pa Pa dB Pa 1.1 DFA41 Horizontal diffusion (Cones fully lowered) Δt = C cooling DFA41 Isothermal vertical projection (Cones fully raised) Min Ma (m) Pa Min Ma (m) Pa Min Ma (m) Pa Min Ma (m) Pa Min Ma (m) Pa Projection Pa Projection Pa Projection Pa Projection Pa Projection Pa DFA41 Projection Pa Projection Pa Projection Pa Projection Pa Projection Pa Heating vertical projection (Cones fully raised) Δt = C heating (correct for other temp.) erminal Velocities For Isothermal Vertical Projection Vt (m/s) Factor emperature Differentials For Heating Vertical Projection t ( C) 1 2 Factor

13 Diffusers Aircell Diffusers M0 M M00 M600 he Aircell M series presents all the cost and design advantages of the 00 series with the visual appeal of clean, unbroken lines on the traditional multicone design. he diffusers are available in a range of sizes to integrate with standard 0mm and 600mm ceilings and the 00mm and 600mm European systems. M0 M M00 M600 O P F BM R600 Features Contemporary style designed for visual integration with luminaires and other ceiling elements Ease of installation with concealed, single point fiing into P series plenum or rigid ducting Full range of integrated accessories available including directional or core blanking kits, universal plenums and opposed blade dampers Finishes Weights M0 0.6 kg M 1.4 kg M kg M kg 0 sq diffuser sq diffuser 00 sq diffuser 600 sq diffuser Black polymer opposed blade damper Black polymer plenum bo Fiing kit Blanking kit Reducer with 312 Ø spigot Diffusers are selfcoloured white Damper and plenum are selfcoloured black Authority Patents: 2221, 22238, others pending Registered Designs: 2716, 6216 Fire Rating: BS476 Pt 7 Class 0. BS476 Pt, P Rating. BS 2782 Method 08A, Zero Rate of Burn. Performance tested to BS , ISO 21. Maimum supply air temperature must not eceed 0 C M I/s P s P s P s P s P s A E Performance able P s P s P s P s P s P s P s P s P s 1.2 Supply M F (opening size) B (o/a neck) M M Blanking arrangements E Supply C D 31 Supply M Etract Etract Etract M M M00 M way 3 way 2 way 2 way 1 way Aircell M0/O0/P0/F0/BM0 Damper Plenum Fiing Kit Blanking Kit Aircell M A B C D E F M M M M

14 Aircell Diffusers 2600 he Aircell 00 series presents a contemporary diffuser style combining high performance and robust construction with the significant cost advantage of injection moulded engineering polymers. he diffusers are available in 2 sizes to integrate with standard 0mm or 600mm layin or concealed ceiling systems. 0 sq diffuser sq diffuser O Black polymer opposed blade damper P Black polymer plenum bo F Fiing kit B Blanking kit Features Contemporary style designed for visual integration with luminaires and other ceiling elements Ease of installation with concealed, single point fiing into P series plenum or rigid ducting Full range of integrated accessories available including directional or core blanking kits, universal plenums and opposed blade dampers Finishes Diffusers are selfcoloured white Damper and plenum are selfcoloured black Weights 0.6 kg kg Authority Patents: 2221, 22238, others pending Registered Designs: 2716, 6216 Fire Rating: BS476 Pt 7 Class 0. BS476 Pt, P Rating. BS 2782 Method 08A, Zero Rate of Burn. Performance tested to BS , ISO 21. Maimum supply air temperature must not eceed 0 C. A E Performance able 00 Supply Air 3 m /h F (opening size) B (o/a neck) E 4 way 3 way 2 way 1 way (m) Ps (m) Ps (m) Ps (m) Ps (m) Ps (m) 2.3 Ps (m) Ps (m) Ps (m) Ps (m) Ps (m) Ps C D 32 Supply way 3 way 2 way 1 way Ehaust Blanking arrangements Aircell /O0/P0/F0/B0 Damper Plenum Fiing Kit Blanking Kit 4 way 3 way 2 way 2 way 1 way Aircell 00 A B C D E F

15 Diffusers Aircell Diffusers Controls and Fiing Options Performance he unique integrated design of the plenum, damper and diffuser assembly has been specifically developed to promote smooth flow lines, ensuring an eceptional aerodynamic and acoustic performance. Aircell products can be used in any air distribution systems where temperatures do not eceed 0 C. he components have been tested to BS4773 Parts 1 & 2 to provide comprehensive, easy to use selection data for all installation options. Opposed Blade Damper O he O series opposed blade damper is designed to integrate with the plenum and diffuser range to provide a simple means of flow regulation from the diffuser face. he unit is designed to snap fit into the universal plenum, or alternatively can be easily screw or rivet fied into steel ducting using the inbuilt mounting lugs. Manufactured in black engineering grade polymer, the damper is inherently smooth and positive in operation. Plenum P he P series plenum is aerodynamically profiled to provide ideal flow conditions with either top or side entry duct arrangements. Manufactured in black engineering grade polymer, the design incorporates features such as internal guide vanes to reduce air turbulence, and snapin locks to retain the opposed blade damper and diffuser mounting bar. he plenum can be fied to the ceiling grid or suspended by drop rods from the slab. Either fiing method is carried out using patented mounting brackets which simply slide into the plenum retaining slots. Neck Reducer R600 he R600 snapfit neck reducer is available as an option to convert the P600 plenum spigot from 37 Ø to 312 Ø. Model A B C D E O O O P P P Note: Specially designed clips mean that you can use a type O damper with a diffuser without a universal Plenum. Universal plenum type P Face operated opposed blade damper type O Diffuser fiing bracket type F for fiing tro plenum or duct Aircell diffuser Captive fiing bolt Removable core 0 B A Ø E Ø 312 C 0 B 'O' damper 7 7 D o/s stack 'P' plenum Ø 0 R600 neck reducer

16 Perforated Face Diffusers CPD CPDE he CPD range of diffusers have been designed for use in commercial applications and are particularly suited to projects with high air change rates and high cooling differentials. CPD diffusers are suitable for installation in 0, 600 and mm tile module systems and the range includes square and rectangular types. he aluminium face plate may be pivoted down and removed to ease installation, commissioning and maintenance and is held closed by spring clips. he diffusers are constructed from aluminium etruded frames and perforated face plates with plated steel, square, rectangular and circular connections suitable for top entry ducts. CPD2 2 way perforated face supply diffuser CPD3 3 way perforated face supply diffuser CPD4 4 way perforated face supply diffuser CPDE Ehaust air perforated face diffuser OBSS Opposed blade damper for square / rectangular connections LD Louvre damper for circular connections Features Integrate with 0, 600 and mm tile sizes All aluminium face construction Pivoting, removable face plate Range of four sizes High air handling capacity Supply or ehaust diffusers visually compatible Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Free Area 4% W o/a W 2 A B o/s nominal duct size H 2 H o/a Square Neck Supply Diffuser Corrections CPD/00/ as Ø 6dB Pa 0.6 CPD/600600/0 0 as 0Ø 6dB Pa Unit size W H Ø D A B Weight (kg) CPD CPD CPD CPD CPDE CPDE CPDE CPDE H 2 CPD/OBSS Ø D o/s nominal duct size CPD/4/0/0/ DIA/PPM0/LD Pattern Nominal Width Nominal Height Spigot Size Finish Damper Ceiling opening = H CPD/LD

17 Diffusers Perforated Face Diffusers CPD CPDE Performance able CPD 4 way 3 way Sizes Spigot size Ø Ø Ø Ø 0 0 Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] Static Loss [Pa] Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] Static Loss [Pa] Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] Static Loss [Pa] Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] Static Loss [Pa] Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] Static Loss [Pa] Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] Static Loss [Pa] 14 Air Flow Rate m 3 /h hrow Short Side Min.Ma. [m] hrow Long Side Min.Ma. [m] Noise Level [dba] 4 0 Static Loss [Pa] way Ehaust Ø Ø Deflection Patterns CP D4 CP D3 CP D2 CP DE 4 way 3 way 2 way Ehaust Nominal Deflecting Pad Size Size (mm) CPD4 CPD3 CPD

18 Perforated Face Diffusers KRCP KRCPE he KRCP range of diffusers have been designed to suit 600mm square ceiling modules of Burgess type, layin and concealed arrangements. he diffuser incorporates an easily removable perforated face plate and adjustable inner multicone pattern control cores which produce an efficient 4, 3, 2 or 1 way air diffusion pattern. Matching ehaust units are available. he control cores are available as separate items to facilitate simple on site changes. his diffuser may be applied to most commercial projects, but as the frame detail incorporates an anti smudge ring it is ideal for kitchen and restaurant applications. he range is suitable for systems involving air change rates up to per hour and cooling differentials up to 14 C. KRCP Perforated face supply diffuser KRCPE Perforated face ehaust diffuser OBSS Opposed blade damper for square connections LD Louvre damper for circular connections Features Easy maintenance Antismudge frame Pivoted front plate Adjustable pattern control cores Versatile ceiling integration Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Sizes All diffusers are 6 6mm overall. Available spigot sizes are as follows: KRCP Ø 0 KRCPE, 0 0 or Ø 0 Weights KRCP.7 kg KRCPE 3.7 kg OBSS 4.0 kg m 3 /h KRCPE Nominal Width Nominal Height Spigot Size Finish Damper Spigot Ehaust Spigot Ø 0 Pa 1 6 Pa 4 22 Pa Pa Pa KRCP/600/600/0 DIA/PPG0/LD Ø 27 O/S KRCP I/S NECK KRCPE SQ OBSS OPION 7 6 SQUARE O/A SQUARE FACE OPENING 7 22 Performance ables m 3 /h KRCP way throw KRCPE 0 SQ OBSS OPION KRCPE LD OPION 3 way throw long side Supply 3 way throw short side 2 way throw 6. 1 way throw Pa Pa Pa Pa

19 Diffusers Fied Blade Swirl Diffusers SDFC SDFS Air Products range of fied blade swirl diffusers presents an attractive and aerodynamically efficient alternative to conventional circular or square ceiling air terminals. he diffusers are designed to produce a horizontal, radial air pattern with a turbulent, high induction jet characteristic and are ideally suited for applications with high heating or cooling differentials. Manufactured from aluminium with press formed blades, the units are available in a range of si ISO sizes in either circular (type SDFC) or square format (types SDFS) and can be supplied complete with a duct mounting collar for easy assembly. he steel duct mounting collar can be used as a means of fiing and supporting the diffuser from rigid ductwork, or alternatively, ceiling support brackets (supplied on request) can be fitted for use with fleible ducting. SDFC Circular face swirl diffuser SDFS Square face swirl diffuser DM*** Duct collar WP*** Side entry plenum bo Performance able (*** is replaced with nominal size) SDFC see order eample SDFS FDC1 Cord operated flap damper FDQ1 Quadrant operated flap damper Jet hrow LINED 6mm Class O fire rated acoustic lining Duct 2 3 Please note the duct collar is not required 12 Plenum when ordering diffusers with plenums. Ps Duct Sizes Ps Plenum See table Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request SDFC Size Diffuser + Collar Plenum 12 Ø 0.3 kg 1.6 kg 160 Ø 0.4 kg 1. kg 0 Ø 0.6 kg 4. kg Ø 0.7 kg.1 kg 31 Ø kg 7.4 kg 0 Ø 1. kg. kg SDFSGrid Size Diffuser + Collar Plenum kg For plenum weights kg use data above kg based on nominal kg neck size SDFS//16/00/PPM0 /DM /WP/FDC1/LINED Nominal Size Frame Style & Grid (if square diffuser) Colour Finish Duct Collar (DM) or Plenum (WP) Plenum Spigot Damper (if required) Acoustic Plenum Lining (if required) C 6 H 0 ØG ØD1 o/s S D FC Ø A S D FC Duct mounting collar Ceiling support brackets E *7 6 H o suit nominal grid type & size *12 WIH QUADRAN OPERAED FLAP DAMPERS. ØD1 o/s Edge detail to suit grid type as shown below ØD2 S D FS o suit nominal grid type & size S D FS Supply Air m 3 /h meter Jet hrow Duct 2 38 Plenum Ps Duct 21 2 Ps Plenum Jet hrow Duct Plenum 27 3 Ps Duct Ps Plenum Jet hrow Duct Plenum Ps Duct Ps Plenum Jet hrow Duct 27 3 Plenum Ps Duct Ps Plenum Jet hrow Duct Plenum Ps Duct Ps Plenum For ehaust applications add 3dB to the dba level and multiply pressure loss by 1.1 Please note a 00 grid is only available for an eposed layin type, and with neck sizes up to Ø. Nom. Size Ø A Available Grid Sizes for SDFS F 12 0 C Ø D1 Ø D2 E F Ø G H , 00, 600 or , 00, 600 or , 00, 600 or , 00, 600 or , 600 or , 600 or

20 Perforated Face Swirl Diffusers SDFSP Air Products range of perforated face, fied blade swirl diffusers presents an attractive and aerodynamically efficient alternative to conventional circular or square ceiling air terminals. he diffusers are designed to produce a horizontal, radial air pattern with a turbulent, high entrainment jet characteristic and are ideally suited for applications with high heating or cooling differentials. Manufactured from aluminium with press formed blades, the units have an aesthetically pleasing perforated face which has Ø 4.mm holes on an 8mm 4 pitch, giving a free area of 4.7%. hey are available in a range of 4 standard ISO sizes in 3 different frame configurations to suit 4 nominal ceiling grid sizes. he steel duct mounting collar can be used as a means of fiing and supporting the diffuser from rigid ductwork, or alternatively, ceiling support brackets (supplied as standard) can be fitted for use with fleible ducting. SDFSP Perforated face swirl diffuser SDFSP SDFSPE Perforated face etract diffuser DM*** Duct collar WP*** Side entry plenum bo (*** is replaced with nominal size) see order eample FDC1 Cord operated flap damper FDQ1 Quadrant operated flap damper LINED 6mm Class O fire rated acoustic lining Please note the duct collar is not required when ordering diffusers with plenums. Sizes SDFSP diffusers are available in ISO duct sizes ranging from 160mm to 0mm diameter, with 3 frame options to suit ceiling grid sizes of 0, 00, 600 & 70 square. Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours are available on request Performance able Frame size H SDFSP Perforated supply diffuser ØD 1 Frame size A ØD1 SDFSP Supply Air 38 Duct mounting collar Hanging brackets Removable faceplate Ø D1 38 Frame size 7 SDFSPE Perforated etract diffuser (for ceiling void return only) Frame size B ØD Perforated supply diffuser with WP plenum Hanging brackets 70 Removable faceplate m Grid Size 3 /h meter Jet hrow Duct Plenum Ps Duct Ps Plenum 18 4 Jet hrow Duct Plenum Ps Duct Ps Plenum Jet hrow Duct 41 Plenum Ps Duct Ps Plenum Jet hrow Duct Plenum Ps Duct Ps Plenum Jet hrow Duct Plenum Ps Duct Ps Plenum Jet hrow Duct Plenum 2 42 Ps Duct Ps Plenum Ehaust Air Grid Size m 3 /h loss Pa Ehaust 3 Air (All selections < ) SDFS/P//00/16/PPM0 Nominal size Frame style & grid Colour finish Duct collar (DM) or Plenum (WP) Plenum spigot damper (if required) Acoustic plenum lining (if required) /DM /WP/FDC1/LINED Nom. Size Grid Size Ø D Ø D1 A B H

21 Diffusers High Capacity Swirl Diffusers SDFCH SDICH SDACH he SDFCH are high capacity fied blade swirl diffusers designed to produce a horizontal, radial air pattern with a turbulent high entrainment jet characteristic and are ideally suited for applications with high heating or cooling differentials. he SDICH is based on the SDFCH but allows the individual adjustment of blades to create a specifically required air pattern. he SDACH is also based on the SDFCH but provides adjustment to the angle of all of the blades in unison in order to create the required air pattern. his can also be controlled remotely with an optional motor. Both the SDICH and the SDACH allow a continual adjustment from providing coanda effect to vertical dumping. hey are particularly useful in areas that eperience a varied thermal load, for eample areas that are effected heavily by the changes in season. All products in the high capacity swirl diffuser range are suitable for ceilings up to 1m. SDFCH Large format, high capacity Performance able fied swirl diffuser SDICH Large format, high capacity SDFCH swirl diffuser with individually adjustable blades SDACH Large format, high capacity Ps Duct swirl diffuser with connected 0 Ps Plenum adjustable blades Duct SDP Side entry plenum bo Plenum FDC1 Cord operated flap damper FDQ1 Quadrant operated flap Ps Duct damper Ps Plenum LINED 6mm Class O fire rated Duct acoustic lining Plenum M Optional motorised actuator for the SDACH only Ps Duct Features Large size range Profiled frame Optional standard side entry plenum Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Advantages High air volume capacity Standard top entry neck, or side entry with plenum bo * Please note the total installed height assumes an overlap of mm on the diffuser neck / plenum connection. SDFCH/0/PPM0/SDP/FDC1/LINED Nominal size Finish Plenum (if required) Plenum spigot damper Plenum acoustic lining H Perforated baffle F Nom Size D E 7 (12 with FDQ option) FDC, FDQ damper options 63 Supply Air 3 ØB ceiling cutout ØC neck For ehaust applications add 3dB to the dba level and multiply pressure loss by 1.1 G i/s ØD1 o/s m 3 /h meter Jet hrow Jet hrow Jet hrow Ps Plenum Duct Plenum Jet hrow Ps Duct Ps Plenum Duct Plenum 27 4 Jet hrow Ps Duct Ps Plenum Duct Plenum Jet hrow Ps Duct Ps Plenum Duct 26 Plenum ØD2 i/s Ø A Ø B Ø C D E F G H J* Ø D1 Ø D J* *

22 Vane Swirl Diffusers SDVS SDVC he vane swirl diffusers are designed for areas where rapid miing of supply air is required in rooms of ceiling height between 2.6m and 4m. SDVSA 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 plenum V op entry plenum ADJ Room adjustable vanes E Lay in, 8, 16 tegular Features High air volume capacity Standard top entry neck, or side entry with plenum bo Adjustable polymer deflectors enabling different discharge directions Optional room adjustable vanes 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 etract diffusers. here is no requirement to identify this on the order Lay in teqular options Finishes Black or white deflectors (to be specified on order) PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Advantages Suitable for high ceilings (relative to other diffusers) Rapid induction of supply air E SDVSAV / SDVSBV B H A A SDVSAS / SDVSBS B H A A 0 E + 2 SDVCAV / SDVCBV B1 H1 Ø D Ø A SDVCAS / SDVCBS B1 H1 Ø A , Ø D Air discharge all left / all right Air discharge left Air discharge right Air discharge left Air discharge right Air discharge left Air discharge right SDVS Number Nom. AA Ø A BH B1 H1 SDVC of vanes Ø D E SDVSA/600/E/48/WH/ADJ/PM0/S / // // / / Frontplate size Lay in Front face pattern Vanes colour Room adjustable vanes Finish Plenum type

23 Diffusers Vane Swirl Diffusers SDVS SDVC SDVSA SDVSA08 SDVCA SDVCA08 SDVSB SDVSB08 41 SDVSB016 SDVSB0016 SDVSB60016 SDVSB /48 8/ SDVSA016 SDVSA0016 SDVSA60016 SDVSA6216 SDVCA016 SDVCA0016 SDVCA60016 SDVCA /48 8/ ø0 38/48 8/623 SDVSA SDVSA60024 SDVSA6224 8/623 SDVSA60048 SDVSA6248 8/623 SDVSA80072 SDVSA / /623 8/623 ø0 / ø00 ø600/ ø62 SDVCA0024 ø00 SDVCA60024 SDVCA6224 ø600 / ø62 SDVCA60048 SDVCA6248 ø600/ø62 SDVCA80072 SDVCA8272 ø800 / ø82 Fiing Sizes Sizes /48 8/623 SDVSB SDVSB600 SDVSB62 8/623 SDVSB80064 SDVSB / /623 (inclusive) 1 central screws (inclusive) 4 screws 78/823 Performance able SDVSB SDVCB m 3 /h Supply Ps 6 Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps 4 SDVCB SDVCB80064 SDVCB8264 SDVCB08 SDVCB016 SDVCB0016 SDVCB60016 SDVCB6216 SDVCB0024 SDVCB600 SDVCB62 ø0 ø0/ ø 00 ø6 00/ ø62 ø00 ø600/ ø62 ø800/ ø82

24 Vane Swirl Diffusers SDVS SDVC 42 Performance able SDVSA SDVCA Supply Ehaust with side entry plenum Ehaust with top entry plenum m 3 /h Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps Ps

25 Diffusers Small Format Circular Diffusers MC he MC diffuser has been designed for both supply and ehaust applications requiring compact circular diffusers; unlike conventional high aspiration diffusers the MC has a small overall to neck size ratio. he diffusers are adjustable to produce horizontal or vertical air patterns. Manufacture he MC diffusers are constructed from steel spinnings retained on aluminium spider braces. MC Small format circular diffuser LD Butterfly type louvre damper ED&LD Equalising deflector & louvre damper Blind Fi Special blind fiing (see below) Features Compact frame design Robust steel construction Adjustable for vertical or horizontal air patterns Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Weights MC/ kg MC/0 2.1 kg MC/0 3.4 kg MC/ 4.8 kg Performance ables (Supply) MC Air (Horizontal) 0 0 m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps Diffuser & Overall Ceiling Duct Size Ø A meter Ø B Opening Ø C MC//PPM0/LD Diffuser Size Finish Etras 0 0 MC Ø B Diffuser O/A size Air (Vertical) m 3 /h Projection (m) Ps m 3 /h Projection (m) Ps m 3 /h Projection (m) Ps m 3 /h Projection (m) Ps Ehaust 0 0 MC Supply Horizontal Diffusion Radius of diffusion. Minimum space covered by one diffuser which results in a mean room air movement of 0.2 m/s Maimum space covered by one diffuser which results in a mean room air movement of 0. m/s Supply Vertical Projection Projection downward throw to a terminal velocity v = 0. m/s Ø C Ceiling cut out Ø A Vertical Projection Air 7 7 DUC O CEILING FACE DUC O CEILING FACE 8 8 m 3 /h Ps m 3 /h Ps m 3 /h Ps m 3 /h Ps 3 74 Special Blind fiing Specify when ordering

26 J Large Format Circular Diffusers WR he WR series is suitable for ceiling or eposed ductwork mounting and includes a rotating central core adjustment feature to provide settings for projection heating and spot cooling or conventional horizontal diffusion. Manufactured from aluminium spinnings, the diffusers are available with a range of dampers and equalising grids for effective control of air distribution. WR Large format circular diffuser LD Butterfly type louvre damper (sizes 618 only) OBSS Opposed blade damper (sizes 2124 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 ehaust Eample Finishes PPM006 (RAL 006 Matt Silver) 4 PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Weights WR6 1.2 kg WR1. kg WR8 1. kg WR kg WR 2.3 kg WR21. kg WR kg WR kg Installation Remove core from bayonet fiing and offer diffuser frame into opening. Screw fi through diffuser stack into duct. Replace core ensuring the bayonet fiing is secure. Cone Settings: Setting B: Flush for general applications producing horizontal diffusion (performance as table) Setting A: Projection setting multiply tabulated Ps 1.7, add 2dB to dba values. Setting C: Eposed duct setting multiply tabulated Ps 0.8, substract 2dB from dba values. Ehaust: Ps (ehaust) = Ps (supply) 1.2 dba (ehaust) = dba (supply) + 3dB Vertical Projection Data: Projection is based on isothermal supply conditions with a terminal velocity of 0. m/s. Correct for heating, cooling and other Vt. For projection use graph below. For required throw corrected for temperature differential select suitable size and neck velocity. Noise generation and loss: Use the table for horizontal diffusion corrected for cone setting. Diffuser size Finish Etras WR/1/PPM0/LD Vn Neck velocity (m/s) D H E A (DUC SIZE) Vertical Projection Cone setting A Size Projection (m) C BA REMOVABLE CORE B G (OPENING SIZE) C 44 Performance ables Horizontal Diffusion: Supply WR DUC F Air m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps m 3 /h Min Ma (m) Ps Heating Dt ( C) 1 2 Projection Factor erminal Velocity Vt (m/s) Correction Factor Projection Factor for Cooling t= C 1.1 Size A B C D E F G H J

27 Diffusers Aircell Polymer Floor Diffusers WFOR WFOV WFOI he Aircell WFO series floor diffuser offers the choice of horizontal or vertical air patterns with its flip over design, as well as a host of other unique & patented features. he WFOV low pressure vertical supply disc offers vertical projection with a 0% increase in air volume capacity, compared with standard WFOR units. he WFOI provides a high induction discharge pattern at between and 4 degrees which provides dynamic miing that results in efficient velocity equalisation within the occupied zone. he WFO diffuser discs are 0mm Ø and it has been designed to resist permanent deformation when subjected to point loads up to 00 kg and all materials used are fire retardant. he WFOV diffuser disc is suitable for point loads up to 0kg. WFOR Pressurised Floor Void ile installation suitable for fitting into standard floor tile thicknesses of up to 0mm, supplied with a locking collar which is screw fied to the underside of the tile. WFOI As above but with high induction disc WFOV As above but with low pressure vertical air pattern disc WFORS Pressurised Void Slab floor installation supplied with a steel adaptor collar which is cast into the floor slab. he diffuser can then be installed into the collar with concealed spring clips. WFORP Ducted installation with plenum supplied with a plenum. WFOVP As above but with low pressure vertical air pattern disc WFOID Step Drilled Installation he diffuser disc only is supplied, suitable for installation into precut holes in floor tiles. Features Unique flipover design (WFOR) Memory locating peg Easy fit locking collar Concealed fiing bracket for concrete / slab flooring Combined damper /dirt tray with incremental damper positioning Heavy duty glass reinforced polycarbonate construction Compact plenum with optional spigots to suit 0 or 12mm ducting Finish WFO diffusers are available in a slate grey finish (RAL 70 Mid Grey) as standard. Other colours can be specified subject to a minimum quantity. Advantages Ability to change between horizontal and vertical settings instantly (WFOR) Commissioning settings are retained once set using the memory locating peg Reduced installation time with easy fit locking collar WFOR AIR VELOCIY (m/s) Ø 1 hole Ø 10 WFORD Ø 22 O/A Ø 211 cutout Ø 0 Ø 2 O/A 4 WFOR WFOV WFOI WFORS 4. 1 O/S Plenum Dim HORIZONAL DIFFUSION DAA SHOWN IS VALID FOR EMPERAURE CONDIIONS RANGING FROM ISOHERMAL O 6 C COOLING 0.m 0.7m 22 m 1.2m A min AIR FLOW RAE () 1.m 23 Min. ile 0 Ma. ile WFORP 1.7m Ø 22 O/A Ø 211 cutout Ø 0 WFOVP O/A Plenum Dim 4 r = s (3 C) r = s (6 C) Ø 2 O/A Ø 22 Ø 21 slab hole 11 ctr of spigot 23 Min to 0 Ma ile hickness Ø 2 O/S Collar Dim A Ø 147 Ø 0 he dotted lines represent the approimate distances from the diffuser where the jet air temperature (s) is the same as the room air temperature (r).

28 Aircell Polymer Floor Diffusers WFOR Standard Performance AIR VELOCIY (m/s) VERICAL DIFFUSION A 3 C COOLING 0.m 0.7m m 1.2m 1.m 1.7m VERICAL DIFFUSION A 6 C COOLING AIR FLOW RAE (l/ s) AIR FLOW RAE (l/ s) AIR VELOCIY (m/s) WFOV Low Disc Performance AIR VELOCIY (m/s) Performance Graph VERICAL DIFFUSION A 3 C COOLING 0.m 0.7m m WFOI High Induction Disc Performance AIR VELOCIY (m/s) Performance Graph 1.2m 1.m 1.7m m 0.7m m 1.2m 1.7m VERICAL DIFFUSION A 6 C COOLING AIR FLOW RAE (l/ s) AIR FLOW RAE (l/ s) VERICAL DIFFUSION A 3 C COOLING 0.3m 0.6m 0.m 1.2m AIR VELOCIY (m/s) m 0.7m m 1.2m 1.7m VERICAL DIFFUSION A 6 C COOLING AIR FLOW RAE (l/ s) AIR FLOW RAE (l/ s) AIR VELOCIY (m/s) m 0.6m 0.m 1.2m 46 Loss Data Both Settings Air Flow Rate () Static Loss (Pa) WFOR WFORS WFORP WFORD All pressure loss data is based on a fully open damper Acoustic Data Horizontal Setting Air Flow Rate () dba (Ref. 8dB Room Absorption) WFOR WFORS WFORP WFORD < < < _ 3 < 23 3 < 2 2 All acoustic data is based on a fully open damper and horizontal diffusion. Reduce tabulated figures by 3dBA for vertical diffusion. Loss Data Air Flow Rate () Static Loss (Pa) WFOV WFOVP All pressure loss data is based on a fully open damper Acoustic data Air Flow Rate () dba (Ref. 8dB Room Absorption) WFOV < WFOVP < 23 3 All acoustic data is based on a fully open damper. Loss Data Air Flow Rate () 2 3 Static Loss (Pa) WFOI WFOIP All pressure loss data is based on a fully open damper Acoustic data Air Flow Rate () 2 3 dba (Ref. 8dB Room Absorption) WFOI WFOIP All acoustic data is based on a fully open damper.

29 Diffusers Drum Jet Diffusers WDJ he WDJ Drum Jet diffuser is a high capacity unit specifically designed for warehouses, sports halls or factory units etc where a long throw is required. he WDJ is fully adjustable to provide a full jet spread and directional control. he unit is constructed from aluminium etrusions and comes complete with brush strips to provide a low friction, airtight seal. Standard installation is screw fiing through the face flange. WDJ Drum Jet Diffuser OBSS Opposed blade damper Features Fully adjustable drum Fully adjustable air pattern Suitable for sidewall or eposed duct applications Finishes RAL 0 White Satin Anodised Aluminium Advantages Long throws Low resistant friction on drum Ease of adjustment hrow Correction Factor Vane Angle 0 60 Factor Performance able WDJ Air m 3 /h Jet hrow Pa 7 23 Jet hrow Pa Jet hrow 1 26 Pa Jet hrow Pa Jet hrow Pa Jet hrow Pa Jet hrow Pa Jet hrow Pa Dimensions / Weight able 7 Blade Pitch A Adjustable Vanes No A B W H C D E Weight kg kg kg kg kg kg kg kg B 14 6 D Brush Strip Seal W Duct Width E H Duct Height Number Damper WDJ/1806/OBSS C WDJ WDJ + OBSS Adaptor frame

30 HiFlo Jet Diffusers RWH RWHP he RWH diffusers have been designed to handle high air flow rates and provide relatively long throws which make them particularly suitable for conditioning of large spaces such as halls, auditoria, terminal buildings, warehouses and factories. he diffusers are versatile in application by virtue of the novel reversible and rotatable core design which allows the air jet to be adjusted for both pattern and deflection. Units may be mounted individually or in banks, in bulkhead arrangements or directly into stub ducts. he diffusers are constructed from aluminium spinnings supported on a studding and spacer assembly. he core may be rotated through 180 to epose either a straight or diffused core assembly. In addition, the diffuser spigot may be rotated within the mounting plate (if supplied) to enable a full 0 adjustment, by releasing the tension bolts. RWH Complete diffuser assembly including diffuser core, spigot and mounting plate (wall or ceiling mounting). RWHP Diffuser core and spigot only (suitable for mounting onto bulkheads or stub ducts thus eliminating 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 0 for eyeball jet direction Jet may be deflected off ais by up to 1 Available in four sizes Multiple outlet arrangements Finishes PPM006 (RAL 006 Matt Silver) PPM0 (RAL 0 % Gloss White) PPG0 (RAL 0 Gloss White) Other colours available on request Performance able Weights Size RWH RWHP kg 1.2 kg 2. kg 1.8 kg kg 3.1 kg kg 4.1 kg RWHP/380/PPM0 Duct & Diffuser Size Finish RWH RWHP Jet Diffuser Jet Diffuser Jet Diffuser Jet Diffuser RWHP Diffuser Setting G D 1 RWH assembly Diffuser setting Screw fiing through plate to ceiling or wall F RWHP Jet Setting E RWH assembly Jet setting SWL Spectrum Correction Data By Octaves Frequency (Hz) K 2K 4K Diffuser Diffuser Jet/ Jet/ erminal Velocity Correction Factors Vt (m/s) Factor Ø A 48 RWH Diffuser Setting 1. 1 can be increased with longer screw Multiple Unit Correction Factors No. of units dba addition hrow factor Core Setting Correction Factors Jet Diffuser dba addition +11d B +4dB Loss Factor Clamp fiing to panel Ø B Duct Ø C Cut out Ceiling or wall panel RWHP assembly Nom. size ØA ØB ØC D E F G Air RWH Jet Setting Ø B Duct Screw or rivet to ducting RWHP assembly Ducting (By others) his data is based on isothermal supply air conditions. o estimate maimum Vertical projection under warming conditions multiply jet throw data above by the relevant factor below. Heating Differential Size C C C RWH RWH RWH RWH o estimate vertical projection under cooling conditions multiply throw (to relevant terminal velocity) by factors as follows: C cooling 1.1 C cooling 1. m 3 /h hrow(m) Ps hrow(m) Ps hrow(m) Ps hrow(m) Ps hrow(m) Ps hrow(m) Ps hrow(m) Ps hrow(m) Ps

31 Diffusers Supply and Ehaust Valves VA VB VC A range of high quality valves for supply and ehaust applications for commercial and industrial projects. Series V valves are best applied to air distribution systems handling relatively low air flow rates within small circular ductwork. he valves provide high initial resistance with wide throttling capability which is necessary to offset the Subframe relatively high system resistances. All valves are constructed from steel spinnings protected by a polyester powder gloss white finish. Flanges are fitted with sealing gaskets and all units are supplied as Performanceables for c = Ma standard with plated steel mounting subframes. VA m 3 /h 72 8 VA Supply valve with spindle locknut VB Ehaust valves with spindle locknut hrow (m) VC Ehaust valve with tamper proof screw locking of 0 Ps (Pa) inner core Installation (dba) 22 All units are supplied with a steel mounting subframe hrow (m) 2.0 which should be fied to the prepared opening. 12 Ps (Pa) 11 Cut aperture to suit subframe size shown in table below (dba) Screw subframe into aperture hrow (m) 0.8 Offer valve body into subframe and rotate into Ps (Pa) bayonet fiing (dba) Finishes hrow (m) 0.7 Standard polyester powder gloss white 160 Ps (Pa) Other colours are available on request (dba) H + C Ø B H 0 Ø A hrow (m) Ps (Pa) (dba) 4 Air Ø D Ø S Supply Valve V A H Ø B + C Ø D H Ehaust Valve V C + C Ø B VB 0 12 /160 0 m 3 /h Ps (Pa) (dba) Ps (Pa) (dba) Ps (Pa) (dba) Ps (Pa) (dba) Air Ø D Ø S Ehaust Valve V B C Core adjustment Ø B Subframe Ø 0 Ø 12 Ø 160 Ø 0 B A H VC / VCF 0 12 /160 0 m 3 /h Ps (Pa) (dba) Ps (Pa) (dba) Ps (Pa) (dba) Ps (Pa) (dba) Air Size VA/12 VA VB VC Ø 0 Ø 12 Ø 160 Ø 0 Ø 0 Ø 12 Ø 160 Ø 0 Ø 0 Ø 12 Ø 160 Ø 0 Ø D S B H