air distribution products catalogue

© Systemair 2011. Systemair reserves the right to make technical changes. For updated documentation, please refer to www.systemair.com.

Disclose the secret of fresh air!Systemair has been taking care of Indoor Air Quality (IAQ) as an essential resource since 1974. Today Systemair is one of the leading ventilation companies worldwide. A success story, which started in Skinnskatteberg, Sweden with the invention of the inline duct fan. This invention revolutionised the ventilation world. Since then the company has continuously advanced and now offers a comprehensive range of products for all ventilation requirements. The expert at Systemair have the required knowledge and understanding in finding solutions when considering the ventilation of shopping centres,

domestic ventilation of a family home to the complex ventilation of tunnels and metro stations. More than 2500 employees and in excess of 60 subsidiaries in 40 countries globally we are available to our customers.

With this catalogue which features air distribution products and accessories we give you as our customer a general overview of what Systemair can offer within this range. For further information about all the other Systemair products you can contact your local Systemair company or you can just visit our online catalogue on www.systemair.com.

Quality

Systemair has been certified according to ISO 9001, ISO 14001 and ATEX. Our R&D centre remains one of the most modern facilities in Europe. We test in compliance with the international standards EN, ISO and AMCA.

ContentsSystemair ........................................................................................ 2

Group product overview ............................................................4-5

A good indoor climat is vital ......................................................... 6

Marketing tools .............................................................................. 7

ADP basic product range ......................................................... 8-11

Theory ...................................................................................84-100

Index ...........................................................................................101

Technical data Air valves ....................................................................... 12-26

Wall grilles & diffusers ................................................. 27-36

Linear wall & ceiling diffusers ............................................ 37

Floor & step diffusers ................................................... 38-39

Transfer & door grilles .................................................. 40-41

Duct mounted grilles & diffusers ................................. 42-44

Square ceiling diffusers ................................................ 45-53

Round ceiling diffusers ................................................. 54-65

Jet diffusers ................................................................... 66-67

Displacement diffusers ................................................. 68-69

Air volume controllers .................................................. 70-78

Louvers .......................................................................... 79-80

Plenum boxes ................................................................ 81-83

Production in Skinnskatteberg is virtually fully automated with modern machinery featuring advanced computer support. Also located here is the company’s most advanced test installation for measuring technical data.

Systemair

The straight wayThe straight way was our first production idea and led to the circular duct fan. Today “the straight path” represents our ambition to simplify the life of our customers. Stocked products are delivered in Europe within 24 hours from local warehouses and within 72 hours from distribution centres. High product quality, correct technical data and fast deliveries are always in focus.

SystemairSystemair was established in Sweden in 1974 and is today the parent company in an international group with 50 subsidiaries and approximately 2500 employees. The Group’s head office and largest production plant is located in Skinnskatteberg with some 400 employees and a floor area of 50,000 m2.

ProductionWe are proud of our production units. The aim has been to have both effective production of bulk products and, at the same time, an efficient and flexible approach to producing small volumes. This has steered our choice of machinery and how we plan our production, with focus on the working environment. Ourpremises are light and pleasant and we invest in tools that facilitate work and provide our employees with a safe and efficient workplace.

Technical dataOur development centre in Skinnskatteberg is one of the most modern in Europe for air flow measurements, acoustic measurements, efficiency measurements, low speed measurements on air terminal devices, etc. All measurements are performed in compliance with applicable standards as set out in AMCA and ISO.

Quality and environmentSystemair is certified according to ISO 9001 and ISO 14001. Our quality system allows us to continuously improve our products and our customer service. Certification means that we have undertaken to minimise our environmental impact. We always take the environment into consideration when we choose sub-suppliers, materials, production methods, etc. An important factor is that we continuously work to reduce our energy consumption and reduce waste. Through increased recovery and heightened awareness we have been able to reduce our waste by 90%. Quality and environment management systems are under continuous development. These are audited twice a year by the certification body BVQI (Bureau Veritas Quality International).

Detailed product information can be found on our website, www.systemair.com

Dal, Eidsvoll–NorwayIn Eidsvoll, Norway we manufacture air handling units for the Norwegian market. The Norwegian warehouse for fans is also located here.

Bouctouche - CanadaIn Bouctouche, Canada we primarily produce duct fans and heat exchangers used in residential ventilation for the North American market.

Kansas City – USAIn Kansas City we produce roof fans, roof extractor fans, wall fans and recirculating air units.

Skinnskatteberg - Sweden Main plant The main plant in Skinnskatteberg houses one of the company’s two central warehouses and the largest production installation as well as the group’s head office. Fans and accessories are produced here as stock items.

KlockargårdenSystemair’s small air handling units are made at Klockargården in Skinnskatteberg. Frico’s central warehouse of approximately8,000 m2 is also located here.

Hässleholm - SwedenVEABVEAB in Hässleholm manufactures first and foremost heating coils and hot air fans.

Ukmerge – LithuaniaProduction of air handling units for homes.

Bratislava – SlovakiaThe factory in Bratislava manufactures air distribution products and fire dampers.

Maribor – SloveniaThe factory in Maribor, Slovenia specialises in high temperature fans for flue gas ventilation.

Kuala Lumpur – MalaysiaProduction and marketing of products for tunnel and garage ventilation

IndiaA broad assortment of air distribution products are manufactured, along with a wide range of the Systemair products are offered in parallel, Noida - INDIA

Windischbuch - GermanyIn Windischbuch, Germany a broad assortment of fans are manufactured, of which the majority are stock items. One of Systemair’s central warehouses is located here.

Madrid – SpainThe factory in Madrid, Spain makes air handling units for the southern European market.

Hasselager - DenmarkThe factory in Hasselager, Denmark man-ufactures large air handling units. All pro-duction here is order based

4

Other products from SystemairSystemair has an extensive range of ventilation products: fans including smoke extract, tunnel and car park fans ,explosion proof fans, air handling units from large central units to small residential units with energy recovery, air distribution products and fire dampers.

These products are installed in a variety of locations, including homes, offices, healthcare premises, shops, industrial buildings, tunnels, parking garages, training facilities, sports centres.

RESIDENTIAL VENTILATIONComplete energy-efficient air handling units with heat recovery and built-in control systems. Designed to be mounted over the cooker, on walls or horizontally in attics.

Residential unitsFor homes with living areas of 60-320 m2.

Cooker hoodsGood at capturing odours even at low airflows.

Air handling unitsSystemair produces a wide range of air handling units.

Compact air handling unitsCompact supply air handling unit with heating battery and filter for use in petrol stations, schools, stores, offices and smaller premises. The units are compact in dimen-sions and are easy to install.Air flow: 20-1400 l/s

False ceiling unitsCompact and easy to maintain air handling unit with heat recovery and control system. Mounted in a false ceiling or in the attic.Air flow: 20-1500 l/s

Horizontal unitsA broad range of horizontal air handling units with or without heat recovery. Use-able everywhere from minor premises to schools, stores and larger offices.Air flow: 20-1500 l/s

Vertical unitsA broad range of vertical air handling units with or without heat recovery. Useable eve-rywhere from minor premises to schools, stores and larger offices.Air flow: 20-1500 l/s

5

Catalogues for other productsWe have seperate catalogues for Air Handling Units and Air Distribution Prod-ucts as well as leaflets and brochures for all of our products. Contact us for printed versions or download on www.systemair.com.

AIR DISTRIBUTION PRODUCTSFansSystemair has a wide range of fans for use in various applications from small office premises to larger industrial applications. Common to all items in the range is that components have been developed to satisfy stringent demands for low energy consumption.

The fans have all undergone extensive test-ing, both in the laboratory and out in the field, in order to comply with current and future demands for low energy consump-tion. All products are also manufactured to comply with environmental requirements.

Roof fansEffective exhaust air system for horizontal or vertical air discharge

Explosion proof fans & smoke extract fansfans for explosion hazardous areas & smoke and heat extract

Axial fansEffective supply and exhaust system for industrial buildings applications

Circular & rectangular fansWide range of use for all kinds of installa-tions

FIRE AND SMOKE DAMPERSSystemair produces fans, dampers and control equipment for dual use, i.e. for nor-mal operation and certified for use during normal operation and in the event of a fire.

Fire & smoke dampersDampers that reduce the spread of smoke and fire.

6

A good indoor climate is vitalWe often take natural resources such as fresh air for granted. We must however remain frugal with this essential resource and mindful of maintaining a responsi-ble balance between the designing of good ventilation systems and considering energy consumption and well thought out material usage and production meth-ods. Systemair has recognized this need and has developed the "Green Ventila-tion" registered trade mark for ventilation labelling these products.

One of Europe's most modern development centres

A room that is so quiet that the only thing you’ll hear is your heartbeat.

The development centre in Skinnskatte-berg, recently accredited by AMCA, signifies an investment of EUR 700,000 and is fitted with measurement and testing equipment, making it one of the most modern facilities of its kind in Europe.

The quiet room is one of the test stations or a “reverberation chamber”, producing a background sound of less than 10 dBA. When measuring supply air terminals, a green laser is used to show how the air is expelled from wall-mounted or ceiling-mounted devices. There is also a climate chamber that cools the air to -20°C, which means we can use it all year round to develop our recovery units. In addition to the test centre in Skinnskatteberg, there are also test facilities in Germany and Denmark where we can measure air volumes of more than 400 000 m3/h.

Heat recoveryIn areas with a relatively low average annual temperature, ventilation systems employ effective heat recovery that returns energy from extract air to the supply air. A good rotating heat exchanger can recover up to 90% of the energy present.

Energy-efficient fansToday, there is a new generation of fan mo-tors that contribute to a dramatic reduction in energy consumption, as much as 50% in some cases. The new EC motors are better suited to speed control functions, which is where considerable energy savings can be made. Further benefits are of quieter operation as well as extended product life.

to ensure that our products maintain a high standard and are approved by various bodies. For units, this may mean Eurovent certification or other local certification for the country in question. To achieve this, you need resources and expertise. Within the Group, you will find, among other things, one of Europe’s most modern development centres, which is AMCA-certified.

PressureThe design of the duct system and the unit has an impact on required system pressure. There are often tens, sometimes hundreds, of Pascals to be saved here.

Cool recoveryIn warmer parts of the world, energy sav-ings may be possible by drawing cool night-time supply air into premises, thus cooling the building structure.

Quality-certified productsHow can you choose the right solution and product when there are so many alterna-tives? Nowadays, most major suppliers are ISO-certified and have CE-marked products, but is that enough? At Systemair we are going one step further and working hard

7

Product catalogue and specification dataMore detailed technical information, suf-ficient to carry out complete planning, is available in separate catalogues and speci-fication data. These describe all incorpo-rated functions, available accessories, and additional technical data.

Selection toolsWe have developed this overview to make it easier for you to get an idea of which product best suits your specific needs. More detailed analysis or planning usually requires additional information, which is where the following tools come in.

Online catalogue and computer softwareFor those who prefer to work online, it is possible to select and dimension most prod-ucts (except DV and NB) using Systemair’s online catalogue.

In addition to complete product informa-tion, there is also a selection function that suggests alternative products to suit actual needs. For certain products, such as Topvex, medium pressure axial fans, air handling units DV and NB, there is computer software that you can download and install locally.

Personal supportSystemair aims to have local expertise close to the customer. You can find up-to-date information and contact details for each country on our website, www.systemair.com.

8 | Content

NOVA-FNon Vision Return Air Grille

with G3 Filter

Wal

l Gril

les

and

Diff

user

s

NOVA-ADouble Deflection Grille

Used for Supply and Return

NOVA-LLinear Bar Grille Used for

Supply and Return

NOVA-RNon Vision Return Air Grille

Sinus-BRNozzle Diffuser for Supply Return Air

Sinus-BSNozzle Diffuser for Supply Return Air

Ai

r Val

ves

Balance-SSupply Plastic Air Valve

Elegant-VESupply Air Valve

BHCReturn Air Regulatoring Motorized

Valve with Presence & Humidity Sensor

OVETransfer Air Valve

EFFReturn Metal Air Valve

Elegant-VSSupply Air Valve

ALReturn Self Regulating Air Valve

OVRTransfer Air Valve

TFFSupply Metal Air Valve

Elegant-VISupply Air Valve

AEReturn Self Regulating Air Valve

OVXTransfer Air Valve

Balance-EReturn Plastic Air Valve

Elegant-VTSupply Air Valve

VTKSelf Adjusting Inlet Air Valve

9|ContentLi

near

Wal

l &

Ceili

ng D

iffus

ers

Hella-ALinear Slot Diffuser

Tran

sfer

& D

oor G

rille

s

NOVA-EEgg Crate Return Air Grille

NOVA-DNon Vision Transfer Air Door Grille

Floo

r & S

tep

Diff

user

s

Elegant-ATSupply Air Valve

SFDFloor Diffuser

Duct

Mou

nted

Gr

illes

& D

iffus

ers

Sinus-DCCircular Duct Mounted

Nozzle Diffuser for Supply Air

NOVA-CSingle or Double Deflection Duct Grilles for Supply and Return Air

Sinus-DRRectangular Duct or Wall Mounted

Nozzle Diffuser for Supply Air

Squa

re C

eilin

g Di

ffus

ers

KvadraLouvre Faced Ceiling Diffuser

for Supply and Return Air

VVKNSwirl Ceiling Diffuser Used for Supply

and Return air With Fixed Blades

VVKR Swirl Ceiling Diffuser Used for Supplyand Return Air with Adjustable Blades

TSFPerforated Face Return Air Diffusers

TSOPerforated Face Supply Air Diffuser

CRS-TSquare Ceiling Swirl Diffuser with Fixed Air Guiding Blades

10 | Content

JSRCircular Multi-Cone Jet Diffuser with Narrow Concentric or Wide Cones for

Long or Short Air Pattern

AJDLong Throw Adjustable

Nozzles

Jet D

iffus

ers

LPSDisplacement Diffuser Suspended or Mounted Against the Ceiling for Low

Velocity Ceiling Air Distribution

Disp

lace

men

t D

iffus

ers

TSDCircular Swirl Diffuser with Adjustable

Blades for Horizontal or Vertical Air Pattern

KonikaCircular Fixed Cones

Ceiling Diffuser

Konika-ACircular Adjustable Cone

Ceiling Diffuser

CRSCircular Metal Swirl Diffuser

with Fixed Blades

TSKCircular Ceiling Diffuser with

Adjustable Perforated Front Plate

TSRCircular Ceiling Diffuser with

Adjustable Front Plate for Apparent Installations

TSPCircular Ceiling Diffuser with

Adjustable Front Plate for Apparent installations

TSTCircular Ceiling Diffuser with

Adjustable Front Plate

Roun

d Ce

iling

Diff

user

s

Sinus-CCircular Nozzle Ceiling Diffuser

Complete with Side Entry PlenumBox for Visible Installation

Sinus-C/TCircular Nozzle Ceiling Diffuser

Complete with Top Entry PlenumBox for Visible Installation

IKDCircular Ceiling Diffuser with Dual

Adjustable Cones for High Installations

CRSPCircular Swirl Diffuser

with Fixed Blades

Squa

re C

eilin

gDi

ffus

ers

Sinus-FSquare Multi Nozzle Ceiling Diffuser

for T-Bar ceiling

Sinus-GSquare Multi Nozzle Ceiling Diffuser

for Plaster or False Ceiling

Sinus-ASquare Multi Nozzle Ceiling Diffuser

for Plaster or False Ceiling

11|Content

SPM Iris Damper for Measuring and Adjusting Air Flow with

More Choking Ability

VKLouver Shutters

for Vertical Mounting on a Wall

RPK-RConstant Air Volume Controller

with Adjustable Air Flow

SPIIris Damper for Measuring and

Adjusting the Air Flow

SPM-FActuator Driven Iris Dampers

with More Choking Ability

SPI-FActuator Driven Iris Dampers

RDAConstant Volume Regulator

for Duct or Air Inlets

VKKLouver Shutters

with Circular Inlet and Outlet

RSKBack Draft Damper for Circular Ducts

Air V

olum

e Co

ntro

llers

IGCCircular External Louver

IGKSquare External Louver

Louv

ers

PRGRear, Side or Top Entry Insulated

Plenum Boxes Designed for Rectangular Grilles

PERSide Entry Plenum Boxes

Designed for Circular Inlet Diffusers

VVK Side Entry Plenum Boxes

Designed for Square Ceiling Diffusers

Hella-A-PBSide Entry Plenum Box

Designed for Linear Slot Diffusers

Plen

um B

oxes

12 |

FunctionThe Balance-E is a round exhaust valve with an aerodynamically shaped valve cone. The Balance-E performs extremely well with re-gard to sound level, pressure drop and air flow characteristics. The Balance-E is installed in a frame or directly into the duct.

DesignThe Balance-E is manufactured from recycla-ble polypropylene and tolerates temperatures up to 100°C. This material also withstands most chemicals in small concentrations, Poly-ether gasket. The Balance-E is supplied in a white finish which matches RAL 9010.

AdjustmentThe cone is screwed a number of turns clockwise or anticlockwise so as to achieve the air gap in mm which corresponds to the pressure drop and required air flow shown in the diagram. The pressure drop is checked by pushing a suitable test probe into the front of the unit behind the valve cone.

Ordering codeBalance - E 100 (E=Exhaust Air, Diameter)

Selection TableTable below shows the general product per-formance for more details please see selection software or contact your local systemair office.

ΔPi, find the mean pressure

Balance-EReturn plastic air valve

ØA ØB ØC DBalance-E-100 100 70 142 61Balance-E-125 125 87 160 61Balance-E-160 160 118 195 57Balance-E-200 200 167 240 64

Balance-E a, (mm) -7.5 -5 0 5 10 15100 k-factor 0.83 1.09 1.46 2.00 2.28 2.69125 k-factor 0.85 1.11 1.63 2.15 2.41 3.45

a, (mm) -2.5 0 5 10 15 20160 k-factor 2.02 2.63 3.93 4.53 6.08 7.56

a, (mm) -5 0 5 10 15 20200 k-factor 4.43 5.74 7.30 8.44 10.18 11.50

Size of ØA ØD hole dimensionRFP 100 120 97 Ø103RFP 125 146 122 Ø128RFP 160 180 157 Ø163RFP 200 220 197 Ø203

Size of ØA ØD hole dimensionRFU 100 120 97 Ø103RFU 125 146 122 Ø128RFU 160 180 157 Ø163RFU 200 220 197 Ø203

Balance-E

SizeArt No

Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)Balance-E RFP RFU

100 6961 6125 6130 43 95 161

125 6962 6126 6131 88 159 241

160 6963 6127 6134 31 82 133

200 6964 6128 6135 33 66 109

m3/h 40 60 80 100 130 180 230

l/s 11 17 22 28 36 50 64

Acoustic performance in dB(A): 20-25 30 35-40

Dimensions

Air flow and pressure drop

a = air gap in mm

RFP

RFU

AccessoriesRFP, RFU Mounting frame.

Air valves

13|



Balance-SSupply plastic air valve

FunctionThe Balance-S is a round supply-air valve with an aerodynamically shaped valve cone. The Balance-S performs extremely well with regard to sound level, pressure drop, air flow and self-damping. The Balance-S is installed in a frame or directly into the duct.

DesignThe Balance-S is manufactured from recycla-ble polypropylene and tolerates temperatures up to 100°C. This material also withstands most chemicals in small concentrations, Poly-ether gasket. The Balance-S is supplied in a white finish which matches RAL 9010.

AdjustmentThe valve cone is screwed a number of turns clockwise or anti-clockwise so as to achieve the air gap in mm which corresponds to the pressure drop and required air flow shown in the diagram. The pressure drop is checked by removing the front plug and pushing in a suit-able test probe.

Ordering codeBalance - S 100 (S = supply air, diameter)


ΔPi, find the mean pressure

ØA ØB ØC DBalance-S-100 100 81 156 72Balance-S-125 125 104 182 78Balance-S-160 160 120 206 86

Balance-S a, (mm) 2.5 4 5 7.5 10 20100 k-factor 1.08 1.67 2.16 3.10 4.05 5.17120 k-factor 1.15 1.96 2.92 3.73 4.79 7.59160 k-factor 1.86 2.75 3.46 4.81 6.62 10.32

Balance-S

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Balance-S RFP RFU

100 6965 6125 6130 1 2 3 62 120 217

125 6966 6126 6131 1 2 2 45 164 224

160 6967 6127 6134 1 2 2 70 102 223

m3/h 55 75 100 120 195 20-25 30 35-40

l/s 15 21 28 33 54 dB (A)

Dimensions

Air flow and pressure drop

a = air gap in mm

RFP

RFU


Air valves

14 |

EFFReturn metal air valve

ØA ØB CEFF 63 63 90 15EFF 80 80 106 15EFF 100 100 135 15EFF 125 125 160 15EFF 150 149 191 15EFF 160 160 195 15EFF 200 200 238 18

FunctionThe EFF is an exhaust device for installation on ceiling or wall. It can also be used for sup-ply air. The device has a lockable central cone which is rotated to adjust the pressure and consequently the air volume.

DesignThe EFF is manufactured from sheet metal with a white powder-coated finish (RAL 9010-80) and is available in the following diameters: Ø63, Ø80, Ø100, Ø125, Ø150, Ø160 and Ø200.

MountingAll sizes can be installed directly onto the duct

AdjustmentThe pressure is adjusted by rotating the valve cone.

Ordering codeEFF-100 Dimensions

Selection TableTable below shows the general product per-formance for more details please see selec-tion software or contact your local systemair office.



EFF

SizeArt No

Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)EFF PER RFP RFU

63 6144 37 236 272

80 6145 6129 20 84 149

100 6146 6125 6130 10 62 136

125 6147 6522 6126 6131 33 102 156

150 7490 B505 B509 6132 22 78 124

160 6148 6523 6127 6134 23 80 125

200 6149 6524 6128 6135 44 84 124

m3/h 40 65 90 100 150 190 250 310

l/s 11 18 25 28 42 53 69 86

Acoustic performance in dB(A): 20-25 30 35-40 Not Available

Dimensions

RFP

RFU


Air valves

15|

Not Available

Dimensions

RFP

RFU

TFFSupply metal air valve

AccessoriesTPP Ceiling plate (600x600), RFP, RFU Mount-ing frame and PER Plenum box with remov-able damper and test points.

FunctionThe TFF is a circular supply valve for ceiling installation. The TFF consists of an inlet cone and diffuser unit containing sound absor -bent material. The technical specifications of the diffuser unit give it a wide range of applica-tions. By rotating diffuser unit, the throw and pressure drop can be adjusted steplessly. Both concentric and eccentric distribution patterns can be selected by using the shielding device provided.

DesignThe TFF is manufactured from sheet steel with a white powder-coated finish (RAL 9010-80) and is available in the following diameters: Ø80, Ø100, Ø125, Ø150, Ø160 and Ø200.

How to use for exhaust airThis device can be used for exhaust air asexplained.

MountingThe TFF is easily fitted, either into the mount-ing frame or directly onto the duct using its friction springs. If the TFF is fitted to a PER plenum box, there must be a straight length, 4 times the duct’s diameter, in front of thePER plenum box.

Ordering codeTFF-125 Size


ØL holeTFF A B C D E F G H □J ØK DI D2 dim080 - - - - - - - 26-56 106 80 - - 87100 - - - - - - - 26-56 135 100 - - 107125+PER 100-125 320 250 150 47 185 115 190 26-56 160 125 99 127 132160+PER 125-160 360 250 160 47 210 120 200 26-56 191 160 124 162 167200+PER 160-200 450 300 195 47 280 138 235 29-59 238 200 159 202 207



TFF

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)TFF PER RFP RFU

80 6089 6129 2 4 5 6 45 65

100 6090 6125 6130 2 2 3 14 33 57

125 6091 6522 6126 6131 4 5 6 19 43 80

150 7509 B505 B509 6132 3 3 4 14 34 69

160 6092 6523 6127 6134 3 4 5 13 34 70

200 6093 6524 6128 6135 3 4 6 5 29 78

m3/h 30 60 75 85 115 165 265 20-25 30 35-40

l/s 8 17 21 24 32 46 74 dB (A)

Air valves

16 |

Dimensions

Elegant-VESupply air valve

FunctionThe Elegant has been especially developed for providing a draught-free air supply from the rear walls of offices, hotel rooms etc. The guide jet prevents the air stream from falling into the occupied zone before it has reached an acceptable temperature. Max. temperature difference ΔT 10K is permissible. The Elegant is also suitable for VAV systems, as the distri-bution pattern is maintained across the entire flow area.

DesignThe Elegant is manufactured from steel and consists of a convex front plate with perfora-tions and guide jet opening. The front plate is finished in the standard white powder-coating (RAL 9010-80).

VersionsThe Elegant is available in sizes Ø100, Ø125 and Ø160, and in five different versions: VE is the basic version with perforated front plate.

MountingThe diffuser is installed directly onto the spiralduct. Dismantling of the supply air unit: Turn the unit and pull straight out.


ØA ØB C D

Elegant VE-100 98 165 111 87

Elegant VE-125 123 165 115 89

Elegant VE-160 158 198 124 86

Sound attenuation, ΔL (dB) Mid-frequency band, Hz

125 250 500 1K 2K 4K 8KVE 100 17 12 7 1 0 0 2VE 125 17 12 7 1 0 0 2VE 160 16 14 6 1 0 0 3

Sound power level, LW

LW(dB) = LpA + Kok (LpA = diagram Kok = table)correction factor Kok

Mid-frequency band, Hz 63 125 250 500 1K 2K 4K 8KVE 100 13 -1 -2 0 -1 -6 -9 -14VE 125 13 -1 -2 0 -1 -6 -9 -14VE 160 14 3 1 3 -1 -8 -14 -15

Elegant-VE

Size Art No Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)

100 6298 7 12 14 38 117 187

125 6827 6 9 12 36 76 143

160 6828 2 3 5 14 49 116

m3/h 50 75 100 140 215 20-25 30 35-40

l/s 14 21 28 39 60 dB (A)

Air valves

17|


125 250 500 1K 2K 4K 8KVS 125 19 13 5 1 0 0 2VS 160 15 11 6 0 1 0 1



Mid-frequency band, Hz 63 125 250 500 1K 2K 4K 8KVS 125 4 -2 -3 1 0 -4 -11 -20VS 160 15 3 1 2 -2 -7 -13 -20

Dimensions

With the pressure distribution plate in the back of the diffuser, the airflow can be adjusted by using different num-ber of plastic plugs, see diagram.

ØA ØB C D

Elegant VS-125 123 165 240 214

Elegant VS-160 158 198 274 236

FunctionThe Elegant has been especially developed for providing a draught-free air supply from the rear walls of offices, hotel rooms etc. The VI or VS version with guide jet is recommended for cooled air. The guide jet prevents the air stream from falling into the occupied zone before it has reached an acceptable tempera-ture. Max. temperature difference ΔT 10K is permissible. The Elegant is also suitable for VAV systems, as the distribution pattern is maintained across the entire flow area.


VersionsThe Elegant is available in sizes Ø125 and Ø160, and in five different versions: VS has a perforated front plate, guide jet, test points, damper.

MountingThe diffuser is installed directly onto the spiral duct. Dismantling of the supply air unit: Turn the unit and pull straight out.


Elegant-VSSupply air valve

Elegant-VS


125 6831 6 9 12 23 70 115

160 6832 10 14 17 32 66 101

m3/h 60 90 120 160 200 20-25 30 35-40

l/s 17 25 33 44 56 dB (A)

Air valves

18 |


125 250 500 1K 2K 4K 8KVI 125 19 13 5 1 0 0 2VI 160 15 11 6 0 1 0 1



Mid-frequency band, Hz 63 125 250 500 1K 2K 4K 8KVI 125 11 -6 -5 -1 0 -4 -7 -15VI 160 8 -1 -1 1 0 -5 -12 -20

FunctionThe Elegant has been especially developed for providing a draught-free air supply from the rear walls of offices, hotel rooms etc. The VI or VS version with guide jet is recommended for cooled air. The guide jet prevents the air stream from falling into the occupied zone before it has reached an acceptable tempera-ture. Max. temperature difference ΔT 10K is permissible. The Elegant is also suitable for VAV systems, as the distribution pattern is maintained across the entire flow area.


VersionsThe Elegant is available in sizes Ø125 and Ø160, and in five different versions: VI has a perforated front plate, guide jet, test point.



Elegant-VISupply air valve

Dimensions

ØA ØB C DElegant VI-125 123 165 115 89Elegant VI-160 158 198 124 86

Elegant-VI


125 6829 6 9 12 23 70 119

160 6830 10 15 19 34 78 124

m3/h 60 90 120 170 220 20-25 30 35-40

l/s 17 25 33 47 61 dB (A)

Air valves

19|

Elegant-VTSupply air valve

FunctionThe Elegant has been especially developed for providing a draught-free air supply from the rear walls of offices, hotel rooms etc. Maximum temperature difference ΔT 10K is permissible. The Elegant is also suitable for VAV systems, as the distribution pattern is maintained across the entire flow area.


VersionsThe Elegant is available in sizes Ø100 and Ø125, and in five different versions : VT has a perforated front plate. Can be mounted directly in a T-piece or pre-embeded bend. The air flow can be adjusted by using different number of plastic plugs.

MountingThe diffuser is installed directly onto the spiral duct. Dismantling of the supply air unit : Turn the unit and pull straight out.


165

33.2

59.3

Dimensions

With the pressure distribution plate in the back of the diffuser, the airflow can be adjusted by using different num-ber of plastic plugs.


63 125 250 500 1K 2K 4K 8KVT 100 9 -7 -3 0 -1 -6 -7 -11VT 125 9 -3 -1 1 0 -8 -10 -15



Mid-frequency band, Hz 63 125 250 500 1K 2K 4K 8KVT 100 9 -7 -3 0 -1 -6 -7 -11VT 125 9 -3 -1 1 0 -8 -10 -15

Elegant-VT


100 6202 10 16 20 11 34 57

125 6207 4 5 6 37 28 50

m3/h 45 60 75 80 20-25 30 35-40

l/s 12 17 21 22 dB (A)

Air valves

20 |

BHCReturn air self regulating motorized valvewith presence and humidity sensor

FunctionBHC 100 is a motorized damper with integrated motion (PIR) and humidity sensor for bathroom installations. The extract units may be installed either on the wall (in a vertical or horizontal posi-tion), or the ceiling. The humidity and the motion sensors work independently of each other. The damper opens whenever motion is indicated and closes 25 min after the last indication. The hu-midity sensor controls the fully modulating damper from RH 30% to 75%. The movement sensor is dependent on a power supply and the BHC uses either a 9V battery or 12V AC. The humidity sensors will open the damper regardless of a power supply.

Spigot VersionsØ100 mm and Ø125 mm (with adapter).Ø80 mm (with special sleeve Ø80 mm). note: the BPD is delivered with adapter Ø100 mm. The BPD dampers are especially useful in constant pressure systems for example block of flats.

Accessories100/125 inlet adapter and 12/9 v transformer.

Airflow/Pressure Chartenables to adapt the fixed shutter position. supplied on installation instruction)

More Standard and better longevity:2 x 1.5 Volts AAA LR03 Batteries.

Buzzer:Enables to inform the occupant when the battery needs to be replaced (i.e. when the battery level is below 2.2V). This buzzer rings when the presence sensor or the switch is activated.

Possibility to connect a dedicated “CAL” for 12VAC supply.

Dimensions

Type Art NoBHC-100 7178Transformer-12V 7387Inlet adapter Ø100- Ø125 7484

Air valves

21|

ALReturn air self regulating valve

DesignFunctionIntended to equip the facilities housing MEV, housing and local service, the range of the AL extraction air valves self meets the regulatory requirements while combining aesthetics and technology. Design fluid grid in several colors, reliability mechanical, proven functionality, per-formance ventilation and noise are the major assets of all AL air valves series. The AL air valves meets the residential requirements of the NF MEV. Single or double speed, both models perfectly consistent allow a uniform architectural treatment between kitchen, bathroom and WC.

ModelProduced in white polystyrene(standard), the AL air valve, installed in WC room and baths, pro-vides a flow of extraction determined.

OperationThe regulator consists of a rigid component and ensures a determined air flow of extraction within a range of pressure between 50 and 160 Pascals.

AL is available in the following air flow: 15, 30, 45, 60, 75, 90, 120 and 150 m3/h

MaintenanceTo maintain maximum efficiency, it is necessary to conduct a periodic cleaning:

• Remove the grille (4) and regulator (3) the body of the valve (removed from the sleeve if necessary).

• The sleeve (1) shall not be detached from the duct.• Clean all either in the upper part of a dishwasher, either manually with soap and water, nothing

disassemble the regulator.• Walk up the valve.

InstallationThe AL is installed in vertical walls by simple fitting onto a 125 Ø sleeve fixed on the aeration duct. The lip seal ensures that the sleeve is securely fixed and watertight. Possible fitting with Ø 99, 116, 150 or 160 mm. When ceiling mounted, an adapted sleeve can be used (125 Ø, 3-claw plasterboard sleeve, or 125 Ø plastic sleeve for penetrating slabs for use with the 125 Ø sleeve).

1. Collar Ø 125 with lip seal (delivered separately).

2. Body of the valve.3. Regulator.4. Removable grille.

Acoustic charecteristics LW dB(A)

AL 70Pa 100Pa 130Pa 160Pa15 m3/h 19 27 31 3430 m3/h 27 30 33 3645 m3/h 27 33 34 37

Type Art No.AL 15 35028AL 30 35029AL 45 35030AL 60 35031AL 75 35032AL 90 35033AL 120 35034AL 150 35035

Slab penetration sleeve (Polystyrene)

275

Ø12

5

3-Claw plasterboard sleeve

155

Ø125

100

Air valves

22 |

Design

1. Removable louver grill2. Casing vent3. Support plate with sleeve and rubber ring4. Control module5. Electric connection box

AEReturn air self regulating motorized valve

FunctionIntended to equip the facilities housing MEV, housing and local service, the range of the AE extraction air valves self meets the regulatory requirements while combining aesthetics and technology. Reliability mechanical, proven functionality, performance ventilation and noise are the major assets of all AE air valves series. The AE air valves meets the habitat requirements of the NF MEV. Single or double speed, both models perfectly consistent allow a uniform architec-tural treatment between kitchen, bathroom and WC.

ModelProduced in white polystyrene(standard), the AE air valve, installed in WC room and baths, pro-vides a flow of extraction determined.

OperationThe regulator consists of a rigid component and ensures a determined air flow of extraction within a range of pressure between 50 and 160 Pascals.

PrincipalsThe extract is always on tension thanks to a connection normally switched off.An impulse on the switch creates a power cut which opens the extract to its maximumflow (opening time: around 40 seconds).The 230 V supply of the extract is provided by two wires (2 x 1.5 mm²) to be connected,going out by the back of the support plate (see drawing). This must have a protec-tiondevice clearly identified on the electric board - class II electric appliance -.After taking out the casing vent (2), unscrew the box (5). The wires go through a cableat the back of the plate and linked to the connection box.The support-plate of the extract must be screwed on the wall.On the first stand-by mode, the AE valve will normally extract the maximum air-flow.

WiringBefore any operation on the support plate (3), the tension must be switched off (the time-switch being constantly on stand-by mode) The tension is made through a push button specially dedi-cated to this specification.

MaintenanceThe Extract AE must be periodically cleaned (at least twice a year) in order to keep their entire efficiency. Cleaning procedure :• Remove the casing vent (2) of the plate (3) and remove the flap (4).• The plate (3) linked to the duct must not be touched. The elements on it do not need any cleaning.• Clean the casing vent (2), the grill (1) and the control module (4)with soapy water then rince.• Fix back the control momule (4)• Fix back the casing part (2) on the plate (3)

Ceiling mountingCeiling mounting, the unit can be fixed on the ceiling using a three-claw plasterboard sleeve or a 125 Ø plastic sleeve for penetrating slabs. A ceiling mounting needs the using of a return angle guide for the concerned models.

1

2

5

3

4

200

150

100

50

040 60 80 100 120 140 160 Pa

120

6045

3015

Spadek ciśnienia ∆pt

Prz

epły

w p

owie

trza

q

Type Art NoAE 15/30 31412AE 30/60 31413AE 45/120 31414

275

Ø12

5

plastic sleeve for penetratingslabs :

Three-claw plasterboard sleeveØ 125 :

155

Ø125

100

Ø12

5

Return angle guide :

48

17

Acoustic charecteristics LW dB(A)AE 70Pa 100Pa 130Pa 160Pa15/30 m3/h 24 27 30 3330/60 m3/h 25 31 34 3645/120 m3/h 27 33 34 37

Air valves

23|

VTKSelf adjusting inlet air valve

DimensionsFunctionThis self-adjusting fresh air vent has a tem-perature sensitive thermostat bulb which regulates the vent plate, adjusting the air gap and air flow according to the outside tempera-ture. When it is set to ‘automatic’ the valve disc reduces the air supply when the outside temperature falls, and increases the flow when the outside temperature rises. Spacers for maintaining minimum air flow are available as an accessory. Supplied complete with a thermostat bulb for temperatures between -5 and +10°C, plus a wall duct and external grille. Max wall thickness is 270 mm.

Accessories- Spacer ring 2mm (100 & 160mm)- Spacer ring 4mm (100 & 160mm)- Filter (100 & 160mm)

ØA ØB ØC ØDVKT 80 80 40 147 85VKT 100 95 40 147 104VKT 160 157 47 207 163

VTK

Size Art No Filter Ring-2mm

Ring-4mm Q Min (m3/hr - l/s) Min Pressure (pa) QMax (m3/hr - l/s) Max Pressure (pa)

80 5657 5406 5407 20 / 6 3 100 / 28 63

100 5658 5664 5406 5407 20 / 6 3 100 / 28 64

160 5659 5567 5406 5407 30 / 8 3 165 / 46 80

Air valves

Not Available

24 |

ØC D Øh WOVE 100 150 62 100 70-145OVE 125 175 62 125 70-145OVE 160 210 72 160 70-145OVE 200 250 72 200 70-145

FunctionThe OVE can be used in all types of premises. In the OVE the outside casing of the air trans-fer device is acoustically insulated to reduce the risk of sound interference.

DesignThe OVE is manufactured from steel and the outside casing has a white powder-coated fin-ish (RAL 9010-80). Available in the following sizes: Ø100, Ø125, Ø160 and Ø200.

Mounting OVEThe two mounting rings screws directly onto the wall or are fitted together with the bolting that are included, after which the outside cas-ing can be pressed into place.

Ordering CodeThe ordering code is OVE - 100.


OVETransfer air valve

Dimensions

The diagram showsAir volume (l/s and m3/h), total pressure (Pa) and sound pressure level [dB(A)]. Mid-frequency band, Hz 63 125 250 500 1K 2K 4K RwOVE 100 19 21 25 23 22 31 32 25OVE 125 19 20 24 22 23 30 32 25OVE 160 19 19 24 21 25 30 32 26OVE 200 18 20 19 21 26 30 32 26

OVE

Size Art No Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)

100 6183 75 138

125 6184 22 80 176

160 6185 24 45 91

200 6186 15 33 132

m3/h 80 120 160 235 460

l/s 22 33 44 65 128


Air valves

25|

DimensionsFunctionThe OVR can be used in all types of premises. In this both the outside casing and the middle section are acoustically insulated, providing a high level of sound attenuation. The OVR is also lightproof.

DesignThe OVR is manufactured from steel and the outside casing has a powder-coated finish in standard white (RAL 9010-80). The acoustic insulation is fibre-free. Available in two sizes: Ø125 and Ø160.

Mounting OVRTwo mounting rings are included which are fitted onto the middle section without the need for tools. Screw the mounting rings directly onto the wall or fit them together with the bolting that are included, after which the outside casing can be pressed into place.

Ordering CodeThe ordering code is OVR - 125.


OVRTransfer air valve

ØC D Øh WOVR 125 175 62 125 70-145OVR 160 210 72 160 70-145

The diagram showsAir volume (l/s and m3/h), total pressure (Pa) and sound pressure level [dB(A)]. Mid-frequency band, Hz 63 125 250 500 1K 2K 4K RwOVR 125 15 35 29 22 24 24 32 24OVR 160 15 35 29 22 24 24 32 24

OVR


125 6187 53 88

160 6188 14 49 113

m3/h 80 120 160 260

l/s 22 33 44 72


Air valves

26 |

A B H LOVX 300 370 130 50 300OVX 500 570 130 50 500OVX 700 770 130 50 700OVX 850 920 130 50 850

OVXTransfer air valve

FunctionThe OVX is an air transfer device with rectan-gular front panels which is suitable for use in all types of premises.

DesignThe air transfer device consists of two frames and two front panels, which can be installed whatever the thickness of the wall. Both front panels are acoustically-insulated, making this air transfer device suitable for use in premises where low sound levels are required. The device is manufactured from steel and the front panels have a white powder-coated fin-ish (RAL 9010-80). The OVX is available in the following sizes: 300, 500, 700 and 850.

MountingThe frame screws directly onto the wall, after which the outside casing can be suspended. 20 50 100 150 lis.

Sound reduction factorThe sound reduction factor (R) indicates a wall’s total sound reduction included the air transfer device. The following definitions are used to calculate R:

Ordering CodeOVX - 300 with dimensions.


1. Use the formulaWhere R0 = The wall’s reduction factor (dB) depending on the wall material (obtainable from the supplier. Rw The air transfer device’s reduction factor (dB), obtained from the table.

2. Use the diagram where ΔR=The difference between the reduc-tion factors of the wall and the air transfer device.A = The wall’s area (m2).Rm= The decrease of the wall’s reduction factor due to the air transfer device.

3. Use the formula R = R0 - Rm Where R = The sound reduction factor (dB).Where R0 = The wall’s reduction factor (dB) depending on the wall material (obtainable from the supplier).

Rm = The decrease of the wall’s reduction factor due to the air transfer device reduction with the air transfer device installed.

Dimensions

H

A

B0 0

L

H X L = size of hole required

The diagram showsAir volume (l/s and m3/h), total pressure (Pa) and sound pressure level [dB(A)]. Mid-frequency band, Hz 63 125 250 500 1K 2K 4K RwOVX 300 39 24 23 23 32 52 71 30OVX 500 39 23 22 23 32 50 71 30OVX 700 36 19 20 19 31 42 68 27OVX 850 36 21 19 22 29 48 69 27

OVX


300 6189 26 61 161

500 6190 23 63 172

700 6191 25 72 128

850 6192 17 47 81

m3/h 120 180 290 465 615

l/s 33 50 81 129 171


Air valves

27|

DimensionsFunctionThe grille directs the air with help of deflectors to both horizontal and vertical directions. The damper or plenum box provides even distribution of air through the whole grill.

DescriptionNOVA-A is rectangular aluminium grille with adjustable deflectors. NOVA-A grille can be used in commercial and industrial premises and can be used for supply, or return air. It is intended for mounting into wall, ceiling, or into window sill. NOVA-A is supplied with springs as a standard.

DesignNOVA-A grille is manufactured from aluminium profiles white painted to RAL 9010.

MountingThe NOVA-A grille can be mounted directly into a duct or wall with mounting frame and springs.

Ordering CodeThe ordering code is NOVA-A-Size

Selection TableTable below shows the general product performance for more details please see selection soft-ware or contact your local systemair office.

NOVA-ADouble defflection grille for supply and return air

AccessoriesR1 NOVA damperOpposed blade damper Air volume flow can be adjusted with turning the screwdriver, Depth of the grille is 40 mm.

NOVA UR Mounting FrameFirst the mounting frame is fixed to wall or duct with screws or detachable arms, then the grille is fixed with springs to mounting frame.

PRG Plenum boxInsulated plenum box with inlet measuring damper controlPRG 1 = Rear connectionPRG 2 = Side connectionPRG 3 = Top/bottom connection

Wall grilles and diffusers

28 |

NOVA-A

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)NOVA-A UR R1 PRG1 PRG2 PRG3

500 x 150 41241 41273 41294 6217 6226 6432 12 18 24 6 11 20

400 x 200 41239 41271 41292

B505

12 17 23 5 10 17

800 x 100 41249 41281 41299 13 18 24 6 12 21

600 x 150 41245 41277 41297 11 16 22 4 8 14

1000 x 100 41228 41263 41284 11 16 22 4 8 14

300 x 150 41236 41268 41289 6213 6222 6430 11 16 21 7 17 26

500 x 100 41240 41272 41293 6216 6225 6429 10 16 20 7 15 25

300 x 200 41234 42124 42028 B505 9 18 20 4 15 19

400 x 150 41238 41270 41291 6215 6224 6431 9 18 20 4 15 19

600 x 100 41244 41276 41296 B505 10 15 21 4 11 22

m3/h 375 500 575 725 825 1100 20-25 30 35-40

l/s 104 139 160 201 229 306 dB (A)

NOVA-A

SizeArt No


500 x 200 41242 41274 41295 6218 6193 6433 13 20 26 5 11 18

600 x 200 41246 41278 41298 6219 6194 6434 14 19 24 5 8 13

800 x 150 41250 41282 41302

B505

14 19 24 5 8 13

1000 x 150 41230 41264 41285 13 22 30 3 9 16

500 x 300 41243 41275 42049 12 21 29 3 8 14

800 x 200 41251 41283 41303 16 21 29 4 7 13

600 x 300 41247 41279 42065 15 26 32 3 10 14

1000 x 200 41231 41265 41286 14 25 31 3 9 12

600 x 400 41248 41280 42066 17 27 35 3 8 13

m3/h 725 825 1100 1425 1950 2350 3000 20-25 30 35-40

l/s 201 229 306 396 542 653 833 dB (A)

NOVA-A

SizeArt No


200 x 100 41232 41266 41287 6211 6220 6426 7 10 14 9 19 33

200 x 150 41233 42112 42016 B505 8 13 17 6 16 29

300 x 100 41235 41267 41288 6212 6221 6427 8 13 18 7 18 31

400 x 100 41237 41269 41290 6214 6223 6428 9 16 18 7 18 24

m3/h 150 225 300 375 500 575 20-25 30 35-40

l/s 42 62 83 104 139 160 dB (A)


29|

NOVA-LLinear bar grille for supply and return air

FunctionThe grille directs the air with help of horizontal deflectors. The damper or plenum box provides even distribution of air through the whole grille.

DescriptionNOVA-L is rectangular aluminium grille with fixed deflectors and can be used in commercial and industrial premises. The grille is intended for supply, or return air. It is build into wall, ceiling, or window sill. NOVA-L is supplied with springs as a standard. As an accessory there are plenum boxes, mounting frames and dampers available.

DesignNOVA-L grille is manufactured from natural anodized aluminium profiles white painted to RAL 9010. Dimensions from 200x100 to 1000x200 are available on stock.

MountingThe NOVA-L grille can be mounted directly into a duct or wall with mounting frame and springs.

Ordering CodeThe ordering code is NOVA-L-Size


Dimensions

5

20

(H-2

0)x

(L-2

0)

(H+

30)x

(L+

30)

s

25

HxL





30 |

NOVA-L

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)NOVA-L UR R1 PRG1 PRG2 PRG3

200 x 100 41304 41266 41287 6211 6220 6426 6 9 13 11 26 59

200 x 150 42905 42112 42016 B505 7 10 15 10 24 46

300 x 100 41305 41267 41288 6212 6221 6427 7 10 15 10 24 46

400 x 100 41307 41269 41290 6214 6223 6428 9 13 17 13 25 44

300 x 150 41306 41268 41289 6213 6222 6430 8 11 16 9 17 32

500 x 100 41309 41272 41293 6216 6225 6429 8 11 15 7 15 28

300 x 200 42906 42124 42028 B505 9 16 20 7 22 34

400 x 150 41308 41270 41291 6215 6224 6431 10 13 17 10 17 28

600 x 100 41314 41276 41296 B505 10 14 17 10 19 31

m3/h 80 120 185 260 350 450 550 20-25 30 35-40

l/s 22 33 51 72 97 125 153 dB (A)

NOVA-L

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)NOVA-L UR R1 PRG1 PRG2 PRG3

500 x 150 41310 41273 41294 6217 6226 6432 12 15 18 10 17 25

400 x 200 41313 41271 41292

B505

10 16 23 7 17 32

800 x 100 41316 41281 41299 12 15 18 10 17 25

600 x 150 41315 41277 41297 11 17 24 7 17 33

1000 x 100 41319 41263 41284 10 16 23 7 17 32

500 x 200 41311 41274 41295 6218 6193 6433 12 20 25 7 20 29

600 x 200 41312 41278 41298 6219 6194 6434 13 19 23 7 14 20

800 x 150 41317 41282 41302

B505

12 20 25 6 19 28

1000 x 150 41320 41264 41285 13 22 27 6 18 27

500 x 300 42907 41275 42049 16 20 30 7 12 26

800 x 200 41318 41283 41303 16 24 30 7 17 25

600 x 300 42908 41279 42065 15 22 27 5 12 18

1000 x 200 41321 41265 41286 17 22 27 7 11 16

600 x 400 41530 41280 42066 19 23 36 6 9 21

m3/h 350 450 550 775 950 1175 1450 2225 20-25 30 35-40

l/s 97 125 153 215 264 326 403 618 dB (A)


31|

NOVA-RNon-vision return air grille

FunctionThe grille is used to intake the air from internal premises. Because of the inclined deflectors its not possible to see through the grille. The damper or plenum box balances the air.

DescriptionNOVA-R is rectangular aluminium grille with fixed deflectors and can be used in commercial and industrial premises. The grille is intended for return air. It is build into wall or ceiling. NOVA-R is supplied with springs as a standard.

DesignNOVA-R grille is manufactured from natural anodized aluminium profiles white painted to RAL 9010. Deflectors are at 45° angle inclined downwards for anti-rain function with 20 mm pitch.

MountingThe NOVA-R grille can be mounted directly into a duct or wall with mounting frame and springs.

Ordering CodeThe ordering code is NOVA-R-Size

Selection TableTable below shows the general product performance for more details please see selection software or contact your local systemair office.

Dimensions

540H

xL

(H-2

0)x

(L-2

0)

25

(H+

30)x

(L+

30)





32 |

NOVA-R

SizeArt No

Air flow range (m3/h, l/s) and DPt Pressure (Pa)NOVA-R UR R1 PRG1 PRG2 PRG3

200 x 100 41140 41266 41287 6211 6220 6426 4 10 29

500 x 150 41519 41273 41294 6217 6226 6432 4 10 18

800 x 100 41527 41281 41299B505

4 10 18

200 x 150 41141 42112 42016 2 12 22

300 x 100 41512 41267 41288 6212 6221 6427 2 12 22

400 x 100 41515 41269 41290 6214 6223 6428 6 12 20

300 x 150 41513 41268 41289 6213 6222 6430 5 14 21

500 x 100 41518 41272 41293 6216 6225 6429 4 12 18

300 x 200 41514 42124 42028 B505 3 9 14

400 x 150 41516 41270 41291 6215 6224 6431 4 11 16

600 x 100 41522 41276 41296 B505 4 12 18

m3/h 40 60 100 140 180 220 270 360

l/s 11 17 28 39 50 61 75 100


NOVA-R

SizeArt No

Air flow range (m3/h, l/s) and DPt Pressure (Pa)NOVA-R UR R1 PRG1 PRG2 PRG3

400 x 200 41517 41271 41292

B505

4 12 18

600 x 150 41523 41277 41297 5 7 19

1000 x 100 41137 41263 41284 4 12 18

500 x 200 41520 41274 41295 6218 6193 6433 3 11 16

600 x 200 41524 41278 41298 6219 6194 6434 2 7 16

800 x 150 41528 41282 41302

B505

3 10 15

1000 x 150 41138 41264 41285 4 9 14

500 x 300 41521 41275 42049 4 9 14

800 x 200 41529 41283 41303 4 9 13

600 x 300 41525 41279 42065 3 6 9

1000 x 200 41139 41265 41286 4 8 13

600 x 400 41526 41280 42066 3 8 12

m3/h 220 270 360 450 550 675 825 1050 1325

l/s 61 75 100 125 153 188 229 292 368



33|

NOVA-FNon-vision return air grille with G3 filter

FunctionThe grille is used to intake the air from internal premises and cleans the air with included filter. This safes money and time because it’s easier to clean the filter of the grille instead the whole duct section and the AHU filter. The filter can be checked in a very convenient way by opening the grille and changing the filter if necessary. Because of the inclined deflectors it’s not possible to see through the grille.

DescriptionNOVA-F is rectangular aluminium grille with fixed deflectors and galvanized steel box for filter. It can be used in commercial and industrial premises. The grille is intended for filtering the return air and can be build into wall or ceiling. NOVA-F is supplied with hinges and knob as a standard.

DesignNOVA-F grille is manufactured from natural anodized aluminium profiles white painted to RAL 9010. The box is from galvanized steel equipped with mesh screen. Inside the box is an area for filter. Standard supplied filter is a G–3 class filter, manufactured from white coloured polyester, with thickness of 12 – 15 mm. Temperature resistance of the filter is up to 100°C with middle seclusiveness (Am) of 92,5%..

MountingThe NOVA-F grille is mounted directly into a duct or wall with screws via holes in the steel box. The grille is then closed by the hinges and securely closed with the knob.

Ordering CodeThe ordering code is NOVA-F-Size


Dimensions

AccessoriesPRG Plenum boxInsulated plenum box with inlet measuring damper controlPRG 1 = Rear connectionPRG 2 = Side connectionPRG 3 = Top/bottom connection

540H

xL

(H-2

0)x

(L-2

0)

25

(H+

30

)x(L

+3

0)

Fi

lt

er


34 |

NOVA-F

Size Art No Air flow range (m3/h, l/s) and DPt Pressure(Pa)

500 x 150 42894 5 10 18

400 x 200 42892 3 11 17

800 x 100 42902 5 10 18

600 x 150 42898 5 7 18

1000 x 100 42882 3 11 17

500 x 200 42895 4 10 15

600 x 200 42899 2 7 10

800 x 150 42903 3 10 15

m3/h 180 220 270 360 435 535

l/s 50 61 75 100 121 149


NOVA-F


1000 x 150 42883 4 9 15

500 x 300 42896 4 10 14

800 x 200 42904 4 10 14

600 x 300 42900 4 6 15

1000 x 200 42884 3 8 13

600 x 400 42901 3 8 12

m3/h 360 435 535 685 835 1035 1335

l/s 100 121 149 190 232 288 371


NOVA-F


200 x 100 42885 3 11 24

200 x 150 42886 3 9 22

300 x 100 42887 3 9 22

400 x 100 42890 5 12 19

300 x 150 42888 4 14 20

500 x 100 42893 1 11 18

300 x 200 42889 4 8 13

400 x 150 42891 4 11 17

600 x 100 42897 5 12 18

m3/h 40 60 90 140 180 220 270

l/s 11 17 25 39 50 61 75



35|

Dimensions

Sinus-BRNozzle diffuser with rear entry plenum

FunctionSinus-B series of wall-mounted nozzle diffusers are built to achieve very high induction combined with changeable air distribution pat-terns. Sinus-B consists of a front plate with graded perforation above a number of nozzles (size 35 mm) and a plenum box with an adjustment damper. The plenum box is fitted with a powder coated neck flange facilitating mounting and taking up tolerances from the recess and makes a nice fit with the wall. The combination of nozzles and perfora-tion achieves outstanding induction of room air. Maximum temperature difference for cooled air ∆T 14 K.

MountingA recess must be made in the wall in accordance with the dimension table and drawing. The plenum box is placed in the recess and pushed inwards till it stops against the plenumbox’s neck flange. From the backside of diffuser bend the metal fixing bands to each side and fix to back side of wall with screws. The front plate is fitted into the plenum box by first fitting the top hook-plate into its correspondent on the plenum box and then bending the bottom edge smoothly inwards and fitting the bottom hook-plate with the plenum’s bottom. Gently slide the front plate downwards till it stops.

øK

Sinus A B C D E F H I x J* ØK

-BR-100 400 149 227 - 444 199 34 404x154 99

-BR-125 500 199 227 - 544 249 38 504x204 124

-BR-160 500 199 227 - 544 249 38 504x204 159

-BR-200 700 249 227 - 744 299 42 704x254 199

Sound attenuation, DL (dB)Mid-frequency band, Hz

Sinus 63 125 250 500 1k 2k 4k 8k-BR-100 21 17 12 9 1 1 3 6-BR-125 22 16 10 10 1 2 3 5-BR-160 20 14 10 9 1 2 3 5-BR-200 20 12 7 6 1 2 3 5

Sound power level, LwLw(dB) = LpA + Kok (LpA = diagram Kok = table)correction factor Kok

Mid-frequency band, HzSinus 63 125 250 500 1k 2k 4k 8k-BR-100 14 1 6 1 -3 -8 -12 -12-BR-125 10 -1 5 1 -1 -8 -12 -16-BR-160 14 -1 3 3 -3 -11 -18 -20-BR-200 10 -1 4 2 -3 -9 -11 -13

Sinus-BR


100 6735 3 4 6 14 42 71

125 6736 4 5 8 15 36 76

160 6737 5 7 9 16 40 65

200 6738 5 7 10 15 31 58

m3/h 80 120 160 235 310 435 20-25 30 35-40

l/s 22 33 44 65 86 121 dB (A)


36 |

Sinus-BSNozzle diffuser with side entry plenum

FunctionSinus-B series of wall-mounted nozzle diffusers are built to achieve very high induction combined with changeable air distribution pat-terns. Sinus-B consists of a front plate with graded perforation above a number of nozzles (size 35 mm) and a plenum box with an adjustment damper. The plenum box is fitted with a powder coated neck flange facilitating mounting and taking up tolerances from the recess and makes a nice fit with the wall. The combination of nozzles and perfora-tion achieves outstanding induction of room air. Maximum temperature difference for cooled air ∆T 14 K.

MountingA recess must be made in the wall in accordance with the dimension table and drawing. The plenum box is placed in the recess and pushed inwards till it stops against the plenumbox’s neck flange. From the backside of diffuser bend the metal fixing bands to each side and fix to back side of wall with screws. The front plate is fitted into the plenum box by first fitting the top hook-plate into its correspondent on the plenum box and then bending the bottom edge smoothly inwards and fitting the bottom hook-plate with the plenum’s bottom. Gently slide the front plate downwards till it stops.

øK

Sinus A B C D E F H I x J* ØK

-BS-100 400 149 283 208 444 199 34 404x154 99

-BS-125 500 199 307 221 544 249 38 504x204 124

-BS-160 500 199 339 238 544 249 38 504x204 159

-BS-200 700 249 379 258 744 299 42 704x254 199

Sound attenuation, DL (dB)

Mid-frequency band, Hz

Sinus 63 125 250 500 1k 2k 4k 8k

-BS-100 21 17 12 8 3 4 4 5

-BS-125 21 16 11 6 3 3 4 5

-BS-160 19 14 11 7 4 3 3 4

-BS-200 19 11 8 5 4 2 4 5

Sound power level, Lw

Lw(dB) = LpA + Kok (LpA = diagram Kok = table)

correction factor Kok

Mid-frequency band, Hz

Sinus 63 125 250 500 1k 2k 4k 8k

-BS-100 13 2 6 1 -2 -8 -13 -13

-BS-125 10 1 6 2 -1 -10 -17 -19

-BS-160 8 1 5 2 -2 -7 -12 -13

-BS-200 8 3 3 2 -2 -9 -13 -15

Dimensions

Sinus-BS


100 6731 3 4 6 10 40 70

125 6732 4 5 7 17 35 62

160 6733 5 6 9 14 35 65

200 6734 5 7 10 10 34 56

m3/h 80 120 160 220 310 435 20-25 30 35-40

l/s 22 33 44 61 86 121 dB (A)


37|

Dimensions

Hella-ALinear slot diffuser

FunctionHella-A linear slot diffusers are designed for cooling or heating in standard office height of min 2.5m to 3.5m entrance halls. Ideal supply temperature to ambient should not exceed 12K to ensure low terminal velocities in the occupied zone. Hella-A slot diffusers have deflectors which slide from left to right easily to assure a good air outlet pattern adjustment

DesignHella-A slot diffusers are manufactured from profiled aluminium and have as standard black deflectors and hit and miss damper in galvanized steel. Slot diffusers are painted to RAL 9010 as standard

MountingSlot diffusers contain a mounting bridge as standard which can be mounted directly inside the duct, or to be easily mounted to the plenum box.

Selection tableTable below shows the general product performance for more details please see selection soft-ware or contact your local Systemair office

Dimensions TableType H (mm) B (mm) E (mm) D F (mm) G (mm)1 221 76 47 125 76 602 272 114 87 160 94 983 374 152 127 200 114 1364 374 190 167 200 114 174

Hella

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Hella-A -PB

600-1 60494 42349 1 2 2 2 36 54

600-2 60498 42353 1 2 3 7 14 37

600-3 60502 42357 2 2 3 9 20 35

600-4 60506 42361 2 3 3 10 26 38

1200-1 60495 42350 1 2 3 7 14 37

1200-2 60499 42354 2 3 3 10 26 38

1200-3 60503 42358 1 3 3 2 15 23

1200-4 60507 42362 2 3 4 6 13 22

1800-1 60496 42351 2 2 3 9 20 35

1800-2 60500 42355 1 3 3 2 15 23

1800-3 60504 42359 2 3 3 4 8 14

1800-4 60508 42363 2 3 4 4 8 14

2400-1 60497 42352 2 3 3 10 26 38

2400-2 60501 42356 2 3 4 6 13 22

2400-3 60505 42360 2 3 4 4 8 14

2400-4 60509 42364 2 3 4 4 8 13

m3/h 50 70 80 140 215 265 325 415 540 690 20-25 30 35-40

l/s 14 19 22 39 60 74 90 115 150 192 dB (A)

Linear wall & ceiling diffusers

38 |

FunctionThe Elegant has been especially developed for providing a draught-free air supply from the rear walls of offices, hotel rooms etc. The guide jet prevents the air stream from falling into the occupied zone before it has reached an acceptable temperature. Max. temperature difference ΔT 10K is permissible. The Elegant is also suitable for VAV systems, as the distri-bution pattern is maintained across the entire flow area.


VersionsThe Elegant is available in sizes Ø100, Ø125 and Ø160, and in five different versions: Elegant AT has a perforated front plate, black.



Dimensions

ØA ØB C DElegant AT 100 98 165 111 87Elegant AT 125 123 165 115 89

Elegant-ATSupply step diffuser



Mid-frequency band, Hz 63 125 250 500 1K 2K 4K 8KAT 100 10 -5 -4 1 -1 -6 -10 -18AT 125 13 1 0 -1 -1 -5 -6 -14

Elegant-AT


100 6965 4 4 5 68 112 158

125 6966 4 4 5 47 78 110

m3/h 45 60 75 90 20-25 30 35-40

l/s 12 17 21 25 dB (A)

Floor & step diffusers

39|

SFDFloor Diffuser

DescriptionCircular diffuser with swirl air supply, suitable for false floor installation. Diffuser slots are designed to ensure a swirl air supply with high levels of induction, achieving reduced air velocities and a moderate temperature gradi-ent in the occupied zone. The diffuser may be used in rooms with a variable or constant air volume.

Product Characteristics- Manufactured in aluminium- Manufactured in sheet steel- Sheet steel drip trap and swirl unit- High levels of induction- Simple to clean- Can be used with connection plenum

TypeSFD : Standard finish in milled aluminumSFD-RAL : Painted to RAL color upon request

Verticalthrow

Horizontal throw

L E Model ØA ØB C 1 DIFFUSER 2 DIFFUSERS 3 DIFFUSERS 4 DIFFUSERS MAXIMUM MINIMUM150 190 150 225 500 1000 1500 2000 32 14200 240 200 275 1 SPIGOT Ø100 2 SPIGOT Ø100 2 SPIGOT Ø125 2 SPIGOT Ø125 32 14

SFD

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)SFD -PB

150 42453 42455 0.7 1.2 1.6 2.3 10 15 30

200 42454 42456 0.6 0.8 1.2 1.5 1.7 2 7 11 23

m3/h 30 50 70 100 130 150 170 20-25 30 35-40

l/s 8 14 19 28 36 42 47 dB (A)

∆T = -6KWhen ∆T = -4K, then l0.2 x 1.2 ; ∆T = -8K, then l0.2 x 0.88

Floor & step diffusers

40 |

NOVA-DNon-vision transfer air door grille

FunctionThe grille fixed deflectors have pitch of 15 mm and this space allows the air to pass freely be-tween both sides of the grille. Because of the V arranged deflectors it is not possible for light to pass through.

DescriptionNOVA-D is rectangular aluminium door transfer grille with fixed deflectors and can be used in commercial and industrial premises. The grille is intended for free passage of air through doors.

DesignNOVA-D grille is manufactured from natural anodized aluminium profiles white painted to RAL 9010. The grille is supplied with counter frame for aesthetic installation in door openings. Both grille and counter frame can be fixed via screws through bevelled holes

MountingThe NOVA-D grille can be mounted directly into an opening in the doors and fixed with screws via pre punched bevelled holes.

Ordering CodeThe ordering code is NOVA-D-Size


Dimensions

NOVA-D

Size Art No Air flow range (m3/h, l/s) and DPt Pressure (Pa)

200 x 100 42870 9 16

200 x 150 42871 9 16 31

300 x 100 42872 9 16 31

300 x 150 42873 9 18 32

400 x 200 42874 7 20 39

500 x 200 42875 7 25 40

600 x 300 42876 9 22 33

m3/h 60 80 110 150 190 250 350 440 665 890

l/s 17 22 31 42 53 69 97 122 185 247


5

20

25

(H1+

3)x

(L-1

7)

(H1+

53)x

(L+

33)

529

HxL 15

H1x(L

-20)

25

(H1+

50)x

(L+

30)

min.26

max.42

Transfer & door grilles

41|

NOVA-E

SizeArt No

NOVA-E -UR -R1 PRG-1 PRG-2 PRG-3200 x 100 41325 41266 41287 6211 6220 6426200 x 150 42877 42112 42016 B505300 x 100 41326 41267 41288 6212 6221 6427300 x 150 41327 41268 41289 6213 6222 6430300 x 200 42878 42124 42028 B505400 x 100 41328 41269 41290 6214 6223 6428400 x 150 41329 41270 41291 6215 6224 6431400 x 200 41330 41271 41292 B505500 x 100 41331 41272 41293 6216 6225 6429500 x 150 41332 41273 41294 6217 6226 6432500 x 200 41333 41274 41295 6218 6193 6433500 x 300 42879 41275 42049 B505

NOVA-E

SizeArt No

NOVA-E -UR -R1 PRG-1 PRG-2 PRG-3595 x 595 41334 42457

B505600 x 100 41335 41276 41296600 x 150 41336 41277 41297600 x 200 41442 41278 41298 6219 6194 6434600 x 300 42880 41279 42065

B505

600 x 400 42881 41280 42066800 x 100 41443 41281 41299800 x 150 41444 41282 41302800 x 200 41445 41283 41303

1000 x 100 41322 41263 412841000 x 150 41323 41264 412851000 x 200 41324 41265 41286

Dimensions

NOVA-EEgg crate return air grille

FunctionThe grille has a very large free area formed by 13 x 13 mm square openings and therefore is ideal for return air. The damper or plenum box balances the air.

DescriptionNOVA-E is rectangular aluminium return grille with egg crate core which can be used in com-mercial and industrial premises. The grille is intended for return air and is build into wall or ceiling. NOVA-E is supplied with springs as standard.

DesignNOVA-E grille is manufactured from aluminium profiles white painted to RAL 9010. If needed the grille can be fitted into the T-bar ceiling with 600 x 600 mm square opening.

MountingThe NOVA-E grille can be mounted directly into a duct or wall with mounting frame and springs.

Ordering CodeThe ordering code is NOVA-E-200x100




540

H x

L 13

(H-2

0)x

(L-2

0)

25

(H+

30)x

(L+

30)

Transfer & door grilles

Not Available

42 |

NOVA-CSingle or double deflection grille for circular ducts

DimensionsFunctionNOVA-C grille series are designed specifically to be installed onto round ducts. The construction allows the mounting of each grill height to various diameters of duct diameters. Adjustable single or double deflection with opposed blade design allows for a full flexibility of the use and reduc-tion in draft in occupied zone and facilitates the system balancing. All grilles are dispatched in galvanized finish to bring harmonious look to the duct construction.

DesignThe frame, blades and the damper assembly are manufactured from roll-formed galvanized sheetsteel to bring robust construction.

MountingNOVA-C grilles are pre-punched through the front face frame to be mounted onto the duct with self tapping screws.

Optional ExtrasHit & Miss damper, single leaf damper, opposed blade damper and mounting frame

Selection TableTable below shows the general product performance for more details please see selection soft-ware or contact your local Systemair office

Ordering CodeThe ordering code is NOVA-C-1-Size for single deflection or NOVA-C-2-Size for double deflection

AccessoriesR1 NOVA damper Opposed blade damper Air volume flow can be adjusted with turning the screwdriver, Depth of the grille is 40 mm.

NOVA-C

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)NOVA-C-1 NOVA-C-2 R1

225x75 40775 40871 40973 14 22 28 15 37 50

225x125 40791 40887 40976 17 24 30 13 25 38

325x75 40776 40872 40974 15 25 30 12 32 42

325x125 40792 40888 40977 20 29 36 13 26 36

425x75 40777 40873 40975 16 28 33 10 30 37

m3/h 225 300 375 525 615 675 775 20-25 30 35-40

l/s 62 83 104 146 171 188 215 dB (A)

Height Duct penetration Duct Diameterof the grille E(mm) D(mm)H NOVA-C-1 NOVA-C-2 min Max75 32 54 150 450125 32 54 315 900

(H-2

0)x(

L-20

)25

(H+3

0)x(

L+30

)

HxL

øD

E

NOVA-C-1

(H-2

0)x(

L-20

)25

(H+3

0)x(

L+30

)

HxL

E

øD

NOVA-C-2

Duct mounted grilles & diffusers

43|

Dimensions

Sinus-DCCircular duct mounted nozzle difuser for supply air

FunctionSinus-DC is a nozzle diffuser for duct mount-ing. Sinus-DC (for circular duct) consists of a front plate with several nozzles (size 57 mm) and a check rail. The design of the nozzles en-ables the diffuser to achieve very high induc-tion of room air. The Sinus-DC can be used for both cooled and heated air. Max. temperature difference: ΔT 10 K.

MountingMake a hole in the duct according to the di-mension table. The diffuser is fitted in the hole and fixed securely by screwing it to the duct. Make sure that the opening of the checkrail is pointed against the air flow.

Sinus DC Size, hole Fits, dust

A C dim. dim.

-1001 1040 70 970x70 100-250

-1501 1540 70 1470x70 100-250

-1002 1040 125 970x135 160-315

-1502 1540 125 1470x135 160-315

-1003 1040 185 970x200 315-630

-1503 1540 185 1470x200 315-630

-1004 1040 200 970x250 315-630

-1504 1540 200 1470x250 315-630

Sound attenuation, ΔL (dB)

Mid-frequency band, HzSinus 63 125 250 500 1k 2k 4k 8k

-DC 1001 11 6 6 5 6 5 4 5-DC 1002 11 6 5 5 6 5 4 5-DC 1003 10 7 5 4 4 4 4 5-DC 1004 9 7 5 4 4 3 3 6-DC 1501 10 5 4 4 5 4 3 4-DC 1502 10 5 3 4 5 4 3 4-DC 1503 6 2 4 3 4 3 3 4-DC 1504 6 5 4 3 3 2 3 5


Mid-frequency band, HzSinus 63 125 250 500 1k 2k 4k 8k-DC 1001 4 8 7 1 -8 -14 -18 -13-DC 1002 5 9 9 2 -8 -15 -17 -12-DC 1003 8 11 8 1 -7 -15 -16 -13-DC 1004 12 14 7 1 -6 -14 -17 -12-DC 1501 4 7 8 2 -9 -14 -19 -16-DC 1502 3 7 9 2 -8 -17 -20 -16-DC 1503 7 10 8 2 -7 -15 -18 -15-DC 1504 11 14 7 1 -5 -13 -17 -14Tolerance ±4 ±2 ±1 ±1 ±3 ±3 ±6 ±8

Sinus-DC


1001 6649 2 3 5 7 16 25

1002 6651 4 6 9 4 18 34

1003 6653 6 11 13 4 26 37

1004 6655 7 11 14 5 20 32

1501 6650 3 4 6 4 11 23

1502 6652 5 7 10 6 17 26

1503 6654 6 10 13 5 17 27

1504 6656 8 11 15 8 15 29

m3/h 60 90 120 180 210 310 400 500 650 925 20-25 30 35-40

l/s 17 25 33 50 58 86 111 139 181 257 dB (A)


44 |

Dimensions

Sinus-DRRectangular duct or wall mounted nozzle diffuser for supply air

FunctionSinus-DR is a nozzle diffuser for duct ounting. Sinus-DR (for rectangular duct) consists of a front plate with several nozzles (size 57 mm) and a check rail. The design of the nozzles en-ables the diffuser to achieve very high induc-tion of room air. The Sinus-DR can be used for both cooled and heated air. Max. temperature difference: ΔT 10 K.

MountingMake a hole in the duct according to the di-mension table. The diffuser is fitted in the hole and fixed securely by screwing it to the duct. Make sure that the opening of the check rail is pointed against the air flow.

Sinus- DR Size, hole

A B C dim.

-1001 1042 110 60 970x70

-1501 1542 110 60 1470X70

-1002 1042 180 90 970X140

-1502 1540 180 90 1470X140

-1003 1042 250 125 970X210

-1503 1542 250 125 1470X210

-1004 1042 320 125 970X280

-1504 1540 320 125 1470X280


Mid-frequency band, HzSinus 63 125 250 500 1k 2k 4k 8k

-DR 1001 11 6 6 5 6 5 4 5-DR 1002 11 6 5 5 6 5 4 5-DR 1003 10 7 5 4 4 4 4 5-DR 1004 9 7 5 4 4 3 3 6-DR 1501 10 5 4 4 5 4 3 4-DR 1502 10 5 3 4 5 4 3 4-DR 1503 6 2 4 3 4 3 3 4-DR 1504 6 5 4 3 3 2 3 5


Mid-frequency band, HzSinus 63 125 250 500 1k 2k 4k 8k-DR 1001 4 8 7 1 -8 -14 -18 -13-DR 1002 5 9 9 2 -8 -15 -17 -12-DR 1003 8 11 8 1 -7 -15 -16 -13-DR 1004 12 14 7 1 -6 -14 -17 -12-DR 1501 4 7 8 2 -9 -14 -19 -16-DR 1502 3 7 9 2 -8 -17 -20 -16-DR 1503 7 10 8 2 -7 -15 -18 -15-DR 1504 11 14 7 1 -5 -13 -17 -14Tolerance ±4 ±2 ±1 ±1 ±3 ±3 ±6 ±8

Sinus-DR


1001 6641 2 3 5 7 16 25

1002 6643 4 6 9 4 18 34

1003 6645 6 11 13 4 26 37

1004 6647 7 11 14 5 20 32

1501 6642 3 4 6 4 11 23

1502 6644 5 7 10 6 17 26

1503 6646 6 10 13 5 17 27

1504 6648 8 11 15 8 15 29

m3/h 60 90 120 180 210 310 400 500 650 925 20-25 30 35-40

l/s 17 25 33 50 58 86 111 139 181 257 dB (A)


45|

KvadraLouver faced ceiling diffuser

FunctionKvadra supply- and exhaust diffuser for ceiling installation, to be used in offices, shops or similar premises. It can be connected to square ducts or circular ducts via connection transition KRC and to PER plenum box. The diffuser can be dismantled for duct cleaning. Kvadra has a high induction which makes it suitable for cooled air. Maximum temperature difference is ΔT 12 K.

DesignKvadra is manufactured from aluminium with a white powder-coated finish (RAL9010) and is available in the following sizes: (square) 150x150, 225x225, 300x300, 375x375, 450x450, and with KRC (circular) 150, 225, 300, 375 and 450. The connection transition KRC is manufactured from galvanized sheet metal and has a perforated metal sheet for pressure distribution and is simple to connect.

MountingCorrect adjustment requires a length of straight duct, 4 times the duct diameter in front of the PER plenum box. The distribution unit is connected to the duct with screws or pop rivets. Dismantling of the supply air unit: release the cones by gently pressing and turning the cones simultaneously. Reassemble the unit correspondingly. When assembling KRC to the Kvadra make sure that the connection edges fits into the KRC hold down springs. Gentle tap the two parts together so that the connection edges bottoms into the hold down springs.

Ordering codeKvadra-300 with dimension and the accessories are Transition KRC, Plenum box PER with removable damper and test points, Kvadra power paint RAL 9010 and Kvadra - AN Anodized Alumim satin finish.


Dimensions C Size

A B hole dim

Kvadra-150 143 295 226

Kvadra-225 218 370 301

Kvadra-300 293 445 376

Kvadra-375 368 520 451

Kvadra-450 443 595 526

Accessory KRC

ØD I HKRC-150 123 145 90KRC-225 158 220 90KRC-300 248 295 90KRC-375 313 370 90KRC-450 398 445 90

KVADRA

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)KVADRA KRC PER

150 6540 6530 6522 3 4 6 7 21 37

225 6541 6531 6523 4 5 6 8 19 30

300 6542 6532 6525 5 6 8 9 20 30

375 6543 6533 6526 4 6 8 4 18 25

450 6544 6534 6527 6 7 10 5 10 21

m3/h 100 150 200 275 350 475 600 725 1075 20-25 30 35-40

l/s 28 42 56 76 97 132 167 201 299 dB (A)

ØD1 ØD2 C E F GPER 125-160 124 162 360 250 47 210PER 160-200 159 202 450 300 47 280PER 200-250 199 252 500 350 47 305PER 250-315 249 317 565 450 47 330

Accessory : PER

Kvadra

Square ceiling diffusers

46 |

Dimensions

Size ØA D1 E125 123 98 153160 158 123 159200 198 178 151250 248 198 167315 313 248 176355 353 277 183400 398 398 183

CRS-TCircular swirl diffuser with fixed blades

FunctionCRS-T is a square ceiling swirl diffuser with fixed air guiding blades for T bar ceilings. Swirled stream quickly looses speed and temperature thanks to high induction therefore it can be used for high air exchanges and temperature can vary from -10K to +10K. It can also be used for supply or return air. The rotational turbulence produced, cause a rapid mixing of temperatures and considerably shorter jet throws. CRS-T swirl diffuser is also ideal to use for VAV systems, allowing variations in air flow rate from 100% to 25% without risk of detaching the jet from the ceiling.

DesignThe diffuser is manufactured from steel sheet powder painted to RAL9010 white.

MountingThe diffuser can be installed with a mounting bridge, with screws to the plenum box, directly to duct or dropped into a t-bar ceiling.

Ordering codeCRS-T-125-600Product code, CRS-TInlet size, Ø125Face size, 600 x 600

AccessoriesCRS-D – Butterfly damperCRS-MB – Mounting bridge for central screw fixingCRS-PB – Insulated side entry plenum box

CRS-T

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)CRS-T -D -PB

125 42374 41380 41387 3 4 6 7 29 65

160 42375 41381 41388 3 4 5 10 22 40

200 42376 41382 41389 4 5 6 9 17 26

250 42377 41383 41390 5 6 7 12 17 30

315 42378 41384 41391 4 5 7 8 14 23

355 42379 41385 41392 5 7 9 10 16 28

400 42380 41386 41393 7 8 11 12 18 32

m3/h 75 100 150 200 250 300 400 500 600 800 20-25 30 35-40

l/s 21 28 42 56 69 83 111 139 167 222 dB (A)

Damper

Plenum box


47|

VVKNSwirl ceiling diffuser used for supply and return air with fixed blades

FunctionVVKN is a square ceiling swirl diffuser with fixed air guiding blades. Ideal to use in shopping halls, receptions or offices. The diffuser can be used for supply or return air. The height of the room can be up to 4 meters. Swirled stream quickly looses speed and temperature thanks to high in-duction therefore it can be used for high air exchanges and temperature can vary from -12K to +10K. The front plate is installed to a plenum box with a screw.

DesignThe diffuser is manufactured from galvanized steel powder painted to RAL9010 white. In the centre of the diffuser is pre-punched hole for screw fixing. Screw with white decorative cap is provided together with self adhesive seal. Seal must be glued by the customer at the installa-tion site.

MountingThe diffuser is installed into a plenum box with a screw in the front face or inserted into the T-bar ceiling.

Ordering example codeVVKN-B-S-300B= Face typeS= Square face300 = Size 300 x 300

AccessoryVVK-300Non-insulated plenum box with inlet damper for supply air with square face size of 300 x 300

Dimensions

VVKN-B-S

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)VVKN-B-S VVK

300 40617 41073 2 2 2 5 19 34

400 40618 41505 2 2 2 9 19 32

500 40619 41506 2 2 3 4 22 36

600 40620 41076 2 2 3 10 16 33

625 40621 41458 2 2 3 10 16 33

m3/h 100 150 200 275 350 450 650 20-25 30 35-40

l/s 28 42 56 76 97 125 181 dB (A)

Size X (mm) ØD (mm) K (mm) H1 (mm)300 296 158 290 270400 396 198 390 280500 496 198 490 290600 596 248 590 340625 621 248 615 340


48 |

Dimensions

VVKRSwirl ceiling diffuser used for supply and return air with adjustable blades

FunctionVVKR is a square ceiling swirl diffuser with manually adjustable air guiding blades which enables to adapt the airflow pattern to individual requirements of the room at any time. Ideal to use in shopping halls, receptions or offices. The diffuser can be used for supply or return air. The height of the room can be up to 4 meters. Swirled stream quickly looses speed and temperature thanks to high induction therefore it can be used for high air exchanges and temperature can vary from -10K to +10K. The front plate is installed to a plenum box with a screw.

DesignThe diffuser is manufactured from galvanized steel powder painted to RAL9010 white. Blades are from black plastic. In the centre of the dif-fuser is pre-punched hole for screw fixing. Screw with white decorative cap is provided together with self adhesive seal. Seal must be glued by the customer at the installation site.

MountingThe diffuser is installed into a plenum box with a screw in the front face or inserted into the T-bar ceiling.

Ordering example codeVVKR-A-S-300A= Face typeS= Square face300 = Size 300 x 300

AccessoryVVK-300Non-insulated plenum box with inlet damper for supply air with square face size of 300 x 300

VVKR

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)VVKR-A-S VVK

300-8 40640 41073 2 2 2 20 35 55

400-16 40641 41505 2 2 2 13 19 28

500-24 40643 41506 3 3 3 11 22 28

600-32 40646 41076 2 2 2 10 19 28

625-32 40650 41458 2 2 2 10 19 28

m3/h 150 200 250 300 350 400 475 20-25 30 35-40

l/s 42 56 69 83 97 111 132 dB (A)

Size X (mm) ØD (mm) K (mm) H1 (mm)300 296 158 290 270400 396 198 390 280500 496 198 490 290600 596 248 590 340625 621 248 615 340


49|

Dimensions

TSFPerforated face return air diffusers

FunctionTSF is a perforated exhaust air diffuser de-signed for ceiling assembly. Plenum box PER or iris damper SPI should be used to regulate the air flow.

DesignTSF is available in 7 different sizes 100-400. Size 250-400 do not need adapter plates for installation in suspended ceiling, 600 x 600.TSF consists of perforated front plate and a diffuser box, manufactured of sheet metal. The diffuser box has a connection sleeve fitted with a rubber seal. TSF is painted with a white powder coated finish (RAL 9010-80). The front plate is removable to easy access to the duct.

MountingWhen mounting, pull the perforated front straight out. Connect the diffuser box with blind rivets and then remount the front. If the diffuser is fitted to a PER plenum box there must be a straight length, 4 times the duct diameter in front of the PER plenum box. A Sinus P600 is a replacement for a false ceiling tile, not in ceiling 625x625, when installing TSF 100-200. TSF 250- 400 can be installed directly. The hole dimension is according to the measuring table.

Selection TableTable below shows the general product per-formance for more details please see selec-tion software or contact your local systemair office.

The ordering code is TSF-125 and the acces-sories are Plenum box PER, Ceiling plate Sinus-P 600 for installation in suspended ceiling of standard colour white (RAL 9010-80), Sinus-P 600-125/160 (also suitable for 100), Sinus-P 600-200 and Sinus-P 625.

L hole

TSF A B C D E F G H J ØK D1 D2 dim

100 - - - - - - - 7,4 355 99 - - 328

125+PER 100-125 320 250 150 47 185 167 242 7,4 355 124 99 127 328

160+PER 125-160 360 250 160 47 210 172 252 7,4 355 159 124 162 328

200+PER 160-200 450 300 195 47 280 197 295 7,4 455 199 159 202 428

250+PER 200-250 500 350 250 54 305 224 349 7,4 595 249 199 252 563

315+PER 259-315 565 450 300 54 330 249 399 7,4 595 314 249 317 563

400+PER 315-400 620 550 400 54 360 319 499 7,4 595 399 314 402 563

TSF

SizeArt No

Air flow range (m3/h, l/s) and ΔPt pressure (Pa)TSF PER

100 7529 21 48 101

125 7530 6522 20 42 97

160 7531 6523 15 37 72

200 7532 6524 15 47 67

250 7533 6525 18 27 57

315 7534 6526 11 23 54

400 7535 6527 14 32 52

m3/h 150 225 325 500 875 1050 1525 2325 2925

l/s 42 62 90 139 243 292 424 646 812



Not Available

50 |

TSOPerforated diffuser for T-Bar ceiling with top entry plenum

DimensionsFunctionThe TSO is a supply and exhaust air diffuser designed for ceiling assembly. The TSO has a perforated front plate and a connection sleeve fitted with a rubber seal tested for airtight-ness. The TSO has high induction which allows a maximum air temperature difference of DT 10 K. The distribution pattern can be altered with the SSO shielding accessory to one, two or three-way distribution. The distribution unit is adjustable.

DesignThe TSO is manufactured from galvanized sheet metal with a white powder-coated fin-ish (RAL 9010-80) and is available in the fol-lowing sizes: Ø100, Ø125, Ø160, Ø200, Ø250, Ø315 and Ø400.

How to use for exhaust airThis device can also be used for exhaust air application.

MountingThe diffuser is installed directly onto the spiral duct and fixed with pop rivets. If the diffuser is fitted to a PER plenum box, there must be a straight length, 4 times the duct’s diameter, in front of the PER plenum box.


Ordering code The ordering code is TSO-160 Size and the accessories are Ceiling plate (600x600) TPP, Plenum box PER with removable damper and test points and SSO shielding.

L hole

TSO A B C D E F G H J ØK D1 D2 dim

100 - - - - - - - 33-53 264 99 - - 107

125+PER 100-125 320 250 150 47 185 128 203 33-53 264 124 99 127 132

160+PER 125-160 360 250 160 47 210 133 213 33-53 264 159 124 162 167

200+PER 160-200 450 300 195 47 280 158 256 33-53 364 199 159 202 207

250+PER 200-250 500 350 250 54 305 185 310 33-53 595 249 199 252 257

315+PER 250-315 565 450 300 54 330 210 360 33-53 595 314 249 317 322

400+PER 315-400 620 550 400 54 360 280 480 33-53 595 399 314 402 407

A ØCTPP-600-125 595 144TPP-600-160 595 176

TPP-600-200 595 208

TPP-625-125 623 144

TPP-625-160 623 176

TPP-625-200 623 208

TPP SSO

TSO

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)TSO TPP-600 TPP-625 PER SSO

100 6469 6141 2 2 3 11 24 41

125 6094 6260 1999 6522 6141 1 2 3 6 22 52

160 6095 6227 2067 6523 6141 2 3 4 11 26 56

200 6096 6228 2068 6524 6142 2 3 5 13 31 67

250 6097 6525 6143 3 3 4 15 18 37

315 6098 6526 6143 2 3 5 10 22 58

400 6099 6527 6143 3 4 4 12 34 54

m3/h 80 120 160 250 375 400 600 1000 1250 20-25 30 35-40

l/s 22 33 44 69 104 111 167 278 347 dB (A)


Not Available

51|

Sinus-ANozzle diffuser with curved front face.

FunctionThe Sinus-A consists of a front plate with a number of nozzles (size 57 mm) together with a main body plus connection sleeve fitted with a rubber seal tested for air-tightness. The front plate is easy to assemble without the use of tools. The front plate hangs from a chain during cleaning and servicing. Maximum temperature difference for cooled air: ΔT 12 K.

MountingThe Sinus-A should be fitted onto a PER plenum box, or connected directly onto a duct (Ø125-315) with pop rivets. When installed in a rigid ceiling structure, the sides and the top of the unit’s main body can be fitted to the structure.

AccessoriesAdapter plate for fitted in suspended ceil-ings, 600x600 and 625x625. Standard colour white (RAL 9010-80). The Sinus-A in the 250 and 315 sizes do not need adapter plates for 600x600 grids.

Plenum box PER with removable damper and test points.

The ordering code is Sinus-A-125-L.

Dimensions

A B C D E F G H J ØK D1 D2 L hole

Sinus-A-125+PER 100-125 320 250 150 47 185 169 244 41 350 123 98 127 326 x 326Sinus-A-160+PER 125-160 360 250 160 47 210 174 254 41 350 158 123 162 326 x 326Sinus-A-200+PER 160-200 450 300 195 47 280 192 289 46 450 198 158 202 426 x 426Sinus-A-250+PER 200-250 500 350 250 54 305 219 344 50 595 248 198 252 561 x 561Sinus-A-315+PER 250-315 565 450 300 54 330 244 394 50 595 313 248 317 561 x 561

Sinus-A-Small Nozzle

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Sinus-A PER Sinus-P-600 Sinus-P-625

125 1971 6522 1979 1981 2 2 3 5 17 23

160 1972 6523 1979 1981 2 3 3 6 17 27

200 1973 6524 1980 1982 2 3 4 6 16 23

250 1974 6525 1983 2 3 4 6 11 25

315 1975 6526 1983 3 4 5 6 15 20

m3/h 90 120 150 180 230 270 330 505 630 20-25 30 35-40

l/s 25 33 42 50 64 75 92 140 175 dB (A)

Sinus-A-Large Nozzle

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Sinus-A PER Sinus-P-600 Sinus-P-625

125 1951 6522 1979 1981 2 3 4 6 17 29

160 1952 6523 1979 1981 3 4 6 7 17 36

200 1953 6524 1980 1982 3 4 6 5 16 29

250 1954 6525 1983 5 6 8 11 16 26

315 1955 6526 1983 5 6 7 9 14 23

m3/h 80 120 160 235 335 385 460 585 20-25 30 35-40

l/s 22 33 44 65 93 107 128 162 dB (A)


Not Available

52 |

Sinus-GNozzle diffuser designed for plaster or flush mounted ceiling

FunctionThe Sinus G will be used for flush mounting in false ceiling. It is possible to remove the diffuser face to access the duct system. The front plate is attached with a chain to the main body for easy cleaning and servicing. By pulling the front plate one step out from the main body an air gap is created around the diffuser. Maximum temperature difference for cooled air ΔT 12 K.

MountingBy opening a square hole in the ceiling slab the diffuser back box can be completely re-cessed into the opening onto the metal flange. The flange, which is part of the back box is used to cover the edges of the opening. The diffuser is fastened to the duct or plenum box PER from the inside of the spigot by screws or pop rivets. The front plate with the nozzles is easily detached from the back box by gently inserting a screwdriver in openings on the side after which the two parts are bent apart. In the same fashion a small extra air gap can be created around the diffuser.

Ordering codeThe ordering code is Sinus-G and the acces-sory is Plenum box PER.

Dimensions A ØB C D ESinus-G-125-L 326 123 355 7.4 7.5Sinus-G-160-L 326 158 355 7.4 7.5Sinus-G-200-L 426 198 455 7.4 7.5Sinus-G-250-L 561 248 595 7.4 7.5Sinus-G-315-L 561 313 595 7.4 7.5

Sinus-G

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Sinus-G PER

125 7006 6522 1 2 2 22 44 66

160 7007 6523 2 2 3 10 21 50

200 7009 6524 1 2 3 7 25 44

250 7013 6525 2 3 4 10 22 41

315 7014 6526 3 4 5 13 25 39

m3/h 90 120 150 225 300 425 550 20-25 30 35-40

l/s 25 33 42 62 83 118 153 dB (A)


53|

Sinus-FSquare multi nozzle ceiling diffuser For t-bar ceiling

DimensionsFunctionExterior dimension 600 x 600 and 625 x 625. It is possible to remove the diffuser face to access the duct system. The front plate is at-tached with a chain to the main body for easy cleaning and service. Pull the front plate one step out from the main body to create an air gap around the diffuser. Max temp. diff. for cooled air ΔT 12 K.

MountingThe diffuser is specially designed for flush mounting in false ceiling and directly suspend-ed in the T-bar framework carrying structure, and then fixed with the help of the connecting duct or plenum box PER.

Ordering code The ordering code is Sinus - F - L and the ac-cessory is PER plenum box.

A ØB C

Sinus-F-125-L 595 123 40Sinus-F-160-L 595 158 40Sinus-F-200-L 595 198 40Sinus-F-250-L 595 248 40Sinus-F-315-L 595 313 40


Mid-frequency band, Hz Closed gap 63 125 250 500 1k 2k 4k 8k

Sinus-F-125-L 25 17 14 15 18 17 12 16Sinus-F-160-L 14 17 11 10 16 15 11 14Sinus-F-200-L 20 15 12 14 18 15 13 13Sinus-F-250-L 15 13 11 16 15 11 13 12Sinus-F-315-L 24 11 12 14 11 10 13 11

20 mm open gap Sound power level, Lw

Lw(dB) = LpA + Kok (LpA = diagram Kok = table) correction factor Kok

Mid-frequency band, Hz Open gap 63 125 250 500 1k 2k 4k 8k

Sinus-F-125-L 12 7 4 2 -4 -11 -13 -9 Sinus-F-160-L 11 4 4 2 -1 -9 -17 -14 Sinus-F-200-L 10 7 5 3 -2 -11 -18 -14 Sinus-F-250-L 17 9 4 -2 -2 -7 -15 -14 Sinus-F-315-L 11 12 3 0 -2 -9 -13 -12

Closed gap

Sinus-F-125-L 13 7 4 3 -5 -12 -15 -11 Sinus-F-160-L 11 6 5 2 -2 -10 -17 -15 Sinus-F-200-L 5 6 4 4 -3 -12 -19 -17 Sinus-F-250-L 16 10 5 -1 -2 -8 -14 -15 Sinus-F-315-L 12 11 4 0 -1 -10 -18 -17

The diagram showsAir volume (l/s and m3/h), total pressure (Pa), throw (l0,2) and sound pressure level [dB(A)].

Sound attenuation ΔL The air terminal device’s self-damping (dB), including its aperture damping, can be read off from the tables below. Measurements with PER plenum box

Sinus-F

Size

Art No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Sinus-FPER

600x600 625x625

125 7030 7015 6522 <1 <1 1 18 36 63

160 7031 7016 6523 1 1 1 16 30 42

200 7032 7017 6524 1 2 2 10 18 33

250 7033 7018 6525 1 2 3 15 28 44

315 7034 7019 6526 2 3 3 15 24 34

m3/h 75 100 135 165 225 300 375 450 20-25 30 35-40

l/s 21 28 38 46 62 83 104 125 dB (A)


54 |

KonikaCircular fixed cones ceiling diffuser

FunctionThe Konika is a supply and exhaust air diffuser for ceiling assembly. The Konika is suitable for offices, shops or similar premises. The Konika can either be connected directly to a circular duct or to the PER plenum box. The Konika is suitable both for cool and warm air. The Konika has high induction which allows a maximum air temperature difference of ΔT 8 K.

DesignThe Konika is manufactured from steel with a white powder-coated finish (RAL 9010) and is available in the following sizes: Ø160, Ø200, Ø250 and Ø315, incl. mounting bar. Konika-AN is manufactured from aluminium with natural anodized finish and is available in the follow-ing sizes: Ø160, Ø200, Ø250, Ø315, Ø355, Ø400, incl. T bar ceiling and damper.

How to use for exhaust airThis device can be used for exhaust air.

MountingCorrect adjustment requires a length of straight duct, 4 times the duct diameter in front of the PER plenum box. Between the PER plenum box and the Konika diffuser there need to be a length of straight duct, 1 times the duct diameter.


Ordering codeThe ordering code is Konika-160 with dimen-sion and accessory is Plenum box PER with removable damper and test points.

Dimensions

ØA ØB C ØNKonika - 160 248 190 36 158Konika - 200 298 230 36 198Konika - 250 363 280 36 248Konika - 315 448 350 36 313

Konika

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Konika PER

160 6545 6523 2 3 4 9 28 47

200 6546 6524 2 3 5 9 18 31

250 6547 6525 2 3 4 2 19 28

315 6548 6526 3 4 5 5 10 22

m3/h 150 225 300 400 490 715 20-25 30 35-40

l/s 42 62 83 111 136 199 dB (A)

ØD1 ØD2 C E F GPER 125-160 124 162 360 250 47 210PER 160-200 159 202 450 300 47 280PER 200-250 199 252 500 350 47 305PER 250-315 249 317 565 450 47 330

Round ceiling diffusers

55|

Konika-ACircular adjustable cone ceiling diffuser

FunctionKonika-A multi cone diffuser for ceiling as-sembly. The diffuser consist of an external cone and an adjustable double center cone. The double cone can be adjusted for changing of the distribution pattern from horizontal to vertical.

DesignThe diffuser is manufactured from steel with white powder-coated finish (RAL 9010) and is available in 6 sizes 160-500. The cone diffuser can also be manufactured in aluminium. When dismantling the inner double cone the duct system becomes accessible for cleaning.

MountingWhen mounting the cone diffuser, dismantle the inner double cone by pressing and turn-ing it. Pull the cone straight out. Attach the external cone with pop rivets and remount the inner cone in the position that provides the desired distribution pattern (external position for horizontal distribution pattern and inner positon for vertical).

Dimensions

ØA ØB C ØD E F G H I K L ØMKonika-A- 160 279 323 12 158 22 85 46 35 155 235 210 125Konika-A- 200 375 428 10 198 26 101 55 51 193 290 280 160Konika-A- 250 467 538 14 248 33 117 68 67 235 360 305 200Konika-A- 315 557 635 10 313 42 135 80 85 280 330 330 250Konika-A- 400 740 856 14 398 49 166 92 116 360 360 360 315Konika-A- 500 924 1081 17 498 72 199 116 149 - - - -

Konika-A (with Horizontal throw setting)

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Konika-A PER

160 5417 6523 4 6 7 10 18 26

200 5418 6524 5 6 8 6 17 28

250 5419 6525 7 9 12 10 18 26

315 5420 6526 7 9 11 9 14 25

400 5421 6527 10 13 16 7 15 24

500 6549 B505 12 16 21 10 16 22

m3/h 240 300 360 510 660 835 1010 1385 1885 2385 3035 3685 20-25 30 35-40

l/s 67 83 100 142 183 232 281 385 524 662 843 1024 dB (A)

Konika-A (with Vertical throw setting)

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)Konika-A PER

160 5417 6523 8 11 14 10 18 26

200 5418 6524 8 13 17 6 17 28

250 5419 6525 12 15 19 10 18 26

315 5420 6526 12 15 18 9 14 25

400 5421 6527 15 20 26 7 15 24

500 6549 B505 20 25 30 10 16 22

m3/h 240 300 360 510 660 835 1010 1385 1885 2385 3035 3685 20-25 30 35-40

l/s 67 83 100 142 183 232 281 385 524 662 843 1024 dB (A)



56 |

CRSCircular swirl diffuser with fixed blades

DimensionsFunctionCRS is a round ceiling swirl diffuser with fixed air guiding blades and can be used for supply or return air. Swirled stream quickly looses speed and temperature thanks to high induction therefore it can be used for high air exchanges and temperature can vary from -10K to +10K.The rotational turbulence produced, cause a rapid mixing of temperatures and considerably shorter jet throws. CRS swirl diffuser is also ideal to use for VAV systems, allowing variations in air flow rate from 100% to 25% without risk of detaching the jet from the ceiling.

DesignThe diffuser is manufactured from steel sheet powder painted to RAL9010 white.

MountingThe diffuser can be installed with a mounting bridge, with screws to the plenum box or directly to duct.

Ordering codeCRS-125(Size)

AccessoriesCRS-D – Butterfly damperCRS-MB – Mounting bridge for central screw

fixingCRS-PB–Non insulated side entry plenum box

Size ØA ØB D1 E125 123 228 98 153160 158 253 123 159200 198 303 178 151250 248 353 198 167315 313 418 248 176355 353 458 277 183400 398 503 398 183

CRS

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)CRS -MB -D -PB

125 41007 41373 41380 41387 3 4 6 7 29 65

160 41008 41374 41381 41388 3 4 5 10 22 40

200 41009 41375 41382 41389 4 5 6 9 17 26

250 41010 41376 41383 41390 5 6 7 12 17 30

315 41011 41377 41384 41391 4 5 7 8 14 23

355 42439 41378 41385 41392 5 7 9 10 16 28

400 41012 41379 41386 41393 7 8 11 12 18 32

m3/h 75 100 150 200 250 300 400 500 600 800 20-25 30 35-40

l/s 21 28 42 56 69 83 111 139 167 222 dB (A)

ØD1

E

Mounting bridgePlenum box

Reduction

Damper


57|

Above throw data are based on installation height of 3m

CRSPHigh capacity swirl diffuser with fixed deflectors

DescriptionCRSP swirl diffuser is specifically constructed to achieve larger air volume capacities with high induction levels. Diffuser is manufactured from PP and has as standard white colour. CRSP has as standard central screw fixing system for a M6 or M8 mounting screw. The diffuser has fixed deflectors to make it an ideal setting for Cooling and heating for ceiling installations of 2.7 to 3.5 meter and above.

AccessoriesCRSP-MB, Mounting BridgeCRSP-RED, One-step reduction unitCRSP-PB, Non insulated side entry plenum box

Table of DimensionsH

ØF

ØE

ØD

Dimensions

CRSP

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)CRSP -MB -PB -RED

125 34179 34203 34187 34195 1 2 2 19 33 61

160 34180 34204 34188 34196 2 2 2 23 39 57

180 34181 34205 34189 34197 2 2 3 27 44 64

200 34182 34206 34190 34198 2 2 3 25 42 60

250 34183 34207 34191 34199 3 3 4 22 39 61

315 34184 34208 34192 34200 3 4 4 16 27 56

400 34185 34209 34193 34201 4 5 6 15 40 70

500 34186 34210 34194 34202 5 6 7 17 42 75

m3/h 60 80 110 140 170 220 270 360 450 650 900 1100 1300 20-25 30 35-40

l/s 17 22 31 39 47 61 75 100 125 181 250 305 360 dB (A)

Size ØD ØD1 ØE ØF G H125 123 98 165 190 153 65160 158 123 225 250 159 85180 178 158 255 280 159 95200 198 158 275 300 151 105250 248 198 350 380 167 130315 313 248 450 480 176 170400 398 313 585 610 183 210500 498 398 735 760 NA 260

Mounting bridgePlenum box

Reduction ØD1

G


58 |

TSTCircular ceiling diffuser with adjustable front plate

DimensionsFunctionThe TST is a circular supply diffuser for ceiling installation. The distribution pattern can be altered and the gap width is adjustable. The two-part diffuser unit can be adjusted to pro-vide the desired throw. A shielding device is included which can be used to alter the distri-bution pattern to a directional (180°) pattern.

DesignThe TST is manufactured from galvanized sheet metal, with a white powder-coated finish (RAL 9010-80). The TST is available with the following diameters: Ø100, Ø125, Ø160, Ø200, Ø250 and Ø315.


Mounting The diffuser is installed directly onto the spiral duct and fixed with pop rivets. If the diffuser is fitted to a PER plenum box, there must be a straight length, 4 times the duct’s diameter, in front of the PER plenum box.


Ordering codeThe ordering code is TST-125 with sizes and the accessories are Ceiling plate (600x600) TPP and Plenum box PER with removable damper and test points. The ordering code is TSO-160 Size and the accessories are Ceiling plate (600x600) TPP, Plenum box PER with removable damper and test points and SSO shielding.

ØL holeTST A B C D E F G H R1 ØJ ØK D1 D2 dim

100 - 30-50 80 199 99 - - 107

125 + PER 100-125 320 250 150 47 185 116 191 30-50 105 249 124 99 127 132

160 + PER 125-160 360 250 160 47 210 121 201 30-50 105 249 159 124 162 167

200 + PER 160-200 450 300 195 47 139 139 237 30-50 127 314 199 159 202 207

250 + PER 200-250 500 350 250 54 305 183 308 30-50 169,5 399 249 199 252 257

315 + PER 250-315 565 450 300 54 330 208 358 30-50 169,5 399 314 249 317 322

A ØC

TPP - 600 - 125 595 144TPP - 600 - 125 595 176TPP - 600 - 125 595 208TPP - 600 - 125 623 144TPP - 600 - 125 623 176TPP - 600 - 125 623 208

TPP

TST

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)TST TPP-600 TPP-625 PER

100 6105 2 3 4 6 23 46

125 6106 6260 1999 6522 3 4 5 21 38 55

160 6107 6227 2067 6523 4 5 7 27 49 84

200 6108 6228 2068 6524 3 4 6 8 39 69

250 6109 6525 3 5 6 11 42 56

315 6110 6526 5 6 8 31 48 87

m3/h 120 180 240 315 390 540 640 890 20-25 30 35-40

l/s 33 50 67 88 108 150 178 247 dB (A)


Not Available

59|

TPP

TSKCircular ceiling diffuser with adjustable perforated front plate

FunctionThe TSK is a circular perforated supply diffuser for ceiling installation. The two-part diffuser unit can be adjusted to provide the desired throw. TSK is a perforated version of TST. The gap width is adjustable. TSK is a perforated version of TST. The gap width is adjustable.

DesignThe TSK is manufactured from galvanized sheet metal, with a white powder-coated finish (RAL 9010-80). The TSK is available with the following diameters: Ø100, Ø125, Ø160, Ø200, Ø250 and Ø315.




Ordering code The ordering code is TSO-160 Size and the ac-cessories are Ceiling plate (600x600) TPP, Ple-num box PER with removable damper and test points and SSO shielding. The ordering code is TSK-125 with sizes and the accessories are Ceiling plate (600x600) TPP and Plenum box PER with removable damper and test points.

Dimensions

A ØC

TPP - 600 - 125 595 144TPP - 600 - 125 595 176TPP - 600 - 125 595 208TPP - 600 - 125 623 144TPP - 600 - 125 623 176TPP - 600 - 125 623 208

ØL holeTSK A B C D E F G H R1 ØJ ØK D1 D2 dim

100 - 30-50 80 199 99 - - 107

125 + PER 100-125 320 250 150 47 185 116 191 30-50 105 249 124 99 127 132

160 + PER 125-160 360 250 160 47 210 121 201 30-50 105 249 159 124 162 167

200 + PER 160-200 450 300 195 47 139 139 237 30-50 127 314 199 159 202 207

250 + PER 200-250 500 350 250 54 305 183 308 30-50 169,5 399 249 199 252 257

315 + PER 250-315 565 450 300 54 330 208 358 30-50 169,5 399 314 249 317 322

TSK

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)TSK TPP-600 TPP-625 PER

100 6720 2 2 21 38

125 6721 6260 1999 6522 2 3 4 6 20 38

160 6722 6227 2067 6523 2 4 5 1 26 45

200 6723 6228 2068 6524 3 4 6 11 23 39

250 6724 6525 3 5 6 4 26 38

315 6725 6526 3 6 7 7 25 35

m3/h 120 160 235 310 335 460 610 760 910 20-25 30 35-40

l/s 33 44 65 86 93 128 169 211 253 dB (A)


Not Available

60 |

TSRCircular ceiling diffuser with adjustable front plate for apparent installations

Systemair TSR ceiling diffuser complete with plenum box for visible installation. The plenum box is fitted with a removable damper, test points and fibre-free sound insulation.

FunctionThe TSR is a complete circular supply diffuser, with an adjustable and sound-insulated dif-fuser unit combined with a plenum box. The plenum box has a damper and test points, and is internally lined with fibre-free sound-insula-tion material. The TSR is suitable for cooled air with a maximum ∆T of 12 K.

DesignThe TSR is manufactured from galvanized sheet metal with a white powder-coated finish (RAL 9010-80) and is available in the following diameters: Ø100, Ø125, Ø160, Ø200 and Ø250.

How to use for exhaust airThis device can be used for exhaust air. MountingThe diffuser is fixed securely by screwing up into the ceiling from the inside of the unit. The front plate can be removed by pulling it straight out. The sound-absorbing material is cut out of the diffuser’s centre to make room for the screws.

ØA B C ØD TSR 100 250 170 35 99 TSR 125 250 200 37 124 TSR 160 315 250 45 159 TSR 200 400 285 43 199 TSR 250 400 330 40 249


63 125 250 500 1k 2k 4k 8kTSR 100 23 17 13 16 7 6 8 10TSR 125 21 16 9 15 10 6 8 11TSR 160 21 15 10 15 9 6 7 10TSR 200 17 12 13 15 8 6 8 10TSR 250 16 12 11 14 10 7 7 9

Sound power level, Lw Lw(dB) = LpA + Kok (LpA = diagram Kok = table) correction factor Kok

Mid-frequency band, Hz 63 125 250 500 1k 2k 4k 8kTSR 100 14 1 6 -2 -3 -3 -14 -21TSR 125 15 1 6 -3 -3 -3 -13 -19TSR 160 16 4 6 -1 -2 -5 -15 -24TSR 200 15 7 4 -1 -1 -5 -18 -24TSR 250 17 8 7 0 -2 -5 -16 -24Tolerance ±6 ±3 ±2 ±2 ±2 ±3 ±3 ±4

TSR


100 6100 1 1 2 11 38 63

125 6101 1 2 2 12 28 51

160 6102 1 2 3 13 29 44

200 6103 2 2 3 13 25 43

250 6104 2 3 4 11 26 49

m3/h 80 120 160 220 280 380 530 20-25 30 35-40

l/s 22 33 44 61 78 106 147 dB (A)

Dimensions


61|

TSP Circular ceiling diffuser with adjustable front plate

for apparent installations

DimensionsFunction This device can be used for exhaust air. A complete circular perforated supply diffuser, with an adjustable diffuser unit combined with a plenum box that has a damper and test points, and is internally lined with fibre-free sound-insulation material. The TSP is suitable for cooled air with a maximum ΔT of 12 K.

DesignThe TSP is manufactured from sheet metal with a white powder-coated finish (RAL 9010-80) and is available in the following diameters: Ø100, Ø125, Ø160, Ø200 and Ø250.

MountingThe diffuser is fixed securely by screwing up into the ceiling from the inside of the unit. Re-move the front plate by pulling it straight out. The sound-absorbing material is cut out of the diffuser’s centre to make room for the screws. TSP has a M8 blind rivet for suspension.


ØA ØB C ØD

TSP 100 250 170 35 99TSP 125 250 200 37 124TSP 160 315 250 45 159TSP 200 400 285 43 199TSP 250 400 330 40 249

The diagram showsAir volume (l/s and m3/h), total pressure (Pa), throw (l0,2) and sound pressure level [dB(A)] with open and closed damper with an air gap of 30 mm.


63 125 250 500 1k 2k 4k 8kTSP 100 23 16 17 20 17 12 12 10TSP 125 22 16 11 18 14 11 8 9TSP 160 22 10 12 17 11 9 9 12TSP 200 21 9 11 13 12 9 8 11TSP 250 18 10 14 10 11 9 9 11

Sound power level, Lw

Lw(dB) = LpA + Kok (LpA = diagram Kok = table) correction factor Kok

Mid-frequency band, Hz 63 125 250 500 1k 2k 4k 8k

TSP 100 8 3 8 1 -4 -8 -18 -23

TSP 125 7 5 8 0 -4 -5 -15 -22TSP 160 12 7 7 -2 -2 -6 -17 -23TSP 200 17 8 4 -1 -2 -5 -17 -19TSP 250 15 9 6 1 -2 -9 -19 -25Tolerance ±6 ±3 ±2 ±2 ±2 ±3 ±3 ±4

TSP


100 6726 1 1 2 7 27 49

125 6727 1 2 2 9 19 38

160 6728 1 2 3 9 26 48

200 6729 1 2 3 4 15 30

250 6730 2 4 5 8 24 40

m3/h 80 120 160 235 325 500 675 20-25 30 35-40

l/s 22 33 44 65 90 139 188 dB (A)


62 |

Sinus-CCircular nozzle ceiling diffuser complete with side entry plenum box for visible installation

DimensionsFunctionThe Sinus-C ceiling diffuser is suitable for vis-ible connection and can be connected directly to the duct using the connection sleeve fitted with a rubber seal tested for air tightness. The side gap is adjustable between 0 and 20 mm to enable increased air supply. The Sinus-C consists of a front plate with nozzles (size 57 mm) and a sound-insulated plenum box and damper. Max. temperature difference:ΔT 12 K.

MountingThe diffuser is fixed securely by screwing it up into the ceiling from the inside of the unit. The front plate can be removed by pulling it straight out. The sound absorbing material is cut out of the diffuser’s centre to make room for the screws. The diffuser has a M8 blind rivet for suspension.

Ordering codeThe ordering code is Sinus - C - 125 of Type C with dimensions.

The diagram shows Air volume (l/s and m3/h), total pressure (Pa), throw (l0,2) and sound pressure level [dB(A)].

Sound attenuation ΔL The air terminal device’s self-damping (dB), including its aperture damping, can be read off from the tables below.

ØA B C ØDSinus-C-100 314 170 35 99Sinus-C-125 399 200 37 124Sinus-C-160 399 250 45 159Sinus-C-200 599 285 42 199Sinus-C-250 599 330 40 249Sinus-C-315 799 420 53 314

Sound power level, LwMid-frequency band, Hz

Open gap 63 125 250 500 1k 2k 4k 8kSinus-C-100 9 2 9 2 -5 -12 -18 -21Sinus-C-125 11 4 10 0 -8 -13 -18 -22Sinus-C-160 12 6 10 -2 -7 -12 -16 -21Sinus-C-200 14 9 8 2 -6 -15 -19 -20Sinus-C-250 12 11 9 1 -6 -14 -19 -21Sinus-C-315 10 15 6 1 -9 -16 -19 -13Closed gapSinus-C-100 7 2 9 2 -6 -13 -19 -22Sinus-C-125 10 4 10 0 -9 -15 -19 -21Sinus-C-160 12 6 10 -1 -7 -14 -19 -23Sinus-C-200 13 10 8 2 -6 -15 -20 -19Sinus-C-250 14 11 8 1 -5 -15 -18 -22Sinus-C-315 8 14 6 2 -7 -17 -20 -13Tolerance ±6 ±2 ±2 ±2 ±3 ±5 ±6 ±6 Lw(dB) = LpA + Kok (LpA = diagram Kok= table) correction factor Kok


Open gap 63 125 250 500 1k 2k 4k 8kSinus-C-100 22 17 12 11 6 5 6 8Sinus-C-125 22 16 9 9 7 5 6 7Sinus-C-160 16 13 7 9 6 4 5 7Sinus-C-200 21 11 7 8 7 5 6 7Sinus-C-250 15 9 7 9 6 5 6 7Sinus-C-315 16 8 11 9 5 6 6 9ClosedgapSinus-C-100 23 16 12 13 7 6 7 9Sinus-C-125 21 16 9 10 8 7 6 8Sinus-C-160 18 14 9 12 8 6 6 8Sinus-C-200 16 10 9 9 7 6 6 8Sinus-C-250 16 10 9 10 7 6 7 9Sinus-C-315 17 9 11 10 6 7 6 1020 mm open gap

Sinus-C


100 6657 1 1 2 4 16 29

125 6658 1 1 1 6 14 34

160 6659 3 4 5 4 16 28

200 6660 1 2 3 3 8 23

250 6661 1 2 5 15

315 7302 2 3 4 8 13 21

m3/h 80 120 160 250 260 350 575 800 1025 20-25 30 35-40

l/s 22 33 44 69 72 97 160 222 285 dB (A)


63|

FunctionThe Sinus-C ceiling diffuser is suitable for vis-ible connection and can be connected directly to the duct using the connection sleeve fitted with a rubber seal tested for air tightness. The side gap is adjustable between 0 and 20 mm to enable increased air supply. The Sinus-C consists of a front plate with nozzles (size 57 mm) and a sound-insulated plenum box and damper. Max. temperature difference:ΔT 12 K.

MountingThe Sinus C has to be connected directly ontoa duct with diameter 100-315 mm with pop rivets or screws.

Sinus-C/TCircular nozzle ceiling diffuser

complete with top entry plenum box for visible installation

Dimensions ØA B ØDSinus-C/T-100 314 170 99Sinus-C/T-125 399 200 124Sinus-C/T-160 399 250 159Sinus-C/T-200 599 285 199Sinus-C/T-250 599 330 249Sinus-C/T-315 800 420 314

Sound attenuation, ΔL (dB)Mid-frequency band, Hz

open gap 63 125 250 500 1k 2k 4k 8kSinus-C/T-100 9 2 8 -1 -8 -11 -8 -8Sinus-C/T-125 10 3 7 1 -7 -12 -11 -8Sinus-C/T-160 9 5 8 3 -10 -18 -17 -12Sinus-C/T-200 6 7 6 3 -11 -19 -14 -11Sinus-C/T-250 7 10 5 3 -11 -19 -16 -12Sinus-C/T-315 6 13 6 1 -11 -18 -16 -10

closed gapSinus-C/T-100 5 4 10 -1 -11 -16 -12 -12Sinus-C/T-125 9 6 8 1 -9 -15 -13 -10Sinus-C/T-160 11 5 9 3 -10 -19 -18 -15Sinus-C/T-200 6 10 7 3 -11 -20 -16 -14

Sinus-C/T


100 7424 1 1 2 9 33 56

125 7425 1 1 1 5 17 45

160 7426 1 1 2 3 15 29

200 7427 1 2 2 5 18 38

250 7428 2 2 11 26

315 7430 2 3 3 9 19 29

m3/h 80 120 160 260 260 360 535 735 935 20-25 30 35-40

l/s 22 33 44 72 72 100 149 204 260 dB (A)


64 |

The damper is fixed at the duct connection and can be adjusted from below.

IKDCircular ceiling diffuser with dual adjustable cones for high installations

Function IKD is suited for comfort ventilation of big and industrial halls. Suitable for heating and cool-ing because of the adjustable construction. Installation height is between 4 and 15 m. The air stream pattern (horizontal or vertical) can be adjusted manually or by an actuator. The IKD consists of an inlet cone and an inner and outer cage with openings for supply air in the peripheral surface and the underside. Depen-dent of the operation method the openings in the peripheral surface (cooling, horizontal air stream) or the underside (heating, vertical air stream) are opened. There is no difference in pressure drop or sound level when the opera-tion method is changed.

DesignThe IKD is made of powder coated steel (RAL 9010) and is available in the duct connection sizes 180, 250, 315, 400 and 500 mm. The standard type has a perforated plate (flow straightener). The plenum box is from galva-nized steel with included damper.

MountingThe IKD can be mounted directly in a spiro duct or combined with the plenum box.

VersionsIKD – Standard versionD – Damper includedPB – Plenum box with side entry and damperM1 – Actuator 230VM2 – Actuator 24V M3 – Actuator 24V 0-10V stepless control

Ordering codeIKD-D-300(D-Version, Size)

The IKD will be fixed with 4 screws to the plenum box. The included damper can be adjusted from below.


At sizes 400-800 the motor is inside the diffuser, at size 300 the motor is on the outside

IKD-D with damper

Openings can be fixed by a screw on theperipheral surface.

IKD-M with Actuator

Dimensions ØA Ød L K ØE ØD HIKD 300 302 180 144 79 260 178 330IKD 400 402 250 178 98 360 348 400IKD 500 502 315 200 120 460 313 465IKD 600 602 400 221 136 560 398 550IKD 800 802 500 310 185 725 498 650

IKD-PB, With plenum box

IKD (Cooling, Horizontal outlet -10K)

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)IKD -D -PB

300 30139 30149 30144 3 4 6 14 29 52

400 30140 30150 30145 2 3 5 10 15 40

500 30141 30151 30146 4 5 7 8 14 44

600 30142 30152 30147 3 5 7 10 22 45

800 30143 30153 30148 4 6 8 2 8 30

m3/h 200 300 400 650 1100 1550 2550 20-25 30 35-40

l/s 56 83 111 181 306 431 708 dB (A)

IKD (Heating, Vertical outlet at +15K)

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)IKD -D -PB

300 30139 30149 30144 2 3 4 14 29 52

400 30140 30150 30145 2 3 5 10 15 40

500 30141 30151 30146 2 3 5 8 14 44

600 30142 30152 30147 2 4 6 10 22 45

800 30143 30153 30148 2 3 5 2 8 30

m3/h 200 300 400 650 1100 1550 2550 20-25 30 35-40

l/s 56 83 111 181 306 431 708 dB (A)


65|

TSDCircular swirl diffuser with adjustable blades

Dimensions

FunctionTSD is designed for comfort ventilation of big and large volume halls. Suitable for heating and cooling due to construction with adjustable ge-ometry. Installation height is between 4 and 15 m. The air stream pattern (horizontal, vertical and intermittent) can be adjusted manually or by a motor. The TSD consists of an inlet assem-ble containing the fix blades and frontal conic outlet and an inner assembly with adjustable set of deflectors which are mobile.

For cooling, a horizontal outlet air pattern is achieved when the blades are in closed posi-tion. And have a vertical swirl jet stream when the deflectors are in full open position to achieve heating in occupied zone. Intermittent positions can be achieved when the deflectors are set between closed and full open positions for ventilation of the occupied zone

DesignThe TSD swirl diffusers are manufactured in steel sheet, with a standard powder paint fin-ish in white colour RAL 9010. Available in the following diameter: Ø 315, Ø 400, Ø 630 and Ø 800

Size ØD ØE ØF G H J315 313 464 381 145 92 215400 398 567 468 157 101 236630 628 871 700 204 117 367800 798 1077 871 229 123 538

Size ØE ØF ØI ØP L M N O K315 464 381 317 248 474 150 282 290 435400 567 468 402 313 581 168 368 351 500630 871 700 628 398 812 293 468 526 750800 1077 871 798 498 1081 458 568 741 1000

TSD (Heating)

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)TSD TSD-M3 -PB

315 42320 42333 311772 1 1 2 2 18 41

400 42321 42334 311773 1 2 2 16 29 47

630 42322 42335 311774 2 3 4 11 19 25

800 42323 42336 311775 2 3 4 6 14 19

m3/h 200 400 600 800 1000 1250 1875 2500 20-25 30 35-40

l/s 56 111 167 222 278 347 521 694 dB (A)

TSD (Cooling)

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)TSD TSD-M3 -PB

315 42320 42333 311772 5 5 6 2 18 41

400 42321 42334 311773 5 5 6 16 29 47

630 42322 42335 311774 5 5 6 11 19 25

800 42323 42336 311775 5 6 6 6 14 19

m3/h 200 400 600 800 1000 1250 1875 2500 20-25 30 35-40

l/s 56 111 167 222 278 347 521 694 dB (A)

TSD-M

TSD

TSD-PB


MountingMounted directly to the rigid vertical duct, or mounted to side entry plenum and then fixed to rigid ceiling with threaded drop-rods.

Selection TableTable below shows the general product per-formance for more details please see selection software or contact your local

66 |

AJDLong throw adjustable nozzles

FunctionThe AJD long throw nozzle and the decorative ring are manufactured in aluminium, with a standard powder paint finish in white RAL 9010. The connection part is manufactured of galvanised steel sheet. The AJD nozzle has an extraordinarly good aesthetic design and can be painted by special order to fit any decorative need. The AJD nozzles provide long throws with a low noise level, releasing a long air jet with exceptional precision to a length of over 30 metres. They can be used for spot cooling and are especially appropriate for large rooms requiring a decorative look, for instance, large vestibules, entertainment areas, airport halls, department stores, hotels, etc.

The configuration allows the nozzle to swivel in all directions up to a maximum of ± 30° in the horizontal or vertical direction.

DesignThe AJD long throw nozzles are manufactured in aluminium, with a standard powder paint finish in white RAL 9010. The connection part is manufactured of galvanised steel sheet. Available in the following diameter: Ø100, Ø125, Ø160, Ø200, Ø250, Ø315, Ø400.

MountingWith concealed screws

Ordering CodeThe ordering code is AJD-100 with sizes

Size ØD3 ØD4 E L2100 146 98 11 78125 140 123 11 86160 200 158 11 98200 257 198 16 117250 302 248 16 155315 384 248 23 183400 467 398 24 208

Dimensions

ØD

4

ØD

3

EL2

AJD


100 41000 21 26 33 57 105 155

125 41001 24 32 40 68 115 171

160 41002 25 32 47 46 70 142

200 41003 37 48 56 57 96 146

250 41004 37 59 75 37 87 133

315 41005 42 51 78 37 52 114

400 41006 61 77 95 36 55 86

m3/h 75 100 125 165 205 305 405 505 630 780 1155 1480 1805 20-25 30 35-40

l/s 21 28 35 46 57 85 112 140 175 217 321 411 501 dB (A)

Jet diffusers

67|

DimensionsFunctionThe JSR is a circular multiple-cone diffuser for supplying air to large areas, which can be installed onto a PER plenum box or a duct. A scattered distribution pattern (short throw) or concentrated distribution pattern (long throw) can be set by rotating the diffuser 180°. This unit can be mounted on either the wall or the ceiling, and is suitable for both cooled and heated supply air. The angle of the diffuser can be set at between 15 and 30° depending on the distribution pattern.

DesignThe JSR is manufactured from sheet metal with a white powder-coated finish (RAL 9010-80) and is available in the following diameters: Ø200, Ø250, Ø315, Ø400 and Ø500.



Ordering CodeThe ordering code is JSR - 200 with sizes and the accessory is Plenum box PER with remov-able damper and test points.

Concentrated distribution Scattered distribution pattern (long throw) pattern (short throw)

JSRCircular multi-cone jet diffuser with narrow

concentric or wide cones for long or short air pattern

ØD AJSR-200 199 115JSR-250 249 115JSR-315 314 115JSR-400 399 115JSR-500 499 115

The diagram shows Air flow (l/s and m3/h), total pressure (Pa), throw l0,2 and sound pressure level [dB(A)].

Sound attenuation, ΔL (dB)Mid-frequency band, Hz

63 125 250 500 1k 2k 4k 8kJSR-200 13 9 4 - - - - -JSR-250 11 7 3 - - - - -JSR-315 10 5 2 - - - - -JSR-400 8 4 1 - - - - -JSR-500 7 3 1 - - - - Sound power level, scattered distribution pattern, Lw Lw(dB) = LpA + Kok (LpA = diagram Kok = table) correction factor Kok

Mid-frequency band, Hz 125 250 500 1k 2k 4k 8kJSR-200 5 1 1 1 -5 -13 -19JSR-250 5 2 0 0 -5 -12 -17JSR-315 6 1 0 1 -6 -14 -18JSR-400 6 2 1 0 -8 -13 -17JSR-500 8 2 3 0 -9 -13 20Sound power level, concentrated distribution pattern, Lw JSR-200 3 -1 -2 1 -4 -13 -18JSR-250 2 -1 -3 2 -6 -16 -20JSR-315 1 -2 -3 2 -8 -18 -21JSR-400 2 -1 4 0 -9 -14 -18JSR-500 5 0 4 0 -13 -18 -22Tolerance ±6 ±3 ±2 ±2 ±3 ±3 ±4

JSR

SizeArt No

Air flow range (m3/h, l/s) and throw I0,2 (m) ∆Pt - Pressure drop (Pa)JSR PER

200 6001 6524 6 9 12 16 34 52

250 6002 6525 7 10 13 13 38 59

315 6003 6526 6 8 13 12 24 49

400 6004 6527 7 9 11 15 28 41

500 6005 B505 6 8 11 12 23 34

m3/h 300 400 500 600 750 1100 1450 1800 2400 3000 20-25 30 35-40

l/s 83 111 139 167 208 306 403 500 667 833 dB (A)

Jet diffusers

68 |

Dimensions

LPSDisplacement diffuser suspended or mounted against the ceiling for low velocity ceiling air distribution

FunctionThe LPS for individually suspended installation is suitable for isothermal air as well as comfort cooling. LPS and LPSW is a supply air system for draught-free air supply in various premises such as shops, schools, offices and industries. LPS is a supply air system for constant or vari-able airflow. The design provides an even air distribution over the whole exhaust area of the diffuser. LPSW is used when aesthetic and hygienic reasons make it suitable to integrate the supply air with the ceiling.

Minimum distanceMinimum distance according to table A. After a disturbance such as a T-bend, bend etc. a non-perforated duct (powder coated duct) with a length of minimum 4 x the duct diameter should be installed. Recommended max. temperature difference for cooled air ΔT according to table A. Recommended min. distance between supply air ducts (c) is shown in the table. The distance from supply air duct to wall (d) should be at least half of that distance.

Table shows Air flow directed upwards can provide a cooling effect of 50 to 200 W/m2


LPSW A B L ØD1 ØD2200-500 245 205 517 199 201250-500 295 255 517 249 251315-500 360 620 517 314 316200-1000 245 205 517 199 201250-1000 295 255 517 249 251315-1000 360 620 517 314 316

LPSW-T A B C L ØD1200-500 245 205 300 1085 199250-500 295 588 325 1085 249315-500 360 320 355 1085 314

a 2300 2500 2300 2300b 100 50 200 200c 2500 2500 2500 2500d 1300 1300 1300 1300Δt 0 to -10 0 -1 to -10 0 to 4

Sideways Downwards Upwards Around

LPS L ØD1 ØD2160-500 517 159 161200-500 517 199 201250-500 517 249 251315-500 517 314 316400-500 517 399 401500-500 517 499 501160-1000 1012 159 161200-1000 1012 199 201250-1000 1012 249 251315-1000 1012 314 316400-1000 1012 399 401500-1000 1012 499 501

a

b

c

4 x D

d

d

ØD2

A

L

B

ØD1

LPSW

ØD1A B

C

ØD1

L

LPSW-T

L

ØD1ØD2

LPS

Displacement diffusers

69|Displacement diffusers

70 |

RDAConstant volume damper for duct or air inlets

DimensionsFunctionThe air flow regulator RDA is an element placed inside the duct in order to obtain a constant flow within a pressure range from 50 to 200 Pascal. It is used in ventilation or air conditioning systems for supply or return air. The air is forced to pass through predeter-mined space in which a flap can change the position according to the specified air flow. The flap is attached on to a calibrated spring and therefore no auxiliary power is needed.

DesignRDA is made from plastic material (polysty-rene) classified M1 in grey colour. Maximum temperature is 60°C.

MountingRDA is inserted directly into a horizontal or vertical circular duct. It is fixed and kept air-tight by a lip seal. Arrow indicates the airflow. If the unit is placed in supply duct, the space between the diffuser and the unit must be at least 3x diameter of the duct. If used for return air the space must be 1x diameter of the duct.

Ordering CodeRDA-80/1580 - size15 - air volume

Ø L ØD1 ØD280 55 76 73100 60 96 93125 90 120 117

1

2

3

3

21

D1

D2

D2

D1

L

L

*spacer = special body without spacers1* air flow = special shims with air flow ref.

spacer

Type Art No RDA-80 /15 (m³/h) 35259 RDA-80 / 30 (m³/h) 35260 RDA-80 / 45 (m³/h) 35261 RDA-80 / 50 (m³/h) 35262RDA-80 / 60 (m³/h) 35263 RDA-100 / 15 (m³/h) 35265 RDA-100 / 30 (m³/h) 35266 RDA-100 / 45 (m³/h) 35267 RDA-100 / 50 (m³/h) 35268 RDA-100 / 60 (m³/h) 35269 RDA-100 / 75 (m³/h) 35270 RDA-100 / 90 (m³/h) 35271 RDA-100 / 100 (m³/h) 35272 RDA-125 / 15 (m³/h) 35274RDA-125 / 180 (m³/h) 35280 RDA-125 / 30 (m³/h) 35275 RDA-125 / 45 (m³/h) 35276 RDA-125 / 50 (m³/h) 35277 RDA-125 / 60 (m³/h) 35214 RDA-125 / 75 (m³/h) 35213 RDA-125 / 90 (m³/h) 35212 RDA-125 / 100 (m³/h) 35278 RDA-125 / 120 (m³/h) 35211 RDA-125 / 150 (m³/h) 35279

Airflow LW dB(A)(m3/h) 50Pa 100Pa 150Pa 200Pa15 25 29 32 3530 26 31 35 3845 27 33 36 3960 32 37 39 4275 32 37 40 4290 32 38 41 44120 30 34 39 42150 33 37 41 45

Flow(m³/h)

Lw in dB(A)

50 Pa 100 Pa

150 Pa

200 Pa

15 25 29 32 35

30 26 31 35 38

45 27 33 36 39

60 32 37 39 42

75 32 37 40 42

90 32 38 41 44

120 30 34 39 42

150 33 37 41 45

Flow regulators are characterized by their noise level in dB(A).

Tests reports : CETIAT 2315002 for air flow RD Ø80 to RD Ø125 mm

Air fl

ow in

m3 /

h

∆PT, Differential pressure in Pa

Air volume controllers

71|

RPK-RConstant volume damper with adjustable air flow

DescriptionRPK is a constant air flow regulator which is used for exact mechanical setting of required air volume in ventilation systems without need of any other energy.

RPK is characterized by:• regulation accuracy• easy mounting• maintenance-free• tight connection with the duct

FunctionThe RPK enables regulation of individually required amounts of air in separate ventilation system zones. RPK works in temperature from -20 to 80°C and relative humidity up to 80%. Recommended air flow veloc-ity is from 3 to 8 meters per second at pressure difference to Δp 500 Pa. Accuracy is ±5 %(±10% for outer settings).

DesignThe RPK is manufactured from galvanized sheet metal, only the blade is from aluminium. All steel parts are zinc plated, spring is made from high quality steel. Sliding bearing is suitable for high temperatures and doesn´t require any lubrication. The cover of adjusting mechanism is made from ABS plastic and the plastic functional parts are from PA plastic.

MountingRegulator can be mounted to horizontal, diagonal or vertical duct. The blade must be always horizontal. It is necessary to pay attention to correct direction of mounting, so that the air is entering the regulator according to the arrow direction, which is located on regulator casing. Connecting the duct and the regulator is done according to its size with grub screws ø3,2x13 to ø3,9x16, or with rivets of the same diameters and the connection is sealed with sealing tape. After mounting, set the required air volume by turning the working screw on the controller box.

RPK-R main dimensions

Way of mounting RPK-R

Nominal dimensions Size (mm) Art No V [m/s] q [m3.h-1] Ød1 [mm] Ød2 [mm] L [mm] L1 [mm] L2 [mm] L3 [mm] M [kg] m(i) [kg] 80 40972 4,3-8,4 75-140 78 170 350 260 76 123 0.8 1.7100 40667 3,7-7,5 100-200 97 190 350 260 86 136 1 2.1125 40668 3,2-7,1 125-300 122 215 360 270 100 148 1.2 2.4140 40669 3,6-6,4 190-340 13 230 370 280 107 156 1.4 2.8160 40670 4,3-8,9 300-620 157 250 380 290 117 166 1.6 3.2180 40671 2,8-8,1 250-720 177 270 390 300 128 176 1.9 3.6200 40672 3,2-7,3 350-800 197 290 400 310 138 186 2.1 4250 40673 3,8-7,5 650-1300 247 340 425 335 164 208 3.3 5.8315 40674 3,1-6,4 850-1750 312 405 500 410 196 243 5 8.3


72 |

SPIIris damper for measuring and adjusting air flow

FunctionThe SPI is an iris damper for measuring and adjusting the air flow. The SPI has the following specifications: low noise level, centrically formed air flow and fixed test points for precise mea-surements. The damper also has an adjustment aperture which can be opened completely, which means there is no need for an access door for cleaning. Available in sizesØ80-630. Max temperature for SPI is 70°C.

DesignThe damper is manufactured from galvanised sheet steel and is fitted with a rubber seal tested for air-tightness.

MountingThe SPI adjustment damper must be installed in accordance with the distances required to minimise air-flow deviation. The SPI enables the taking of precise air-flow measurements at all points including points close to duct deviations such as T junctions and bends, and points in front of other supply-air devices (see below).

Protective distance before bends 1 X ØDafter“ 1 X ØDbefore T-pipes 3 X ØDafter “ 1 X ØDbefore supply-air devices 3 X ØD


ordering codeThe ordering code is SPI - 160 with sizes.

Dimensions

Art No Ød C ØDSPI-80 7621 79 110 125SPI-100 6750 99 54 163SPI-125 6751 124 63 210SPI-150 6752 149 54 230SPI-160 6753 159 60 230SPI-200 6754 199 62 285SPI-250 6755 249 62 333SPI-300 6756 299 65 405SPI-315 6757 314 63 406SPI-400 6758 399 70 560SPI-500 7625 499 60 644SPI-630 7626 629 60 811SPI-800 6881 798 70 1015


73|

DescriptionSystemair SPM iris damper with more choking ability. The SPM is an iris damper for measuring and adjusting the air flow, with more choking ability than the SPI. The SPM has the following specifications: low noise level, centrically-formed air flow and fixed test points for precise mea-surements. Available is sizes 0160-400.

DesignThe damper is manufactured from galvanised sheet steel and is fitted with an air-tight rubber seal. Size 0160-400.


MountingThe SPM adjustment damper must be installed in accordance with the distances required to minimise air-flow deviation. Reducing or enlarging the duct to the next duct size does not require any specified distances for minimising deviation. The SPM enables the taking of precise air-flow measurements at all points including points close to duct deviations such as T junctions and bends, and points in front of other supply-air devices.


Ordering CodeThe ordering code is SPM - 160 with sizes and the accessory is Access door for cleaning RLL.


Dimensions

SPMIris damper for measuring and adjusting air flow

with more choking ability

Art No Ød C ØDSPM-160 6257 159 60 230SPM-200 6253 199 62 285SPM-250 6254 249 62 333SPM-300 6238 299 65 405SPM-315 6255 314 63 406SPM-400 6256 399 70 560

ØD

ØdC


74 |

SPI-FActuator driven iris dampers

FunctionThe SPI-F models are iris dampers fitted with a motor designed for controlling the air flow using two predetermined settings. The minimum and maximum air-flow settings are adjusted with the help of a measuring nipple, and are fixed mechanically with damper stops. The SPI-F models have a low sound level and produce a centrically patterned airflow. They are ideal for use as adjustable, motorised dampers.

DesignThis air-supply device consists of an SPI iris damper with an actuator for forced air flow. It is manufactured from galvanised sheet steel, equipped with test points for easy setup. Units are fitted with Belimo actuators, type LM24A or LM230A. Versions of the iris damper with a 0-10V modulating control signal are fitted with Belimo actuators type LM24A-SR.

MountingThe SPI-F adjustment damper must be installed in accordance with the distances required to mi-nimise air-flow deviation. Reducing or enlarging the duct to the next duct size does not require any specified distances for minimising deviation. The SPI-F enables the taking of precise airflow measurements at all points including points close to duct deviations such as T-junctions and bends, and points in front of other supply-air devices.

Protective distanceBefore bends 1 x ØDAfter “ 1 x ØDBefore T-pipes 3 x ØDAfter “ 1 x ØDBefore supply-air devices 3 x ØD

Dimensions

C L E FSPI-F-100 82 215 185 122SPI-F-125 106 235 195 130SPI-F-160 116 265 200 135SPI-F-200 143 285 210 135SPI-F-250 167 365 210 130SPI-F-315 203 408 210 130

Art NoType LM230A LM24A LM24A-SRSPI-F-100 6335 6336 6348SPI-F-125 6337 6338 6349SPI-F-160 6339 6340 6350SPI-F-200 6342 6343 6352SPI-F-250 6344 6345 6353SPI-F-315 6346 6347 6355


75|

Dimensions

SPM-FActuator driven iris damper with more choking ability

FunctionThe SPM-F models are iris dampers fitted with a motor designed for controlling the air flow using two predetermined settings. The minimum and maximum air-flow settings are adjusted with the help of a measuring nipple, and are fixed mechanically with damper stops. The SPM-F models have a low sound level and produce a centrically patterned airflow. They are ideal for use as adjustable, motorised dampers.

DesignThis air-supply device consists of an SPM iris damper with an actuator for forced air flow. It is manufactured from galvanised sheet steel, equipped with test points for easy setup. Units are fitted with Belimo actuators, type LM24A or LM230A. Versions of the iris damper with a 0-10V modulating control signal are fitted with Belimo actuators type LM24A-SR.

MountingThe SPM-F adjustment damper must be installed in accordance with the distances required to minimise air-flow deviation. Reducing or enlarging the duct to the next duct size does not require any specified distances for minimising deviation. The SPM enables the taking of precise airflow measurements at all points including points close to duct deviations such as T junctions and bends, and points in front of other supply-air devices.


C D E FSPM-F-160 116 265 200 135SPM-F-200 143 285 210 135SPM-F-250 167 365 210 130SPM-F-315 203 408 210 130

Art NoType LM230A LM24A LM24A-SRSPM-F-160 6356 6357 6364SPM-F-200 6358 6359 6365SPM-F-250 6360 6361 6326SPM-F-315 6362 6363 6327


76 |

RSKBack draft damper for circular ducts

FunctionBack draft damper for circular ducts, manufactured from galvanised sheet steel. The two blades are spring-loaded, which means that the damper can also be mounted vertically

Selection TableTable below shows the general product performance for more details please see selection software or contact your local

Art No ØA D B CRSK100 5597 100 80 24 33RSK125 5598 125 100 33 44RSK150 5599 150 100 34 43RSK160 5601 160 120 42 55RSK200 5602 200 140 55 62RSK250 5603 250 140 54 62RSK315 5604 315 140 50 65RSK355 9972 355 247 75 75RSK400 9973 400 247 75 75RSK450 9768 450 247 75 75RSK500 7349 500 247 75 75RSK560 9769 560 247 75 75RSK630 9770 630 247 75 75

Dimensions


RSK 100-160 PRESSURE DROP RSK 200-315 PRESSURE DROP RSK 450-560

77|

VKKBack draft damper

FunctionBack draft damper for installation in horizontal ducts. The profiled vanes produce a strong upward force which reduces the air resistance. This means that the vanes open fully at low air velocities as well.

DesignThe box is manufactured from galvanised sheet steel. The damper inside the box is manufactured in weather-resistant and shock-proof nylon material. The robust construction ensures that the vanes will not become deformed or loose. Air velocity should not exceed 12 m/s.


Art No Ø A B C D EVKK 100 1623 100 123 199 205 200 201VKK 125 1624 125 123 199 205 200 201VKK 160 1625 160 123 199 205 200 201VKK 200 1626 200 123 199 302 300 297VKK 250 1627 250 123 239 302 300 297VKK 315 1628 315 123 239 350 345 345VKK 400 1629 400 123 259 454 450 450

* Airflow** Free area

Dimensions


78 |

VKLouver shutter for external mounting on a wall

FunctionLouvre shutters for vertical mounting on a wall. The profiled vanes produce a strong upward force which reduces the air resistance. This means that the vanes opens fully at low air velocities as well.

DesignAll the parts are manufactured in weather-resistant and shockproof ny-lon material (PVC containing special synthetic). The robust construction ensures that the vanes will not become deformed or loose. Above size 45, the vanes are fitted with a cast counterweight. Air velocity should not exceed 12 m/s. The louver shutters are easy to install. Wall plugs and screws are included above size 15.

Selection TableTable below shows the general product performance for more details please see Art No A B C D E F G

VK 10 5636 142 15 103 96 5 46 3VK 12 5638 164 12 115 117 5 38 4VK 15 5605 178 20 130 152 4 50 5VK 20 5639 245 20 190 210 5 50 6VK 25 5640 299 25 235 260 5 70 5VK 30 5641 347 26 274 310 5 70 6VK 35 5642 397 26 310 360 5 70 7VK 40 5643 460 26 364 423 5 65 8VK 45 5645 501 31 395 460 5 70 6VK 50 5646 549 31 445 510 5 95 7VK56* 9951 610 30 530 530 5 80 14(2x7)VK63* 5651 701 31 626 660 5 85 16(2x8)VK71* 5653 749 31 663 710 5 90 18(2x9)

G= number of blades* Side by side shutters

B

FØC

ØD

ØE

A

A

Dimensions


Art No A B C D E F G H I J*VK 40-20 5644 455 15 452 255 215 415 XX 285 485 44VK 50-25 5674 555 15 552 305 265 515 XX 335 585 44VK 50-30 5648 555 15 552 355 315 515 XX 385 585 44VK 60-30 5649 655 15 2x309 355 315 615 30 385 685 44VK 60-35 5650 655 15 2x309 405 365 615 30 435 685 44VK 70-40 5652 755 15 2x359 455 415 715 30 485 785 44VK 80-50 5655 846 15 2x405 555 515 806 30 585 876 44VK 100-50 5637 1146 15 2x560 555 506 1097 28 585 1176 42J* = Thickness frame

A

F

C

D

G

E H

I

B

79|

IGCCircular external louver

FunctionLouver designed for intake or exhaust air..

DesignConnection diameters ø 100-315 mm, and is manufactured from die-cast aluminium and sup-plied with a mesh designed to keep out large insects

Selection TableTable below shows the general product performance for more details please see selection soft-ware or contact your local

Ø D = outside diameterØ d = connection diameter

ød øDIGC-100 100 125IGC-125 125 150IGC-160 160 185IGC-200 200 225IGC-250 250 275IGC-315 315 350

IGC

Size Art No Min AirFlow (m3/hr) Min Pressure (pa) Max AirFlow (m3/hr) Max Pressure (pa)

100 5581 35 5 140 100

125 5582 50 4 210 100

160 5583 80 5 320 100

200 5584 125 5 500 100

250 5585 200 7 750 100

315 5586 300 7 1200 100

Ød

ØD

Dimensions

Louvers

80 |

IGKSquare external Louver

DimensionsFunctionIntake grid manufactured from galvanised sheet steel with wall flange and insect mesh. Connection sleeve with a rubber seal.


ØA B

IGK 100 100 37IGK 125 125 37IGK 160 160 37IGK 200 200 41

IGK

Size Art No Min AirFlow (m3/hr) Min Pressure (pa) Max AirFlow (m3/hr) Max Pressure (pa)

100 1630 70 2 760 160

125 1631 70 2 760 160

160 1632 70 2 760 160

200 1633 70 2 760 160

Louvers

81|

PRGRear, side or top entry insulated plenum box

designed for rectangular grilles

DimensionsPlenum boxThe PRG plenum box is manufactured from galvanised sheet steel with connection sleeves (rear, top or side) fitted with rubber seals tested for air-tightness. Acoustically insulated with basotec material.

The PRG plenum box can be used for both supply and exhaust air, and can be used in conjunction with a grille for pressure reduction, air-stream balancing and sound attenuation, as well as for measuring and adjusting the air flow. The damper and measuring units facilitate easy cleaning.

The k-factor for adjustment is indicated on the damper itself. PER ple-num boxes are manufactured from galvanised sheet steel with connec-tion sleeves fitted with rubber seal tested for air-tightness. Acoustically insulated with basotec material.

The PER plenum box can be used for both supply and exhaust air. To ensure correct settings, there must be a straight length of supply-air duct, its length equivalent to 4 times the duct diameter, before the plenum box.

Ordering codeThe ordering code is Balance - PRG - 1- 500 x 200 where 1 = rear connection, 2 = side connection, Width x height of the outletand 3 = top connection.

PRG PRG-1 PRG-2 PRG-3 A B C ØD E F G200x100 6211 6220 6426 200 100 175 123 50 240 120300x100 6212 6221 6427 300 100 210 158 50 280 140400x100 6213 6222 6430 400 100 210 158 50 280 140500x100 6214 6223 6428 500 100 250 198 55 310 155300x150 6215 6224 6431 300 150 250 198 55 310 155400x150 6216 6225 6429 400 150 300 248 55 360 180500x150 6217 6226 6432 500 150 300 248 55 360 180500x200 6218 6193 6433 500 200 370 313 55 420 210600x200 6219 6194 6434 600 200 370 313 55 420 210

1 2

2

1 3

3

Plenum boxes

82 |

PERSide entry plenum box designed for circular inlet diffusers

DimensionsPlenum boxPER plenum boxes are manufactured from galvanised sheet steel with connection sleeves fitted with rubber seal tested for air-tightness. Acoustically insulated with basotec material. The PER plenum box can be used for both supply and exhaust air. To ensure correct settings, there must be a straight length of supply-air duct, its length equivalent to 4 times the duct diameter, before the plenum box.

The PER plenum box is used together with air diffusers for pressure reduction, air-flow balancing and sound attenuation as well as for mea-suring units are removable. The k-factor for adjustments is indicated on damper itself.

PER Art No A B C D E ØD1 ØD2100-125 6522 250 320 150 47 185 99 126125-200 6523 250 360 160 47 210 124 161160-200 6524 300 450 195 47 280 159 202200-250 6525 350 500 250 54 305 199 252250-315 6526 450 565 300 54 330 249 317315-400 6527 550 620 400 54 360 314 402

Plenum boxes

83|

VVKSide entry plenum box designed for square ceiling diffusers

FunctionThe VVK plenum box is an accessory to the VVKR or VVKN square ceiling diffuser. Its main use is the reduction of noise and equalize the air flow. It is suitable for supply or return air. Inside the box is a perforated plate. Plenum box has a side connection with damper included.

DesignThe VVK plenum box is manufactured from galvanized steel sheet.

MountingThe plenum box is mounted to the ceiling with rods through included openings.

Ordering codeVVK-0-P-H-1-Q-300Non-insulated supply plenum with damper on inlet for Square diffuser

Hella-A-PBPlenum box for Hella linear slot diffuser

Size Art No D(mm) K(mm) H1(mm)300 41073 158 290 270400 41074 198 390 280500 41075 198 490 290600 41076 248 590 340625 41458 248 615 340

Item name Art No H L E ØD FHella-A-PB-600-1 42349 221 569 47 125 76Hella-A-PB-1200-1 42350 221 1169 47 125 76Hella-A-PB-1800-1 42351 221 1769 47 125 76Hella-A-PB-2400-1 42352 221 2369 47 125 76Hella-A-PB-600-2 42353 272 569 87 160 94Hella-A-PB-1200-2 42354 272 1169 87 160 94Hella-A-PB-1800-2 42355 272 1769 87 160 94Hella-A-PB-2400-2 42356 272 2369 87 160 94Hella-A-PB-600-3 42357 374 569 127 200 114Hella-A-PB-1200-3 42358 374 1169 127 200 114Hella-A-PB-1800-3 42359 374 1769 127 200 114Hella-A-PB-2400-3 42360 374 2369 127 200 114Hella-A-PB-600-4 42361 374 569 167 200 114Hella-A-PB-1200-4 42362 374 1169 167 200 114Hella-A-PB-1800-4 42363 374 1769 167 200 114Hella-A-PB-2400-4 42364 374 2369 167 200 114

FunctionPlenum box for Hella linear slot diffuser simplifies the installation of the slot diffuser itself, reduces the noise levels and air speed. Plenum box can be used for supply or return air. Standard supply is with side con-nection.

DesignPlenum box is manufactured from galvanized steel sheet. For diffuser length up to 1,5m only one plenum box is used for 1,5 to 2,4 meter two plenum boxes are used.

MountingPlenum box is mounted to the ceiling with rods through included open-ings and the diffuser is installed into the plenum box with screws.

Ordering CodeHella-A-PB-aaaa-ba = Length of the slot diffuserB = Number of slotsInsulated supply plenum with damper on inlet for linear slot diffuser

Dimensions

Dimensions

Plenum boxes

84 |

ACOUSTICS

Basic principles of soundBefore we discuss the connection between the sound power level and the sound pressure level, we must define certain basic concepts such as sound pressure, sound power and frequency.

Sound pressureSound pressure is the pressure waves with which the sound moves in a medium, for instance air. The ear interprets these pressure waves as sound. They are measured in Pascal (Pa).

The weakest sound pressure that the ear can interpret is 0.00002 Pa, which is the threshold of hearing. The strongest sound pressure which the ear can tolerate is 20 Pa, referred to as the upper threshold of hearing. The large difference in pressure, as measured in Pa, between the threshold of hearing and the upper threshold of hearing, makes the figures difficult to handle. So a logarithmic scale is used instead, which is based on the difference between the actual sound pressure level and the sound pressure at the threshold of hearing. This scale uses the decibel (dB) unit of measurement, where the threshold of hearing is equal to 0 dB and the upper threshold of hearing is 120 dB. The sound pressure reduces as the distance from the sound source increases, and is affected by the room’s characteristics and the location of the sound source.

Sound powerSound power is the energy per time unit (Watt) which the sound source emits. The sound power is not measured, but is calculated from the sound pressure. There is a logarithmic scale for sound power similar to the scale for sound pressure.

The sound power is not dependent on the position of the sound source or the room’s sound properties, and it is therefore easier to compare between different objects.

FrequencyFrequency is a measurement of the sound source’s periodic oscillations. Frequency is measured as the number of oscillations per second, where one oscillation per second equals 1 Hertz (Hz). More oscillations per second, i.e. a higher frequency, produces a higher tone.

Frequencies are often divided into 8 groups, known as octave bands: 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz and 8000 Hz.

Theory

85|

Sound power level and sound pressure level

There is a link between a sound source’s sound power level and the sound pressure level. If a sound source emits a certain sound power level, the fol-lowing factors will affect the sound pressure level:

The position of the sound source in the room, including the direction factor (1), the distance from the sound source (2) and the room’s sound-absorbing properties, referred to as the room’s equivalent absorption area (3).

1) Direction factor, QThe direction factor indicates the sound’s distribution around the soundsource. A distribution in all directions, spherical, is measured as Q = 1.Distribution from a diffuser positioned in the middle of a wall is hespherical,measured as Q = 2.

Figure 1. The distribution of sound around the sound source.

2) Distance from sound source, rWhere r indicates the distance from the sound source in metres.

3) The room's equivalent absorption area, AeqvA material's ability to absorb sound is indicated as absorption factor α. The absorption factor can have a value between '0' and '1', where the value '1' corresponds to a fully absorbent surface and the value '0' to a fully reflec-tive surface. The absorption factor depends on the qualities of the material, and tables are available which indicate the value for different materials.

A room's equivalent absorption area is measured in m2 and is obtained by adding together all the different surfaces of the room multiplied by their respective absorption factors.

In many instances it can be simpler to use the mean value for sound absorption in different types of rooms, together with an estimate of the equivalent absorption area (see figure 2).

Q = 1 In centre of roomQ = 2 On wall or ceilingQ = 3 Between wall or ceilingQ = 4 In a corner

Calculation of equivalent absorption area Aeqv

Aeqv = α1 . S1 + α2 . S2 + … + αn + Sn

whereS = Size of surface (m2)α = Absorption factor, depending on the materialn = Number of surfaces

Calculation of sound pressure levelEstimate based on figures 1, 2 and 3 together with table 1.

A normally damped room in a nursing home, measuring 30 m3, is to be ventilated. According to the information in the catalogue, the directional supply-air terminal device fitted in the ceiling has a sound pressure level (LpA) of 33 dB(A). This ap-plies to a room with a space damping equivalent to 10 m2 Sabine, or 4 dB(A).

A) What will the sound pressure level be in this room, 1 m from the diffuser?

The sound pressure level depends on the room'sacoustic properties, so first of all it is necessary toconvert the value in the catalogue to a soundpower level (LWA).

Fig.3 shows that ∆L (space damping) = LpA - LWALWA = LpA + ∆LLWA = 33 + 4 = 37 dB(A)

Q=2Q=1

Q=8

Q=4

Theory

86 |

3) Equivalent absorption area based on estimatesIf values are not available for the absorption factors of all the surfaces, and a more approximate value of the room's total absorption factor is quite adequate, an estimate can be calculated in accordance with the diagram below. The diagram is valid for rooms with normal proportions, for example 1:1 or 5:2.

Use the diagram as follows to estimate the equivalent absorption area: calculate the room's volume and read off the equivalent absorption area with the correct mean absorption factor, determined by the type of room, see also table 1.

Figure 2. Estimate of equivalent absorption area.

Type of room Mean absorption factor

Radio studios, music rooms 0.30 - 0.45

TV studios, department stores, reading

rooms 0.15 - 0.25

Domestic housing, offices, hotel rooms,

conference rooms, theatres 0.10 - 0.15

School halls, nursing homes, small churches 0.05 - 0.10

Industrial premises, swimming pools, large

churches 0.03 - 0.05

Table 1. Mean absorption factors for different types of rooms.

Calculation of sound pressure levelWith the help of the factors previously described, it is now possible to calculate the sound pressure level if the sound power level is known. The sound pressure level can be calculated by means of a formula incorporating these factors, but this equation can also be reproduced in the form of a diagram.

With the following valuesr = 1Q = 2 (fig.1)and information about the room's dimensions, you can calculate the equivalent absorption area with the help of figure 2.

The equivalent absorption area is therefore 4 m2.It is now possible to use figure 3 to establish the difference between the sound pressure and the sound power

LpA - LWA = 0LpA = 0 + LWA

Enter the LWA value which has already been calculated.LpA = 0 + 37 = 37 dB(A)

A) The sound pressure level (LpA) one metre from the diffuser in this particular nursing home room is therefore 37 dB(A).

This calculation has to be made for all rooms not corresponding to the information in the catalogue which assumes a standard 10 m2 Sabine.

The less damped (harder) the room is, the higher the actual sound pressure level will be in comparison with the value indicated in the catalogue.

Theory

87|

When the diagram is used for calculating the sound pressure level, you must start with the distance in metres from the sound source (r), apply the appropriate directional factor (Q), and then read off the difference between the sound power level and the sound pressure level next to the relevant equivalent absorption area (Aeqv). This result is thenadded to the previously calculated sound power (see also the example on page 445).

Figure 3. Diagram for estimating the sound pressure level

Near field and reverberation fieldNear field is the term used for the area where the sound from the sound source dominates the sound level. The reverberation field is the area where the reflected sound is dominant, and it is no longer possible to determine where the original sound comes from.

The direct sound diminishes as the distance from the sound source increas-es, while the reflected sound has approximately the same value in all parts of the room.

Figure 4. Direct and reflected sound

The reverberation time indicates the time it takes for the sound level to reduce by 60 dB from the initial value. This is the echo effect one hears in a quiet room when a powerful sound source is switched off. If the reverberation time is measured precisely enough, the equivalent absorption area can be calculated.

Calculation of sound pressure level

whereLpA = sound pressure level (dB)LwA = sound power level (dB)Q = direction factorr = distance from sound source (m)Aeqv= equivalent absorption area (m2 Sabine)

Calculation of reverberation timeIf a room is not too effectively damped (i.e. with amean absorption factor of less than 0.25), the room's reverberation time can be calculated withthe help of Sabine's formula:where

T = Reverberation time (s)V = Room volume (m3)Aeqv=The room's equivalent absorptionarea, m2

Theory

88 |

Example of additionThere are two sound sources, 40 dB and 38 dB respectively.

1) What is the value of the total sound level?

The difference between the sound levels is 2 dB and, according to the diagram, 2 dB must be added to the highest level.

1) The total sound level is therefore 42 dB.

Example of subtractionThe total sound level is 34 dB in a room fitted with both supply and exhaust ventilation systems.It is known that the supply system produces 32 dB, but the value for the exhaust system is not known.

2) What is the sound level produced by the ex-haust system?

The difference between the total sound level andthe sound level of the supply system is 2 dB.The diagram indicates that 4 dB must be deducted from the total level.

2) Therefore the exhaust system produces 30 dB.

Several sound sourcesTo establish the total sound level in a room, all the sound sources must be added together logarithmically. It is, however, often more practicable to use a diagram to calculate the addition or subtraction of two dB values.

AdditionThe input value for the diagram is the difference in dB between the two sound levels which are to be added. The dB value to be added to the highest sound level can then be read off the y scale.

Figure 5. Logarithmic addition.

SubtractionThe input value for the diagram is the difference in dB between the total sound level and the known sound source. The y scale then shows the number of dB that have to be deducted from the total sound level to obtain the value for the unknown sound source.

Figure 6. Logarithmic subtraction.

Theory

89|

Adjustment to the earBecause of the ear's varying sensitivity at different frequencies, the same sound level in both low and high frequencies can be perceived as two dif-ferent sound levels. As a rule, we perceive sounds at higher frequenciesmore easily than at lower frequencies.

A filterThe sensitivity of the ear also varies in response to the sound's strength.A number of so-called weighting filters have been introduced to compen-sate for the ear's variable sensitivity across the octave band. A weighting filter A is used for sound pressure levels below 55 dB. Filter B is used for levels between 55 and 85 dB, and filter C is used for levels above 85 dB

Table 2. Damping with the A filter

The A filter, which is commonly used in connection with ventilation systems, has a damping effect on each octave band as shown in table 2.The resultant value is measured in dB(A) units

Hz 63 125 250 500 1k 2k 4k 8kdB -26,2 -16.1 -8.6 -3.2 0 +1.2 +1.2 -1.1

Figure 7. Damping with different filters

When calculating a sound level without A filter damping, for example in a duct system, it is simply a matter of adjusting the damped values in ac-cordance with table 2. So, for example, 26.2 dB must be added at 63 Hz, while 1.2 dB must be deducted at 2,000 Hz.

There are also other ways of compensating for the ear's sensitivity to differ-ent sound levels, apart from these filters. A diagram with NR curves (Noise Rating) shows sound pressure and frequency (per octave band). Points on the same NR curve are perceived as having the same sound levels, meaning that 43 dB at 4000 Hz is perceived as being as loud as 65 dB at 125 Hz.

NR curves

Theory

90 |

Sound attenuationSound attenuation is principally achieved in two ways: either by absorp-tion or by reflection of the sound.

Attenuation by absorption is achieved by internal insulation in ducts, byspecial silencers or by means of the room's own sound absorption.Attenuation by reflection is achieved by forking or bending, or when the sound bounces back from a supply-air device into the duct, which is referred to as end reflection.

The degree of sound attenuation can be calculated by using tables and diagrams presented in the relevant suppliers technical documentation.

Theory

91|

VENTILATION

There are essentially two ways of ventilating a building: ventilation bydisplacement and ventilation by diffusion.

Ventilation by displacement is chiefly used to ventilate large industrial premises, as it can remove large volumes of impurities and heat if properly dimen-sioned. The air is supplied at low velocity directly into the occupied zone. This method provides excellent air quality, but is less suitable for offices and other smaller premises because the directional supply-air terminal device takes up a considerable space and it is often difficult to avoid some amount of draught in occupied areas.

Ventilation by diffusion is the preferable method for supplying air in situa-tions requiring what is known as comfort ventilation. This is based on the principle of supplying air outside the occupied zone which then circulatesthe air in the entire room. The ventilation system must be dimensioned so that the air which circulates in the occupied zone is comfortable enough, in other words the velocity must not be too high and the temperature must be more or less the same throughout the zone.

The theory section which follows will discuss what happens to the air in rooms ventilated by diffusion, how to calculate air velocity and displacement in the room, and also how to select and position a directional supply-air terminal device correctly in the premises.

Ventilation by diffusionAn air stream which is injected into a room will attract, and mix together with, large volumes of ambient air. As a result, the air stream's volume increases while at the same time the air velocity is reduced the further into the room it travels. The mixing of the surrounding air into the air stream is termed 'induction'.

Figure 8. Induction of the surrounding air into the air stream.

The air movements caused by the air stream very soon mix all the air in the room thoroughly. Impurities in the air are not only attenuated but also evenly distributed. The temperatures in the different parts of the room are also evened out.

When dimensioning for ventilation by diffusion, the most important consid-eration is to ensure that the air velocity in the occupied zone will not be too high, as this will be experienced as a draught

Ventilation by displacementAir which is somewhat cooler than the ambient air flows at low velocity into the occupied zone.

Occupied zoneThe occupied zone is that part of the room nor-mally occupied by people. This is usually definedas being a space 50 cm from an outer wall with windows, 20 cm from other walls, and up to 180 cm above the floor.

Ventilation by diffusionThe air is blown in from one or more air streamsoutside the occupied zone.

Theory

92 |

Air stream theoryThe figure below shows an air stream that is formed when air is forced into a room through an opening in the wall. The result is a free air stream. If it also has the same temperature as the rest of the room, it is referred to as a free isotherm stream. To begin with, this section will only deal with streams of this type.

Distribution and shapeThe air stream actually consists of several zones with different flow condi-tions and air velocities. The area which is of most practical interest is the main section. The centre velocity, the velocity around the centre axis, is in inverse proportion to the distance from the diffuser or valve, i.e. the further away from the diffuser the slower the air velocity. The air stream is fully developed in the main section, and the prevailing conditions here are the ones that will principally affect the flow conditions in the room as a whole.

Figure 9. The main section of the air stream, the centre velocity vx and discharge angle.

The shape of the diffuser or valve opening determines the shape of the air stream. Circular or rectangular openings produce a conic (axial) stream, and this also applies to very long and narrow openings. To produce a complete-ly flat air stream, the opening must be more than ten times as wide as it is high, or nearly as wide as the room so that the walls prevent the stream widening out laterally. Radial air streams are produced by completely circu-lar openings where the air can spread in all directions, as is the case with a supply-air diffuser.

Figure 10. Different kinds of air stream.

α = the discharge angle

The discharge angleAccording to ASHRAE’s Handbook (AHRAE [TheAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers], 1996) the distributionof an air stream has a constant angle of 20 - 24° (22° on average).

The shape of the vent, the geometry of the room and also the number of vents all have an effect on the discharge angle. Diffusers and valves with plates or other details which spread the air can produce a wider discharge angle, but even after a relatively short distance from the valve opening, these air streams have a distribution of between 20 and 24°.

Calculation of air velocityFor a conical or radial air stream:

x = distance from the diffuser or valve (m)vx = centre velocity at distance x (m/s)v0 =velocity at the diffuser/valve outlet (m/sK = the diffuser coefficientAeff = the diffuser/valve's effective outlet area (m2)q = air volume through the vent (m3/s)

For a flat air stream

x = distance from the diffuser/valve (m)vx = velocity at distance x (m/s)v0 = velocity at the diffuser/valve outlet (m/s)K = the diffuser coefficienth = the height of the slot (m)

The velocity at the cross section of the air streamwill be

y = vertical distance from the central axis (mx = distance from the diffuser/valve (m)v = velocity at distance y (m)vx = centre velocity at distance x (m/s)

Theory

93|

Theoretical calculation of the diffuser coefficient

i=impulse factor indicating impulse dissipation at point where air is blown in (i < 1)ε = contraction factorCb = turbulence constant (0.2 - 0.3 depending on type of diffuser or valve)

Practical calculation of the diffuser coefficient The measurement values (vx / v0) and (x / √ Aeff)are plotted into the diagram.

Using the values obtained from the main section of the air stream, a tangent (angle coefficient) is drawn at an angle of -1 (45°).

The formula for the velocity profile

shows that

A line should now be drawn from the intersectionof the angle coefficient and 1 on the y scale toproduce a value for the diffuser coefficient K.

Velocity profileIt is possible to calculate mathematically the air velocity in each part of the stream. To calculate the velocity at a particular distance from the diffuser or valve, it is necessary to know the air velocity at the diffuser/valve outlet, the shape of the diffuser/valve and the type of air stream produced by it. In the same way, it is also possible to see how the velocities vary in every cross section of the stream.

Using these calculations as the starting point, velocity curves for the entire stream can be drawn up. This enables one to determine the areas which have the same velocity. These areas are called isovels. By checking that the isovel corresponding to 0.2 m/s is outside the occupied zone, one can ensure that the air velocity will not exceed this level in the normally occupied areas.

Figure 11. The different isovels of an air stream.

The diffuser coefficientThe diffuser coefficient is a constant which depends on how the diffuser or valve is shaped. It can be calculated theoretically by using the follow-ing factors: the impulse dissipation and contraction of the air stream at the point where it is blown into the room, together with the degree of turbulence created by the diffuser or valve.

In practice, the constant is simply determined by taking measurements on each type of diffuser or valve. The air velocity is measured at a minimum of eight different distances from the diffuser/valve, with at least 30 cm between each measuring point. These values are then plotted into a logarithmic diagram, which indicates the measurement value for the main section of the air stream, and this in turn provides a value for the constant.

The diffuser coefficient enables one to calculate air velocities and to pre-dict an air stream's distribution and path. It must not be confused with the K-factor which is used for such tasks as entering the correct air volume from a directional supply-air terminal device or iris damper. The K factor is described on page 378.

Theory

94 |

Coanda effecta directional supply-air terminal device is fitted close enough to a flat surface, usually the ceiling, the air stream will cling to surface. This is due to the fact that the ambient air will be drawn into the stream, but close to the flat surface, where no new air can flow from above, an underpressure forms instead, and this causes the stream to be sucked to the surface. This is known as the Coanda effect.

Figure 12. The Coanda effect.

Practical experiments have shown that the distance between the diffuser or valve's upper edge and the ceiling ('a' in figure 12) must not be greater than 30 cm if there is to be any suction effect.The Coanda effect can be used to make a cold air stream stick to the ceil-ing and travel further into the room before it reaches the occupied zone.

The diffuser coefficient will be somewhat greater in conjunction with the suction effect than for a free air stream. It is also important to know how the diffuser or valve is mounted when using the diffuser coefficient for dif-ferent calculations.

Non-isothermal airThe flow picture becomes more complex when the air that is blown in is non-isothermal air, in other words warmer or colder than the ambient air. A thermal energy, caused by differences in the air's density at different temperatures, will force a cooler air stream downwards and a warmer air stream upwards.

This means that two different forces affect a cooler stream that is sticking close to the ceiling: both the Coanda effect which attempts to adhere it to the ceiling and the thermal energy which attempts to force it towards the floor. At a given distance from the diffuser or valve's outlet, the thermal energy will dominate and the air stream will eventually be dragged down from the ceiling.

The stream's deflection and point of separation can be calculated using formulae which are based on the temperature differentials, the type of dif-fuser or valve and the size of its outlet, together with air velocities etc.

Figure 13. The air stream's point of separation (Xm) and deflection (Y).

The diffuser coefficient when the Coanda effect isinfluencing the air stream:

The horizontal discharge angle also increases to 30° when the stream is sucked towards the ceil-ing, while the vertical angle remains unchanged(20-24°).

DeflectionThe deflection from the ceiling to the central axis of the air stream (Y) can be calculated using

where∆t0 = the temperature difference between the air stream and the ambient airx = distance from the diffuser/valve (m)vx = centre velocity at distance x (m/s)v0 = velocity at the diffuser/valve outlet (m/s)K = the diffuser coefficientAeff = the diffuser or valve's effective outlet area (m2)

Point of separationThe point where a conical air stream leaves the ceiling (xm) will be:

and for a radical air stream will be

where∆t0 = the temperature difference between the airstream and the ambient airv0 = velocity at the diffuser/valve outlet (m/s)K = the diffuser coefficientAeff = the diffuser or valve's effective outlet area (m2)

After the stream has left the ceiling, a new path can be calculated with the aid of the formula for deflection (above). The distance x is then calculated as the distance from the point of separation.

Theory

95|

Important considerations when dimensioning air supplyIt is important to select and position the directional supply-air terminal device correctly. It is also important that the air temperature and velocity are as required for producing acceptable conditions in the occupied zone.

Correct air velocity in the occupied zoneA specification called 'throw' is indicated for most supply-air equipment in the manufacturer's product catalogue. 'Throw' is defined as the distance from the diffuser or valve opening to the point in the air stream where the centre velocity has been reduced to a particular value, generally 0.2 m/s. A throw of this type is designated by l0.2 and is measured in metres.

Figure 14. The 'throw' concept.

One of the first considerations when dimensioning an air supply system is usually to avoid velocities in the occupied zone that are too high, but as a rule it is not the air stream itself that reaches us there. In the occupied zone we are more likely to be exposed to high velocities in the return air stream: see the figure below.

Figure 15. Return air stream with a wall-mounted diffuser.

It has been shown that the velocity of the return air stream is approximately 70% of the velocity it had when it reached the wall. This means that a diffuser or valve fitted on the rear wall, with an end velocity of 0.2 m/s, will cause an air velocity of 0.14 m/s in the return air stream. This is within the limits for comfort ventilation, which is understood to mean that the velocity should not exceed 0.15 m/s in the occupied zone.

The throw for the diffuser or valve described above is the same as the length of the room, and in this instance is an excellent choice. A suitable throw for wall-mounted ventilation is somewhere between 70% and 100% of the room's length.

Effective penetrationThe most common method for selecting the correct directional supply-air terminal device is to consider the throw l0,2. But since the desired end velocity in the air stream depends on both the room's ge-ometry and the required air velocity in the occupied zone, this can sometimes be rather misleading. Therefore the concept of the air stream's effective penetration has been introduced instead.

The effective penetration is the distance to the point where an end velocity is to be calculated. This can be the distance along the centre of the air stream from the diffuser itself to the furthest point in the room where the supply air is required. For wall-mounted diffusers, this means that the effective penetration is the same as the room's depth, while for ceiling diffusers the penetration is half the room's depth.

The velocity of the return air stream is approximately 30% slower than the air stream's velocity when it meets the wall. If the maximum air velocity in the occupied zone is to be 0.18 m/s, this means that the air stream must have a maximum velocity of0.26 m/s when it meets the wall.

The velocity at the effective penetration depth of a diffuser can be calculated theoretically by using the formula for calculating air velocity.

wherevx = velocity at the effective penetration (m/s)v0 = velocity at the diffuser outlet (m/sK = the diffuser coefficientAeff = the vent's effective outlet area (m2)xv = the effective penetration (m)

This method enables one to dimension the ventila-tion system more precisely than is possible when only using the throw data, and is therefore frequent-ly used in different diffuser selection programmes.

Throw data for isothermal air

Rear-wall diffuser and wall-mounted diffuser: 0.7 to 1.0 x room depth

Ceiling diffuser (supply air blown horizontally) 0.5 x room depth (with rectangular rooms, the distance is calculated to the nearest wall)

Theory

96 |

The penetration of the air streamThe shape of the room can affect the flow picture. If the cross section of the air stream is more than 40% of the cross section of the room, all induction of air in the room will stop. As a result, the air stream will deflect and start to suck in the induction air itself. In such a situation it does not help to increase the velocity of the supply air, as the penetration will remain the same while the velocity of both the air stream and the ambient air will increase.Other air streams, secondary vortices, will start to appear further into the room where the main air stream does not reach. However, if the room is less than three times as long as it is high, it can be assumed that the air stream will reach all the way in.

Figure 16. Secondary vortices are formed at the furthest point in the room, where the air stream does not reach.

Avoid obstaclesUnfortunately, it is very common for the air stream to be obstructed by light fittings on a ceiling. If these are too close to the diffuser and hang down too far, the air stream will deflect and descend into the occupied zone. It is therefore necessary to know what distance (A in the diagram) is required between an air supply device and an obstacle for the air stream to remain unimpeded.

Figure 17. Minimum distance to an obstacle.

Distance to an obstacle (estimate)The diagram shows the minimum distance to the obstacle as a function of the obstacle's height (h in figure 17) and the air stream's temperature at the lowest point.

Theory

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Installing several directional supply-air terminal devicesIf a single ceiling diffuser is intended to service an entire room, it should be positioned as close to the centre of the ceiling as possible, and the total surface should not exceed the dimensions indicated in Figure 18 below.

Figure 18. A small room ventilated by a single ceiling diffuser.

If the room is larger than this, it usually has to be divided into several zones, with each zone ventilated by its own diffuser.

Figure 19. A large room ventilated by several ceiling diffusers.

A room which is ventilated by several wall-mounted diffusers must also be divided into several zones. The number of zones is determined by the requirement to ensure sufficient distance between the diffusers to prevent the air streams affecting each other. If two air streams mix together, the result will be one stream with a longer throw.

Figure 20. A large room ventilated by several ceiling diffusers.

Dimensioning with several ceiling diffusersA large room has to be divided into several zones. The maximum dimension for each zone is 1.5 x the room's length (A), as long as this does not exceed 3 x H (see figure 18).

The appropriate throw is 0.5 x C, where C = the distance between two diffusers, (see figure 19).

ExampleA large room (see figure 19) has the following dimensionsH = 3 mA = 4 mB = 16 m

1) How many zones should the room be divided into?

2) What will be distance be between the diffusers?

1) The maximum size for each zone is 1.5 x A = 6 m, which means that the room should be divided into three zones, each 5.33 m long.

2) If the diffuser is placed in the centre of each zone, the distance (C) will be 5.33 m.

Dimensioning with several ceiling diffusersThe smallest distance between two wall-mounted valves or diffusers (D in figure 20) is 0.2 x l0.2.

The appropriate throw is between 0.7 and 1.0 x A, where A = the depth of the room.

ExampleA room which is 5 m deep is ventilated from the rear wall by means of diffusers with a throw of 4 m.

1) What distance should there be between two diffusers?

0.2 x l0.2 = 0.2 x 4 = 0.8 m

1) There should be 80 cm between two diffusers

Theory

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Blowing in warm airBlowing supply air horizontally from the ceiling works excellently for most rooms, including those with very high ceilings. If the supply air is above ambient temperature and also used to heat the premises, practical experi-ments have shown that this works well in rooms with ceiling heights of no more than 3.5 metres. This assumes that the maximum temperature difference is 10-15°C.

Figure 21. Blowing supply air horizontally from a ceiling diffuser.

In very high rooms, however, the supply air has to be jetted vertically if it is also used for heating. If the temperature difference is no more than 10°C, the air stream should flow down to approximately 1 metre above the floor in or-der to produce a satisfactory evenness of temperature in the occupied zone.

Figure 22. Supply air blowing vertically from a ceiling diffuser.

Theory

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Blowing in cold airWhen supplying air that is colder than the ambient air, it is particularly important to make use of the Coanda effect to prevent the air stream from falling down into the occupied zone too early. The ambient air will then be sucked in and mixed more effectively, and the temperature of the air stream will have a better chance to increase before it reaches the occupied zone.

If the sub-ambient-temperature air is directed along the ceiling in this way, it is also important that the air stream velocity is high enough to ensure that there is sufficient adherence to the ceiling. If the velocity is too low there is also a risk that the thermal energy will push the air stream down towards the floor too early.

At a certain distance from the supply-air diffuser, the air stream will in any case separate from the ceiling and deflect downwards. This deflection occurs more rapidly in an air stream that is below the ambient temperature, and therefore in such cases the throw will be shorter.

Figure 23. The difference between the throws of isothermal and non-isothermal air streams.

The air stream should have flowed through at least 60% of the room's depth before separating from the ceiling. The maximum velocity of the air in the occupied zone will thus be almost the same as when the air supply is isothermal.

The method for calculating where the air stream will separate from the ceil-ing is explained in the paragraph headed 'Non-isothermal air' on page 454

When the supply air is below ambient temperature, the ambient air in the room will be cooled to some extent. The acceptable degree of cooling (known as the maximal cooling effect) depends on the air velocity require-ments in the occupied zone, the distance from the diffuser at which the air stream separates from the ceiling, and also on the type of diffuser and its location.

In general a greater degree of cooling is accepted from a ceiling diffuser than a wall-mounted diffuser. This is because the air from a ceiling diffuserspreads in all directions, and therefore takes less time to mix together with the ambient air and to even out the temperature.

Correction of throw (estimate)This diagram can be used to obtain an approximate value for the throw of non-isothermal air

l0.2 (corrected) = k · l0.2 (isothermal air)

Maximum acceptable cooling effectA rule of thumb for the maximum acceptablecooling effect (Qmax) is:

Supply air blown from rear wallQmax = 20 - 40 W per m2 floor surface at ∆t 8K

Supply air blown from ceilingQmax = 60 - 100 W per m2 floor surface at ∆t 12K

Theory

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Selecting the correct supply-air terminal deviceA supply-air terminal device for ventilation by diffusion can be fitted on either the ceiling or the wall. Diffusers are often equipped with nozzles or perforations which facilitate the admixture of ambient air in the air stream.

Nozzle diffusers are the most flexible devices because they allow individ-ual fitting of each nozzle. They are ideal for supplying air that is well below ambient temperature, particularly if they are fitted in the ceiling. The throw pattern can be altered by turning the nozzles in different directions.

Perforated diffusers have a positive effect where the air stream tempera-ture is significantly below that of the ambient air. They are not as flexibleas nozzle diffusers, but by shielding off the air supply in different direc-tions it is still possible to change the distribution pattern.

Wall-mounted grilles have a long throw. They have limited possibilities for altering the distribution pattern, and they are not particularly suitable for the supply of air that is below ambient air temperature.

The nozzles on the new Sinus series have been specially designed to provide the fastest possible mixing of supply air with ambient.

Table 3. Comparison of the different types of directional supply-air terminal device.

Theory

AAE ..................................... ...........................................................22

AJD ..................................... ...........................................................66

AL ....................................... ...........................................................21

BBalance-E ........................... ..........................................................12

Balance-S ........................... ..........................................................13

BHC ................................................................................................20

CCRS .................................................................................................56

CRSP ...............................................................................................57

CRS-T ..............................................................................................46

EEFF ..................................................................................................14

Elegant-AT .....................................................................................38

Elegant-VE .....................................................................................16

Elegant-VI ......................................................................................18

Elegant-VS .....................................................................................17

Elegant-VT .....................................................................................19

HHella-A ...........................................................................................37

Hella-A-PB.....................................................................................83

IIGC ..................................................................................................79

IGK ..................................................................................................80

IKD ..................................................................................................64

JJSR ..................................................................................................67

KKonika ............................................................................................54

Konika-A ........................................................................................55

Kvadra............................................................................................45

LLPS .......................................................................................... 68-69

NNOVA-A ................................................................................... 27-28

NOVA-C ..........................................................................................42

NOVA-D .........................................................................................40

NOVA-E ..........................................................................................41

NOVA-F ................................................................................... 33-34

NOVA-L ................................................................................... 29-30

NOVA-R................................................................................... 31-32

OOVE.................................................................................................24

OVR ................................................................................................25

OVX ................................................................................................26

PPER ......................................................... .......................................82

PRG ........................................................... ....................................81

RRDA ................................................................................................70

RPK-R .............................................................................................71

RSK .................................................................................................76

SSFD .................................................................................................39

Sinus-A...........................................................................................51

Sinus-BR ........................................................................................35

Sinus-BS ........................................................................................36

Sinus-C ...........................................................................................62

Sinus-C/T .......................................................................................63

Sinus-DC ........................................................................................43

Sinus-DR ........................................................................................44

Sinus-F ...........................................................................................53

Sinus-G ..........................................................................................52

SPI ..................................................................................................72

SPI-F ...............................................................................................74

SPM ................................................................................................73

SPM-F ............................................................................................75

TTFF ..................................................................................................15

TSD .................................................................................................65

TSF..................................................................................................49

TSK .................................................................................................59

TSO .................................................................................................50

TSP .................................................................................................61

TSR .................................................................................................60

TST ..................................................................................................58

VVK ...................................................................................................78

VKK.................................................................................................77

VTK .................................................................................................23

VVK ................................................................................................83

VVKN ..............................................................................................47

VVKR ..............................................................................................48

Theory ..................................................................................84-100

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