Air Diffusion
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Air diffusion and comfort Compulsor Small grilles Indoor grilles Ceiling diffusers Slot diffusers Swirl diffusers Special diffusers External louvres

Components of Characteristic Selection of comfort sizes diffusers AG/AN 280 -290 AN 280 TP Plenums pour TechLined 280 AN 290 p. 146 AO 290 p. 147 Porte filtre p. 148 AN 290 TP p. 149 Serie 200 p. 151 TechLined 290 p. 160 Alphabetical Alphabetical RAL colours index by index by References abbreviations description

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The Subsidiaries Europe Belgium Please contact our French agency: Aldes Nancy 55, impasse Henri Becquerel Zone Industrielle - 54710 Ludres, France Tel: +33 (0)3 83 25 79 79 Fax: +33 (0)3 83 25 78 81 ALDER VENTICONTROL Polígono Industrial Prado Overa C/ Puerto Pajares, 29 28919 LEGANÉS (MADRID) Tel: +34 91 428 20 12 Fax: +34 91 746 31 32 ALDES IRELAND 31 Fincairn road Londonderry BT47 3LD, Northern Ireland Rep. of Ireland: Tel: +353 833 738 801 Fax: +353 152 611 52 Northern Ireland: Tel: +44 786 546 0164 (for UK) Aldes Head Office 20, boulevard Irène Joliot Curie F- 69694 Vénissieux Cedex –...

Innovating, the mission of a leader. Improving the quality of the air we breathe inside buildings to improve our quality of life is not only a dream, it is also a marvellous company project, which all Aldes employees have been adhering to since 1925. And if Aldes is today leader in its sector of activity, the orientation taken by the Group has always used the same guideline: innovation! From single-family and multi-family Housing to Commercial Premises, Aldes has developed 5 business activities: • Ventilation • Temperation® • Centralised Vacuum Cleaning • HVAC components • Smoke extraction...

Aldes without borders. Air has no border. The need to breathe air of high quality is universal. That of energy performance in buildings is just as important too. Thus, the Aldes Group, via the intermediary of a vast sales network, exports its know-how to more than 100 countries in Europe, Africa, the Middle East, Asia and America. In total, there are over one thousand staff who participate in the Aldes Aldes’ Subsidiaries success story throughout the world. Aldes is involved in most large scale projects around the world. We could quote numerous references such as the Twin Towers in Kuala...

The Aldes Services From the diagnosis of the project to maintenance of the installation, Aldes, in addition to its training programmes, DESIGN proposes services to accompany those who intervene PRODUCTION in their specific mission and at each stage in order to encourage MAINTENANCE the smooth running of the systems. For indoor air quality, comfort and safety of the occupants, there are 4 families of services available: DIAGNOSIS Diagnostics aid. In both new construction and renovation, Aldes places its know-how at your disposal in terms of aeraulics to help you analyse Measurement devices...

Training at Aldes, Meet the new requirements of your trade in complete serenity Aldes Training offers you suitably adapted courses concerning the technical and regulatory developments in your activity. Specialised trainers. A dedicated team of trainers ensures you have the technical training that is adapted to your requirements! High level technical resources. Aldes Training offers you courses with a practical dimension, thanks to the real life handling of products and by recreating site conditions. Installing. Maintaining and replacing. Designing. Maintenance and cleaning of CMEV/ CMEV for...

election Guide

Components of comfort - p 10 Characteristic sizes - p 13 Selection of diffusers - p 17

Components of comfort Air diffusion and comfort Generality Designing an air diffusion system means first making the right selection in order to guarantee comfort. Comfort depends on three main components : • The thermal component, • The aeraulic component, • The acoustic component. The thermal and aeraulic components These first two represent the area covered by the NF EN ISO 7730 standard, which specifies : • oom temperatures, according to the activity and r cladding, • discomfort caused by drafts, • the feeling of warm or cold walls, • tolerance of vertical temperature gradients....

Components of comfort The ASHRAE recommendations in terms of acoustic pressure (sensation perceived by the occupant) according to the use of the premises, provides overall comfort. The level of acoustic pressure in an area depends on the power levels (noise emitted by sound sources)  : • from the diffuser (s) , • quipment operating ahead of it/them (air conditioner, e air processing unit, etc...) , • and sound sources in the premises. Next the attenuation in the premises is integrated into the calculation, to provide an overall acoustic pressure level. Level of acoustic presure (Lp)  :...

Components of comfort dB to add at the highest sound level As an initial approximation, the following tools can be used to select the terminals. In the ALDES documentation, the acoustic performance of the diffusion terminals is expressed in power levels Lw (NR). Difference of the sound levels to add (dB) Addition of identical sound levels Number of sources Increase of noise level Constant of the premises m SABINE Rapid determination of the acoustic Addition of two different sound levels 3 criteria Distance of the source of noise. Example: Dimensions of the premises : L x B x H = 8 x 4 x 3.1...

Characteristic sizes The area of occupation This is the "user" zone for the premises, situated 30m from the walls and between 1.8 to 2 metres high. The tables of the characteristic sizes of the diffusers qualifies all of the air diffusion and premises treated. Characteristic area of the terminal, determined by the ratio of the air flow Qv (calibrated and known) to the speed of passage Vk (m/s), measured in accordance with the standard ISO EN 12238 Speed measured by passage of air at the level of the final unit Throw or axial distance between the diffuser and the envelope (all of the points...