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Swirl diffuser DRS - 16 Pages

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Catalogue excerpts

Thibault-GM Arena, Sherbrooke, Canada

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Swirl diffuser DRS model Description, Areas of application and benefits . . . . . . . . . . . . . . . . . . . . . . . Composition, Method of operation and Aerodynamic data . . . . . . . . . . . Ranges of application / Quick selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Correction factor of air flow for a reading with balometer . . . . . . . . . . . .

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Exhibition Center, Sherbrooke, Canada

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Swirl Diffuser Description, areas of application et benefits The DRS is a high induction swirl air diffuser with a square or circular front plate. It is equipped with embossed air control blades dividing the airflow into many smaller high induction airflows. It can be installed in areas where maximum comfort is required or used for commercial and industrial applications. It can be installed above a gypsum ceiling or in free-suspension. Areas of application -Comfort zone -Offices -Meeting rooms -Big box stores -Systems with constant or variable airflow rates -Recommended for premises with ceilings...

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Swirl Diffuser The different layouts possible with DRS meet many requirements. The variety of sizes available meet the most exacting performance needs. The DRS is installed directly on the air duct via an adapted connector. It can be set up with a square front plate (12"X12" or 24"24") DRS - R - 125 Subject to technical changes. Version 02 / 11 / 2012

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NAD Klima Swirl Diffuser Composition, Method of operation and Aerodynamic data front plate (1) with blades that are integrated into the exit of the diffuser (2).The diffuser is held up by a concea- The blades divide the airflow into numerous single high-induction airflows. The blades integrated into the exit of the diffuser ensure a horizontal air flow even at a slow rate, while Aerodynamic data Minimum space of 2.7 m required under ceiling with speeds not excee- ding 0.25 m/s in occupied zones. Sugject to technical changes. Version 24/04/2012

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NAD Klima Swirl diffuser DRS Ranges of application / Quick selection for DRS I Column relating to all rooms of this height with the same air volume per diffuser. Column in reference to the example The air velocity in the occupied zone is 0.31 m/s (62 ppm). In this case, we recommend choosing the DAL 358 DN 600 high induction swirl air diffuser. Note: Sound absorption of the room is not factored in. To compare with North American values, reduce sound power by -10 dB. - Total air flow in the room : 1550 cfm @ - Initial temperature difference: AT = -10°C Starting with data of ceiling height© and...

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Swirl Diffuser Note: Sound absorption of the room is not factored in. To compare with North American values, reduce sound power by -10 dB. When installed in free suspension, airflow velocities diminish by a factor of 0.7. Pressure lost Distance of the airflow after conjunction y(m) 10 Subject to technical changes. Version 24 / 04 / 2012

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Swirl diffuser Diagrams Critical airflow distance with cooling rating Example Critical airflow distance x crit [m] Critical airflow distance x crit [m] Critical airflow distance x crit [m] Critical airflow distance x crit [m] Critical airflow distance x crit [m] Critical airflow distance x crit [m] Critical airflow distance x crit [m] Specifications : room height: H = 3.0 m . volume flow/diffuser: V0 = 300 m3/h max. cooling: ∆T0 = - 10°C max. air velocity at height of 1.8 m: . V max = 0.2 m/sec Requirements : 1. Diffuser size 2. Sound power level LWA 3. Pressure loss 4. Minimum clearance between...

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Swirl Diffuser Dimensions DRS R Installed to a gypsum ceiling with adapted connector (spigot) Central mounting perfored metal sheet H Adapted connector (spigot) DRS Q Installed to a free-suspension ceiling with adapted connector (spigot) Central mounting perfored metal sheet Adapted connector (spigot) DRS Q Installed with a plenum Damper (optional) * Optional balancing damper. We recommend installing the balancing damper to the plenum in the use cases a gypsum ceiling. DRS R Installed with a plenum - input by the side and output with collar Central mounting balancing* damper * Optional balancing...

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Swirl diffuser Correction factor of air flow for a reading with balometer DRS - DN180 Actual flow at diffuser (cfm) 120 Actual flow at diffuser (cfm) As stated in the manual ALNOR "Appendix B - Flow Capture Hood Resistance", it is recommended by the manufacturer of the instrument to take a reading in air duct and compare it in the diffuser with and without the Balometer to determine the correction factor. To avoid this procedure, we provide you here against the correction factors for all models of the diffuser DRS . Actual flow at diffuser (cfm) For the diffusers DRS DN100 and DRS DN125, the correction...

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1 - Description and physical characteristics 1.1 DRS swirl diffusers are manufactured in 20-gauge satin-finish steel with square or circular front plate. It is equipped with embossed air control blades splitting the airflow into many smaller high-induction airflows. 3.1 The DRS is delivered supplied with an adapted connector or a plenum to stabilize the air. 1.2 The blades that extend into the exit of the outlet cone of the diffuser ensure a horizontal air movement at 360° even when the diffuser is in free suspension. 1.3 The edge of the diffuser is adapted to standard suspended ceilings (24"...

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Swirl Diffuser Nominal size 9003 = white 9010 = cream ____ = RAL color * (write the number of the color RAL) X S P E = Without adapted connector (spigot) and without box = Adapted connector (Spigot) = Plenum with input by side = Plenum with input by side and output with collar Spigot / Plenum X = without insulation I = with acoustic insulation (plenum only) F = with fireproof insulation and fireproof damper (plenum only) X = without balancing damper D = with balancing damper (plenum only) Dimension /plate Notes : Bleu : Standard equipment , in stock. * Write the number of 4 digits of the RAL chart...

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Thibault-GM Sport Centre UQAR, Lévis

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NAD Klima 144, Léger Street, Sherbrooke (Québec), Canada J1L 1L9 • T : 819 780-0111 • 1 866 531-1739 • F : 819 780-1660 • info@nadklima.com

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