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MSA Diffuser - 12 Pages

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Catalogue excerpts

Ceiling diffuser Model MSA Description, Areas of application and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method of Operation and Aerodynamic Data . . . . . . . . . . . . . . . . . . . . . . . . . . Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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NAD Klima Ceiling diffuser Description, Areas of application and Benefits Type MSA is an adjustable ceiling diffuser with a square front plate and integrated, parallel slot sections with eccentric cylinder of ABS and straight- ening profiles. The diffuser can be used in both continuous and open ceilings. The ability to rotate the eccentric cylinder, even after installation, makes it possible to achieve any desired type of Diffuser type MSA can be adapted as required to the prevailing room condi- tions and thus makes it possible to achieve just about any desired type of jets, from bundled wide-angle...

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NAD Klima Ceiling diffuser The diffuser MSA consists of a square front plate with slotted rails arranged in parallel with eccentric drums made of ABS insereted in them with integrated rectifiers. The diffuser is mounted on a plenum. The front plate is secured by a concea- Only the DN 612 has a different faste- ning configuration; 6 screws are distri- buted over the periphery of the front Subject to technical changes.Version 13 / 08/2012

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Ceiling diffuser MSA with plenum Holes for hanging : 4 x Ø 6.3mm 50 mm Damper (optional) perforated plate Nominal size * The dimensions determined according to an installation in suspended ceiling (603 X 1213) Hamburg Community Centre, , Germany Subject to technical changes. Version 22 / 08 / 2012

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Ceiling diffuser Method of operation and Aerodynamic data Method of operation Horizontal airflow, 1-way (DIW) This unidirectional airstream diffusion (right or left) is obtain by setting all drums to position 21 (or 65 for the other direction) A ceiling stream under approx. 45° with high induction will be produced. This setting is especially well-suited for heating and cooling in rooms with a heights up to 3 m. Horizontal airflow, diverging (DVF) If all the drums of one half of the diffuser are set in position 21 and the drums of the other half to position 65, then you get two separate discharge...

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Vertical airflow (DVV) Setting all drums to position CD will create a vertical airflow with a good level of induction. Due to the square form of the diffuser, a rectangular airflow profile develops very quickly that reaches great penetration depths. This setting is especially well suited for large volume flows and ceiling heights up to 5 m. Ceiling diffuser Projected airflow (DVL) The drums in the individual slots are directed against one another in position 1A and F6. As a result, at first two horizontal airstream formally develop, then flow into one another at the center of the diffuser and...

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Ceiling stream rating The acoustic power level and pressure losses stated apply for undisturbed oncoming flow with the damper set to “Open“ . When the damper is set to “Shut“, the pressure loss is increased by a factor of 1.8 and the acoustic power level is increased by 4 dB. The velocities given apply to the “diffuse ceiling stream“. For the setting “ceiling stream, diverging“ multiply the figures by a factor of 1.7 and for the setting “One-sided ceiling stream“ by a factor of 2.0. DN 500 Attention : Acoustic power level dB(A) = NR + 5. The absorption of the room is not considered. DN 600 1 Air...

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Ceiling diffuser Critical airflow distance with cooling Specifications : room height: H = 3.0 m . volume flow/diffuser: V0 = 580 m3/h max. cooling: ∆T0 = - 10°C max. air velocity at height of 1.8 m: . V max = 0.25 m/sec diffuser size : DN600 1 Requirements : 1. . Sound power level LWA 2. Pressure loss 3. Minimum clearance between two diffusers 4. Critical airflow distance (displacement of airflow from ceiling after cooling) Subject to technical changes. Version 25 / 02 / 2013 Critical airflow distance xcrit [m] Critical airflow distance xcrit [m] For the setting “ceiling stream, diverging“ multiply...

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Ceiling diffuser 1 - Description and physical characteristics 1.1 Square ceiling air diffuser MSA with slot profiles arranged parallel to one another, front panel made from galvanneal steel 22 gauges, slot profiles with eccentric drums made from ABS (matt black or white), adjustable. 3.1 The diffuser is complete with a plenum box from the manufacturer. The plenum made from galvanized steel 24 gauges and should include a perforated plate. Plenum supported at each corner and the input at side or above the plenum. The interior borders of the plenum will be sealed with silicone. 1.2 Eccentric drums...

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Ceiling diffuser Nominal size Outer size Diffuse standard 21/56 Diffuse wall BC / 65 Diffuse height AB / EF Diverging flow 21 - 65 Diverging wall BC - 65 Diverging vertical CD Diffuser vertical CD projected airflow Diffuser 1 way = White drums (RAL 9003) = Cream drums (RAL 9010) = Black drums = Without drums 9003 = White 9010 = Cream _____ = RAL colour * (write the number of the colour) S = Plenum with connection piece on the side T = Plenum with connection piece on the top X = Without plenum X = Without insulation I = With acoustic insulation (plenum only) F = With fireproof insulation and fireproof...

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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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