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DMAN
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Square 4-way diffuser DMAN Description Square 4-way diffuser for ceiling installation. Circular inlet for direct connection with the flexible duct (even without plenum). No visible connections in the corners thanks to the construction in stamped aluminium sheet. Removable central core to make the access to duct and damper easier. Horizontal launch with Coanda effect. Available with painted aluminium (DMAN) or white (DMANW) finish, also for square plate 595x595 mm (DMAN-Q, DMANW-Q). Construction Plate shells in painted natural aluminum, plate and square plate in painted steel. Finish Painted gloss RAL 9006 (DMAN, DMAN-Q), painted gloss white RAL 9010 (DMANW and DMANW-Q). Accessories DT-7 : butterfly damper (screw adjustmnent). Specifications Square 4-way diffuser for ceiling installation. Circular inlet for direct connection with the flexible duct (even without plenum). Construction in stamped and painted natural aluminium sheet. Removable central core. Horizontal launch with Coanda effect. Painted gloss RAL 9006 (DMAN) finish or white RAL 9010 (DMANW) finish, also for square plate 595x595 mm (DMAN-Q painted RAL 9006, DMANW-Q white RAL 9010). d distance from the wall (with h = 2,7 m.) L^a sound power level (rif. 10-12 W) F.C.R. SpA - Via E. Fermi, 3 - 20092 Cinisello Balsamo (MI) - Italy phone +39 02 61798 1 - fax +39 02 61798 300 - www.fcr.it - fcr@fcr.it

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Key to symbols Installation height Distance between the centre of the diffuser and the wall to which the jet flows Air-flow for single diffuser Pressure drop LWA Sound power level weighted “A” (rif. 10-12 W) Notes The value d has been calculated according to hi to keep the residual velocity in the occupied area within the limit of 0,20 m/s. 2 At the requested air-flow qv, from diagram 2 determine the minimum distance d between the centre of the diffuser and the wall to which the jet flows. 1 At the requested air-flow qv, with the allowed sound power level LWA, from diagram 1 determine the...

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Air-flow calculation Due to possible asymmetries, it is necessary to position the velocity probe to measure vk as shown in the picture. You must employ hot-wire anemometers, taking care that their “window” is turned towards the flow. In each point, you must measure the average velocity in a breaktime of at least 1 minute (average in time). To obtain the air flow, calculate the arithmetic average ṽk of the so measured values. Mounting scheme The diffusers DMAN-Q and DMANW-Q have been expressly designed for installation in standard false ceilings frame with panels 595x595 mm. F.C.R. SpA - Via...

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DMAN 3Pages

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DMAN
3Pages