How To Make A Supply Air Ceiling

Transcription

1 Supply air ceiling General is a supply air ceiling system with adjustable discs. The spread pattern is infinitely flexible and can be adjusted as required without affecting the airflow, pressure drop or sound level. The supply air can be at over- or under-temperature. is particularly suitable for applications where large supply airflows are required without high air velocities in the occupied zone, for example in laboratories, clean rooms, hospitals, catering kitchens and schools. The discs in the figure are arranged in a special pattern. Quick facts 00% flexible spread pattern High induction rate Can be cleaned Diffuser modules 595 x 595 mm Available in alternative colours Va r iz o n air distribution system Included in MagiCAD and CadVent databases Quick guide A I R F L O W - S O U N D L E V E L l/s Size 0 db(a) x x x x CATALOGO LISTINO creazione France Air Italia 0/009 - Ogni diritto di riproduzione riservato

2 Technical description Design The supply air ceiling consists of a number of diffuser modules, equipped with discs, which are installed in a common backing box. The air diffuser modules are also equipped with the VariZon air distribution system to distribute air uniformly. Materials and surface treatment The supply air ceiling is manufactured in galvanised sheet steel. The discs are made of ABS plastic and the VariZon air distribution plates are made of polypropylene. The entire unit is painted with our pure white standard paint, RAL 900. The unit is also available in other standard colours: Dusty grey 707, white aluminium RAL 9006, jet black RAL 9005, grey aluminium RAL 9007 and signal white RAL 900 (NCS 0500). Special version In addition to the standard sizes, this unit can be supplied in special dimensions and with different numbers of discs, etc. is also available in galvanized finish. Please contact your nearest sales office for information. Accessories CRM. Commissioning damper with measuring unit. Planning The unit can be installed freely suspended or integrated in a suspended ceiling. The recommended maximum under-temperature is 5 C. The recommended minimum installation height above the floor is.7 m. Installation The backing box has a number of M8 pop nuts on top and a number of attachment eyes along the sides for suspended installation. The backing box can also be bolted directly to the building structure from inside the box. The diffuser panels are inserted into the backing box at an angle, with the VariZon distribution plates facing the airflow, then laid on the grid. See Figure. Commissioning Commissioning should be carried out using a commissioning damper in the connecting duct system. See catalogue sheets for CRM. Maintenance Clean as necessary with lukewarm water and detergent. Access can be gained to the duct system without tools. The diffuser section is removed in the same way as a normal cassette ceiling. Environment The Declaration of construction materials is available at Figure. Installation. CATALOGO LISTINO creazione France Air Italia 0/009 - Ogni diritto di riproduzione riservato

3 Sizing The sound level db(a) applies to rooms of 0 m equivalent sound absorption area. The recommended maximum under-temperature with a standard discs installation is 5 C. Sound data - - Supply air Sound power level L w (db) (0 m Sabine) Table K OK To calculate the width of the airstream, air velocities in the occupied zone or sound levels in rooms with other dimensions, contact the nearest sales office for information. Mid-frequency (octave band) Hz Size x x x x 50 Tol. ± Sound attenuation L (db) (0 m Sabine) Table L Mid-frequency (octave band) Hz Size x x x x 50 Tol. ± CATALOGO LISTINO creazione France Air Italia 0/009 - Ogni diritto di riproduzione riservato

4 Engineering graphs Supply air Airflow Pressure drop Sound level Affected area The graphs must not be used for commissioning. The db(a) values are for rooms with normal acoustic absorption of db. The db(c) value is normally 6-9 db s higher than the db(a) value. For more accurate calculations, see the calculation template in the chapter on Acoustics in the Technical Information section of this catalogue. - Single - Double p t Pa db(a) 5 p t Pa db(a) l/s m /h l/s m /h 5 l 0, m 5 l 0, m Size designation: x 50 Size designation:. 00 x x x x x x x50 CATALOGO LISTINO creazione France Air Italia 0/009 - Ogni diritto di riproduzione riservato

5 Dimensions and weights Size Weight, kg , , , x 50 68, , x 00 69, x 00 9, x 50 5,0 Figure., dimensions. CATALOGO LISTINO creazione France Air Italia 0/009 - Ogni diritto di riproduzione riservato

6 Order key Product Supply air ceiling system -a -aaaa -bbb -ccc Version: Nom. length, mm: 00, 800, 00, 000 Nom. width, mm: 600, 00 Nom. connection diam., mm: Ø: 50, 5 Rectangular dimensions: 00 x 50, 600 x 00, 600 x 00, 800 x 50 Standard range: x x x x 50 Specification example SD XX Swegon s supply air ceiling system, type, with the following functions: Diffuser modules 595 x 595, equipped with nozzles 00% flexible spread pattern Individually adjustable nozzles (55 mm) made from recyclable ABS plastic VariZon air distribution system Can be cleaned Powder coated in white Backing box that can be cleaned Size: a - aaaa - bbb - ccc xx items CATALOGO LISTINO creazione France Air Italia 0/009 - Ogni diritto di riproduzione riservato