SV-2, SV-1, AVS, AVSL, SI Grilles

Transcription

1 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 351 SV-2, SV-1, AVS, AVSL, SI Grilles SV-2 SV-1 47 (H-17) x (W-17) (H-12) x (W-12) AVS, SI AVSL S SV, AVS, AVSL and SI grilles are designed for use as supply air devices for e.g. in offices and commercial premises. Tey are also suitable for exaust and transfer air and ave adjustable spread patterns and trows. Te grilles wic are intended for mounting on a wall, on te floor, on a window sill or in te ceiling, can be completed wit mounting frame K or connection box TG/TGE, wic as a new and silent measurement damper. As accessory tere is also adjusting device S wic makes it possible to adjust te air flow. Quick-selection Grill model Air flow range l/s (m 3 /) at sound level 25 db(a) 30 db(a) 35 db(a) SV-n-aaa ( ) SV-n-aaa ( ) SV-n-aaa ( ) SV-n-aaa ( ) SV-n-aaa ( ) SV-n-aaa ( ) AVS-aaa ( ) AVS-aaa ( ) AVS-aaa ( ) AVS-aaa ( ) AVS-aaa ( ) AVS-aaa ( ) SI-aaa ( ) SI-aaa ( ) SI-aaa ( ) SI-aaa ( ) SI-aaa ( ) SI-aaa ( ) Product facts Grilles Low sound level Can be mounted witout mounting frame Easy to adjust Product code example: Grille SV Connection box supply air TG A Connection box exaust air TGE B Mounting frame K Adjusting device S Fläkt Woods FIFLO 4823 GB

2 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 352 SV-2, SV-1 Dimensioning Air flow, pressure drop, sound level α L p10a db(a) L 0,3 0,67 x Heigt H (mm) Widt W (mm) W H 300 free mounting b b ~0.25 x L 0.2 α= 0 o 0.60 x L 0.2 α= 45 o 0.70 x L 0.2 α= 60 o 1.20 x L 0.2 α= 90 o ~ 0.06 x L 0.2 ~0.1 x L 0.2 Exaust air Te diagrams are valid for supply air. Wen used for exaust air te sound level grows approx. 5 db and te pressure drop falls wit 10%. Supply air Wen using cilled air, recommended eigt H is < 200 mm and max.cilled air t = approx. -5 C. Increase in sound level and pressure drop caused by back blades: H > 800 L p10a(tot) = L p10a + L α p t(tot) = k α x p t v = 0,7 x Wen connection box TG or TGE is used, see acoustical and pressure data for eac product. Fläkt Woods FIFLO 4823 GB

3 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 353 AVS Dimensioning Air flow, pressure drop, sound level (m) p t (Pa) L p10a db(a) L 0,3 0,67 x Heigt H (mm) Widt W (mm) W b ~0,25 x Exaust air Te diagrams are valid for supply air. Wen used for exaust air te sound level grows approx. 12 db and te pressure drop falls wit 10%. H 300 ~0,06 x Supply air Wen using cilled air, recommended eigt H is < 200 mm and max.cilled air t = approx. -5 C. free mounting H > 800 v = 0,7 x ~0,1 x Wen connection box TG or TGE is used, see acoustical and pressure data for eac product. Fläkt Woods FIFLO 4823 GB

4 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 354 SI Dimensioning Air flow, pressure drop, sound level α (m) q v (l/s) p t (Pa) L p10a [db(a)] 1 l/s = 3,6 m 3 / L 0,3 ~ 0,67 x Heigt H (mm) Widt W (mm) W b b ~ 0,25 x α = 0 0,4 x 45 0,5 x 60 0,6 x 90 Exaust air Te diagrams are valid for supply air. Wen used for exaust air te sound level grows approx. 5 db and te pressure drop falls by 20%. H < 300 ~ 0,06 x t = 0 C Supply air free mounting Wen using cilled air, recommended eigt H is < 200 mm and max.cilled air t ~ -5 C. H > 800 b ~ 0,1 x t = 0 C Increase in sound level and pressure drop caused by back blades: L p10a(tot) = L p10a + L α v = 0,7 x p t(tot) = K α x p t Wen connection box TG or TGE is used, see acoustical and pressure data for eac product. Fläkt Woods FIFLO 4823 GB

5 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 355 Dimensions, installation Dimensions grilles (H+24) x (W+24) 20 (H+24) x (B+24) 20 SV-2 SV-1 SI (H+46) x (W+46) (H+29) x (W+29) Mounting frame K 40 Adjusting device S (H 4) x (W 4) (H 17) x (W 17) (H 12) x (W 12) 8 5,5 7, (H+32) x (W+32) 19 AVS AVSL AVS - 1/15 Installation Grilles SV, SI and AVS are fitted into mounting frame K or plenum box TGR wit springs or screwed directly on te wall or ceiling. If te grille is screwed on te ceiling, tis sould be stated in te order. Te springs are ready in all sizes, screw oles in sizes W>600 or H>300. For dimensions H and W see below eading Dimensioning on previous pages. Placement SV-2 SV-1 AVS AVSL AVS-1 SI Wall, supply and exaust Ceiling, supply and exaust Window sill, supply Floor, supply and exaust Fläkt Woods FIFLO 4823 GB

6 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 356 Adjusting device S Adjusting device S, supply air Adjusting device S, exaust air open open p t, Pa = p s L pa10, db(a) p t, Pa = p s L pa10, db(a) v k, m/s Sound level of adjusting device: Velocity of te face area: v k = Lp10As = Lp10A + KA q v W x H [ ] m 3 /s m 2 Total sound level of grille and adjusting device: Difference of sound levels between grille and adjus db ting device Addition to te iger sound pressure level v k, m/s db Influence of te face area (A k ) to te sound pressure level: A k = W x H 0,03 0,06 0,12 0,2 0,4 m 2 K A ± db Definitions q v air flow (l/s) p t total pressure drop (Pa) L p10a sound pressure level wit 4 db room attenuation (10 m 2 sab) [db(a)] L p10as sound level of adjusting device [db(a)] L 0.2 trow corresponding final velocity 0.2 m/s (m) α adjustment angle of te back blades ( ) k a factor of te rise of pressure drop caused by te adjustment of te back blades L a te rise of te sound pressure level caused by te adjustment of te back blades (db) t temperature difference between te supply air and te room air ( o C) v k front face velocity (m/s) A k front face area (W x H) (m 2 ) K A increase to te sound pressure level caused by A k (db) Calculation example 1. Te required isotermal supply air q v to room is 200 l/s. 2. Trow suitable for te size of te room is L m. 3. Required sound pressure level in te room L p10a = 50 db(a). 4. Ensure tat te duct system can be adjusted. Solution: 1. SV-2-600x200 is selected (page 146). 2. Wit angle α = 60 o of te back blades is L m, L p10a(tot) = 26 db(a) and p t(tot) 2 x 2 = 4 Pa. 3. Allowed sound pressure level L p10a, paying attention to te real room attenuation, te influence of te number of supply and exaust devices etc., is f. e.g. 44 db(a). 4. Wen using te adjusting device S te adjustment is 0.2 m v k = 3 /s 1.7 m/s ; A k = 0.12 m 0.6 x 0.2 m 2 2 K A = +8 db Allowed sound pressure L p10a = 44-8 = 36 db(a). Difference of sound pressure levels of te grille and adjusting device =36-26 > 10 db (te grille does not raise te total sound pressure level in tis case). Te adjustment range acieved wit te adjusting device p t 35Pa. Te adjustment range acieved wit connection box TG is 200 Pa in tis case. Fläkt Woods FIFLO 4823 GB

7 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 357 Construction, material, descriptive text, product code Construction SV-2: orizontal, directional front blades (flow pattern can be stepplessly directed upwards and downwards) and vertical directional back blades (flow pattern and trow can be regulated steplessly) SV-1: front blades only SI: orizontal fixed front blades in demountable louvre assembly (flow pattern can be directed 8 or 18 angle upwards and downwards by turning te blade section) and vertical directional back blades SI-1: front blades only (exaust air) AVS: orizontal fixed front blades AVS-1: front blades only witout frame AVSL: firm floor grille equipped wit mounting frame, blades as in AVS AVS... AVSL/15 :as above, but blades at 15 angle Grilles, larger tan widt W > 1200 and/or eigt H > 500 are available wit modular construction. In case of modular construction te dimensions of te installation wole BxH (mm) sould be stated. Material and surface finis Te grilles are manufactured from aluminium profiles. Mounting frame K and adjusting device S are manufactured from ot galvanized seet steel SS 1151 and meets te requirements of environmental class M2 according to VVS AMA 98. Te regulation blades are manufactured from aluminium. Te devices are powder coated for a ig surface finis and good impact and scratc resistance. Standard colour Wite RAL 9010, gloss 70, equivalent to NCS S 0502-Y. Installation,adjustment and maintenance Grilles SV, SI and AVS are fitted into mounting frame K or plenum box TGR wit springs or screwed directly on te wall or ceiling. If te grille is screwed on te ceiling, tis sould be stated in te order. Te springs are ready in all sizes, screw oles in sizes W>600 or H>300. If screw oles are needed for a smaller grille, tis sould be stated in te order. Te countersunk screws. 3,5 mm are not included in te delivery. For te installation metods of grilles AVS-1 and AVSL see te dimension drawings. Instructions for installation, adjustment and maintenance are described in detail in our tecnical instructions also available on te Internet at: Tecnical data and dimensioning For complete dimensioning, please refer to te WinDon product selection program. Tis is applicable especially wen connection box TG/TGE is in use because device and box is not accounted for in te catalogue material. Tis program can be found on our CD or on te Internet at: Descriptive text Grille e.g. SV-2 in size 500 x 100 mm manufactured by Fläkt Woods. Product code Grille (supply, exaust, transfer air) SV-2-aaa-bbb SV-1-aaa-bbb AVS-aaa-bbb AVS/15-aaa-bbb AVS-1-aaa-bbb AVS-1/15-aaa-bbb AVSL-aaa-bbb AVSL/15-aaa-bbb Widt, mm Heigt, mm Connection box supply air Lengt of grille connection, mm Heigt of grille connection, mm Connection alternative A = from te side B = from te rear C = from above /from below Connection box exaust air Lengt of grille connection, mm Heigt of grille connection, mm Connection alternative A = from te side B = from te rear C = from above /from below Mounting frame Size, grille Widt in mm Heigt in mm Adjusting device Size, grille Widt in mm Heigt in mm TG-aaa-bbb-c TGE-aaa-bbb-c K-aaaa-bbb S-aaaa-bbb Fläkt Woods FIFLO 4823 GB

8 Grilles SV-2, SV-1, AVS, AVS-L TECHNICAL DATA page 358 Fläkt Woods FIFLO 4823 GB