Swirl diffuser VSKA. Product facts. Quick selection. Swirl diffuser VSKA. Connection box ATTB. Product code example:

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1 VSKA are supply air diffusers designed for ceiling mounting. The design of the air deflectors and discharge outlets causes the air discharged by the diffuser to mix with the air in the premises (high induction rate). This provides an excellent indoor climate, even when the temperature of the supply air is appreciably below the room air temperature. VSKA has adjustable air deflectors. The diffusers are shown without, with insulated and uninsulated connection box. VSKA has an adjustable slot of mm. Quick selection VSKA without slot, with insulated connection box ATTB-aaa-bbb-1-0 at Pa Air diffuser Connection ATTB Air flow l/s (m 3 /h) at sound level inlet mm outlet mm db db db VSKA (137) VSKA (173) VSKA ( VSKA (371) 122 VSKA (497) 17 - = outside working area. VSKA without slot, with uninsulated connection box ATTB-aaa-bbb-0-0 at Pa Air diffuser Connection ATTB Air flow l/s (m 3 /h) at sound level inlet mm outlet mm db db db VSKA (94) VSKA (11) 49 VSKA (184) 9 VSKA (6) 83 VSKA (396) 127 VSKA (497) 17 - = outside working area. Product facts Good sound attenuation. Easy to assemble. Easy to balance. Adjustable slot for greater air flows. False ceiling plate, available for size 160 and 0. s 2-0 are adapted for false ceiling. Made from hot-dip galvanized steel sheet. Powder coated in white colour RAL sizes. Connection box ATTB Measurement and adjustment damper. The damper is easily removable without changing the settings. Approved for cleaning. K-factors on measurement hoses. Product code example: -2 with connection box ATTB Fläkt Woods 3317 GB

2 Air flow, zone length, throw, pressure drop, sound level with connection box, without slot Zone length and throw Storleksbeteckningen i zon- och kastlängdsdiagrammet nedan anger luftspridarens anslutning i mm. l 0,2, m , L, m q, m 3 /h , 1 160/0 2/31/0 0 Uninsulated box = 0, Insulated box = 1 Diffuser connection in mm Duct connection in mm VSKA-1 + ATTB % VSKA ATTB % 0 VSKA ATTB % VSKA-0 + ATTB % VSKA-0 + ATTB % More technical data can be found in our selection tool WinDon on the Internet at Fläkt Woods 3317 GB

3 Air flow, zone length, throw, pressure drop, sound level VSKA-2 + ATTB VSKA-2 + ATTB % % 1 1 VSKA-31 + ATTB VSKA-31 + ATTB % 0 % 0 VSKA-0 + ATTB VSKA-0 + ATTB % VSKA without connection box and without slot % Fläkt Woods 3317 GB

4 Acoustical data, dimensions and weights Sound power level VSKA w.o. slot with insulated connection box k 2k 4k 8k Hz VSKA-160+ATTB VSKA-0+ATTB VSKA-2+ATTB VSKA-31+ATTB VSKA-0+ATTB Dimensions and weights A C VSKA w.o. slot with uninsulated connection box k 2k 4k 8k Hz VSKA-1+ATTB VSKA 160+ATTB VSKA 0+ATTB VSKA 2+ATTB VSKA 31+ATTB VSKA 0+ATTB S S = 0 or mm 70 B ØD 9 4 VSKA w.o. slot and w.o. connection box Hz VSKA VSKA VSKA VSKA VSKA VSKA Tolerance +/ A B ØD C Opening W, kg , , , , , ,3 9 80, ,3 9 80, ,3 9 80,3 Connection box ATTB Min K 12 Sound attenuation VSKA w.o. slot with insulated connection box k 2k 4k 8k Hz VSKA-160+ATTB VSKA-0+ATTB VSKA-2+ATTB VSKA-31+ATTB VSKA-0+ATTB L B VSKA w.o. slot with uninsulated connection box k 2k 4k 8k Hz VSKA-1+ATTB VSKA-160+ATTB VSKA-0+ATTB VSKA-2+ATTB VSKA-31+ATTB VSKA-0+ATTB VSKA w.o. slot and w.o. connection box Hz VSKA VSKA VSKA VSKA VSKA VSKA ØD1 80 ØD2 ød1 ød2 H L B K W, kg H Fläkt Woods 3317 GB

5 Air stream deflection, material, product code Air stream deflection without slot with slot Installation, adjustment and maintenance Instructions for installation, balancing and care are described in detail in our instructions, which are supplied with every product. The instructions are also available on the Internet at Technical data and dimensioning For complete dimensioning and for cooling requirement calculations, please refer to the WinDon product selection program. This program with a module for cooling requirement calculations can be found on the Internet at Adjustable pattern of diffusion VSKA has adjustable air deflectors and can be adjusted as follows Product code Swirl diffuser (complete) 1, 160, 0, 2, 31, 0 Connection box Duct connection in mm (aaa) Diffuser connection in mm (bbb) VSKA-aaa ATTB-aaa-bbb-c-0 Execution and function VSKA are quiet supply air diffusers designed for ceiling mounting. The design of the air deflectors and discharge outlets causes the air discharged by the diffuser to mix with the air in the premises (high induction rate). This provides an excellent indoor climate, even when the temperature of the supply air is appreciably below the room air temperature. VSKA has adjustable air deflectors. The air diffuser is supplied with a separate diffuser plate and transfer box. The measurement hose from the measurement damper in the ATTB connection box is very easily accessible inside the diffuser. This facilitates measurement and balancing. Connection box ATTB has a combined measurement and balancing damper with low noise generation, which is easily removable without changing the settings. The connection box is available in two executions, insulated and uninsulated. The connection box can be connected directly to a duct bend, but different k-factors are applicable for different installation alternatives. Material and surface finish Both the diffuser, including the connection piece, and the connection box are made from hot-dip galvanized steel sheet. The devices are powder-coated for a high surface finish and good impact and scratch resistance. Standard colour RAL-90, gloss, equivalent to white NCS S 02-Y. Other colours on request. The adjustable air deflectors are made of black plastic material. Type (c) 0 = Uninsulated (-1, 1-160, 160-0, 0-2, 2-31, 31-0) 1 = Insulated (-160, 1-0, 160-2, 0-31, 2-0) Accessories False ceiling plate for size 160 and 0 (diffuser plate 39 x 39) Swirl diffuser plate (adjustable air deflectors) swirl diffuser plate, mm 2, 39, 6 air diffuser plate air diffuser och 0 6 2, 31 and 0 UTKZ VSKZ-01-aaa Fläkt Woods 3317 GB 06.06