User Manual for Lindab models including: CCA, Circular Perforated Diffuser, CCA Circular Perforated Diffuser
17 ago 2022 — Comdif CCA is a circular perforated displacement diffuser for freestanding installation. Behind the perforated front.
lindab | we simplify construction Perforated diffuser - circular CCA Dimension H Description Comdif CCA is a circular perforated displacement diffuser for freestanding installation. Behind the perforated front plate, CCA is equipped with individually adjustable nozzles, making it possible to alter the geometry of the near zone. The diffuser can be turned and has a circular duct connection (MF measure), so the diffuser can be connected at the top or bottom. The diffuser is suitable for the supply of large volumes of moderately cooled air. · The diffuser is suitable for the supply of large volumes of air. · The geometry of the near zone can be adjusted using adjustable nozzles. · Plinths can be supplied as accessories. Maintenance The front plate can be removed from the diffuser, making it possible to clean the nozzles. The visible parts of the diffuser can be wiped with a damp cloth. ØA ØD Size 1207 1607 2010 2510 3115 4020 5020 6320 ØA [mm] 250 300 360 400 520 630 730 830 Accessories ØD [mm] 125 160 200 250 315 400 500 630 Can be supplied with plinth. H [mm] 710 710 970 970 1490 2010 2010 2010 Weight [kg] 5,.00 7,.50 13,.0 18,.0 35,.0 58,.0 78,.0 106 Ordering example Product Type Size CCA Order - accessories Plinth: CCAZ - 2 - size aaaa Materials and finish Diffuser: Nozzles: Front plate: Standard finish: Standard colour: Galvanised steel Black plastic 1 mm galvanised steel Powder-coated RAL 9003 or RAL 9010 - white The diffuser is available in other colours. Please contact Lindab's sales department for further information. Lindab reserves the right to make changes without prior notice 1 2022-08-17 lindab | we simplify construction Perforated diffuser - circular Technical data pt [Pa] CCA 150 1207 1607 2010 2510 3115 4020 5020 100 70 6320 50 30 20 15 10 7 5 3 2 30 40 50 70 100 150 200 300 150 200 300 500 700 1000 0.5 1 2 1 2 34 60 55 50 45 40 35 30 25 20 LWA dB(A) 500 700 1000 qV [l/s] 2000 3000 2000 3000 5000 qV [m3/h] 10000 a0.2 [m] 3 45 7 10 b0.2 [m] 5 7 10 15 20 Recommended maximum volume flow. The near zone is given at an under-temperature of -3 K to a maximum terminal velocity of 0.20 m/s. Conversion to other terminal velocities - see table 1, correction of the near zone for -3 K and -6 K respectively. Nearzone Oval diffusion CCA h v vmax Circular diffusion (factory setting) Sound effect level Sound effect level LW [dB] = LWA + Kok Size 1207 1607 2010 2510 3115 4020 5020 6320 Centre frequency Hz 63 125 250 500 1K 2K 4K 8K 8 -1 1 1 -9 -17 -28 -40 10 -1 1 1 -8 -17 -29 -33 10 -1 3 0 -9 -17 -27 -40 7 -1 3 0 -7 -18 -28 -41 13 2 3 -1 -8 -17 -29 -27 13 2 3 -1 -7 -16 -28 -43 7 3 2 0 -6 -16 -19 -17 7 3 2 0 -8 -16 -20 -17 Sound attenuation Sound attenuation L [dB] including end reflection. Size 1207 1607 2010 2510 3115 4020 5020 6320 Centre frequency Hz 63 125 250 500 1K 2K 4K 8K 19 14 5 3 2 1 2 1 16 12 4 1 2 1 2 2 12 8 4 2 3 2 2 2 12 8 5 2 1 1 1 1 11 8 3 2 1 1 2 2 9 6 1 1 1 1 1 1 6 4 1 1 1 1 1 1 5 3 1 1 0 0 0 1 b0,2 a0,2 a0,2 a0,2 2 Table 1 Correction of the near zone (a0.2, b0.2) Undertemperature Ti - Tr -K3 -6K Maximum velocity m/s 0.,20 0.,25 0.,30 0.,35 0.,40 0.,20 0.,25 0.,30 0.,35 0.,40 Mean velocity m/s 0.,10 0.,12 0.,15 0.,17 0.,20 0.,10 0.,12 0.,15 0.,17 0.,20 Correction factor 1.,00 0.,80 0.,70 0.,60 0.,50 1.,20 1.,00 0.,80 0.,70 0.,60 2 Lindab reserves the right to make changes without prior notice 2022-08-17Adobe PDF Library 15.0 Adobe InDesign 15.1 (Windows)