Dimensions Ø U Ød B C Ø E Ø A Description is a circular diffuser with an unperforated adjustable face plate and can be used for both supply and extract air. The diffuser can be switched between horizontal and vertical supply air, and is therefore suitable for the horizontal supply of cooled air or vertical supply of heated air. The can be equipped with accessories of various types in order to achieve optimal function. Installing a diffuser in a plenum box type MB can help to achieve a stable airflow to the diffuser as well as realise the potential for individual adjustment. Damper type B is an unique linear cone damper which allows to use the full operational area (0-0%) and allows to balance with a high pressure drop over the box with low sound generation. Furthermore the construction of the damper gives an accurate and reliable measurement. Damper type C and E are with rotating blade dampers for respectively supply and extract. Typically used in applications that don t require a high balancing pressure in the plenum box. Ød ØA B C ØE ØU* m mm mm mm mm mm mm kg 0 188 60 146 1 0. 1 238 65 180 2 0. 160 288 65 2 5 0.60 0 388 28 72 0 5 1. 2 488 33 82 380 390 1.60 3 588 33 97 490 465 2. 0 7 0 590 6 3.80 * ØU = Ceiling grid opening Dispersal patterns is supplied with vertical supply air as standard. The dispersal pattern can be changed to horizontal supply air by moving the face plate. Vertical supply air. Suitable for both supply and extract air Suitable for horizontal or vertical supply air patterns Plenum box with several damper options Maintenance The face plate can be removed to enable cleaning of internal parts or to gain access to the duct or plenum box. The visible parts off the diffuser can be wiped with a damp cloth. Horizontal supply air. Order code Product aaa Type Connection dim. Ød Ød 0-0 Example: -0 Materials and finish: Grille box: Aluminium Face plate: Galvanised steel Standard finish: Powder-coated Standard colours:ral 9003 and RAL 90, gloss The diffuser is available in other colours. Please contact Lindab s sales department for further information. We reserve the right to make changes without prior notice 1-04-17
Accessories + MB plenum box CAZ - Balancing damper D L x W Ød 1 B Ød 2 H e C MBZ - Extension piece DCZ - Mounting brackets (set) Order code - accessories Product aaa bbb Type Size Example: CAZ-1 Ød 1 Ød 2 B C D e H* L W mm mm 0 0 62 2 78 175-2 3 260 0 1 62 2 78 175-5 3 260 0 160 62 2 78 175-5 3 260 1 1 75 291 78 0-2 376 3 1 160 75 291 78 0-2 376 3 1 0 75 291 78 2-2 376 3 160 160 92 2 78 2-265 9 380 160 0 92 2 78 2-280 9 380 160 2 92 2 78 2-290 9 380 0 0 112 4 78 285-3 565 460 0 2 112 4 78 290-332 565 460 0 3 112 4 78 290-3 565 460 2 2 137 514 118 60 3-380 698 5 2 3 137 514 118 60 3-395 698 5 2 0 137 514 118 60 3-0 698 5 3 3 1 675 118 60 5-460 858 5 3 0 1 675 118 60 4-465 858 5 USING + MBB => ALWAYS USE MBZ * Using accessory MBZ the H dimension will increase: Ød 2 = 0-0 mm => H + mm Ød 2 = 2-3 mm => H +60 mm Ød 2 = 0 mm => H +80 mm Damper options Order code Product MB a bbb ccc d Type MB Damper B = Linear cone damper C = Blade damper supply E = Blade damper extract Duct connection Ød 1 Ø0-3 Diffuser dimension Ød 2 Ø0-0 Function (Only for B damper) S = Supply air E = Extract Example 1: -0+MBB-160-0-S Example 2: -0+MBC-1-0 2 We reserve the right to make changes without prior notice -04-17
Following +plenum box data are valid for MBB-S/-E. For MBC and MBE data, go to www.lindqst.com. Capacity Air flow q v [l/s] and [m 3 /h], total pressure Δp t [Pa], throw l 0.2 [m] and sound power level L WA [db(a)] can be seen in the diagrams. Frequency-related sound power level The sound power level in the frequency band is defined as L WA +K ok. K ok values are specified in charts beneath the diagrams on the following pages. Quick selection, supply air + MBB-S Δp t Pa Δp t Pa duct db(a) db(a) Ød 1 Ød 2 l/s m 3 /h l/s m 3 /h 0 0 26 94 31 112 0 1 126 42 1 0 160 42 1 180 1 1 46 166 54 194 1 160 58 9 68 2 1 0 62 223 75 2 160 160 67 241 81 292 160 0 86 3 5 378 160 2 96 346 121 436 0 0 7 385 127 7 0 2 1 486 160 576 0 3 146 526 177 637 2 2 1 544 183 659 2 3 161 580 2 774 2 0 185 666 2 907 3 3 6 742 263 947 3 0 227 817 9 1112 Sound attenuation Sound attenuation of the diffuser ΔL from duct to room, including end reflection, see table below. + MBB-S/-E duct Centre frequency Hz Ød 1 Ød 2 63 1 2 0 1K 2K 4K 8K 0 0 17 7 19 22 0 1 21 16 6 18 19 18 19 21 0 160 21 16 5 17 18 18 18 1 1 18 13 7 12 19 19 1 160 14 8 19 12 17 17 19 1 0 14 12 6 16 14 16 17 16 160 160 18 17 18 16 18 21 160 0 14 7 19 17 18 19 19 160 2 4 13 14 16 18 0 0 14 7 14 19 16 17 0 2 9 5 14 19 16 17 16 0 3 13 8 4 11 16 16 2 2 16 8 7 16 18 18 18 17 2 3 11 7 6 16 17 17 16 16 2 0 6 5 14 16 3 3 8 9 14 18 18 17 21 3 0 8 8 8 11 16 17 16 19 Throw l 0.2 The throw is specified at a terminal velocity of 0.2 m/s. Diagram below shows throw l 0.2 for horizontal supply air. l 0.2 [m] 8 7 6 5 4 3 2 l 0.2 [m] 1 60 0 1 0 0 0 0 60 0 1 0 0 0 0 900 00 Correction throw l 0.2 for vertical supply air Ød Correction factor 0 3,1 1 2,7 160 2,7 0 2,7 2 2,6 3 2,4 0 2,3 Air jet distribution l b = Distance from the diffuser to the point where there is maximum dispersal. b v = Depth of the air jet on a vertical plane. b h = Width of the air jet on a horizontal plane Horizontal supply air pattern l b = 0,6 l 0,2 Vertical supply air pattern l b lb 0 1 160 0 2 3 0 bv b v = 0,05 l 0,2 l b = 0,7 l 0,2 b h b h = 0,3 l 0,2 We reserve the right to make changes without prior notice 3-04-17
Throw l 0.2 / turning point l 0.0 Throw l 0.2 [m] is specified at a speed of 0.2 m/s. Turning point l 0.0 [m] is specified for +5 K, + K respectively. without box - Supply air Supply air - horizontal 1 0 1 160 0 2 3 0 0 7 60 0 1 0 0 0 0 0 1 0 0 0 0 0 00 00 00 Supply air - vertical l 0.0 [m] 8 7 6 5 4 +5K 0 160 0 2 3 0 1 0 0 1 160 0 2 3 0 3 2 1 l 0.0 [m] 60 0 1 0 0 0 60 0 1 0 0 0 0 00 7 60 0 1 0 0 0 0 0 0 1 0 0 0 0 0 00 00 l 0.0 [m] 8 7 6 5 4 3 +K 0 160 0 2 3 0 2 1 l 0.0 [m] 60 0 1 0 0 0 60 0 1 0 0 0 0 00 4 We reserve the right to make changes without prior notice -04-17
0 + MBB-S - Supply air 1 + MBB-S - Supply air 2 0-0+MBB-0-0-S -1+MBB-1-1-S 2 0 1 1 0 0 5 60 60 80 0 1 0 60 80 0 60 80 0 1 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 12 8 5-7 -8-14 -17-22 K ok 11 9 3-5 -6-14 - -24 2 0 1-1+MBB-0-1-S 0 60 80 0 60 80 0 1 0 0 Hz 63 1 2 0 1K 2K 4K 8K K ok 13 8 3-5 -7-11 - -19 We reserve the right to make changes without prior notice 5-04-17
160 + MBB-S - Supply air 0 + MBB-S - Supply air 2 0-160+MBB-160-160-S -0+MBB-0-0-S 2 0 1 0 1 0 60 80 0 1 1 160 1 0 0 0 0 60 80 0 1 1 160 180 0 2 0 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 11 12 3-7 -7 - - -23 K ok 12 11 1-3 -7 - - -24 2-160+MBB-1-160-S 2-0+MBB-160-0-S 0 1 0 1 0 0 60 80 0 1 60 80 0 1 1 160 80 0 1 0 0 0 1 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 12 8 3-5 -6-11 -17-22 K ok 12 8 1-4 -5 - -18-22 2 0 1 0-160+MBB-0-160-S 2 0 1 0-0+MBB-1-0-S 60 80 0 60 80 0 1 0 0 60 80 0 1 1 80 0 1 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 9 3 1-3 -5-9 - -19 K ok 5 1-4 -5 - -16-6 We reserve the right to make changes without prior notice -04-17
2+ MBB-S - Supply air 3 + MBB-S - Supply air -2+MBB-2-2-S 2 0 1 0 60 80 0 1 1 160 180 0 2 280 0 0 0 0 0 00-3+MBB-3-3-S 2 0 1 0 60 80 90 1 0 2 0 3 0 0 0 0 0 0 12 Hz 63 1 2 0 1K 2K 4K 8K K ok 7 0-2 -6-12 -16-21 Hz 63 1 2 0 1K 2K 4K 8K K ok 4 1-2 -6-13 -17-16 2 0-2+MBB-0-2-S 2 0-3+MBB-2-3-S 1 1 0 0 60 80 0 1 1 160 180 0 2 0 0 0 0 0 60 80 90 0 1 0 2 0 3 0 0 0 0 0 0 12 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 11 7-1 -2-5 -12-17 -22 K ok 13 6-1 -2-5 -12-17 -23 2-2+MBB-160-2-S 2-3+MBB-0-3-S 0 0 1 0 1 0 60 80 0 1 1 160 180 60 80 0 1 1 160 180 0 2 280 1 0 0 0 0 0 0 0 0 0 00 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 11 6 1-3 -5 - - -21 K ok 11 7 0-3 -6 - -16-21 We reserve the right to make changes without prior notice 7-04-17
0+ MBB-S - Supply air -0+MBB-3-0-S 2 0 1 0 2 0 1 0 80 90 1 0 2 0 3 0 0 600 0 0 0 0 12 00 Hz 63 1 2 0 1K 2K 4K 8K K ok 11 3 0-3 -5 - -14-23 -0+MBB-2-0-S + MBB-S - Supply air Correction vertical supply air, sound power level ( L WA ) and pressure loss (Δp t ) + MBB-S Correction factor duct Vertical supply air Ød 1 Ød 2 L WA Δp t 0 0 + 6 x 1,3 0 1 + 8 x 1,3 0 160 + 3 x 1,1 1 1 + 1 x 1 1 160 + 8 x 1,2 1 0 + 1 x 1 160 160 + x 1,5 160 0 + 3 x 1,1 160 2 + 0 x 1 0 0 + 7 x 1,3 0 2 + 0 x 1 0 3 + 1 x 1 2 2 + -2 x 1 2 3 + 0 x 1 2 0 + 0 x 1,1 3 3 + -2 x 1,1 3 0 + 3 x 1,2 80 90 1 0 2 0 3 0 0 0 0 0 0 12 00 Hz 63 1 2 0 1K 2K 4K 8K K ok 8 4-1 -3-4 - -14-8 We reserve the right to make changes without prior notice -04-17
without box - Extract air 0 + MBB-E - Extract air 0 7 5 0 1 160 0 2 3 60 0 1 0 0 0 0 0 00 80 0 1 0 0 0 0 0 00 00 00 0-0+MBB-0-0-E 2 0 1 0 5 60 80 60 80 0 1 0 Hz 63 1 2 0 1K 2K 4K 8K K ok 11 0 2-2 -6-11 - -22 We reserve the right to make changes without prior notice 9-04-17
1 + MBB-E - Extract air 160 + MBB-E - Extract air 2 0 1 0-1+MBB-1-1-E -160+MBB-160-160-E 2 0 1 0 60 80 0 1 60 80 0 1 0 0 0 60 80 0 1 0 60 80 0 1 0 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 14 5-1 -3-4 -12 - -21 K ok 14 4-1 -4-4 - -16-24 2 0-1+MBB-0-1-E 2 0-160+MBB-1-160-E 1 1 0 0 5 60 80 60 80 0 1 0 60 80 0 1 1 60 80 0 1 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 13 0 4-3 -8-11 -17-22 K ok 13 6 1-3 -5-12 - -21 2 0 1 0-160+MBB-0-160-E 5 60 80 60 80 0 1 0 0 Hz 63 1 2 0 1K 2K 4K 8K K ok 13 0 5-3 -9-12 -19-23 We reserve the right to make changes without prior notice -04-17
0 + MBB-E - Extract air 2 + MBB-E - Extract air -0+MBB-0-0-E 2 0 1 0 60 80 0 1 0 2 80 0 1 0 0 0 0 0-2+MBB-2-2-E 2 0 1 0 60 80 0 1 0 2 0 0 80 0 1 0 0 0 0 0 12 Hz 63 1 2 0 1K 2K 4K 8K K ok 5-1 -3-6 -9-16 - Hz 63 1 2 0 1K 2K 4K 8K K ok 11 6 2-2 -7-11 - -24 2 0-0+MBB-160-0-E 2 0-2+MBB-0-2-E 1 1 0 0 60 80 0 1 0 60 80 0 1 0 0 0 0 0 60 80 0 1 0 2 80 0 1 0 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 14 5 0-3 -5-9 - - K ok 13 5 1-3 -6 - -13-22 2-0+MBB-1-0-E 2-2+MBB-160-2-E 0 0 1 1 0 0 60 80 0 1 1 60 80 0 1 0 0 0 0 60 80 0 1 0 60 80 0 1 0 0 0 0 0 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 9 2 1-2 -5-9 -14-19 K ok 13 5 1-3 -5-11 -14 - We reserve the right to make changes without prior notice 11-04-17
3 + MBB-E - Extract air 0 + MBB-E - Extract air -3+MBB-3-3-E 2 0 1 0-0+MBB-3-0-E 2 0 1 0 60 80 0 1 0 2 3 0 80 0 1 0 0 0 0 0 12 00 60 80 0 1 0 2 3 0 80 0 1 0 0 0 0 0 12 00 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 13 5 2-3 -6 - - - K ok 11 5 2-2 -7-11 - - 2-3+MBB-2-3-E 2-0+MBB-2-0-E 0 1 0 1 0 0 60 80 0 1 0 2 0 0 60 80 0 1 0 2 0 0 80 0 1 0 0 0 0 0 12 80 0 1 0 0 0 0 0 12 Hz 63 1 2 0 1K 2K 4K 8K Hz 63 1 2 0 1K 2K 4K 8K K ok 9 5 2-3 -6 - -16-22 K ok 9 6 2-2 -6-12 -16-24 2 0 1-3+MBB-0-3-E 0 60 80 0 1 0 2 0 80 0 1 0 0 0 0 0 00 Hz 63 1 2 0 1K 2K 4K 8K K ok 13 5 0-3 -5 - - -22 12 We reserve the right to make changes without prior notice -04-17