Dimensions ØU Ød H 0 ØA Description is a circular diffuser with individually adjustable nozzles. The diffuser is suitable for the horizontal supply of cooled air, where great flexibility in the dispersal pattern is required. The diffuser can also be set to a vertical supply air pattern, enabling supply of heated air. Installing a diffuser in a plenum box type MB can help to achieve a stable flow of air 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 is with a rotating blade damper for supply air. Typically used in applications that don t require a high balancing pressure in the plenum box. Ød ØA H ØU* m mm mm mm mm kg 0.90 0 0. 0 0... * ØU = ceiling grid opening Ød, No mounting holes for MB! Adjustable dispersal patterns No pressure change for different dispersal patterns 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 box. The visible parts of the diffuser can be wiped with a damp cloth. Order code Product - S - aaa Functional use S = Supply air Connection dim. Ød - Example: -S-0 Materials and finish Material: Galvanised steel Standard finish: Powder-coated Standard colours: RAL 900 and RAL 90, gloss Nozzles: White ABS plastic 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 -0-
Accessories Mounting brackets DCZ + MB plenum box D L x W Ød B Ød H e C Extension piece Order code - accessories Product aaa bbb Size Example: DCZ-0 MBZ Ød Ød B C D e H* L W mm mm 0-90 0 0 0-90 0 9-0 9-0 9-0 0 9 9-9 9 0 0 0 9 9-9 9 0 0 9 9-9 9 0 0 0-90 0 0-90 0 0-90 0 0 0-9 0 0-9 0 - * Using accessory MBZ the H dimension will increase: Ød = - 0 mm => H + mm Ød = - mm => H +0 mm Damper options Module plate LM Order code Order code - module plate Product LM a ccc Ceiling system Diffuser Size Example: LM---0 Ceiling system - see introductory summary Product MB a bbb ccc S MB Damper B = Linear cone damper C = Blade damper supply Duct connection Ød Ø0- Diffuser dimension Ød Ø- Function (Only for B damper) S = Supply air Example : -S-0+MBB-0--S Example : -0+MBC--0 We reserve the right to make changes without prior notice -0-
Following +plenum box data are valid for MBB-S. For MBC data, go to www.lindqst.com. Capacity Air flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [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 chart 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 Ød l/s m /h l/s m /h 0 90 9 0 0 9 9 0 9 0 9 0 0 0 0 9 9 0 9 0 0 0 0 9 0 9 9 0 0 9 9 9 Throw l 0. Throw l 0. [m] is specified at a terminal velocity of 0. m/s. l 0. [m] -S l 0. [m] 0 0 l 0. [m] 0 0 0 0 0 0 0 0 0 0 00 -S 0 0 l 0. [m] 0 0 0 0 0 0 0 0 0 0 00 Sound attenuation Sound attenuation of the diffusers ΔL from duct to room, including end reflection, see table below + MBB-S duct Centre frequency Hz Ød Ød 0 K K K K 0 9 0 0 9 9 9 0 0 9 0 0 0 0 9 9 9 0 9 0 0 0 9 9 0 9 9 9 Balancing Balancing data is contained in a separate brochure. We reserve the right to make changes without prior notice -0-
Throws/Turning points Throw l 0. [m] is specified at a terminal velocity of 0. m/s. Turning point is specified for + K and + K respectively. without box Supply air 0 -S 0 0 l 0. [m] -S l 0. [m] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 -S +K 0 0 0 0 0 0 0 0 0 0 0 0 0 -S +K 0 0 0 0 0 0 0 0 0 0 0 0 00 We reserve the right to make changes without prior notice -0-
- + MBB-S - Supply air - 0 + MBB-S - Supply air -S-+MBB---S 0 -S-0+MBB-0-0-S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Hz 0 K K K K Hz 0 K K K K K ok - 0 - - - - K ok - - - - - - -S-+MBB-0--S -S-0+MBB--0-S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Hz 0 K K K K Hz 0 K K K K K ok 0 - - - - K ok - - - - - - 0 -S-0+MBB-0-0-S 0 0 0 0 0 0 0 0 0 Hz 0 K K K K K ok 0 - - - - We reserve the right to make changes without prior notice -0-
- 0 + MBB-S - Supply air - + MBB-S - Supply air 0 0 -S-0+MBB-0-0-S 0 0 0 0 0 0 0 0 -S-+MBB---S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 Hz 0 K K K K K ok - 0 - - - - Hz 0 K K K K K ok - - - - - - 0 -S-0+MBB-0-0-S 0 -S-+MBB-0--S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Hz 0 K K K K Hz 0 K K K K K ok 9 - - - - - - K ok - - - - - -9 0 0 -S-0+MBB--0-S 0 0 0 0 0 0 0 0 0 0 0 -S-+MBB-0--S 0 0 90 0 0 0 0 0 0 0 00 Hz 0 K K K K K ok 0 0 - - - - Hz 0 K K K K K ok - - - - - We reserve the right to make changes without prior notice -0-
- + MBB-S - Supply air -S-+MBB---S 0 0 0 0 90 0 0 0 0 0 0 0 0 0 Hz 0 K K K K K ok 9 - - - - - - 0 -S-+MBB---S 0 0 0 90 0 0 0 0 0 0 0 0 0 Hz 0 K K K K K ok 9 - - - - - - 0 -S-+MBB-0--S 0 0 0 0 0 0 0 0 0 0 0 0 0 00 Hz 0 K K K K K ok 0 - - - - - We reserve the right to make changes without prior notice -0-