lindab | we simplify construction Versio - Ceiling diffusers GS23 Technical data Following GS23-V+plenum box data are valid for MBB-E . For MBE data, go to www.lindQST.com Capacity Air flow q v [l/s] and [m 3 /h], total pressure Δ p 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 dia- grams on the following pages. Sound attenuation Sound attenuation of the diffusers Δ L from duct to room, including end reflection - see table below. GS23-V + MBB-E GS23-V + MBB-E duct GS23-V Centre frequency Hz Ød 1 Ød 2 63 125 250 500 1K 2K 4K 8K 100 160 20 16 5 19 20 19 18 21 125 160 16 13 9 20 18 18 19 20 125 200 14 12 6 17 16 16 18 19 160 160 17 16 10 24 20 20 21 21 160 200 15 15 7 22 21 19 20 21 160 250 15 14 5 20 16 16 17 19 200 200 14 11 7 18 21 17 20 18 200 250 13 9 5 17 18 16 18 17 200 315 13 8 3 15 17 15 17 16 250 250 15 8 7 18 18 18 18 19 250 315 15 7 6 16 16 17 17 18 315 315 8 11 8 16 18 17 17 22 GS23-H-2 GS23-H Size Ød mm 125 160 200 250 315 GS2 G 3- S H 23 - - 0 H-0 GS23-H Size Ød mm 160 200 250 315 400 500 Centre frequency Hz 63 125 250 500 1K 2K 4K 8K 17 16 5 9 10 4 5 5 16 14 3 11 11 4 4 4 15 9 2 11 7 4 4 6 14 8 3 9 4 3 4 6 12 6 4 10 3 3 4 6 Centre frequency Hz 63 125 250 500 1K 2K 4K 8K 17 11 5 6 9 4 3 3 18 6 3 6 7 3 4 4 14 6 4 11 5 4 3 3 10 6 6 10 4 2 4 4 10 4 6 6 4 3 3 3 9 4 5 5 3 2 3 3 GS23-V without plenum box-Extract air ∆p t [Pa] GS 23-V-E-0 100 70 50 30 20 15 10 7 5 50 60 70 80 100 150 200 200 300 400 500 700 160 200 250 315 50 45 40 35 30 25 20 300 1000 L WA dB(A) 400 500 1500 2000 q V [l/ s ] 700 1000 3000 q V [m 3 /h] GS23-H without damper - Extract air ∆p t [Pa] GS23-H-E-0 250 150 100 50 30 15 10 7 5 3 2 1 50 70 100 150 200 300 400 500 700 160 200 250 315 400 500 50 45 40 35 30 25 20 300 1000 400 500 1500 700 2500 L WA dB(A) 1000 q V [l/ s ] 1500 3500 5000 q V [m 3 /h] Installation -and balancing instruction For futher information go to www.lindQST.com and installa- tion -and balancing instruction. 4 Lindab reserves the right to make changes without prior notice 2021-01-29
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