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LPB 10
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Catalog excerpts

LPB 10 - 1

Supply grille with removable horizontal bars pitch 12,5 mm LPB 10 Description Supply grille with horizontal bars pitch 12,5 mm. Available both in anodised (LPB 10) and white (LPBW 10) version, it is installed in the wall or under window. The bars pack is fixed to the frame through clips, therefore it is easily removable. Fixing is done through lateral pressure springs. Construction Anodised aluminium (LPB 10), painted natural aluminium (LPBW 10). Finish Anodised aluminium (LPB 10), gloss white RAL 9010, powder-coated polyesther type (LPBW 10). Other versions LPB 15 : asymmetric bars, jet deflection 15° LPB 20 : with back vertical blades row. LPB 00 : only bars pack (without frame). LPBDDSP : with door L = 130 mm LVB □□ : fixing through visible frontal screws. Accessories CB1: Regulation damper. PLSR:standard plenum with oval inlet21. PLSSR: as PLSR, with damper on inlet. PLIR: isolated plenum** with oval inlet1. PLISR: as PLIR, with damper on inlet. PL-PE: plenum with circular inlet. PLI-PE: isolated plenum** with circular inlet. CTP : Counterframe for LPB. CT : Counterframe for LVB. * rear - ** polyurethane internal insulation depth 6 mm, cl.1 Dimensions B (mm): 200 - 1000 H (mm): 75 - 300 (multipli di 25) Specifications Supply grille with removable horizontal bars pitch 12,5 mm. Anodised aluminium (LPB 10) or white RAL 9010 (LPBW 10) painted natural aluminium construction. Fixing through pressure springs. F.C.R. SpA - Via E. Fermi, 3 - 20092 Cinisello Balsamo (MI) - Italy phone +39 02 61798 1 - fax +39 02 61798 300 - www.fcr.it - fcr@fcr.it

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LPB 10 - 2

Supply grille with removable horizontal bars pitch 12,5 mm LPB 10 Other versions Version LPB 15, with 15° deflected launch, is commonly employed in case of under-window installation. Version LPB 20, with vertical blades row positioned behind the bars, is commonly employed when it is necessary to direct the launch horizontally not in axis. Key to symbols hi Installation height d Distance between the supply grille and the wall to which the jet flows y Distance between the upper edge of the supply grille and the ceiling qv Air-flow per single supply grille X02 Free isothermic horizontal throw...

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LPB 10 - 3

Supply grille with removable horizontal bars pitch 12,5 mm LPB You must supply 1000 m3/h into a room where the maximum allowed LWA is 44 dBA (corresponding to about NR 35). You want to select a supply grille with proper dimensions and you want to determine the minimum distance from the opposite wall. From first diagram you have : Ak = 0,06 m2 From second diagram at qv you have: X0,2 = 14 m From third diagram you have : d = 5,5 m From fourth diagram at qv you have : DP = 16 Pa 0 0 F.C.R. SpA - Via E. Fermi, 3 - 20092 Cinisello Balsamo (MI) - Italy phone +39 02 61798 1 - fax +39 02 61798 300...

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LPB 10 - 4

Supply grille with removable horizontal bars pitch 12,5 mm LPB Coanda effect When the temperature difference Dt is different from zero, the different density of the supplied air compared to environment air, creates vertical jet deviations Dy (upstream during heating, downstream during cooling). In order to quantify them, determine first the throw’s velocity vk then the deviation Dy at the involved distance X. When the supply grille is installed in proximity to the ceiling, the secondary air’s induction can makes the the jet adhere to the ceiling, reducing velocity decrease and increasing...

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