LC
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Linear cylinder diffuser LC Description Linear rotating cylinder diffuser for ceiling or wall installation. Each slot houses inside a range of cylinders, that, by rotation, allow differents launch configurations. Compared to the traditional linear slot diffuser, it offers more flexibility and best performances. In fact, it’s possible to guarantee comfortable environment’s conditions (absence of air-flows) also in presence of high specific loads, due to the jet splitting (alternate throw), which allows a fast reduction of velocity. Characterized by pressure drops and limited noise levels, thanks to the big versatility, it’s used both for cooling and for heating both for ceiling and for wall. To maintain the aesthetic uniformity, the LFR (LF) linear diffuser can be used for intake. Dimensions Nominal length (L) : 1000, 1500, 2000 mm* Slots’ number (N) : 1,2, 3, 4 * Different lengths on request (by increments of 100 mm) Construction Extruded anodised aluminium (LC), extruded natural painted aluminium (LCW). Plastic material cylinders. Finish Anodised aluminium, with black cylinders (LC). Gloss white RAL 9010, powder-coated polyester type, with white cylinders (LCW). Specifications Linear rotating cylinder diffuser for ceiling or wall installation. Ceiling diffusion with horizontal launch and alternate throw, with or without Coanda effect. Ceiling diffusion with vertical launch. Wall diffusion. Possibility to rotate cylinders in closing position, in order to partialize the jet. Anodised aluminium or white painted aluminium RAL 9010 and plastic material (cylinders) construction. N _qv_^_dLWA _500_50_5,5_45 qv air flow per meter (L = 1000 mm) aP pressure drop d distance from the wall (hi = 3 m) Lwa noise rating (rif. 10-12 W) Accessories PLSA-LC: standard plenum type“A” PLSB-LC: standard plenum type “B” PLSC-LC: standard plenum type “C” PLIA-LC: insulated plenum* type “A” PLIB-LC: insulated plenum* type “B” PLIC-LC: insulated plenum type “C” CT-LC: counterframe for LC ANGLC: angle piece for 90° element composition *internal polyurethane insulation thickness 6mm, cl. 1 A* b* C** D** f*** h** * LC/LCSB ** type “A” / type “B” *** external diameter, single inlet for L = 1000 mm, double inlet for L = 1500 mm and L = 2000 mm. 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 -

Linear cylinder diffuser LC Other versions LCSB: like LC but without lateral frame, for plasterboard installation. For wall installations it is used the plenum type “C”, with the wall hanging of the plenum or ceiling hanging and diffuser’s fixing to the plenum through apposite screws, through slots. Schema di montaggio The basic mounting scheme provides the employment of plenum type “A” with hanging of the diffuser to the ceiling through specific brackets. These allow also the diffuser-plenum junction (with gasket). The regulation damper can be controlled through a fine tool (for ex.:...

Linear cylinder diffuser LC Plenum type “B” Plenum Plenums are equipped with single inlet in case of L = 1000 mm and with double inlet for L = 1500 mm and for L = 2000 mm. Other different executions are possible at request. Plenum type “A” 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

Linear cylinder diffuser LC * LC/LCSB Counterframe CT-LC: counterframe for LC,for plasterboard false ceilings 12.5 mm thick; screw fixing. Diffusers composition (L > 2000) In case of L > 2000 mm, the execution is made in more parts. The composition of two side by side LC is made through grooved pins and connection plates to be mounted where there are the fixing screws, which can be normally found at the end of the diffuser. The composition foresees the use of 2000 mm section-sin the center and of elements of different lenght at the two ends, according to following rule (nominal lenght L):...

Linear cylinder diffuser pag. A-56 Launch configuration By adequate cylinder’s positioning (which have asymmetric profile) into the slot and by using the proper reference marks, it’s possible to obtain the following diffusion geometries: 2) Horizontal bilateral ceiling diffusion with alternate throw and without Coanda effect. 1) Horizontal bilateral ceiling diffusion with alternate throw and Coanda effect (alternate tangent). It’s the standard configuration. Cylinders are disposed so that the consecutive elements could generate opposite directions launches. This allows elementary stable jet...

Linear cylinder diffuser 3) Vertical ceiling diffusion. pag. A-57 4) Alternate throw wall diffusion. It’s the maximum vertical penetration configuration. Cylinders are disposed so that vertical elementary jets could form a single front. It represents the alternative solution to the traditionals wall grilles. Cylinders are disposed so that the consecutive elements could generate wide apart launches (angles between jets ≤ 50°). The elementary stable jets splitting, ensure a faster reduction of speed and temperature difference. Cylinders disposition Cylinders disposition F.C.R. SpA - Via E....

Linear cylinder diffuser pag. A-58 It’s otherwise possible to opt for “mixed” configurations, by adequated match of the previous cases and proper cylinder disposition. For example it’s possible to orient a part of the jet to the ceiling and another part along the wall, however keeping alternate throw. 5) Diffusion with interruption fringes (closed cylinder). Sometimes it can be useful to rotate cylinders until complete slot closure: this option increases even more the diffuser’s versatility. For example in case of vertical launch, when you want to increase the penetration through throw’s...

Linear cylinder diffuser pag. A-59 Performances: L=1000, N=1 (alternate tangent) 50 Distance from wall Air-flow per single diffuser Pressure drop LWA Sound power level weighed “A” (rif. 10-12 W) Selection 1 At the requested air-flow qv, according to diagram 1, determine slots number N so that the sound power level LWA can’t exceed the maximum allowed one for plan’s value. 2 At the requested air-flow qv, known N, from point 1 and known the installation height hi, from diagram 2, determine the minimum distance from wall d. 3 At the requested air-flow qv, known N, from point 1, verify from...