Technical Documentation Linear diffusers series LDB LTG Aktiengesellschaft 70435 Stuttgart, Grenzstraße 7, Germany Tel. +49 711 8201-0, Fax +49 711 8201-720 [email protected] www.LTG-AG.com LTG Incorporated 105 Corporate Drive, Suite E Spartanburg S.C. 29303, USA Tel. +1 864 599-6340, Fax +1 864 599-6344 [email protected] www.LTG-INC.net LTG S.r.l. con socio unico Via Matilde Serao 5, 20144 Milano (MI), Italy Tel. +39 02 9550535, Fax +39 02 9550828 [email protected] www.LTG-SRL.com
Open the catalog to page 1Linear diffusers series LDB Dimensions stated in this brochure are in mm. Dimensions stated in this brochure are subject to General For the outlet grille see the special tolerances specified in Straiahtness and twist tolerances for extruded aluminum For punched profiles - LDB 12 and LDB 15 - twice the straightness and torsion tolerances acc. to The surface finishes meet standard indoor use require- ments, i.e. room climate requirements according to DIN EN ISO 7730. Other finishes meeting special use require- ments are available on request. You will find the actual tender documentations at the...
Open the catalog to page 2The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB - the decisive elements for the effienciency of air conditioning and ventilation systems Diffusers are designed to ensure a uniform distribution of the conditioned air within the room. Their proper functioning is, therefore, essential for the wellbeing and health of people working in air conditioned spaces. LTG diffusers of the LDB series meet any vital requirements: - draft free conditions - adaptation to individual requirements even after installation without reducing the efficiency - uniform distribution of the conditioned...
Open the catalog to page 3The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB Product overview LDB 20/8 Slot nozzles, individually adjustable, even after installation Special features For an inconFor high comfort spicuous installation in shaded joints and suspended ceilings For high ceilings and large volume flow rates For high comfort. With an additional slot in the diffuser border profile to reduce contamination around the diffuser. Profile width Recommended air flow rate Number of slot rows Recommended installation height Profile surface: untreated aluminum, anodized, painted similar to RAL. The...
Open the catalog to page 4The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB Unit views Linear diffusers series LDB Advantages Wide range of individual designs. Nozzle arrangement and micro-jet pattern provide a highType LDB 20/8 induction air flow, ensuring a rapid reduction of supply air speed and temperature differences. High flexibility of nozzle adjustment allows the air flow pattern to be adapted to changed room conditions even after installation. Compact air plenum box fits even the tightest space in intermediate ceilings. Factory-set diffuser nozzles ensure an easy, fast and Type LDB 50...
Open the catalog to page 5The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB Series LDB LTG System cleanR Series LDB entirely made of of metal Reduced renovation and maintenance costs thanks to Diffuser entirely made of metal, thus non-flammable. an additional air curtain close to the ceiling preventing airborne particles from depositing. Any options of the linear diffuser type LDB are equally suitable for an integration into ceilings. Special ceilings are protected from contamination. Improved induction, stabilized flow pattern and low speed of the supply air in the occupied space. Optimized air...
Open the catalog to page 6The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB Diagram for “air only” systems 200 150 Specific cooling capacity [W/m2] Ventilation rate [1/h] based on a room height of 2.75 m These limit values are generally valid and independent of the diffuser type. Use of the diagram Based on the known value, i.e. the specific cooling load, the specific volume flow rate can be calculated by choosing the corresponding temperature and volume flow rate of the supply air depending on the desired room temperature of 22 or 26 _C respectively. DIN limits should, however, be observed to...
Open the catalog to page 7Linear diffusers series LDB Selection diagram © LTG Aktiengesellschaft • GrenzstraGe 7 • 70435 Stuttgart • Deutschland Printed in Germany ■ Former editions are invalid ■ Subject to technical modifications
Open the catalog to page 8Linear diffusers series LDB Selection diagram iturbe i air diffi sion with undi iturbed air diffu sion V = volume flow rate [m3/(hm)] LWA = sound power level [dB(A)] a(cmax)= extension of jet at which the maximum speed of the ambient cmax = maximum speed of ambient air with uniformly distributed h = height of measuring point [m] Note: The recommended min. distance between two parallel diffusers should, in case of high temperature differences At, not be less than the value of a (cmax). The diagrams are based on measuring results with the standard nozzle adjustment and a room height of 2.8 m. Example...
Open the catalog to page 9The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB Type LDB 12 - dimensions and accessories border profiles Air distribution box for LDB 12 without insulation Air distribution box for LDB12 with insulation (double skin box) 126 The values given refer to standard versions. Reduced box sizes and spigot diameters are available on request, depending on volume flow rate and acoustic requirements. *) Neck lengths 45 to 80 mm Diffuser length Border profiles for LDB 12 (length max. 1250 mm) E LTG Aktiengesellschaft Grenzstraße 7 70435 Stuttgart Deutschland Tel. +49 711 8201-0 Fax...
Open the catalog to page 10The Innovation Company LTG Aktiengesellschaft Linear diffusers series LDB Type LDB 12/8 LTG System cleanR - dimensions Air distribution boxes for LDB 12/8 LTG System cleanR Air distribution boxes for LDB 12/8 LTG System cleanR with insulation (double skin box) 15 * Execution: integrated throttle damper DLU at spigot diameters 99 ... 139 The values given refer to standard versions. Reduced box sizes and spigot diameters are available on request, depending on volume flow rate and acoustic requirements. Spigot dimensions for LDB 12/8 LTG System cleanR Diffuser length Lnom [mm] The given values LWA...
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