high performance Self Drain Louvres

Publication Self Drain LOUVRES SEPT 2005 Section 2 J C V E N T S Self Drain Louvres high performance Series ODL louvres have been developed to provide maximum weather protection to critical ventilation openings in buildings. This is achieved by an innovative blade design which drains any surface water internally and thereby prevents carry over by the intake air. In addition the deep format frame allows a shallow blade angle ODL louvres are composed of aluminium frame and blade assemblies manufactured to suit the aperture size. Frame styles include recessed and flange types. Louvres are constructed entirely from aluminium extrusions to BS1474 using material to HE9 specification. Frames and blades are rivetted or screwed to form a robust construction. Louvres are conventionally specified in terms of the building aperture size, and suitable tolerances are built in before manufacture. Size should be given in terms of Width ‘W’x Height’H’ ODL louvres are designed for maximum weather protection of supply and exhaust ventilation openings in buildings. Especially where water ingress must be kept to a minimum, ideal for coastal and exposed areas. in addition ODL louvres can be applied to curtain walling applications around plant enclosures and rooms. Standard finish stove silver Special finishes are available to suit most architectural requirements and include: Natural satin anodised Colour Anodised Polyester powder coat Stoved epoxy Stoved acrylic Syntha Pulvin PVF2 Primed Mill Bird or vermin guard (BS) galvanized mesh fixed to the rear of the louvre section. Insect screen (IS) in stainless steel. Where used in deep recessed applications, the ODL louvres can be supplied with an extended bottom cill to carry water away from the building facia. (35 degrees) which increases louvre free area and can reduce louvre size. The frame is ideal for modular louvres although it is possible to form curtain walling via butt jointing. Self Drain Louvres introduction description size convention manufacture finishes accessories applications 2 WEEP AREA LOUVRE CILL ODL louvres are manufactured under license from Arrow United Industries Ltd. The product has achieved a certified performance as approved by the Air Movement and Control Association of America. Certified that the Model ODL louvres shown herein are licensed to bear the AMCA seal. The ratings shown are based on tests made in accordance with the AMCA Standard 500 and comply with the requirments of the AMCA Certified Ratings Programme. The AMCA seal applies to air performance and water penetration ratings. The louvre blades incorporate an upward facing gutter which collects the surface water and prevents “pickup” by intake air or gusting winds. The gutter channels the water to the frame edges, where it is drained to the cill frame and building exterior. Principle of operation authority ODL / R J C V E N T S 3 ODL louvres are designed for maximum weather protection of supply and exhaust ventilation openings in buildings. Especially where water ingress must be kept to a minimum. Ideal for coastal and exposed areas. OA Flange = Nominal + 70mm 64mm Recessed Louvre Height = Nominal - 12.5mm Flanged Louvre = Nominal - 6mm Wall Opening Nominal OA Flange = Nominal - 12.5mm Recessed Louvre Height = Nominal - 12.5mm Wall Opening Nominal 64mm Wall 102mm 35o Wall 102mm 35o 35mm Max Section Width Hole Size or Nominal Width - 12.5mm Mullion 51mm Louvre Width ODL / F flanged frame ODL / R recessed frame jointing arrangement ODL Louvre 4 F O = S t o v e S i l v e r F 1 = A n o d i s e d N a t u r a l F 2 = A n o d i s e d C o l o u r F 3 = P o w d e r C o a t C o l o u r F 4 = S t o v e d E p o x y C o l o u r F 5 = S t o v e d A c r y l i c C o l o u r F 6 = S y n t h a P u l v i n F 7 = P r ime d C o a t Wi d t h x H e i g h t (mm) ( N omi n a l o p e n i n g ) . B

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