Overview • External louvre for air intake and exhaust to prevent rainwater, snow, leaf and animal ingress • Rainwater ingress penetration efficiency of approx. 95% • Excellent operation based on special front edge blade profile and side grooves • Grille and steel mesh section detachable from outside • Polyester-painted galvanised steel as standard finish Product models and accessories • Modular construction available for large sizes • Models available made of painted, unfinished or anodised aluminum, stainless steel (AISI 316L) and copper • Model with circular duct connection also available (USD) Halton reserves the right to alter products without notice.

At the joint between modules, the dimension is 105 mm. In addition to standard sizes, other sizes can be specially ordered. The maximum nominal size is 1200x1000 mm. It is possible to have a continuous grille of modular design when the installation length is greater than 1200 mm. The maximum total length is 20 m.

Part Material Finishing Note Fixed blades The standard material is painted Galvanised galvanised steel (RAL 7001). steel Special colours and anodising of aluminium are available on request. Optionally aluminium, copper or stainless steel (AISI 316L) The standard material is painted galvanised steel (RAL 7001). Special colours and anodising of aluminium are available on request. Optionally aluminium, copper or stainless steel (AISI 316L) Stainless steel (AISI 316L) Mesh Galvanised Air is supplied or extracted through the horisontal blades. The design of the grille prevents rainwater from reaching...

Blade construction Depth of blade 65 mm, distance between blades 50 mm, free area 50% Water penetration prevention (USS/I) Water penetration rating per square meter of louvre tested according standard EN 13030:2001. Core velocity at free duct area of louvre size.

Code description The grille is suitable to be screw-fixed into a prepared masonry wall opening. Drill holes in the flanges of the frame on the site. The dimensions of the grille are given as the nominal dimensions of the opening.

In a modular installation, the frames of adjacent modules are bolted together before installation of the louvre sections. In large modular installation (heigth > 2000 mm) the louvres shall be installed with a support structure (not included in delivery). If required, the grille is cleaned with a soft brush. The outdoor louvre is manufactured from galvanised steel with an painted finish. The louvre includes mesh fitted behind the grille. The outdoor louvre is effective in preventing rainwater, snow, leaves, and animals and other objects entering the ductwork. The louvre has a rainwater prevention...

MA = Material (only for USS) CS Steel AS Stainless steel (AISI 316) FI = Finishing (only for USS) PN Painted NA No finishing AN Anodised AM Anodised aluminium (spec.color) X Special colour (RAL xxxx) USS/I-150-150, MA=CS, FI=PN, CO=G; ZT=N USD-200, CO=G, ZT=N