ALAS
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08/01 - 2 Construction subject to change. Version: 30.10.2018 No return possible!

Weather Protection Grille ALAS Description External air intake or return air grille with fixed, rain-repellent blades and back-fitted wire mesh grid. Mounting holes drilled as standard. On request, all designs with mounting frames made of angular 30/30/3 steel are primed. ALAS with self-regulating heating strip A better way of preventing ice formation is the installation of a self-regulating heating strip. It is a heating strip that adapts the heating output to the environment at any position of the grille. Available in any length, rated capacity max. 36 W/m. It can be used up to -8 °C and...

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Weather Protection Grille ALASModels and dimensions Dimensions Installation arrangement for sectioned design at height > 1995 1.) from height or width > 1600, 3 fixing holes per side 2.) additional holes for widths > 900 For a height of > 1995 two standard surrounding air suction grilles must be installed, one on top the other. Installation height (EMH): "EMH=(H1xa)-(2x45)+15" a = Number of grilles For a width of > 2000 two standard surrounding air suction grilles must be installed next to each other. Installation width (EMB): "EMB=(B1xa)-(2x45)+15“ a = Number of grilles Construction...

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Weather Protection Grille ALAS The illustration shows the grilles as continuous run. Any number of grilles can be installed next to each other. Expansion joints have to be allowed when fixing air suction grilles on site. On request, a mounting frame made of angular steel 30/30/3 can be delivered primed (at an extra charge). 1.) from a height or width > 1600, 3 fixing holes per side 2.) additional holes for widths > 900 Mounting frame for band design *DQ^0Q^Dfl. Installation in front of the wall ALAS / ALAS-Cu ALAS-Alu Number of wall anchors for mounting frame Height: H < 1000 = 2 wall...

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Weather Protection Grille ALAS Fixing lugs (not removable from the outside) Mounting height (EMH) + +10 Mounting height (EMH) Mounting detail ALAS with mounting frame Height one-piece Sectioned height Sectioning of fixing lug Height: H < 800 ⇒ 800 < H < 1100 ⇒ 1100 < H < 1800 ⇒ 1800 < H < 2000 ⇒ Wall anchor Wall anchor Sectioned width ⇒ 2 fixing lugs per side ⇒ 2 fixing lugs per side ⇒ 2 fixing lugs per side ⇒ 3 fixing lugs per side Width: B < 900 ⇒ b= ---- ⇒ no fixing lug 900 < B < 1200 ⇒ b=140 ⇒ 2 fixing lugs per side 1200 < B < 1800 ⇒ b=230 ⇒ 2 fixing lugs per side 1800 < B < 2000 ⇒...

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Weather Protection Grille ALAS ALAS with heating strip Technical details regarding the heating strip Structure 1. 1.2 mm2 multi-strand copper conductor 2. Self-regulating, semi-conductive heating element 3. 0.7 mm electrical insulation made of modified polyolefin 4. Protection mesh made of galvanised copper leads 5. Outer casing made of modified polyolefin Thermal safety class 0 according to VDE 0721 Part 2 E § 10 Technical data Nominal voltage 230 V Rated power - Ice-water: at 0°C 36W/m max. resistance of protective mesh 0.0152 W/m max. permitted surrounding temperature - switched on + 65...

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Weather Protection Grille ALAS ALAS with "top" heating strip Technical details regarding the "top" heating strip Structure 1. 1.4 mm2 multi-strand copper conductor 2. Self-regulating, semi-conductive heating element 3. Insulation made of fluoro polymer 4. Protection mesh made of galvanised copper leads 5. Outer casing made of fluoro polymer Temperature classification T4 in accordance with European standard EN 50014. Technical data Nominal voltage 230 V Rated power - Air: at 10°C 64W/m max. resistance of protective mesh 0.01 Ω/m max. temperature of use (permanently switched on) + 110 °C Note...

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Weather Protection Grille ALASTechnical data Pressure loss and noise level Area correction FQband = FQ - (KF x number of webs) Construction subject to change.

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Weather Protection Grille ALAS Circuit diagram ALAS (with heating strip) ALAS (with "top" heating strip) Lwa [dB(A)] = A-weighted sound power level, relative to 1 m2 (Lwa = (Lwa / m2) + KF) vstirn (m/s) = Intake velocity, relative to (H - 80) x B F (m2) = Cross-section area, relative to (H - 80) x B KF (m) = Surface area correction factor FQ (m2) = free cross-section per running metre D (mm) = diameter of the mesh wire Specification texts External air intake or return air grille with fixed, rain-repellent blades and back-fitted wire mesh grid. - Frame and blades from galvanised sheet steel,...

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