Ventilation grille AL Ferdinand Schad KG Steigstraße 25-27 D-78600 Kolbingen Telephone +49 (0) 74 63-980 - 0 Fax +49 (0) 74 63-980 - 200 info@schako.de www.schako.de
Contents Description...3 Construction... 3 Model... 3 Accessories... 3 Fastening... 3 Models and dimensions...4 Dimensions... 4 Dimensions of accessories... 5 Fastening methods... 9 Technical data... 10 Pressure loss and noise level... 10 Front side velocity... 11 Face area... 11 Maximum end velocity of jet... 12 Jet path... 13 Critical throw... 14 Maximum penetration... 15 Induction and temperature ratios... 16 Minimum distances... 16 Correction factor (for scattered air jet)... 17 Legend... 17 Order details... 18 Specification texts... 19 01/13-2
Description The ventilation grille type AL is suitable for use in supply and return air installations. For, horizontal or vertical pivoting blades are attached to the front side. Frame and blades made of natural anodised aluminium or aluminium painted to a RAL colour. Assembly parts made of galvanised sheet steel. Standard fastening by means of concealed mounting. At an extra charge, a plenum box can be mounted (only available without hit-and-miss damper). The damper in the connection piece of the plenum box (by additional charge) serves for easy air volume regulation. Construction Frame and blades - Aluminium natural colour anodised E6/EV1 - Aluminium painted to a RAL colour (at an extra charge) Model AL 1 - Horizontal pivoting blades at the front side AL 2 - same as AL 1, additionally with vertical, pivoting air deflection blades AL 5 - same as AL 1, additionally with hit-and-miss damper AL 6 - same as AL 1, additionally with vertical, pivoting air deflection blades and hit-and-miss damper AL 11 - Vertical, pivoting deflection blades at the front side AL 12 - same as AL 11, additionally with horizontal, pivoting blades AL 15 - same as AL 11, additionally with hit-and-miss damper AL 16 - same as AL 11, additionally with vertical, pivoting air deflection blades and hit-and-miss damper Accessories Plenum box (-ASK) Electrolytically galvanised sheet steel (only possible without hit-and-miss damper) - Damper (-DK) - in plenum box - Throttle damper made of galvanised sheet steel - Damper fastening made of plastic Mounting frame (-E1) - Electrolytically galvanised sheet steel Internal insulation (-Ii) - thermal insulation at the inside of the plenum box External insulation (-Ia) - thermal insulation at the outside of the plenum box Rubber lip seal (-GD) - Special rubber, on plenum box adapter Fastening Screw mounting (-SM) available on special request (screws to be provided onsite) - Concealed mounting (-VM12) - Standard 01/13-3
Models and dimensions Dimensions AL 1 AL11 With intermediate rail for lengths from 625 (see page 9) All models are based on basic type AL 1 AL 2 All models are based on basic type AL 11 AL12 AL 5 AL 15 AL 6 AL 16 Available sizes L L1 L2 L3 H H1 H2 H3 H4 325 348 303 310 75 102 57 64 62 425 448 403 410 125 152 107 114 112 525 548 503 510 225 252 207 214 212 625 648 603 610 325 352 307 314 312 825 848 803 810 1025 1048 1003 1010 1225 1248 1203 1210 All combined lengths and heights available! Other sizes available on request. 01/13-4
Dimensions of accessories Plenum box (-ASK) with lateral connection spigot (-AS1) external With fixing lugs Grilles cannot be fitted with a hit-and-miss damper if a plenum box is attached, i.e., it can either be fitted with a hit-and-miss damper or a plenum box. Detail X Concealed plates can be bent outwards, if necessary. Available sizes ASK -AS1 L H KL H1 KH Ød 325 320 210 123 425 420 210 123 525 520 210 123 625 75 620 68 210 123 825 820 245 158 1025 1020 245 158 1225 1220 245 158 L H KL H1 KH Ød 325 320 285 198 425 420 285 198 525 520 285 198 625 225 620 218 335 248 825 820 335 248 1025 1020 335 248 1225 1220 335 248 L H KL H1 KH Ød 325 320 245 158 425 420 245 158 525 520 245 158 625 125 620 118 245 158 825 820 285 198 1025 1020 285 198 1225 1220 285 198 L H KL H1 KH Ød 325 320 335 248 425 420 335 248 525 520 335 248 625 325 620 318 400 313 825 820 400 313 1025 1020 400 313 1225 1220 400 313 01/13-5
Spigot arrangement Insulation for plenum box internal (-Ii) - Lateral connecting piece (-AS1, standard) - Connecting piece from above (-AS2) - Connecting piece front side (-AS3) Dimensions and prices for connecting piece from above (-AS2) and connecting piece front side (-AS3) upon request. Throttle damper (-DK) Rubber lip seal (-GD) Detail Y external (-Ia) 01/13-6
Mounting frame (-E1) Wall anchor Length L < 825 mm = Length L > 825 mm = 4 wall anchors 6 wall anchors Mounting frame for band design 2-part, BL < 2025 mm Length of band -2 = = Wall anchor multi-part BL > 2025mm) End piece 1/2 difference Length of band - Section(s) 1020 mm End piece 1/2 difference Wall anchor Assembly rail Plug-in connection Mounting frames for grille bands are supplied with plug-in connections. Assembly webs are additionally attached, they can easily be removed with a turn, once the grille is walled in. All mounting frames are supplied without wall anchors as standard. Wall anchors available at an extra charge only. 01/13-7
AL as band Ventilation grilles types AL 11, 12, 15 and 16 are available as ventilation bands. Ventilation bands can be supplied only with screw mounting (SM). Ventilation grille band, divided into 2 parts for band length BL < 2025mm Indentation for raised countersunk head tapping screw according to DIN ISO 7051 pitch 3.9 End piece End piece Length of band Length of band +23 multi-part for a length of band BL > 2025 mm Indentation for raised countersunk head tapping screw according to DIN ISO 7051 pitch 3.9 End piece 1/2 difference Section(s) 1020 mm Length of band End piece 1/2 difference Length of band +23 End piece < 425 mm = 4 raised countersunk head tapping screws End piece > 425 mm = 6 raised countersunk head tapping screws Section = 6 raised countersunk head tapping screws 01/13-8
Fastening methods Screw mounting (-SM) The ventilation grille of the series AL can be supplied with screw mounting (SM) only on special request. L 325-425 Indentation for raised countersunk head tapping screw DIN ISO 7051 pitch 3.9 L 525 L 625-825 Intermediate rail L 1025-1225 Intermediate rail Concealed mounting (-VM) Unless stated otherwise, the ventilation grilles of the AL series are delivered with concealed mounting (VM). For concealed mounting (VM) without mounting frame VM 12 is standard. The concealed mounting VM 11 is only available with a mounting frame or plenum box. The mounting frame must be ordered separately. From height H = 225 two attachments per side. VM 11 VM 12 VM 11 only available in connection with a mounting frame or a plenum box 01/13-9
Technical data Pressure loss and noise level AL (supply air) AL with hit-and-miss damper (supply air) AL (return air) AL with hit-and-miss damper (return air) Hit-and-miss damper open in % 01/13-10
Front side velocity Supply air return air Face area Supply and return air (m²) Height H (mm) Length L (mm) 325 425 525 625 825 1025 1225 75 0,016 0,021 0,026 0,031 0,042 0,052 0,062 125 0,031 0,041 0,051 0,061 0,082 0,102 0,123 225 0,061 0,081 0,101 0,122 0,162 0,202 0,243 325-0,121 0,151 0,182 0,242 0,313 0,363 A Stirn (m²) L WA = L WA1 + KF Correction factor Supply air Return air A Stirn (m²) 0,012 0,025 0,05 0,1 0,16 0,2 0,4 A Stirn (m²) 0,01 0,02 0,04 0,08 0,16 0,32 0,4 KF (-) -9-6 -3 0 +2 +3 +6 KF (-) -9-6 -3 0 +3 +6 +7 01/13-11
Maximum end velocity of jet Supply air without coanda effect Supply air with coanda effect 01/13-12
Jet path Supply air without coanda effect Heating Cooling 01/13-13
Critical throw Supply air with coanda effect Jet detachment 01/13-14
Maximum penetration In heating mode 01/13-15
Induction and temperature ratios Supply air without coanda effect Supply air with coanda effect Minimum distances Supply air without coanda effect For the diagrams to be correct, the distance z between two grilles must be > x (m) x 0.2. Supply air with coanda effect For the diagrams to be correct, the distance z between two grilles must be > x (m) x 0.2. 01/13-16
Correction factor (for scattered air jet) with or without coanda effect Blade position 44 84 End velocity of jet v max (m/s) 0.65 v max (m/s) 0.5 Critical throw x kr 0.77 0.6 TV = ΔT x / ΔT 0 0.65 0.5 Induction ratio i 1.3 i 2 Jet drop - Jet rise y 1.3 y 2 Grille distance z(m)> x 0.20 x 0.25 Layout example assume: grille AL 5 Find: H = 125 mm - Pressure loss L = 625 mm - Sound level (with coanda effect) - End velocity of jet V ZU = 400 m³/h - Critical throw Δt = 4 K - Induction ratio x = 6.0 m - Temperature ratio Solution: Pressure loss Page 10: Δp t = 22 Pa Weighted sound power level Page 10 + Page 11: v Stirn = 1.8 m/s L WA1 = 36 db(a) L WA = 36 db(a) - 2 = 34 db(a) End velocity of jet Page 12: v max = 0.5 m/s Critical throw Page 14: x kr = 5.8 m Induction ratio Page 16: i = 7,5 Temperature ratio Page 16: TV = 0,2 Legend V ZU (m³/h) [l/s] = Supply air volume V AB (m³/h) [l/s] = Return air volume V X (m³/h) [l/s] = total air jet volume at point x v max (m/s) = Maximum end velocity of jet v K (m/s) = Duct velocity v stirn (m/s) = Intake velocity, blower stream velocity, outflow velocity, relative to A stirn A stirn (m²) = Face area x (m) = horizontal throw y (m) = vertical throw x kr (m) = Critical throw ρ (kg/m³) = Density Δp t (Pa) = Pressure loss L WA [db(a)] = A-weighted sound power level [L WA = L WA1 + KF] L WA1 [db(a)] = A-weighted sound power level, relative to A stirn = 0.08 m² KF (-) = Correction factor ΔT O (K) = Temperature difference between supply air and room temperatures (ΔT O = t ZU - t R ) ΔT OH (K) = Temperature difference between supply air and room temperature in heating mode (ΔT OH = t zu - t RH ) ΔT X (K) = Temperature difference at point x t zu ( C) = Supply air temperature t R ( C) = Room temperature i (-) = Induction ratio (i = V X / V ZU ) TV (-) = Temperature ratio (TV = ΔT X / ΔT O ) z (m) = Minimum clearance between two grilles x (m) 0.2 RH (mm) = Room height RB (mm) = Room width L (mm) = Length H (mm) = Height 01/13-17
Order details Ventilation grille Front-side horizontal pivoting blades Front-side horizontal pivoting blades, with vertical pivoting blades Front-side horizontal pivoting on the front, with hit-andmiss damper Front-side horizontal pivoting blades, with vertical pivoting blades and hitand-miss damper Front side vertical pivoting blades Front side vertical pivoting blades, with horizontal pivoting blades Front side vertical pivoting on the front, with hit-andmiss damper Front side vertical pivoting blades, with horizontal pivoting blades and hitand-miss damper AL 1 AL 2 AL 5 AL 6 AL 11 AL 12 AL 15 AL 16 made of aluminium natural colour anodised (E6/EV1) Frame and blades made of aluminium painted to a RAL colour Accessories: Screw mounting -SM Plenum box (for types AL 1 / AL 2 / AL 11 / AL 12 only) -ASK Concealed mounting -VM 11 (only possible in conjunction mounting frame E1 or plenum box) Mounting frame -E1 -VM 12 (standard) without damper - with damper -DK without rubber lip seal - with rubber lip seal -GD without insulation - with insulation internal (-Ii) with insulation external (-Ia) Order example: AL 5-VM12-ASK-DK-GD Unless stated otherwise, the thick-frame model will be delivered! 01/13-18
Specification texts Supply and return air grilles, type AL 1, comprising front frame, with front-side horizontal pivoting blades and concealed mounting VM 12. Frame and blades made of natural anodised aluminium E6/EV1. Assembly parts made of electrolytically galvanised sheet steel. Product: SCHAKO type AL 1 - Type AL 2, additionally with vertical, pivoting blades - Type AL 5, additionally with hit-and-miss damper - Type AL 6, additionally with vertical, pivoting blades and hit-and-miss damper - with concealed mounting VM 11 (only available in connection with mounting frame E1 or plenum box) - with screw mounting (-SM) Accessories: - with mounting frame (-E1) - with plenum box (-ASK) made of galvanised sheet steel (only possible without hit-and-miss damper) - with an adjustable damper (-DK) in the plenum box for an easy air volume regulation - with rubber lip seal (-GD), made of special rubber, at the connection spigot. - with thermal insulation - internal (-Ii) - external (-Ia) Supply and return air grilles, type AL 11, comprising front frame, with front side vertical, pivoting blades and concealed mounting VM 12. Frame and blades made of natural anodised aluminium E6/EV1. Assembly parts made of electrolytically galvanised sheet steel. Product: SCHAKO type AL 11 - Type AL 12, additionally with horizontal, pivoting blades. - Type AL 15, additionally with hit-and-miss damper - Type AL 16, additionally with horizontal, pivoting blades and hit-and-miss damper - with concealed mounting VM 11 (only available in connection with mounting frame E1 or plenum box) - with screw mounting (-SM) Accessories: - with mounting frame (-E1) - with plenum box (-ASK) made of galvanised sheet steel (only possible without hit-and-miss damper) - with an adjustable damper (-DK) in the plenum box for an easy air volume regulation - with rubber lip seal (-GD), made of special rubber, at the connection spigot. - with thermal insulation - internal (-Ii) - external (-Ia) Supply and return air bands, type AL 11, comprising 2-part or multi-part front frame, with front side vertical pivoting blades with screw mounting (-SM). Frames and blades made of natural anodized aluminium(e6/ev1). Assembly parts made of electrolytically galvanised sheet steel. Product: SCHAKO type AL 11 (band) - Type AL 12 (band), additionally with horizontal, pivoting air deflection blades. - Type AL 15 (band), additionally with hit-and-miss damper - Type AL 16 (band), additionally with horizontal, pivoting air deflection blades and hit-and-miss damper Accessories: - with 2- or multi-part mounting frame (-E1) 01/13-19