Combination Louver/Damper Drainable Blade
ECD-401Combination Louver/DamperDrainable BladeApplication and DesignECD-401 is a combination louver/damper designed to protect airintake and exhaust openings in building exterior walls that, at times,require tight air shut off. Design incorporates a drainable head member,drainable stationary blades and operable blades with exposed bladelinkage. When the operable blades are open, airflow is permittedthrough the louver, when the blades are closed, a tight seal is createdto prevent the passage of air. The ECD-401 is an extremely efficientlouver with AMCA LICENSED PERFORMANCE DATA enablingdesigners to select and apply with confidence.Standard ConstructionFrame Heavy gauge extruded 6063-T5 aluminum,4 in. x 0.081 in. nominal wall thicknessBlades Drainable design, heavy gauge extruded6063-T5 aluminum, 0.081 in. nominal wall thickness,positioned at 37º and 45º angles on approximately4 in. centersSeals Dual-durometer extruded vinyl blade and jamb sealsTemperatureRestrictions (-20º F) - ( 180ºF)Linkage Exposed on-blade linkageConstruction Mechanically fastenedBirdscreen 3/4 in. x 0.051 in. flattened expanded aluminum inremovable frame, inside mount (rear)Finish MillMinimum Size 12 in. W x 12 in. HMaximum SingleSection Size 120 in. W or 120 in. H (limited to 70 sq. ft.)Options (at additional cost) A variety of bird and insect screens A variety of electric, pneumatic or manual actuators Extended sill Filter rack Flanged frame Glazing adaptor Hinged frame Security bars 0.125 in. nominal wall thickness A variety of architectural finishes including:Clear anodizeIntegral color anodizeBaked enamel paintKynar paint*Width and height dimensions furnishedapproximately ¼ inch under size.
PERFORMANCE DATAECD-401Combination Louver/DamperExtruded AluminumFree Area Chart (Sq. ft.)(with damper section closed)Test size 48 in. x 48 in.Louver Width InchesLouverHeightInches 12kPain. wg224360.29 0.68 0.67 1.54 2.413.284.155.035.90361.08 2.49 3.905.306.718.129.52 10.93 12.33 13.74481.55 3.57 5.587.609.62 11.63 13.65 15.66 17.68 19.696.777.640.4750.450.4258.51601.93 4.44 6.94722.34 5.38 8.42 11.46 14.50 17.54 20.58 23.62 26.66 29.70842.81 6.46 10.11 13.76 17.41 21.06 24.71 28.36 32.01 35.66963.19 7.33 11.47 15.60 19.74 23.88 28.02 32.16 36.30 40.431083.60 8.28 12.95 17.62 22.30 26.97 31.64 36.32 40.99 45.671204.07 9.36 14.64 19.92 25.20 30.49 35.77 41.05 46.34 51.629.44 11.95 14.45 16.96 19.46 21.97 24.4710.40.3750.90.80.70.6Pressure12Air ck Fan Corporation certifies that the ECD-401louvers shown herein are licensed to bear the AMCA Seal.The ratings shown are based on tests and proceduresperformed in accordance with AMCA Publication 511and comply with the requirements of the AMCA CertifiedRatings Program. The AMCA Certified Ratings Seal appliesto air performance and water penetration ratings.Airflow ResistancePa200(Standard Air - .075 503.544.5555 60 65 70 75 80 85 90LeakageWater Penetration(Standard Air - .075 lb/ft3)Test size 48 in. x 48 in. Test duration of 15 min.in. wg10.90.8Test Size 48 in. x 48 in.0.7Standard Air - .075 hStatic Pressure /min:m/s:2003004002500 600 700 800 900 100034520006730008 9 10Free Air VelocityModel ECD-401 resistance to airflow (pressure drop) variesdepending on louver application (air intake or air exhaust).Free area velocities (shown) are higher than averagevelocity through the overall louver size. See louver selectioninformation.The AMCA Water Penetration Test provides a method for comparingvarious louver models and designs as to their efficiency in resistingthe penetration of rainfall under specific laboratory test conditions. Thebeginning point of water penetration is defined as that velocity where thewater penetration curve projects through .01 oz. of water (penetration)per sq. ft. of louver free area. *The beginning point of waterpenetration for Model ECD-401 is 1018 fpm free area velocity.These perfor mance ratings do not guarantee a louver to be weather proof or stormproof and should be used in combination with other factorsincluding good engineering judgement in selecting louvers.
INSTALLATION DETAILSECD-401Combination Louver/DamperExtruded AluminumMaximum Size and Installation InformationThe maximum single section size for the ECD-401 is 120 in. W x 84 in. H or 84 in. W x 120 in. H (70 sq. ft). Larger openings requirefield assembly of multiple louver sections to make up the overall opening size. Individual louver sections are designed to withstanda 25 PSF wind load (please consult Greenheck if the louvers must withstand higher wind-loads). Structural reinforcing membersmay be required to adequately support and install multiple louver sections within a large opening. Structural reinforcing membersalong with any associated installation hardware is not provided by Greenheck unless indicated otherwise by Greenheck. Optionsand accessories including, but not limited to, screens, filter racks, louver doors, and blank off panels are not subject to structuralanalysis unless indicated otherwise by Greenheck. Additional information on louver installation may be found in AMCA Publication#501, Louver Application Manual.Minimum Single Section Size12 in. W x 12 in. HMaximum Single Section Size70 sq. ft.
PRODUCT DETAILSECD-401Combination Louver/DamperExtruded Aluminum
OPTION DRAWINGSECD-401Combination Louver/DamperExtruded AluminumFINISHESFinish TypeDescription/ApplicationColor SelectionStandard Colors:Any of the 27 standard colors shown can be furnishedin 70% or 50% Kynar , 100% Fluoropolymer or BakedEnamel.Standard Warranty(Aluminum)AAMA 2605100% Fluoropolymer (FEVE)2-Coat 70% Kynar (PVDF)3-Coat 70% Kynar (PVDF)4-Coat 70% Kynar (PVDF)“Best.” The premier finish for extruded aluminum. Tough,long-lasting coating has superior color retention andabrasive properties. Resists chalking, fading, chemicalabrasion and weathering.AAMA 260450% Kynar / Acroflur “Better.” Tough, long-lasting coating has excellent colorretention and abrasive properties. Resists chalking, fading,chemical abrasion and weathering.AAMA 2603Baked Enamel“Good.” Provides good adhesion and resistance toweathering, corrosion and chemical stain.AA-M10C22A42Integral Color Anodize“Two-step” anodizing is produced by following the normalanodizing step with a second, colorfast process.Light, Medium, Dark or Extra Dark Bronze;Champagne; Black5 yearsAA-M10C22A41Clear Anodize 215 R-1Clear, colorless and hard oxide aluminum coating thatresists weathering and chemical attack.Clear5 yearsAA-M10C22A31Clear Anodize 204Clear, colorless and hard oxide aluminum coating thatresists weathering and chemical attack.Clear1 YearPrime CoatLouvers or architectural products shall be cleaned, pre-treated and receive a prime coat finish suitable for fieldpainting. Greenheck does not recommend prime coat or field painting of materials.n/aMillMaterials may be supplied in natural aluminum or galvanized steel finish when normal weathering is acceptable andthere is no concern for color or color change.n/aMica Colors:Greenheck offers 6 standard Mica colors for 70%Kynar or 100% Fluoropolymer.Custom Colors:Custom color matching is available. Consult yourGreenheck representative for cost and/or lead-timeimplications if a custom color is required.10 Years(20 Years Optional)5 Years1 YearFinishes meet or exceed AAMA 2605, AAMA 2604, and AAMA 2603 requirements. Please consult www.greenheck.com for complete information on standard andextended paint warranties. Paint finish warranties are not applicable to steel products.ECD-401August 2021Copyright 2021 Greenheck Fan CorporationGreenheck Fan Corporation reserves the rightto make product changes without notice.
drainable stationary blades and operable blades with exposed blade linkage. When the operable blades are open, airflow is permitted through the louver, when the blades are closed, a tight seal is created to prevent the passage of air. The ECD-401 is an extremely effi
A number of investigators have evaluated design features associated with louver separators. These design features include the louver angle, louver length, louver spacing, louver overlap, scavenge flow rate, and Reynolds number. Past studies show effects of these design parameters on pressure losses and particle separation.
The electrical faults were the result of a damper blade that was loose within the isophase bus ductwork, creating arcing between the bus, damper blade, and duct. The loose damper blade is attributed to damper failure based on the determination that the operational isophase bus duct airflow rate exceeded the design flow rate for the backdraft
ment or set the desired up/down air flow direction. The louver changes 6 degree in angle for each press. If keep pushing more than 2 seconds, the louver will swing up and down automatically. Used to stop or start vertical louver movement and set the desired left/right air flow direction. The vertical louver changes 6 degree in angle for each press.
USE blades rated at 2700 FPM or greater. MAKE SURE the blade teeth point clown and towards the table. ;.,-." _,-6. r BLADE GUIDES, SUPPORT BEARINGS, AND BLADE TENSION must be properly adjusted to avoid accidental blade contact and to minimize blade breakage. To maximize blade support, always adjust the upper blade guide and blade guard so that .
FIG. 1: (a)Pendulum tuned mass damper in an single-degree-of-freedom system, (b)Motion of a pendulum tuned mass damper, (3)Properties of a pendulum tuned mass damper u is the displacement of the pendulum, L is the length of the cable. Image is reproduced from Ref. [1] The most famous case of using pendulum tuned mass damper is the Taipei 101 .
This project makes use of a mass-spring-damper model. A mass-spring-damper system describes a mass that is connected to both a spring and a viscous damper. The total amount of force applied to the mass is thus the sum of the force applied by the spring and the force applied by the damper. The spring force can be calculated as !! !"
B1441 - Air Mix Damper Control Servo Motor Circuit (Passenger Side). B1442 - Air Inlet Damper Control Servo Motor Circuit. B1443 - Air Outlet Damper Control Servo Motor Circuit. B1445 - Passenger Side Cool Air Bypass Damper Control. B1446 - Air Mix Damper Control Servo Motor Circuit (Driver Side).
A02 x 2 One mark for the purpose, which is not simply a tautology, and one for development. e.g. The Profit and Loss Account shows the profit or loss of FSC over a given period of time e.g. 3 months, 1 year, etc. (1) It describes how the profit or loss arose – e.g. categorising costs between cost of sales and operating costs/it shows both revenues and costs (1) (1 1) (2) 3(b) AO2 x 2 The .
