ECD-401
Combination Louver/Damper
Drainable Blade
Application and Design
ECD-401 is a combination louver/damper designed to protect air intake 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 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 efficient louver with AMCA LICENSED PERFORMANCE DATA enabling designers to select and apply with confidence.
Standard Construction
Frame . . . . . . . .Heavy gauge extruded 6063-T5 aluminum, 4 in. x 0.081 in. nominal wall thickness
Blades . . . . . . . .Drainable design, heavy gauge extruded
6063-T5 aluminum, 0.081 in. nominal wall thickness, positioned at 37º and 45º angles on approximately 4 in. centers
Seals . . . . . . . . .Dual-durometer extruded vinyl blade and jamb seals
Temperature
Restrictions. . . .(-20º F) - (+180ºF)
Linkage . . . . . . .Exposed on-blade linkage
Bearings . . . . . .Synthetic sleeve type
Construction . . .Mechanically fastened
Birdscreen. . . . .3/4 in. x 0.051 in. fl attened expanded aluminum in removable frame, inside mount (rear)
Finish. . . . . . . . .Mill
Minimum Size . .12 in. W x 12 in. H
Maximum Single
Section 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 anodize
Integral color anodize
Baked enamel paint
Kynar paint
*Width and height dimensions furnished approximately ¼ inch under size.
PERFORMANCE DATA |
ECD-401 |
Free Area Chart (Sq. ft.)
Louver |
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Louver Width Inches |
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Height |
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Inches |
12 |
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24 |
36 |
48 |
60 |
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72 |
84 |
96 |
108 |
120 |
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12 |
0.29 |
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0.68 |
1.06 |
1.44 |
1.82 |
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2.20 |
2.59 |
2.97 |
3.35 |
3.73 |
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24 |
0.67 |
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1.54 |
2.41 |
3.28 |
4.15 |
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5.03 |
5.90 |
6.77 |
7.64 |
8.51 |
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36 |
1.08 |
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2.49 |
3.90 |
5.30 |
6.71 |
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8.12 |
9.52 |
10.93 |
12.33 |
13.74 |
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48 |
1.55 |
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3.57 |
5.58 |
7.60 |
9.62 |
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11.63 |
13.65 |
15.66 |
17.68 |
19.69 |
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60 |
1.93 |
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4.44 |
6.94 |
9.44 |
11.95 |
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14.45 |
16.96 |
19.46 |
21.97 |
24.47 |
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72 |
2.34 |
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5.38 |
8.42 |
11.46 |
14.50 |
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17.54 |
20.58 |
23.62 |
26.66 |
29.70 |
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84 |
2.81 |
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6.46 |
10.11 |
13.76 |
17.41 |
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21.06 |
24.71 |
28.36 |
32.01 |
35.66 |
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96 |
3.19 |
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7.33 |
11.47 |
15.60 |
19.74 |
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23.88 |
28.02 |
32.16 |
36.30 |
40.43 |
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108 |
3.60 |
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8.28 |
12.95 |
17.62 |
22.30 |
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26.97 |
31.64 |
36.32 |
40.99 |
45.67 |
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120 |
4.07 |
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9.36 |
14.64 |
19.92 |
25.20 |
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30.49 |
35.77 |
41.05 |
46.34 |
51.62 |
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Greenheck Fan Corporation |
certifies that the ECD-401 |
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louvers shown herein are licensed to bear the AMCA Seal. |
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The ratings shown are based on tests and procedures |
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performed in accordance with AMCA Publication 511 |
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and comply with the requirements of the AMCA Certified |
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Ratings Program. The AMCA Certified Ratings Seal applies |
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to air performance and water penetration ratings. |
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Airflow Resistance (Standard Air - .075 lb/ft3) |
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Combination Louver/Damper
Extruded Aluminum
Air Leakage (with damper section closed)
Test size 48 in. x 48 in.
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kPa |
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in. wg |
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0.475 |
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2 |
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0.45 |
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0.425 |
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1 |
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0.4 |
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0.9 |
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0.8 |
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0.375 |
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0.7 |
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0.35 |
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0.6 |
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Pressure |
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0.5 |
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0.325 |
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0.4 |
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0.3 |
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0.3 |
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0.2 |
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0.275 |
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0.25 |
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0.1 |
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0.225 |
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0.09 |
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cfm/ft 2 |
1 |
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1.5 |
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2 |
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2.5 |
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3 |
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3.5 |
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4 |
4.5 |
5 |
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cmh/m 2 |
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20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
70 |
75 80 85 90 |
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Leakage
Water Penetration (Standard Air - .075 lb/ft3)
Test size 48 in. x 48 in. Test duration of 15 min.
Static Pressure Drop
Pa |
in. wg |
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1 |
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0.9 |
2000.8
0.7
0.6
0.5
100 |
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0.4 |
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90 |
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80 |
0.3 |
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70 |
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60 |
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50 |
0.2 |
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40 |
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30 |
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0.1 |
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0.09 |
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200.08
0.07
0.06
0.05
10 |
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0.04 |
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9 |
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8 |
0.03 |
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7 |
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6 |
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5 |
0.02 |
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ft/min: 200
m/s:
Test Size 48 in. x 48 in.
3
Standard Air - .075 lb/ft
Intake |
Exhaust |
300 400 500 600 700 800 900 1000 2000 3000
2 3 4 5 6 7 8 9 10
Free Air Velocity
Model ECD-401 resistance to airflow (pressure drop) varies depending on louver application (air intake or air exhaust). Free area velocities (shown) are higher than average velocity through the overall louver size. See louver selection information.
The AMCA Water Penetration Test provides a method for comparing various louver models and designs as to their efficiency in resisting the penetration of rainfall under specific laboratory test conditions. The
beginning point of water penetration is defined as that velocity where the water penetration curve projects through .01 oz. of water (penetration) per sq. ft. of louver free area. *The beginning point of water penetration for Model ECD-401 is 1018 fpm free area velocity.
These performance ratings do not guarantee a louver to be weatherproof or stormproof and should be used in combination with other factors including good engineering judgement in selecting louvers.
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