Combination Louver/Damper
Concealed Actuator
Application and Design
EACC-601 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, operable blades and a concealed actuator
within the louver sill. 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.
Standard Construction
Frame � � � � � � � �Heavy gauge extruded 6063-T5 aluminum,
6 in. x 0.125 in. nominal wall thickness
Blades � � � � � � � �Stationary blade: drainable design, heavy gauge
extruded 6063-T5 aluminum, 0.081 in. nominal wall
thickness, positioned at 45º angles on approximately
6 in. centers
Operable blade: heavy gauge extruded 6063-T5
aluminum, 0.081 nominal wall thickness
Seals . . . . . . . . .Dual-durometer extruded vinyl blade seals
Compressible stainless steel jamb seals
Temperature
Restrictions . . . .(-20º F) - (+180ºF)
Linkage . . . . . . .Side linkage out of airstream (concealed in frame)
Bearings . . . . . .Synthetic sleeve type
Axles . . . . . . . . .½ in. dia. zinc plated steel
Actuator . . . . . .Invensys MA series, 2 positioned spring return
Construction . . .Mechanically fastened
Birdscreen � � � � �3/4 in. x 0.051 in. flattened expanded aluminum in
removable frame, inside mount (rear)
Finish � � � � � � � � �Mill
Minimum Size � �18 in. W x 24 in. H
Maximum Single
Section Size � � � 60 in. W or 96 in. H
EACC-601
Options (at additional cost)
• A variety of bird and insect screens
• Extended sill
• Filter rack
• Flanged frame
• Hinged frame
• Security bars
• 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.
900 950 1000 1050 1100 1150 1200 1250 1300
0.00
0.05
0.10
0.15
0.20
0.25
0.30
Test Size 48 in. x 48 in.
Test Period 15 minutes
Standard Air - .075 lb/ft
3
ml/m2
m/s:
ft/min:
oz/ft2
4.5 5.5 6.0
0
20
40
60
80
Water Penetration per Unit Free Area
Free Area Velocity
Pa
in. wg
Static Pressure Drop
Free Area Chart (Sq. ft.)
Louver
Height
Inches
18 21 23 26 29 32 35 38 41 44 48 51 54 57 60
24 0.39 0.47 0.52 0.60 0.67 0.75 0.83 0.90 0.98 1.06 1.16 1.24 1.31 1.39 1.47
28 0.82 0.98 1.08 1.24 1.40 1.56 1.73 1.89 2.05 2.21 2.42 2.58 2.74 2.90 3.06
32 0.82 0.98 1.08 1.24 1.40 1.56 1.73 1.89 2.05 2.21 2.42 2.58 2.74 2.90 3.06
36 1.24 1.48 1.65 1.89 2.14 2.38 2.62 2.87 3.11 3.36 3.68 3.92 4.17 4.41 4.66
40 1.61 1.93 2.14 2.46 2.77 3.09 3.41 3.72 4.04 4.36 4.78 5.10 5.42 5.73 6.05
44 1.66 1.99 2.21 2.54 2.87 3.19 3.52 3.85 4.18 4.50 4.94 5.27 5.60 5.92 6.25
48 2.09 2.50 2.77 3.19 3.60 4.01 4.42 4.83 5.24 5.65 6.20 6.61 7.02 7.43 7.84
52 2.09 2.50 2.77 3.19 3.60 4.01 4.42 4.83 5.24 5.65 6.20 6.61 7.02 7.43 7.84
56 2.51 3.01 3.34 3.83 4.33 4.82 5.32 5.81 6.31 6.80 7.46 7.95 8.45 8.94 9.44
60 2.94 3.52 3.90 4.48 5.06 5.64 6.21 6.79 7.37 7.95 8.72 9.30 9.88 10.45 11.03
64 2.94 3.52 3.90 4.48 5.06 5.64 6.21 6.79 7.37 7.95 8.72 9.30 9.88 10.45 11.03
68 3.36 4.02 4.47 5.13 5.79 6.45 7.11 7.77 8.44 9.10 9.98 10.64 11.30 11.96 12.63
72 3.36 4.02 4.47 5.13 5.79 6.45 7.11 7.77 8.44 9.10 9.98 10.64 11.30 11.96 12.63
76 3.79 4.53 5.03 5.78 6.52 7.27 8.01 8.76 9.50 10.25 11.24 11.98 12.73 13.48 14.22
80 4.21 5.04 5.59 6.42 7.25 8.08 8.91 9.74 10.57 11.39 12.50 13.33 14.16 14.99 15.81
84 4.21 5.04 5.59 6.42 7.25 8.08 8.91 9.74 10.57 11.39 12.50 13.33 14.16 14.99 15.81
88 4.64 5.55 6.16 7.07 7.98 8.89 9.81 10.72 11.63 12.54 13.76 14.67 15.58 16.50 17.41
92 5.01 5.99 6.65 7.64 8.62 9.61 10.59 11.58 12.56 13.55 14.86 15.85 16.83 17.82 18.80
96 5.06 6.06 6.72 7.72 8.71 9.71 10.70 11.70 12.70 13.69 15.02 16.02 17.01 18.01 19.00
Louver Width Inches
EACC-601PERFORMANCE DATA
Combination Louver/Damper
Air Leakage
(with damper section closed)
Test size 48 in. x 48 in.
kPa
in. wg
2
0.475
0.45
0.425
1
0.9
0.4
0.8
0.7
0.375
0.6
0.35
0.5
0.4
0.325
Pressure
0.3
0.3
0.2
0.275
0.25
0.1
0.225
0.09
2
112345678910
cfm/ft
2
cmh/m
20 30 40 50 60 70 80 90100 200
Leakage
Extruded Aluminum
Airflow Resistance (Standard Air - �075 lb/ft
1
0.9
200
100
90
80
70
60
50
40
30
0.09
20
0.08
0.07
0.06
0.05
10
0.04
9
8
0.03
7
6
5
0.02
ft/min:
Model EACC-601 resistance to airflow (pressure drop)
m/s:
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.
Test Size 48 in. x 48 in.
0.8
Standard Air - .075 lb/ft
0.7
0.6
0.5
0.4
0.3
0.2
0.1
200 300 500 600 700 800 900 1000 2000 3000
3
Exhaust
Intake
400
2345678910
Free Air Velocity
3
) Water Penetration (Standard Air - �075 lb/ft3)
Test size 48 in. x 48 in. Test duration of 15 min.
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 EACC-601 is 1020 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
factors including good engineering judgement in selecting louvers.