PERFORMANCE DATA

WATER PENETRATIONTest size 48" wide x 48" high (1219 x 1219)

Beginning point of water penetration at .01 oz./sq. ft. is 803 fpm (245 m/min).

AMCA Standard 500 provides a reasonable basis for testing andrating louvers. Testing to AMCA 500 is performed under a certainset of laboratory conditions. This does not guarantee that otherconditions will not occur in the actual environment where louversmust operate.

The louver system should be designed with a reasonable safetyfactor for louver performance. To ensure protection from watercarryover, design with a performance level somewhat below maxi-mum desired pressure drop and .01 oz./sq. ft. of water penetration.

Oz.

Wat

er/f

t2an

d (

ounc

es w

ater

/m2 )

of

Fre

e A

rea

15 m

in. t

est

per

iod

800(244)

850(259)

900(274)

950(290)

0.3(3.23)

0.25(2.69)

0.2(2.15)

0.15(1.61)

0.1 (1.08)

0.05(.54)

0

Free Area Velocity in feet and (meters) per minuteStandard air .075 lb/ft3

FREE AREA GUIDEFree Area Guide shows free area in ft2 and m2 for various sizes of ELF375X and ELF375XH.

Hei

gh

t –

Inch

es a

nd

Met

ers

Width – Inches and Meters

0.260.020.610.060.870.081.140.111.330.121.600.151.860.172.130.202.400.222.590.242.850.263.120.293.390.323.660.34

120.3018

0.4624

0.6130

0.7636

0.9142

1.0748

1.2254

1.3760

1.5266

1.6872

1.8378

1.9884

2.1390

2.29

0.410.040.970.091.400.131.830.172.130.202.550.242.980.283.410.323.840.364.140.384.570.425.000.465.430.505.860.54

0.560.051.330.121.920.182.510.232.920.273.510.334.100.384.690.445.280.495.690.536.280.586.870.647.460.698.050.75

0.710.071.700.162.450.233.200.303.720.354.470.425.220.495.970.556.720.627.240.677.990.748.740.819.500.88

10.250.95

0.870.082.060.192.970.283.890.364.520.425.430.506.340.597.250.678.160.768.790.829.710.90

10.620.99

11.531.07

12.441.16

1.020.092.430.233.500.334.570.425.310.496.390.597.460.698.530.799.610.89

10.350.96

11.421.06

12.491.16

13.571.26

14.641.36

1.170.112.790.264.020.375.260.496.110.577.340.688.580.809.810.91

11.051.03

11.901.11

13.131.22

14.371.34

15.601.00

16.831.56

1.330.123.150.294.550.425.940.556.910.648.300.779.700.90

11.091.03

12.491.16

13.451.25

14.841.38

16.241.51

17.631.64

19.031.77

1.480.143.520.335.070.476.630.627.700.729.260.86

10.821.01

12.371.15

13.931.29

15.001.39

16.561.54

18.111.68

19.671.83

21.231.97

1.630.153.880.365.600.527.330.688.500.79

10.220.95

11.931.11

13.651.27

15.371.43

16.551.54

18.271.70

19.991.86

21.702.02

23.422.18

1.790.174.250.396.120.578.000.749.300.86

11.181.04

13.051.21

14.931.39

16.811.56

18.111.68

19.981.86

21.862.03

23.742.21

25.622.38

1.940.184.610.436.650.628.690.81

10.090.94

12.131.13

14.171.32

16.211.51

18.251.70

19.661.83

21.702.02

23.742.21

25.772.39

27.812.58

2.090.194.970.467.170.679.370.87

10.891.01

13.091.22

15.291.42

17.491.63

19.691.83

21.211.97

23.412.18

25.612.38

27.812.58

30.012.79

2.240.215.340.507.700.72

10.060.93

11.691.09

14.051.31

16.411.52

18.771.74

21.131.96

22.762.12

25.122.33

27.482.55

29.842.77

32.202.99

2.400.225.700.538.220.76

10.741.00

12.491.16

15.011.39

17.531.63

20.051.86

22.572.10

24.312.26

26.832.49

29.362.73

31.882.96

34.403.20

2.550.246.060.568.750.81

11.431.06

13.281.23

15.961.48

18.651.73

21.331.98

24.012.23

25.862.40

28.552.65

31.232.90

33.913.15

36.603.40

2.700.256.430.609.270.86

12.121.13

14.081.31

16.921.57

19.771.84

22.612.10

25.452.37

27.422.55

30.262.81

33.103.08

35.953.34

38.793.60

2.860.276.790.639.800.91

12.801.19

14.881.38

17.881.66

20.891.94

23.892.22

26.902.50

28.972.69

31.972.97

34.983.25

37.983.53

40.993.81

3.010.287.160.67

10.320.96

13.491.25

15.671.46

18.841.75

22.002.04

25.172.34

28.342.63

30.522.84

33.693.13

36.853.42

40.023.72

43.184.01

120.30

180.46

240.61

300.76

360.91

421.07

481.22

541.37

601.52

661.68

721.83

781.98

842.13

902.29

962.44

1022.59

1082.74

1142.90

1203.05

Ruskin Manufacturing Company certi-fies that the ELF375X and ELF375XHLouvers shown herein are licensed tobear the AMCA Seal. The ratings shownare based on tests and procedures per-formed in accordance with AMCAPublication 511 and comply with therequirements of the AMCA CertifiedRatings Program. The AMCA CertifiedRatings Seal applies to air performanceratings and water penetration ratingsonly.

Ratings do not include the effect ofa bird screen.

1.00 (25.40).90 (22.86).80 (20.32).70 (17.78).60 (15.24).50 (12.70)

.40 (10.16)

.30 (7.62)

.20 (5.08)

.10 (2.54)

.09 (2.29)

.08 (2.03)

.07 (1.78)

.06 (1.52)

.05 (1.27)

.04 (1.02)

.03 (.76)

.02 (.51)

.01 (.25)

100

(30)

200

(61)

300

(91)

400

(122

)

500

(152

)

600

(183

)70

0 (2

13)

800

(244

)90

0 (2

74)

1000

(3

05)

2000

(6

10)

3000

(9

14)

4000

(12

19)

5000

(152

4)

6000

(18

29)

7000

(21

34)

8000

(24

38)

9000

(27

34)

10,0

00 (

3048

)

Sta

tic

Pre

ssu

re D

rop

in In

ches

w.g

. an

d(m

m)

Air Velocity in feet and (meters) per minute through Free Area

EXHAUST MODEINTAKE MODE

PRESSURE DROP

AIRLINE LOUVERSLSA4W38

Ratings do not include the effects of a bird screen

SUGGESTED SPECIFICATION

PERFORMANCE DATA

WATER PENETRATIONTest size 48" wide x 48" high (1219 x 1219)

Beginning point of water penetration at .01 oz./sq. ft. is 803 fpm (245 m/min).

Furnish and install louvers as hereinafter specified where shown onplans or as described in schedules. Louvers shall be stationarytype with downspouts in jambs and mullions. Louvers shall have aminimum of 54% free area based on a 48" wide x 48" high (1219 x1219) size. Stationary blades shall be contained within a 4" (102)frame. Louver components (heads, jambs, sills, blades, & mullions)shall be factory assembled by the louver manufacturer. Louversizes too large for shipping shall be built up by the contractor fromfactory assembled louver sections to provide overall sizes required.Louver design shall limit span between visible mullions to 10 feet(3) and shall incorporate structural supports required to withstand awind load of 20 lbs. per sq. ft. (.96kPa) (equivalent of a 90 mph[145 KPH] wind – specifier may substitute any loading required).

Louvers shall be Ruskin Model ELF375X or ELF375XH extruded6063T5 aluminum alloy construction as follows:

Frame: 4" (102) deep, ELF375X - .081" (2.1) wall thickness.ELF375XH - .125" (3.2) wall thickness

Blades: ELF375X - .081" (2.1) wall thickness. ELF375XH -.125" (3.2) wall thickness at 371/2° angle and spacedapproximately 53/32" (129) center to center.

Screen: 3/4" x .051 (19 x 1.3) expanded, flattened aluminum in removable frame.

Finish: Select finish specification from Ruskin FinishesBrochure.

Published louver performance data bearing the AMCA CertifiedRatings Seal for Air Performance & Water Penetration must be sub-mitted for approval prior to fabrication and must demonstrate pres-sure drop and water penetration equal to or less than the Ruskinmodel specified.

AMCA Standard 500 provides a reasonable basis for testing andrating louvers. Testing to AMCA 500 is performed under a certainset of laboratory conditions. This does not guarantee that otherconditions will not occur in the actual environment where louversmust operate.

The louver system should be designed with a reasonable safetyfactor for louver performance. To ensure protection from watercarryover, design with a performance level somewhat below maxi-mum desired pressure drop and .01 oz./sq. ft. of water penetration.

Oz.

Wat

er/f

t2an

d (

ounc

es w

ater

/m2 )

of

Fre

e A

rea

15 m

in. t

est

per

iod

800(244)

850(259)

900(274)

950(290)

0.3(3.23)

0.25(2.69)

0.2(2.15)

0.15(1.61)

0.1 (1.08)

0.05(.54)

0

Free Area Velocity in feet and (meters) per minuteStandard air .075 lb/ft3

FREE AREA GUIDEFree Area Guide shows free area in ft2 and m2 for various sizes

Hei

gh

t –

Inch

es a

nd

Met

ers

Width – Inches and Meters

0.260.020.610.060.870.081.140.111.330.121.600.151.860.172.130.202.400.222.590.242.850.263.120.293.390.323.660.34

120.3018

0.4624

0.6130

0.7636

0.9142

1.0748

1.2254

1.3760

1.5266

1.6872

1.8378

1.9884

2.1390

2.29

0.410.040.970.091.400.131.830.172.130.202.550.242.980.283.410.323.840.364.140.384.570.425.000.465.430.505.860.54

0.560.051.330.121.920.182.510.232.920.273.510.334.100.384.690.445.280.495.690.536.280.586.870.647.460.698.050.75

0.710.071.700.162.450.233.200.303.720.354.470.425.220.495.970.556.720.627.240.677.990.748.740.819.500.88

10.250.95

0.870.082.060.192.970.283.890.364.520.425.430.506.340.597.250.678.160.768.790.829.710.90

10.620.99

11.531.07

12.441.16

1.020.092.430.233.500.334.570.425.310.496.390.597.460.698.530.799.610.89

10.350.96

11.421.06

12.491.16

13.571.26

14.641.36

1.170.112.790.264.020.375.260.496.110.577.340.688.580.809.810.91

11.051.03

11.901.11

13.131.22

14.371.34

15.601.00

16.831.56

1.330.123.150.294.550.425.940.556.910.648.300.779.700.90

11.091.03

12.491.16

13.451.25

14.841.38

16.241.51

17.631.64

19.031.77

1.480.143.520.335.070.476.630.627.700.729.260.86

10.821.01

12.371.15

13.931.29

15.001.39

16.561.54

18.111.68

19.671.83

21.231.97

1.630.153.880.365.600.527.330.688.500.79

10.220.95

11.931.11

13.651.27

15.371.43

16.551.54

18.271.70

19.991.86

21.702.02

23.422.18

1.790.174.250.396.120.578.000.749.300.86

11.181.04

13.051.21

14.931.39

16.811.56

18.111.68

19.981.86

21.862.03

23.742.21

25.622.38

1.940.184.610.436.650.628.690.81

10.090.94

12.131.13

14.171.32

16.211.51

18.251.70

19.661.83

21.702.02

23.742.21

25.772.39

27.812.58

2.090.194.970.467.170.679.370.87

10.891.01

13.091.22

15.291.42

17.491.63

19.691.83

21.211.97

23.412.18

25.612.38

27.812.58

30.012.79

2.240.215.340.507.700.72

10.060.93

11.691.09

14.051.31

16.411.52

18.771.74

21.131.96

22.762.12

25.122.33

27.482.55

29.842.77

32.202.99

2.400.225.700.538.220.76

10.741.00

12.491.16

15.011.39

17.531.63

20.051.86

22.572.10

24.312.26

26.832.49

29.362.73

31.882.96

34.403.20

2.550.246.060.568.750.81

11.431.06

13.281.23

15.961.48

18.651.73

21.331.98

24.012.23

25.862.40

28.552.65

31.232.90

33.913.15

36.603.40

2.700.256.430.609.270.86

12.121.13

14.081.31

16.921.57

19.771.84

22.612.10

25.452.37

27.422.55

30.262.81

33.103.08

35.953.34

38.793.60

2.860.276.790.639.800.91

12.801.19

14.881.38

17.881.66

20.891.94

23.892.22

26.902.50

28.972.69

31.972.97

34.983.25

37.983.53

40.993.81

3.010.287.160.67

10.320.96

13.491.25

15.671.46

18.841.75

22.002.04

25.172.34

28.342.63

30.522.84

33.693.13

36.853.42

40.023.72

43.184.01

120.30

180.46

240.61

300.76

360.91

421.07

481.22

541.37

601.52

661.68

721.83

781.98

842.13

902.29

962.44

1022.59

1082.74

1142.90

1203.05

1.00 (25.40).90 (22.86).80 (20.32).70 (17.78).60 (15.24).50 (12.70)

.40 (10.16)

.30 (7.62)

.20 (5.08)

.10 (2.54)

.09 (2.29)

.08 (2.03)

.07 (1.78)

.06 (1.52)

.05 (1.27)

.04 (1.02)

.03 (.76)

.02 (.51)

.01 (.25)

100

(30)

200

(61)

300

(91)

400

(122

)

500

(152

)

600

(183

)70

0 (2

13)

800

(244

)90

0 (2

74)

1000

(3

05)

2000

(6

10)

3000

(9

14)

4000

(12

19)

5000

(152

4)

6000

(18

29)

7000

(21

34)

8000

(24

38)

9000

(27

34)

10,0

00 (

3048

)

Sta

tic

Pre

ssu

re D

rop

in In

ches

w.g

. an

d(m

m)

Air Velocity in feet and (meters) per minute through Free Area

EXHAUST MODEINTAKE MODE

PRESSURE DROP

Ratings do not include the effects of a bird screen

54% free area based on 48" X 48" unit

Cindy M Robinson

Cindy M Robinson

White Background: Button1: Address: 9300 73rd Avenue NorthBrooklyn Park, MN 55428