Greenheck EVH-801 Installation Manual

Wind-Driven Rain Louver

Vertical Blade

Application and Design

EVH-801 is a Wind-Driven Rain louver designed to protect air intake and exhaust openings in building exterior walls that are sensitive to direct water penetration. Design incorporates a drainable head member and vertical rain resistant blades to provide maximum resistance to wind driven rain in even the most extreme weather conditions. The EVH-801 is an AMCA CERTIFIED LOUVER enabling designers to select and apply with confidence.

Standard Construction

Frame � � � � � � � � �Heavy gauge extruded 6063-T5 aluminum,

8 in. x 0.081 in. nominal wall thickness

Blades � � � � � � � � �Vertical rain resistant style, heavy gauge

extruded 6063-T5 aluminum, 0.081 in. nominal wall thickness, positioned on approximately 1.5 in. blade spacing

Construction . . . .Mechanically fastened

Birdscreen � � � � � �3/4 in. x 0.051 in. ﬂattened expanded

aluminum in removable frame, inside mount (rear)

Finish � � � � � � � � � �Mill

Minimum Size � � �12 in. W x 16 in. H

Maximum Single Section Size � � � �60 in. W x 96 in. H

EVH-801

WATER

PENETRATION

AIR

PERFORMANCE

WIND

DRIVEN RAIN

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL, INC.

Options (at additional cost)

• A variety of bird and insect screens

• Blank-off panel

• Clip angles

• Extended sill

• Filter rack

• Flanged frame

• Security bars

• A variety of architectural finishes including: Clear anodize Integral color anodize Baked enamel

Kynar

*Width and height dimensions furnished

approximately ¼ inch under size.

EVH-801PERFORMANCE DATA

Wind-Driven Rain Louver

Extruded Aluminum

Wind-Driven Rain Performance

75 mm/h (3 in./hr) Rainfall &

13 m/s (29 mph) Wind Velocity

Free Area

Velocity

Ventilation Air

Core Velocity

Water

Penetration

202 mm/h (8 in./hr) Rainfall &

22 m/s (50 mph) Wind Velocity

Free Area

Velocity

Ventilation Air

Core Velocity

Water

Penetration

(fpm) (m/s) (fpm) (m/s) Class Effective (fpm) (m/s) (fpm) (m/s) Class Effective

0 0 0 0 0 0 0 0

Discharge Loss Coefcient Classications

1 0.4 and Above Class Effectiveness

2 0.3 to 0.399 A 1 to 0.99

3 0.2 to 0.299 B 0.989 to 0.95

4 0.199 and Below C 0.949 to 0.80

266 1.3 98 0.5 266 1.3 98 0.5

534 2.7 197 1.0 534 2.7 197 1.0

800 4.1 295 1.5 800 4.1 295 1.5

1068 5.4 394 2.0 1068 5.4 394 2.0

1334 6.8 492 2.5 1334 6.8 492 2.5

1553 7.9 573 2.9 A 99.5 1553 7.9 573 3.0

1887 9.6 696 3.5 A 99.5 1846 9.4 681 3.5 A 99.5

2098 10.7 774 3.9 A 99.0 2098 10.7 774 3.9 A 99.3

2340 11.9 863 4.4 B 98.6 2342 11.9 864 4.4 A 99.2

2681 13.6 989 5.0 B 97.2 2638 13.4 973 4.9 B 98.0

WATER

PENETRATION

PERFORMANCE

DRIVEN RAIN

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL, INC.

Certified Ratings Program. The AMCA Certified Ratings Seal applies to air performance, water

penetration, and wind-driven rain ratings.

Greenheck Fan Corporation

certifies that the EVH-801 louvers shown herein are licensed

to bear the AMCA Seal. The

AIR

ratings shown are based on

WIND

tests and procedures performed

in accordance with AMCA

Publication 511 and comply with

the requirements of the AMCA

Discharge Loss Coefﬁcient Class (Intake) = 2

Weather louvers shall be classified by their ability to reject simulated rain. The table shows different classifications based on the maximum simulated rain penetration per square meter (square feet) of louver. Water penetration rating at a given louver face velocity is determined by the water penetration while the louver is subjected to a selected simulated rainfall rate and wind velocity.

Airflow Resistance (Standard Air - �075 lb/ft

)

Water Penetration

Test Size 48 in� x 48 in� Test Duration of 15 min�

ml/m2

oz/ft2

0.30

Test Size 48 in. x 48 in.

0.25

Test Period 15 minutes

Standard Air - .075 lb/ft

Wind-driven Rain

Penetration ClassesClass Discharge Loss Coefcient

D Below 0.80

Model EVH-801 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.

0.20

0.15

0.10

0.05

Water Penetration per Unit Free Area

0.00

1100 1150 1200 1250 1300

ft/min:

m/s:

6.5 7.0 7.5

Free Area Velocity

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 0.01 oz. of water

(penetration) per sq. ft. of louver free area. *The beginning point of water penetration for Model EVH-801 is above 1250 fpm free area velocity. These performance 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.

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