Greenheck EHH-201 Installation Manual

Wind-Driven Rain Louver

Horizontal Blade

Application and Design

EHH-201 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 horizontal rain resistant blades to provide maximum resistance to wind driven rain in even the most extreme weather conditions. The EHH-201 is an AMCA CERTIFIED LOUVER enabling designers to select and apply with confidence.

Standard Construction

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

2 in. x 0.063 in. nominal wall thickness

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

extruded 6063-T5 aluminum, 0.063 in. nominal wall thickness, positioned on approximately 1 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

Sill Pan � � � � � � � �0.063 formed aluminum

Minimum Size � � �6 in. W x 6 in. H

Maximum Single Section Size � � � �96 in. W x 84 in. H

EHH-201

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

• Filter rack

• Flanged frame (head and jamb only)

• 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.

Free Air Velocity

ml/m2

oz/ft2

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

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

0 0 0 0 A 99.9 0 0 0 0 A 99.7

306 1.6 131 0.7 A 99.8 250 1.3 107 0.5 B 98.5

442 2.2 189 1.0 A 99.5 512 2.6 219 1.1 B 96.5

702 3.6 300 1.5 B 98.5 697 3.5 298 1.5 C 94.5

908 4.6 388 2.0 B 96.3 901 4.6 385 2.0 C 91.6

1088 5.5 465 2.4 C 92.5 1123 5.7 480 2.4 C 88.5

1361 6.9 582 3.0 C 82.1 1357 6.9 580 2.9 C 86.1

1586 8.1 678 3.4 D 73.8 1598 8.1 683 3.5 C 80.5

Discharge Loss Coefﬁcient Class (Intake) = 3

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.

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

22 m/s (50 mph) Wind Velocity

Free Area

Velocity

Ventilation Air

Core Velocity

Water

Penetration

EHH-201PERFORMANCE DATA

Wind-Driven Rain Louver

Extruded Aluminum

Discharge Loss Coefcient Classications

Class Discharge Loss Coefcient

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

Greenheck Fan Corporation certifies

that the EHH-201 louvers shown herein are licensed to bear the

AMCA Seal. The ratings shown are

PENETRATION

PERFORMANCE

DRIVEN RAIN

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL, INC.

performed in accordance with

AIR

AMCA Publication 511 and comply

WIND

with the requirements of the AMCA Certified Ratings Program. The AMCA Certified Ratings Seal applies to air

performance, water penetration, and

based on tests and procedures

WATER

wind-driven rain ratings.

Wind-driven Rain

Penetration Classes

D Below 0.80

Airflow Resistance (Standard Air - �075 lb/ft

in. wg

0.9

200

0.8

0.7

0.6

0.5

100

0.4

90 80

0.3

0.2

0.1

0.09

0.08

0.07

Static Pressure Drop

0.06

0.05

0.04

9 8

0.03

0.02

ft/min:

m/s:

Model EHH-201 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.

Test Size 48 in. x 48 in.

St andard Ai r - .075 lb/ft

200 300 400 500 600 700800 9001000 2000 3000

Exhaust

Intake

2345678910

)

Water Penetration

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

0.30

Test Size 48 in. x 48 in.

0.25

0.20

0.15

0.10

0.05

Water Penetration per Unit Free Area

0.00

ft/min:

m/s:

Test Period 15 minutes

Standard Air - .075 lb/ft

850 900 950 1000 1050 1100

4.0 5.0

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 .01 oz. of water (penetration) per sq. ft. of louver free area. *The beginning point of water

penetration for Model EHH-201 is 914 fpm free area velocity�

These perfor mance 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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