Greenheck EHH-501 Installation Manual

Wind-Driven Rain Louver

Horizontal Blade

Application and Design

EHH-501 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-501 is an AMCA CERTIFIED LOUVER enabling designers to select and apply with confidence.

Standard Construction

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

5 in. x 0.081 in. nominal wall thickness

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

extruded 6063-T5 aluminum, 0.081 in. nominal wall thickness, positioned on approximately 2 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

Sil Pan � � � � � � � � �0.063 formed aluminum

Minimum Size � � �12 in. W x 7 in. H

Maximum Single Section Size � � � �120 in. W or 120 in. H (limited to 70 ft. sq.)

EHH-501

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.

Static Pressure Drop

ORMANCE

PENETRATION

DRIVEN RAIN

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 0 0 0 0 B 98.5

198 1.0 98 0.5 278 1.4 138 0.7 B 98.1

397 2.0 197 1.0 419 2.1 208 1.1 B 97.8

595 3.0 295 1.5 587 3.0 291 1.5 B 97.4

794 4.0 394 2.0 837 4.3 415 2.1 B 97.8

992 5.0 492 2.5 978 5.0 485 2.5 B 98.2

1192 6.1 591 3.0 1185 6.0 588 3.0 B 98.4

1355 6.9 672 3.4 A 99.9 1343 6.8 666 3.4 B 98.0

1585 8.1 786 4.0 A 99.5 1569 8.0 778 4.0 B 97.5

1766 9.0 876 4.5 A 99.3 1766 9.0 876 4.5 B 96.4

2016 10.2 1000 5.1 B 98.7 1986 10.1 985 5.0 C 93.8

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

in. wg

0.9

200

100

90 80

0.09

0.08

0.07

0.06

0.05

0.04

9 8

0.03

0.02

ft/min:

m/s:

Model EHH-501 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.

0.8

Standard Air - .075 lb/ft

0.7

0.6

0.5

0.4

0.3

0.2

0.1

200 300 400 500 600 700 800 900 1000 2000 3000

Exhaust

Intake

2345678910

Free Air Velocity

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

22 m/s (50 mph) Wind Velocity

Free Area

Velocity

Ventilation Air

Core Velocity

)

Water

Penetration

Water Penetration

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

0.30

0.25

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:

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 EHH-501 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.

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

Greenheck Fan Corporation

certifies that the EHH-501 louvers shown herein are licensed

WATER

to bear the AMCA Seal. The

AIR

PERF

ratings shown are based on

WIND

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL, INC.

tests and procedures performed

in accordance with AMCA Publication 511 and comply with

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

penetration, and wind-driven rain ratings.

Test Size 48 in. x 48 in.

Test Period 15 minutes

Standard Air - .075 lb/ft

6.5 7.0 7.5

Free Area Velocity

EHH-501PERFORMANCE DATA

Wind-Driven Rain Louver

Extruded Aluminum

Wind-driven Rain

Penetration ClassesClass Discharge Loss Coefcient

D Below 0.80

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