Greenheck Extruded Backdraft Damper ES-30 User manual

Application and Design

The ES-30 series is a vertical mounted backdraft damper that is

designed to allow horizontal airflow and prevent reverse airflow.

The damper is opened by air pressure differential and closed by

gravity.

Ratings (See page 2 for specific limitations)

Pressure: 2.5 in. wg (622 Pa) - differential pressure.

Velocity: 2000 fpm (10.2 m/s)

Temperature: 180°F (82ºC)

Standard Construction

Frame: 6063T5 extruded aluminum.

(0.063 in. [1.6mm] thickness)

Blades: 6063T5 extruded aluminum.

(0.050 in. [1.3mm] thickness)

Axle Bearings: Synthetic polycarbonate sleeve type.

Linkage: 1

/8in. (3mm) aluminum.

Blade Seals: Vinyl.

Size Limitations

Minimum Size (without weights):4 in.W x 4 in. H

(102mm x 102mm)

Minimum Size (with weights): 6 in. W x 8 in. H

(152mm x 203mm)

Maximum Size: 40 in. W x 52 in. H

(1016mm x 1321mm)

Options and Accessories

• 11

/2in. (38mm) Flange On Discharge: ES-31

 • 11

/2in. (38mm) Flange On Intake: ES-32

 • CounterbalanceWeights

 • PullChainActuator

 • WingNutActuator

DAMPERS AND LOUVERS

*W & H dimensions furnished approximately 1

/4in. (6mm) under size.

ES-30 SERIES

Vertical Mount - Horizontal Airflow

Extruded BACKDRAFT DAMPER

3" 2" Max.

ES-30

No Flange

3" 2" Max.

ES-32

Flange On Intake

3" 2" Max.

ES-31

Flange On Discharge

1 1

/2"1 1

/2"

3" 2" Max.

ES-30

No Flange

3" 2" Max.

ES-32

Flange On Intake

3" 2" Max.

ES-31

Flange On Discharge

1 1

/2"1 1

/2"

ES-30 ES-31 ES-32

NoFlange FlangeonDischarge FlangeonIntake

NOTE:Optionalcounterbalanceweightsshown.

Note:Counterbalanceweightsmayrequireeldadjustment.Instructionsareavailableatwww.greenheck.com.

Specifications

Backdraft dampers meeting the following specifications

shall be furnished and installed where shown on plans and/

or as described in schedules. Dampers shall consist of:

6063T5 extruded aluminum channel frame (0.063 in. [1.6mm]

thick) with 2 in. (51mm) depth; blades from 0.050 in. (1.3mm)

6063T5 extruded aluminum; synthetic polycarbonate axle

bearings;dampershallbeequippedwithextrudedvinylblade

seals; and internal 1

/8in. (3mm) aluminum linkage. Damper

1.0

Air Leakage in CFM/Sq. Ft.

1 2 3 4 5 6 7 8 910 20 30 40 50 60 70

80 90

100 150

Static Pressure Difference (in. wg)

LeakagetestingwasconductedinaccordancewithAMCA

Standard500-DandisexpressedasCFMpersq.ft.of

damperfacearea.Alldatahasbeencorrectedtorepresent

standard air at 0.075 lb/ft3 (1.201 kg/m3).

Leakage

36” x 36” Damper

ÆP in. wg Velocity

Operational Data (Pa) fpm (m/s)

Without Weights Blades Start to Open 0.05 (12) 35 (.18)

Blades Fully Open 0.27 (67) 1000 (5.1)

With Weights Blades Start to Open 0.015 (3.7) 15 (.08)

Blades Fully Open 0.13 (32) 600 (3.1)

Velocity (fpm)

x 10

Pressure Loss ( In. w.g.)

2 3 4 5 6 7 8 910

1.0

.10

.09

.08

.07

.06

.05

.04

.03

.02

x 100

2 3 4 5 6 7 8 910

x 1000

2 3 4 5 6 7 8 910

With Weights

Without Weights

Pressure Drop

36” x 36” Damper

manufacturer’s printed application and performance data

including pressure, velocity and temperature limitations

shall be submitted for approval showing damper suitable

for pressures to 2.5 in. wg (623 Pa), velocities to 2000 fpm

(10.2m/s) and temperatures to 180°F (82ºC). Testing and

ratingstobeinaccordancewithAMCAStandard500-D.

Basis of design is Greenheck model ES-30.

Performance data results from testing a 36” x 36” damper

inaccordancewithAMCAStandard500-DusingFigure

5.5(noducteitherside).Alldatahasbeencorrectedto

represent standard air at 0.075 lb/ft3 (1.201 kg/m3).

Leakage Pressure Drop

ES-30Rev.3Aug2008

Performance Data ES-30

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