Greenheck Fan Ventilation Hood ES 30 User Manual

Extruded BACKDRAFT DAMPER  
DAMPERS AND LOUVERS  
ES-30 SERIES  
Vertical Mount - Horizontal Airflow  
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)  
H*  
Standard Construction  
Frame: 6063T5 extruded aluminum.  
W*  
(0.063 in. [1.6mm] thickness)  
Blades: 6063T5 extruded aluminum.  
(0.050 in. [1.3mm] thickness)  
*W & H dimensions furnished approximately 1/4 in. (6mm) under size.  
Axle Bearings: Synthetic polycarbonate sleeve type.  
Linkage: 1/8 in. (3mm) aluminum.  
NOTE: Optional counterbalance weights shown.  
Blade Seals: Vinyl.  
3"  
2" Max.  
3"  
2" Max.  
3"  
2"
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  
11/2 in. (38mm) Flange On Discharge: ES-31  
11/2 in. (38mm) Flange On Intake:  
• Counterbalance Weights  
• Pull Chain Actuator  
ES-32  
1 1/2"  
1 1/2"  
2"  
2"  
2"  
ES-30  
ES-31  
ES-32  
Flange On Intake  
No Flange  
Flange On Discharge  
• Wing Nut Actuator  
ES-30  
No Flange  
ES-31  
Flange on Discharge  
ES-32  
Flange on Intake  
 

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