14"x8" Shutter damper with actuator, 24V
Item #: 99303
EFD is a shut-off damper. The damper is provided with 24 V motors with spring-return actuators. The EFD conforms to leakage less than 1% of the local design airflow rate at the local maximum static pressure. The outdoor/exhaust air damper prevents the hot water coil from freezing and also prevents the cold air from cooling down the building if the unit stops.
The EFD multi-leaf damper comprises a number of opposed blades, swivelling on nylon bearings in an extruded aluminium framework. The blades are connected via a system of linkages (protected) on the outside of the frame.
Nominal data | ||
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Voltage (nominal) | 24 | V |
Frequency | 60 | Hz |
Input power | 2 | W |
Protection/Classification | ||
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Enclosure class | IP54 |
Controller and Sensors | ||
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Permitted ambient temperature | -22 to 122 | °F |
Dimensions and weights | ||
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Weight | 3.4 | lb |
Model | A | B |
EFD 14-8 |
14 (256) |
8 (203) |
EFD 20-8 |
20 (508) |
8 (203) |
EFD 24-8 |
24 (610) |
8 (203) |
Dimensions in inches (mm). |