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The EWC CONTROLS END-8X10 is a rectangular motorized damper designed for zone control and air quality management in ducted HVAC systems. Sized at 8 inches by 10 inches, this ND-series damper operates on 24 volts and features a bottom-mounted motor with a 3-wire connection to the actuator. An onboard LED indicator allows technicians to verify damper status quickly during commissioning or service. Licensed HVAC technicians install this damper as part of zoning systems to regulate airflow through branch ducts, improving system efficiency and occupant comfort.
This damper is suited for residential and light commercial zoning applications where independent zone control or air quality management is required. Its rectangular form factor fits standard rectangular duct openings measuring 8 inches by 10 inches. The 24-volt control signal is compatible with typical low-voltage zoning controllers and zone control panels commonly used in forced-air systems.
Designed as an OEM-style replacement or new-installation motorized damper for rectangular duct openings in residential and light commercial forced-air zoning systems accepting 24-volt control signals.
Installation should be performed by a licensed HVAC technician familiar with low-voltage zoning controls. Disconnect and lock out power to the air handler and zone control panel before installing or wiring the damper. Ensure the duct opening matches the 8-by-10-inch damper frame dimensions and that the motor mount orientation aligns with the available clearance in the duct run. Follow the zone controller manufacturer wiring diagram and applicable mechanical codes when making low-voltage connections.
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