Ewc Controls END-24X20 Nd Motorized Damper 24x20 in

Product Description

The EWC CONTROLS END-24X20 is a rectangular, motorized zone damper built for residential and light-commercial HVAC zoning systems. Operating at 24 volts, this damper controls airflow through rectangular ductwork measuring 24 inches by 20 inches. It is part of the ND Ultra-Zone series, engineered with a reinforced frame and nylon bushings that allow faster duct installation and reduce operating noise. A built-in LED display gives the installing technician immediate visual confirmation of damper position and operation status, reducing diagnostic time during checkout. The side-mounted motor connects via a 3-wire configuration. This unit is installed by HVAC technicians performing zoning work on forced-air systems.

The END-24X20 is designed for forced-air HVAC zoning applications where airflow to individual zones must be modulated or shut off independently. It fits rectangular duct openings of 24 inches by 20 inches and is suitable for residential and light-commercial air quality and comfort-zoning installations. The 24-volt control signal is compatible with standard zone control panels and thermostats used in multi-zone systems. Its reinforced frame supports secure duct mounting without the need for extensive shimming or bracketing.

Key Features

• LED display provides visual confirmation of damper operation during installation and checkout
• Nylon bushings reduce motor and blade noise for quieter long-term operation
• Reinforced frame speeds up duct insertion and improves structural fit
• 24-volt control voltage compatible with standard zone control panels
• Side-mounted motor with 3-wire connection simplifies field wiring
• Rectangular shape sized for 24 x 20 inch duct openings

Compatibility

Designed as an OEM-style replacement or new-installation motorized damper for 24-inch by 20-inch rectangular ductwork in 24-volt forced-air HVAC zoning systems.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with forced-air zoning systems. De-energize the zone control panel and disconnect low-voltage wiring before handling any damper or control components. Follow the duct manufacturer and zone control panel wiring diagrams when connecting the 3-wire motor leads. Verify damper blade position using the LED indicator before restoring power and returning the system to service.

Technical Specifications

• Product Type: ND Motorized Damper
• Size: 24 inches x 20 inches
• Shape: Rectangle
• Voltage: 24 volts
• Wires to Motor: 3
• Motor Mount: Side
• Application: Air Quality
• Features: LED Light

Standard Information

• Brand: EWC CONTROLS
• Manufacturer Part Number: END-24X20