Ewc Controls END-22X8-MA15S Nd Motorized Damper 24V

Product Description

The EWC CONTROLS END-22X8-MA15S is a non-damaging (ND) motorized zone damper designed for rectangular duct applications in HVAC zoning systems. Measuring 8 inches by 22 inches, this damper operates on 24 volts and features a 15-second motor actuation time, making it suitable for zone control systems that require reliable, repeatable airflow regulation. The motor is mounted on the bottom of the unit and wired with a standard 3-wire configuration. An integrated LED indicator light provides a quick visual status check during commissioning or service calls. Licensed HVAC technicians install this component as part of residential or light commercial zoning setups.

This motorized damper is intended for air quality and comfort zoning applications within forced-air duct systems. The rectangular form factor fits standard 8-inch by 22-inch duct openings and integrates with zone control boards and thermostats that operate on 24-volt low-voltage control circuits. It is well-suited for new construction zoning installations as well as retrofit zoning projects where precise airflow control is required across multiple zones.

Key Features

• ND motorized damper rated for 24-volt control circuits
• 15-second motor actuation time for responsive zone control
• Rectangular damper sized at 8 inches by 22 inches
• 3-wire motor connection compatible with standard zone control boards
• Bottom motor mount for accessible installation in tight duct runs
• Integrated LED indicator light for status confirmation during service

Compatibility

Designed as an OEM-style motorized zone damper for use in 24-volt residential and light commercial HVAC zoning systems with rectangular duct configurations.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage zoning controls and duct fabrication practices. Power down the air handler and de-energize the zone control board before wiring or mounting the damper. Verify duct opening dimensions match the damper face size before securing to avoid air bypass. Follow the zone controller manufacturer wiring diagram for the 3-wire connection to ensure correct open, closed, and common terminal assignments.

Technical Specifications

• Product Type: ND Motorized Damper
• Size: 8 inches x 22 inches
• Shape: Rectangle
• Voltage: 24 volts
• Motor Actuation Time: 15 seconds
• Wires to Motor: 3
• Motor Mount: Bottom
• Application: Air Quality
• Features: LED Indicator Light

Standard Information

• Brand: EWC CONTROLS
• Manufacturer Part Number: END-22X8-MA15S