Ewc Controls END-8X14-MA15S Nd Series Motorized Damper

Product Description

The EWC CONTROLS END-8X14-MA15S is an 8-inch by 14-inch motorized zone damper from the ND Series Ultra-Zone line, designed for residential and light commercial HVAC zoning systems. The damper operates on a 3-wire power-open and power-closed configuration, driven by a motor rated at 17 inch-pounds of torque. A manual gear release and onboard fail-safe LEDs support fast field diagnostics during installation and service calls. Nylon bushings reduce operating noise, and overlapping blades with a strong positive-off motor deliver a 97 percent leak-proof seal for accurate zone airflow control.

This damper is sized for 8-inch by 14-inch rectangular ductwork and integrates directly into EWC Ultra-Zone zoning systems. The LED display lets the installing technician visually verify damper blade position without additional test equipment. A quick-connecting terminal block eliminates the need for wire connectors and speeds up field wiring. The sturdier frame design reduces installation time in tight duct chases. This damper is a fit for forced-air zoning retrofits and new construction zone control applications handled by HVAC technicians.

Key Features

• 3-wire power-open and power-closed motor operation with manual gear release
• Motor driven at 17 inch-pounds of torque for reliable blade actuation
• 97 percent leak-proof rating via overlapping blade design and positive-off motor
• Onboard fail-safe LEDs for quick diagnostic checks during checkout
• Nylon bushings for quieter operation and extended motor service life
• Quick-connecting terminal block eliminates wire connectors and speeds wiring
• UL listed and NEMA Class 2 certified motor

Compatibility

Designed for use with EWC Ultra-Zone zoning systems and sized for 8-inch by 14-inch rectangular duct installations.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with forced-air zoning controls. De-energize the air handler and zoning control panel before connecting or disconnecting any wiring at the terminal block. Follow the equipment manufacturer wiring diagram and applicable local mechanical codes when integrating this damper into a zoning system. Verify blade open and closed positions using the onboard LED indicators before returning the system to service.

Technical Specifications

• Duct Size: 8 x 14 inches
• Motor Torque: 17 inch-pounds
• Operation Type: 3-wire power-open and power-closed
• Leak Rating: 97 percent
• Motor Certification: UL Listed, NEMA Class 2
• Length: 17 inches
• Width: 14 inches
• Height: 7 inches
• Weight: 5.3 pounds

Standard Information

• Brand: EWC CONTROLS
• Manufacturer Part Number: END-8X14-MA15S