Ewc Controls END-8X16-MA15S Motorized Zone Damper 8x16

Product Description

The EWC CONTROLS END-8X16-MA15S is a motorized zone damper engineered for forced-air HVAC zoning systems. Sized at 8 inches by 16 inches, it fits standard rectangular ductwork and delivers reliable airflow control across individual zones. The damper runs on a power-open/power-closed, 3-wire motor rated at 17 inch-pounds of torque with a manual gear release for service access. Nylon bushings reduce blade noise during operation, and overlapping blades with a strong positive-off motor provide a 97% leak-proof rating. Built-in fail-safe LEDs give technicians quick visual confirmation of damper position during commissioning and diagnostics. Licensed HVAC technicians are the typical installing trade for this component.

The END-8X16-MA15S is suited for residential and light-commercial forced-air zoning applications. It is part of the EWC CONTROLS Ultra-Zone ND series, designed to pair with Ultra-Zone zoning control systems. The damper mounts directly in rectangular supply or return ductwork and uses a quick-connect terminal block that eliminates wire nuts, reducing field wiring time. Its reinforced frame supports faster installation in tight duct chases and keeps the blade assembly square for consistent seal performance across the service life of the unit.

Key Features

• Power-open/power-closed 3-wire motor operation with manual gear release
• 17 inch-pounds of motor torque for positive blade actuation and accurate zone control
• 97% leak-proof rating via overlapping blades and positive-off motor
• Nylon bushings for quiet operation and extended motor service life
• Onboard LED display and fail-safe LEDs for fast field diagnostics
• Quick-connect terminal block eliminates wire nuts and speeds up wiring
• UL-listed motor with NEMA Class 2 certification

Compatibility

Designed for use with the EWC CONTROLS Ultra-Zone zoning system and compatible with standard 8-inch by 16-inch rectangular HVAC ductwork installations requiring motorized zone damper control.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with forced-air zoning systems. Disconnect and lock out power to the air handler and zone control board before mounting the damper or making wiring connections. The quick-connect terminal block must be fully seated before restoring power. Verify damper blade position and LED status indicators during system commissioning to confirm proper open and closed operation in each zone.

Technical Specifications

• Damper Size: 8 inches x 16 inches
• Motor Torque: 17 inch-pounds
• Motor Operation: Power open / power closed, 3-wire
• Leak Rating: 97% leak-proof
• Motor Certification: UL Listed, NEMA Class 2
• Package Length: 21 inches
• Package Width: 14 inchesPackage Height: 7 inches
• Weight: 5.8 pounds

Standard Information

• Brand: EWC CONTROLS
• Manufacturer Part Number: END-8X16-MA15S