Ewc Controls END-12X16-MA15S Motorized Zone Damper 12x16

Product Description

The EWC CONTROLS END-12X16-MA15S is a 12 x 16 inch rectangular motorized zone damper built for residential and light commercial HVAC zoning systems. Operating on 24 VAC at 1.5 amps, this ND-series damper uses a power open/power closed, 3-wire configuration with fail-safe LED indicators that let technicians confirm damper position at a glance. The aluminum frame with nylon bushings reduces operating noise, and the motor delivers enough torque for consistent blade control with a 97% leak-proof rating. A quick-connecting terminal block eliminates wire nuts and speeds up commissioning. The motor includes a manual gear release and is UL Listed for field confidence.

This damper is designed for duct-mounted zone control in forced-air HVAC systems, particularly those using multi-zone controllers. It suits residential new construction and retrofit zoning work where accurate airflow control across multiple zones is required. The motor is always mounted on the second dimension specified, which simplifies ordering and installation planning. Heat pump systems are supported, and the damper is compatible with network zoning configurations. Rated for ambient temperatures from 0 degrees F to 140 degrees F, it handles the range of conditions found in unconditioned duct chases and mechanical rooms.

Key Features

• Power open/power closed 3-wire operation with fail-safe LED indicators for quick diagnostic checks
• 97% leak-proof rating achieved through overlapping blades and a strong positive-stop motor
• Nylon bushings reduce operating noise for quieter zone control
• UL Listed motor with manual gear release for service flexibility
• Quick-connecting terminal block eliminates wire nuts and speeds installation
• Heat pump compatible and supports network zoning systems
• Made in the USA from aluminum construction

Compatibility

Designed for use with the EWC Controls Ultra-Zone zoning system and other 24 VAC zone control boards that support power open/power closed damper wiring. Heat pump compatible and network zoning capable.

Installation Notes

Installation is performed by licensed HVAC technicians. Shut down the air handler and de-energize the control board before wiring the damper. Follow NEC low-voltage wiring practices for the 24 VAC control circuit. Note that the motor is always factory-mounted on the second dimension of the size designation, so confirm duct orientation before ordering or installing.

Technical Specifications

• Size: 12 x 16 inches
• Voltage: 24 VAC
• Amperage: 1.5 amps
• Frequency: 50/60 Hz
• Phase: Single
• Damper Type: Zone
• Shape: Rectangle
• Ambient Temperature Range: 0 degrees F to 140 degrees F
• Maximum Temperature: 185 degrees F
• Material: Aluminum
• Color: Silver
• Mounting Type: Face plate
• Heat Pump Compatible: Yes
• Network Zoning: Yes
• Approvals: UL Listed
• Country of Origin: USA
• Package Length: 21 inches
• Package Width: 14 inches
• Package Height: 7 inches
• Weight: 6.8 pounds

Standard Information

• Brand: EWC CONTROLS
• Manufacturer Part Number: END-12X16-MA15S