The EARD is a power open and spring closed fresh air damper. It has a 24 V motor used to control circulating air-in fresh air ventilation. The EARD is typically controlled by an IAQ thermostat or other whole-house ventilation control.

Honeywell Zone Damper, EARD Series, Single Blade, Push Terminal Electrical Connection, 10 s De-Energized, 30 s Energized Timing Range, 71 in-oz Torque, Steel, Galvanized, Multipoise Mounting, Power Open, Spring Closed Motor, Motor Specifications: 24 VAC at 60 Hz, 8 VA, Round Shape, 1 in-WC, 40 to 140 deg F, 10 in Length

• Adjustable damper position range stops
• One blade damper
• Shipped as power open/spring return closed damper
• Quiet operation
• Can be field converted to power closed or spring return open damper
• Blade closes off tightly against gasket for minimal leakage
• Male (crimped) and female (uncrimped) ends to connect to any rigid or flexible round duct
• Simple, easy-to-wire, two wire installation