Io Hvac Controls EB-2008 Motorized Bypass Damper 20x8

Product Description

The IO HVAC CONTROLS EB-2008 is a heavy-duty motorized bypass damper designed to regulate airflow in forced-air HVAC systems. The integrated actuator opens and closes the damper blade automatically, diverting excess conditioned air back to the return side of the system when zone dampers close. This prevents static pressure buildup that can damage equipment and degrade comfort. At 8 pounds and sized for a 20x8 inch duct opening, it is a robust solution suited to residential and light commercial zoning applications. Licensed HVAC technicians typically supply and install this component during zoning system commissioning or retrofit work.

The EB-2008 is used in forced-air zoning systems where multiple zone dampers control airflow to individual areas of a building. When one or more zones close, excess supply air pressure must be relieved to protect the air handler or furnace blower. This bypass damper mounts between the supply plenum and the return plenum or a return duct, automatically bypassing air to balance system pressure. It is appropriate for residential and light commercial installations where a 20x8 inch bypass opening matches the required bypass capacity.

Key Features

• Motorized actuator provides automatic bypass operation without manual intervention
• Heavy-duty construction rated for continuous cycling in active zoning systems
• Fits a 20x8 inch duct opening for proper airflow bypass capacity
• Compact package dimensions of 10 inches wide, 27 inches tall, and 8 inches deep
• 8-pound shipping weight indicates solid, durable damper body construction

Compatibility

Designed as an OEM-style motorized bypass damper for forced-air zoning systems requiring a 20x8 inch bypass opening in residential or light commercial applications.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut down and lock out the air handler or furnace before beginning duct work or wiring. The damper must be wired to the zone control board according to the zone controller manufacturer's low-voltage wiring diagram. Follow all applicable mechanical and electrical codes, including local adoptions of the International Mechanical Code and the National Electrical Code, when routing and connecting control wiring.