Io Hvac Controls EB-1612 Motorized Bypass Damper 16x12

Product Description

The IO HVAC CONTROLS EB-1612 is a heavy-duty motorized bypass damper designed for use in forced-air HVAC zoning systems. It automatically diverts excess conditioned air back to the return side of the air handler when zone dampers close, protecting the blower from excessive static pressure buildup. Sized at 16 inches by 12 inches, this unit suits residential and light commercial ducted systems where pressure relief is required. Licensed HVAC technicians install this component as part of a complete zoning control setup.

This bypass damper is used in residential and light commercial forced-air systems equipped with zone control panels and multiple zone dampers. When zone dampers close and static pressure rises in the supply plenum, the EB-1612 opens to route air back to the return plenum, keeping the system operating within safe pressure limits. It is a common component in multi-zone split system installations where pressure relief is critical to equipment longevity.

Key Features

• Heavy-duty motorized construction for reliable automated operation in zoning systems
• 16-inch by 12-inch duct opening fits standard commercial and residential trunk sizes
• Motorized actuator provides automatic pressure relief without manual adjustment
• Robust build quality suited for continuous cycling in active zoning applications
• Compact packaged footprint: 14 inches wide, 23 inches tall, 8 inches deep

Compatibility

Designed as an OEM-style motorized bypass damper for forced-air ducted HVAC zoning systems requiring a 16-inch by 12-inch bypass opening.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with zoning system design and low-voltage control wiring. Shut down the air handler and de-energize the control panel before making any duct cuts or electrical connections. The damper should be mounted in the bypass duct run between the supply and return plenums per the zoning panel manufacturer's layout guidelines. Verify actuator wiring matches the zone controller's output terminals before restoring power.