EWC Controls EBD 14" Damper

The EWC Controls EBD 14" Electronic Bypass Damper is a precision-engineered static pressure control solution for multi-zone HVAC systems. This 14-inch round damper features a heavy-duty 24-gauge galvanized steel shell with a crimped male end and a straight female end, ensuring a secure fit in standard ductwork. As a professional-grade bypass damper for zoning, the EBD is an all-in-one unit that integrates the damper motor with a factory-mounted static pressure switch, eliminating the need for complex external linkages. For optimal HVAC system efficiency, this model includes low-leakage blade seals to minimize air bypass when the system is at design load. The integrated pressure sensor allows for easy field adjustments between 0.5" and 4" W.C. using a simple set-screw on the Dwyer ADPS switch. This configuration is essential for HVAC duct pressure management, as it automatically modulates the blade position to maintain constant airflow as zone dampers open and close. The unit operates on 24VAC power and comes complete with 16 feet of tubing and dual pitot tubes for immediate installation.

• Simplified Installation: The self-contained design integrates the EWC bypass motor and pressure switch into a single assembly, reducing labor time and wiring complexity.
• Versatile Static Control: Adjust the pressure set-point from 0.5" to 4" W.C. to match specific system requirements, ensuring automatic static pressure regulation.
• Durable Construction: Built with 24-gauge galvanized steel and high-torque motors to handle the rigors of commercial and residential Zoned HVAC systems.
• Complete Kit: Includes the essential pitot tube and tubing, removing the need for separate accessory sourcing.

How do I adjust the static pressure set-point on the EBD-14?
With the air handler running at full CFM, use the integrated set-screw on the pressure switch. Turn the dial until the damper remains closed when all zones are calling and begins to modulate as zones close.

What is the proper orientation for mounting the PS4 pressure switch?
The switch must be mounted level and plumb, with the pressure ports pointing straight down. If installing the damper vertically, the switch must be rotated 90 degrees on its mounting plate to maintain this orientation.

Can I use this with any 24V zoning manufacturer?
Yes, the EBD operates as a stand-alone component requiring 24VAC, making it compatible with most major zoning brands and control boards that support electronic bypass logic.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.