EWC Controls URD-7 Damper
The EWC Controls URD-7 Damper is a professional-grade 7-inch round motorized damper built for rigorous multi-zone HVAC applications. Constructed from heavy 24-gauge galvanized steel, this unit features a single-blade design with an integrated Poron sealing gasket to ensure a tight seal and minimal leakage at static pressures up to 1.5 in. w.c. The MA-ND5 actuator provides reliable 18 in/lb torque using a three-wire power open/power closed configuration, eliminating the failure points often found in spring-return models. Nylon bearings and a 5/8-inch ThermoTuff drive shaft offer a thermal barrier to protect the motor while ensuring quiet operation. Integrated visual LED indicators (Green for Open, Red for Closed) provide immediate feedback on blade position, while adjustable end-stops allow for precise field balancing of minimum and maximum CFM requirements. This 24Vac floating actuator is compatible with most standard zoning panels and includes a NEMA 1 rated housing for secure terminal block access.
Key Benefits- Dual-Layered Blade Design: Features a Poron gasket for high-efficiency sealing and reliable airflow control.
- Superior Durability: Built with 24-gauge galvanized steel and rolled stiffening beads for maximum structural rigidity.
- Three-Wire Control: The power open and power closed mechanism ensures the damper stays in its commanded position without the hum of a continuous-duty spring-return motor.
- Field Serviceability: LED position indicators and adjustable end-stops simplify diagnostic checks and system balancing.
- Thermal Protection: The ThermoTuff drive shaft prevents heat transfer from the ductwork to the MA-ND5 actuator, extending component life.
Is the EWC URD-7 compatible with my existing zone panel?
The URD-7 utilizes a standard 24Vac 3-wire interface (Common, Power Open, Power Closed), making it compatible with EWC Ultra-Zone panels and most third-party 24V zoning systems that support power open/power closed dampers.
Can I adjust the airflow when the damper is "closed"?
Yes. The integrated MA-ND5 motor includes adjustable end-stops that allow technicians to set a minimum position, ensuring a specific CFM bleed into the zone even when the damper is technically closed.
What is the purpose of the LED lights on the actuator?
These failsafe LEDs (Red/Green) only illuminate when the blade has reached its limit of travel. This allows for rapid visual confirmation that the 7-inch motorized damper is fully seated or fully open without dismantling ductwork.
This item is not eligible for free shipping.
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.
Original: $132.68
-65%$132.68
$46.44EWC Controls URD-7 Damper
The EWC Controls URD-7 Damper is a professional-grade 7-inch round motorized damper built for rigorous multi-zone HVAC applications. Constructed from heavy 24-gauge galvanized steel, this unit features a single-blade design with an integrated Poron sealing gasket to ensure a tight seal and minimal leakage at static pressures up to 1.5 in. w.c. The MA-ND5 actuator provides reliable 18 in/lb torque using a three-wire power open/power closed configuration, eliminating the failure points often found in spring-return models. Nylon bearings and a 5/8-inch ThermoTuff drive shaft offer a thermal barrier to protect the motor while ensuring quiet operation. Integrated visual LED indicators (Green for Open, Red for Closed) provide immediate feedback on blade position, while adjustable end-stops allow for precise field balancing of minimum and maximum CFM requirements. This 24Vac floating actuator is compatible with most standard zoning panels and includes a NEMA 1 rated housing for secure terminal block access.
Key Benefits- Dual-Layered Blade Design: Features a Poron gasket for high-efficiency sealing and reliable airflow control.
- Superior Durability: Built with 24-gauge galvanized steel and rolled stiffening beads for maximum structural rigidity.
- Three-Wire Control: The power open and power closed mechanism ensures the damper stays in its commanded position without the hum of a continuous-duty spring-return motor.
- Field Serviceability: LED position indicators and adjustable end-stops simplify diagnostic checks and system balancing.
- Thermal Protection: The ThermoTuff drive shaft prevents heat transfer from the ductwork to the MA-ND5 actuator, extending component life.
Is the EWC URD-7 compatible with my existing zone panel?
The URD-7 utilizes a standard 24Vac 3-wire interface (Common, Power Open, Power Closed), making it compatible with EWC Ultra-Zone panels and most third-party 24V zoning systems that support power open/power closed dampers.
Can I adjust the airflow when the damper is "closed"?
Yes. The integrated MA-ND5 motor includes adjustable end-stops that allow technicians to set a minimum position, ensuring a specific CFM bleed into the zone even when the damper is technically closed.
What is the purpose of the LED lights on the actuator?
These failsafe LEDs (Red/Green) only illuminate when the blade has reached its limit of travel. This allows for rapid visual confirmation that the 7-inch motorized damper is fully seated or fully open without dismantling ductwork.
This item is not eligible for free shipping.
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.
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Description
The EWC Controls URD-7 Damper is a professional-grade 7-inch round motorized damper built for rigorous multi-zone HVAC applications. Constructed from heavy 24-gauge galvanized steel, this unit features a single-blade design with an integrated Poron sealing gasket to ensure a tight seal and minimal leakage at static pressures up to 1.5 in. w.c. The MA-ND5 actuator provides reliable 18 in/lb torque using a three-wire power open/power closed configuration, eliminating the failure points often found in spring-return models. Nylon bearings and a 5/8-inch ThermoTuff drive shaft offer a thermal barrier to protect the motor while ensuring quiet operation. Integrated visual LED indicators (Green for Open, Red for Closed) provide immediate feedback on blade position, while adjustable end-stops allow for precise field balancing of minimum and maximum CFM requirements. This 24Vac floating actuator is compatible with most standard zoning panels and includes a NEMA 1 rated housing for secure terminal block access.
Key Benefits- Dual-Layered Blade Design: Features a Poron gasket for high-efficiency sealing and reliable airflow control.
- Superior Durability: Built with 24-gauge galvanized steel and rolled stiffening beads for maximum structural rigidity.
- Three-Wire Control: The power open and power closed mechanism ensures the damper stays in its commanded position without the hum of a continuous-duty spring-return motor.
- Field Serviceability: LED position indicators and adjustable end-stops simplify diagnostic checks and system balancing.
- Thermal Protection: The ThermoTuff drive shaft prevents heat transfer from the ductwork to the MA-ND5 actuator, extending component life.
Is the EWC URD-7 compatible with my existing zone panel?
The URD-7 utilizes a standard 24Vac 3-wire interface (Common, Power Open, Power Closed), making it compatible with EWC Ultra-Zone panels and most third-party 24V zoning systems that support power open/power closed dampers.
Can I adjust the airflow when the damper is "closed"?
Yes. The integrated MA-ND5 motor includes adjustable end-stops that allow technicians to set a minimum position, ensuring a specific CFM bleed into the zone even when the damper is technically closed.
What is the purpose of the LED lights on the actuator?
These failsafe LEDs (Red/Green) only illuminate when the blade has reached its limit of travel. This allows for rapid visual confirmation that the 7-inch motorized damper is fully seated or fully open without dismantling ductwork.
This item is not eligible for free shipping.
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.
