ZoneFirst MST Damper Actuator

The ZoneFirst MST Damper Actuator is a professional-grade 24V damper motor engineered for reliable operation in forced-air residential and light commercial HVAC zoning systems. This two-position actuator operates on 24Vac with a high-efficiency 6-watt power draw, ensuring minimal load on the HVAC zone control panel. Designed for a precise 30-second timing cycle for both opening and closing, the MST provides consistent airflow management and prevents static pressure spikes often caused by rapid-acting motors. Field technicians prefer this model for its integrated end switches, which provide critical signal feedback for equipment staging or auxiliary control. The unit features accessible screw terminals for secure field wiring, making it an ideal drop-in replacement for existing HVAC zone actuators. Whether you are performing a retro-fit or service call, the MST's robust gear train and compact damper actuator design ensure compatibility with most standard round or rectangular ZoneFirst dampers.

Key Benefits:

• Efficient Power Consumption: 24Vac operation with only 6W draw preserves transformer capacity.
• Reliable Timing: Smooth 30-second transition reduces duct noise and mechanical stress.
• System Logic Integration: Built-in end switches facilitate seamless communication with zone controllers.
• Simplified Installation: Heavy-duty screw terminals ensure stable electrical connections in high-vibration environments.
• Broad Compatibility: Standard two-position design serves as a versatile replacement zone damper motor.

Common Questions:

• Can this actuator replace other 24V zone motors? Yes, provided the voltage, 30-second timing, and mounting footprint align with your existing residential HVAC zoning hardware.
• Does the unit provide signal feedback? Yes, the MST actuator includes integrated end switches to signal damper position to the master panel.
• Is this suitable for high-static systems? It is designed for standard residential and light commercial systems; always verify that the torque rating meets your specific ductwork requirements.

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.