Johnson Controls M9104-AGP-2S Actuator

The Johnson Controls M9104-AGP-2S is a high-performance Electric Non-Spring Return Actuator specifically engineered for VAV (Variable Air Volume) box applications. operating on 24 VAC power, this actuator delivers a consistent 35 lb-in running torque, making it a reliable choice for driving dampers in commercial HVAC systems. This unit features an integrated 15 VDC unregulated differential pressure sensor and a 200-ohm nominal control input impedance, ensuring precise pressure-independent control. Designed for versatility, it supports 0 to 90-degree rotation with a field-selectable clockwise or counter-clockwise direction and a fixed 60-second timing for full travel. For technicians performing retrofits, the M9104-AGP-2S serves as the direct replacement for M9104-AGS-2N, utilizing a NEMA 1 enclosure and a simple synchronous drive for long-term positioning accuracy without the need for complex feedback potentiometers.

• Direct Replacement Compatibility: Seamlessly replaces the legacy M9104-AGS-2N actuator models in existing VAV systems.
• Integrated Pressure Sensing: Features a built-in differential pressure sensor for accurate air volume monitoring and control.
• Synchronous Motor Drive: Provides constant 60-second rotation time independent of load, ensuring predictable system response.
• Field-Selectable Rotation: Simplified installation with easy-to-configure rotation direction to match damper requirements.
• Durable Construction: Housed in a NEMA 1 enclosure suitable for standard plenum and indoor HVAC environments.

Is the M9104-AGP-2S compatible with older AGS series controllers?
Yes, this model is the official replacement for M9104-AGS-2N and is designed to integrate with existing Johnson Controls field controllers using the same footprint and wiring logic.

Does this actuator require periodic calibration?
The non-spring return motor and pressure-independent design minimize the need for manual zero-point calibration, though it is standard practice to verify the differential pressure sensor signal during seasonal commissioning.

What is the maximum torque capacity of this unit?
The unit provides 35 lb-in (4 N·m) of torque, which is optimized for standard VAV box dampers; always ensure the damper hardware moves freely to prevent motor binding.

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.