Daikin-McQuay 910326420 Non-Spring Return Modulating Damper Actuator 24V 0-10VDC 44 lb-in

The Daikin-McQuay 910326420 is an OEM rotary electronic damper actuator — equivalent to the Siemens GDE161.1P OpenAir GDE Series — engineered for precise airflow control in commercial HVAC applications. Operating on 24 VAC/DC power with a 0–10 VDC modulating control signal, this non-spring return (NSR) actuator delivers 44 lb-in (5 Nm) of torque for reliable damper positioning in a wide range of building automation systems.

Key Features:

• Non-Spring Return (NSR) — Maintains last damper position on power loss, no spring reset required
• Modulating 0–10 VDC Control — Enables precise, proportional airflow regulation
• 44 lb-in (5 Nm) Torque — Suitable for small to medium-sized HVAC dampers
• 24 VAC/DC Operation — Compatible with standard building control systems
• Direct-Coupled Installation — Mounts directly to damper shaft for simplified setup
• Built-In Position Feedback — Modulating models include integrated feedback signal
• Plenum-Rated Cable — 3 ft plenum-rated lead wire for safe air-handling installation
• NEMA 2 (IP54) Enclosure — Provides protection against dust and moisture
• 90-Second Run Time — Full-stroke travel at 60 Hz
• Manual Override — Allows hand-positioning during commissioning or power outages
• UL, cUL, and CE Listed — Meets major safety and regulatory standards
• Low Power Consumption — 2 to 3 VA for energy-efficient operation

This actuator is well-suited for use in Variable Air Volume (VAV) systems, air handling units (AHUs), fan coil units, and economizer controls. The compact design and self-adapting capability make it ideal for installations where space is limited. Cross-reference: Siemens GDE161.1P.