Description
The Honeywell MS7103A2221 is a spring return modulating actuator engineered for precise valve control in commercial and industrial HVAC systems. Accepting a 2–10 VDC control signal, this actuator delivers smooth, proportional positioning that integrates seamlessly with building automation systems and direct digital control (DDC) applications. The integrated feedback signal allows controllers to verify and monitor actuator position in real time, enabling closed-loop control for enhanced system accuracy and energy efficiency.
Key Features
- 2–10 VDC modulating control signal for proportional valve positioning
- Spring return (SR) fail-safe operation — returns to a defined position on power loss
- Position feedback signal for closed-loop DDC and BAS integration
- Designed for use with compatible Honeywell and industry-standard control valves
- Compact, robust housing suitable for commercial HVAC environments
- Reliable Honeywell engineering for long service life and consistent performance
Applications
- Commercial HVAC hydronic heating and cooling systems
- Building automation and direct digital control (DDC) systems
- Air handling units (AHUs) and fan coil units
- Chilled water and hot water valve control
- Variable air volume (VAV) and modulating control applications
Why Choose the Honeywell MS7103A2221?
The MS7103A2221 combines Honeywell’s proven actuator technology with spring return fail-safe functionality and a position feedback output, making it an ideal choice for mission-critical HVAC control applications. Whether retrofitting an existing system or specifying new construction, this actuator provides the reliability, compatibility, and precision that HVAC professionals demand.









