Honeywell ms7103a2021/u Modulating Actuator 2-10 Vdc

Product Description

The HONEYWELL ms7103a2021/u is a modulating spring-return actuator designed for proportional control of HVAC dampers and valves using a 2-10 VDC control signal. It accepts a variable input voltage within that range to position the actuator proportionally, allowing precise airflow or fluid flow regulation in commercial and light-industrial air handling systems. A feedback signal output is included, enabling the building automation system or controller to confirm actual actuator position in real time. Installation and commissioning are typically handled by licensed HVAC controls technicians familiar with low-voltage modulating controls.

This actuator is suited for commercial HVAC applications where proportional damper or valve control is required. Typical installations include air handling units, VAV systems, mixing boxes, and other applications where a building automation system sends a modulating 2-10 VDC signal to govern position. The spring-return function drives the actuator to its fail-safe position on loss of power, which is a standard requirement in many commercial ventilation and smoke-control designs.

Key Features

• 2-10 VDC modulating control signal for proportional positioning
• Spring-return mechanism provides fail-safe positioning on power loss
• Feedback signal output confirms actuator position to the BAS or controller
• Designed for damper and valve actuation in commercial HVAC systems
• Low-voltage control circuit for compatibility with standard BAS outputs

Compatibility

Designed as an OEM-style modulating spring-return actuator for commercial HVAC damper and valve applications requiring a 2-10 VDC proportional control input with position feedback.

Installation Notes

Installation should be performed by a licensed HVAC controls technician. Disconnect and lock out all power to the control system before wiring or mounting the actuator. Verify that the control signal source is rated for 2-10 VDC output before connecting. Follow all applicable local codes and manufacturer wiring diagrams when terminating low-voltage control and feedback signal conductors.

Technical Specifications

• Control Signal: 2-10 VDC modulating
• Actuation Type: Spring return
• Feedback Output: Yes

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: ms7103a2021/u