The IEC 71159943 24V Normally Closed 2-Position Actuator is a low-voltage valve actuator designed for IEC fan coil units and terminal hydronic HVAC systems. This actuator is ideal for zone-level temperature control, offering fast, reliable operation with 24V AC control signal compatibility. When energized, the actuator opens the valve; when de-energized, it returns to the normally closed position to stop water flow.
Technical Specifications
- Manufacturer: International Environmental Corporation (IEC)
- Part Number: 71159943
- Voltage: 24V AC
- Control Type: 2-Position (On/Off)
- Operation Mode: Normally Closed (N/C)
- Application: Hydronic water valve control in IEC fan coil systems
- Lead Length: Factory-supplied standard electrical leads
- Mounting: Direct mount to IEC zone valve assemblies
Key Features
- Low Voltage Control: Operates on 24V AC, making it compatible with most building automation and thermostat systems.
- Fail-Safe Design: Returns to closed position when power is lost, providing a safe and predictable default state.
- Precision Fit: Built for seamless integration with IEC valve bodies, ensuring reliable mechanical alignment and flow control.
- Compact Footprint: Ideal for tight fan coil compartments or ceiling-mounted applications.
- Quiet Operation: Minimal motor noise for use in sound-sensitive environments such as offices and residences.
Industry Applications
- Residential and commercial fan coil HVAC systems
- Zone control for hydronic heating and chilled water loops
- Energy-efficient HVAC retrofits
- Hospitality and multi-tenant buildings with central plants
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