International Environmental 71159902 Actuator

The International Environmental 71159902 Actuator is a field-proven 120V N/C 2Position Actuator designed for precise flow control in fan coil units and hydronic HVAC systems. As a veteran-grade HVAC replacement part, this normally closed thermal actuator ensures the valve remains in a closed state until 120V power is applied, providing an essential fail-safe for building climate control. This specific model, also identified as 711599-02, is the OEM actuator replacement for IEC (International Environmental Corporation) equipment, ensuring seamless HVAC actuator compatibility without the need for field modifications. Its class A insulation and 50/60Hz versatility make it a reliable choice for contractors managing large-scale commercial retrofits or simple maintenance cycles. By utilizing this electric valve actuator, technicians can maintain the factory-standard performance of the HVAC zone control system, ensuring efficient thermal regulation and consistent occupant comfort.

Key Benefits

• Direct OEM Match: Fully replaces part numbers 71159902 and 711599-02, eliminating the risk of actuator cross-reference errors.
• Standard 120V Operation: Designed for standard line voltage systems, simplifying actuator wiring during installation.
• Normally Closed Logic: Provides a natural fail-safe position for heating or cooling loops, preventing unintended flow during power loss.
• Two-Position Precision: Delivers reliable on/off control for zone valves, optimizing HVAC energy efficiency.

Common Questions

Is the 71159902 compatible with 711599-02?
Yes, those part numbers are identical internal designations for the same 120V N/C actuator used in International Environmental equipment.

Can I use this actuator on a 24V system?
No, this is a 120V AC actuator. Applying 24V will not provide sufficient power for the thermal element, and applying higher voltages will damage the unit.

Is this a spring-return actuator?
This is a thermal actuator that utilizes an internal wax element; it returns to its normally closed position via a built-in spring mechanism once the 120V signal is removed.

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.