⚙️ Technical Specifications
| Feature | Specification |
| Model | 025-17175-002 |
| Manufacturer | YORK (Johnson Controls) |
| Device Type | Motor Actuator |
| Application | HVAC Damper/Valve Control |
| Control Signal | Electronic Proportional |
| Voltage | 24V AC/DC |
| Function | Modulating |
| Mounting | Direct Coupled |
The YORK 025-17175-002 is a precision-engineered motor actuator designed for high-performance HVAC control systems. It provides reliable, proportional positioning for air dampers or control valves, ensuring optimal airflow and temperature regulation within large-scale industrial and commercial refrigeration or climate control units.
📰 Product News & Industry Context
As building automation systems continue to integrate smarter HVAC controls, the longevity of mechanical components like the 025-17175-002 becomes vital. Maintenance teams are increasingly focusing on preventive replacements of these actuators to avoid drift in air-handling performance, which directly impacts energy consumption and compliance with modern building efficiency standards.
📖 Operating Instructions
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Mounting: Ensure the damper or valve shaft is clean and free of debris. Slide the actuator onto the shaft and tighten the anti-rotation strap to prevent housing movement.
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Wiring: Connect the 24V power supply and the control signal wire according to the wiring diagram located on the actuator housing. Ensure all connections are secure to prevent intermittent signal loss.
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Calibration: Once powered, the unit may perform a self-calibration stroke. Ensure the damper/valve path is clear of obstructions during this initial startup phase.
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Testing: Use the system controller to send 0% and 100% signals to verify that the actuator achieves the required mechanical end-stops.
🛠 Product Operation Overview
The actuator converts an electronic control signal (typically 0-10V or 4-20mA) into precise mechanical rotational torque. An internal gear train translates the motor output to the desired shaft position, while an internal feedback potentiometer or digital encoder continuously reports the current position to the main controller, allowing for highly accurate flow modulation.
❓ Frequently Asked Questions (Q&A)
Q: What should I do if the actuator is not responding to control signals?
A: First, verify the 24V supply voltage at the actuator terminals. If power is present, check the control signal polarity and ensure the system controller is outputting the expected voltage/current range.
Q: Can this actuator be used in manual mode?
A: Many YORK actuators include a manual override clutch button. Press and hold the release button to manually rotate the shaft for system testing or emergency positioning.
Q: Is the 025-17175-002 compatible with all YORK chillers?
A: This model is designed for specific HVAC applications. Please cross-reference your chiller’s “Renewal Parts” list or the specific equipment model number to ensure compatibility before installation.
