York 375-49340-103 Actuator

The York 375-49340-103 Actuator PRV is a critical industrial component designed for high-precision capacity control in centrifugal liquid chillers. As the direct OEM replacement for 025-29657-002 and 025-29657-001, this heavy-duty 120V electric actuator manages the positioning of pre-rotation vanes (PRV) to modulate chiller load between 15% and 100%. Built on the rugged Barber Colman MP-9710 platform, it provides the high-torque rotary motion necessary to maintain constant leaving chilled liquid temperatures. This oil-filled unit features a manual steering worm shaft and a 9-position circular connector for secure electrical interfacing. For technicians servicing York MaxE YK chillers, this actuator ensures the precise mechanical linkage needed to optimize compressor performance and energy efficiency. By accurately responding to microprocessor signals, the York 375-49340-103 prevents overpressure conditions and system instability, making it an essential HVAC replacement part for maintaining large-scale industrial cooling plants.

Key Benefits

• Precise Capacity Modulation: Seamlessly adjusts pre-rotation vanes to match building load, ensuring the compressor operates at peak efficiency.
• Direct Hardware Compatibility: Engineered as a drop-in 025-29657-002 replacement, facilitating fast field installation without modifications to existing linkages.
• Heavy-Duty Industrial Build: Features a high-torque, oil-filled housing designed to withstand the vibration and temperature fluctuations of a mechanical room.
• Optimized System Protection: Regulates fluid flow and pressure to prevent surging and equipment failure in centrifugal liquid chillers.

Common Questions

Which chiller models use the York 375-49340-103?
This actuator is primarily used on York model YK MaxE centrifugal liquid chillers and similar industrial units that require electronic PRV modulation.

Does this part replace the 025-29657-002 and 025-29657-001 legacy actuators?
Yes, the 375-49340-103 is the current official HVAC OEM replacement designed to supersede both previous part numbers.

What are the electrical requirements for this actuator?
The unit operates on 120V (50/60 Hz) and typically draws approximately 0.95 Amps at a rated 50 Watts.

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.