York S1-025-38889-001 Control

The York S1-025-38889-001 Control is a specialized refrigerant pressure control switch designed for precise monitoring of system operating parameters. This HVAC safety cut-out is engineered with a fixed setpoint of 30 PSI Open and 60 PSI Close, making it an essential component for protecting compressors from low-pressure conditions or managing fan cycling in commercial and residential units. When performing refrigeration system maintenance, utilizing York OEM replacement parts like the S1-025-38889-001 pressure switch ensures the equipment maintains its original engineering specifications and operational logic. The switch features a rugged construction capable of withstanding the vibration and thermal cycling common in condenser cabinets. For technicians troubleshooting erratic system behavior, this control provides reliable electrical continuity and mechanical response to pressure fluctuations. Proper installation of these HVACR system safety controls prevents premature component failure and ensures the refrigerant circuit operates within safe thermodynamic limits during high-load periods.

Key Benefits

• Factory-Calibrated Precision: Fixed 30 PSI Open and 60 PSI Close settings remove the guesswork from field setup and prevent tampering.
• OEM Compatibility: Specifically designed for York, Coleman, and Luxaire equipment to ensure seamless mechanical and electrical integration.
• Enhanced System Protection: Acts as a critical line of defense against loss of charge and evaporator coil freeze-ups.
• Durable Termination: Features high-quality electrical leads and connections designed for the high-amperage environments of HVAC control circuits.

Common Questions

What is the primary application for the S1-025-38889-001?
This switch is primarily used as a low-pressure cut-out or a fan cycle control, depending on the specific wiring schematic of the York unit. It ensures the circuit opens when pressure drops below 30 PSI and resets when it reaches 60 PSI.

Can this control be used with R-410A systems?
Yes, this control is compatible with modern refrigerants, provided the system's operational requirements align with the 30/60 PSI fixed setpoints. Always check the service data plate on the equipment to verify the required cut-in and cut-out pressures.

Does this switch require manual resetting?
No, this is an automatic reset control. Once the pressure rises to the 60 PSI close setpoint, the switch will automatically reset and close the circuit.

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.