York S1-025-35359-000 Pressure Control

The York S1-025-35359-000 Pressure Control is a critical high-pressure safety component designed for York HVAC systems and refrigeration equipment. This encapsulated pressure switch is factory-calibrated to open at 650 PSI and auto-reset/close at 450 PSI, providing essential high-side compressor protection. As an OEM York part, it ensures precise integration with discharge lines, preventing catastrophic compressor failure due to overpressure or condenser fan issues. The heavy-duty construction is built to withstand high-pressure refrigerant surges common in R-410A applications. Techs can rely on this switch for consistent pressure monitoring and maintaining system envelope limits in residential and light commercial condensers. Its compact design allows for installation in tight cabinet clearances, making it a direct-drop replacement for field service repairs where reliability is non-negotiable.

Technical Benefits:

• Precision Calibration: Fixed 650 PSI open / 450 PSI close settings eliminate the need for manual field adjustments and prevent setpoint drift.
• System Integrity: Acts as a primary safety refrigerant pressure switch to shut down the contactor coil before internal relief valves or head pressures exceed safety margins.
• OEM Compatibility: Specifically engineered as a genuine York replacement part for guaranteed fit and electrical rating matching.
• Vibration Resistance: Built to endure the high-frequency vibrations of HVAC compressor discharge lines without nuisance tripping.

Common Technical Questions:

Is this an auto-reset or manual reset pressure switch?
This is an auto-reset pressure control, meaning it will automatically close the circuit once the system pressure drops back to the 450 PSI threshold.

Can this be used for low-pressure side monitoring?
No, this model is specifically a high-pressure cutout switch. Using a 650 PSI pilot for low-side protection would fail to protect the system from freeze-ups or loss of charge.

Does this switch work with R-410A systems?
Yes, the 650 PSI trip point is standard for high-pressure protection in modern R-410A air conditioning and heat pump units.

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.