York S1-025-21710-701 Pressure Control

The York S1-025-21710-701 Pressure Control is a critical OEM safety component designed for precise HVAC refrigerant pressure monitoring in commercial and residential systems. Engineered to operate on a 24V circuit, this control features a dedicated .20" WC (Water Column) set point, ensuring optimized system performance and protecting against low-pressure conditions that can lead to compressor failure or inefficient cooling cycles. As a genuine Source 1 replacement part, it guarantees exact physical and electrical compatibility with York, Coleman, and Luxaire equipment, eliminating the field-adjustment risks associated with universal "one-size-fits-all" switches.

For technicians performing a York pressure switch replacement, this heavy-duty control provides the reliability required for high-cycle applications. The S1-025-21710-701 is built to withstand the rigorous demands of HVACR equipment maintenance, maintaining tight tolerances under fluctuating thermal loads. Integrating this OEM refrigerant pressure control ensures the system adheres to original manufacturer safety specifications, preventing premature wear on high-value components and maintaining the integrity of the refrigerant circuit.

• Precise Pressure Regulation: Calibrated to .20" WC for accurate low-pressure detection and system safety.
• OEM Compatibility: Specifically designed as a direct drop-in for York S1-025-21710-701, ensuring seamless 24V HVAC control integration.
• Enhanced System Protection: Prevents compressor operation during low-charge or restricted airflow conditions, extending the lifespan of the HVACR system.
• Rugged Construction: Industrial-grade materials resist vibration and environmental stress common in outdoor condensing units.

What is the primary function of the York S1-025-21710-701?
This part functions as a safety limit that monitors the pressure within the refrigerant line. It is designed to break the 24V control circuit if the pressure drops below the .20" WC threshold, protecting the compressor from damage.

Can I use this pressure control in 120V or 240V systems?
No, this specific model is designed for 24V refrigerant control circuits. Always verify the control voltage of your transformer and contactor coil before installation to prevent electrical failure.

Is this a manual or automatic reset pressure switch?
The S1-025-21710-701 typically functions as an automatic reset control, allowing the system to resume operation once pressures return to a safe operating range above the set differential, though it should be used in conjunction with a lockout relay if manual intervention is required by local codes.

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.