York S1-3948-3051 Service Valve

The York S1-3948-3051 Suction Line Service Valve is a critical OEM replacement part designed for field technicians maintaining York commercial and residential HVAC systems. This service valve facilitates the isolation of the suction line during system evacuation, charging, or refrigerant recovery, ensuring localized maintenance without discharging the entire system charge. Engineered for refrigerant flow control, the S1-3948-3051 is compatible with a wide array of York condensing units and heat pumps, including series such as BRCQ, BRHQ, and DRCQ. As a dual-function component, it acts as a permanent access port for gauge manifolds while providing a reliable shut-off mechanism for compressor isolation. Featuring a robust build quality that conforms to Safe Drinking Water Act low-lead requirements, this valve is built to survive high-vibration environments typical of HVAC service sets. Transitioning with standard piping sizes, it allows for a leak-free interface, maintaining the long-term efficiency of the refrigeration cycle. Precision-machined for field reliability, it is the standard choice for contractors executing HVAC system servicing and repairs.

• System Isolation: Allows for seamless isolation of the suction line, reducing labor time during component replacement.
• OEM Compatibility: Specifically engineered for York, Johnson Controls, and Luxaire systems, ensuring direct-fit replacement without line-set modifications.
• Field Serviceability: Integrated port allows technicians to monitor suction pressure and manage refrigerant levels accurately.
• Long-Term Durability: Machined for high-pressure refrigerant management, minimizing the risk of leaks at critical junction points.

Is the S1-3948-3051 compatible with R-410A systems?
Yes, this suction line service valve is designed to handle the operating pressures associated with modern refrigerants, including R-410A, provided the fitting sizes match the unit’s specifications.

Does this valve include the internal schrader core?
This HVAC part typically serves as the housing for the service port; technicians should verify the presence of the core and cap to ensure a hermetic seal after manifold gauges are removed.

Can this be used on both residential and commercial York units?
Yes, the York S1-3948-3051 is a versatile component found in various tonnage configurations across York's residential and light commercial equipment lines.

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.