York S1-022-11571-000 Liquid Valve

The York S1-022-11571-000 Liquid Valve is a critical OEM replacement part designed for precision refrigerant management in residential and light commercial condensing units. This 3/8" liquid line valve features a robust brass construction engineered to withstand high-pressure R-410A environments and maintain hermetic integrity. As a primary refrigerant flow control component, it ensures the metered passage of liquid through the high-side circuit, preventing backflow during system cycles and facilitating efficient heat transfer across the evaporator coil. Contractors frequently utilize this York service valve for HVAC system repairs where the existing seat has been compromised by contaminants or mechanical wear. Replacing a failing valve helps mitigate liquid line restrictions, which can otherwise lead to evaporator starving or compressor oil migration issues. This genuine Johnson Controls part is direct-fit for models like the AC024M1021A, ensuring compatibility with factory HVAC refrigeration lines without requiring extensive piping modifications in the field.

• Ensures accurate refrigerant flow regulation to maintain optimal subcooling and system efficiency.
• Manufactured to OEM specifications for exact compatibility with York and Johnson Controls condensing units.
• Robust 3/8-inch connection provides a secure, leak-free union with standard liquid line sets.
• High-durability internal seating designed to resist debris accumulation and prevent liquid line restrictions.
• Simplified installation footprint reduces labor hours during preventative maintenance and coil replacements.

What are the signs of a failing liquid line valve?
Technicians typically look for a significant temperature drop across the valve, indicating a partial restriction. Frosting at the valve outlet or erratic head pressures are also common indicators that the internal mechanism is fouled or failing to open fully.

Is the York S1-022-11571-000 compatible with R-410A systems?
Yes, this valve is engineered to handle the higher operating pressures associated with R-410A cooling systems, making it a standard requirement for modern York split-system repairs.

Can I use this valve for generic 3/8" refrigeration applications?
While it serves as a standard 3/8" liquid valve, it is specifically calibrated for the flow characteristics and dimensions of York HVAC equipment. Verification of the specific unit model is recommended to ensure precise fitment with factory mounting brackets.

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.