York S1-025-42680-000 Expansion Valve 321042-401 Broad Compatibility: Validated for use

Broad Compatibility: Validated for use in 120V/240V control circuits across various commercial refrigeration motor protection applications

Can I replace this with a standard 30A fuse

While the 943-0155-00 comes with factory-standard settings for fan cycling

While typically used as a limit

Durable Construction: Heavy-duty bronze body resists corrosion in residential and commercial closed-loop systems

York S1-025-42680-000 Expansion Valve 321042-401 Broad Compatibility: Validated for useThe York S1 025 42680 000 Expansion Valve is a critical metered flow control component engineered for precise refrigerant management in R410A HVAC systems. Designed for high efficiency York evaporator coils and air handlers, this thermostatic expansion valve (TXV) dynamically adjusts refrigerant flow based on the current heat load, ensuring the system maintains optimal superheat levels. By preventing liquid slugging and evaporator freezing, the S1 025