Description
The York S1-025-47301-000 is an OEM thermostatic expansion valve (TXV) engineered for precise refrigerant metering in R-410A cooling systems. Designed for 1-ton capacity applications, this valve features 3/8″ ODM inlet and 3/8″ ODF outlet connections, making it a direct-fit replacement for compatible York equipment. The TXV automatically regulates refrigerant flow into the evaporator coil in response to suction line superheat, protecting the compressor and maximizing system efficiency.
Key Features
- OEM York replacement thermostatic expansion valve
- Rated for 1-ton (1T) system capacity
- Compatible with R-410A refrigerant
- 3/8″ ODM inlet connection
- 3/8″ ODF outlet connection
- Automatic superheat-sensing refrigerant metering
- Protects compressor from liquid slugging
- Optimizes evaporator performance and system efficiency
Application
This TXV is intended for use in York residential and light commercial split-system air conditioners and heat pumps using R-410A refrigerant. Always verify compatibility with your specific York model before installation. Installation should be performed by a licensed HVAC technician in accordance with all applicable codes and manufacturer guidelines.







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