Description
The York S1-031-03895-000 is an OEM replacement A2L Mitigation Circuit Board engineered for use in York HVAC systems that operate with A2L mildly flammable refrigerants. As the HVAC industry transitions to next-generation low-GWP refrigerants such as R-32 and R-454B, A2L mitigation controls have become a critical safety component — actively monitoring and managing refrigerant levels to reduce ignition risk and ensure code-compliant operation.
This circuit board is designed to integrate seamlessly with compatible York equipment, providing the electronic intelligence required to meet A2L safety protocols. Using a genuine York OEM part ensures proper fitment, reliable performance, and continued compliance with current safety standards.
Key Features
- OEM York replacement circuit board for A2L refrigerant mitigation
- Designed for York HVAC systems utilizing A2L (mildly flammable) refrigerants
- Supports safe system operation in compliance with A2L refrigerant handling requirements
- Direct OEM replacement for accurate fit and reliable performance
- Helps maintain system safety, efficiency, and regulatory compliance
Application
- Compatible with select York residential and light commercial HVAC systems
- Intended for use in equipment designed for A2L refrigerant operation
- Ideal for service technicians performing A2L-compliant system repairs or upgrades
Why A2L Mitigation Matters
A2L refrigerants offer significantly lower global warming potential (GWP) compared to traditional HFC refrigerants, making them a cornerstone of modern HVAC system design. However, their mild flammability classification requires dedicated mitigation controls to ensure safe operation. The York S1-031-03895-000 circuit board provides the necessary electronic safeguards to meet these requirements, making it an essential component for any York system operating on A2L refrigerants.









