Chemours R454B Refrigerant 20 Pound Cylinder A2L

Product Description

The CHEMOURS R454B is a 20-pound cylinder of Opteon XL41, an A2L mildly flammable hydrofluoroolefin-blend refrigerant designed as a low-global-warming-potential alternative for residential and light commercial cooling and heating equipment. Miscible with POE lubricants, R454B is engineered for systems that are purpose-built to handle A2L refrigerants. It uses a left-hand threaded connection, which is standard for mildly flammable refrigerant cylinders. Licensed HVAC technicians with the appropriate Section 608 certification handle service and recovery of this refrigerant.

R454B is intended for use in equipment specifically designed and rated for this refrigerant. Application coverage is broad and includes heat pumps and chillers, mini-split, multi-split, and ducted-split systems, window units, portable air conditioners, and PTACs. It is not a drop-in replacement for R-410A or other refrigerants and must only be used in equipment factory-charged or rated for R454B. Always verify equipment manufacturer specifications before charging.

Key Features

• A2L mildly flammable classification — lower flammability risk than A3 refrigerants, but requires A2L-rated equipment and proper handling procedures
• Miscible with POE lubricants for compatibility with modern compressor lubrication systems
• Left-hand threaded cylinder connection, standard for A2L and flammable refrigerant cylinders
• 20-pound cylinder size suited for service work across multiple residential and light commercial units
• Low global warming potential formulation meeting current and near-term regulatory requirements

Compatibility

For use exclusively in equipment designed and rated for R454B, including heat pumps, chillers, mini-split systems, multi-split systems, ducted-split units, window units, portable AC units, and PTACs. Do not use in systems designed for other refrigerants.

Installation Notes

R454B must be installed by an EPA Section 608-certified HVAC technician using equipment rated for A2L refrigerants, including recovery machines and manifold gauges approved for A2L use. Power down all electrical circuits to the system before connecting or disconnecting refrigerant lines. Ensure adequate ventilation in the work area, as A2L refrigerants are mildly flammable and heavier than air. Do not mix R454B with other refrigerants or use in systems not factory-rated for this refrigerant.

Technical Specifications

• Refrigerant Designation: R454B
• Trade Name: Opteon XL41
• Flammability Classification: A2L (mildly flammable)
• Lubricant Compatibility: POE
• Cylinder Connection: Left-hand thread
• Net Weight: 20 pounds

Standard Information

• Brand: CHEMOURS
• Manufacturer Part Number: R454B