ASHRAE Number: R-515B Class: A1 Refrigerant Type: Azeotropic blend Typical Lubricant: Polyolester (POE) Replaces: R-134a, R-227ea, R-124 Chemical Formula: R-1234ze / R-227ea (91.1% / 8.9%) Lower Flammability Limit (LFL): Non-flammable Description: Solstice N15 (R-515B) is a non-flammable azeotropic blend designed for use in chillers, heat pumps, and high-ambient air conditioning systems. It features a Global Warming Potential (GWP) of 293 according to the 4th IPCC assessment, making it a more environmentally friendly option compared to many traditional refrigerants. This hydrofluoroolefin (HFO) blend not only provides significant environmental benefits but also aligns with performance standards for new systems. Its design closely resembles R-1234ze, allowing for a long-term solution compatible with both A1 and A2L refrigerants.
