For HVAC/R systems leveraging A3 refrigerants such as R290/propane, leak detection requirements under UL 60335-2-40, IEC/EN 60355-2-40 Annex LL are of critical importance. While providing very efficient energy exchange capabilities, A3 refrigerants, such as propane, are classified as highly flammable. IEC/UL60335-2-40 mandates that any system containing A3 refrigerants must incorporate leak detection mechanisms to ensure the safety of occupants and the environment. Sensata leak detection systems designed around A3 refrigerants have been designed to minimize ongoing system maintenance and reduce long-term system costs while delivering the fast response times and low power consumption OEMs need to deliver the next generation of heat pumps and other HVAC/R systems. In addition to UL compliance, these sensors meet the stringent requirements for use in explosive atmospheres under the ATEX directive and carry CE marking, demonstrating full conformity with European safety, health, and environmental protection standards. This ensures that OEMs can meet both North American and European regulatory demands with confidence. |  |
A2L 制冷剂泄漏检测
Sensata’s Resonix RGD Sensors (designed for A2L refrigerant leak detection under UL60335-2-40) deliver a highly accurate solution for these hydrofluoroolefin refrigerants. 该传感器在 15 年以上的使用寿命内无需校准或归零，有助于在设备的整个使用寿命内降低拥有成本。