The NCHC24BT5S is a 2-ton evaporator coil engineered for reliable performance with R-454B refrigerant and features a factory-installed refrigerant detection sensor. Built with durable aluminum alloy tube and fin construction tested through 500 hours of salt spray, this coil delivers dependable operation in diverse climates. Pre-formed flanges simplify installation by aligning with matching gas furnaces, while longer service valve connections accommodate both mechanical and brazed methods. An antimicrobial drain pan helps resist mold and mildew growth for cleaner indoor air.