The NCHC30AT5S is a 2.5-ton evaporator coil engineered for reliable performance with R-454B refrigerant and a factory-installed refrigerant detection system sensor. Featuring durable aluminum alloy tube and fin construction tested to withstand 500 hours of salt spray, this coil delivers consistent operation in diverse climates. Pre-formed flanges align seamlessly with matching furnaces for faster installation, while longer service valve connections accommodate both mechanical and brazed methods. An antimicrobial drain pan helps resist mold and mildew for cleaner indoor air.