York S1-025-15798-700 Transformer R-410A ensuring the internal fuse and

ensuring the internal fuse and winding protections align with the original furnace specifications

System Compatibility: Engineered specifically for Weil McLain GV boilers

the internal diaphragm or electrical contacts have likely failed

while the piggyback style plug on the 6' extension cord enables simple series connection with the cooling load

York S1-025-15798-700 Transformer R-410A ensuring the internal fuse andThe York S1 025 15798 700 Transformer is a heavy duty, commercial grade 250VA control transformer engineered for precision voltage regulation in demanding HVACR environments. Designed to handle dual primary voltages of 240V or 480V, this unit provides stable stepped down secondary outputs of 120V or 140V. As an authentic HVAC OEM replacement part, it ensures seamless integration with York and Johnson Controls rooftop units and air handlers,