White-Rodgers 90-T40F2 Transformer this component is critical for

this component is critical for maintaining the correct BTU input and ensuring stoichiometric combustion within the heat exchanger

this component is forged from premium C360 and C370 brass

mitigating common field issues like soot buildup or uneven heat exchange

High Thermal Stability: Engineered for high-temp boiler environments without losing elasticity or sealing properties

White-Rodgers 90-T40F2 Transformer this component is critical forThe White Rodgers 90 T40F2 Transformer is a robust, foot mount Class II control transformer engineered for demanding HVACR and industrial motor control applications. This 40VA transformer features a primary tap for 208 240V input and a 24VAC secondary output, providing stable low voltage power to contactors, thermostats, and ignition modules. Designed for versatility, this model serves as a field ready replacement for the 620858R; however, please note