White-Rodgers 90-T40F2 Transformer The F61-2600 is compatible with

The F61-2600 is compatible with horizontal junction box configurations but is equally effective for direct-to-wall mounting where no box is present

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

this SPST door switch features a robust 21A rating at 125/250V

Using a multimeter set to the Ohms (Ω) scale

Technicians should consult the specific furnace rating plate and altitude adjustment tables to confirm the exact drill size required for the local BTU content of the gas

White-Rodgers 90-T40F2 Transformer The F61-2600 is compatible withThe 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