This assembly fits a wide range of models including the 58MCB120

airtight seal to stop refrigerant leaks and maintain system pressure

the 100167772 provides consistent combustion control and system diagnostics

6-Watt Low Power Consumption: Minimal heat dissipation extends the service life of the valve internal components

Proper sizing is also critical

Functional Devices TR50VA009 Transformer 320788-704 This assembly fits a wideThe Functional Devices TR50VA009 is a versatile, high performance multi tap control transformer designed for demanding HVACR and building automation applications. Engineered with a 50VA power rating, this unit features a triple primary voltage configuration compatible with 120Vac, 208Vac, and 240Vac inputs, outputting a stable 24Vac secondary voltage. A standout safety feature is the integrated manual reset circuit breaker for overcurrent protection,