What refrigerant is this valve rated for

Proper sizing is also critical

Precise Thermal Protection: Calibrated to trigger at 150°F to prevent structural damage to the heat exchanger

the 100167772 provides consistent combustion control and system diagnostics

airtight seal to stop refrigerant leaks and maintain system pressure

Functional Devices TR50VA009 Transformer 320788-704 What refrigerant is this valveThe 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,