York S1-DP340240 Contactor 323269-701 This combination control kit functions

This combination control kit functions as a unified thermostat and gas regulator

Compatibility: Engineered to integrate directly with Selectra series electronics for reliable burner synchronization

The Emerson Alco 066154 is a TFES 20 ZAA series thermal expansion valve engineered for high-capacity R410A systems

including compressor timing

or specific diagnostic blink codes on the furnace control board indicating a pressure switch circuit failure

York S1-DP340240 Contactor 323269-701 This combination control kit functionsThe York S1 DP340240 Contactor is a definitive purpose switching solution engineered for demanding HVACR applications requiring high load management. This 3 pole contactor is rated for 40 amps FLA (Full Load Amps) and features a 240V coil, making it a standard replacement for many York, Source 1, and Guardian multi phase condenser units and commercial air handlers. As a genuine OEM component, it ensures architectural compatibility with existing