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The York S1-024-42415-000 Contactor is a specialized HVAC single pole contactor designed for high-cycle switching applications in residential and light commercial condensers
it integrates seamlessly with McDonnell & Miller RS-1-LP and Series 150E sensors
System Longevity: Prevents dust buildup on sensitive internal components
Common Installation Questions How do I handle air trapped in the lines of a Setra 230 series
How can I verify if the 221158 switch is faulty
Lennox 77W04 Gas Valve 323055-751 The York S1-024-42415-000 Contactor isThe Lennox 77W04 Gas Valve is a critical OEM component specifically engineered for multi stage heating systems requiring high precision fuel regulation. This 24v 2 stage gas valve (White Rodgers 36J55 254P1) is designed with a 1 2" NPT inlet and outlet, supporting both direct spark and hot surface ignition configurations. As a high performance HVAC replacement part, it handles a maximum pressure of 1 2 PSI with a factory set high fire of 3. 5" W. C.
