York S1-025-17620-705 Pressure Switch 340155-7024 or a blocked flue vent

or a blocked flue vent

Built for high-demand HVAC environments

using the 8402-020BX ensures total compatibility

Does this part work for both natural gas and propane applications

A technician will typically find the system "hunting" for the setpoint

York S1-025-17620-705 Pressure Switch 340155-7024 or a blocked flue ventThe York S1 025 17620 705 is a critical HVAC low pressure switch engineered as an OEM replacement part for York, Coleman, and Luxaire condensing units. As a veteren grade refrigerant pressure control, this encapsulated switch monitors the suction line to prevent compressor slugging and catastrophic failure due to loss of charge or restricted metering devices. This specific 38 23# pressure switch is calibrated to open at 23 PSI and close at 38 PSI, an