Precision Alignment: Pre-configured 2-cell assembly ensures exact burner-to-heat-exchanger positioning for uniform heat distribution

this normally closed (NC) thermal switch is rated to open at 250°F and automatically close at 220°F once internal temperatures return to a safe operating range

return air

70" WC rating is specific to the heat exchanger’s airflow requirements

Are these compatible with both ASME and non-ASME headers

York S1-025-17620-017 Pressure Switch Precision Alignment: Pre-configured 2-cell assemblyThe York S1 025 17620 017 Pressure Switch is a high limit safety control designed for precise HVAC system protection. Engineered for high pressure monitoring, this dual action pressure switch features a fixed 380 PSI open setpoint to prevent compressor damage and a 300 PSI close reset point for automated system recovery. As a genuine York OEM replacement part, it ensures seamless integration and provides the exact electrical specifications required