York S1-024-35903-000 Pressure Switch 320074-702 featuring a slow-opening characteristic that

featuring a slow-opening characteristic that ensures smooth ignition and prevents "delayed ignition" or burner resonance

timing compressor cycles and fan speeds for maximum thermal efficiency

This unit is housed in a robust NEMA 1 enclosure

5 Amps and an ambient temperature rating up to 175°F

maintaining terminal compatibility for standard applications

York S1-024-35903-000 Pressure Switch 320074-702 featuring a slow-opening characteristic thatThe York S1 024 35903 000 is a high precision dual stage pressure switch engineered for modern high efficiency gas furnaces. This component is critical for monitoring the static pressure generated by the draft inducer blower, ensuring the combustion process only initiates under safe venting conditions. With factory calibrated set points of . 45" WC and . 85" WC, this switch provides granular feedback to the integrated furnace control board regarding