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Constructed from heavy-duty galvanized steel
When troubleshooting Weil McLain boiler parts
Industrial Durability: Constructed with high-grade contact materials to resist arcing in high-cycle HVACR environments
Direct lead-free replacement for legacy part numbers 0864939 and 263AP-PRK
specifically designed for 5/8" glass applications
York S1-024-40873-000 Pressure Switch Constructed from heavy-duty galvanized steelThe York S1 024 40873 000 Pressure Switch is a critical safety component engineered for precise airflow monitoring in modern HVAC systems. Designed with a 0. 85" WC setpoint, this SPNO (Single Pole Normally Open) switch utilizes a "Close On Fall" logic to confirm the inducer motor is moving exhaust gases safely through the vent system. As a direct OEM replacement for S1 024 35786 000, it ensures factory spec calibration and timing for sequence of