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and FS6536-866
5 inch water column calibration
ensuring compatibility with most legacy staging controller systems
cutting power to the burner circuit to prevent heat exchanger damage or flame rollout in the event of a blower failure or restricted airflow
replacing the old sensor with this genuine York replacement part eliminates intermittent ignition failures and prevents unburned gas accumulation
Weil McLain 511-624-643 Sensor Assembly Refrigerant and FS6536-866The Weil McLain 511 624 643 Pressure Sensor Assembly is a critical OEM replacement component designed for high performance hydronic systems. This burner pressure sensor kit includes the transducer and junction box, providing the precise feedback necessary for modulating boiler control and combustion safety. Unlike standard switches, this assembly integrates a no siphon sensor design to deliver accurate static and dynamic pressure differential readings
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