Description
Weil McLain 511-624-512 Pressure Switch Overview
The Weil McLain 511-624-512 is a factory-specified 0.80″ water column (WC) pressure switch designed as a direct OEM replacement for compatible Weil McLain boiler systems. This safety-critical component monitors negative draft pressure produced by the inducer assembly, confirming proper venting conditions before allowing burner operation. By verifying that adequate airflow is present, the pressure switch helps protect the system from unsafe combustion conditions and potential heat exchanger damage.
Key Features
- OEM Weil McLain replacement pressure switch
- Rated set point: 0.80″ water column (WC)
- Monitors inducer/draft pressure to verify safe venting operation
- Prevents burner ignition if proper draft pressure is not established
- Designed for direct drop-in replacement on compatible Weil McLain boiler models
- Helps maintain system safety and operational integrity
Application
This pressure switch is intended for use with Weil McLain boilers that require a 0.80″ WC draft pressure switch. Always verify compatibility with your specific boiler model number before installation. Consult the boiler’s installation and service manual for proper wiring, mounting, and replacement procedures.
Why Choose OEM Weil McLain Parts?
Using genuine Weil McLain replacement components ensures your boiler operates within its designed safety parameters. OEM parts are engineered to exact specifications, providing reliable performance and helping to maintain equipment warranties and certifications.







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