Description
The Patterson-Kelley 26-0000-0631 is an OEM air pressure switch designed as a direct replacement for Patterson-Kelley boilers and heating equipment. Air pressure switches are critical safety and operational components that monitor combustion air or draft pressure, confirming that proper airflow conditions exist before allowing burner ignition to proceed.
Key Features
- OEM Patterson-Kelley replacement part for precise fit and function
- Monitors air pressure to verify safe combustion airflow conditions
- Helps prevent unsafe burner operation in the event of blocked flue or inadequate draft
- Designed for direct drop-in replacement — no modifications required
- Supports reliable, code-compliant boiler and heating system operation
Application
This air pressure switch is intended for use in Patterson-Kelley boiler and heating systems requiring part number 26-0000-0631. Always verify compatibility with your specific equipment model before installation.
Installation Notes
- Refer to the original equipment manufacturer documentation for wiring and mounting specifications
- Replacement should be performed by a qualified HVAC/R technician
- Ensure system is de-energized and depressurized before servicing







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