Description
The Burnham Boiler 109108-01 is a factory-specified air proving switch engineered to verify adequate combustion airflow before allowing burner operation. Calibrated to a 2.30″ WC (water column) pressure differential, this switch serves as a critical safety interlock — confirming that the inducer blower or combustion air fan has established proper draft before the ignition sequence begins. This protects your boiler from unsafe operating conditions caused by blocked flue passages, failed blower motors, or insufficient combustion air.
Key Features
- OEM replacement part for compatible Burnham Boiler systems
- Set point: 2.30″ WC (inches water column) pressure differential
- Monitors combustion airflow to verify safe draft conditions before ignition
- Prevents burner firing in the absence of adequate combustion air
- Integrates as a safety interlock within the burner control sequence
- Direct factory replacement for reliable, code-compliant performance
Application
This air proving switch is engineered as a direct OEM replacement for compatible Burnham Boiler equipment. It integrates into the boiler’s control circuit to confirm that the combustion air inducer is operating correctly before each firing cycle. Proper airflow verification is essential for safe, efficient boiler operation and compliance with heating system safety standards.
Why Choose an OEM Replacement?
Using a genuine Burnham Boiler replacement part ensures the switch is calibrated to the exact pressure differential required by your specific boiler model. Off-spec switches can result in nuisance lockouts or, more critically, unsafe operation. The 109108-01 delivers the precise 2.30″ WC set point your system demands — no guesswork, no compromise.
Product Specifications
- Part Number: 109108-01
- Brand: Burnham Boiler
- Type: Air Proving Switch (Pressure Differential Switch)
- Set Point: 2.30″ WC
- Application: Combustion air / draft proving for boiler systems
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