Description
The Lennox 69W55 is an OEM two-stage pressure switch designed for use with compatible Lennox heating and cooling systems. Pressure switches are a critical safety component in modern HVAC equipment, monitoring the negative pressure created by the inducer motor to confirm proper draft and venting before allowing ignition to proceed.
Overview
This two-stage pressure switch is engineered to work with two-stage Lennox furnaces, providing dual-circuit monitoring that corresponds to the low-fire and high-fire stages of operation. By verifying adequate airflow at each stage, the switch helps protect the heat exchanger and prevents unsafe combustion conditions.
Key Features
- Two-stage design monitors both low-fire and high-fire inducer pressure
- OEM Lennox replacement part — ensures fit, form, and function
- Prevents ignition if inducer airflow is insufficient
- Protects heat exchanger from overheating and damage
- Helps maintain safe venting and combustion conditions
- Direct replacement for compatible Lennox furnace models
Application
- Compatible with select two-stage Lennox gas furnaces
- Verify compatibility with your specific Lennox model before ordering
Why Choose OEM Lennox Parts?
Using genuine Lennox replacement components like the 69W55 ensures your system operates as designed, preserving warranty coverage and delivering the reliability your customers expect. Avoid nuisance lockouts and callbacks by replacing worn or failed pressure switches with the correct OEM part.







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