Lennox 14A45 Dual Pressure Switch 0.50/.90 Water Column

The Lennox 14A45 Dual Pressure Switch (0.50/0.90 Water Column) is a reliable safety component designed for furnaces and HVAC systems. It monitors air pressure within the system to verify proper draft and airflow, ensuring safe burner and ignition operation. By detecting abnormal pressure conditions, the switch shuts down equipment to prevent overheating, system failure, or safety hazards. This dual pressure switch enhances reliability, supports energy-efficient performance, reduces maintenance issues, and extends the lifespan of HVAC equipment while maintaining safe and consistent operation.