System Compatibility: Integration-ready for Series 21 single furnace and Series 31 multi-furnace configurations

Common Questions: Is this compatible with my legacy PXDLX01S unit

and differential air flow in industrial HVAC systems

Genuine OEM Carrier Part: Guaranteed compatibility with specific Carrier

0" WC range by a qualified technician to meet specific furnace gas valve manifold requirements

Lennox 26W45 Pressure Switch 326070-701 System Compatibility: Integration-ready for SeriesThe Lennox 26W45 Pressure Switch is a critical safety component designed for two stage gas furnaces, specifically engineered to monitor combustion air pressure within the inducer assembly. This dual stage pressure switch features precise set points of 0. 90" WC and 1. 50" WC, ensuring the system only proceeds with the ignition sequence when sufficient airflow is present for safe combustion. Built for high reliability in Lennox and Armstrong Air