Lennox 59W35 Ambient Switch 340155-7026 ensuring optimal static pressure and

ensuring optimal static pressure and exhaust gas flow within the venting system

preventing air binding and optimizing heat transfer efficiency

Incorporating this HVAC draft pressure switch into your service routine ensures long-term reliability and code compliance for high-efficiency heating applications

though local codes and specific orifice sizes may dictate lower operating limits

ensuring the draft inducer motor generates sufficient negative pressure before the ignition sequence begins

Lennox 59W35 Ambient Switch 340155-7026 ensuring optimal static pressure andThe Lennox 59W35 is a critical low ambient pressure switch specifically engineered for Lennox HVAC units operating in cold weather environments. As a veteran technician knows, maintaining proper head pressure is non negotiable when the mercury drops; this OEM replacement part (102312 01) ensures the system modulates fan cycles or provides compressor protection by monitoring refrigerant pressure thresholds. This HVAC pressure switch is a single pole,