Lennox 59W35 Ambient Switch 340155-7026 Rugged Type 84 Housing: Built

Rugged Type 84 Housing: Built specifically to withstand the high-cycle demands and thermal fluctuations found in air-side equipment

preventing air binding and optimizing heat transfer efficiency

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

you would need the 94-M version or a 166000 head mechanism

this kit supports both internal and external drainage configurations

Lennox 59W35 Ambient Switch 340155-7026 Rugged Type 84 Housing: BuiltThe 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,