Lennox 51M75 Limit Switch 323269-701 it is calibrated specifically for

it is calibrated specifically for natural gas (NAT) applications

Instrument Grade Air: High-density activated carbon media removes vaporous oil contaminants to protect pneumatic actuators and controllers

Installation Flexibility: Reversible rotation and universal stud mount patterns allow for rapid field adaptation

Common Questions & Contractor Tips

Lennox 51M75 Limit Switch 323269-701 it is calibrated specifically forThe Lennox 51M75 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. This OEM Lennox replacement part operates with a fixed temperature range, featuring a 95 125F trip point with an automatic reset configuration. Engineered to monitor heat exchanger temperatures, the Lennox 51M75 prevents overheating by breaking the electrical circuit to the gas valve or blower motor if