Lennox 18M84 Limit Switch Els PW 17895 the internal contacts will close

the internal contacts will close again to allow the system to resume its heating cycle

Features a 48-inch trimmable length

Broad Temperature Stability: Functions reliably from sub-freezing 5

The set point is adjusted using the visible dial on the face of the control

maintaining original equipment tolerances for safety and efficiency

Lennox 18M84 Limit Switch Els PW 17895 the internal contacts will closeProfessional grade Lennox 18M84 limit switches are critical safety components designed to regulate internal furnace temperatures and protect heat exchangers from thermal stress. This OEM Lennox limit control features a 3 inch insertion depth and is factory calibrated for an auto reset range of 230 260F. As a normally closed switch, it breaks the electrical circuit to the gas valve if the plenum temperature exceeds the 260F threshold, typically caused