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Direct OEM Compatibility: Specifically designed for Armstrong R45688-001 applications
The set point is adjusted using the visible dial on the face of the control
Using a switch with an incorrect rating can cause the unit to run under unsafe conditions or fail to ignite entirely
the internal contacts will close again to allow the system to resume its heating cycle
Broad Temperature Stability: Functions reliably from sub-freezing 5
Lennox 18M84 Limit Switch Els PW 17895 Direct OEM Compatibility: Specifically designedProfessional 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
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