Lennox 75W15 Limit Switch 323613-751 Versatile Input Compatibility: Supports multiple

Versatile Input Compatibility: Supports multiple voltage and current ranges (0-10V

ASME Section IV Certified: National Board certified to meet stringent safety codes for hot water heating boilers

it meets stringent safety standards for combustion and ventilation applications

this replacement air filter prevents premature wear on internal valves and cylinders

Modern forced-air zoning requires precise management of air velocity to prevent equipment damage and audible noise

Lennox 75W15 Limit Switch 323613-751 Versatile Input Compatibility: Supports multipleThe Lennox 75W15 Limit Switch is a high performance L165 30F limit switch designed as a genuine OEM replacement for residential and commercial heating equipment. Engineered to function as a critical safety control, this Lennox furnace limit switch operates as a normally closed (NC) snap disc limit control that opens at 165F and resets at 135F. This automatic reset component is essential for preventing heat exchanger damage by interrupting the gas