This Lennox furnace limit switch is a direct drop-in for several legacy part numbers

Stable 750mV Output: Delivers consistent millivoltage to operate main gas valves in standing pilot systems efficiently

Standard plumbing ferncos are not rated for the exhaust temperatures or chemical exposure found in power-vented flue systems

The internal sensing element is designed to detect ambient air temperature through the flush-mounted assembly

Nidec-US Motors 2131 Motor 322838-754 This Lennox furnace limit switchThe Nidec US Motors 2131 is a high performance shaded pole unit bearing motor engineered for demanding HVAC ventilation and refrigeration applications. Operating at a 1 20 HP equivalent with 35 watts of power, this 230V electric motor delivers a consistent 1550 RPM for precise airflow control. Built with a totally enclosed air over (TEAO) enclosure and a rugged cast iron frame, the 2131 is designed for continuous duty in environments where moisture