This 140-180F AUTO limit switch is engineered with a calibrated bimetal snap disc that opens at 180°F to prevent heat exchanger damage and automatically resets at 140°F once the plenum temperature stabilizes
Trust this component to restore system integrity and maintain optimal air circulation
often within the contactor coil or thermostat wiring
and Payne air conditioning systems
Common causes include a short in the 24V secondary circuit
Browning AK56H Sheave 320819-301 This 140-180F AUTO limit switchThe Browning AK56H Sheave is a precision engineered single groove cast iron sheave designed for reliable power transmission in light duty HVACR applications. Featuring a 5. 45" outside diameter, this AK series pulley is machined for use with H series bushings, ensuring a secure, concentric fit on the shaft to minimize vibration and bearing wear. Engineered for versatility, it is compatible with 3L, 4L, and A section belts, making it a standard