000-227

Ensure the safety and efficiency of your HVAC system with this high-quality Lennox Limit Switch. Designed as a high-limit thermal control, this L140-30F fan disc switch acts as a critical safety mechanism by monitoring the internal temperature of your furnace or heating unit. If the system exceeds a safe operating temperature of 140°F, the switch opens to interrupt the circuit, preventing potential damage or hazards caused by overheating. Once the unit cools by a 30°F differential, the switch resets to restore normal operation. This reliable white-label replacement part is essential for resolving issues like furnace short-cycling or thermal cutout failures, providing peace of mind and maintaining consistent climate control in residential or commercial settings.
Type: Fan Disc High Limit Control Switch
Size: Standard
Application: Commonly used in residential and commercial heating units, gas furnaces, and rooftop HVAC systems as a primary or secondary safety limit control.
Specifications: Cut-out temperature: 140°F; Differential: 30°F; Cut-in temperature: 110°F; Logic: Opens on temperature rise (Normally Closed).