The Copeland 3F11-170 is a temperature-activated fan control switch designed to regulate blower operation in HVAC and heating systems. This close-on-rise control engages the circuit when temperatures reach approximately 170°F, activating the blower fan to circulate heated air. As the temperature drops, the switch automatically resets, turning the fan off without manual intervention. Built with a reliable bimetal disc, the 3F11-170 ensures accurate temperature response and consistent performance in furnaces, unit heaters, and air handling equipment.
Key Features
- Close-on-rise temperature rating: approximately 170°F (range 162°F–178°F)
- Automatic reset for continuous cycling operation
- Bimetal disc for accurate and repeatable temperature sensing
- Controls blower fan operation in heating systems
- Improves comfort by ensuring proper airflow timing
- Suitable for furnaces, unit heaters, and air handlers
- OEM-grade construction from Emerson / White-Rodgers
