Description
The Copeland Comfort Control 3F11-120 is a fixed-temperature bimetal disc fan control switch designed for HVAC systems requiring reliable temperature-based fan operation. This control closes on temperature rise within a range of 113 to 127°F and features a 30°F differential for consistent cycling. Built with a 1/2″ bimetal disc, it provides accurate thermal response and automatic reset once temperatures fall below the reset point. Commonly used in air handlers, furnaces, and heating equipment, this switch helps regulate fan operation and maintain proper system performance.
Key Features
- Fixed temperature range: 113–127°F
- 30°F differential temperature
- SPST switch action: closes on temperature rise
- Automatic reset functionality
- 1/2″ bimetal disc sensing element
- Suitable for fan control in HVAC and heating systems
- Replacement part number: 36T22-10846
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