Description
The Copeland Comfort 3F05-2 is an adjustable temperature fan control switch designed for HVAC systems requiring flexible fan operation control. This snap disc switch features an adjustable temperature range from 140 to 180°F with a 20°F differential, allowing for precise system tuning. It utilizes an SPST switch action that closes on temperature rise and includes automatic reset functionality when temperatures fall below the setpoint. Commonly used in furnaces and air handling equipment, this control helps regulate fan cycling and maintain proper airflow performance.
Key Features
- Adjustable temperature range: 140–180°F
- 20°F differential temperature
- SPST switch action: closes on temperature rise
- Snap disc design for reliable thermal response
- Automatic reset functionality
- Suitable for HVAC fan control applications
- Replacement part number: 74T12-310709
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