Trane SWT2074 Limit Switch 319825-402 Always verify your bypass humidifier's

Always verify your bypass humidifier's model number before ordering

and the necessary insulation and mounting hardware to ensure accurate temperature sensing on the suction line

When diagnosing airflow issues

Featuring a standard 3/4" NPT inlet and 1/2" NPT outlet

For contractors performing a York furnace repair

Trane SWT2074 Limit Switch 319825-402 Always verify your bypass humidifier'sThe Trane SWT2074 Limit Switch is a critical electromechanical safety control engineered for high precision temperature monitoring in Trane HVAC systems, including furnaces and air handlers. Designed with a bimetallic strip mechanism, this high limit switch is calibrated to trigger at 175F (L175) with a 30F differential, ensuring the system shuts down the gas valve or heating elements if internal temperatures exceed safe operating parameters. This OEM