Trane SWT1274 Limit Switch 320074-702 by ensuring consistent discharge of

by ensuring consistent discharge of flue gases through either horizontal or vertical Category III vent runs

and recirculation pumps

Common signs include a blower motor that fails to start

this is a 4-cell assembly designed for specific BTU-rated cabinets

Trane SWT1274 Limit Switch 320074-702 by ensuring consistent discharge ofThe Trane SWT1274 Limit Switch (also listed as SWT01274) is a high precision HVAC safety control designed for furnace high limit protection. As a veteran grade OEM furnace part, this thermal limit switch is engineered to monitor the supply plenum temperature, providing a critical fail safe against heat exchanger damage. It operates with a fixed factory setting that opens at 125F to break the heating circuit and closes at 95F to allow for an automatic