Trane SWT1429 Limit Switch 318423-701 Reliable Actuation: The VA-7150 series

Reliable Actuation: The VA-7150 series actuator provides consistent non-spring return force for precise valve positioning

Enhanced Durability: Structural steel design resists the high-torque stresses common in heavy-duty blower motors

engineered specifically as a low signal selector relay

this adjustable air differential switch is frequently used to prove airflow in exhaust systems by sensing the pressure drop across the fan

Trane SWT1429 Limit Switch 318423-701 Reliable Actuation: The VA-7150 seriesAs a seasoned technician, you know that a tripped Trane SWT1429 Limit Switch is often the first sign of a restricted heat exchanger or blower motor failure. This 3 prong primary high limit switch is a critical safety component designed to monitor the supply plenum temperature in Trane and American Standard furnaces. Engineered to open the 24V control circuit when internal temperatures exceed safe operating parameterstypically around 175F to 190F