Trane SWT3525 Rollout Switch

The Trane SWT3525 Rollout Switch is a critical OEM replacement part designed to maintain the thermal safety of gas-fired HVAC equipment. This flame rollout limit switch features a 200°F actuation set point and a 50°F reset temperature, ensuring the furnace or rooftop unit shuts down if combustion flames spill out of the heat exchanger. Engineered for high-reliability in Precedent, ReliaTel, and Voyager II units, the Trane SWT3525 prevents hazardous conditions caused by cracked heat exchangers or restricted flue venting. As a 200F-50 roll out switch, it provides precise thermal monitoring, replacing legacy part numbers like SWT03525 and A1932. For veteran technicians, this HVAC safety switch is a standard inventory item for resolving "flame rollout" error codes and ensuring system integrity during cold-weather startups. Utilizing genuine Trane furnace parts ensures factory-spec compatibility and long-term performance in commercial and residential heat sections without the risks associated with universal aftermarket alternatives.

• Factory-Calibrated Precision: Features a fixed 200°F trip point specifically tuned for Trane burner assemblies to prevent false tripping while maintaining safety.
• Universal Trane Compatibility: Directly replaces SWT3525, SWT03525, and A1932 models, streamlining service calls for various packaged units.
• Automatic Reset Logic: The 50°F reset threshold allows the system to be serviced and restarted once safe operating temperatures are restored.
• Rugged Construction: Built to withstand the high-ambient conditions of the burner vestibule, ensuring the contacts remain responsive over thousands of cycles.

What causes a Trane rollout switch to trip?
Commonly, a trip is caused by a cracked heat exchanger, a clogged flue, or insufficient combustion air, which forces the flame to "roll out" toward the switch.

Can the SWT3525 be manually reset?
This specific rollout switch is designed with a 200F-50 temperature range. If the switch includes a manual reset button, it must be depressed after the temperature drops; always diagnose the cause of the rollout before resetting.

Is this switch compatible with Voyager and Precedent units?
Yes, the Trane SWT3525 is the standard OEM limit switch for several generations of Trane and American Standard packaged gas/electric rooftops.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.