Trane SWT2514 Pressure Switch

The Trane SWT2514 Pressure Switch is an essential OEM safety component designed for precise draft verification in high-efficiency gas furnaces. Rated at 1.33" WC, this single pole single throw (SPST) switch ensures that the inducer motor is moving sufficient combustion air and clearing flue gases before allowing the ignition sequence to proceed. It features a standard 1/4" barb connection for seamless integration into existing vacuum lines and is specifically engineered to replace older or failed furnace air pressure switches in American Standard and Trane systems.

For technicians performing field diagnostics, the SWT2514 is a direct cross-reference for C341825P03 and Honeywell IS20145-3341. In a typical HVAC 24V control circuit, this switch remains normally open and closes only when the correct negative pressure differential is sensed, preventing the gas valve from energizing under unsafe venting conditions. Its robust diaphragm construction is built to withstand the rigorous cycling experienced in residential heating applications, maintaining pressure setpoint accuracy across thousands of run cycles.

• Universal Compatibility: Validated as a direct replacement for IS20145-3341 and C341825P03 models.
• Precise Draft Sensing: Factory-calibrated to 1.33" Water Column to ensure exact airflow requirements are met.
• Durable Construction: Features a high-reliability diaphragm and 1/4 inch barb for secure, leak-free vacuum hose attachment.
• Enhanced Safety: Critical gas furnace safety part that prevents operation during vent blockages or inducer failure.

Common Questions

What are the symptoms of a failing Trane SWT2514?
Common indicators include the furnace failing to ignite while the inducer motor runs continuously, or the control board flashing a "pressure switch stuck open" error code. Ensure vacuum lines are clear of moisture before replacement.

Can I use this to replace a switch with a 1.15" WC rating?
No. Pressure switches must match the manufacturer’s specified water column rating exactly to ensure the furnace operates within its designed safety parameters and draft requirements.

Does this switch handle high voltage?
While the contacts may be rated for higher loads, this unit typically operates within the 24VAC control circuit. Always verify your specific wiring diagram before installation.

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.