Carrier 328270-409 Tube

The Carrier 328270-409 Tube Pressure Switch is a critical Factory Authorized Part engineered for precise differential pressure monitoring in residential and commercial HVAC systems. This OEM pressure switch tube serves as a direct replacement component, ensuring the induction motor and pressure switch assembly communicate accurate airflow data to the control board. Designed strictly to Carrier HVAC specifications, the 328270-409 maintains the vacuum integrity required to prevent nuisance trips and intermittent ignition failures often caused by aftermarket tubing that lacks the proper heat resistance or wall thickness. This specific furnace pressure switch tubing is essential for technicians performing furnace maintenance or repairing inducer motor assemblies where airflow sensing accuracy is paramount. By utilizing genuine Carrier replacement parts, contractors ensure the system operates within its original safety parameters, protecting the heat exchanger and ensuring efficient combustion cycles.

Key Benefits

• Precise Airflow Monitoring: Engineered to provide accurate vacuum signals between the inducer housing and the pressure switch.
• Factory Authorized Quality: Eliminates the risk of compatibility issues associated with universal tubing kits.
• High-Grade Construction: Built to withstand the temperature fluctuations and mechanical stress found in the furnace burner compartment.
• System Reliability: Helps prevent diagnostic fault codes related to "Pressure Switch Stuck Open" or "Pressure Switch Stuck Closed" errors.
• Safety Compliance: CSA listed and Prop 65 compliant, meeting rigorous industry safety standards for HVAC components.

Common Questions

What causes a pressure switch tube to fail?
Environmental factors such as high heat exposure can cause the tube to become brittle or crack, while moisture buildup in the line (condensate) can lead to blockages, preventing the pressure switch from closing.

Is the Carrier 328270-409 compatible with all Carrier furnaces?
While designed for specific Carrier, Bryant, and Day & Night units, compatibility depends on your specific model number. Always verify the part number against the manufacturer's illustrated parts list for your equipment.

Can I use standard vinyl tubing instead of this OEM part?
It is not recommended. The Carrier 328270-409 is manufactured to specific wall-thickness and flexibility standards to ensure it does not collapse under vacuum or degrade when exposed to the high temperatures near the flue collector box.

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.