Reznor 93389 Tubing

When you are servicing older Reznor unit heaters, precise ignition timing is critical for avoiding delayed ignition or pilot dropouts. The Reznor 93389 is a genuine OEM 8-3/4 inch carryover tubing specifically engineered for natural gas and propane furnace ignition systems. This aluminum lighter tube facilitates the smooth transfer of the pilot flame across the burner rack, ensuring all burner sections ignite simultaneously. A common failure point in industrial heating environments is the corrosion or blockage of the original carryover assembly, which leads to uneven heating and potential safety lockouts.

This aluminum Reznor carryover tube is compatible with a wide range of legacy models, including the Reznor HRPD, X, RX, XE, RXE, and REB series. At a total length of 8.75 inches, it fits into the pre-drilled holes in the burner rack and is often secured using a standard 90-degree brass elbow and 1/4-inch compression fittings. Using OEM Reznor 93389 parts instead of generic alternatives maintains the engineered airflow and prevents improper combustion patterns that can damage the heat exchanger over time.

• Verified Compatibility: Fits Reznor HRPD 250, 300, 350, 400, and 500 units, as well as multiple X-series heater sizes.
• OEM Reliability: Ensures exact orifice alignment for consistent flame carryover across the burner surface.
• Durable Construction: High-grade aluminum tubing resists high-temperature oxidation in industrial applications.
• Direct Fit: Standard 8-3/4" length matches factory specifications for a seamless replacement without field modifications.

What causes a carryover tube to fail?
Continuous exposure to combustion byproducts and moisture can cause aluminum oxidation. Blocked burner ports or soot buildup within the Reznor lighter tube can prevent the flame from reaching the furthest burners, causing the system to trip on high-limit or flame-sensing errors.

Is this part compatible with both Natural Gas and Propane units?
Yes, the 93389 carryover tube is utilized in both fuel configurations. However, ensure you are using the correct orifice and regulator settings as specified in the Reznor technical manual for your specific gas type.

How do I ensure a leak-free installation?
After installing the 1/4" tubing into the brass fittings, always perform a pressure test using a certified leak-detection solution. Never use an open flame to check for leaks on the carryover assembly.

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.