York S1-373-12894-702 Heat Exchanger

The York S1-373-12894-702 Heat Exchanger is an OEM replacement 2-tube secondary heat exchanger assembly designed for precise fitment in York, Luxaire, and Coleman gas furnaces. This critical component facilitates efficient thermal transfer within the condensing furnace section, ensuring proper flue gas cooling and condensate management. Built to OEM specifications, the S1-373-12894-702 addresses common failure points such as stress cracks or clogged secondary coils that lead to pressure switch trips or rollout issues. When performing a furnace heat exchanger replacement, this heavy-gauge aluminized steel unit provides the necessary durability to withstand high-cycle thermal expansion. Verified HVAC replacement parts like this assembly are essential for maintaining the AFUE rating of the original equipment and ensuring safe combustion exhaust. Proper installation requires inspecting the collector box and gaskets to prevent bypass leakage and ensure a reliable HVAC system repair for your clients.

• Direct OEM Fit: Eliminates field modifications, ensuring S1-373-12894-702 compatibility with specific 2-tube furnace platforms.
• Corrosion Resistance: Engineered to handle the corrosive nature of furnace condensate in high-efficiency systems.
• Optimized Heat Transfer: Restores factory-spec thermal output and system efficiency.
• Structural Integrity: Precision-welded construction resists thermal fatigue and premature cracking.

Common Questions

What are the signs that a York secondary heat exchanger needs replacement?
Technicians should look for clogged secondary coils, persistent odors, or a "watery" smell near the burner, and check for high carbon monoxide readings or pressure switch errors caused by restricted airflow through the 2-tube assembly.

Is the S1-373-12894-702 compatible with Coleman and Luxaire units?
Yes, as a Source 1 York part, this exchanger is the correct HVAC furnace part for several brands under the Johnson Controls umbrella, provided the model numbers match the 2-tube specification.

What additional components are needed for installation?
Standard gas furnace repair procedures recommend replacing the collector box gaskets and checking the combustion blower seals when installing a new secondary heat exchanger.

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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.