Hydrotherm 02-5206 Flame Detector

The Hydrotherm 02-5206 UV Scanner Flame Detector is a critical safety component designed for high-performance flame monitoring in commercial and industrial HVAC systems. Engineered specifically for equipment utilizing burners, such as boilers and furnaces, this optical sensor detects the ultraviolet radiation emitted by a combustion flame. By continuously sensing the presence of UV light, the 02-5206 provides flame rectification data to the control board, ensuring the fuel supply is immediately terminated if ignition fails or if the flame is extinguished. This rapid response is essential for preventing gas accumulation and mitigating the risk of combustion-related explosions.

Constructed with a durable alloy housing and a high-quality fused silica quartz lens, this UV flame sensor is built to withstand the rigorous conditions of a mechanical room. It is highly effective for both gas and oil-fired burners where standard ionization rods may not be sufficient. For veteran contractors, the Hydrotherm 02-5206 offers a reliable solution for flame detector replacement, maintaining precise boiler safety control and preventing nuisance shutdowns. Its technical design ensures compatibility with standard flame safeguard controllers, making it a staple for heating system maintenance and professional HVAC repair.

• Enhanced Safety: Triggers immediate fuel shut-off during ignition failure to prevent hazardous gas buildup.
• Broad Compatibility: Optimized for use in boilers, furnaces, and high-output burner assemblies.
• Durable Optics: Features a rugged quartz lens designed to resist clouding and maintain sensitivity to UV wavelengths.
• Reliable Monitoring: Provides consistent flame signal verification in environments where optical detection is superior to traditional rods.
• Simplified Service: Designed for standard mounting, streamlining the UV scanner replacement process during routine maintenance.

How do I know if my UV scanner is failing?
Common signs include repeated system lockouts, ignition failure error codes on the control board, or the burner shutting down shortly after a flame is established. Technicians should check for a cracked quartz lens or carbon buildup on the sensor face.

Can I clean the lens of the Hydrotherm 02-5206?
Yes, the lens should be inspected during annual maintenance. Use a soft, lint-free cloth and a non-abrasive cleaner to remove soot or dust, as any obstruction can block UV light and cause nuisance trips.

Does this sensor work with oil-fired burners?
Yes, UV scanners are often preferred for oil flames because they detect the specific ultraviolet spectrum of the combustion, providing more reliable flame sensing than standard rectification rods in those applications.

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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.