Resideo C554A1794 Flame Detector

The Resideo C554A1794 Flame Detector is a high-performance cadmium sulfide flame detector designed for precise photoconductive flame sensing in modern oil-fired heating systems. This industrial-grade sensor is the direct replacement for 101932 and is specifically engineered for sequencing oil burner systems. To ensure long-term reliability in harsh combustion environments, the plug-in cell features a glass-to-metal hermetic seal that prevents internal component failure caused by humidity, soot, or corrosive oil fumes. For versatile field installation, the unit includes a 60-inch leadwire and a rugged Mounting Bracket Type E, allowing for secure positioning within the burner air tube. This cad cell assembly monitors the burner light profile and communicates directly with the primary control to manage safety shutdowns and sequencing. Professionals typically utilize this detector when servicing Honeywell oil primary controls like the R8184 and R7284 series to maintain optimal HVAC flame detection standards.

• Hermetic Protection: The glass-to-metal seal prevents moisture and soot contamination, maintaining sensing accuracy in 140°F high-heat environments.
• Universal Compatibility: Engineered as a drop-in replacement for the 101932 model and compatible with major oil-fired furnace primary controls.
• Extended Reach: Factory-installed 60-inch NEC Class 1 leads provide ample length for complex burner configurations and wiring runs.
• High Sensitivity: Optimized for rapid detection, triggering safety relays immediately upon flame failure to prevent oil flooding.

Is the cad cell replaceable without changing the entire bracket?
Yes, the C554A1794 features a plug-in cell design, allowing technicians to swap the sensing element (such as the 130367 or 120320) while retaining the original socket and mounting hardware.

What resistance readings should I see during troubleshooting?
When checking the component with an ohmmeter, you should typically see resistance lower than 1,600 ohms when the flame is established and higher than 20,000 ohms when the cell is in total darkness.

Will this work with older mechanical Protectorelay controls?
This detector is designed for use with a wide range of sequencing oil burner systems including R4166, R8182, and R8184 series, making it a staple for maintaining legacy and contemporary equipment.

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.