Resideo by Honeywell 120320 Replacement Cad Cell Assembly for C554A Flame Detector

The Resideo by Honeywell 120320 is a replacement cadmium sulfide cell assembly designed for use with the C554A flame detector in oil burner systems. This replacement cell features a 400-1600 Ohm sensitivity range, providing reliable flame sensing performance for residential and light commercial heating applications.

Key Features:

• Genuine Resideo replacement cell assembly that provides the performance you can rely on
• 400-1600 Ohm sensitivity rating for accurate flame detection
• Produces 7.5 mA at 2 ft-candles of illumination
• Direct plug-in replacement for worn or damaged cad cells in C554A detectors
• Weighs 0.30 lbs for easy handling and installation

This photoconductive flame sensing cell works in conjunction with flame sensing circuitry to cause the Protectorelay control to shutdown the main oil burner on flame failure, ensuring safe operation of your heating system. The glass-to-metal hermetic seal in the plug-in cell prevents deterioration by humidity, soot, or oil fumes, extending service life even in harsh combustion environments.

Compatible with Resideo/Honeywell Protectorelay oil primary controls including R4166, R4184, R8182, R8184, R8185, R8404, and R8991 series. Professional installation by a qualified HVAC technician is required.