Brahma Photocell FC7/R 18210006

The Brahma FC7/R photocell, SKU 18210006, is a flame sensor designed for precise control of gas burner valves. It provides opening and closing of valves when voltage is applied, with high heat resistance and durability of insulation. This photocell is used in oil-fired and industrial burners where the flame emits visible or infrared light. It is mounted in a viewing sleeve aimed directly at the combustion zone. The catalogue number and manufacturer code 18210006 identify this specific version for the European spare-parts market.

Parts of this type are selected by spectral sensitivity (visible, infrared, or ultraviolet), cable length, connector type, and mechanical fit of the sensing head into the existing sleeve. Before ordering, verify that the new unit matches the original in length and spectral range. Forcing an incorrect type into the sleeve or relying on an incompatible wavelength can cause nuisance lockouts or failure to prove flame.

Common failure modes include contamination of the glass window from soot or moisture, gradual weakening of the photoelectric signal as the cell ages, and damage to the cable sheath or connector. When the burner control energises the ignition sequence, the photocell must detect the presence of flame within the safety time; if no signal is received, the control locks out. Check for soot or moisture on the window, test the signal strength, and inspect the cable and connector for damage.