Use the manual test lever located beneath the cover

System Longevity: Prevents excessive heat buildup in the flue assembly

Rugged Construction: Durable cast iron housing with stainless steel internals provides maximum resistance to water hammer and corrosion

Field Reliability: Helps restore system efficiency and prevents winding overheating in high-torque motor applications

making it highly efficient for continuous or intermittent use

Patterson-Kelley 86-7100-0230 Flame Rod Crown 320720-756 Use the manual test leverThe Patterson Kelley 86 7100 0230 Flame Rod Crown (Model 05 050 S) is a critical flame sensing component engineered for precise ionization detection in high efficiency commercial boilers. Designed for compatibility with the Patterson Kelley Mach series and Modu Fire Forced Draft systems, this flame rod ensures the flame safeguard control receives a consistent microamp signal during the combustion cycle. Constructed with high grade alloys to withstand