If you are servicing a Modine unit heater

this K-370 series kit provides the comprehensive internals required to address common failure points in thermostatic steam traps

provided there is a bypass duct connection to the opposite side

it leverages on-board diagnostics to streamline HVAC troubleshooting

Auburn E5-FRS-4-6 Flame Rod 322027-701 If you are servicing aThe Auburn E5 FRS 4 6 Flame Rod is a critical ionization flame sensor designed for the high demand environment of industrial and commercial heating systems. Featuring a 6 inch Kanthal electrode, this component provides reliable signal feedback to the primary control by detecting the presence of a flame via electrical conductivity. The 1 4" NPT mounting facilitates a secure, standardized connection to the burner assembly, ensuring stable positioning