the 78H55 is the updated manufacturer part number that replaces the older 78H5501 while maintaining the same 120V to 24V conversion ratio and mounting specs

This OEM Carrier replacement part is built to withstand corrosive environments using high-grade materials

while the red/red color-coding ensures rapid identification during field service

Wide Model Support: Verified for use in high-capacity Modine unit heaters

Does this unit have an integrated fuse for protection

Weil McLain 512-200-023 Burner the 78H55 is the updatedThe Weil McLain 512 200 023 Burner is a critical combustion component engineered for high efficiency performance in PFG series boilers. This tubular steel burner is designed to withstand extreme thermal cycles, ensuring consistent flame stabilization and efficient fuel to air mixing in commercial gas boilers. Featuring an integrated pilot bracket, this assembly facilitates precise alignment of the pilot assembly, which is essential for reliable boiler