Zero Pressure Differential: The normally closed gas valve opens reliably even at 0 PSI

This 3CH-6 configuration features a Hood #3 with a 180-degree flame pattern

as this body is compatible with standard Emerson AMG and AMF coils

For technicians performing Trane furnace troubleshooting

Lochinvar & A.O. Smith 100109872 Ignition Control 30067439-890 Zero Pressure Differential: The normallyThe Lochinvar & A. O. Smith 100109872 Ignition Control is a critical integrated controller designed for precise sequence management in high efficiency water heaters and boilers. This authentic OEM component is a direct replacement for legacy part numbers 9004470205 and 190714 000, ensuring full compatibility with existing hot surface ignition (HSI) systems. This module manages the combustion process by supervising the inducer motor, gas valve, and